Version 1.1.0-dev.4.0

svn merge -r 30923:31107 https://dart.googlecode.com/svn/branches/bleeding_edge trunk

git-svn-id: http://dart.googlecode.com/svn/trunk@31123 260f80e4-7a28-3924-810f-c04153c831b5
diff --git a/pkg/analyzer/lib/src/generated/ast.dart b/pkg/analyzer/lib/src/generated/ast.dart
index b9be96f..91adcd0 100644
--- a/pkg/analyzer/lib/src/generated/ast.dart
+++ b/pkg/analyzer/lib/src/generated/ast.dart
@@ -485,33 +485,33 @@
   /**
    * The strings that are implicitly concatenated.
    */
-  NodeList<StringLiteral> strings;
+  NodeList<StringLiteral> _strings;
 
   /**
    * Initialize a newly created list of adjacent strings.
    *
    * @param strings the strings that are implicitly concatenated
    */
-  AdjacentStrings.full(List<StringLiteral> strings) {
-    this.strings = new NodeList<StringLiteral>(this);
-    this.strings.addAll(strings);
+  AdjacentStrings(List<StringLiteral> strings) {
+    this._strings = new NodeList<StringLiteral>(this);
+    this._strings.addAll(strings);
   }
 
-  /**
-   * Initialize a newly created list of adjacent strings.
-   *
-   * @param strings the strings that are implicitly concatenated
-   */
-  AdjacentStrings({List<StringLiteral> strings}) : this.full(strings);
-
   accept(ASTVisitor visitor) => visitor.visitAdjacentStrings(this);
 
-  Token get beginToken => strings.beginToken;
+  Token get beginToken => _strings.beginToken;
 
-  Token get endToken => strings.endToken;
+  Token get endToken => _strings.endToken;
+
+  /**
+   * Return the strings that are implicitly concatenated.
+   *
+   * @return the strings that are implicitly concatenated
+   */
+  NodeList<StringLiteral> get strings => _strings;
 
   void visitChildren(ASTVisitor visitor) {
-    strings.accept(visitor);
+    _strings.accept(visitor);
   }
 
   void appendStringValue(JavaStringBuilder builder) {
@@ -545,20 +545,12 @@
    * @param comment the documentation comment associated with this node
    * @param metadata the annotations associated with this node
    */
-  AnnotatedNode.full(Comment comment, List<Annotation> metadata) {
+  AnnotatedNode(Comment comment, List<Annotation> metadata) {
     this._metadata = new NodeList<Annotation>(this);
     this._comment = becomeParentOf(comment);
     this._metadata.addAll(metadata);
   }
 
-  /**
-   * Initialize a newly created node.
-   *
-   * @param comment the documentation comment associated with this node
-   * @param metadata the annotations associated with this node
-   */
-  AnnotatedNode({Comment comment, List<Annotation> metadata}) : this.full(comment, metadata);
-
   Token get beginToken {
     if (_comment == null) {
       if (_metadata.isEmpty) {
@@ -722,29 +714,12 @@
    * @param arguments the arguments to the constructor being invoked, or `null` if this
    *          annotation is not the invocation of a constructor
    */
-  Annotation.full(Token atSign, Identifier name, Token period, SimpleIdentifier constructorName, ArgumentList arguments) {
-    this.atSign = atSign;
+  Annotation(this.atSign, Identifier name, this.period, SimpleIdentifier constructorName, ArgumentList arguments) {
     this._name = becomeParentOf(name);
-    this.period = period;
     this._constructorName = becomeParentOf(constructorName);
     this._arguments = becomeParentOf(arguments);
   }
 
-  /**
-   * Initialize a newly created annotation.
-   *
-   * @param atSign the at sign that introduced the annotation
-   * @param name the name of the class defining the constructor that is being invoked or the name of
-   *          the field that is being referenced
-   * @param period the period before the constructor name, or `null` if this annotation is not
-   *          the invocation of a named constructor
-   * @param constructorName the name of the constructor being invoked, or `null` if this
-   *          annotation is not the invocation of a named constructor
-   * @param arguments the arguments to the constructor being invoked, or `null` if this
-   *          annotation is not the invocation of a constructor
-   */
-  Annotation({Token atSign, Identifier name, Token period, SimpleIdentifier constructorName, ArgumentList arguments}) : this.full(atSign, name, period, constructorName, arguments);
-
   accept(ASTVisitor visitor) => visitor.visitAnnotation(this);
 
   /**
@@ -869,19 +844,10 @@
    * @param question the token representing the question mark
    * @param identifier the identifier representing the argument being tested
    */
-  ArgumentDefinitionTest.full(Token question, SimpleIdentifier identifier) {
-    this.question = question;
+  ArgumentDefinitionTest(this.question, SimpleIdentifier identifier) {
     this._identifier = becomeParentOf(identifier);
   }
 
-  /**
-   * Initialize a newly created argument definition test.
-   *
-   * @param question the token representing the question mark
-   * @param identifier the identifier representing the argument being tested
-   */
-  ArgumentDefinitionTest({Token question, SimpleIdentifier identifier}) : this.full(question, identifier);
-
   accept(ASTVisitor visitor) => visitor.visitArgumentDefinitionTest(this);
 
   Token get beginToken => question;
@@ -935,7 +901,7 @@
   /**
    * The expressions producing the values of the arguments.
    */
-  NodeList<Expression> arguments;
+  NodeList<Expression> _arguments;
 
   /**
    * The right parenthesis.
@@ -967,24 +933,24 @@
    * @param arguments the expressions producing the values of the arguments
    * @param rightParenthesis the right parenthesis
    */
-  ArgumentList.full(Token leftParenthesis, List<Expression> arguments, Token rightParenthesis) {
-    this.arguments = new NodeList<Expression>(this);
+  ArgumentList(Token leftParenthesis, List<Expression> arguments, Token rightParenthesis) {
+    this._arguments = new NodeList<Expression>(this);
     this._leftParenthesis = leftParenthesis;
-    this.arguments.addAll(arguments);
+    this._arguments.addAll(arguments);
     this._rightParenthesis = rightParenthesis;
   }
 
-  /**
-   * Initialize a newly created list of arguments.
-   *
-   * @param leftParenthesis the left parenthesis
-   * @param arguments the expressions producing the values of the arguments
-   * @param rightParenthesis the right parenthesis
-   */
-  ArgumentList({Token leftParenthesis, List<Expression> arguments, Token rightParenthesis}) : this.full(leftParenthesis, arguments, rightParenthesis);
-
   accept(ASTVisitor visitor) => visitor.visitArgumentList(this);
 
+  /**
+   * Return the expressions producing the values of the arguments. Although the language requires
+   * that positional arguments appear before named arguments, this class allows them to be
+   * intermixed.
+   *
+   * @return the expressions producing the values of the arguments
+   */
+  NodeList<Expression> get arguments => _arguments;
+
   Token get beginToken => _leftParenthesis;
 
   Token get endToken => _rightParenthesis;
@@ -1012,8 +978,8 @@
    * @param parameters the parameter elements corresponding to the arguments
    */
   void set correspondingPropagatedParameters(List<ParameterElement> parameters) {
-    if (parameters.length != arguments.length) {
-      throw new IllegalArgumentException("Expected ${arguments.length} parameters, not ${parameters.length}");
+    if (parameters.length != _arguments.length) {
+      throw new IllegalArgumentException("Expected ${_arguments.length} parameters, not ${parameters.length}");
     }
     _correspondingPropagatedParameters = parameters;
   }
@@ -1027,8 +993,8 @@
    * @param parameters the parameter elements corresponding to the arguments
    */
   void set correspondingStaticParameters(List<ParameterElement> parameters) {
-    if (parameters.length != arguments.length) {
-      throw new IllegalArgumentException("Expected ${arguments.length} parameters, not ${parameters.length}");
+    if (parameters.length != _arguments.length) {
+      throw new IllegalArgumentException("Expected ${_arguments.length} parameters, not ${parameters.length}");
     }
     _correspondingStaticParameters = parameters;
   }
@@ -1052,7 +1018,7 @@
   }
 
   void visitChildren(ASTVisitor visitor) {
-    arguments.accept(visitor);
+    _arguments.accept(visitor);
   }
 
   /**
@@ -1072,7 +1038,7 @@
     if (_correspondingPropagatedParameters == null) {
       return null;
     }
-    int index = arguments.indexOf(expression);
+    int index = _arguments.indexOf(expression);
     if (index < 0) {
       return null;
     }
@@ -1096,7 +1062,7 @@
     if (_correspondingStaticParameters == null) {
       return null;
     }
-    int index = arguments.indexOf(expression);
+    int index = _arguments.indexOf(expression);
     if (index < 0) {
       return null;
     }
@@ -1137,21 +1103,12 @@
    * @param isOperator the is operator
    * @param type the name of the type being cast to
    */
-  AsExpression.full(Expression expression, Token isOperator, TypeName type) {
+  AsExpression(Expression expression, Token isOperator, TypeName type) {
     this._expression = becomeParentOf(expression);
     this.asOperator = isOperator;
     this._type = becomeParentOf(type);
   }
 
-  /**
-   * Initialize a newly created as expression.
-   *
-   * @param expression the expression used to compute the value being cast
-   * @param isOperator the is operator
-   * @param type the name of the type being cast to
-   */
-  AsExpression({Expression expression, Token isOperator, TypeName type}) : this.full(expression, isOperator, type);
-
   accept(ASTVisitor visitor) => visitor.visitAsExpression(this);
 
   Token get beginToken => _expression.beginToken;
@@ -1243,25 +1200,10 @@
    * @param rightParenthesis the right parenthesis
    * @param semicolon the semicolon terminating the statement
    */
-  AssertStatement.full(Token keyword, Token leftParenthesis, Expression condition, Token rightParenthesis, Token semicolon) {
-    this.keyword = keyword;
-    this.leftParenthesis = leftParenthesis;
+  AssertStatement(this.keyword, this.leftParenthesis, Expression condition, this.rightParenthesis, this.semicolon) {
     this._condition = becomeParentOf(condition);
-    this.rightParenthesis = rightParenthesis;
-    this.semicolon = semicolon;
   }
 
-  /**
-   * Initialize a newly created assert statement.
-   *
-   * @param keyword the token representing the 'assert' keyword
-   * @param leftParenthesis the left parenthesis
-   * @param condition the condition that is being asserted to be `true`
-   * @param rightParenthesis the right parenthesis
-   * @param semicolon the semicolon terminating the statement
-   */
-  AssertStatement({Token keyword, Token leftParenthesis, Expression condition, Token rightParenthesis, Token semicolon}) : this.full(keyword, leftParenthesis, condition, rightParenthesis, semicolon);
-
   accept(ASTVisitor visitor) => visitor.visitAssertStatement(this);
 
   Token get beginToken => keyword;
@@ -1336,21 +1278,11 @@
    * @param operator the assignment operator being applied
    * @param rightHandSide the expression used to compute the right hand side
    */
-  AssignmentExpression.full(Expression leftHandSide, Token operator, Expression rightHandSide) {
+  AssignmentExpression(Expression leftHandSide, this.operator, Expression rightHandSide) {
     this._leftHandSide = becomeParentOf(leftHandSide);
-    this.operator = operator;
     this._rightHandSide = becomeParentOf(rightHandSide);
   }
 
-  /**
-   * Initialize a newly created assignment expression.
-   *
-   * @param leftHandSide the expression used to compute the left hand side
-   * @param operator the assignment operator being applied
-   * @param rightHandSide the expression used to compute the right hand side
-   */
-  AssignmentExpression({Expression leftHandSide, Token operator, Expression rightHandSide}) : this.full(leftHandSide, operator, rightHandSide);
-
   accept(ASTVisitor visitor) => visitor.visitAssignmentExpression(this);
 
   Token get beginToken => _leftHandSide.beginToken;
@@ -1542,21 +1474,11 @@
    * @param operator the binary operator being applied
    * @param rightOperand the expression used to compute the right operand
    */
-  BinaryExpression.full(Expression leftOperand, Token operator, Expression rightOperand) {
+  BinaryExpression(Expression leftOperand, this.operator, Expression rightOperand) {
     this._leftOperand = becomeParentOf(leftOperand);
-    this.operator = operator;
     this._rightOperand = becomeParentOf(rightOperand);
   }
 
-  /**
-   * Initialize a newly created binary expression.
-   *
-   * @param leftOperand the expression used to compute the left operand
-   * @param operator the binary operator being applied
-   * @param rightOperand the expression used to compute the right operand
-   */
-  BinaryExpression({Expression leftOperand, Token operator, Expression rightOperand}) : this.full(leftOperand, operator, rightOperand);
-
   accept(ASTVisitor visitor) => visitor.visitBinaryExpression(this);
 
   Token get beginToken => _leftOperand.beginToken;
@@ -1720,7 +1642,7 @@
   /**
    * The statements contained in the block.
    */
-  NodeList<Statement> statements;
+  NodeList<Statement> _statements;
 
   /**
    * The right curly bracket.
@@ -1734,30 +1656,26 @@
    * @param statements the statements contained in the block
    * @param rightBracket the right curly bracket
    */
-  Block.full(Token leftBracket, List<Statement> statements, Token rightBracket) {
-    this.statements = new NodeList<Statement>(this);
-    this.leftBracket = leftBracket;
-    this.statements.addAll(statements);
-    this.rightBracket = rightBracket;
+  Block(this.leftBracket, List<Statement> statements, this.rightBracket) {
+    this._statements = new NodeList<Statement>(this);
+    this._statements.addAll(statements);
   }
 
-  /**
-   * Initialize a newly created block of code.
-   *
-   * @param leftBracket the left curly bracket
-   * @param statements the statements contained in the block
-   * @param rightBracket the right curly bracket
-   */
-  Block({Token leftBracket, List<Statement> statements, Token rightBracket}) : this.full(leftBracket, statements, rightBracket);
-
   accept(ASTVisitor visitor) => visitor.visitBlock(this);
 
   Token get beginToken => leftBracket;
 
   Token get endToken => rightBracket;
 
+  /**
+   * Return the statements contained in the block.
+   *
+   * @return the statements contained in the block
+   */
+  NodeList<Statement> get statements => _statements;
+
   void visitChildren(ASTVisitor visitor) {
-    statements.accept(visitor);
+    _statements.accept(visitor);
   }
 }
 
@@ -1783,17 +1701,10 @@
    *
    * @param block the block representing the body of the function
    */
-  BlockFunctionBody.full(Block block) {
+  BlockFunctionBody(Block block) {
     this._block = becomeParentOf(block);
   }
 
-  /**
-   * Initialize a newly created function body consisting of a block of statements.
-   *
-   * @param block the block representing the body of the function
-   */
-  BlockFunctionBody({Block block}) : this.full(block);
-
   accept(ASTVisitor visitor) => visitor.visitBlockFunctionBody(this);
 
   Token get beginToken => _block.beginToken;
@@ -1848,18 +1759,7 @@
    * @param literal the token representing the literal
    * @param value the value of the literal
    */
-  BooleanLiteral.full(Token literal, bool value) {
-    this.literal = literal;
-    this.value = value;
-  }
-
-  /**
-   * Initialize a newly created boolean literal.
-   *
-   * @param literal the token representing the literal
-   * @param value the value of the literal
-   */
-  BooleanLiteral({Token literal, bool value}) : this.full(literal, value);
+  BooleanLiteral(this.literal, this.value);
 
   accept(ASTVisitor visitor) => visitor.visitBooleanLiteral(this);
 
@@ -1906,21 +1806,10 @@
    * @param label the label associated with the statement
    * @param semicolon the semicolon terminating the statement
    */
-  BreakStatement.full(Token keyword, SimpleIdentifier label, Token semicolon) {
-    this.keyword = keyword;
+  BreakStatement(this.keyword, SimpleIdentifier label, this.semicolon) {
     this._label = becomeParentOf(label);
-    this.semicolon = semicolon;
   }
 
-  /**
-   * Initialize a newly created break statement.
-   *
-   * @param keyword the token representing the 'break' keyword
-   * @param label the label associated with the statement
-   * @param semicolon the semicolon terminating the statement
-   */
-  BreakStatement({Token keyword, SimpleIdentifier label, Token semicolon}) : this.full(keyword, label, semicolon);
-
   accept(ASTVisitor visitor) => visitor.visitBreakStatement(this);
 
   Token get beginToken => keyword;
@@ -1977,7 +1866,7 @@
   /**
    * The cascade sections sharing the common target.
    */
-  NodeList<Expression> cascadeSections;
+  NodeList<Expression> _cascadeSections;
 
   /**
    * Initialize a newly created cascade expression.
@@ -1985,25 +1874,24 @@
    * @param target the target of the cascade sections
    * @param cascadeSections the cascade sections sharing the common target
    */
-  CascadeExpression.full(Expression target, List<Expression> cascadeSections) {
-    this.cascadeSections = new NodeList<Expression>(this);
+  CascadeExpression(Expression target, List<Expression> cascadeSections) {
+    this._cascadeSections = new NodeList<Expression>(this);
     this._target = becomeParentOf(target);
-    this.cascadeSections.addAll(cascadeSections);
+    this._cascadeSections.addAll(cascadeSections);
   }
 
-  /**
-   * Initialize a newly created cascade expression.
-   *
-   * @param target the target of the cascade sections
-   * @param cascadeSections the cascade sections sharing the common target
-   */
-  CascadeExpression({Expression target, List<Expression> cascadeSections}) : this.full(target, cascadeSections);
-
   accept(ASTVisitor visitor) => visitor.visitCascadeExpression(this);
 
   Token get beginToken => _target.beginToken;
 
-  Token get endToken => cascadeSections.endToken;
+  /**
+   * Return the cascade sections sharing the common target.
+   *
+   * @return the cascade sections sharing the common target
+   */
+  NodeList<Expression> get cascadeSections => _cascadeSections;
+
+  Token get endToken => _cascadeSections.endToken;
 
   int get precedence => 2;
 
@@ -2025,7 +1913,7 @@
 
   void visitChildren(ASTVisitor visitor) {
     safelyVisitChild(_target, visitor);
-    cascadeSections.accept(visitor);
+    _cascadeSections.accept(visitor);
   }
 }
 
@@ -2105,33 +1993,15 @@
    * @param rightParenthesis the right parenthesis
    * @param body the body of the catch block
    */
-  CatchClause.full(Token onKeyword, TypeName exceptionType, Token catchKeyword, Token leftParenthesis, SimpleIdentifier exceptionParameter, Token comma, SimpleIdentifier stackTraceParameter, Token rightParenthesis, Block body) {
-    this.onKeyword = onKeyword;
+  CatchClause(this.onKeyword, TypeName exceptionType, this.catchKeyword, Token leftParenthesis, SimpleIdentifier exceptionParameter, this.comma, SimpleIdentifier stackTraceParameter, Token rightParenthesis, Block body) {
     this.exceptionType = becomeParentOf(exceptionType);
-    this.catchKeyword = catchKeyword;
     this._leftParenthesis = leftParenthesis;
     this._exceptionParameter = becomeParentOf(exceptionParameter);
-    this.comma = comma;
     this._stackTraceParameter = becomeParentOf(stackTraceParameter);
     this._rightParenthesis = rightParenthesis;
     this._body = becomeParentOf(body);
   }
 
-  /**
-   * Initialize a newly created catch clause.
-   *
-   * @param onKeyword the token representing the 'on' keyword
-   * @param exceptionType the type of exceptions caught by this catch clause
-   * @param leftParenthesis the left parenthesis
-   * @param exceptionParameter the parameter whose value will be the exception that was thrown
-   * @param comma the comma separating the exception parameter from the stack trace parameter
-   * @param stackTraceParameter the parameter whose value will be the stack trace associated with
-   *          the exception
-   * @param rightParenthesis the right parenthesis
-   * @param body the body of the catch block
-   */
-  CatchClause({Token onKeyword, TypeName exceptionType, Token catchKeyword, Token leftParenthesis, SimpleIdentifier exceptionParameter, Token comma, SimpleIdentifier stackTraceParameter, Token rightParenthesis, Block body}) : this.full(onKeyword, exceptionType, catchKeyword, leftParenthesis, exceptionParameter, comma, stackTraceParameter, rightParenthesis, body);
-
   accept(ASTVisitor visitor) => visitor.visitCatchClause(this);
 
   Token get beginToken {
@@ -2298,7 +2168,7 @@
   /**
    * The members defined by the class.
    */
-  NodeList<ClassMember> members;
+  NodeList<ClassMember> _members;
 
   /**
    * The right curly bracket.
@@ -2321,38 +2191,16 @@
    * @param members the members defined by the class
    * @param rightBracket the right curly bracket
    */
-  ClassDeclaration.full(Comment comment, List<Annotation> metadata, Token abstractKeyword, Token classKeyword, SimpleIdentifier name, TypeParameterList typeParameters, ExtendsClause extendsClause, WithClause withClause, ImplementsClause implementsClause, Token leftBracket, List<ClassMember> members, Token rightBracket) : super.full(comment, metadata) {
-    this.members = new NodeList<ClassMember>(this);
-    this.abstractKeyword = abstractKeyword;
-    this.classKeyword = classKeyword;
+  ClassDeclaration(Comment comment, List<Annotation> metadata, this.abstractKeyword, this.classKeyword, SimpleIdentifier name, TypeParameterList typeParameters, ExtendsClause extendsClause, WithClause withClause, ImplementsClause implementsClause, this.leftBracket, List<ClassMember> members, this.rightBracket) : super(comment, metadata) {
+    this._members = new NodeList<ClassMember>(this);
     this._name = becomeParentOf(name);
     this.typeParameters = becomeParentOf(typeParameters);
     this._extendsClause = becomeParentOf(extendsClause);
     this._withClause = becomeParentOf(withClause);
     this._implementsClause = becomeParentOf(implementsClause);
-    this.leftBracket = leftBracket;
-    this.members.addAll(members);
-    this.rightBracket = rightBracket;
+    this._members.addAll(members);
   }
 
-  /**
-   * Initialize a newly created class declaration.
-   *
-   * @param comment the documentation comment associated with this class
-   * @param metadata the annotations associated with this class
-   * @param abstractKeyword the 'abstract' keyword, or `null` if the keyword was absent
-   * @param classKeyword the token representing the 'class' keyword
-   * @param name the name of the class being declared
-   * @param typeParameters the type parameters for the class
-   * @param extendsClause the extends clause for the class
-   * @param withClause the with clause for the class
-   * @param implementsClause the implements clause for the class
-   * @param leftBracket the left curly bracket
-   * @param members the members defined by the class
-   * @param rightBracket the right curly bracket
-   */
-  ClassDeclaration({Comment comment, List<Annotation> metadata, Token abstractKeyword, Token classKeyword, SimpleIdentifier name, TypeParameterList typeParameters, ExtendsClause extendsClause, WithClause withClause, ImplementsClause implementsClause, Token leftBracket, List<ClassMember> members, Token rightBracket}) : this.full(comment, metadata, abstractKeyword, classKeyword, name, typeParameters, extendsClause, withClause, implementsClause, leftBracket, members, rightBracket);
-
   accept(ASTVisitor visitor) => visitor.visitClassDeclaration(this);
 
   ClassElement get element => _name != null ? (_name.staticElement as ClassElement) : null;
@@ -2368,6 +2216,28 @@
   ExtendsClause get extendsClause => _extendsClause;
 
   /**
+   * Return the field declared in the class with the given name.
+   *
+   * @param name the name of the field to find
+   * @return the found field or `null` if not found
+   */
+  VariableDeclaration getField(String name) {
+    for (ClassMember classMember in _members) {
+      if (classMember is FieldDeclaration) {
+        FieldDeclaration fieldDeclaration = classMember as FieldDeclaration;
+        NodeList<VariableDeclaration> fields = fieldDeclaration.fields.variables;
+        for (VariableDeclaration field in fields) {
+          SimpleIdentifier fieldName = field.name;
+          if (fieldName != null && name == fieldName.name) {
+            return field;
+          }
+        }
+      }
+    }
+    return null;
+  }
+
+  /**
    * Return the implements clause for the class, or `null` if the class does not implement any
    * interfaces.
    *
@@ -2376,6 +2246,13 @@
   ImplementsClause get implementsClause => _implementsClause;
 
   /**
+   * Return the members defined by the class.
+   *
+   * @return the members defined by the class
+   */
+  NodeList<ClassMember> get members => _members;
+
+  /**
    * Return the name of the class being declared.
    *
    * @return the name of the class being declared
@@ -2457,15 +2334,7 @@
    * @param comment the documentation comment associated with this member
    * @param metadata the annotations associated with this member
    */
-  ClassMember.full(Comment comment, List<Annotation> metadata) : super.full(comment, metadata);
-
-  /**
-   * Initialize a newly created member of a class.
-   *
-   * @param comment the documentation comment associated with this member
-   * @param metadata the annotations associated with this member
-   */
-  ClassMember({Comment comment, List<Annotation> metadata}) : this.full(comment, metadata);
+  ClassMember(Comment comment, List<Annotation> metadata) : super(comment, metadata);
 }
 
 /**
@@ -2534,33 +2403,14 @@
    * @param implementsClause the implements clause for this class
    * @param semicolon the semicolon terminating the declaration
    */
-  ClassTypeAlias.full(Comment comment, List<Annotation> metadata, Token keyword, SimpleIdentifier name, TypeParameterList typeParameters, Token equals, Token abstractKeyword, TypeName superclass, WithClause withClause, ImplementsClause implementsClause, Token semicolon) : super.full(comment, metadata, keyword, semicolon) {
+  ClassTypeAlias(Comment comment, List<Annotation> metadata, Token keyword, SimpleIdentifier name, TypeParameterList typeParameters, this.equals, this.abstractKeyword, TypeName superclass, WithClause withClause, ImplementsClause implementsClause, Token semicolon) : super(comment, metadata, keyword, semicolon) {
     this._name = becomeParentOf(name);
     this._typeParameters = becomeParentOf(typeParameters);
-    this.equals = equals;
-    this.abstractKeyword = abstractKeyword;
     this._superclass = becomeParentOf(superclass);
     this._withClause = becomeParentOf(withClause);
     this._implementsClause = becomeParentOf(implementsClause);
   }
 
-  /**
-   * Initialize a newly created class type alias.
-   *
-   * @param comment the documentation comment associated with this type alias
-   * @param metadata the annotations associated with this type alias
-   * @param keyword the token representing the 'typedef' keyword
-   * @param name the name of the class being declared
-   * @param typeParameters the type parameters for the class
-   * @param equals the token for the '=' separating the name from the definition
-   * @param abstractKeyword the token for the 'abstract' keyword
-   * @param superclass the name of the superclass of the class being declared
-   * @param withClause the with clause for this class
-   * @param implementsClause the implements clause for this class
-   * @param semicolon the semicolon terminating the declaration
-   */
-  ClassTypeAlias({Comment comment, List<Annotation> metadata, Token keyword, SimpleIdentifier name, TypeParameterList typeParameters, Token equals, Token abstractKeyword, TypeName superclass, WithClause withClause, ImplementsClause implementsClause, Token semicolon}) : this.full(comment, metadata, keyword, name, typeParameters, equals, abstractKeyword, superclass, withClause, implementsClause, semicolon);
-
   accept(ASTVisitor visitor) => visitor.visitClassTypeAlias(this);
 
   ClassElement get element => _name != null ? (_name.staticElement as ClassElement) : null;
@@ -2680,17 +2530,7 @@
    * @param keyword the keyword specifying what kind of processing is to be done on the imported
    *          names
    */
-  Combinator.full(Token keyword) {
-    this.keyword = keyword;
-  }
-
-  /**
-   * Initialize a newly created import combinator.
-   *
-   * @param keyword the keyword specifying what kind of processing is to be done on the imported
-   *          names
-   */
-  Combinator({Token keyword}) : this.full(keyword);
+  Combinator(this.keyword);
 
   Token get beginToken => keyword;
 }
@@ -2724,7 +2564,7 @@
    * @param tokens the tokens representing the comment
    * @return the block comment that was created
    */
-  static Comment createBlockComment(List<Token> tokens) => new Comment.full(tokens, CommentType.BLOCK, null);
+  static Comment createBlockComment(List<Token> tokens) => new Comment(tokens, CommentType.BLOCK, null);
 
   /**
    * Create a documentation comment.
@@ -2732,7 +2572,7 @@
    * @param tokens the tokens representing the comment
    * @return the documentation comment that was created
    */
-  static Comment createDocumentationComment(List<Token> tokens) => new Comment.full(tokens, CommentType.DOCUMENTATION, new List<CommentReference>());
+  static Comment createDocumentationComment(List<Token> tokens) => new Comment(tokens, CommentType.DOCUMENTATION, new List<CommentReference>());
 
   /**
    * Create a documentation comment.
@@ -2741,7 +2581,7 @@
    * @param references the references embedded within the documentation comment
    * @return the documentation comment that was created
    */
-  static Comment createDocumentationComment2(List<Token> tokens, List<CommentReference> references) => new Comment.full(tokens, CommentType.DOCUMENTATION, references);
+  static Comment createDocumentationComment2(List<Token> tokens, List<CommentReference> references) => new Comment(tokens, CommentType.DOCUMENTATION, references);
 
   /**
    * Create an end-of-line comment.
@@ -2749,12 +2589,12 @@
    * @param tokens the tokens representing the comment
    * @return the end-of-line comment that was created
    */
-  static Comment createEndOfLineComment(List<Token> tokens) => new Comment.full(tokens, CommentType.END_OF_LINE, null);
+  static Comment createEndOfLineComment(List<Token> tokens) => new Comment(tokens, CommentType.END_OF_LINE, null);
 
   /**
    * The tokens representing the comment.
    */
-  List<Token> tokens;
+  final List<Token> tokens;
 
   /**
    * The type of the comment.
@@ -2765,7 +2605,7 @@
    * The references embedded within the documentation comment. This list will be empty unless this
    * is a documentation comment that has references embedded within it.
    */
-  NodeList<CommentReference> references;
+  NodeList<CommentReference> _references;
 
   /**
    * Initialize a newly created comment.
@@ -2774,22 +2614,12 @@
    * @param type the type of the comment
    * @param references the references embedded within the documentation comment
    */
-  Comment.full(List<Token> tokens, CommentType type, List<CommentReference> references) {
-    this.references = new NodeList<CommentReference>(this);
-    this.tokens = tokens;
+  Comment(this.tokens, CommentType type, List<CommentReference> references) {
+    this._references = new NodeList<CommentReference>(this);
     this._type = type;
-    this.references.addAll(references);
+    this._references.addAll(references);
   }
 
-  /**
-   * Initialize a newly created comment.
-   *
-   * @param tokens the tokens representing the comment
-   * @param type the type of the comment
-   * @param references the references embedded within the documentation comment
-   */
-  Comment({List<Token> tokens, CommentType type, List<CommentReference> references}) : this.full(tokens, type, references);
-
   accept(ASTVisitor visitor) => visitor.visitComment(this);
 
   Token get beginToken => tokens[0];
@@ -2797,6 +2627,13 @@
   Token get endToken => tokens[tokens.length - 1];
 
   /**
+   * Return the references embedded within the documentation comment.
+   *
+   * @return the references embedded within the documentation comment
+   */
+  NodeList<CommentReference> get references => _references;
+
+  /**
    * Return `true` if this is a block comment.
    *
    * @return `true` if this is a block comment
@@ -2818,7 +2655,7 @@
   bool get isEndOfLine => identical(_type, CommentType.END_OF_LINE);
 
   void visitChildren(ASTVisitor visitor) {
-    references.accept(visitor);
+    _references.accept(visitor);
   }
 }
 
@@ -2875,19 +2712,10 @@
    * @param newKeyword the token representing the 'new' keyword
    * @param identifier the identifier being referenced
    */
-  CommentReference.full(Token newKeyword, Identifier identifier) {
-    this.newKeyword = newKeyword;
+  CommentReference(this.newKeyword, Identifier identifier) {
     this._identifier = becomeParentOf(identifier);
   }
 
-  /**
-   * Initialize a newly created reference to a Dart element.
-   *
-   * @param newKeyword the token representing the 'new' keyword
-   * @param identifier the identifier being referenced
-   */
-  CommentReference({Token newKeyword, Identifier identifier}) : this.full(newKeyword, identifier);
-
   accept(ASTVisitor visitor) => visitor.visitCommentReference(this);
 
   Token get beginToken => _identifier.beginToken;
@@ -2945,7 +2773,7 @@
   /**
    * The first token in the token stream that was parsed to form this compilation unit.
    */
-  Token _beginToken;
+  final Token beginToken;
 
   /**
    * The script tag at the beginning of the compilation unit, or `null` if there is no script
@@ -2956,18 +2784,18 @@
   /**
    * The directives contained in this compilation unit.
    */
-  NodeList<Directive> directives;
+  NodeList<Directive> _directives;
 
   /**
    * The declarations contained in this compilation unit.
    */
-  NodeList<CompilationUnitMember> declarations;
+  NodeList<CompilationUnitMember> _declarations;
 
   /**
    * The last token in the token stream that was parsed to form this compilation unit. This token
    * should always have a type of [TokenType.EOF].
    */
-  Token _endToken;
+  final Token endToken;
 
   /**
    * The element associated with this compilation unit, or `null` if the AST structure has not
@@ -2989,32 +2817,29 @@
    * @param declarations the declarations contained in this compilation unit
    * @param endToken the last token in the token stream
    */
-  CompilationUnit.full(Token beginToken, ScriptTag scriptTag, List<Directive> directives, List<CompilationUnitMember> declarations, Token endToken) {
-    this.directives = new NodeList<Directive>(this);
-    this.declarations = new NodeList<CompilationUnitMember>(this);
-    this._beginToken = beginToken;
+  CompilationUnit(this.beginToken, ScriptTag scriptTag, List<Directive> directives, List<CompilationUnitMember> declarations, this.endToken) {
+    this._directives = new NodeList<Directive>(this);
+    this._declarations = new NodeList<CompilationUnitMember>(this);
     this._scriptTag = becomeParentOf(scriptTag);
-    this.directives.addAll(directives);
-    this.declarations.addAll(declarations);
-    this._endToken = endToken;
+    this._directives.addAll(directives);
+    this._declarations.addAll(declarations);
   }
 
-  /**
-   * Initialize a newly created compilation unit to have the given directives and declarations.
-   *
-   * @param beginToken the first token in the token stream
-   * @param scriptTag the script tag at the beginning of the compilation unit
-   * @param directives the directives contained in this compilation unit
-   * @param declarations the declarations contained in this compilation unit
-   * @param endToken the last token in the token stream
-   */
-  CompilationUnit({Token beginToken, ScriptTag scriptTag, List<Directive> directives, List<CompilationUnitMember> declarations, Token endToken}) : this.full(beginToken, scriptTag, directives, declarations, endToken);
-
   accept(ASTVisitor visitor) => visitor.visitCompilationUnit(this);
 
-  Token get beginToken => _beginToken;
+  /**
+   * Return the declarations contained in this compilation unit.
+   *
+   * @return the declarations contained in this compilation unit
+   */
+  NodeList<CompilationUnitMember> get declarations => _declarations;
 
-  Token get endToken => _endToken;
+  /**
+   * Return the directives contained in this compilation unit.
+   *
+   * @return the directives contained in this compilation unit
+   */
+  NodeList<Directive> get directives => _directives;
 
   int get length {
     Token endToken = this.endToken;
@@ -3046,8 +2871,8 @@
   void visitChildren(ASTVisitor visitor) {
     safelyVisitChild(_scriptTag, visitor);
     if (directivesAreBeforeDeclarations()) {
-      directives.accept(visitor);
-      declarations.accept(visitor);
+      _directives.accept(visitor);
+      _declarations.accept(visitor);
     } else {
       for (ASTNode child in sortedDirectivesAndDeclarations) {
         child.accept(visitor);
@@ -3061,11 +2886,11 @@
    * @return `true` if all of the directives are lexically before any declarations
    */
   bool directivesAreBeforeDeclarations() {
-    if (directives.isEmpty || declarations.isEmpty) {
+    if (_directives.isEmpty || _declarations.isEmpty) {
       return true;
     }
-    Directive lastDirective = directives[directives.length - 1];
-    CompilationUnitMember firstDeclaration = declarations[0];
+    Directive lastDirective = _directives[_directives.length - 1];
+    CompilationUnitMember firstDeclaration = _declarations[0];
     return lastDirective.offset < firstDeclaration.offset;
   }
 
@@ -3078,8 +2903,8 @@
    */
   List<ASTNode> get sortedDirectivesAndDeclarations {
     List<ASTNode> childList = new List<ASTNode>();
-    childList.addAll(directives);
-    childList.addAll(declarations);
+    childList.addAll(_directives);
+    childList.addAll(_declarations);
     List<ASTNode> children = new List.from(childList);
     children.sort(ASTNode.LEXICAL_ORDER);
     return children;
@@ -3109,15 +2934,7 @@
    * @param comment the documentation comment associated with this member
    * @param metadata the annotations associated with this member
    */
-  CompilationUnitMember.full(Comment comment, List<Annotation> metadata) : super.full(comment, metadata);
-
-  /**
-   * Initialize a newly created generic compilation unit member.
-   *
-   * @param comment the documentation comment associated with this member
-   * @param metadata the annotations associated with this member
-   */
-  CompilationUnitMember({Comment comment, List<Annotation> metadata}) : this.full(comment, metadata);
+  CompilationUnitMember(Comment comment, List<Annotation> metadata) : super(comment, metadata);
 }
 
 /**
@@ -3167,27 +2984,12 @@
    * @param elseExpression the expression that is executed if the condition evaluates to
    *          `false`
    */
-  ConditionalExpression.full(Expression condition, Token question, Expression thenExpression, Token colon, Expression elseExpression) {
+  ConditionalExpression(Expression condition, this.question, Expression thenExpression, this.colon, Expression elseExpression) {
     this._condition = becomeParentOf(condition);
-    this.question = question;
     this._thenExpression = becomeParentOf(thenExpression);
-    this.colon = colon;
     this._elseExpression = becomeParentOf(elseExpression);
   }
 
-  /**
-   * Initialize a newly created conditional expression.
-   *
-   * @param condition the condition used to determine which expression is executed next
-   * @param question the token used to separate the condition from the then expression
-   * @param thenExpression the expression that is executed if the condition evaluates to
-   *          `true`
-   * @param colon the token used to separate the then expression from the else expression
-   * @param elseExpression the expression that is executed if the condition evaluates to
-   *          `false`
-   */
-  ConditionalExpression({Expression condition, Token question, Expression thenExpression, Token colon, Expression elseExpression}) : this.full(condition, question, thenExpression, colon, elseExpression);
-
   accept(ASTVisitor visitor) => visitor.visitConditionalExpression(this);
 
   Token get beginToken => _condition.beginToken;
@@ -3328,7 +3130,7 @@
   /**
    * The initializers associated with the constructor.
    */
-  NodeList<ConstructorInitializer> initializers;
+  NodeList<ConstructorInitializer> _initializers;
 
   /**
    * The name of the constructor to which this constructor will be redirected, or `null` if
@@ -3345,7 +3147,7 @@
    * The element associated with this constructor, or `null` if the AST structure has not been
    * resolved or if this constructor could not be resolved.
    */
-  ConstructorElement _element;
+  ConstructorElement element;
 
   /**
    * Initialize a newly created constructor declaration.
@@ -3365,41 +3167,16 @@
    *          redirected
    * @param body the body of the constructor
    */
-  ConstructorDeclaration.full(Comment comment, List<Annotation> metadata, Token externalKeyword, Token constKeyword, Token factoryKeyword, Identifier returnType, Token period, SimpleIdentifier name, FormalParameterList parameters, Token separator, List<ConstructorInitializer> initializers, ConstructorName redirectedConstructor, FunctionBody body) : super.full(comment, metadata) {
-    this.initializers = new NodeList<ConstructorInitializer>(this);
-    this.externalKeyword = externalKeyword;
-    this.constKeyword = constKeyword;
-    this.factoryKeyword = factoryKeyword;
+  ConstructorDeclaration(Comment comment, List<Annotation> metadata, this.externalKeyword, this.constKeyword, this.factoryKeyword, Identifier returnType, this.period, SimpleIdentifier name, FormalParameterList parameters, this.separator, List<ConstructorInitializer> initializers, ConstructorName redirectedConstructor, FunctionBody body) : super(comment, metadata) {
+    this._initializers = new NodeList<ConstructorInitializer>(this);
     this._returnType = becomeParentOf(returnType);
-    this.period = period;
     this._name = becomeParentOf(name);
     this._parameters = becomeParentOf(parameters);
-    this.separator = separator;
-    this.initializers.addAll(initializers);
+    this._initializers.addAll(initializers);
     this._redirectedConstructor = becomeParentOf(redirectedConstructor);
     this._body = becomeParentOf(body);
   }
 
-  /**
-   * Initialize a newly created constructor declaration.
-   *
-   * @param externalKeyword the token for the 'external' keyword
-   * @param comment the documentation comment associated with this constructor
-   * @param metadata the annotations associated with this constructor
-   * @param constKeyword the token for the 'const' keyword
-   * @param factoryKeyword the token for the 'factory' keyword
-   * @param returnType the return type of the constructor
-   * @param period the token for the period before the constructor name
-   * @param name the name of the constructor
-   * @param parameters the parameters associated with the constructor
-   * @param separator the token for the colon or equals before the initializers
-   * @param initializers the initializers associated with the constructor
-   * @param redirectedConstructor the name of the constructor to which this constructor will be
-   *          redirected
-   * @param body the body of the constructor
-   */
-  ConstructorDeclaration({Comment comment, List<Annotation> metadata, Token externalKeyword, Token constKeyword, Token factoryKeyword, Identifier returnType, Token period, SimpleIdentifier name, FormalParameterList parameters, Token separator, List<ConstructorInitializer> initializers, ConstructorName redirectedConstructor, FunctionBody body}) : this.full(comment, metadata, externalKeyword, constKeyword, factoryKeyword, returnType, period, name, parameters, separator, initializers, redirectedConstructor, body);
-
   accept(ASTVisitor visitor) => visitor.visitConstructorDeclaration(this);
 
   /**
@@ -3409,18 +3186,23 @@
    */
   FunctionBody get body => _body;
 
-  ConstructorElement get element => _element;
-
   Token get endToken {
     if (_body != null) {
       return _body.endToken;
-    } else if (!initializers.isEmpty) {
-      return initializers.endToken;
+    } else if (!_initializers.isEmpty) {
+      return _initializers.endToken;
     }
     return _parameters.endToken;
   }
 
   /**
+   * Return the initializers associated with the constructor.
+   *
+   * @return the initializers associated with the constructor
+   */
+  NodeList<ConstructorInitializer> get initializers => _initializers;
+
+  /**
    * Return the name of the constructor, or `null` if the constructor being declared is
    * unnamed.
    *
@@ -3462,15 +3244,6 @@
   }
 
   /**
-   * Set the element associated with this constructor to the given element.
-   *
-   * @param element the element associated with this constructor
-   */
-  void set element(ConstructorElement element) {
-    this._element = element;
-  }
-
-  /**
    * Set the name of the constructor to the given identifier.
    *
    * @param identifier the name of the constructor
@@ -3513,7 +3286,7 @@
     safelyVisitChild(_returnType, visitor);
     safelyVisitChild(_name, visitor);
     safelyVisitChild(_parameters, visitor);
-    initializers.accept(visitor);
+    _initializers.accept(visitor);
     safelyVisitChild(_redirectedConstructor, visitor);
     safelyVisitChild(_body, visitor);
   }
@@ -3593,26 +3366,11 @@
    * @param equals the token for the equal sign between the field name and the expression
    * @param expression the expression computing the value to which the field will be initialized
    */
-  ConstructorFieldInitializer.full(Token keyword, Token period, SimpleIdentifier fieldName, Token equals, Expression expression) {
-    this.keyword = keyword;
-    this.period = period;
+  ConstructorFieldInitializer(this.keyword, this.period, SimpleIdentifier fieldName, this.equals, Expression expression) {
     this._fieldName = becomeParentOf(fieldName);
-    this.equals = equals;
     this._expression = becomeParentOf(expression);
   }
 
-  /**
-   * Initialize a newly created field initializer to initialize the field with the given name to the
-   * value of the given expression.
-   *
-   * @param keyword the token for the 'this' keyword
-   * @param period the token for the period after the 'this' keyword
-   * @param fieldName the name of the field being initialized
-   * @param equals the token for the equal sign between the field name and the expression
-   * @param expression the expression computing the value to which the field will be initialized
-   */
-  ConstructorFieldInitializer({Token keyword, Token period, SimpleIdentifier fieldName, Token equals, Expression expression}) : this.full(keyword, period, fieldName, equals, expression);
-
   accept(ASTVisitor visitor) => visitor.visitConstructorFieldInitializer(this);
 
   Token get beginToken {
@@ -3720,21 +3478,11 @@
    * @param period the token for the period before the constructor name
    * @param name the name of the constructor
    */
-  ConstructorName.full(TypeName type, Token period, SimpleIdentifier name) {
+  ConstructorName(TypeName type, this.period, SimpleIdentifier name) {
     this._type = becomeParentOf(type);
-    this.period = period;
     this._name = becomeParentOf(name);
   }
 
-  /**
-   * Initialize a newly created constructor name.
-   *
-   * @param type the name of the type defining the constructor
-   * @param period the token for the period before the constructor name
-   * @param name the name of the constructor
-   */
-  ConstructorName({TypeName type, Token period, SimpleIdentifier name}) : this.full(type, period, name);
-
   accept(ASTVisitor visitor) => visitor.visitConstructorName(this);
 
   Token get beginToken => _type.beginToken;
@@ -3837,21 +3585,10 @@
    * @param label the label associated with the statement
    * @param semicolon the semicolon terminating the statement
    */
-  ContinueStatement.full(Token keyword, SimpleIdentifier label, Token semicolon) {
-    this.keyword = keyword;
+  ContinueStatement(this.keyword, SimpleIdentifier label, this.semicolon) {
     this._label = becomeParentOf(label);
-    this.semicolon = semicolon;
   }
 
-  /**
-   * Initialize a newly created continue statement.
-   *
-   * @param keyword the token representing the 'continue' keyword
-   * @param label the label associated with the statement
-   * @param semicolon the semicolon terminating the statement
-   */
-  ContinueStatement({Token keyword, SimpleIdentifier label, Token semicolon}) : this.full(keyword, label, semicolon);
-
   accept(ASTVisitor visitor) => visitor.visitContinueStatement(this);
 
   Token get beginToken => keyword;
@@ -3892,15 +3629,7 @@
    * @param comment the documentation comment associated with this declaration
    * @param metadata the annotations associated with this declaration
    */
-  Declaration.full(Comment comment, List<Annotation> metadata) : super.full(comment, metadata);
-
-  /**
-   * Initialize a newly created declaration.
-   *
-   * @param comment the documentation comment associated with this declaration
-   * @param metadata the annotations associated with this declaration
-   */
-  Declaration({Comment comment, List<Annotation> metadata}) : this.full(comment, metadata);
+  Declaration(Comment comment, List<Annotation> metadata) : super(comment, metadata);
 
   /**
    * Return the element associated with this declaration, or `null` if either this node
@@ -3938,7 +3667,7 @@
   /**
    * The name of the variable being declared.
    */
-  SimpleIdentifier identifier;
+  SimpleIdentifier _identifier;
 
   /**
    * Initialize a newly created formal parameter.
@@ -3949,23 +3678,11 @@
    * @param type the name of the declared type of the parameter
    * @param identifier the name of the parameter being declared
    */
-  DeclaredIdentifier.full(Comment comment, List<Annotation> metadata, Token keyword, TypeName type, SimpleIdentifier identifier) : super.full(comment, metadata) {
-    this.keyword = keyword;
+  DeclaredIdentifier(Comment comment, List<Annotation> metadata, this.keyword, TypeName type, SimpleIdentifier identifier) : super(comment, metadata) {
     this._type = becomeParentOf(type);
-    this.identifier = becomeParentOf(identifier);
+    this._identifier = becomeParentOf(identifier);
   }
 
-  /**
-   * Initialize a newly created formal parameter.
-   *
-   * @param comment the documentation comment associated with this parameter
-   * @param metadata the annotations associated with this parameter
-   * @param keyword the token representing either the 'final', 'const' or 'var' keyword
-   * @param type the name of the declared type of the parameter
-   * @param identifier the name of the parameter being declared
-   */
-  DeclaredIdentifier({Comment comment, List<Annotation> metadata, Token keyword, TypeName type, SimpleIdentifier identifier}) : this.full(comment, metadata, keyword, type, identifier);
-
   accept(ASTVisitor visitor) => visitor.visitDeclaredIdentifier(this);
 
   LocalVariableElement get element {
@@ -3976,7 +3693,14 @@
     return identifier.staticElement as LocalVariableElement;
   }
 
-  Token get endToken => identifier.endToken;
+  Token get endToken => _identifier.endToken;
+
+  /**
+   * Return the name of the variable being declared.
+   *
+   * @return the name of the variable being declared
+   */
+  SimpleIdentifier get identifier => _identifier;
 
   /**
    * Return the name of the declared type of the parameter, or `null` if the parameter does
@@ -4014,7 +3738,7 @@
   void visitChildren(ASTVisitor visitor) {
     super.visitChildren(visitor);
     safelyVisitChild(_type, visitor);
-    safelyVisitChild(identifier, visitor);
+    safelyVisitChild(_identifier, visitor);
   }
 
   Token get firstTokenAfterCommentAndMetadata {
@@ -4023,7 +3747,7 @@
     } else if (_type != null) {
       return _type.beginToken;
     }
-    return identifier.beginToken;
+    return _identifier.beginToken;
   }
 }
 
@@ -4051,7 +3775,7 @@
   /**
    * The kind of this parameter.
    */
-  ParameterKind _kind;
+  ParameterKind kind;
 
   /**
    * The token separating the parameter from the default value, or `null` if there is no
@@ -4073,23 +3797,11 @@
    * @param separator the token separating the parameter from the default value
    * @param defaultValue the expression computing the default value for the parameter
    */
-  DefaultFormalParameter.full(NormalFormalParameter parameter, ParameterKind kind, Token separator, Expression defaultValue) {
+  DefaultFormalParameter(NormalFormalParameter parameter, this.kind, this.separator, Expression defaultValue) {
     this._parameter = becomeParentOf(parameter);
-    this._kind = kind;
-    this.separator = separator;
     this._defaultValue = becomeParentOf(defaultValue);
   }
 
-  /**
-   * Initialize a newly created default formal parameter.
-   *
-   * @param parameter the formal parameter with which the default value is associated
-   * @param kind the kind of this parameter
-   * @param separator the token separating the parameter from the default value
-   * @param defaultValue the expression computing the default value for the parameter
-   */
-  DefaultFormalParameter({NormalFormalParameter parameter, ParameterKind kind, Token separator, Expression defaultValue}) : this.full(parameter, kind, separator, defaultValue);
-
   accept(ASTVisitor visitor) => visitor.visitDefaultFormalParameter(this);
 
   Token get beginToken => _parameter.beginToken;
@@ -4111,8 +3823,6 @@
 
   SimpleIdentifier get identifier => _parameter.identifier;
 
-  ParameterKind get kind => _kind;
-
   /**
    * Return the formal parameter with which the default value is associated.
    *
@@ -4134,15 +3844,6 @@
   }
 
   /**
-   * Set the kind of this parameter to the given kind.
-   *
-   * @param kind the kind of this parameter
-   */
-  void set kind(ParameterKind kind) {
-    this._kind = kind;
-  }
-
-  /**
    * Set the formal parameter with which the default value is associated to the given parameter.
    *
    * @param formalParameter the formal parameter with which the default value is associated
@@ -4185,15 +3886,7 @@
    * @param comment the documentation comment associated with this directive
    * @param metadata the annotations associated with the directive
    */
-  Directive.full(Comment comment, List<Annotation> metadata) : super.full(comment, metadata);
-
-  /**
-   * Initialize a newly create directive.
-   *
-   * @param comment the documentation comment associated with this directive
-   * @param metadata the annotations associated with the directive
-   */
-  Directive({Comment comment, List<Annotation> metadata}) : this.full(comment, metadata);
+  Directive(Comment comment, List<Annotation> metadata) : super(comment, metadata);
 
   /**
    * Return the element associated with this directive, or `null` if the AST structure has not
@@ -4279,29 +3972,13 @@
    * @param rightParenthesis the right parenthesis
    * @param semicolon the semicolon terminating the statement
    */
-  DoStatement.full(Token doKeyword, Statement body, Token whileKeyword, Token leftParenthesis, Expression condition, Token rightParenthesis, Token semicolon) {
-    this.doKeyword = doKeyword;
+  DoStatement(this.doKeyword, Statement body, this.whileKeyword, Token leftParenthesis, Expression condition, Token rightParenthesis, this.semicolon) {
     this._body = becomeParentOf(body);
-    this.whileKeyword = whileKeyword;
     this._leftParenthesis = leftParenthesis;
     this._condition = becomeParentOf(condition);
     this._rightParenthesis = rightParenthesis;
-    this.semicolon = semicolon;
   }
 
-  /**
-   * Initialize a newly created do loop.
-   *
-   * @param doKeyword the token representing the 'do' keyword
-   * @param body the body of the loop
-   * @param whileKeyword the token representing the 'while' keyword
-   * @param leftParenthesis the left parenthesis
-   * @param condition the condition that determines when the loop will terminate
-   * @param rightParenthesis the right parenthesis
-   * @param semicolon the semicolon terminating the statement
-   */
-  DoStatement({Token doKeyword, Statement body, Token whileKeyword, Token leftParenthesis, Expression condition, Token rightParenthesis, Token semicolon}) : this.full(doKeyword, body, whileKeyword, leftParenthesis, condition, rightParenthesis, semicolon);
-
   accept(ASTVisitor visitor) => visitor.visitDoStatement(this);
 
   Token get beginToken => doKeyword;
@@ -4409,18 +4086,7 @@
    * @param literal the token representing the literal
    * @param value the value of the literal
    */
-  DoubleLiteral.full(Token literal, double value) {
-    this.literal = literal;
-    this.value = value;
-  }
-
-  /**
-   * Initialize a newly created floating point literal.
-   *
-   * @param literal the token representing the literal
-   * @param value the value of the literal
-   */
-  DoubleLiteral({Token literal, double value}) : this.full(literal, value);
+  DoubleLiteral(this.literal, this.value);
 
   accept(ASTVisitor visitor) => visitor.visitDoubleLiteral(this);
 
@@ -4454,16 +4120,7 @@
    *
    * @param semicolon the token representing the semicolon that marks the end of the function body
    */
-  EmptyFunctionBody.full(Token semicolon) {
-    this.semicolon = semicolon;
-  }
-
-  /**
-   * Initialize a newly created function body.
-   *
-   * @param semicolon the token representing the semicolon that marks the end of the function body
-   */
-  EmptyFunctionBody({Token semicolon}) : this.full(semicolon);
+  EmptyFunctionBody(this.semicolon);
 
   accept(ASTVisitor visitor) => visitor.visitEmptyFunctionBody(this);
 
@@ -4496,16 +4153,7 @@
    *
    * @param semicolon the semicolon terminating the statement
    */
-  EmptyStatement.full(Token semicolon) {
-    this.semicolon = semicolon;
-  }
-
-  /**
-   * Initialize a newly created empty statement.
-   *
-   * @param semicolon the semicolon terminating the statement
-   */
-  EmptyStatement({Token semicolon}) : this.full(semicolon);
+  EmptyStatement(this.semicolon);
 
   accept(ASTVisitor visitor) => visitor.visitEmptyStatement(this);
 
@@ -4523,11 +4171,9 @@
  * @coverage dart.engine.ast
  */
 class EphemeralIdentifier extends SimpleIdentifier {
-  EphemeralIdentifier.full(ASTNode parent, int location) : super.full(new StringToken(TokenType.IDENTIFIER, "", location)) {
+  EphemeralIdentifier(ASTNode parent, int location) : super(new StringToken(TokenType.IDENTIFIER, "", location)) {
     parent.becomeParentOf(this);
   }
-
-  EphemeralIdentifier({ASTNode parent, int location}) : this.full(parent, location);
 }
 
 /**
@@ -4551,19 +4197,7 @@
    * @param combinators the combinators used to control which names are exported
    * @param semicolon the semicolon terminating the directive
    */
-  ExportDirective.full(Comment comment, List<Annotation> metadata, Token keyword, StringLiteral libraryUri, List<Combinator> combinators, Token semicolon) : super.full(comment, metadata, keyword, libraryUri, combinators, semicolon);
-
-  /**
-   * Initialize a newly created export directive.
-   *
-   * @param comment the documentation comment associated with this directive
-   * @param metadata the annotations associated with the directive
-   * @param keyword the token representing the 'export' keyword
-   * @param libraryUri the URI of the library being exported
-   * @param combinators the combinators used to control which names are exported
-   * @param semicolon the semicolon terminating the directive
-   */
-  ExportDirective({Comment comment, List<Annotation> metadata, Token keyword, StringLiteral libraryUri, List<Combinator> combinators, Token semicolon}) : this.full(comment, metadata, keyword, libraryUri, combinators, semicolon);
+  ExportDirective(Comment comment, List<Annotation> metadata, Token keyword, StringLiteral libraryUri, List<Combinator> combinators, Token semicolon) : super(comment, metadata, keyword, libraryUri, combinators, semicolon);
 
   accept(ASTVisitor visitor) => visitor.visitExportDirective(this);
 
@@ -4770,22 +4404,10 @@
    * @param expression the expression representing the body of the function
    * @param semicolon the semicolon terminating the statement
    */
-  ExpressionFunctionBody.full(Token functionDefinition, Expression expression, Token semicolon) {
-    this.functionDefinition = functionDefinition;
+  ExpressionFunctionBody(this.functionDefinition, Expression expression, this.semicolon) {
     this._expression = becomeParentOf(expression);
-    this.semicolon = semicolon;
   }
 
-  /**
-   * Initialize a newly created function body consisting of a block of statements.
-   *
-   * @param functionDefinition the token introducing the expression that represents the body of the
-   *          function
-   * @param expression the expression representing the body of the function
-   * @param semicolon the semicolon terminating the statement
-   */
-  ExpressionFunctionBody({Token functionDefinition, Expression expression, Token semicolon}) : this.full(functionDefinition, expression, semicolon);
-
   accept(ASTVisitor visitor) => visitor.visitExpressionFunctionBody(this);
 
   Token get beginToken => functionDefinition;
@@ -4846,19 +4468,10 @@
    * @param expression the expression that comprises the statement
    * @param semicolon the semicolon terminating the statement
    */
-  ExpressionStatement.full(Expression expression, Token semicolon) {
+  ExpressionStatement(Expression expression, this.semicolon) {
     this._expression = becomeParentOf(expression);
-    this.semicolon = semicolon;
   }
 
-  /**
-   * Initialize a newly created expression statement.
-   *
-   * @param expression the expression that comprises the statement
-   * @param semicolon the semicolon terminating the statement
-   */
-  ExpressionStatement({Expression expression, Token semicolon}) : this.full(expression, semicolon);
-
   accept(ASTVisitor visitor) => visitor.visitExpressionStatement(this);
 
   Token get beginToken => _expression.beginToken;
@@ -4921,19 +4534,10 @@
    * @param keyword the token representing the 'extends' keyword
    * @param superclass the name of the class that is being extended
    */
-  ExtendsClause.full(Token keyword, TypeName superclass) {
-    this.keyword = keyword;
+  ExtendsClause(this.keyword, TypeName superclass) {
     this._superclass = becomeParentOf(superclass);
   }
 
-  /**
-   * Initialize a newly created extends clause.
-   *
-   * @param keyword the token representing the 'extends' keyword
-   * @param superclass the name of the class that is being extended
-   */
-  ExtendsClause({Token keyword, TypeName superclass}) : this.full(keyword, superclass);
-
   accept(ASTVisitor visitor) => visitor.visitExtendsClause(this);
 
   Token get beginToken => keyword;
@@ -4997,23 +4601,10 @@
    * @param fieldList the fields being declared
    * @param semicolon the semicolon terminating the declaration
    */
-  FieldDeclaration.full(Comment comment, List<Annotation> metadata, Token staticKeyword, VariableDeclarationList fieldList, Token semicolon) : super.full(comment, metadata) {
-    this.staticKeyword = staticKeyword;
+  FieldDeclaration(Comment comment, List<Annotation> metadata, this.staticKeyword, VariableDeclarationList fieldList, this.semicolon) : super(comment, metadata) {
     this._fieldList = becomeParentOf(fieldList);
-    this.semicolon = semicolon;
   }
 
-  /**
-   * Initialize a newly created field declaration.
-   *
-   * @param comment the documentation comment associated with this field
-   * @param metadata the annotations associated with this field
-   * @param staticKeyword the token representing the 'static' keyword
-   * @param fieldList the fields being declared
-   * @param semicolon the semicolon terminating the declaration
-   */
-  FieldDeclaration({Comment comment, List<Annotation> metadata, Token staticKeyword, VariableDeclarationList fieldList, Token semicolon}) : this.full(comment, metadata, staticKeyword, fieldList, semicolon);
-
   accept(ASTVisitor visitor) => visitor.visitFieldDeclaration(this);
 
   Element get element => null;
@@ -5108,29 +4699,11 @@
    * @param parameters the parameters of the function-typed parameter, or `null` if this is
    *          not a function-typed field formal parameter
    */
-  FieldFormalParameter.full(Comment comment, List<Annotation> metadata, Token keyword, TypeName type, Token thisToken, Token period, SimpleIdentifier identifier, FormalParameterList parameters) : super.full(comment, metadata, identifier) {
-    this.keyword = keyword;
+  FieldFormalParameter(Comment comment, List<Annotation> metadata, this.keyword, TypeName type, this.thisToken, this.period, SimpleIdentifier identifier, FormalParameterList parameters) : super(comment, metadata, identifier) {
     this._type = becomeParentOf(type);
-    this.thisToken = thisToken;
-    this.period = period;
     this._parameters = becomeParentOf(parameters);
   }
 
-  /**
-   * Initialize a newly created formal parameter.
-   *
-   * @param comment the documentation comment associated with this parameter
-   * @param metadata the annotations associated with this parameter
-   * @param keyword the token representing either the 'final', 'const' or 'var' keyword
-   * @param type the name of the declared type of the parameter
-   * @param thisToken the token representing the 'this' keyword
-   * @param period the token representing the period
-   * @param identifier the name of the parameter being declared
-   * @param parameters the parameters of the function-typed parameter, or `null` if this is
-   *          not a function-typed field formal parameter
-   */
-  FieldFormalParameter({Comment comment, List<Annotation> metadata, Token keyword, TypeName type, Token thisToken, Token period, SimpleIdentifier identifier, FormalParameterList parameters}) : this.full(comment, metadata, keyword, type, thisToken, period, identifier, parameters);
-
   accept(ASTVisitor visitor) => visitor.visitFieldFormalParameter(this);
 
   Token get beginToken {
@@ -5254,13 +4827,9 @@
    * @param rightParenthesis the right parenthesis
    * @param body the body of the loop
    */
-  ForEachStatement.con1_full(Token forKeyword, Token leftParenthesis, DeclaredIdentifier loopVariable, Token inKeyword, Expression iterator, Token rightParenthesis, Statement body) {
-    this.forKeyword = forKeyword;
-    this.leftParenthesis = leftParenthesis;
+  ForEachStatement.con1(this.forKeyword, this.leftParenthesis, DeclaredIdentifier loopVariable, this.inKeyword, Expression iterator, this.rightParenthesis, Statement body) {
     this._loopVariable = becomeParentOf(loopVariable);
-    this.inKeyword = inKeyword;
     this._iterator = becomeParentOf(iterator);
-    this.rightParenthesis = rightParenthesis;
     this._body = becomeParentOf(body);
   }
 
@@ -5269,45 +4838,17 @@
    *
    * @param forKeyword the token representing the 'for' keyword
    * @param leftParenthesis the left parenthesis
-   * @param loopVariable the declaration of the loop variable
-   * @param iterator the expression evaluated to produce the iterator
-   * @param rightParenthesis the right parenthesis
-   * @param body the body of the loop
-   */
-  ForEachStatement.con1({Token forKeyword, Token leftParenthesis, DeclaredIdentifier loopVariable, Token inKeyword, Expression iterator, Token rightParenthesis, Statement body}) : this.con1_full(forKeyword, leftParenthesis, loopVariable, inKeyword, iterator, rightParenthesis, body);
-
-  /**
-   * Initialize a newly created for-each statement.
-   *
-   * @param forKeyword the token representing the 'for' keyword
-   * @param leftParenthesis the left parenthesis
    * @param identifier the loop variable
    * @param iterator the expression evaluated to produce the iterator
    * @param rightParenthesis the right parenthesis
    * @param body the body of the loop
    */
-  ForEachStatement.con2_full(Token forKeyword, Token leftParenthesis, SimpleIdentifier identifier, Token inKeyword, Expression iterator, Token rightParenthesis, Statement body) {
-    this.forKeyword = forKeyword;
-    this.leftParenthesis = leftParenthesis;
+  ForEachStatement.con2(this.forKeyword, this.leftParenthesis, SimpleIdentifier identifier, this.inKeyword, Expression iterator, this.rightParenthesis, Statement body) {
     this._identifier = becomeParentOf(identifier);
-    this.inKeyword = inKeyword;
     this._iterator = becomeParentOf(iterator);
-    this.rightParenthesis = rightParenthesis;
     this._body = becomeParentOf(body);
   }
 
-  /**
-   * Initialize a newly created for-each statement.
-   *
-   * @param forKeyword the token representing the 'for' keyword
-   * @param leftParenthesis the left parenthesis
-   * @param identifier the loop variable
-   * @param iterator the expression evaluated to produce the iterator
-   * @param rightParenthesis the right parenthesis
-   * @param body the body of the loop
-   */
-  ForEachStatement.con2({Token forKeyword, Token leftParenthesis, SimpleIdentifier identifier, Token inKeyword, Expression iterator, Token rightParenthesis, Statement body}) : this.con2_full(forKeyword, leftParenthesis, identifier, inKeyword, iterator, rightParenthesis, body);
-
   accept(ASTVisitor visitor) => visitor.visitForEachStatement(this);
 
   Token get beginToken => forKeyword;
@@ -5448,7 +4989,7 @@
   /**
    * The list of expressions run after each execution of the loop body.
    */
-  NodeList<Expression> updaters;
+  NodeList<Expression> _updaters;
 
   /**
    * The right parenthesis.
@@ -5474,36 +5015,15 @@
    * @param rightParenthesis the right parenthesis
    * @param body the body of the loop
    */
-  ForStatement.full(Token forKeyword, Token leftParenthesis, VariableDeclarationList variableList, Expression initialization, Token leftSeparator, Expression condition, Token rightSeparator, List<Expression> updaters, Token rightParenthesis, Statement body) {
-    this.updaters = new NodeList<Expression>(this);
-    this.forKeyword = forKeyword;
-    this.leftParenthesis = leftParenthesis;
+  ForStatement(this.forKeyword, this.leftParenthesis, VariableDeclarationList variableList, Expression initialization, this.leftSeparator, Expression condition, this.rightSeparator, List<Expression> updaters, this.rightParenthesis, Statement body) {
+    this._updaters = new NodeList<Expression>(this);
     this._variableList = becomeParentOf(variableList);
     this._initialization = becomeParentOf(initialization);
-    this.leftSeparator = leftSeparator;
     this._condition = becomeParentOf(condition);
-    this.rightSeparator = rightSeparator;
-    this.updaters.addAll(updaters);
-    this.rightParenthesis = rightParenthesis;
+    this._updaters.addAll(updaters);
     this._body = becomeParentOf(body);
   }
 
-  /**
-   * Initialize a newly created for statement.
-   *
-   * @param forKeyword the token representing the 'for' keyword
-   * @param leftParenthesis the left parenthesis
-   * @param variableList the declaration of the loop variables
-   * @param initialization the initialization expression
-   * @param leftSeparator the semicolon separating the initializer and the condition
-   * @param condition the condition used to determine when to terminate the loop
-   * @param rightSeparator the semicolon separating the condition and the updater
-   * @param updaters the list of expressions run after each execution of the loop body
-   * @param rightParenthesis the right parenthesis
-   * @param body the body of the loop
-   */
-  ForStatement({Token forKeyword, Token leftParenthesis, VariableDeclarationList variableList, Expression initialization, Token leftSeparator, Expression condition, Token rightSeparator, List<Expression> updaters, Token rightParenthesis, Statement body}) : this.full(forKeyword, leftParenthesis, variableList, initialization, leftSeparator, condition, rightSeparator, updaters, rightParenthesis, body);
-
   accept(ASTVisitor visitor) => visitor.visitForStatement(this);
 
   Token get beginToken => forKeyword;
@@ -5533,6 +5053,13 @@
   Expression get initialization => _initialization;
 
   /**
+   * Return the list of expressions run after each execution of the loop body.
+   *
+   * @return the list of expressions run after each execution of the loop body
+   */
+  NodeList<Expression> get updaters => _updaters;
+
+  /**
    * Return the declaration of the loop variables, or `null` if there are no variables.
    *
    * @return the declaration of the loop variables, or `null` if there are no variables
@@ -5579,7 +5106,7 @@
     safelyVisitChild(_variableList, visitor);
     safelyVisitChild(_initialization, visitor);
     safelyVisitChild(_condition, visitor);
-    updaters.accept(visitor);
+    _updaters.accept(visitor);
     safelyVisitChild(_body, visitor);
   }
 }
@@ -5683,7 +5210,7 @@
   /**
    * The parameters associated with the method.
    */
-  NodeList<FormalParameter> parameters;
+  NodeList<FormalParameter> _parameters;
 
   /**
    * The left square bracket ('[') or left curly brace ('{') introducing the optional parameters, or
@@ -5711,26 +5238,15 @@
    * @param rightDelimiter the right delimiter introducing the optional parameters
    * @param rightParenthesis the right parenthesis
    */
-  FormalParameterList.full(Token leftParenthesis, List<FormalParameter> parameters, Token leftDelimiter, Token rightDelimiter, Token rightParenthesis) {
-    this.parameters = new NodeList<FormalParameter>(this);
+  FormalParameterList(Token leftParenthesis, List<FormalParameter> parameters, Token leftDelimiter, Token rightDelimiter, Token rightParenthesis) {
+    this._parameters = new NodeList<FormalParameter>(this);
     this._leftParenthesis = leftParenthesis;
-    this.parameters.addAll(parameters);
+    this._parameters.addAll(parameters);
     this._leftDelimiter = leftDelimiter;
     this._rightDelimiter = rightDelimiter;
     this._rightParenthesis = rightParenthesis;
   }
 
-  /**
-   * Initialize a newly created parameter list.
-   *
-   * @param leftParenthesis the left parenthesis
-   * @param parameters the parameters associated with the method
-   * @param leftDelimiter the left delimiter introducing the optional parameters
-   * @param rightDelimiter the right delimiter introducing the optional parameters
-   * @param rightParenthesis the right parenthesis
-   */
-  FormalParameterList({Token leftParenthesis, List<FormalParameter> parameters, Token leftDelimiter, Token rightDelimiter, Token rightParenthesis}) : this.full(leftParenthesis, parameters, leftDelimiter, rightDelimiter, rightParenthesis);
-
   accept(ASTVisitor visitor) => visitor.visitFormalParameterList(this);
 
   Token get beginToken => _leftParenthesis;
@@ -5760,15 +5276,22 @@
    * @return the elements representing the parameters in this list
    */
   List<ParameterElement> get parameterElements {
-    int count = parameters.length;
+    int count = _parameters.length;
     List<ParameterElement> types = new List<ParameterElement>(count);
     for (int i = 0; i < count; i++) {
-      types[i] = parameters[i].element;
+      types[i] = _parameters[i].element;
     }
     return types;
   }
 
   /**
+   * Return the parameters associated with the method.
+   *
+   * @return the parameters associated with the method
+   */
+  NodeList<FormalParameter> get parameters => _parameters;
+
+  /**
    * Return the right square bracket (']') or right curly brace ('}') introducing the optional
    * parameters, or `null` if there are no optional parameters.
    *
@@ -5823,7 +5346,7 @@
   }
 
   void visitChildren(ASTVisitor visitor) {
-    parameters.accept(visitor);
+    _parameters.accept(visitor);
   }
 }
 
@@ -5896,27 +5419,12 @@
    * @param name the name of the function
    * @param functionExpression the function expression being wrapped
    */
-  FunctionDeclaration.full(Comment comment, List<Annotation> metadata, Token externalKeyword, TypeName returnType, Token propertyKeyword, SimpleIdentifier name, FunctionExpression functionExpression) : super.full(comment, metadata) {
-    this.externalKeyword = externalKeyword;
+  FunctionDeclaration(Comment comment, List<Annotation> metadata, this.externalKeyword, TypeName returnType, this.propertyKeyword, SimpleIdentifier name, FunctionExpression functionExpression) : super(comment, metadata) {
     this._returnType = becomeParentOf(returnType);
-    this.propertyKeyword = propertyKeyword;
     this._name = becomeParentOf(name);
     this._functionExpression = becomeParentOf(functionExpression);
   }
 
-  /**
-   * Initialize a newly created function declaration.
-   *
-   * @param comment the documentation comment associated with this function
-   * @param metadata the annotations associated with this function
-   * @param externalKeyword the token representing the 'external' keyword
-   * @param returnType the return type of the function
-   * @param propertyKeyword the token representing the 'get' or 'set' keyword
-   * @param name the name of the function
-   * @param functionExpression the function expression being wrapped
-   */
-  FunctionDeclaration({Comment comment, List<Annotation> metadata, Token externalKeyword, TypeName returnType, Token propertyKeyword, SimpleIdentifier name, FunctionExpression functionExpression}) : this.full(comment, metadata, externalKeyword, returnType, propertyKeyword, name, functionExpression);
-
   accept(ASTVisitor visitor) => visitor.visitFunctionDeclaration(this);
 
   ExecutableElement get element => _name != null ? (_name.staticElement as ExecutableElement) : null;
@@ -6017,29 +5525,29 @@
   /**
    * The function declaration being wrapped.
    */
-  FunctionDeclaration functionDeclaration;
+  FunctionDeclaration _functionDeclaration;
 
   /**
    * Initialize a newly created function declaration statement.
    *
    * @param functionDeclaration the the function declaration being wrapped
    */
-  FunctionDeclarationStatement.full(FunctionDeclaration functionDeclaration) {
-    this.functionDeclaration = becomeParentOf(functionDeclaration);
+  FunctionDeclarationStatement(FunctionDeclaration functionDeclaration) {
+    this._functionDeclaration = becomeParentOf(functionDeclaration);
   }
 
-  /**
-   * Initialize a newly created function declaration statement.
-   *
-   * @param functionDeclaration the the function declaration being wrapped
-   */
-  FunctionDeclarationStatement({FunctionDeclaration functionDeclaration}) : this.full(functionDeclaration);
-
   accept(ASTVisitor visitor) => visitor.visitFunctionDeclarationStatement(this);
 
-  Token get beginToken => functionDeclaration.beginToken;
+  Token get beginToken => _functionDeclaration.beginToken;
 
-  Token get endToken => functionDeclaration.endToken;
+  Token get endToken => _functionDeclaration.endToken;
+
+  /**
+   * Return the function declaration being wrapped.
+   *
+   * @return the function declaration being wrapped
+   */
+  FunctionDeclaration get functionDeclaration => _functionDeclaration;
 
   /**
    * Set the function declaration being wrapped to the given function declaration.
@@ -6047,11 +5555,11 @@
    * @param functionDeclaration the function declaration being wrapped
    */
   void set functionExpression(FunctionDeclaration functionDeclaration) {
-    this.functionDeclaration = becomeParentOf(functionDeclaration);
+    this._functionDeclaration = becomeParentOf(functionDeclaration);
   }
 
   void visitChildren(ASTVisitor visitor) {
-    safelyVisitChild(functionDeclaration, visitor);
+    safelyVisitChild(_functionDeclaration, visitor);
   }
 }
 
@@ -6088,19 +5596,11 @@
    * @param parameters the parameters associated with the function
    * @param body the body of the function
    */
-  FunctionExpression.full(FormalParameterList parameters, FunctionBody body) {
+  FunctionExpression(FormalParameterList parameters, FunctionBody body) {
     this._parameters = becomeParentOf(parameters);
     this._body = becomeParentOf(body);
   }
 
-  /**
-   * Initialize a newly created function declaration.
-   *
-   * @param parameters the parameters associated with the function
-   * @param body the body of the function
-   */
-  FunctionExpression({FormalParameterList parameters, FunctionBody body}) : this.full(parameters, body);
-
   accept(ASTVisitor visitor) => visitor.visitFunctionExpression(this);
 
   Token get beginToken {
@@ -6204,19 +5704,11 @@
    * @param function the expression producing the function being invoked
    * @param argumentList the list of arguments to the method
    */
-  FunctionExpressionInvocation.full(Expression function, ArgumentList argumentList) {
+  FunctionExpressionInvocation(Expression function, ArgumentList argumentList) {
     this._function = becomeParentOf(function);
     this._argumentList = becomeParentOf(argumentList);
   }
 
-  /**
-   * Initialize a newly created function expression invocation.
-   *
-   * @param function the expression producing the function being invoked
-   * @param argumentList the list of arguments to the method
-   */
-  FunctionExpressionInvocation({Expression function, ArgumentList argumentList}) : this.full(function, argumentList);
-
   accept(ASTVisitor visitor) => visitor.visitFunctionExpressionInvocation(this);
 
   /**
@@ -6347,27 +5839,13 @@
    * @param parameters the parameters associated with the function
    * @param semicolon the semicolon terminating the declaration
    */
-  FunctionTypeAlias.full(Comment comment, List<Annotation> metadata, Token keyword, TypeName returnType, SimpleIdentifier name, TypeParameterList typeParameters, FormalParameterList parameters, Token semicolon) : super.full(comment, metadata, keyword, semicolon) {
+  FunctionTypeAlias(Comment comment, List<Annotation> metadata, Token keyword, TypeName returnType, SimpleIdentifier name, TypeParameterList typeParameters, FormalParameterList parameters, Token semicolon) : super(comment, metadata, keyword, semicolon) {
     this._returnType = becomeParentOf(returnType);
     this._name = becomeParentOf(name);
     this._typeParameters = becomeParentOf(typeParameters);
     this._parameters = becomeParentOf(parameters);
   }
 
-  /**
-   * Initialize a newly created function type alias.
-   *
-   * @param comment the documentation comment associated with this type alias
-   * @param metadata the annotations associated with this type alias
-   * @param keyword the token representing the 'typedef' keyword
-   * @param returnType the name of the return type of the function type being defined
-   * @param name the name of the type being declared
-   * @param typeParameters the type parameters for the type
-   * @param parameters the parameters associated with the function
-   * @param semicolon the semicolon terminating the declaration
-   */
-  FunctionTypeAlias({Comment comment, List<Annotation> metadata, Token keyword, TypeName returnType, SimpleIdentifier name, TypeParameterList typeParameters, FormalParameterList parameters, Token semicolon}) : this.full(comment, metadata, keyword, returnType, name, typeParameters, parameters, semicolon);
-
   accept(ASTVisitor visitor) => visitor.visitFunctionTypeAlias(this);
 
   FunctionTypeAliasElement get element => _name != null ? (_name.staticElement as FunctionTypeAliasElement) : null;
@@ -6479,23 +5957,11 @@
    * @param identifier the name of the function-typed parameter
    * @param parameters the parameters of the function-typed parameter
    */
-  FunctionTypedFormalParameter.full(Comment comment, List<Annotation> metadata, TypeName returnType, SimpleIdentifier identifier, FormalParameterList parameters) : super.full(comment, metadata, identifier) {
+  FunctionTypedFormalParameter(Comment comment, List<Annotation> metadata, TypeName returnType, SimpleIdentifier identifier, FormalParameterList parameters) : super(comment, metadata, identifier) {
     this._returnType = becomeParentOf(returnType);
     this._parameters = becomeParentOf(parameters);
   }
 
-  /**
-   * Initialize a newly created formal parameter.
-   *
-   * @param comment the documentation comment associated with this parameter
-   * @param metadata the annotations associated with this parameter
-   * @param returnType the return type of the function, or `null` if the function does not
-   *          have a return type
-   * @param identifier the name of the function-typed parameter
-   * @param parameters the parameters of the function-typed parameter
-   */
-  FunctionTypedFormalParameter({Comment comment, List<Annotation> metadata, TypeName returnType, SimpleIdentifier identifier, FormalParameterList parameters}) : this.full(comment, metadata, returnType, identifier, parameters);
-
   accept(ASTVisitor visitor) => visitor.visitFunctionTypedFormalParameter(this);
 
   Token get beginToken {
@@ -6567,7 +6033,7 @@
   /**
    * The list of names from the library that are hidden by this combinator.
    */
-  NodeList<SimpleIdentifier> hiddenNames;
+  NodeList<SimpleIdentifier> _hiddenNames;
 
   /**
    * Initialize a newly created import show combinator.
@@ -6575,25 +6041,24 @@
    * @param keyword the comma introducing the combinator
    * @param hiddenNames the list of names from the library that are hidden by this combinator
    */
-  HideCombinator.full(Token keyword, List<SimpleIdentifier> hiddenNames) : super.full(keyword) {
-    this.hiddenNames = new NodeList<SimpleIdentifier>(this);
-    this.hiddenNames.addAll(hiddenNames);
+  HideCombinator(Token keyword, List<SimpleIdentifier> hiddenNames) : super(keyword) {
+    this._hiddenNames = new NodeList<SimpleIdentifier>(this);
+    this._hiddenNames.addAll(hiddenNames);
   }
 
-  /**
-   * Initialize a newly created import show combinator.
-   *
-   * @param keyword the comma introducing the combinator
-   * @param hiddenNames the list of names from the library that are hidden by this combinator
-   */
-  HideCombinator({Token keyword, List<SimpleIdentifier> hiddenNames}) : this.full(keyword, hiddenNames);
-
   accept(ASTVisitor visitor) => visitor.visitHideCombinator(this);
 
-  Token get endToken => hiddenNames.endToken;
+  Token get endToken => _hiddenNames.endToken;
+
+  /**
+   * Return the list of names from the library that are hidden by this combinator.
+   *
+   * @return the list of names from the library that are hidden by this combinator
+   */
+  NodeList<SimpleIdentifier> get hiddenNames => _hiddenNames;
 
   void visitChildren(ASTVisitor visitor) {
-    hiddenNames.accept(visitor);
+    _hiddenNames.accept(visitor);
   }
 }
 
@@ -6717,29 +6182,12 @@
    * @param elseKeyword the token representing the 'else' keyword
    * @param elseStatement the statement that is executed if the condition evaluates to `false`
    */
-  IfStatement.full(Token ifKeyword, Token leftParenthesis, Expression condition, Token rightParenthesis, Statement thenStatement, Token elseKeyword, Statement elseStatement) {
-    this.ifKeyword = ifKeyword;
-    this.leftParenthesis = leftParenthesis;
+  IfStatement(this.ifKeyword, this.leftParenthesis, Expression condition, this.rightParenthesis, Statement thenStatement, this.elseKeyword, Statement elseStatement) {
     this._condition = becomeParentOf(condition);
-    this.rightParenthesis = rightParenthesis;
     this._thenStatement = becomeParentOf(thenStatement);
-    this.elseKeyword = elseKeyword;
     this._elseStatement = becomeParentOf(elseStatement);
   }
 
-  /**
-   * Initialize a newly created if statement.
-   *
-   * @param ifKeyword the token representing the 'if' keyword
-   * @param leftParenthesis the left parenthesis
-   * @param condition the condition used to determine which of the statements is executed next
-   * @param rightParenthesis the right parenthesis
-   * @param thenStatement the statement that is executed if the condition evaluates to `true`
-   * @param elseKeyword the token representing the 'else' keyword
-   * @param elseStatement the statement that is executed if the condition evaluates to `false`
-   */
-  IfStatement({Token ifKeyword, Token leftParenthesis, Expression condition, Token rightParenthesis, Statement thenStatement, Token elseKeyword, Statement elseStatement}) : this.full(ifKeyword, leftParenthesis, condition, rightParenthesis, thenStatement, elseKeyword, elseStatement);
-
   accept(ASTVisitor visitor) => visitor.visitIfStatement(this);
 
   Token get beginToken => ifKeyword;
@@ -6830,7 +6278,7 @@
   /**
    * The interfaces that are being implemented.
    */
-  NodeList<TypeName> interfaces;
+  NodeList<TypeName> _interfaces;
 
   /**
    * Initialize a newly created implements clause.
@@ -6838,28 +6286,26 @@
    * @param keyword the token representing the 'implements' keyword
    * @param interfaces the interfaces that are being implemented
    */
-  ImplementsClause.full(Token keyword, List<TypeName> interfaces) {
-    this.interfaces = new NodeList<TypeName>(this);
-    this.keyword = keyword;
-    this.interfaces.addAll(interfaces);
+  ImplementsClause(this.keyword, List<TypeName> interfaces) {
+    this._interfaces = new NodeList<TypeName>(this);
+    this._interfaces.addAll(interfaces);
   }
 
-  /**
-   * Initialize a newly created implements clause.
-   *
-   * @param keyword the token representing the 'implements' keyword
-   * @param interfaces the interfaces that are being implemented
-   */
-  ImplementsClause({Token keyword, List<TypeName> interfaces}) : this.full(keyword, interfaces);
-
   accept(ASTVisitor visitor) => visitor.visitImplementsClause(this);
 
   Token get beginToken => keyword;
 
-  Token get endToken => interfaces.endToken;
+  Token get endToken => _interfaces.endToken;
+
+  /**
+   * Return the list of the interfaces that are being implemented.
+   *
+   * @return the list of the interfaces that are being implemented
+   */
+  NodeList<TypeName> get interfaces => _interfaces;
 
   void visitChildren(ASTVisitor visitor) {
-    interfaces.accept(visitor);
+    _interfaces.accept(visitor);
   }
 }
 
@@ -6977,25 +6423,10 @@
    * @param combinators the combinators used to control how names are imported
    * @param semicolon the semicolon terminating the directive
    */
-  ImportDirective.full(Comment comment, List<Annotation> metadata, Token keyword, StringLiteral libraryUri, Token asToken, SimpleIdentifier prefix, List<Combinator> combinators, Token semicolon) : super.full(comment, metadata, keyword, libraryUri, combinators, semicolon) {
-    this.asToken = asToken;
+  ImportDirective(Comment comment, List<Annotation> metadata, Token keyword, StringLiteral libraryUri, this.asToken, SimpleIdentifier prefix, List<Combinator> combinators, Token semicolon) : super(comment, metadata, keyword, libraryUri, combinators, semicolon) {
     this._prefix = becomeParentOf(prefix);
   }
 
-  /**
-   * Initialize a newly created import directive.
-   *
-   * @param comment the documentation comment associated with this directive
-   * @param metadata the annotations associated with the directive
-   * @param keyword the token representing the 'import' keyword
-   * @param libraryUri the URI of the library being imported
-   * @param asToken the token representing the 'as' token
-   * @param prefix the prefix to be used with the imported names
-   * @param combinators the combinators used to control how names are imported
-   * @param semicolon the semicolon terminating the directive
-   */
-  ImportDirective({Comment comment, List<Annotation> metadata, Token keyword, StringLiteral libraryUri, Token asToken, SimpleIdentifier prefix, List<Combinator> combinators, Token semicolon}) : this.full(comment, metadata, keyword, libraryUri, asToken, prefix, combinators, semicolon);
-
   accept(ASTVisitor visitor) => visitor.visitImportDirective(this);
 
   ImportElement get element => super.element as ImportElement;
@@ -7099,7 +6530,7 @@
    * @param index the expression used to compute the index
    * @param rightBracket the right square bracket
    */
-  IndexExpression.forTarget_full(Expression target, Token leftBracket, Expression index, Token rightBracket) {
+  IndexExpression.forTarget(Expression target, Token leftBracket, Expression index, Token rightBracket) {
     this._target = becomeParentOf(target);
     this._leftBracket = leftBracket;
     this._index = becomeParentOf(index);
@@ -7109,38 +6540,17 @@
   /**
    * Initialize a newly created index expression.
    *
-   * @param target the expression used to compute the object being indexed
-   * @param leftBracket the left square bracket
-   * @param index the expression used to compute the index
-   * @param rightBracket the right square bracket
-   */
-  IndexExpression.forTarget({Expression target, Token leftBracket, Expression index, Token rightBracket}) : this.forTarget_full(target, leftBracket, index, rightBracket);
-
-  /**
-   * Initialize a newly created index expression.
-   *
    * @param period the period ("..") before a cascaded index expression
    * @param leftBracket the left square bracket
    * @param index the expression used to compute the index
    * @param rightBracket the right square bracket
    */
-  IndexExpression.forCascade_full(Token period, Token leftBracket, Expression index, Token rightBracket) {
-    this.period = period;
+  IndexExpression.forCascade(this.period, Token leftBracket, Expression index, Token rightBracket) {
     this._leftBracket = leftBracket;
     this._index = becomeParentOf(index);
     this._rightBracket = rightBracket;
   }
 
-  /**
-   * Initialize a newly created index expression.
-   *
-   * @param period the period ("..") before a cascaded index expression
-   * @param leftBracket the left square bracket
-   * @param index the expression used to compute the index
-   * @param rightBracket the right square bracket
-   */
-  IndexExpression.forCascade({Token period, Token leftBracket, Expression index, Token rightBracket}) : this.forCascade_full(period, leftBracket, index, rightBracket);
-
   accept(ASTVisitor visitor) => visitor.visitIndexExpression(this);
 
   Token get beginToken {
@@ -7440,21 +6850,11 @@
    * @param constructorName the name of the constructor to be invoked
    * @param argumentList the list of arguments to the constructor
    */
-  InstanceCreationExpression.full(Token keyword, ConstructorName constructorName, ArgumentList argumentList) {
-    this.keyword = keyword;
+  InstanceCreationExpression(this.keyword, ConstructorName constructorName, ArgumentList argumentList) {
     this.constructorName = becomeParentOf(constructorName);
     this._argumentList = becomeParentOf(argumentList);
   }
 
-  /**
-   * Initialize a newly created instance creation expression.
-   *
-   * @param keyword the keyword used to indicate how an object should be created
-   * @param constructorName the name of the constructor to be invoked
-   * @param argumentList the list of arguments to the constructor
-   */
-  InstanceCreationExpression({Token keyword, ConstructorName constructorName, ArgumentList argumentList}) : this.full(keyword, constructorName, argumentList);
-
   accept(ASTVisitor visitor) => visitor.visitInstanceCreationExpression(this);
 
   /**
@@ -7527,18 +6927,7 @@
    * @param literal the token representing the literal
    * @param value the value of the literal
    */
-  IntegerLiteral.full(Token literal, int value) {
-    this.literal = literal;
-    this.value = value;
-  }
-
-  /**
-   * Initialize a newly created integer literal.
-   *
-   * @param literal the token representing the literal
-   * @param value the value of the literal
-   */
-  IntegerLiteral({Token literal, int value}) : this.full(literal, value);
+  IntegerLiteral(this.literal, this.value);
 
   accept(ASTVisitor visitor) => visitor.visitIntegerLiteral(this);
 
@@ -7601,21 +6990,10 @@
    * @param expression the expression to be evaluated for the value to be converted into a string
    * @param rightBracket the right curly bracket
    */
-  InterpolationExpression.full(Token leftBracket, Expression expression, Token rightBracket) {
-    this.leftBracket = leftBracket;
+  InterpolationExpression(this.leftBracket, Expression expression, this.rightBracket) {
     this._expression = becomeParentOf(expression);
-    this.rightBracket = rightBracket;
   }
 
-  /**
-   * Initialize a newly created interpolation expression.
-   *
-   * @param leftBracket the left curly bracket
-   * @param expression the expression to be evaluated for the value to be converted into a string
-   * @param rightBracket the right curly bracket
-   */
-  InterpolationExpression({Token leftBracket, Expression expression, Token rightBracket}) : this.full(leftBracket, expression, rightBracket);
-
   accept(ASTVisitor visitor) => visitor.visitInterpolationExpression(this);
 
   Token get beginToken => leftBracket;
@@ -7677,19 +7055,11 @@
    * @param the characters that will be added to the string
    * @param value the value of the literal
    */
-  InterpolationString.full(Token contents, String value) {
+  InterpolationString(Token contents, String value) {
     this._contents = contents;
     this._value = value;
   }
 
-  /**
-   * Initialize a newly created string of characters that are part of a string interpolation.
-   *
-   * @param the characters that will be added to the string
-   * @param value the value of the literal
-   */
-  InterpolationString({Token contents, String value}) : this.full(contents, value);
-
   accept(ASTVisitor visitor) => visitor.visitInterpolationString(this);
 
   Token get beginToken => _contents;
@@ -7771,23 +7141,11 @@
    * @param notOperator the not operator, or `null` if the sense of the test is not negated
    * @param type the name of the type being tested for
    */
-  IsExpression.full(Expression expression, Token isOperator, Token notOperator, TypeName type) {
+  IsExpression(Expression expression, this.isOperator, this.notOperator, TypeName type) {
     this._expression = becomeParentOf(expression);
-    this.isOperator = isOperator;
-    this.notOperator = notOperator;
     this._type = becomeParentOf(type);
   }
 
-  /**
-   * Initialize a newly created is expression.
-   *
-   * @param expression the expression used to compute the value whose type is being tested
-   * @param isOperator the is operator
-   * @param notOperator the not operator, or `null` if the sense of the test is not negated
-   * @param type the name of the type being tested for
-   */
-  IsExpression({Expression expression, Token isOperator, Token notOperator, TypeName type}) : this.full(expression, isOperator, notOperator, type);
-
   accept(ASTVisitor visitor) => visitor.visitIsExpression(this);
 
   Token get beginToken => _expression.beginToken;
@@ -7862,19 +7220,10 @@
    * @param label the label being applied
    * @param colon the colon that separates the label from whatever follows
    */
-  Label.full(SimpleIdentifier label, Token colon) {
+  Label(SimpleIdentifier label, this.colon) {
     this._label = becomeParentOf(label);
-    this.colon = colon;
   }
 
-  /**
-   * Initialize a newly created label.
-   *
-   * @param label the label being applied
-   * @param colon the colon that separates the label from whatever follows
-   */
-  Label({SimpleIdentifier label, Token colon}) : this.full(label, colon);
-
   accept(ASTVisitor visitor) => visitor.visitLabel(this);
 
   Token get beginToken => _label.beginToken;
@@ -7917,7 +7266,7 @@
   /**
    * The labels being associated with the statement.
    */
-  NodeList<Label> labels;
+  NodeList<Label> _labels;
 
   /**
    * The statement with which the labels are being associated.
@@ -7930,25 +7279,17 @@
    * @param labels the labels being associated with the statement
    * @param statement the statement with which the labels are being associated
    */
-  LabeledStatement.full(List<Label> labels, Statement statement) {
-    this.labels = new NodeList<Label>(this);
-    this.labels.addAll(labels);
+  LabeledStatement(List<Label> labels, Statement statement) {
+    this._labels = new NodeList<Label>(this);
+    this._labels.addAll(labels);
     this._statement = becomeParentOf(statement);
   }
 
-  /**
-   * Initialize a newly created labeled statement.
-   *
-   * @param labels the labels being associated with the statement
-   * @param statement the statement with which the labels are being associated
-   */
-  LabeledStatement({List<Label> labels, Statement statement}) : this.full(labels, statement);
-
   accept(ASTVisitor visitor) => visitor.visitLabeledStatement(this);
 
   Token get beginToken {
-    if (!labels.isEmpty) {
-      return labels.beginToken;
+    if (!_labels.isEmpty) {
+      return _labels.beginToken;
     }
     return _statement.beginToken;
   }
@@ -7956,6 +7297,13 @@
   Token get endToken => _statement.endToken;
 
   /**
+   * Return the labels being associated with the statement.
+   *
+   * @return the labels being associated with the statement
+   */
+  NodeList<Label> get labels => _labels;
+
+  /**
    * Return the statement with which the labels are being associated.
    *
    * @return the statement with which the labels are being associated
@@ -7972,7 +7320,7 @@
   }
 
   void visitChildren(ASTVisitor visitor) {
-    labels.accept(visitor);
+    _labels.accept(visitor);
     safelyVisitChild(_statement, visitor);
   }
 }
@@ -8012,23 +7360,10 @@
    * @param name the name of the library being defined
    * @param semicolon the semicolon terminating the directive
    */
-  LibraryDirective.full(Comment comment, List<Annotation> metadata, Token libraryToken, LibraryIdentifier name, Token semicolon) : super.full(comment, metadata) {
-    this.libraryToken = libraryToken;
+  LibraryDirective(Comment comment, List<Annotation> metadata, this.libraryToken, LibraryIdentifier name, this.semicolon) : super(comment, metadata) {
     this._name = becomeParentOf(name);
-    this.semicolon = semicolon;
   }
 
-  /**
-   * Initialize a newly created library directive.
-   *
-   * @param comment the documentation comment associated with this directive
-   * @param metadata the annotations associated with the directive
-   * @param libraryToken the token representing the 'library' token
-   * @param name the name of the library being defined
-   * @param semicolon the semicolon terminating the directive
-   */
-  LibraryDirective({Comment comment, List<Annotation> metadata, Token libraryToken, LibraryIdentifier name, Token semicolon}) : this.full(comment, metadata, libraryToken, name, semicolon);
-
   accept(ASTVisitor visitor) => visitor.visitLibraryDirective(this);
 
   Token get endToken => semicolon;
@@ -8073,37 +7408,37 @@
   /**
    * The components of the identifier.
    */
-  NodeList<SimpleIdentifier> components;
+  NodeList<SimpleIdentifier> _components;
 
   /**
    * Initialize a newly created prefixed identifier.
    *
    * @param components the components of the identifier
    */
-  LibraryIdentifier.full(List<SimpleIdentifier> components) {
-    this.components = new NodeList<SimpleIdentifier>(this);
-    this.components.addAll(components);
+  LibraryIdentifier(List<SimpleIdentifier> components) {
+    this._components = new NodeList<SimpleIdentifier>(this);
+    this._components.addAll(components);
   }
 
-  /**
-   * Initialize a newly created prefixed identifier.
-   *
-   * @param components the components of the identifier
-   */
-  LibraryIdentifier({List<SimpleIdentifier> components}) : this.full(components);
-
   accept(ASTVisitor visitor) => visitor.visitLibraryIdentifier(this);
 
-  Token get beginToken => components.beginToken;
+  Token get beginToken => _components.beginToken;
 
   Element get bestElement => staticElement;
 
-  Token get endToken => components.endToken;
+  /**
+   * Return the components of the identifier.
+   *
+   * @return the components of the identifier
+   */
+  NodeList<SimpleIdentifier> get components => _components;
+
+  Token get endToken => _components.endToken;
 
   String get name {
     JavaStringBuilder builder = new JavaStringBuilder();
     bool needsPeriod = false;
-    for (SimpleIdentifier identifier in components) {
+    for (SimpleIdentifier identifier in _components) {
       if (needsPeriod) {
         builder.append(".");
       } else {
@@ -8121,7 +7456,7 @@
   Element get staticElement => null;
 
   void visitChildren(ASTVisitor visitor) {
-    components.accept(visitor);
+    _components.accept(visitor);
   }
 }
 
@@ -8144,7 +7479,7 @@
   /**
    * The expressions used to compute the elements of the list.
    */
-  NodeList<Expression> elements;
+  NodeList<Expression> _elements;
 
   /**
    * The right square bracket.
@@ -8161,25 +7496,13 @@
    * @param elements the expressions used to compute the elements of the list
    * @param rightBracket the right square bracket
    */
-  ListLiteral.full(Token constKeyword, TypeArgumentList typeArguments, Token leftBracket, List<Expression> elements, Token rightBracket) : super.full(constKeyword, typeArguments) {
-    this.elements = new NodeList<Expression>(this);
+  ListLiteral(Token constKeyword, TypeArgumentList typeArguments, Token leftBracket, List<Expression> elements, Token rightBracket) : super(constKeyword, typeArguments) {
+    this._elements = new NodeList<Expression>(this);
     this._leftBracket = leftBracket;
-    this.elements.addAll(elements);
+    this._elements.addAll(elements);
     this._rightBracket = rightBracket;
   }
 
-  /**
-   * Initialize a newly created list literal.
-   *
-   * @param constKeyword the token representing the 'const' keyword
-   * @param typeArguments the type argument associated with this literal, or `null` if no type
-   *          arguments were declared
-   * @param leftBracket the left square bracket
-   * @param elements the expressions used to compute the elements of the list
-   * @param rightBracket the right square bracket
-   */
-  ListLiteral({Token constKeyword, TypeArgumentList typeArguments, Token leftBracket, List<Expression> elements, Token rightBracket}) : this.full(constKeyword, typeArguments, leftBracket, elements, rightBracket);
-
   accept(ASTVisitor visitor) => visitor.visitListLiteral(this);
 
   Token get beginToken {
@@ -8194,6 +7517,13 @@
     return _leftBracket;
   }
 
+  /**
+   * Return the expressions used to compute the elements of the list.
+   *
+   * @return the expressions used to compute the elements of the list
+   */
+  NodeList<Expression> get elements => _elements;
+
   Token get endToken => _rightBracket;
 
   /**
@@ -8230,7 +7560,7 @@
 
   void visitChildren(ASTVisitor visitor) {
     super.visitChildren(visitor);
-    elements.accept(visitor);
+    _elements.accept(visitor);
   }
 }
 
@@ -8274,7 +7604,7 @@
   /**
    * The entries in the map.
    */
-  NodeList<MapLiteralEntry> entries;
+  NodeList<MapLiteralEntry> _entries;
 
   /**
    * The right curly bracket.
@@ -8291,25 +7621,13 @@
    * @param entries the entries in the map
    * @param rightBracket the right curly bracket
    */
-  MapLiteral.full(Token constKeyword, TypeArgumentList typeArguments, Token leftBracket, List<MapLiteralEntry> entries, Token rightBracket) : super.full(constKeyword, typeArguments) {
-    this.entries = new NodeList<MapLiteralEntry>(this);
+  MapLiteral(Token constKeyword, TypeArgumentList typeArguments, Token leftBracket, List<MapLiteralEntry> entries, Token rightBracket) : super(constKeyword, typeArguments) {
+    this._entries = new NodeList<MapLiteralEntry>(this);
     this._leftBracket = leftBracket;
-    this.entries.addAll(entries);
+    this._entries.addAll(entries);
     this._rightBracket = rightBracket;
   }
 
-  /**
-   * Initialize a newly created map literal.
-   *
-   * @param constKeyword the token representing the 'const' keyword
-   * @param typeArguments the type argument associated with this literal, or `null` if no type
-   *          arguments were declared
-   * @param leftBracket the left curly bracket
-   * @param entries the entries in the map
-   * @param rightBracket the right curly bracket
-   */
-  MapLiteral({Token constKeyword, TypeArgumentList typeArguments, Token leftBracket, List<MapLiteralEntry> entries, Token rightBracket}) : this.full(constKeyword, typeArguments, leftBracket, entries, rightBracket);
-
   accept(ASTVisitor visitor) => visitor.visitMapLiteral(this);
 
   Token get beginToken {
@@ -8327,6 +7645,13 @@
   Token get endToken => _rightBracket;
 
   /**
+   * Return the entries in the map.
+   *
+   * @return the entries in the map
+   */
+  NodeList<MapLiteralEntry> get entries => _entries;
+
+  /**
    * Return the left curly bracket.
    *
    * @return the left curly bracket
@@ -8360,7 +7685,7 @@
 
   void visitChildren(ASTVisitor visitor) {
     super.visitChildren(visitor);
-    entries.accept(visitor);
+    _entries.accept(visitor);
   }
 }
 
@@ -8398,21 +7723,11 @@
    * @param separator the colon that separates the key from the value
    * @param value the expression computing the value that will be associated with the key
    */
-  MapLiteralEntry.full(Expression key, Token separator, Expression value) {
+  MapLiteralEntry(Expression key, this.separator, Expression value) {
     this._key = becomeParentOf(key);
-    this.separator = separator;
     this._value = becomeParentOf(value);
   }
 
-  /**
-   * Initialize a newly created map literal entry.
-   *
-   * @param key the expression computing the key with which the value will be associated
-   * @param separator the colon that separates the key from the value
-   * @param value the expression computing the value that will be associated with the key
-   */
-  MapLiteralEntry({Expression key, Token separator, Expression value}) : this.full(key, separator, value);
-
   accept(ASTVisitor visitor) => visitor.visitMapLiteralEntry(this);
 
   Token get beginToken => _key.beginToken;
@@ -8536,34 +7851,13 @@
    *          declares a getter
    * @param body the body of the method
    */
-  MethodDeclaration.full(Comment comment, List<Annotation> metadata, Token externalKeyword, Token modifierKeyword, TypeName returnType, Token propertyKeyword, Token operatorKeyword, SimpleIdentifier name, FormalParameterList parameters, FunctionBody body) : super.full(comment, metadata) {
-    this.externalKeyword = externalKeyword;
-    this.modifierKeyword = modifierKeyword;
+  MethodDeclaration(Comment comment, List<Annotation> metadata, this.externalKeyword, this.modifierKeyword, TypeName returnType, this.propertyKeyword, this.operatorKeyword, SimpleIdentifier name, FormalParameterList parameters, FunctionBody body) : super(comment, metadata) {
     this._returnType = becomeParentOf(returnType);
-    this.propertyKeyword = propertyKeyword;
-    this.operatorKeyword = operatorKeyword;
     this._name = becomeParentOf(name);
     this._parameters = becomeParentOf(parameters);
     this._body = becomeParentOf(body);
   }
 
-  /**
-   * Initialize a newly created method declaration.
-   *
-   * @param externalKeyword the token for the 'external' keyword
-   * @param comment the documentation comment associated with this method
-   * @param metadata the annotations associated with this method
-   * @param modifierKeyword the token representing the 'abstract' or 'static' keyword
-   * @param returnType the return type of the method
-   * @param propertyKeyword the token representing the 'get' or 'set' keyword
-   * @param operatorKeyword the token representing the 'operator' keyword
-   * @param name the name of the method
-   * @param parameters the parameters associated with the method, or `null` if this method
-   *          declares a getter
-   * @param body the body of the method
-   */
-  MethodDeclaration({Comment comment, List<Annotation> metadata, Token externalKeyword, Token modifierKeyword, TypeName returnType, Token propertyKeyword, Token operatorKeyword, SimpleIdentifier name, FormalParameterList parameters, FunctionBody body}) : this.full(comment, metadata, externalKeyword, modifierKeyword, returnType, propertyKeyword, operatorKeyword, name, parameters, body);
-
   accept(ASTVisitor visitor) => visitor.visitMethodDeclaration(this);
 
   /**
@@ -8745,23 +8039,12 @@
    * @param methodName the name of the method being invoked
    * @param argumentList the list of arguments to the method
    */
-  MethodInvocation.full(Expression target, Token period, SimpleIdentifier methodName, ArgumentList argumentList) {
+  MethodInvocation(Expression target, this.period, SimpleIdentifier methodName, ArgumentList argumentList) {
     this._target = becomeParentOf(target);
-    this.period = period;
     this._methodName = becomeParentOf(methodName);
     this._argumentList = becomeParentOf(argumentList);
   }
 
-  /**
-   * Initialize a newly created method invocation.
-   *
-   * @param target the expression producing the object on which the method is defined
-   * @param period the period that separates the target from the method name
-   * @param methodName the name of the method being invoked
-   * @param argumentList the list of arguments to the method
-   */
-  MethodInvocation({Expression target, Token period, SimpleIdentifier methodName, ArgumentList argumentList}) : this.full(target, period, methodName, argumentList);
-
   accept(ASTVisitor visitor) => visitor.visitMethodInvocation(this);
 
   /**
@@ -8895,19 +8178,11 @@
    * @param name the name associated with the expression
    * @param expression the expression with which the name is associated
    */
-  NamedExpression.full(Label name, Expression expression) {
+  NamedExpression(Label name, Expression expression) {
     this._name = becomeParentOf(name);
     this._expression = becomeParentOf(expression);
   }
 
-  /**
-   * Initialize a newly created named expression.
-   *
-   * @param name the name associated with the expression
-   * @param expression the expression with which the name is associated
-   */
-  NamedExpression({Label name, Expression expression}) : this.full(name, expression);
-
   accept(ASTVisitor visitor) => visitor.visitNamedExpression(this);
 
   Token get beginToken => _name.beginToken;
@@ -8985,12 +8260,12 @@
   /**
    * The token representing the 'import' or 'export' keyword.
    */
-  Token _keyword;
+  Token keyword;
 
   /**
    * The combinators used to control which names are imported or exported.
    */
-  NodeList<Combinator> combinators;
+  NodeList<Combinator> _combinators;
 
   /**
    * The semicolon terminating the directive.
@@ -9007,41 +8282,23 @@
    * @param combinators the combinators used to control which names are imported or exported
    * @param semicolon the semicolon terminating the directive
    */
-  NamespaceDirective.full(Comment comment, List<Annotation> metadata, Token keyword, StringLiteral libraryUri, List<Combinator> combinators, Token semicolon) : super.full(comment, metadata, libraryUri) {
-    this.combinators = new NodeList<Combinator>(this);
-    this._keyword = keyword;
-    this.combinators.addAll(combinators);
-    this.semicolon = semicolon;
+  NamespaceDirective(Comment comment, List<Annotation> metadata, this.keyword, StringLiteral libraryUri, List<Combinator> combinators, this.semicolon) : super(comment, metadata, libraryUri) {
+    this._combinators = new NodeList<Combinator>(this);
+    this._combinators.addAll(combinators);
   }
 
   /**
-   * Initialize a newly created namespace directive.
+   * Return the combinators used to control how names are imported or exported.
    *
-   * @param comment the documentation comment associated with this directive
-   * @param metadata the annotations associated with the directive
-   * @param keyword the token representing the 'import' or 'export' keyword
-   * @param libraryUri the URI of the library being imported or exported
-   * @param combinators the combinators used to control which names are imported or exported
-   * @param semicolon the semicolon terminating the directive
+   * @return the combinators used to control how names are imported or exported
    */
-  NamespaceDirective({Comment comment, List<Annotation> metadata, Token keyword, StringLiteral libraryUri, List<Combinator> combinators, Token semicolon}) : this.full(comment, metadata, keyword, libraryUri, combinators, semicolon);
+  NodeList<Combinator> get combinators => _combinators;
 
   Token get endToken => semicolon;
 
-  Token get keyword => _keyword;
-
   LibraryElement get uriElement;
 
-  /**
-   * Set the token representing the 'import' or 'export' keyword to the given token.
-   *
-   * @param exportToken the token representing the 'import' or 'export' keyword
-   */
-  void set keyword(Token exportToken) {
-    this._keyword = exportToken;
-  }
-
-  Token get firstTokenAfterCommentAndMetadata => _keyword;
+  Token get firstTokenAfterCommentAndMetadata => keyword;
 }
 
 /**
@@ -9072,18 +8329,7 @@
    * @param keyword the token representing the 'native' keyword
    * @param name the name of the native object that implements the class.
    */
-  NativeClause.full(Token keyword, StringLiteral name) {
-    this.keyword = keyword;
-    this.name = name;
-  }
-
-  /**
-   * Initialize a newly created native clause.
-   *
-   * @param keyword the token representing the 'native' keyword
-   * @param name the name of the native object that implements the class.
-   */
-  NativeClause({Token keyword, StringLiteral name}) : this.full(keyword, name);
+  NativeClause(this.keyword, this.name);
 
   accept(ASTVisitor visitor) => visitor.visitNativeClause(this);
 
@@ -9111,17 +8357,17 @@
   /**
    * The token representing 'native' that marks the start of the function body.
    */
-  Token nativeToken;
+  final Token nativeToken;
 
   /**
    * The string literal, after the 'native' token.
    */
-  StringLiteral stringLiteral;
+  StringLiteral _stringLiteral;
 
   /**
    * The token representing the semicolon that marks the end of the function body.
    */
-  Token semicolon;
+  final Token semicolon;
 
   /**
    * Initialize a newly created function body consisting of the 'native' token, a string literal,
@@ -9131,30 +8377,25 @@
    * @param stringLiteral the string literal
    * @param semicolon the token representing the semicolon that marks the end of the function body
    */
-  NativeFunctionBody.full(Token nativeToken, StringLiteral stringLiteral, Token semicolon) {
-    this.nativeToken = nativeToken;
-    this.stringLiteral = becomeParentOf(stringLiteral);
-    this.semicolon = semicolon;
+  NativeFunctionBody(this.nativeToken, StringLiteral stringLiteral, this.semicolon) {
+    this._stringLiteral = becomeParentOf(stringLiteral);
   }
 
-  /**
-   * Initialize a newly created function body consisting of the 'native' token, a string literal,
-   * and a semicolon.
-   *
-   * @param nativeToken the token representing 'native' that marks the start of the function body
-   * @param stringLiteral the string literal
-   * @param semicolon the token representing the semicolon that marks the end of the function body
-   */
-  NativeFunctionBody({Token nativeToken, StringLiteral stringLiteral, Token semicolon}) : this.full(nativeToken, stringLiteral, semicolon);
-
   accept(ASTVisitor visitor) => visitor.visitNativeFunctionBody(this);
 
   Token get beginToken => nativeToken;
 
   Token get endToken => semicolon;
 
+  /**
+   * Return the string literal representing the string after the 'native' token.
+   *
+   * @return the string literal representing the string after the 'native' token
+   */
+  StringLiteral get stringLiteral => _stringLiteral;
+
   void visitChildren(ASTVisitor visitor) {
-    safelyVisitChild(stringLiteral, visitor);
+    safelyVisitChild(_stringLiteral, visitor);
   }
 }
 
@@ -9181,7 +8422,7 @@
   /**
    * The annotations associated with this parameter.
    */
-  NodeList<Annotation> metadata;
+  NodeList<Annotation> _metadata;
 
   /**
    * The name of the parameter being declared.
@@ -9195,23 +8436,14 @@
    * @param metadata the annotations associated with this parameter
    * @param identifier the name of the parameter being declared
    */
-  NormalFormalParameter.full(Comment comment, List<Annotation> metadata, SimpleIdentifier identifier) {
-    this.metadata = new NodeList<Annotation>(this);
+  NormalFormalParameter(Comment comment, List<Annotation> metadata, SimpleIdentifier identifier) {
+    this._metadata = new NodeList<Annotation>(this);
     this._comment = becomeParentOf(comment);
-    this.metadata.addAll(metadata);
+    this._metadata.addAll(metadata);
     this._identifier = becomeParentOf(identifier);
   }
 
   /**
-   * Initialize a newly created formal parameter.
-   *
-   * @param comment the documentation comment associated with this parameter
-   * @param metadata the annotations associated with this parameter
-   * @param identifier the name of the parameter being declared
-   */
-  NormalFormalParameter({Comment comment, List<Annotation> metadata, SimpleIdentifier identifier}) : this.full(comment, metadata, identifier);
-
-  /**
    * Return the documentation comment associated with this parameter, or `null` if this
    * parameter does not have a documentation comment associated with it.
    *
@@ -9230,6 +8462,13 @@
   }
 
   /**
+   * Return the annotations associated with this parameter.
+   *
+   * @return the annotations associated with this parameter
+   */
+  NodeList<Annotation> get metadata => _metadata;
+
+  /**
    * Set the documentation comment associated with this parameter to the given comment
    *
    * @param comment the documentation comment to be associated with this parameter
@@ -9250,7 +8489,7 @@
   void visitChildren(ASTVisitor visitor) {
     if (commentIsBeforeAnnotations()) {
       safelyVisitChild(_comment, visitor);
-      metadata.accept(visitor);
+      _metadata.accept(visitor);
     } else {
       for (ASTNode child in sortedCommentAndAnnotations) {
         child.accept(visitor);
@@ -9264,10 +8503,10 @@
    * @return `true` if the comment is lexically before any annotations
    */
   bool commentIsBeforeAnnotations() {
-    if (_comment == null || metadata.isEmpty) {
+    if (_comment == null || _metadata.isEmpty) {
       return true;
     }
-    Annotation firstAnnotation = metadata[0];
+    Annotation firstAnnotation = _metadata[0];
     return _comment.offset < firstAnnotation.offset;
   }
 
@@ -9281,7 +8520,7 @@
   List<ASTNode> get sortedCommentAndAnnotations {
     List<ASTNode> childList = new List<ASTNode>();
     childList.add(_comment);
-    childList.addAll(metadata);
+    childList.addAll(_metadata);
     List<ASTNode> children = new List.from(childList);
     children.sort(ASTNode.LEXICAL_ORDER);
     return children;
@@ -9309,17 +8548,10 @@
    *
    * @param token the token representing the literal
    */
-  NullLiteral.full(Token token) {
+  NullLiteral(Token token) {
     this.literal = token;
   }
 
-  /**
-   * Initialize a newly created null literal.
-   *
-   * @param token the token representing the literal
-   */
-  NullLiteral({Token token}) : this.full(token);
-
   accept(ASTVisitor visitor) => visitor.visitNullLiteral(this);
 
   Token get beginToken => literal;
@@ -9363,21 +8595,12 @@
    * @param expression the expression within the parentheses
    * @param rightParenthesis the right parenthesis
    */
-  ParenthesizedExpression.full(Token leftParenthesis, Expression expression, Token rightParenthesis) {
+  ParenthesizedExpression(Token leftParenthesis, Expression expression, Token rightParenthesis) {
     this._leftParenthesis = leftParenthesis;
     this._expression = becomeParentOf(expression);
     this._rightParenthesis = rightParenthesis;
   }
 
-  /**
-   * Initialize a newly created parenthesized expression.
-   *
-   * @param leftParenthesis the left parenthesis
-   * @param expression the expression within the parentheses
-   * @param rightParenthesis the right parenthesis
-   */
-  ParenthesizedExpression({Token leftParenthesis, Expression expression, Token rightParenthesis}) : this.full(leftParenthesis, expression, rightParenthesis);
-
   accept(ASTVisitor visitor) => visitor.visitParenthesizedExpression(this);
 
   Token get beginToken => _leftParenthesis;
@@ -9469,21 +8692,7 @@
    * @param partUri the URI of the part being included
    * @param semicolon the semicolon terminating the directive
    */
-  PartDirective.full(Comment comment, List<Annotation> metadata, Token partToken, StringLiteral partUri, Token semicolon) : super.full(comment, metadata, partUri) {
-    this.partToken = partToken;
-    this.semicolon = semicolon;
-  }
-
-  /**
-   * Initialize a newly created part directive.
-   *
-   * @param comment the documentation comment associated with this directive
-   * @param metadata the annotations associated with the directive
-   * @param partToken the token representing the 'part' token
-   * @param partUri the URI of the part being included
-   * @param semicolon the semicolon terminating the directive
-   */
-  PartDirective({Comment comment, List<Annotation> metadata, Token partToken, StringLiteral partUri, Token semicolon}) : this.full(comment, metadata, partToken, partUri, semicolon);
+  PartDirective(Comment comment, List<Annotation> metadata, this.partToken, StringLiteral partUri, this.semicolon) : super(comment, metadata, partUri);
 
   accept(ASTVisitor visitor) => visitor.visitPartDirective(this);
 
@@ -9537,25 +8746,10 @@
    * @param libraryName the name of the library that the containing compilation unit is part of
    * @param semicolon the semicolon terminating the directive
    */
-  PartOfDirective.full(Comment comment, List<Annotation> metadata, Token partToken, Token ofToken, LibraryIdentifier libraryName, Token semicolon) : super.full(comment, metadata) {
-    this.partToken = partToken;
-    this.ofToken = ofToken;
+  PartOfDirective(Comment comment, List<Annotation> metadata, this.partToken, this.ofToken, LibraryIdentifier libraryName, this.semicolon) : super(comment, metadata) {
     this._libraryName = becomeParentOf(libraryName);
-    this.semicolon = semicolon;
   }
 
-  /**
-   * Initialize a newly created part-of directive.
-   *
-   * @param comment the documentation comment associated with this directive
-   * @param metadata the annotations associated with the directive
-   * @param partToken the token representing the 'part' token
-   * @param ofToken the token representing the 'of' token
-   * @param libraryName the name of the library that the containing compilation unit is part of
-   * @param semicolon the semicolon terminating the directive
-   */
-  PartOfDirective({Comment comment, List<Annotation> metadata, Token partToken, Token ofToken, LibraryIdentifier libraryName, Token semicolon}) : this.full(comment, metadata, partToken, ofToken, libraryName, semicolon);
-
   accept(ASTVisitor visitor) => visitor.visitPartOfDirective(this);
 
   Token get endToken => semicolon;
@@ -9627,19 +8821,10 @@
    * @param operand the expression computing the operand for the operator
    * @param operator the postfix operator being applied to the operand
    */
-  PostfixExpression.full(Expression operand, Token operator) {
+  PostfixExpression(Expression operand, this.operator) {
     this._operand = becomeParentOf(operand);
-    this.operator = operator;
   }
 
-  /**
-   * Initialize a newly created postfix expression.
-   *
-   * @param operand the expression computing the operand for the operator
-   * @param operator the postfix operator being applied to the operand
-   */
-  PostfixExpression({Expression operand, Token operator}) : this.full(operand, operator);
-
   accept(ASTVisitor visitor) => visitor.visitPostfixExpression(this);
 
   Token get beginToken => _operand.beginToken;
@@ -9808,19 +8993,10 @@
    * @param operator the prefix operator being applied to the operand
    * @param operand the expression computing the operand for the operator
    */
-  PrefixExpression.full(Token operator, Expression operand) {
-    this.operator = operator;
+  PrefixExpression(this.operator, Expression operand) {
     this._operand = becomeParentOf(operand);
   }
 
-  /**
-   * Initialize a newly created prefix expression.
-   *
-   * @param operator the prefix operator being applied to the operand
-   * @param operand the expression computing the operand for the operator
-   */
-  PrefixExpression({Token operator, Expression operand}) : this.full(operator, operand);
-
   accept(ASTVisitor visitor) => visitor.visitPrefixExpression(this);
 
   Token get beginToken => operator;
@@ -9983,21 +9159,11 @@
    * @param period the period used to separate the prefix from the identifier
    * @param identifier the prefix associated with the library in which the identifier is defined
    */
-  PrefixedIdentifier.full(SimpleIdentifier prefix, Token period, SimpleIdentifier identifier) {
+  PrefixedIdentifier(SimpleIdentifier prefix, this.period, SimpleIdentifier identifier) {
     this._prefix = becomeParentOf(prefix);
-    this.period = period;
     this._identifier = becomeParentOf(identifier);
   }
 
-  /**
-   * Initialize a newly created prefixed identifier.
-   *
-   * @param prefix the identifier being prefixed
-   * @param period the period used to separate the prefix from the identifier
-   * @param identifier the prefix associated with the library in which the identifier is defined
-   */
-  PrefixedIdentifier({SimpleIdentifier prefix, Token period, SimpleIdentifier identifier}) : this.full(prefix, period, identifier);
-
   accept(ASTVisitor visitor) => visitor.visitPrefixedIdentifier(this);
 
   Token get beginToken => _prefix.beginToken;
@@ -10105,21 +9271,11 @@
    * @param operator the property access operator
    * @param propertyName the name of the property being accessed
    */
-  PropertyAccess.full(Expression target, Token operator, SimpleIdentifier propertyName) {
+  PropertyAccess(Expression target, this.operator, SimpleIdentifier propertyName) {
     this._target = becomeParentOf(target);
-    this.operator = operator;
     this._propertyName = becomeParentOf(propertyName);
   }
 
-  /**
-   * Initialize a newly created property access expression.
-   *
-   * @param target the expression computing the object defining the property being accessed
-   * @param operator the property access operator
-   * @param propertyName the name of the property being accessed
-   */
-  PropertyAccess({Expression target, Token operator, SimpleIdentifier propertyName}) : this.full(target, operator, propertyName);
-
   accept(ASTVisitor visitor) => visitor.visitPropertyAccess(this);
 
   Token get beginToken {
@@ -10257,24 +9413,11 @@
    * @param constructorName the name of the constructor that is being invoked
    * @param argumentList the list of arguments to the constructor
    */
-  RedirectingConstructorInvocation.full(Token keyword, Token period, SimpleIdentifier constructorName, ArgumentList argumentList) {
-    this.keyword = keyword;
-    this.period = period;
+  RedirectingConstructorInvocation(this.keyword, this.period, SimpleIdentifier constructorName, ArgumentList argumentList) {
     this._constructorName = becomeParentOf(constructorName);
     this._argumentList = becomeParentOf(argumentList);
   }
 
-  /**
-   * Initialize a newly created redirecting invocation to invoke the constructor with the given name
-   * with the given arguments.
-   *
-   * @param keyword the token for the 'this' keyword
-   * @param period the token for the period before the name of the constructor that is being invoked
-   * @param constructorName the name of the constructor that is being invoked
-   * @param argumentList the list of arguments to the constructor
-   */
-  RedirectingConstructorInvocation({Token keyword, Token period, SimpleIdentifier constructorName, ArgumentList argumentList}) : this.full(keyword, period, constructorName, argumentList);
-
   accept(ASTVisitor visitor) => visitor.visitRedirectingConstructorInvocation(this);
 
   /**
@@ -10341,16 +9484,7 @@
    *
    * @param keyword the token representing the 'rethrow' keyword
    */
-  RethrowExpression.full(Token keyword) {
-    this.keyword = keyword;
-  }
-
-  /**
-   * Initialize a newly created rethrow expression.
-   *
-   * @param keyword the token representing the 'rethrow' keyword
-   */
-  RethrowExpression({Token keyword}) : this.full(keyword);
+  RethrowExpression(this.keyword);
 
   accept(ASTVisitor visitor) => visitor.visitRethrowExpression(this);
 
@@ -10398,21 +9532,10 @@
    * @param expression the expression computing the value to be returned
    * @param semicolon the semicolon terminating the statement
    */
-  ReturnStatement.full(Token keyword, Expression expression, Token semicolon) {
-    this.keyword = keyword;
+  ReturnStatement(this.keyword, Expression expression, this.semicolon) {
     this._expression = becomeParentOf(expression);
-    this.semicolon = semicolon;
   }
 
-  /**
-   * Initialize a newly created return statement.
-   *
-   * @param keyword the token representing the 'return' keyword
-   * @param expression the expression computing the value to be returned
-   * @param semicolon the semicolon terminating the statement
-   */
-  ReturnStatement({Token keyword, Expression expression, Token semicolon}) : this.full(keyword, expression, semicolon);
-
   accept(ASTVisitor visitor) => visitor.visitReturnStatement(this);
 
   Token get beginToken => keyword;
@@ -10463,16 +9586,7 @@
    *
    * @param scriptTag the token representing this script tag
    */
-  ScriptTag.full(Token scriptTag) {
-    this.scriptTag = scriptTag;
-  }
-
-  /**
-   * Initialize a newly created script tag.
-   *
-   * @param scriptTag the token representing this script tag
-   */
-  ScriptTag({Token scriptTag}) : this.full(scriptTag);
+  ScriptTag(this.scriptTag);
 
   accept(ASTVisitor visitor) => visitor.visitScriptTag(this);
 
@@ -10499,7 +9613,7 @@
   /**
    * The list of names from the library that are made visible by this combinator.
    */
-  NodeList<SimpleIdentifier> shownNames;
+  NodeList<SimpleIdentifier> _shownNames;
 
   /**
    * Initialize a newly created import show combinator.
@@ -10507,25 +9621,24 @@
    * @param keyword the comma introducing the combinator
    * @param shownNames the list of names from the library that are made visible by this combinator
    */
-  ShowCombinator.full(Token keyword, List<SimpleIdentifier> shownNames) : super.full(keyword) {
-    this.shownNames = new NodeList<SimpleIdentifier>(this);
-    this.shownNames.addAll(shownNames);
+  ShowCombinator(Token keyword, List<SimpleIdentifier> shownNames) : super(keyword) {
+    this._shownNames = new NodeList<SimpleIdentifier>(this);
+    this._shownNames.addAll(shownNames);
   }
 
-  /**
-   * Initialize a newly created import show combinator.
-   *
-   * @param keyword the comma introducing the combinator
-   * @param shownNames the list of names from the library that are made visible by this combinator
-   */
-  ShowCombinator({Token keyword, List<SimpleIdentifier> shownNames}) : this.full(keyword, shownNames);
-
   accept(ASTVisitor visitor) => visitor.visitShowCombinator(this);
 
-  Token get endToken => shownNames.endToken;
+  Token get endToken => _shownNames.endToken;
+
+  /**
+   * Return the list of names from the library that are made visible by this combinator.
+   *
+   * @return the list of names from the library that are made visible by this combinator
+   */
+  NodeList<SimpleIdentifier> get shownNames => _shownNames;
 
   void visitChildren(ASTVisitor visitor) {
-    shownNames.accept(visitor);
+    _shownNames.accept(visitor);
   }
 }
 
@@ -10561,22 +9674,10 @@
    * @param type the name of the declared type of the parameter
    * @param identifier the name of the parameter being declared
    */
-  SimpleFormalParameter.full(Comment comment, List<Annotation> metadata, Token keyword, TypeName type, SimpleIdentifier identifier) : super.full(comment, metadata, identifier) {
-    this.keyword = keyword;
+  SimpleFormalParameter(Comment comment, List<Annotation> metadata, this.keyword, TypeName type, SimpleIdentifier identifier) : super(comment, metadata, identifier) {
     this._type = becomeParentOf(type);
   }
 
-  /**
-   * Initialize a newly created formal parameter.
-   *
-   * @param comment the documentation comment associated with this parameter
-   * @param metadata the annotations associated with this parameter
-   * @param keyword the token representing either the 'final', 'const' or 'var' keyword
-   * @param type the name of the declared type of the parameter
-   * @param identifier the name of the parameter being declared
-   */
-  SimpleFormalParameter({Comment comment, List<Annotation> metadata, Token keyword, TypeName type, SimpleIdentifier identifier}) : this.full(comment, metadata, keyword, type, identifier);
-
   accept(ASTVisitor visitor) => visitor.visitSimpleFormalParameter(this);
 
   Token get beginToken {
@@ -10663,16 +9764,7 @@
    *
    * @param token the token representing the identifier
    */
-  SimpleIdentifier.full(Token token) {
-    this.token = token;
-  }
-
-  /**
-   * Initialize a newly created identifier.
-   *
-   * @param token the token representing the identifier
-   */
-  SimpleIdentifier({Token token}) : this.full(token);
+  SimpleIdentifier(this.token);
 
   accept(ASTVisitor visitor) => visitor.visitSimpleIdentifier(this);
 
@@ -10926,19 +10018,10 @@
    * @param literal the token representing the literal
    * @param value the value of the literal
    */
-  SimpleStringLiteral.full(Token literal, String value) {
-    this.literal = literal;
+  SimpleStringLiteral(this.literal, String value) {
     this._value = StringUtilities.intern(value);
   }
 
-  /**
-   * Initialize a newly created simple string literal.
-   *
-   * @param literal the token representing the literal
-   * @param value the value of the literal
-   */
-  SimpleStringLiteral({Token literal, String value}) : this.full(literal, value);
-
   accept(ASTVisitor visitor) => visitor.visitSimpleStringLiteral(this);
 
   Token get beginToken => literal;
@@ -11032,33 +10115,33 @@
   /**
    * The elements that will be composed to produce the resulting string.
    */
-  NodeList<InterpolationElement> elements;
+  NodeList<InterpolationElement> _elements;
 
   /**
    * Initialize a newly created string interpolation expression.
    *
    * @param elements the elements that will be composed to produce the resulting string
    */
-  StringInterpolation.full(List<InterpolationElement> elements) {
-    this.elements = new NodeList<InterpolationElement>(this);
-    this.elements.addAll(elements);
+  StringInterpolation(List<InterpolationElement> elements) {
+    this._elements = new NodeList<InterpolationElement>(this);
+    this._elements.addAll(elements);
   }
 
-  /**
-   * Initialize a newly created string interpolation expression.
-   *
-   * @param elements the elements that will be composed to produce the resulting string
-   */
-  StringInterpolation({List<InterpolationElement> elements}) : this.full(elements);
-
   accept(ASTVisitor visitor) => visitor.visitStringInterpolation(this);
 
-  Token get beginToken => elements.beginToken;
+  Token get beginToken => _elements.beginToken;
 
-  Token get endToken => elements.endToken;
+  /**
+   * Return the elements that will be composed to produce the resulting string.
+   *
+   * @return the elements that will be composed to produce the resulting string
+   */
+  NodeList<InterpolationElement> get elements => _elements;
+
+  Token get endToken => _elements.endToken;
 
   void visitChildren(ASTVisitor visitor) {
-    elements.accept(visitor);
+    _elements.accept(visitor);
   }
 
   void appendStringValue(JavaStringBuilder builder) {
@@ -11154,24 +10237,11 @@
    * @param constructorName the name of the constructor that is being invoked
    * @param argumentList the list of arguments to the constructor
    */
-  SuperConstructorInvocation.full(Token keyword, Token period, SimpleIdentifier constructorName, ArgumentList argumentList) {
-    this.keyword = keyword;
-    this.period = period;
+  SuperConstructorInvocation(this.keyword, this.period, SimpleIdentifier constructorName, ArgumentList argumentList) {
     this._constructorName = becomeParentOf(constructorName);
     this._argumentList = becomeParentOf(argumentList);
   }
 
-  /**
-   * Initialize a newly created super invocation to invoke the inherited constructor with the given
-   * name with the given arguments.
-   *
-   * @param keyword the token for the 'super' keyword
-   * @param period the token for the period before the name of the constructor that is being invoked
-   * @param constructorName the name of the constructor that is being invoked
-   * @param argumentList the list of arguments to the constructor
-   */
-  SuperConstructorInvocation({Token keyword, Token period, SimpleIdentifier constructorName, ArgumentList argumentList}) : this.full(keyword, period, constructorName, argumentList);
-
   accept(ASTVisitor visitor) => visitor.visitSuperConstructorInvocation(this);
 
   /**
@@ -11238,16 +10308,7 @@
    *
    * @param keyword the token representing the keyword
    */
-  SuperExpression.full(Token keyword) {
-    this.keyword = keyword;
-  }
-
-  /**
-   * Initialize a newly created super expression.
-   *
-   * @param keyword the token representing the keyword
-   */
-  SuperExpression({Token keyword}) : this.full(keyword);
+  SuperExpression(this.keyword);
 
   accept(ASTVisitor visitor) => visitor.visitSuperExpression(this);
 
@@ -11286,21 +10347,10 @@
    * @param colon the colon separating the keyword or the expression from the statements
    * @param statements the statements that will be executed if this switch member is selected
    */
-  SwitchCase.full(List<Label> labels, Token keyword, Expression expression, Token colon, List<Statement> statements) : super.full(labels, keyword, colon, statements) {
+  SwitchCase(List<Label> labels, Token keyword, Expression expression, Token colon, List<Statement> statements) : super(labels, keyword, colon, statements) {
     this._expression = becomeParentOf(expression);
   }
 
-  /**
-   * Initialize a newly created switch case.
-   *
-   * @param labels the labels associated with the switch member
-   * @param keyword the token representing the 'case' or 'default' keyword
-   * @param expression the expression controlling whether the statements will be executed
-   * @param colon the colon separating the keyword or the expression from the statements
-   * @param statements the statements that will be executed if this switch member is selected
-   */
-  SwitchCase({List<Label> labels, Token keyword, Expression expression, Token colon, List<Statement> statements}) : this.full(labels, keyword, expression, colon, statements);
-
   accept(ASTVisitor visitor) => visitor.visitSwitchCase(this);
 
   /**
@@ -11345,17 +10395,7 @@
    * @param colon the colon separating the keyword or the expression from the statements
    * @param statements the statements that will be executed if this switch member is selected
    */
-  SwitchDefault.full(List<Label> labels, Token keyword, Token colon, List<Statement> statements) : super.full(labels, keyword, colon, statements);
-
-  /**
-   * Initialize a newly created switch default.
-   *
-   * @param labels the labels associated with the switch member
-   * @param keyword the token representing the 'case' or 'default' keyword
-   * @param colon the colon separating the keyword or the expression from the statements
-   * @param statements the statements that will be executed if this switch member is selected
-   */
-  SwitchDefault({List<Label> labels, Token keyword, Token colon, List<Statement> statements}) : this.full(labels, keyword, colon, statements);
+  SwitchDefault(List<Label> labels, Token keyword, Token colon, List<Statement> statements) : super(labels, keyword, colon, statements);
 
   accept(ASTVisitor visitor) => visitor.visitSwitchDefault(this);
 
@@ -11381,7 +10421,7 @@
   /**
    * The labels associated with the switch member.
    */
-  NodeList<Label> labels;
+  NodeList<Label> _labels;
 
   /**
    * The token representing the 'case' or 'default' keyword.
@@ -11396,7 +10436,7 @@
   /**
    * The statements that will be executed if this switch member is selected.
    */
-  NodeList<Statement> statements;
+  NodeList<Statement> _statements;
 
   /**
    * Initialize a newly created switch member.
@@ -11406,38 +10446,40 @@
    * @param colon the colon separating the keyword or the expression from the statements
    * @param statements the statements that will be executed if this switch member is selected
    */
-  SwitchMember.full(List<Label> labels, Token keyword, Token colon, List<Statement> statements) {
-    this.labels = new NodeList<Label>(this);
-    this.statements = new NodeList<Statement>(this);
-    this.labels.addAll(labels);
-    this.keyword = keyword;
-    this.colon = colon;
-    this.statements.addAll(statements);
+  SwitchMember(List<Label> labels, this.keyword, this.colon, List<Statement> statements) {
+    this._labels = new NodeList<Label>(this);
+    this._statements = new NodeList<Statement>(this);
+    this._labels.addAll(labels);
+    this._statements.addAll(statements);
   }
 
-  /**
-   * Initialize a newly created switch member.
-   *
-   * @param labels the labels associated with the switch member
-   * @param keyword the token representing the 'case' or 'default' keyword
-   * @param colon the colon separating the keyword or the expression from the statements
-   * @param statements the statements that will be executed if this switch member is selected
-   */
-  SwitchMember({List<Label> labels, Token keyword, Token colon, List<Statement> statements}) : this.full(labels, keyword, colon, statements);
-
   Token get beginToken {
-    if (!labels.isEmpty) {
-      return labels.beginToken;
+    if (!_labels.isEmpty) {
+      return _labels.beginToken;
     }
     return keyword;
   }
 
   Token get endToken {
-    if (!statements.isEmpty) {
-      return statements.endToken;
+    if (!_statements.isEmpty) {
+      return _statements.endToken;
     }
     return colon;
   }
+
+  /**
+   * Return the labels associated with the switch member.
+   *
+   * @return the labels associated with the switch member
+   */
+  NodeList<Label> get labels => _labels;
+
+  /**
+   * Return the statements that will be executed if this switch member is selected.
+   *
+   * @return the statements that will be executed if this switch member is selected
+   */
+  NodeList<Statement> get statements => _statements;
 }
 
 /**
@@ -11479,7 +10521,7 @@
   /**
    * The switch members that can be selected by the expression.
    */
-  NodeList<SwitchMember> members;
+  NodeList<SwitchMember> _members;
 
   /**
    * The right curly bracket.
@@ -11497,30 +10539,12 @@
    * @param members the switch members that can be selected by the expression
    * @param rightBracket the right curly bracket
    */
-  SwitchStatement.full(Token keyword, Token leftParenthesis, Expression expression, Token rightParenthesis, Token leftBracket, List<SwitchMember> members, Token rightBracket) {
-    this.members = new NodeList<SwitchMember>(this);
-    this.keyword = keyword;
-    this.leftParenthesis = leftParenthesis;
+  SwitchStatement(this.keyword, this.leftParenthesis, Expression expression, this.rightParenthesis, this.leftBracket, List<SwitchMember> members, this.rightBracket) {
+    this._members = new NodeList<SwitchMember>(this);
     this._expression = becomeParentOf(expression);
-    this.rightParenthesis = rightParenthesis;
-    this.leftBracket = leftBracket;
-    this.members.addAll(members);
-    this.rightBracket = rightBracket;
+    this._members.addAll(members);
   }
 
-  /**
-   * Initialize a newly created switch statement.
-   *
-   * @param keyword the token representing the 'switch' keyword
-   * @param leftParenthesis the left parenthesis
-   * @param expression the expression used to determine which of the switch members will be selected
-   * @param rightParenthesis the right parenthesis
-   * @param leftBracket the left curly bracket
-   * @param members the switch members that can be selected by the expression
-   * @param rightBracket the right curly bracket
-   */
-  SwitchStatement({Token keyword, Token leftParenthesis, Expression expression, Token rightParenthesis, Token leftBracket, List<SwitchMember> members, Token rightBracket}) : this.full(keyword, leftParenthesis, expression, rightParenthesis, leftBracket, members, rightBracket);
-
   accept(ASTVisitor visitor) => visitor.visitSwitchStatement(this);
 
   Token get beginToken => keyword;
@@ -11535,6 +10559,13 @@
   Expression get expression => _expression;
 
   /**
+   * Return the switch members that can be selected by the expression.
+   *
+   * @return the switch members that can be selected by the expression
+   */
+  NodeList<SwitchMember> get members => _members;
+
+  /**
    * Set the expression used to determine which of the switch members will be selected to the given
    * expression.
    *
@@ -11546,7 +10577,7 @@
 
   void visitChildren(ASTVisitor visitor) {
     safelyVisitChild(_expression, visitor);
-    members.accept(visitor);
+    _members.accept(visitor);
   }
 }
 
@@ -11569,7 +10600,7 @@
   /**
    * The components of the literal.
    */
-  List<Token> components;
+  final List<Token> components;
 
   /**
    * Initialize a newly created symbol literal.
@@ -11577,18 +10608,7 @@
    * @param poundSign the token introducing the literal
    * @param components the components of the literal
    */
-  SymbolLiteral.full(Token poundSign, List<Token> components) {
-    this.poundSign = poundSign;
-    this.components = components;
-  }
-
-  /**
-   * Initialize a newly created symbol literal.
-   *
-   * @param poundSign the token introducing the literal
-   * @param components the components of the literal
-   */
-  SymbolLiteral({Token poundSign, List<Token> components}) : this.full(poundSign, components);
+  SymbolLiteral(this.poundSign, this.components);
 
   accept(ASTVisitor visitor) => visitor.visitSymbolLiteral(this);
 
@@ -11621,16 +10641,7 @@
    *
    * @param keyword the token representing the keyword
    */
-  ThisExpression.full(Token keyword) {
-    this.keyword = keyword;
-  }
-
-  /**
-   * Initialize a newly created this expression.
-   *
-   * @param keyword the token representing the keyword
-   */
-  ThisExpression({Token keyword}) : this.full(keyword);
+  ThisExpression(this.keyword);
 
   accept(ASTVisitor visitor) => visitor.visitThisExpression(this);
 
@@ -11671,19 +10682,10 @@
    * @param keyword the token representing the 'throw' keyword
    * @param expression the expression computing the exception to be thrown
    */
-  ThrowExpression.full(Token keyword, Expression expression) {
-    this.keyword = keyword;
+  ThrowExpression(this.keyword, Expression expression) {
     this._expression = becomeParentOf(expression);
   }
 
-  /**
-   * Initialize a newly created throw expression.
-   *
-   * @param keyword the token representing the 'throw' keyword
-   * @param expression the expression computing the exception to be thrown
-   */
-  ThrowExpression({Token keyword, Expression expression}) : this.full(keyword, expression);
-
   accept(ASTVisitor visitor) => visitor.visitThrowExpression(this);
 
   Token get beginToken => keyword;
@@ -11749,21 +10751,10 @@
    * @param variableList the top-level variables being declared
    * @param semicolon the semicolon terminating the declaration
    */
-  TopLevelVariableDeclaration.full(Comment comment, List<Annotation> metadata, VariableDeclarationList variableList, Token semicolon) : super.full(comment, metadata) {
+  TopLevelVariableDeclaration(Comment comment, List<Annotation> metadata, VariableDeclarationList variableList, this.semicolon) : super(comment, metadata) {
     this._variableList = becomeParentOf(variableList);
-    this.semicolon = semicolon;
   }
 
-  /**
-   * Initialize a newly created top-level variable declaration.
-   *
-   * @param comment the documentation comment associated with this variable
-   * @param metadata the annotations associated with this variable
-   * @param variableList the top-level variables being declared
-   * @param semicolon the semicolon terminating the declaration
-   */
-  TopLevelVariableDeclaration({Comment comment, List<Annotation> metadata, VariableDeclarationList variableList, Token semicolon}) : this.full(comment, metadata, variableList, semicolon);
-
   accept(ASTVisitor visitor) => visitor.visitTopLevelVariableDeclaration(this);
 
   Element get element => null;
@@ -11821,7 +10812,7 @@
   /**
    * The catch clauses contained in the try statement.
    */
-  NodeList<CatchClause> catchClauses;
+  NodeList<CatchClause> _catchClauses;
 
   /**
    * The token representing the 'finally' keyword, or `null` if the statement does not contain
@@ -11844,26 +10835,13 @@
    * @param finallyKeyword the token representing the 'finally' keyword
    * @param finallyBlock the finally block contained in the try statement
    */
-  TryStatement.full(Token tryKeyword, Block body, List<CatchClause> catchClauses, Token finallyKeyword, Block finallyBlock) {
-    this.catchClauses = new NodeList<CatchClause>(this);
-    this.tryKeyword = tryKeyword;
+  TryStatement(this.tryKeyword, Block body, List<CatchClause> catchClauses, this.finallyKeyword, Block finallyBlock) {
+    this._catchClauses = new NodeList<CatchClause>(this);
     this._body = becomeParentOf(body);
-    this.catchClauses.addAll(catchClauses);
-    this.finallyKeyword = finallyKeyword;
+    this._catchClauses.addAll(catchClauses);
     this._finallyBlock = becomeParentOf(finallyBlock);
   }
 
-  /**
-   * Initialize a newly created try statement.
-   *
-   * @param tryKeyword the token representing the 'try' keyword
-   * @param body the body of the statement
-   * @param catchClauses the catch clauses contained in the try statement
-   * @param finallyKeyword the token representing the 'finally' keyword
-   * @param finallyBlock the finally block contained in the try statement
-   */
-  TryStatement({Token tryKeyword, Block body, List<CatchClause> catchClauses, Token finallyKeyword, Block finallyBlock}) : this.full(tryKeyword, body, catchClauses, finallyKeyword, finallyBlock);
-
   accept(ASTVisitor visitor) => visitor.visitTryStatement(this);
 
   Token get beginToken => tryKeyword;
@@ -11875,13 +10853,20 @@
    */
   Block get body => _body;
 
+  /**
+   * Return the catch clauses contained in the try statement.
+   *
+   * @return the catch clauses contained in the try statement
+   */
+  NodeList<CatchClause> get catchClauses => _catchClauses;
+
   Token get endToken {
     if (_finallyBlock != null) {
       return _finallyBlock.endToken;
     } else if (finallyKeyword != null) {
       return finallyKeyword;
-    } else if (!catchClauses.isEmpty) {
-      return catchClauses.endToken;
+    } else if (!_catchClauses.isEmpty) {
+      return _catchClauses.endToken;
     }
     return _body.endToken;
   }
@@ -11914,7 +10899,7 @@
 
   void visitChildren(ASTVisitor visitor) {
     safelyVisitChild(_body, visitor);
-    catchClauses.accept(visitor);
+    _catchClauses.accept(visitor);
     safelyVisitChild(_finallyBlock, visitor);
   }
 }
@@ -11952,20 +10937,7 @@
    * @param keyword the token representing the 'typedef' keyword
    * @param semicolon the semicolon terminating the declaration
    */
-  TypeAlias.full(Comment comment, List<Annotation> metadata, Token keyword, Token semicolon) : super.full(comment, metadata) {
-    this.keyword = keyword;
-    this.semicolon = semicolon;
-  }
-
-  /**
-   * Initialize a newly created type alias.
-   *
-   * @param comment the documentation comment associated with this type alias
-   * @param metadata the annotations associated with this type alias
-   * @param keyword the token representing the 'typedef' keyword
-   * @param semicolon the semicolon terminating the declaration
-   */
-  TypeAlias({Comment comment, List<Annotation> metadata, Token keyword, Token semicolon}) : this.full(comment, metadata, keyword, semicolon);
+  TypeAlias(Comment comment, List<Annotation> metadata, this.keyword, this.semicolon) : super(comment, metadata);
 
   Token get endToken => semicolon;
 
@@ -11991,7 +10963,7 @@
   /**
    * The type arguments associated with the type.
    */
-  NodeList<TypeName> arguments;
+  NodeList<TypeName> _arguments;
 
   /**
    * The right bracket.
@@ -12005,30 +10977,26 @@
    * @param arguments the type arguments associated with the type
    * @param rightBracket the right bracket
    */
-  TypeArgumentList.full(Token leftBracket, List<TypeName> arguments, Token rightBracket) {
-    this.arguments = new NodeList<TypeName>(this);
-    this.leftBracket = leftBracket;
-    this.arguments.addAll(arguments);
-    this.rightBracket = rightBracket;
+  TypeArgumentList(this.leftBracket, List<TypeName> arguments, this.rightBracket) {
+    this._arguments = new NodeList<TypeName>(this);
+    this._arguments.addAll(arguments);
   }
 
-  /**
-   * Initialize a newly created list of type arguments.
-   *
-   * @param leftBracket the left bracket
-   * @param arguments the type arguments associated with the type
-   * @param rightBracket the right bracket
-   */
-  TypeArgumentList({Token leftBracket, List<TypeName> arguments, Token rightBracket}) : this.full(leftBracket, arguments, rightBracket);
-
   accept(ASTVisitor visitor) => visitor.visitTypeArgumentList(this);
 
+  /**
+   * Return the type arguments associated with the type.
+   *
+   * @return the type arguments associated with the type
+   */
+  NodeList<TypeName> get arguments => _arguments;
+
   Token get beginToken => leftBracket;
 
   Token get endToken => rightBracket;
 
   void visitChildren(ASTVisitor visitor) {
-    arguments.accept(visitor);
+    _arguments.accept(visitor);
   }
 }
 
@@ -12066,20 +11034,11 @@
    * @param typeArguments the type arguments associated with the type, or `null` if there are
    *          no type arguments
    */
-  TypeName.full(Identifier name, TypeArgumentList typeArguments) {
+  TypeName(Identifier name, TypeArgumentList typeArguments) {
     this._name = becomeParentOf(name);
     this._typeArguments = becomeParentOf(typeArguments);
   }
 
-  /**
-   * Initialize a newly created type name.
-   *
-   * @param name the name of the type
-   * @param typeArguments the type arguments associated with the type, or `null` if there are
-   *          no type arguments
-   */
-  TypeName({Identifier name, TypeArgumentList typeArguments}) : this.full(name, typeArguments);
-
   accept(ASTVisitor visitor) => visitor.visitTypeName(this);
 
   Token get beginToken => _name.beginToken;
@@ -12169,23 +11128,11 @@
    * @param keyword the token representing the 'extends' keyword
    * @param bound the name of the upper bound for legal arguments
    */
-  TypeParameter.full(Comment comment, List<Annotation> metadata, SimpleIdentifier name, Token keyword, TypeName bound) : super.full(comment, metadata) {
+  TypeParameter(Comment comment, List<Annotation> metadata, SimpleIdentifier name, this.keyword, TypeName bound) : super(comment, metadata) {
     this._name = becomeParentOf(name);
-    this.keyword = keyword;
     this._bound = becomeParentOf(bound);
   }
 
-  /**
-   * Initialize a newly created type parameter.
-   *
-   * @param comment the documentation comment associated with the type parameter
-   * @param metadata the annotations associated with the type parameter
-   * @param name the name of the type parameter
-   * @param keyword the token representing the 'extends' keyword
-   * @param bound the name of the upper bound for legal arguments
-   */
-  TypeParameter({Comment comment, List<Annotation> metadata, SimpleIdentifier name, Token keyword, TypeName bound}) : this.full(comment, metadata, name, keyword, bound);
-
   accept(ASTVisitor visitor) => visitor.visitTypeParameter(this);
 
   /**
@@ -12253,17 +11200,17 @@
   /**
    * The left angle bracket.
    */
-  Token leftBracket;
+  final Token leftBracket;
 
   /**
    * The type parameters in the list.
    */
-  NodeList<TypeParameter> typeParameters;
+  NodeList<TypeParameter> _typeParameters;
 
   /**
    * The right angle bracket.
    */
-  Token rightBracket;
+  final Token rightBracket;
 
   /**
    * Initialize a newly created list of type parameters.
@@ -12272,30 +11219,26 @@
    * @param typeParameters the type parameters in the list
    * @param rightBracket the right angle bracket
    */
-  TypeParameterList.full(Token leftBracket, List<TypeParameter> typeParameters, Token rightBracket) {
-    this.typeParameters = new NodeList<TypeParameter>(this);
-    this.leftBracket = leftBracket;
-    this.typeParameters.addAll(typeParameters);
-    this.rightBracket = rightBracket;
+  TypeParameterList(this.leftBracket, List<TypeParameter> typeParameters, this.rightBracket) {
+    this._typeParameters = new NodeList<TypeParameter>(this);
+    this._typeParameters.addAll(typeParameters);
   }
 
-  /**
-   * Initialize a newly created list of type parameters.
-   *
-   * @param leftBracket the left angle bracket
-   * @param typeParameters the type parameters in the list
-   * @param rightBracket the right angle bracket
-   */
-  TypeParameterList({Token leftBracket, List<TypeParameter> typeParameters, Token rightBracket}) : this.full(leftBracket, typeParameters, rightBracket);
-
   accept(ASTVisitor visitor) => visitor.visitTypeParameterList(this);
 
   Token get beginToken => leftBracket;
 
   Token get endToken => rightBracket;
 
+  /**
+   * Return the type parameters for the type.
+   *
+   * @return the type parameters for the type
+   */
+  NodeList<TypeParameter> get typeParameters => _typeParameters;
+
   void visitChildren(ASTVisitor visitor) {
-    typeParameters.accept(visitor);
+    _typeParameters.accept(visitor);
   }
 }
 
@@ -12330,20 +11273,10 @@
    * @param typeArguments the type argument associated with this literal, or `null` if no type
    *          arguments were declared
    */
-  TypedLiteral.full(Token constKeyword, TypeArgumentList typeArguments) {
-    this.constKeyword = constKeyword;
+  TypedLiteral(this.constKeyword, TypeArgumentList typeArguments) {
     this.typeArguments = becomeParentOf(typeArguments);
   }
 
-  /**
-   * Initialize a newly created typed literal.
-   *
-   * @param constKeyword the token representing the 'const' keyword
-   * @param typeArguments the type argument associated with this literal, or `null` if no type
-   *          arguments were declared
-   */
-  TypedLiteral({Token constKeyword, TypeArgumentList typeArguments}) : this.full(constKeyword, typeArguments);
-
   void visitChildren(ASTVisitor visitor) {
     safelyVisitChild(typeArguments, visitor);
   }
@@ -12375,20 +11308,11 @@
    * @param metadata the annotations associated with the directive
    * @param uri the URI referenced by this directive
    */
-  UriBasedDirective.full(Comment comment, List<Annotation> metadata, StringLiteral uri) : super.full(comment, metadata) {
+  UriBasedDirective(Comment comment, List<Annotation> metadata, StringLiteral uri) : super(comment, metadata) {
     this._uri = becomeParentOf(uri);
   }
 
   /**
-   * Initialize a newly create URI-based directive.
-   *
-   * @param comment the documentation comment associated with this directive
-   * @param metadata the annotations associated with the directive
-   * @param uri the URI referenced by this directive
-   */
-  UriBasedDirective({Comment comment, List<Annotation> metadata, StringLiteral uri}) : this.full(comment, metadata, uri);
-
-  /**
    * Return the URI referenced by this directive.
    *
    * @return the URI referenced by this directive
@@ -12458,23 +11382,11 @@
    * @param equals the equal sign separating the variable name from the initial value
    * @param initializer the expression used to compute the initial value for the variable
    */
-  VariableDeclaration.full(Comment comment, List<Annotation> metadata, SimpleIdentifier name, Token equals, Expression initializer) : super.full(comment, metadata) {
+  VariableDeclaration(Comment comment, List<Annotation> metadata, SimpleIdentifier name, this.equals, Expression initializer) : super(comment, metadata) {
     this._name = becomeParentOf(name);
-    this.equals = equals;
     this._initializer = becomeParentOf(initializer);
   }
 
-  /**
-   * Initialize a newly created variable declaration.
-   *
-   * @param comment the documentation comment associated with this declaration
-   * @param metadata the annotations associated with this member
-   * @param name the name of the variable being declared
-   * @param equals the equal sign separating the variable name from the initial value
-   * @param initializer the expression used to compute the initial value for the variable
-   */
-  VariableDeclaration({Comment comment, List<Annotation> metadata, SimpleIdentifier name, Token equals, Expression initializer}) : this.full(comment, metadata, name, equals, initializer);
-
   accept(ASTVisitor visitor) => visitor.visitVariableDeclaration(this);
 
   /**
@@ -12599,7 +11511,7 @@
   /**
    * A list containing the individual variables being declared.
    */
-  NodeList<VariableDeclaration> variables;
+  NodeList<VariableDeclaration> _variables;
 
   /**
    * Initialize a newly created variable declaration list.
@@ -12610,27 +11522,15 @@
    * @param type the type of the variables being declared
    * @param variables a list containing the individual variables being declared
    */
-  VariableDeclarationList.full(Comment comment, List<Annotation> metadata, Token keyword, TypeName type, List<VariableDeclaration> variables) : super.full(comment, metadata) {
-    this.variables = new NodeList<VariableDeclaration>(this);
-    this.keyword = keyword;
+  VariableDeclarationList(Comment comment, List<Annotation> metadata, this.keyword, TypeName type, List<VariableDeclaration> variables) : super(comment, metadata) {
+    this._variables = new NodeList<VariableDeclaration>(this);
     this._type = becomeParentOf(type);
-    this.variables.addAll(variables);
+    this._variables.addAll(variables);
   }
 
-  /**
-   * Initialize a newly created variable declaration list.
-   *
-   * @param comment the documentation comment associated with this declaration list
-   * @param metadata the annotations associated with this declaration list
-   * @param keyword the token representing the 'final', 'const' or 'var' keyword
-   * @param type the type of the variables being declared
-   * @param variables a list containing the individual variables being declared
-   */
-  VariableDeclarationList({Comment comment, List<Annotation> metadata, Token keyword, TypeName type, List<VariableDeclaration> variables}) : this.full(comment, metadata, keyword, type, variables);
-
   accept(ASTVisitor visitor) => visitor.visitVariableDeclarationList(this);
 
-  Token get endToken => variables.endToken;
+  Token get endToken => _variables.endToken;
 
   /**
    * Return the type of the variables being declared, or `null` if no type was provided.
@@ -12640,6 +11540,13 @@
   TypeName get type => _type;
 
   /**
+   * Return a list containing the individual variables being declared.
+   *
+   * @return a list containing the individual variables being declared
+   */
+  NodeList<VariableDeclaration> get variables => _variables;
+
+  /**
    * Return `true` if the variables in this list were declared with the 'const' modifier.
    *
    * @return `true` if the variables in this list were declared with the 'const' modifier
@@ -12666,7 +11573,7 @@
 
   void visitChildren(ASTVisitor visitor) {
     safelyVisitChild(_type, visitor);
-    variables.accept(visitor);
+    _variables.accept(visitor);
   }
 
   Token get firstTokenAfterCommentAndMetadata {
@@ -12675,7 +11582,7 @@
     } else if (_type != null) {
       return _type.beginToken;
     }
-    return variables.beginToken;
+    return _variables.beginToken;
   }
 }
 
@@ -12707,19 +11614,10 @@
    * @param variableList the fields being declared
    * @param semicolon the semicolon terminating the statement
    */
-  VariableDeclarationStatement.full(VariableDeclarationList variableList, Token semicolon) {
+  VariableDeclarationStatement(VariableDeclarationList variableList, this.semicolon) {
     this._variableList = becomeParentOf(variableList);
-    this.semicolon = semicolon;
   }
 
-  /**
-   * Initialize a newly created variable declaration statement.
-   *
-   * @param variableList the fields being declared
-   * @param semicolon the semicolon terminating the statement
-   */
-  VariableDeclarationStatement({VariableDeclarationList variableList, Token semicolon}) : this.full(variableList, semicolon);
-
   accept(ASTVisitor visitor) => visitor.visitVariableDeclarationStatement(this);
 
   Token get beginToken => _variableList.beginToken;
@@ -12792,25 +11690,11 @@
    * @param rightParenthesis the right parenthesis
    * @param body the body of the loop
    */
-  WhileStatement.full(Token keyword, Token leftParenthesis, Expression condition, Token rightParenthesis, Statement body) {
-    this.keyword = keyword;
-    this.leftParenthesis = leftParenthesis;
+  WhileStatement(this.keyword, this.leftParenthesis, Expression condition, this.rightParenthesis, Statement body) {
     this._condition = becomeParentOf(condition);
-    this.rightParenthesis = rightParenthesis;
     this._body = becomeParentOf(body);
   }
 
-  /**
-   * Initialize a newly created while statement.
-   *
-   * @param keyword the token representing the 'while' keyword
-   * @param leftParenthesis the left parenthesis
-   * @param condition the expression used to determine whether to execute the body of the loop
-   * @param rightParenthesis the right parenthesis
-   * @param body the body of the loop
-   */
-  WhileStatement({Token keyword, Token leftParenthesis, Expression condition, Token rightParenthesis, Statement body}) : this.full(keyword, leftParenthesis, condition, rightParenthesis, body);
-
   accept(ASTVisitor visitor) => visitor.visitWhileStatement(this);
 
   Token get beginToken => keyword;
@@ -12870,12 +11754,12 @@
   /**
    * The token representing the 'with' keyword.
    */
-  Token withKeyword;
+  Token _withKeyword;
 
   /**
    * The names of the mixins that were specified.
    */
-  NodeList<TypeName> mixinTypes;
+  NodeList<TypeName> _mixinTypes;
 
   /**
    * Initialize a newly created with clause.
@@ -12883,25 +11767,31 @@
    * @param withKeyword the token representing the 'with' keyword
    * @param mixinTypes the names of the mixins that were specified
    */
-  WithClause.full(Token withKeyword, List<TypeName> mixinTypes) {
-    this.mixinTypes = new NodeList<TypeName>(this);
-    this.withKeyword = withKeyword;
-    this.mixinTypes.addAll(mixinTypes);
+  WithClause(Token withKeyword, List<TypeName> mixinTypes) {
+    this._mixinTypes = new NodeList<TypeName>(this);
+    this._withKeyword = withKeyword;
+    this._mixinTypes.addAll(mixinTypes);
   }
 
-  /**
-   * Initialize a newly created with clause.
-   *
-   * @param withKeyword the token representing the 'with' keyword
-   * @param mixinTypes the names of the mixins that were specified
-   */
-  WithClause({Token withKeyword, List<TypeName> mixinTypes}) : this.full(withKeyword, mixinTypes);
-
   accept(ASTVisitor visitor) => visitor.visitWithClause(this);
 
-  Token get beginToken => withKeyword;
+  Token get beginToken => _withKeyword;
 
-  Token get endToken => mixinTypes.endToken;
+  Token get endToken => _mixinTypes.endToken;
+
+  /**
+   * Return the names of the mixins that were specified.
+   *
+   * @return the names of the mixins that were specified
+   */
+  NodeList<TypeName> get mixinTypes => _mixinTypes;
+
+  /**
+   * Return the token representing the 'with' keyword.
+   *
+   * @return the token representing the 'with' keyword
+   */
+  Token get withKeyword => _withKeyword;
 
   /**
    * Set the token representing the 'with' keyword to the given token.
@@ -12909,11 +11799,11 @@
    * @param withKeyword the token representing the 'with' keyword
    */
   void set mixinKeyword(Token withKeyword) {
-    this.withKeyword = withKeyword;
+    this._withKeyword = withKeyword;
   }
 
   void visitChildren(ASTVisitor visitor) {
-    mixinTypes.accept(visitor);
+    _mixinTypes.accept(visitor);
   }
 }
 
@@ -13691,7 +12581,7 @@
    * The element that was found that corresponds to the given source range, or `null` if there
    * is no such element.
    */
-  ASTNode foundNode;
+  ASTNode _foundNode;
 
   /**
    * Initialize a newly created locator to locate one or more [ASTNode] by locating
@@ -13715,6 +12605,14 @@
   }
 
   /**
+   * Return the node that was found that corresponds to the given source range, or `null` if
+   * there is no such node.
+   *
+   * @return the node that was found
+   */
+  ASTNode get foundNode => _foundNode;
+
+  /**
    * Search within the given AST node for an identifier representing a [DartElement] in the specified source range. Return the element that was found, or `null` if
    * no element was found.
    *
@@ -13732,7 +12630,7 @@
       AnalysisEngine.instance.logger.logInformation2("Unable to locate element at offset (${_startOffset} - ${_endOffset})", exception);
       return null;
     }
-    return foundNode;
+    return _foundNode;
   }
 
   Object visitNode(ASTNode node) {
@@ -13752,7 +12650,7 @@
       AnalysisEngine.instance.logger.logInformation2("Exception caught while traversing an AST structure.", exception);
     }
     if (start <= _startOffset && _endOffset <= end) {
-      foundNode = node;
+      _foundNode = node;
       throw new NodeLocator_NodeFoundException();
     }
     return null;
@@ -15708,41 +14606,41 @@
  * results or properties associated with the nodes.
  */
 class ASTCloner implements ASTVisitor<ASTNode> {
-  AdjacentStrings visitAdjacentStrings(AdjacentStrings node) => new AdjacentStrings.full(clone3(node.strings));
+  AdjacentStrings visitAdjacentStrings(AdjacentStrings node) => new AdjacentStrings(clone3(node.strings));
 
-  Annotation visitAnnotation(Annotation node) => new Annotation.full(node.atSign, clone2(node.name), node.period, clone2(node.constructorName), clone2(node.arguments));
+  Annotation visitAnnotation(Annotation node) => new Annotation(node.atSign, clone2(node.name), node.period, clone2(node.constructorName), clone2(node.arguments));
 
-  ArgumentDefinitionTest visitArgumentDefinitionTest(ArgumentDefinitionTest node) => new ArgumentDefinitionTest.full(node.question, clone2(node.identifier));
+  ArgumentDefinitionTest visitArgumentDefinitionTest(ArgumentDefinitionTest node) => new ArgumentDefinitionTest(node.question, clone2(node.identifier));
 
-  ArgumentList visitArgumentList(ArgumentList node) => new ArgumentList.full(node.leftParenthesis, clone3(node.arguments), node.rightParenthesis);
+  ArgumentList visitArgumentList(ArgumentList node) => new ArgumentList(node.leftParenthesis, clone3(node.arguments), node.rightParenthesis);
 
-  AsExpression visitAsExpression(AsExpression node) => new AsExpression.full(clone2(node.expression), node.asOperator, clone2(node.type));
+  AsExpression visitAsExpression(AsExpression node) => new AsExpression(clone2(node.expression), node.asOperator, clone2(node.type));
 
-  ASTNode visitAssertStatement(AssertStatement node) => new AssertStatement.full(node.keyword, node.leftParenthesis, clone2(node.condition), node.rightParenthesis, node.semicolon);
+  ASTNode visitAssertStatement(AssertStatement node) => new AssertStatement(node.keyword, node.leftParenthesis, clone2(node.condition), node.rightParenthesis, node.semicolon);
 
-  AssignmentExpression visitAssignmentExpression(AssignmentExpression node) => new AssignmentExpression.full(clone2(node.leftHandSide), node.operator, clone2(node.rightHandSide));
+  AssignmentExpression visitAssignmentExpression(AssignmentExpression node) => new AssignmentExpression(clone2(node.leftHandSide), node.operator, clone2(node.rightHandSide));
 
-  BinaryExpression visitBinaryExpression(BinaryExpression node) => new BinaryExpression.full(clone2(node.leftOperand), node.operator, clone2(node.rightOperand));
+  BinaryExpression visitBinaryExpression(BinaryExpression node) => new BinaryExpression(clone2(node.leftOperand), node.operator, clone2(node.rightOperand));
 
-  Block visitBlock(Block node) => new Block.full(node.leftBracket, clone3(node.statements), node.rightBracket);
+  Block visitBlock(Block node) => new Block(node.leftBracket, clone3(node.statements), node.rightBracket);
 
-  BlockFunctionBody visitBlockFunctionBody(BlockFunctionBody node) => new BlockFunctionBody.full(clone2(node.block));
+  BlockFunctionBody visitBlockFunctionBody(BlockFunctionBody node) => new BlockFunctionBody(clone2(node.block));
 
-  BooleanLiteral visitBooleanLiteral(BooleanLiteral node) => new BooleanLiteral.full(node.literal, node.value);
+  BooleanLiteral visitBooleanLiteral(BooleanLiteral node) => new BooleanLiteral(node.literal, node.value);
 
-  BreakStatement visitBreakStatement(BreakStatement node) => new BreakStatement.full(node.keyword, clone2(node.label), node.semicolon);
+  BreakStatement visitBreakStatement(BreakStatement node) => new BreakStatement(node.keyword, clone2(node.label), node.semicolon);
 
-  CascadeExpression visitCascadeExpression(CascadeExpression node) => new CascadeExpression.full(clone2(node.target), clone3(node.cascadeSections));
+  CascadeExpression visitCascadeExpression(CascadeExpression node) => new CascadeExpression(clone2(node.target), clone3(node.cascadeSections));
 
-  CatchClause visitCatchClause(CatchClause node) => new CatchClause.full(node.onKeyword, clone2(node.exceptionType), node.catchKeyword, node.leftParenthesis, clone2(node.exceptionParameter), node.comma, clone2(node.stackTraceParameter), node.rightParenthesis, clone2(node.body));
+  CatchClause visitCatchClause(CatchClause node) => new CatchClause(node.onKeyword, clone2(node.exceptionType), node.catchKeyword, node.leftParenthesis, clone2(node.exceptionParameter), node.comma, clone2(node.stackTraceParameter), node.rightParenthesis, clone2(node.body));
 
   ClassDeclaration visitClassDeclaration(ClassDeclaration node) {
-    ClassDeclaration copy = new ClassDeclaration.full(clone2(node.documentationComment), clone3(node.metadata), node.abstractKeyword, node.classKeyword, clone2(node.name), clone2(node.typeParameters), clone2(node.extendsClause), clone2(node.withClause), clone2(node.implementsClause), node.leftBracket, clone3(node.members), node.rightBracket);
+    ClassDeclaration copy = new ClassDeclaration(clone2(node.documentationComment), clone3(node.metadata), node.abstractKeyword, node.classKeyword, clone2(node.name), clone2(node.typeParameters), clone2(node.extendsClause), clone2(node.withClause), clone2(node.implementsClause), node.leftBracket, clone3(node.members), node.rightBracket);
     copy.nativeClause = clone2(node.nativeClause);
     return copy;
   }
 
-  ClassTypeAlias visitClassTypeAlias(ClassTypeAlias node) => new ClassTypeAlias.full(clone2(node.documentationComment), clone3(node.metadata), node.keyword, clone2(node.name), clone2(node.typeParameters), node.equals, node.abstractKeyword, clone2(node.superclass), clone2(node.withClause), clone2(node.implementsClause), node.semicolon);
+  ClassTypeAlias visitClassTypeAlias(ClassTypeAlias node) => new ClassTypeAlias(clone2(node.documentationComment), clone3(node.metadata), node.keyword, clone2(node.name), clone2(node.typeParameters), node.equals, node.abstractKeyword, clone2(node.superclass), clone2(node.withClause), clone2(node.implementsClause), node.semicolon);
 
   Comment visitComment(Comment node) {
     if (node.isDocumentation) {
@@ -15753,194 +14651,194 @@
     return Comment.createEndOfLineComment(node.tokens);
   }
 
-  CommentReference visitCommentReference(CommentReference node) => new CommentReference.full(node.newKeyword, clone2(node.identifier));
+  CommentReference visitCommentReference(CommentReference node) => new CommentReference(node.newKeyword, clone2(node.identifier));
 
   CompilationUnit visitCompilationUnit(CompilationUnit node) {
-    CompilationUnit clone = new CompilationUnit.full(node.beginToken, clone2(node.scriptTag), clone3(node.directives), clone3(node.declarations), node.endToken);
+    CompilationUnit clone = new CompilationUnit(node.beginToken, clone2(node.scriptTag), clone3(node.directives), clone3(node.declarations), node.endToken);
     clone.lineInfo = node.lineInfo;
     return clone;
   }
 
-  ConditionalExpression visitConditionalExpression(ConditionalExpression node) => new ConditionalExpression.full(clone2(node.condition), node.question, clone2(node.thenExpression), node.colon, clone2(node.elseExpression));
+  ConditionalExpression visitConditionalExpression(ConditionalExpression node) => new ConditionalExpression(clone2(node.condition), node.question, clone2(node.thenExpression), node.colon, clone2(node.elseExpression));
 
-  ConstructorDeclaration visitConstructorDeclaration(ConstructorDeclaration node) => new ConstructorDeclaration.full(clone2(node.documentationComment), clone3(node.metadata), node.externalKeyword, node.constKeyword, node.factoryKeyword, clone2(node.returnType), node.period, clone2(node.name), clone2(node.parameters), node.separator, clone3(node.initializers), clone2(node.redirectedConstructor), clone2(node.body));
+  ConstructorDeclaration visitConstructorDeclaration(ConstructorDeclaration node) => new ConstructorDeclaration(clone2(node.documentationComment), clone3(node.metadata), node.externalKeyword, node.constKeyword, node.factoryKeyword, clone2(node.returnType), node.period, clone2(node.name), clone2(node.parameters), node.separator, clone3(node.initializers), clone2(node.redirectedConstructor), clone2(node.body));
 
-  ConstructorFieldInitializer visitConstructorFieldInitializer(ConstructorFieldInitializer node) => new ConstructorFieldInitializer.full(node.keyword, node.period, clone2(node.fieldName), node.equals, clone2(node.expression));
+  ConstructorFieldInitializer visitConstructorFieldInitializer(ConstructorFieldInitializer node) => new ConstructorFieldInitializer(node.keyword, node.period, clone2(node.fieldName), node.equals, clone2(node.expression));
 
-  ConstructorName visitConstructorName(ConstructorName node) => new ConstructorName.full(clone2(node.type), node.period, clone2(node.name));
+  ConstructorName visitConstructorName(ConstructorName node) => new ConstructorName(clone2(node.type), node.period, clone2(node.name));
 
-  ContinueStatement visitContinueStatement(ContinueStatement node) => new ContinueStatement.full(node.keyword, clone2(node.label), node.semicolon);
+  ContinueStatement visitContinueStatement(ContinueStatement node) => new ContinueStatement(node.keyword, clone2(node.label), node.semicolon);
 
-  DeclaredIdentifier visitDeclaredIdentifier(DeclaredIdentifier node) => new DeclaredIdentifier.full(clone2(node.documentationComment), clone3(node.metadata), node.keyword, clone2(node.type), clone2(node.identifier));
+  DeclaredIdentifier visitDeclaredIdentifier(DeclaredIdentifier node) => new DeclaredIdentifier(clone2(node.documentationComment), clone3(node.metadata), node.keyword, clone2(node.type), clone2(node.identifier));
 
-  DefaultFormalParameter visitDefaultFormalParameter(DefaultFormalParameter node) => new DefaultFormalParameter.full(clone2(node.parameter), node.kind, node.separator, clone2(node.defaultValue));
+  DefaultFormalParameter visitDefaultFormalParameter(DefaultFormalParameter node) => new DefaultFormalParameter(clone2(node.parameter), node.kind, node.separator, clone2(node.defaultValue));
 
-  DoStatement visitDoStatement(DoStatement node) => new DoStatement.full(node.doKeyword, clone2(node.body), node.whileKeyword, node.leftParenthesis, clone2(node.condition), node.rightParenthesis, node.semicolon);
+  DoStatement visitDoStatement(DoStatement node) => new DoStatement(node.doKeyword, clone2(node.body), node.whileKeyword, node.leftParenthesis, clone2(node.condition), node.rightParenthesis, node.semicolon);
 
-  DoubleLiteral visitDoubleLiteral(DoubleLiteral node) => new DoubleLiteral.full(node.literal, node.value);
+  DoubleLiteral visitDoubleLiteral(DoubleLiteral node) => new DoubleLiteral(node.literal, node.value);
 
-  EmptyFunctionBody visitEmptyFunctionBody(EmptyFunctionBody node) => new EmptyFunctionBody.full(node.semicolon);
+  EmptyFunctionBody visitEmptyFunctionBody(EmptyFunctionBody node) => new EmptyFunctionBody(node.semicolon);
 
-  EmptyStatement visitEmptyStatement(EmptyStatement node) => new EmptyStatement.full(node.semicolon);
+  EmptyStatement visitEmptyStatement(EmptyStatement node) => new EmptyStatement(node.semicolon);
 
-  ExportDirective visitExportDirective(ExportDirective node) => new ExportDirective.full(clone2(node.documentationComment), clone3(node.metadata), node.keyword, clone2(node.uri), clone3(node.combinators), node.semicolon);
+  ExportDirective visitExportDirective(ExportDirective node) => new ExportDirective(clone2(node.documentationComment), clone3(node.metadata), node.keyword, clone2(node.uri), clone3(node.combinators), node.semicolon);
 
-  ExpressionFunctionBody visitExpressionFunctionBody(ExpressionFunctionBody node) => new ExpressionFunctionBody.full(node.functionDefinition, clone2(node.expression), node.semicolon);
+  ExpressionFunctionBody visitExpressionFunctionBody(ExpressionFunctionBody node) => new ExpressionFunctionBody(node.functionDefinition, clone2(node.expression), node.semicolon);
 
-  ExpressionStatement visitExpressionStatement(ExpressionStatement node) => new ExpressionStatement.full(clone2(node.expression), node.semicolon);
+  ExpressionStatement visitExpressionStatement(ExpressionStatement node) => new ExpressionStatement(clone2(node.expression), node.semicolon);
 
-  ExtendsClause visitExtendsClause(ExtendsClause node) => new ExtendsClause.full(node.keyword, clone2(node.superclass));
+  ExtendsClause visitExtendsClause(ExtendsClause node) => new ExtendsClause(node.keyword, clone2(node.superclass));
 
-  FieldDeclaration visitFieldDeclaration(FieldDeclaration node) => new FieldDeclaration.full(clone2(node.documentationComment), clone3(node.metadata), node.staticKeyword, clone2(node.fields), node.semicolon);
+  FieldDeclaration visitFieldDeclaration(FieldDeclaration node) => new FieldDeclaration(clone2(node.documentationComment), clone3(node.metadata), node.staticKeyword, clone2(node.fields), node.semicolon);
 
-  FieldFormalParameter visitFieldFormalParameter(FieldFormalParameter node) => new FieldFormalParameter.full(clone2(node.documentationComment), clone3(node.metadata), node.keyword, clone2(node.type), node.thisToken, node.period, clone2(node.identifier), clone2(node.parameters));
+  FieldFormalParameter visitFieldFormalParameter(FieldFormalParameter node) => new FieldFormalParameter(clone2(node.documentationComment), clone3(node.metadata), node.keyword, clone2(node.type), node.thisToken, node.period, clone2(node.identifier), clone2(node.parameters));
 
   ForEachStatement visitForEachStatement(ForEachStatement node) {
     DeclaredIdentifier loopVariable = node.loopVariable;
     if (loopVariable == null) {
-      return new ForEachStatement.con2_full(node.forKeyword, node.leftParenthesis, clone2(node.identifier), node.inKeyword, clone2(node.iterator), node.rightParenthesis, clone2(node.body));
+      return new ForEachStatement.con2(node.forKeyword, node.leftParenthesis, clone2(node.identifier), node.inKeyword, clone2(node.iterator), node.rightParenthesis, clone2(node.body));
     }
-    return new ForEachStatement.con1_full(node.forKeyword, node.leftParenthesis, clone2(loopVariable), node.inKeyword, clone2(node.iterator), node.rightParenthesis, clone2(node.body));
+    return new ForEachStatement.con1(node.forKeyword, node.leftParenthesis, clone2(loopVariable), node.inKeyword, clone2(node.iterator), node.rightParenthesis, clone2(node.body));
   }
 
-  FormalParameterList visitFormalParameterList(FormalParameterList node) => new FormalParameterList.full(node.leftParenthesis, clone3(node.parameters), node.leftDelimiter, node.rightDelimiter, node.rightParenthesis);
+  FormalParameterList visitFormalParameterList(FormalParameterList node) => new FormalParameterList(node.leftParenthesis, clone3(node.parameters), node.leftDelimiter, node.rightDelimiter, node.rightParenthesis);
 
-  ForStatement visitForStatement(ForStatement node) => new ForStatement.full(node.forKeyword, node.leftParenthesis, clone2(node.variables), clone2(node.initialization), node.leftSeparator, clone2(node.condition), node.rightSeparator, clone3(node.updaters), node.rightParenthesis, clone2(node.body));
+  ForStatement visitForStatement(ForStatement node) => new ForStatement(node.forKeyword, node.leftParenthesis, clone2(node.variables), clone2(node.initialization), node.leftSeparator, clone2(node.condition), node.rightSeparator, clone3(node.updaters), node.rightParenthesis, clone2(node.body));
 
-  FunctionDeclaration visitFunctionDeclaration(FunctionDeclaration node) => new FunctionDeclaration.full(clone2(node.documentationComment), clone3(node.metadata), node.externalKeyword, clone2(node.returnType), node.propertyKeyword, clone2(node.name), clone2(node.functionExpression));
+  FunctionDeclaration visitFunctionDeclaration(FunctionDeclaration node) => new FunctionDeclaration(clone2(node.documentationComment), clone3(node.metadata), node.externalKeyword, clone2(node.returnType), node.propertyKeyword, clone2(node.name), clone2(node.functionExpression));
 
-  FunctionDeclarationStatement visitFunctionDeclarationStatement(FunctionDeclarationStatement node) => new FunctionDeclarationStatement.full(clone2(node.functionDeclaration));
+  FunctionDeclarationStatement visitFunctionDeclarationStatement(FunctionDeclarationStatement node) => new FunctionDeclarationStatement(clone2(node.functionDeclaration));
 
-  FunctionExpression visitFunctionExpression(FunctionExpression node) => new FunctionExpression.full(clone2(node.parameters), clone2(node.body));
+  FunctionExpression visitFunctionExpression(FunctionExpression node) => new FunctionExpression(clone2(node.parameters), clone2(node.body));
 
-  FunctionExpressionInvocation visitFunctionExpressionInvocation(FunctionExpressionInvocation node) => new FunctionExpressionInvocation.full(clone2(node.function), clone2(node.argumentList));
+  FunctionExpressionInvocation visitFunctionExpressionInvocation(FunctionExpressionInvocation node) => new FunctionExpressionInvocation(clone2(node.function), clone2(node.argumentList));
 
-  FunctionTypeAlias visitFunctionTypeAlias(FunctionTypeAlias node) => new FunctionTypeAlias.full(clone2(node.documentationComment), clone3(node.metadata), node.keyword, clone2(node.returnType), clone2(node.name), clone2(node.typeParameters), clone2(node.parameters), node.semicolon);
+  FunctionTypeAlias visitFunctionTypeAlias(FunctionTypeAlias node) => new FunctionTypeAlias(clone2(node.documentationComment), clone3(node.metadata), node.keyword, clone2(node.returnType), clone2(node.name), clone2(node.typeParameters), clone2(node.parameters), node.semicolon);
 
-  FunctionTypedFormalParameter visitFunctionTypedFormalParameter(FunctionTypedFormalParameter node) => new FunctionTypedFormalParameter.full(clone2(node.documentationComment), clone3(node.metadata), clone2(node.returnType), clone2(node.identifier), clone2(node.parameters));
+  FunctionTypedFormalParameter visitFunctionTypedFormalParameter(FunctionTypedFormalParameter node) => new FunctionTypedFormalParameter(clone2(node.documentationComment), clone3(node.metadata), clone2(node.returnType), clone2(node.identifier), clone2(node.parameters));
 
-  HideCombinator visitHideCombinator(HideCombinator node) => new HideCombinator.full(node.keyword, clone3(node.hiddenNames));
+  HideCombinator visitHideCombinator(HideCombinator node) => new HideCombinator(node.keyword, clone3(node.hiddenNames));
 
-  IfStatement visitIfStatement(IfStatement node) => new IfStatement.full(node.ifKeyword, node.leftParenthesis, clone2(node.condition), node.rightParenthesis, clone2(node.thenStatement), node.elseKeyword, clone2(node.elseStatement));
+  IfStatement visitIfStatement(IfStatement node) => new IfStatement(node.ifKeyword, node.leftParenthesis, clone2(node.condition), node.rightParenthesis, clone2(node.thenStatement), node.elseKeyword, clone2(node.elseStatement));
 
-  ImplementsClause visitImplementsClause(ImplementsClause node) => new ImplementsClause.full(node.keyword, clone3(node.interfaces));
+  ImplementsClause visitImplementsClause(ImplementsClause node) => new ImplementsClause(node.keyword, clone3(node.interfaces));
 
-  ImportDirective visitImportDirective(ImportDirective node) => new ImportDirective.full(clone2(node.documentationComment), clone3(node.metadata), node.keyword, clone2(node.uri), node.asToken, clone2(node.prefix), clone3(node.combinators), node.semicolon);
+  ImportDirective visitImportDirective(ImportDirective node) => new ImportDirective(clone2(node.documentationComment), clone3(node.metadata), node.keyword, clone2(node.uri), node.asToken, clone2(node.prefix), clone3(node.combinators), node.semicolon);
 
   IndexExpression visitIndexExpression(IndexExpression node) {
     Token period = node.period;
     if (period == null) {
-      return new IndexExpression.forTarget_full(clone2(node.target), node.leftBracket, clone2(node.index), node.rightBracket);
+      return new IndexExpression.forTarget(clone2(node.target), node.leftBracket, clone2(node.index), node.rightBracket);
     } else {
-      return new IndexExpression.forCascade_full(period, node.leftBracket, clone2(node.index), node.rightBracket);
+      return new IndexExpression.forCascade(period, node.leftBracket, clone2(node.index), node.rightBracket);
     }
   }
 
-  InstanceCreationExpression visitInstanceCreationExpression(InstanceCreationExpression node) => new InstanceCreationExpression.full(node.keyword, clone2(node.constructorName), clone2(node.argumentList));
+  InstanceCreationExpression visitInstanceCreationExpression(InstanceCreationExpression node) => new InstanceCreationExpression(node.keyword, clone2(node.constructorName), clone2(node.argumentList));
 
-  IntegerLiteral visitIntegerLiteral(IntegerLiteral node) => new IntegerLiteral.full(node.literal, node.value);
+  IntegerLiteral visitIntegerLiteral(IntegerLiteral node) => new IntegerLiteral(node.literal, node.value);
 
-  InterpolationExpression visitInterpolationExpression(InterpolationExpression node) => new InterpolationExpression.full(node.leftBracket, clone2(node.expression), node.rightBracket);
+  InterpolationExpression visitInterpolationExpression(InterpolationExpression node) => new InterpolationExpression(node.leftBracket, clone2(node.expression), node.rightBracket);
 
-  InterpolationString visitInterpolationString(InterpolationString node) => new InterpolationString.full(node.contents, node.value);
+  InterpolationString visitInterpolationString(InterpolationString node) => new InterpolationString(node.contents, node.value);
 
-  IsExpression visitIsExpression(IsExpression node) => new IsExpression.full(clone2(node.expression), node.isOperator, node.notOperator, clone2(node.type));
+  IsExpression visitIsExpression(IsExpression node) => new IsExpression(clone2(node.expression), node.isOperator, node.notOperator, clone2(node.type));
 
-  Label visitLabel(Label node) => new Label.full(clone2(node.label), node.colon);
+  Label visitLabel(Label node) => new Label(clone2(node.label), node.colon);
 
-  LabeledStatement visitLabeledStatement(LabeledStatement node) => new LabeledStatement.full(clone3(node.labels), clone2(node.statement));
+  LabeledStatement visitLabeledStatement(LabeledStatement node) => new LabeledStatement(clone3(node.labels), clone2(node.statement));
 
-  LibraryDirective visitLibraryDirective(LibraryDirective node) => new LibraryDirective.full(clone2(node.documentationComment), clone3(node.metadata), node.libraryToken, clone2(node.name), node.semicolon);
+  LibraryDirective visitLibraryDirective(LibraryDirective node) => new LibraryDirective(clone2(node.documentationComment), clone3(node.metadata), node.libraryToken, clone2(node.name), node.semicolon);
 
-  LibraryIdentifier visitLibraryIdentifier(LibraryIdentifier node) => new LibraryIdentifier.full(clone3(node.components));
+  LibraryIdentifier visitLibraryIdentifier(LibraryIdentifier node) => new LibraryIdentifier(clone3(node.components));
 
-  ListLiteral visitListLiteral(ListLiteral node) => new ListLiteral.full(node.constKeyword, clone2(node.typeArguments), node.leftBracket, clone3(node.elements), node.rightBracket);
+  ListLiteral visitListLiteral(ListLiteral node) => new ListLiteral(node.constKeyword, clone2(node.typeArguments), node.leftBracket, clone3(node.elements), node.rightBracket);
 
-  MapLiteral visitMapLiteral(MapLiteral node) => new MapLiteral.full(node.constKeyword, clone2(node.typeArguments), node.leftBracket, clone3(node.entries), node.rightBracket);
+  MapLiteral visitMapLiteral(MapLiteral node) => new MapLiteral(node.constKeyword, clone2(node.typeArguments), node.leftBracket, clone3(node.entries), node.rightBracket);
 
-  MapLiteralEntry visitMapLiteralEntry(MapLiteralEntry node) => new MapLiteralEntry.full(clone2(node.key), node.separator, clone2(node.value));
+  MapLiteralEntry visitMapLiteralEntry(MapLiteralEntry node) => new MapLiteralEntry(clone2(node.key), node.separator, clone2(node.value));
 
-  MethodDeclaration visitMethodDeclaration(MethodDeclaration node) => new MethodDeclaration.full(clone2(node.documentationComment), clone3(node.metadata), node.externalKeyword, node.modifierKeyword, clone2(node.returnType), node.propertyKeyword, node.operatorKeyword, clone2(node.name), clone2(node.parameters), clone2(node.body));
+  MethodDeclaration visitMethodDeclaration(MethodDeclaration node) => new MethodDeclaration(clone2(node.documentationComment), clone3(node.metadata), node.externalKeyword, node.modifierKeyword, clone2(node.returnType), node.propertyKeyword, node.operatorKeyword, clone2(node.name), clone2(node.parameters), clone2(node.body));
 
-  MethodInvocation visitMethodInvocation(MethodInvocation node) => new MethodInvocation.full(clone2(node.target), node.period, clone2(node.methodName), clone2(node.argumentList));
+  MethodInvocation visitMethodInvocation(MethodInvocation node) => new MethodInvocation(clone2(node.target), node.period, clone2(node.methodName), clone2(node.argumentList));
 
-  NamedExpression visitNamedExpression(NamedExpression node) => new NamedExpression.full(clone2(node.name), clone2(node.expression));
+  NamedExpression visitNamedExpression(NamedExpression node) => new NamedExpression(clone2(node.name), clone2(node.expression));
 
-  ASTNode visitNativeClause(NativeClause node) => new NativeClause.full(node.keyword, clone2(node.name));
+  ASTNode visitNativeClause(NativeClause node) => new NativeClause(node.keyword, clone2(node.name));
 
-  NativeFunctionBody visitNativeFunctionBody(NativeFunctionBody node) => new NativeFunctionBody.full(node.nativeToken, clone2(node.stringLiteral), node.semicolon);
+  NativeFunctionBody visitNativeFunctionBody(NativeFunctionBody node) => new NativeFunctionBody(node.nativeToken, clone2(node.stringLiteral), node.semicolon);
 
-  NullLiteral visitNullLiteral(NullLiteral node) => new NullLiteral.full(node.literal);
+  NullLiteral visitNullLiteral(NullLiteral node) => new NullLiteral(node.literal);
 
-  ParenthesizedExpression visitParenthesizedExpression(ParenthesizedExpression node) => new ParenthesizedExpression.full(node.leftParenthesis, clone2(node.expression), node.rightParenthesis);
+  ParenthesizedExpression visitParenthesizedExpression(ParenthesizedExpression node) => new ParenthesizedExpression(node.leftParenthesis, clone2(node.expression), node.rightParenthesis);
 
-  PartDirective visitPartDirective(PartDirective node) => new PartDirective.full(clone2(node.documentationComment), clone3(node.metadata), node.partToken, clone2(node.uri), node.semicolon);
+  PartDirective visitPartDirective(PartDirective node) => new PartDirective(clone2(node.documentationComment), clone3(node.metadata), node.partToken, clone2(node.uri), node.semicolon);
 
-  PartOfDirective visitPartOfDirective(PartOfDirective node) => new PartOfDirective.full(clone2(node.documentationComment), clone3(node.metadata), node.partToken, node.ofToken, clone2(node.libraryName), node.semicolon);
+  PartOfDirective visitPartOfDirective(PartOfDirective node) => new PartOfDirective(clone2(node.documentationComment), clone3(node.metadata), node.partToken, node.ofToken, clone2(node.libraryName), node.semicolon);
 
-  PostfixExpression visitPostfixExpression(PostfixExpression node) => new PostfixExpression.full(clone2(node.operand), node.operator);
+  PostfixExpression visitPostfixExpression(PostfixExpression node) => new PostfixExpression(clone2(node.operand), node.operator);
 
-  PrefixedIdentifier visitPrefixedIdentifier(PrefixedIdentifier node) => new PrefixedIdentifier.full(clone2(node.prefix), node.period, clone2(node.identifier));
+  PrefixedIdentifier visitPrefixedIdentifier(PrefixedIdentifier node) => new PrefixedIdentifier(clone2(node.prefix), node.period, clone2(node.identifier));
 
-  PrefixExpression visitPrefixExpression(PrefixExpression node) => new PrefixExpression.full(node.operator, clone2(node.operand));
+  PrefixExpression visitPrefixExpression(PrefixExpression node) => new PrefixExpression(node.operator, clone2(node.operand));
 
-  PropertyAccess visitPropertyAccess(PropertyAccess node) => new PropertyAccess.full(clone2(node.target), node.operator, clone2(node.propertyName));
+  PropertyAccess visitPropertyAccess(PropertyAccess node) => new PropertyAccess(clone2(node.target), node.operator, clone2(node.propertyName));
 
-  RedirectingConstructorInvocation visitRedirectingConstructorInvocation(RedirectingConstructorInvocation node) => new RedirectingConstructorInvocation.full(node.keyword, node.period, clone2(node.constructorName), clone2(node.argumentList));
+  RedirectingConstructorInvocation visitRedirectingConstructorInvocation(RedirectingConstructorInvocation node) => new RedirectingConstructorInvocation(node.keyword, node.period, clone2(node.constructorName), clone2(node.argumentList));
 
-  RethrowExpression visitRethrowExpression(RethrowExpression node) => new RethrowExpression.full(node.keyword);
+  RethrowExpression visitRethrowExpression(RethrowExpression node) => new RethrowExpression(node.keyword);
 
-  ReturnStatement visitReturnStatement(ReturnStatement node) => new ReturnStatement.full(node.keyword, clone2(node.expression), node.semicolon);
+  ReturnStatement visitReturnStatement(ReturnStatement node) => new ReturnStatement(node.keyword, clone2(node.expression), node.semicolon);
 
-  ScriptTag visitScriptTag(ScriptTag node) => new ScriptTag.full(node.scriptTag);
+  ScriptTag visitScriptTag(ScriptTag node) => new ScriptTag(node.scriptTag);
 
-  ShowCombinator visitShowCombinator(ShowCombinator node) => new ShowCombinator.full(node.keyword, clone3(node.shownNames));
+  ShowCombinator visitShowCombinator(ShowCombinator node) => new ShowCombinator(node.keyword, clone3(node.shownNames));
 
-  SimpleFormalParameter visitSimpleFormalParameter(SimpleFormalParameter node) => new SimpleFormalParameter.full(clone2(node.documentationComment), clone3(node.metadata), node.keyword, clone2(node.type), clone2(node.identifier));
+  SimpleFormalParameter visitSimpleFormalParameter(SimpleFormalParameter node) => new SimpleFormalParameter(clone2(node.documentationComment), clone3(node.metadata), node.keyword, clone2(node.type), clone2(node.identifier));
 
-  SimpleIdentifier visitSimpleIdentifier(SimpleIdentifier node) => new SimpleIdentifier.full(node.token);
+  SimpleIdentifier visitSimpleIdentifier(SimpleIdentifier node) => new SimpleIdentifier(node.token);
 
-  SimpleStringLiteral visitSimpleStringLiteral(SimpleStringLiteral node) => new SimpleStringLiteral.full(node.literal, node.value);
+  SimpleStringLiteral visitSimpleStringLiteral(SimpleStringLiteral node) => new SimpleStringLiteral(node.literal, node.value);
 
-  StringInterpolation visitStringInterpolation(StringInterpolation node) => new StringInterpolation.full(clone3(node.elements));
+  StringInterpolation visitStringInterpolation(StringInterpolation node) => new StringInterpolation(clone3(node.elements));
 
-  SuperConstructorInvocation visitSuperConstructorInvocation(SuperConstructorInvocation node) => new SuperConstructorInvocation.full(node.keyword, node.period, clone2(node.constructorName), clone2(node.argumentList));
+  SuperConstructorInvocation visitSuperConstructorInvocation(SuperConstructorInvocation node) => new SuperConstructorInvocation(node.keyword, node.period, clone2(node.constructorName), clone2(node.argumentList));
 
-  SuperExpression visitSuperExpression(SuperExpression node) => new SuperExpression.full(node.keyword);
+  SuperExpression visitSuperExpression(SuperExpression node) => new SuperExpression(node.keyword);
 
-  SwitchCase visitSwitchCase(SwitchCase node) => new SwitchCase.full(clone3(node.labels), node.keyword, clone2(node.expression), node.colon, clone3(node.statements));
+  SwitchCase visitSwitchCase(SwitchCase node) => new SwitchCase(clone3(node.labels), node.keyword, clone2(node.expression), node.colon, clone3(node.statements));
 
-  SwitchDefault visitSwitchDefault(SwitchDefault node) => new SwitchDefault.full(clone3(node.labels), node.keyword, node.colon, clone3(node.statements));
+  SwitchDefault visitSwitchDefault(SwitchDefault node) => new SwitchDefault(clone3(node.labels), node.keyword, node.colon, clone3(node.statements));
 
-  SwitchStatement visitSwitchStatement(SwitchStatement node) => new SwitchStatement.full(node.keyword, node.leftParenthesis, clone2(node.expression), node.rightParenthesis, node.leftBracket, clone3(node.members), node.rightBracket);
+  SwitchStatement visitSwitchStatement(SwitchStatement node) => new SwitchStatement(node.keyword, node.leftParenthesis, clone2(node.expression), node.rightParenthesis, node.leftBracket, clone3(node.members), node.rightBracket);
 
-  ASTNode visitSymbolLiteral(SymbolLiteral node) => new SymbolLiteral.full(node.poundSign, node.components);
+  ASTNode visitSymbolLiteral(SymbolLiteral node) => new SymbolLiteral(node.poundSign, node.components);
 
-  ThisExpression visitThisExpression(ThisExpression node) => new ThisExpression.full(node.keyword);
+  ThisExpression visitThisExpression(ThisExpression node) => new ThisExpression(node.keyword);
 
-  ThrowExpression visitThrowExpression(ThrowExpression node) => new ThrowExpression.full(node.keyword, clone2(node.expression));
+  ThrowExpression visitThrowExpression(ThrowExpression node) => new ThrowExpression(node.keyword, clone2(node.expression));
 
-  TopLevelVariableDeclaration visitTopLevelVariableDeclaration(TopLevelVariableDeclaration node) => new TopLevelVariableDeclaration.full(clone2(node.documentationComment), clone3(node.metadata), clone2(node.variables), node.semicolon);
+  TopLevelVariableDeclaration visitTopLevelVariableDeclaration(TopLevelVariableDeclaration node) => new TopLevelVariableDeclaration(clone2(node.documentationComment), clone3(node.metadata), clone2(node.variables), node.semicolon);
 
-  TryStatement visitTryStatement(TryStatement node) => new TryStatement.full(node.tryKeyword, clone2(node.body), clone3(node.catchClauses), node.finallyKeyword, clone2(node.finallyBlock));
+  TryStatement visitTryStatement(TryStatement node) => new TryStatement(node.tryKeyword, clone2(node.body), clone3(node.catchClauses), node.finallyKeyword, clone2(node.finallyBlock));
 
-  TypeArgumentList visitTypeArgumentList(TypeArgumentList node) => new TypeArgumentList.full(node.leftBracket, clone3(node.arguments), node.rightBracket);
+  TypeArgumentList visitTypeArgumentList(TypeArgumentList node) => new TypeArgumentList(node.leftBracket, clone3(node.arguments), node.rightBracket);
 
-  TypeName visitTypeName(TypeName node) => new TypeName.full(clone2(node.name), clone2(node.typeArguments));
+  TypeName visitTypeName(TypeName node) => new TypeName(clone2(node.name), clone2(node.typeArguments));
 
-  TypeParameter visitTypeParameter(TypeParameter node) => new TypeParameter.full(clone2(node.documentationComment), clone3(node.metadata), clone2(node.name), node.keyword, clone2(node.bound));
+  TypeParameter visitTypeParameter(TypeParameter node) => new TypeParameter(clone2(node.documentationComment), clone3(node.metadata), clone2(node.name), node.keyword, clone2(node.bound));
 
-  TypeParameterList visitTypeParameterList(TypeParameterList node) => new TypeParameterList.full(node.leftBracket, clone3(node.typeParameters), node.rightBracket);
+  TypeParameterList visitTypeParameterList(TypeParameterList node) => new TypeParameterList(node.leftBracket, clone3(node.typeParameters), node.rightBracket);
 
-  VariableDeclaration visitVariableDeclaration(VariableDeclaration node) => new VariableDeclaration.full(null, clone3(node.metadata), clone2(node.name), node.equals, clone2(node.initializer));
+  VariableDeclaration visitVariableDeclaration(VariableDeclaration node) => new VariableDeclaration(null, clone3(node.metadata), clone2(node.name), node.equals, clone2(node.initializer));
 
-  VariableDeclarationList visitVariableDeclarationList(VariableDeclarationList node) => new VariableDeclarationList.full(null, clone3(node.metadata), node.keyword, clone2(node.type), clone3(node.variables));
+  VariableDeclarationList visitVariableDeclarationList(VariableDeclarationList node) => new VariableDeclarationList(null, clone3(node.metadata), node.keyword, clone2(node.type), clone3(node.variables));
 
-  VariableDeclarationStatement visitVariableDeclarationStatement(VariableDeclarationStatement node) => new VariableDeclarationStatement.full(clone2(node.variables), node.semicolon);
+  VariableDeclarationStatement visitVariableDeclarationStatement(VariableDeclarationStatement node) => new VariableDeclarationStatement(clone2(node.variables), node.semicolon);
 
-  WhileStatement visitWhileStatement(WhileStatement node) => new WhileStatement.full(node.keyword, node.leftParenthesis, clone2(node.condition), node.rightParenthesis, clone2(node.body));
+  WhileStatement visitWhileStatement(WhileStatement node) => new WhileStatement(node.keyword, node.leftParenthesis, clone2(node.condition), node.rightParenthesis, clone2(node.body));
 
-  WithClause visitWithClause(WithClause node) => new WithClause.full(node.withKeyword, clone3(node.mixinTypes));
+  WithClause visitWithClause(WithClause node) => new WithClause(node.withKeyword, clone3(node.mixinTypes));
 
   ASTNode clone2(ASTNode node) {
     if (node == null) {
@@ -16618,34 +15516,34 @@
     this._tokenMap = tokenMap;
   }
 
-  AdjacentStrings visitAdjacentStrings(AdjacentStrings node) => new AdjacentStrings.full(clone5(node.strings));
+  AdjacentStrings visitAdjacentStrings(AdjacentStrings node) => new AdjacentStrings(clone5(node.strings));
 
   Annotation visitAnnotation(Annotation node) {
-    Annotation copy = new Annotation.full(map(node.atSign), clone4(node.name), map(node.period), clone4(node.constructorName), clone4(node.arguments));
+    Annotation copy = new Annotation(map(node.atSign), clone4(node.name), map(node.period), clone4(node.constructorName), clone4(node.arguments));
     copy.element = node.element;
     return copy;
   }
 
   ArgumentDefinitionTest visitArgumentDefinitionTest(ArgumentDefinitionTest node) {
-    ArgumentDefinitionTest copy = new ArgumentDefinitionTest.full(map(node.question), clone4(node.identifier));
+    ArgumentDefinitionTest copy = new ArgumentDefinitionTest(map(node.question), clone4(node.identifier));
     copy.propagatedType = node.propagatedType;
     copy.staticType = node.staticType;
     return copy;
   }
 
-  ArgumentList visitArgumentList(ArgumentList node) => new ArgumentList.full(map(node.leftParenthesis), clone5(node.arguments), map(node.rightParenthesis));
+  ArgumentList visitArgumentList(ArgumentList node) => new ArgumentList(map(node.leftParenthesis), clone5(node.arguments), map(node.rightParenthesis));
 
   AsExpression visitAsExpression(AsExpression node) {
-    AsExpression copy = new AsExpression.full(clone4(node.expression), map(node.asOperator), clone4(node.type));
+    AsExpression copy = new AsExpression(clone4(node.expression), map(node.asOperator), clone4(node.type));
     copy.propagatedType = node.propagatedType;
     copy.staticType = node.staticType;
     return copy;
   }
 
-  ASTNode visitAssertStatement(AssertStatement node) => new AssertStatement.full(map(node.keyword), map(node.leftParenthesis), clone4(node.condition), map(node.rightParenthesis), map(node.semicolon));
+  ASTNode visitAssertStatement(AssertStatement node) => new AssertStatement(map(node.keyword), map(node.leftParenthesis), clone4(node.condition), map(node.rightParenthesis), map(node.semicolon));
 
   AssignmentExpression visitAssignmentExpression(AssignmentExpression node) {
-    AssignmentExpression copy = new AssignmentExpression.full(clone4(node.leftHandSide), map(node.operator), clone4(node.rightHandSide));
+    AssignmentExpression copy = new AssignmentExpression(clone4(node.leftHandSide), map(node.operator), clone4(node.rightHandSide));
     copy.propagatedElement = node.propagatedElement;
     copy.propagatedType = node.propagatedType;
     copy.staticElement = node.staticElement;
@@ -16654,7 +15552,7 @@
   }
 
   BinaryExpression visitBinaryExpression(BinaryExpression node) {
-    BinaryExpression copy = new BinaryExpression.full(clone4(node.leftOperand), map(node.operator), clone4(node.rightOperand));
+    BinaryExpression copy = new BinaryExpression(clone4(node.leftOperand), map(node.operator), clone4(node.rightOperand));
     copy.propagatedElement = node.propagatedElement;
     copy.propagatedType = node.propagatedType;
     copy.staticElement = node.staticElement;
@@ -16662,35 +15560,35 @@
     return copy;
   }
 
-  Block visitBlock(Block node) => new Block.full(map(node.leftBracket), clone5(node.statements), map(node.rightBracket));
+  Block visitBlock(Block node) => new Block(map(node.leftBracket), clone5(node.statements), map(node.rightBracket));
 
-  BlockFunctionBody visitBlockFunctionBody(BlockFunctionBody node) => new BlockFunctionBody.full(clone4(node.block));
+  BlockFunctionBody visitBlockFunctionBody(BlockFunctionBody node) => new BlockFunctionBody(clone4(node.block));
 
   BooleanLiteral visitBooleanLiteral(BooleanLiteral node) {
-    BooleanLiteral copy = new BooleanLiteral.full(map(node.literal), node.value);
+    BooleanLiteral copy = new BooleanLiteral(map(node.literal), node.value);
     copy.propagatedType = node.propagatedType;
     copy.staticType = node.staticType;
     return copy;
   }
 
-  BreakStatement visitBreakStatement(BreakStatement node) => new BreakStatement.full(map(node.keyword), clone4(node.label), map(node.semicolon));
+  BreakStatement visitBreakStatement(BreakStatement node) => new BreakStatement(map(node.keyword), clone4(node.label), map(node.semicolon));
 
   CascadeExpression visitCascadeExpression(CascadeExpression node) {
-    CascadeExpression copy = new CascadeExpression.full(clone4(node.target), clone5(node.cascadeSections));
+    CascadeExpression copy = new CascadeExpression(clone4(node.target), clone5(node.cascadeSections));
     copy.propagatedType = node.propagatedType;
     copy.staticType = node.staticType;
     return copy;
   }
 
-  CatchClause visitCatchClause(CatchClause node) => new CatchClause.full(map(node.onKeyword), clone4(node.exceptionType), map(node.catchKeyword), map(node.leftParenthesis), clone4(node.exceptionParameter), map(node.comma), clone4(node.stackTraceParameter), map(node.rightParenthesis), clone4(node.body));
+  CatchClause visitCatchClause(CatchClause node) => new CatchClause(map(node.onKeyword), clone4(node.exceptionType), map(node.catchKeyword), map(node.leftParenthesis), clone4(node.exceptionParameter), map(node.comma), clone4(node.stackTraceParameter), map(node.rightParenthesis), clone4(node.body));
 
   ClassDeclaration visitClassDeclaration(ClassDeclaration node) {
-    ClassDeclaration copy = new ClassDeclaration.full(clone4(node.documentationComment), clone5(node.metadata), map(node.abstractKeyword), map(node.classKeyword), clone4(node.name), clone4(node.typeParameters), clone4(node.extendsClause), clone4(node.withClause), clone4(node.implementsClause), map(node.leftBracket), clone5(node.members), map(node.rightBracket));
+    ClassDeclaration copy = new ClassDeclaration(clone4(node.documentationComment), clone5(node.metadata), map(node.abstractKeyword), map(node.classKeyword), clone4(node.name), clone4(node.typeParameters), clone4(node.extendsClause), clone4(node.withClause), clone4(node.implementsClause), map(node.leftBracket), clone5(node.members), map(node.rightBracket));
     copy.nativeClause = clone4(node.nativeClause);
     return copy;
   }
 
-  ClassTypeAlias visitClassTypeAlias(ClassTypeAlias node) => new ClassTypeAlias.full(clone4(node.documentationComment), clone5(node.metadata), map(node.keyword), clone4(node.name), clone4(node.typeParameters), map(node.equals), map(node.abstractKeyword), clone4(node.superclass), clone4(node.withClause), clone4(node.implementsClause), map(node.semicolon));
+  ClassTypeAlias visitClassTypeAlias(ClassTypeAlias node) => new ClassTypeAlias(clone4(node.documentationComment), clone5(node.metadata), map(node.keyword), clone4(node.name), clone4(node.typeParameters), map(node.equals), map(node.abstractKeyword), clone4(node.superclass), clone4(node.withClause), clone4(node.implementsClause), map(node.semicolon));
 
   Comment visitComment(Comment node) {
     if (node.isDocumentation) {
@@ -16701,89 +15599,89 @@
     return Comment.createEndOfLineComment(map2(node.tokens));
   }
 
-  CommentReference visitCommentReference(CommentReference node) => new CommentReference.full(map(node.newKeyword), clone4(node.identifier));
+  CommentReference visitCommentReference(CommentReference node) => new CommentReference(map(node.newKeyword), clone4(node.identifier));
 
   CompilationUnit visitCompilationUnit(CompilationUnit node) {
-    CompilationUnit copy = new CompilationUnit.full(map(node.beginToken), clone4(node.scriptTag), clone5(node.directives), clone5(node.declarations), map(node.endToken));
+    CompilationUnit copy = new CompilationUnit(map(node.beginToken), clone4(node.scriptTag), clone5(node.directives), clone5(node.declarations), map(node.endToken));
     copy.lineInfo = node.lineInfo;
     copy.element = node.element;
     return copy;
   }
 
   ConditionalExpression visitConditionalExpression(ConditionalExpression node) {
-    ConditionalExpression copy = new ConditionalExpression.full(clone4(node.condition), map(node.question), clone4(node.thenExpression), map(node.colon), clone4(node.elseExpression));
+    ConditionalExpression copy = new ConditionalExpression(clone4(node.condition), map(node.question), clone4(node.thenExpression), map(node.colon), clone4(node.elseExpression));
     copy.propagatedType = node.propagatedType;
     copy.staticType = node.staticType;
     return copy;
   }
 
   ConstructorDeclaration visitConstructorDeclaration(ConstructorDeclaration node) {
-    ConstructorDeclaration copy = new ConstructorDeclaration.full(clone4(node.documentationComment), clone5(node.metadata), map(node.externalKeyword), map(node.constKeyword), map(node.factoryKeyword), clone4(node.returnType), map(node.period), clone4(node.name), clone4(node.parameters), map(node.separator), clone5(node.initializers), clone4(node.redirectedConstructor), clone4(node.body));
+    ConstructorDeclaration copy = new ConstructorDeclaration(clone4(node.documentationComment), clone5(node.metadata), map(node.externalKeyword), map(node.constKeyword), map(node.factoryKeyword), clone4(node.returnType), map(node.period), clone4(node.name), clone4(node.parameters), map(node.separator), clone5(node.initializers), clone4(node.redirectedConstructor), clone4(node.body));
     copy.element = node.element;
     return copy;
   }
 
-  ConstructorFieldInitializer visitConstructorFieldInitializer(ConstructorFieldInitializer node) => new ConstructorFieldInitializer.full(map(node.keyword), map(node.period), clone4(node.fieldName), map(node.equals), clone4(node.expression));
+  ConstructorFieldInitializer visitConstructorFieldInitializer(ConstructorFieldInitializer node) => new ConstructorFieldInitializer(map(node.keyword), map(node.period), clone4(node.fieldName), map(node.equals), clone4(node.expression));
 
   ConstructorName visitConstructorName(ConstructorName node) {
-    ConstructorName copy = new ConstructorName.full(clone4(node.type), map(node.period), clone4(node.name));
+    ConstructorName copy = new ConstructorName(clone4(node.type), map(node.period), clone4(node.name));
     copy.staticElement = node.staticElement;
     return copy;
   }
 
-  ContinueStatement visitContinueStatement(ContinueStatement node) => new ContinueStatement.full(map(node.keyword), clone4(node.label), map(node.semicolon));
+  ContinueStatement visitContinueStatement(ContinueStatement node) => new ContinueStatement(map(node.keyword), clone4(node.label), map(node.semicolon));
 
-  DeclaredIdentifier visitDeclaredIdentifier(DeclaredIdentifier node) => new DeclaredIdentifier.full(clone4(node.documentationComment), clone5(node.metadata), map(node.keyword), clone4(node.type), clone4(node.identifier));
+  DeclaredIdentifier visitDeclaredIdentifier(DeclaredIdentifier node) => new DeclaredIdentifier(clone4(node.documentationComment), clone5(node.metadata), map(node.keyword), clone4(node.type), clone4(node.identifier));
 
-  DefaultFormalParameter visitDefaultFormalParameter(DefaultFormalParameter node) => new DefaultFormalParameter.full(clone4(node.parameter), node.kind, map(node.separator), clone4(node.defaultValue));
+  DefaultFormalParameter visitDefaultFormalParameter(DefaultFormalParameter node) => new DefaultFormalParameter(clone4(node.parameter), node.kind, map(node.separator), clone4(node.defaultValue));
 
-  DoStatement visitDoStatement(DoStatement node) => new DoStatement.full(map(node.doKeyword), clone4(node.body), map(node.whileKeyword), map(node.leftParenthesis), clone4(node.condition), map(node.rightParenthesis), map(node.semicolon));
+  DoStatement visitDoStatement(DoStatement node) => new DoStatement(map(node.doKeyword), clone4(node.body), map(node.whileKeyword), map(node.leftParenthesis), clone4(node.condition), map(node.rightParenthesis), map(node.semicolon));
 
   DoubleLiteral visitDoubleLiteral(DoubleLiteral node) {
-    DoubleLiteral copy = new DoubleLiteral.full(map(node.literal), node.value);
+    DoubleLiteral copy = new DoubleLiteral(map(node.literal), node.value);
     copy.propagatedType = node.propagatedType;
     copy.staticType = node.staticType;
     return copy;
   }
 
-  EmptyFunctionBody visitEmptyFunctionBody(EmptyFunctionBody node) => new EmptyFunctionBody.full(map(node.semicolon));
+  EmptyFunctionBody visitEmptyFunctionBody(EmptyFunctionBody node) => new EmptyFunctionBody(map(node.semicolon));
 
-  EmptyStatement visitEmptyStatement(EmptyStatement node) => new EmptyStatement.full(map(node.semicolon));
+  EmptyStatement visitEmptyStatement(EmptyStatement node) => new EmptyStatement(map(node.semicolon));
 
   ExportDirective visitExportDirective(ExportDirective node) {
-    ExportDirective copy = new ExportDirective.full(clone4(node.documentationComment), clone5(node.metadata), map(node.keyword), clone4(node.uri), clone5(node.combinators), map(node.semicolon));
+    ExportDirective copy = new ExportDirective(clone4(node.documentationComment), clone5(node.metadata), map(node.keyword), clone4(node.uri), clone5(node.combinators), map(node.semicolon));
     copy.element = node.element;
     return copy;
   }
 
-  ExpressionFunctionBody visitExpressionFunctionBody(ExpressionFunctionBody node) => new ExpressionFunctionBody.full(map(node.functionDefinition), clone4(node.expression), map(node.semicolon));
+  ExpressionFunctionBody visitExpressionFunctionBody(ExpressionFunctionBody node) => new ExpressionFunctionBody(map(node.functionDefinition), clone4(node.expression), map(node.semicolon));
 
-  ExpressionStatement visitExpressionStatement(ExpressionStatement node) => new ExpressionStatement.full(clone4(node.expression), map(node.semicolon));
+  ExpressionStatement visitExpressionStatement(ExpressionStatement node) => new ExpressionStatement(clone4(node.expression), map(node.semicolon));
 
-  ExtendsClause visitExtendsClause(ExtendsClause node) => new ExtendsClause.full(map(node.keyword), clone4(node.superclass));
+  ExtendsClause visitExtendsClause(ExtendsClause node) => new ExtendsClause(map(node.keyword), clone4(node.superclass));
 
-  FieldDeclaration visitFieldDeclaration(FieldDeclaration node) => new FieldDeclaration.full(clone4(node.documentationComment), clone5(node.metadata), map(node.staticKeyword), clone4(node.fields), map(node.semicolon));
+  FieldDeclaration visitFieldDeclaration(FieldDeclaration node) => new FieldDeclaration(clone4(node.documentationComment), clone5(node.metadata), map(node.staticKeyword), clone4(node.fields), map(node.semicolon));
 
-  FieldFormalParameter visitFieldFormalParameter(FieldFormalParameter node) => new FieldFormalParameter.full(clone4(node.documentationComment), clone5(node.metadata), map(node.keyword), clone4(node.type), map(node.thisToken), map(node.period), clone4(node.identifier), clone4(node.parameters));
+  FieldFormalParameter visitFieldFormalParameter(FieldFormalParameter node) => new FieldFormalParameter(clone4(node.documentationComment), clone5(node.metadata), map(node.keyword), clone4(node.type), map(node.thisToken), map(node.period), clone4(node.identifier), clone4(node.parameters));
 
   ForEachStatement visitForEachStatement(ForEachStatement node) {
     DeclaredIdentifier loopVariable = node.loopVariable;
     if (loopVariable == null) {
-      return new ForEachStatement.con2_full(map(node.forKeyword), map(node.leftParenthesis), clone4(node.identifier), map(node.inKeyword), clone4(node.iterator), map(node.rightParenthesis), clone4(node.body));
+      return new ForEachStatement.con2(map(node.forKeyword), map(node.leftParenthesis), clone4(node.identifier), map(node.inKeyword), clone4(node.iterator), map(node.rightParenthesis), clone4(node.body));
     }
-    return new ForEachStatement.con1_full(map(node.forKeyword), map(node.leftParenthesis), clone4(loopVariable), map(node.inKeyword), clone4(node.iterator), map(node.rightParenthesis), clone4(node.body));
+    return new ForEachStatement.con1(map(node.forKeyword), map(node.leftParenthesis), clone4(loopVariable), map(node.inKeyword), clone4(node.iterator), map(node.rightParenthesis), clone4(node.body));
   }
 
-  FormalParameterList visitFormalParameterList(FormalParameterList node) => new FormalParameterList.full(map(node.leftParenthesis), clone5(node.parameters), map(node.leftDelimiter), map(node.rightDelimiter), map(node.rightParenthesis));
+  FormalParameterList visitFormalParameterList(FormalParameterList node) => new FormalParameterList(map(node.leftParenthesis), clone5(node.parameters), map(node.leftDelimiter), map(node.rightDelimiter), map(node.rightParenthesis));
 
-  ForStatement visitForStatement(ForStatement node) => new ForStatement.full(map(node.forKeyword), map(node.leftParenthesis), clone4(node.variables), clone4(node.initialization), map(node.leftSeparator), clone4(node.condition), map(node.rightSeparator), clone5(node.updaters), map(node.rightParenthesis), clone4(node.body));
+  ForStatement visitForStatement(ForStatement node) => new ForStatement(map(node.forKeyword), map(node.leftParenthesis), clone4(node.variables), clone4(node.initialization), map(node.leftSeparator), clone4(node.condition), map(node.rightSeparator), clone5(node.updaters), map(node.rightParenthesis), clone4(node.body));
 
-  FunctionDeclaration visitFunctionDeclaration(FunctionDeclaration node) => new FunctionDeclaration.full(clone4(node.documentationComment), clone5(node.metadata), map(node.externalKeyword), clone4(node.returnType), map(node.propertyKeyword), clone4(node.name), clone4(node.functionExpression));
+  FunctionDeclaration visitFunctionDeclaration(FunctionDeclaration node) => new FunctionDeclaration(clone4(node.documentationComment), clone5(node.metadata), map(node.externalKeyword), clone4(node.returnType), map(node.propertyKeyword), clone4(node.name), clone4(node.functionExpression));
 
-  FunctionDeclarationStatement visitFunctionDeclarationStatement(FunctionDeclarationStatement node) => new FunctionDeclarationStatement.full(clone4(node.functionDeclaration));
+  FunctionDeclarationStatement visitFunctionDeclarationStatement(FunctionDeclarationStatement node) => new FunctionDeclarationStatement(clone4(node.functionDeclaration));
 
   FunctionExpression visitFunctionExpression(FunctionExpression node) {
-    FunctionExpression copy = new FunctionExpression.full(clone4(node.parameters), clone4(node.body));
+    FunctionExpression copy = new FunctionExpression(clone4(node.parameters), clone4(node.body));
     copy.element = node.element;
     copy.propagatedType = node.propagatedType;
     copy.staticType = node.staticType;
@@ -16791,7 +15689,7 @@
   }
 
   FunctionExpressionInvocation visitFunctionExpressionInvocation(FunctionExpressionInvocation node) {
-    FunctionExpressionInvocation copy = new FunctionExpressionInvocation.full(clone4(node.function), clone4(node.argumentList));
+    FunctionExpressionInvocation copy = new FunctionExpressionInvocation(clone4(node.function), clone4(node.argumentList));
     copy.propagatedElement = node.propagatedElement;
     copy.propagatedType = node.propagatedType;
     copy.staticElement = node.staticElement;
@@ -16799,25 +15697,25 @@
     return copy;
   }
 
-  FunctionTypeAlias visitFunctionTypeAlias(FunctionTypeAlias node) => new FunctionTypeAlias.full(clone4(node.documentationComment), clone5(node.metadata), map(node.keyword), clone4(node.returnType), clone4(node.name), clone4(node.typeParameters), clone4(node.parameters), map(node.semicolon));
+  FunctionTypeAlias visitFunctionTypeAlias(FunctionTypeAlias node) => new FunctionTypeAlias(clone4(node.documentationComment), clone5(node.metadata), map(node.keyword), clone4(node.returnType), clone4(node.name), clone4(node.typeParameters), clone4(node.parameters), map(node.semicolon));
 
-  FunctionTypedFormalParameter visitFunctionTypedFormalParameter(FunctionTypedFormalParameter node) => new FunctionTypedFormalParameter.full(clone4(node.documentationComment), clone5(node.metadata), clone4(node.returnType), clone4(node.identifier), clone4(node.parameters));
+  FunctionTypedFormalParameter visitFunctionTypedFormalParameter(FunctionTypedFormalParameter node) => new FunctionTypedFormalParameter(clone4(node.documentationComment), clone5(node.metadata), clone4(node.returnType), clone4(node.identifier), clone4(node.parameters));
 
-  HideCombinator visitHideCombinator(HideCombinator node) => new HideCombinator.full(map(node.keyword), clone5(node.hiddenNames));
+  HideCombinator visitHideCombinator(HideCombinator node) => new HideCombinator(map(node.keyword), clone5(node.hiddenNames));
 
-  IfStatement visitIfStatement(IfStatement node) => new IfStatement.full(map(node.ifKeyword), map(node.leftParenthesis), clone4(node.condition), map(node.rightParenthesis), clone4(node.thenStatement), map(node.elseKeyword), clone4(node.elseStatement));
+  IfStatement visitIfStatement(IfStatement node) => new IfStatement(map(node.ifKeyword), map(node.leftParenthesis), clone4(node.condition), map(node.rightParenthesis), clone4(node.thenStatement), map(node.elseKeyword), clone4(node.elseStatement));
 
-  ImplementsClause visitImplementsClause(ImplementsClause node) => new ImplementsClause.full(map(node.keyword), clone5(node.interfaces));
+  ImplementsClause visitImplementsClause(ImplementsClause node) => new ImplementsClause(map(node.keyword), clone5(node.interfaces));
 
-  ImportDirective visitImportDirective(ImportDirective node) => new ImportDirective.full(clone4(node.documentationComment), clone5(node.metadata), map(node.keyword), clone4(node.uri), map(node.asToken), clone4(node.prefix), clone5(node.combinators), map(node.semicolon));
+  ImportDirective visitImportDirective(ImportDirective node) => new ImportDirective(clone4(node.documentationComment), clone5(node.metadata), map(node.keyword), clone4(node.uri), map(node.asToken), clone4(node.prefix), clone5(node.combinators), map(node.semicolon));
 
   IndexExpression visitIndexExpression(IndexExpression node) {
     Token period = map(node.period);
     IndexExpression copy;
     if (period == null) {
-      copy = new IndexExpression.forTarget_full(clone4(node.target), map(node.leftBracket), clone4(node.index), map(node.rightBracket));
+      copy = new IndexExpression.forTarget(clone4(node.target), map(node.leftBracket), clone4(node.index), map(node.rightBracket));
     } else {
-      copy = new IndexExpression.forCascade_full(period, map(node.leftBracket), clone4(node.index), map(node.rightBracket));
+      copy = new IndexExpression.forCascade(period, map(node.leftBracket), clone4(node.index), map(node.rightBracket));
     }
     copy.auxiliaryElements = node.auxiliaryElements;
     copy.propagatedElement = node.propagatedElement;
@@ -16828,7 +15726,7 @@
   }
 
   InstanceCreationExpression visitInstanceCreationExpression(InstanceCreationExpression node) {
-    InstanceCreationExpression copy = new InstanceCreationExpression.full(map(node.keyword), clone4(node.constructorName), clone4(node.argumentList));
+    InstanceCreationExpression copy = new InstanceCreationExpression(map(node.keyword), clone4(node.constructorName), clone4(node.argumentList));
     copy.propagatedType = node.propagatedType;
     copy.staticElement = node.staticElement;
     copy.staticType = node.staticType;
@@ -16836,100 +15734,100 @@
   }
 
   IntegerLiteral visitIntegerLiteral(IntegerLiteral node) {
-    IntegerLiteral copy = new IntegerLiteral.full(map(node.literal), node.value);
+    IntegerLiteral copy = new IntegerLiteral(map(node.literal), node.value);
     copy.propagatedType = node.propagatedType;
     copy.staticType = node.staticType;
     return copy;
   }
 
-  InterpolationExpression visitInterpolationExpression(InterpolationExpression node) => new InterpolationExpression.full(map(node.leftBracket), clone4(node.expression), map(node.rightBracket));
+  InterpolationExpression visitInterpolationExpression(InterpolationExpression node) => new InterpolationExpression(map(node.leftBracket), clone4(node.expression), map(node.rightBracket));
 
-  InterpolationString visitInterpolationString(InterpolationString node) => new InterpolationString.full(map(node.contents), node.value);
+  InterpolationString visitInterpolationString(InterpolationString node) => new InterpolationString(map(node.contents), node.value);
 
   IsExpression visitIsExpression(IsExpression node) {
-    IsExpression copy = new IsExpression.full(clone4(node.expression), map(node.isOperator), map(node.notOperator), clone4(node.type));
+    IsExpression copy = new IsExpression(clone4(node.expression), map(node.isOperator), map(node.notOperator), clone4(node.type));
     copy.propagatedType = node.propagatedType;
     copy.staticType = node.staticType;
     return copy;
   }
 
-  Label visitLabel(Label node) => new Label.full(clone4(node.label), map(node.colon));
+  Label visitLabel(Label node) => new Label(clone4(node.label), map(node.colon));
 
-  LabeledStatement visitLabeledStatement(LabeledStatement node) => new LabeledStatement.full(clone5(node.labels), clone4(node.statement));
+  LabeledStatement visitLabeledStatement(LabeledStatement node) => new LabeledStatement(clone5(node.labels), clone4(node.statement));
 
-  LibraryDirective visitLibraryDirective(LibraryDirective node) => new LibraryDirective.full(clone4(node.documentationComment), clone5(node.metadata), map(node.libraryToken), clone4(node.name), map(node.semicolon));
+  LibraryDirective visitLibraryDirective(LibraryDirective node) => new LibraryDirective(clone4(node.documentationComment), clone5(node.metadata), map(node.libraryToken), clone4(node.name), map(node.semicolon));
 
   LibraryIdentifier visitLibraryIdentifier(LibraryIdentifier node) {
-    LibraryIdentifier copy = new LibraryIdentifier.full(clone5(node.components));
+    LibraryIdentifier copy = new LibraryIdentifier(clone5(node.components));
     copy.propagatedType = node.propagatedType;
     copy.staticType = node.staticType;
     return copy;
   }
 
   ListLiteral visitListLiteral(ListLiteral node) {
-    ListLiteral copy = new ListLiteral.full(map(node.constKeyword), clone4(node.typeArguments), map(node.leftBracket), clone5(node.elements), map(node.rightBracket));
+    ListLiteral copy = new ListLiteral(map(node.constKeyword), clone4(node.typeArguments), map(node.leftBracket), clone5(node.elements), map(node.rightBracket));
     copy.propagatedType = node.propagatedType;
     copy.staticType = node.staticType;
     return copy;
   }
 
   MapLiteral visitMapLiteral(MapLiteral node) {
-    MapLiteral copy = new MapLiteral.full(map(node.constKeyword), clone4(node.typeArguments), map(node.leftBracket), clone5(node.entries), map(node.rightBracket));
+    MapLiteral copy = new MapLiteral(map(node.constKeyword), clone4(node.typeArguments), map(node.leftBracket), clone5(node.entries), map(node.rightBracket));
     copy.propagatedType = node.propagatedType;
     copy.staticType = node.staticType;
     return copy;
   }
 
-  MapLiteralEntry visitMapLiteralEntry(MapLiteralEntry node) => new MapLiteralEntry.full(clone4(node.key), map(node.separator), clone4(node.value));
+  MapLiteralEntry visitMapLiteralEntry(MapLiteralEntry node) => new MapLiteralEntry(clone4(node.key), map(node.separator), clone4(node.value));
 
-  MethodDeclaration visitMethodDeclaration(MethodDeclaration node) => new MethodDeclaration.full(clone4(node.documentationComment), clone5(node.metadata), map(node.externalKeyword), map(node.modifierKeyword), clone4(node.returnType), map(node.propertyKeyword), map(node.operatorKeyword), clone4(node.name), clone4(node.parameters), clone4(node.body));
+  MethodDeclaration visitMethodDeclaration(MethodDeclaration node) => new MethodDeclaration(clone4(node.documentationComment), clone5(node.metadata), map(node.externalKeyword), map(node.modifierKeyword), clone4(node.returnType), map(node.propertyKeyword), map(node.operatorKeyword), clone4(node.name), clone4(node.parameters), clone4(node.body));
 
   MethodInvocation visitMethodInvocation(MethodInvocation node) {
-    MethodInvocation copy = new MethodInvocation.full(clone4(node.target), map(node.period), clone4(node.methodName), clone4(node.argumentList));
+    MethodInvocation copy = new MethodInvocation(clone4(node.target), map(node.period), clone4(node.methodName), clone4(node.argumentList));
     copy.propagatedType = node.propagatedType;
     copy.staticType = node.staticType;
     return copy;
   }
 
   NamedExpression visitNamedExpression(NamedExpression node) {
-    NamedExpression copy = new NamedExpression.full(clone4(node.name), clone4(node.expression));
+    NamedExpression copy = new NamedExpression(clone4(node.name), clone4(node.expression));
     copy.propagatedType = node.propagatedType;
     copy.staticType = node.staticType;
     return copy;
   }
 
-  ASTNode visitNativeClause(NativeClause node) => new NativeClause.full(map(node.keyword), clone4(node.name));
+  ASTNode visitNativeClause(NativeClause node) => new NativeClause(map(node.keyword), clone4(node.name));
 
-  NativeFunctionBody visitNativeFunctionBody(NativeFunctionBody node) => new NativeFunctionBody.full(map(node.nativeToken), clone4(node.stringLiteral), map(node.semicolon));
+  NativeFunctionBody visitNativeFunctionBody(NativeFunctionBody node) => new NativeFunctionBody(map(node.nativeToken), clone4(node.stringLiteral), map(node.semicolon));
 
   NullLiteral visitNullLiteral(NullLiteral node) {
-    NullLiteral copy = new NullLiteral.full(map(node.literal));
+    NullLiteral copy = new NullLiteral(map(node.literal));
     copy.propagatedType = node.propagatedType;
     copy.staticType = node.staticType;
     return copy;
   }
 
   ParenthesizedExpression visitParenthesizedExpression(ParenthesizedExpression node) {
-    ParenthesizedExpression copy = new ParenthesizedExpression.full(map(node.leftParenthesis), clone4(node.expression), map(node.rightParenthesis));
+    ParenthesizedExpression copy = new ParenthesizedExpression(map(node.leftParenthesis), clone4(node.expression), map(node.rightParenthesis));
     copy.propagatedType = node.propagatedType;
     copy.staticType = node.staticType;
     return copy;
   }
 
   PartDirective visitPartDirective(PartDirective node) {
-    PartDirective copy = new PartDirective.full(clone4(node.documentationComment), clone5(node.metadata), map(node.partToken), clone4(node.uri), map(node.semicolon));
+    PartDirective copy = new PartDirective(clone4(node.documentationComment), clone5(node.metadata), map(node.partToken), clone4(node.uri), map(node.semicolon));
     copy.element = node.element;
     return copy;
   }
 
   PartOfDirective visitPartOfDirective(PartOfDirective node) {
-    PartOfDirective copy = new PartOfDirective.full(clone4(node.documentationComment), clone5(node.metadata), map(node.partToken), map(node.ofToken), clone4(node.libraryName), map(node.semicolon));
+    PartOfDirective copy = new PartOfDirective(clone4(node.documentationComment), clone5(node.metadata), map(node.partToken), map(node.ofToken), clone4(node.libraryName), map(node.semicolon));
     copy.element = node.element;
     return copy;
   }
 
   PostfixExpression visitPostfixExpression(PostfixExpression node) {
-    PostfixExpression copy = new PostfixExpression.full(clone4(node.operand), map(node.operator));
+    PostfixExpression copy = new PostfixExpression(clone4(node.operand), map(node.operator));
     copy.propagatedElement = node.propagatedElement;
     copy.propagatedType = node.propagatedType;
     copy.staticElement = node.staticElement;
@@ -16938,14 +15836,14 @@
   }
 
   PrefixedIdentifier visitPrefixedIdentifier(PrefixedIdentifier node) {
-    PrefixedIdentifier copy = new PrefixedIdentifier.full(clone4(node.prefix), map(node.period), clone4(node.identifier));
+    PrefixedIdentifier copy = new PrefixedIdentifier(clone4(node.prefix), map(node.period), clone4(node.identifier));
     copy.propagatedType = node.propagatedType;
     copy.staticType = node.staticType;
     return copy;
   }
 
   PrefixExpression visitPrefixExpression(PrefixExpression node) {
-    PrefixExpression copy = new PrefixExpression.full(map(node.operator), clone4(node.operand));
+    PrefixExpression copy = new PrefixExpression(map(node.operator), clone4(node.operand));
     copy.propagatedElement = node.propagatedElement;
     copy.propagatedType = node.propagatedType;
     copy.staticElement = node.staticElement;
@@ -16954,35 +15852,39 @@
   }
 
   PropertyAccess visitPropertyAccess(PropertyAccess node) {
-    PropertyAccess copy = new PropertyAccess.full(clone4(node.target), map(node.operator), clone4(node.propertyName));
+    PropertyAccess copy = new PropertyAccess(clone4(node.target), map(node.operator), clone4(node.propertyName));
     copy.propagatedType = node.propagatedType;
     copy.staticType = node.staticType;
     return copy;
   }
 
   RedirectingConstructorInvocation visitRedirectingConstructorInvocation(RedirectingConstructorInvocation node) {
-    RedirectingConstructorInvocation copy = new RedirectingConstructorInvocation.full(map(node.keyword), map(node.period), clone4(node.constructorName), clone4(node.argumentList));
+    RedirectingConstructorInvocation copy = new RedirectingConstructorInvocation(map(node.keyword), map(node.period), clone4(node.constructorName), clone4(node.argumentList));
     copy.staticElement = node.staticElement;
     return copy;
   }
 
   RethrowExpression visitRethrowExpression(RethrowExpression node) {
-    RethrowExpression copy = new RethrowExpression.full(map(node.keyword));
+    RethrowExpression copy = new RethrowExpression(map(node.keyword));
     copy.propagatedType = node.propagatedType;
     copy.staticType = node.staticType;
     return copy;
   }
 
-  ReturnStatement visitReturnStatement(ReturnStatement node) => new ReturnStatement.full(map(node.keyword), clone4(node.expression), map(node.semicolon));
+  ReturnStatement visitReturnStatement(ReturnStatement node) => new ReturnStatement(map(node.keyword), clone4(node.expression), map(node.semicolon));
 
-  ScriptTag visitScriptTag(ScriptTag node) => new ScriptTag.full(map(node.scriptTag));
+  ScriptTag visitScriptTag(ScriptTag node) => new ScriptTag(map(node.scriptTag));
 
-  ShowCombinator visitShowCombinator(ShowCombinator node) => new ShowCombinator.full(map(node.keyword), clone5(node.shownNames));
+  ShowCombinator visitShowCombinator(ShowCombinator node) => new ShowCombinator(map(node.keyword), clone5(node.shownNames));
 
-  SimpleFormalParameter visitSimpleFormalParameter(SimpleFormalParameter node) => new SimpleFormalParameter.full(clone4(node.documentationComment), clone5(node.metadata), map(node.keyword), clone4(node.type), clone4(node.identifier));
+  SimpleFormalParameter visitSimpleFormalParameter(SimpleFormalParameter node) => new SimpleFormalParameter(clone4(node.documentationComment), clone5(node.metadata), map(node.keyword), clone4(node.type), clone4(node.identifier));
 
   SimpleIdentifier visitSimpleIdentifier(SimpleIdentifier node) {
-    SimpleIdentifier copy = new SimpleIdentifier.full(map(node.token));
+    Token mappedToken = map(node.token);
+    if (mappedToken == null) {
+      mappedToken = node.token;
+    }
+    SimpleIdentifier copy = new SimpleIdentifier(mappedToken);
     copy.auxiliaryElements = node.auxiliaryElements;
     copy.propagatedElement = node.propagatedElement;
     copy.propagatedType = node.propagatedType;
@@ -16992,84 +15894,84 @@
   }
 
   SimpleStringLiteral visitSimpleStringLiteral(SimpleStringLiteral node) {
-    SimpleStringLiteral copy = new SimpleStringLiteral.full(map(node.literal), node.value);
+    SimpleStringLiteral copy = new SimpleStringLiteral(map(node.literal), node.value);
     copy.propagatedType = node.propagatedType;
     copy.staticType = node.staticType;
     return copy;
   }
 
   StringInterpolation visitStringInterpolation(StringInterpolation node) {
-    StringInterpolation copy = new StringInterpolation.full(clone5(node.elements));
+    StringInterpolation copy = new StringInterpolation(clone5(node.elements));
     copy.propagatedType = node.propagatedType;
     copy.staticType = node.staticType;
     return copy;
   }
 
   SuperConstructorInvocation visitSuperConstructorInvocation(SuperConstructorInvocation node) {
-    SuperConstructorInvocation copy = new SuperConstructorInvocation.full(map(node.keyword), map(node.period), clone4(node.constructorName), clone4(node.argumentList));
+    SuperConstructorInvocation copy = new SuperConstructorInvocation(map(node.keyword), map(node.period), clone4(node.constructorName), clone4(node.argumentList));
     copy.staticElement = node.staticElement;
     return copy;
   }
 
   SuperExpression visitSuperExpression(SuperExpression node) {
-    SuperExpression copy = new SuperExpression.full(map(node.keyword));
+    SuperExpression copy = new SuperExpression(map(node.keyword));
     copy.propagatedType = node.propagatedType;
     copy.staticType = node.staticType;
     return copy;
   }
 
-  SwitchCase visitSwitchCase(SwitchCase node) => new SwitchCase.full(clone5(node.labels), map(node.keyword), clone4(node.expression), map(node.colon), clone5(node.statements));
+  SwitchCase visitSwitchCase(SwitchCase node) => new SwitchCase(clone5(node.labels), map(node.keyword), clone4(node.expression), map(node.colon), clone5(node.statements));
 
-  SwitchDefault visitSwitchDefault(SwitchDefault node) => new SwitchDefault.full(clone5(node.labels), map(node.keyword), map(node.colon), clone5(node.statements));
+  SwitchDefault visitSwitchDefault(SwitchDefault node) => new SwitchDefault(clone5(node.labels), map(node.keyword), map(node.colon), clone5(node.statements));
 
-  SwitchStatement visitSwitchStatement(SwitchStatement node) => new SwitchStatement.full(map(node.keyword), map(node.leftParenthesis), clone4(node.expression), map(node.rightParenthesis), map(node.leftBracket), clone5(node.members), map(node.rightBracket));
+  SwitchStatement visitSwitchStatement(SwitchStatement node) => new SwitchStatement(map(node.keyword), map(node.leftParenthesis), clone4(node.expression), map(node.rightParenthesis), map(node.leftBracket), clone5(node.members), map(node.rightBracket));
 
   ASTNode visitSymbolLiteral(SymbolLiteral node) {
-    SymbolLiteral copy = new SymbolLiteral.full(map(node.poundSign), map2(node.components));
+    SymbolLiteral copy = new SymbolLiteral(map(node.poundSign), map2(node.components));
     copy.propagatedType = node.propagatedType;
     copy.staticType = node.staticType;
     return copy;
   }
 
   ThisExpression visitThisExpression(ThisExpression node) {
-    ThisExpression copy = new ThisExpression.full(map(node.keyword));
+    ThisExpression copy = new ThisExpression(map(node.keyword));
     copy.propagatedType = node.propagatedType;
     copy.staticType = node.staticType;
     return copy;
   }
 
   ThrowExpression visitThrowExpression(ThrowExpression node) {
-    ThrowExpression copy = new ThrowExpression.full(map(node.keyword), clone4(node.expression));
+    ThrowExpression copy = new ThrowExpression(map(node.keyword), clone4(node.expression));
     copy.propagatedType = node.propagatedType;
     copy.staticType = node.staticType;
     return copy;
   }
 
-  TopLevelVariableDeclaration visitTopLevelVariableDeclaration(TopLevelVariableDeclaration node) => new TopLevelVariableDeclaration.full(clone4(node.documentationComment), clone5(node.metadata), clone4(node.variables), map(node.semicolon));
+  TopLevelVariableDeclaration visitTopLevelVariableDeclaration(TopLevelVariableDeclaration node) => new TopLevelVariableDeclaration(clone4(node.documentationComment), clone5(node.metadata), clone4(node.variables), map(node.semicolon));
 
-  TryStatement visitTryStatement(TryStatement node) => new TryStatement.full(map(node.tryKeyword), clone4(node.body), clone5(node.catchClauses), map(node.finallyKeyword), clone4(node.finallyBlock));
+  TryStatement visitTryStatement(TryStatement node) => new TryStatement(map(node.tryKeyword), clone4(node.body), clone5(node.catchClauses), map(node.finallyKeyword), clone4(node.finallyBlock));
 
-  TypeArgumentList visitTypeArgumentList(TypeArgumentList node) => new TypeArgumentList.full(map(node.leftBracket), clone5(node.arguments), map(node.rightBracket));
+  TypeArgumentList visitTypeArgumentList(TypeArgumentList node) => new TypeArgumentList(map(node.leftBracket), clone5(node.arguments), map(node.rightBracket));
 
   TypeName visitTypeName(TypeName node) {
-    TypeName copy = new TypeName.full(clone4(node.name), clone4(node.typeArguments));
+    TypeName copy = new TypeName(clone4(node.name), clone4(node.typeArguments));
     copy.type = node.type;
     return copy;
   }
 
-  TypeParameter visitTypeParameter(TypeParameter node) => new TypeParameter.full(clone4(node.documentationComment), clone5(node.metadata), clone4(node.name), map(node.keyword), clone4(node.bound));
+  TypeParameter visitTypeParameter(TypeParameter node) => new TypeParameter(clone4(node.documentationComment), clone5(node.metadata), clone4(node.name), map(node.keyword), clone4(node.bound));
 
-  TypeParameterList visitTypeParameterList(TypeParameterList node) => new TypeParameterList.full(map(node.leftBracket), clone5(node.typeParameters), map(node.rightBracket));
+  TypeParameterList visitTypeParameterList(TypeParameterList node) => new TypeParameterList(map(node.leftBracket), clone5(node.typeParameters), map(node.rightBracket));
 
-  VariableDeclaration visitVariableDeclaration(VariableDeclaration node) => new VariableDeclaration.full(null, clone5(node.metadata), clone4(node.name), map(node.equals), clone4(node.initializer));
+  VariableDeclaration visitVariableDeclaration(VariableDeclaration node) => new VariableDeclaration(null, clone5(node.metadata), clone4(node.name), map(node.equals), clone4(node.initializer));
 
-  VariableDeclarationList visitVariableDeclarationList(VariableDeclarationList node) => new VariableDeclarationList.full(null, clone5(node.metadata), map(node.keyword), clone4(node.type), clone5(node.variables));
+  VariableDeclarationList visitVariableDeclarationList(VariableDeclarationList node) => new VariableDeclarationList(null, clone5(node.metadata), map(node.keyword), clone4(node.type), clone5(node.variables));
 
-  VariableDeclarationStatement visitVariableDeclarationStatement(VariableDeclarationStatement node) => new VariableDeclarationStatement.full(clone4(node.variables), map(node.semicolon));
+  VariableDeclarationStatement visitVariableDeclarationStatement(VariableDeclarationStatement node) => new VariableDeclarationStatement(clone4(node.variables), map(node.semicolon));
 
-  WhileStatement visitWhileStatement(WhileStatement node) => new WhileStatement.full(map(node.keyword), map(node.leftParenthesis), clone4(node.condition), map(node.rightParenthesis), clone4(node.body));
+  WhileStatement visitWhileStatement(WhileStatement node) => new WhileStatement(map(node.keyword), map(node.leftParenthesis), clone4(node.condition), map(node.rightParenthesis), clone4(node.body));
 
-  WithClause visitWithClause(WithClause node) => new WithClause.full(map(node.withKeyword), clone5(node.mixinTypes));
+  WithClause visitWithClause(WithClause node) => new WithClause(map(node.withKeyword), clone5(node.mixinTypes));
 
   ASTNode clone4(ASTNode node) {
     if (node == null) {
@@ -17116,11 +16018,11 @@
  * @coverage com.google.dart.engine.services.completion
  */
 class ScopedNameFinder extends GeneralizingASTVisitor<Object> {
-  Declaration declaration;
+  Declaration _declarationNode;
 
   ASTNode _immediateChild;
 
-  final Map<String, SimpleIdentifier> locals = new Map<String, SimpleIdentifier>();
+  Map<String, SimpleIdentifier> _locals = new Map<String, SimpleIdentifier>();
 
   int _position = 0;
 
@@ -17130,6 +16032,10 @@
     this._position = position;
   }
 
+  Declaration get declaration => _declarationNode;
+
+  Map<String, SimpleIdentifier> get locals => _locals;
+
   Object visitBlock(Block node) {
     checkStatements(node.statements);
     return super.visitBlock(node);
@@ -17145,12 +16051,12 @@
     if (_immediateChild != node.parameters) {
       addParameters(node.parameters.parameters);
     }
-    declaration = node;
+    _declarationNode = node;
     return null;
   }
 
   Object visitFieldDeclaration(FieldDeclaration node) {
-    declaration = node;
+    _declarationNode = node;
     return null;
   }
 
@@ -17171,7 +16077,7 @@
 
   Object visitFunctionDeclaration(FunctionDeclaration node) {
     if (node.parent is! FunctionDeclarationStatement) {
-      declaration = node;
+      _declarationNode = node;
       return null;
     }
     return super.visitFunctionDeclaration(node);
@@ -17190,7 +16096,7 @@
   }
 
   Object visitMethodDeclaration(MethodDeclaration node) {
-    declaration = node;
+    _declarationNode = node;
     if (node.parameters == null) {
       return null;
     }
@@ -17215,12 +16121,12 @@
   }
 
   Object visitTopLevelVariableDeclaration(TopLevelVariableDeclaration node) {
-    declaration = node;
+    _declarationNode = node;
     return null;
   }
 
   Object visitTypeAlias(TypeAlias node) {
-    declaration = node;
+    _declarationNode = node;
     return null;
   }
 
@@ -17233,8 +16139,8 @@
   void addToScope(SimpleIdentifier identifier) {
     if (identifier != null && isInRange(identifier)) {
       String name = identifier.name;
-      if (!locals.containsKey(name)) {
-        locals[name] = identifier;
+      if (!_locals.containsKey(name)) {
+        _locals[name] = identifier;
       }
     }
   }
@@ -17307,8 +16213,9 @@
    * @param visitor the visitor to be used to visit the elements of this list
    */
   accept(ASTVisitor visitor) {
-    for (E element in _elements) {
-      element.accept(visitor);
+    var length = _elements.length;
+    for (var i = 0; i < length; i++) {
+      _elements[i].accept(visitor);
     }
   }
   void add(E node) {
@@ -17323,25 +16230,15 @@
     if (length == 0) {
       _elements = <E> [node];
     } else {
-      List<E> newElements = new List<E>(length + 1);
-      JavaSystem.arraycopy(_elements, 0, newElements, 0, index);
-      newElements[index] = node;
-      JavaSystem.arraycopy(_elements, index, newElements, index + 1, length - index);
-      _elements = newElements;
+      _elements.insert(index, node);
     }
   }
   bool addAll(Iterable<E> nodes) {
     if (nodes != null && !nodes.isEmpty) {
-      int oldCount = _elements.length;
-      int newCount = nodes.length;
-      List<E> newElements = new List<E>(oldCount + newCount);
-      JavaSystem.arraycopy(_elements, 0, newElements, 0, oldCount);
-      int index = oldCount;
+      _elements.addAll(nodes);
       for (E node in nodes) {
         owner.becomeParentOf(node);
-        newElements[index++] = node;
       }
-      _elements = newElements;
       return true;
     }
     return false;
@@ -17386,17 +16283,13 @@
       _elements = ASTNode.EMPTY_ARRAY;
       return removedNode;
     }
-    List<E> newElements = new List<E>(length - 1);
-    JavaSystem.arraycopy(_elements, 0, newElements, 0, index);
-    JavaSystem.arraycopy(_elements, index + 1, newElements, index, length - index - 1);
-    _elements = newElements;
+    _elements.removeAt(index);
     return removedNode;
   }
   void operator[]=(int index, E node) {
     if (index < 0 || index >= _elements.length) {
       throw new RangeError("Index: ${index}, Size: ${_elements.length}");
     }
-    _elements[index] as E;
     owner.becomeParentOf(node);
     _elements[index] = node;
   }
diff --git a/pkg/analyzer/lib/src/generated/constant.dart b/pkg/analyzer/lib/src/generated/constant.dart
index 965bcbd..8fe9e12 100644
--- a/pkg/analyzer/lib/src/generated/constant.dart
+++ b/pkg/analyzer/lib/src/generated/constant.dart
@@ -105,7 +105,7 @@
   /**
    * The value of the expression.
    */
-  Object value;
+  final Object value;
 
   /**
    * The errors that should be reported for the expression(s) that were evaluated.
@@ -119,8 +119,7 @@
    * @param value the value of the expression
    * @param errors the errors that should be reported for the expression(s) that were evaluated
    */
-  EvaluationResult(Object value, List<AnalysisError> errors) {
-    this.value = value;
+  EvaluationResult(this.value, List<AnalysisError> errors) {
     this._errors = errors;
   }
 
@@ -739,7 +738,7 @@
   /**
    * The errors that prevent the expression from being a valid compile time constant.
    */
-  final List<ErrorResult_ErrorData> errorData = new List<ErrorResult_ErrorData>();
+  List<ErrorResult_ErrorData> _errors = new List<ErrorResult_ErrorData>();
 
   /**
    * Initialize a newly created result representing the error with the given code reported against
@@ -749,7 +748,7 @@
    * @param errorCode the error code for the error to be generated
    */
   ErrorResult.con1(ASTNode node, ErrorCode errorCode) {
-    errorData.add(new ErrorResult_ErrorData(node, errorCode));
+    _errors.add(new ErrorResult_ErrorData(node, errorCode));
   }
 
   /**
@@ -760,8 +759,8 @@
    * @param secondResult the second set of results being merged
    */
   ErrorResult.con2(ErrorResult firstResult, ErrorResult secondResult) {
-    errorData.addAll(firstResult.errorData);
-    errorData.addAll(secondResult.errorData);
+    _errors.addAll(firstResult._errors);
+    _errors.addAll(secondResult._errors);
   }
 
   EvaluationResultImpl add(BinaryExpression node, EvaluationResultImpl rightOperand) => rightOperand.addToError(node, this);
@@ -784,6 +783,8 @@
 
   bool equalValues(EvaluationResultImpl result) => false;
 
+  List<ErrorResult_ErrorData> get errorData => _errors;
+
   EvaluationResultImpl greaterThan(BinaryExpression node, EvaluationResultImpl rightOperand) => rightOperand.greaterThanError(node, this);
 
   EvaluationResultImpl greaterThanOrEqual(BinaryExpression node, EvaluationResultImpl rightOperand) => rightOperand.greaterThanOrEqualError(node, this);
@@ -901,12 +902,12 @@
   /**
    * The node against which the error should be reported.
    */
-  ASTNode node;
+  final ASTNode node;
 
   /**
    * The error code for the error to be generated.
    */
-  ErrorCode errorCode;
+  final ErrorCode errorCode;
 
   /**
    * Initialize a newly created data holder to represent the error with the given code reported
@@ -915,10 +916,7 @@
    * @param node the node against which the error should be reported
    * @param errorCode the error code for the error to be generated
    */
-  ErrorResult_ErrorData(ASTNode node, ErrorCode errorCode) {
-    this.node = node;
-    this.errorCode = errorCode;
-  }
+  ErrorResult_ErrorData(this.node, this.errorCode);
 }
 
 /**
@@ -1174,16 +1172,14 @@
   /**
    * The value of the expression.
    */
-  Object value;
+  final Object value;
 
   /**
    * Initialize a newly created result to represent the given value.
    *
    * @param value the value of the expression
    */
-  ValidResult(Object value) {
-    this.value = value;
-  }
+  ValidResult(this.value);
 
   EvaluationResultImpl add(BinaryExpression node, EvaluationResultImpl rightOperand) => rightOperand.addToValid(node, this);
 
diff --git a/pkg/analyzer/lib/src/generated/element.dart b/pkg/analyzer/lib/src/generated/element.dart
index c024cc0..147a861 100644
--- a/pkg/analyzer/lib/src/generated/element.dart
+++ b/pkg/analyzer/lib/src/generated/element.dart
@@ -713,16 +713,14 @@
   /**
    * The name displayed in the UI for this kind of element.
    */
-  String displayName;
+  final String displayName;
 
   /**
    * Initialize a newly created element kind to have the given display name.
    *
    * @param displayName the name displayed in the UI for this kind of element
    */
-  ElementKind(String name, int ordinal, String displayName) : super(name, ordinal) {
-    this.displayName = displayName;
-  }
+  ElementKind(String name, int ordinal, this.displayName) : super(name, ordinal);
 }
 
 /**
@@ -1926,13 +1924,13 @@
    * The element based on propagated type information, or `null` if the AST structure has not
    * been resolved or if this identifier could not be resolved.
    */
-  ExecutableElement propagatedElement;
+  final ExecutableElement propagatedElement;
 
   /**
    * The element associated with this identifier based on static type information, or `null`
    * if the AST structure has not been resolved or if this identifier could not be resolved.
    */
-  ExecutableElement staticElement;
+  final ExecutableElement staticElement;
 
   /**
    * Create the [AuxiliaryElements] with a static and propagated [ExecutableElement].
@@ -1940,10 +1938,7 @@
    * @param staticElement the static element
    * @param propagatedElement the propagated element
    */
-  AuxiliaryElements(ExecutableElement staticElement, ExecutableElement propagatedElement) {
-    this.staticElement = staticElement;
-    this.propagatedElement = propagatedElement;
-  }
+  AuxiliaryElements(this.staticElement, this.propagatedElement);
 }
 
 /**
@@ -1971,12 +1966,12 @@
    * An array containing all of the mixins that are applied to the class being extended in order to
    * derive the superclass of this class.
    */
-  List<InterfaceType> _mixins = InterfaceTypeImpl.EMPTY_ARRAY;
+  List<InterfaceType> mixins = InterfaceTypeImpl.EMPTY_ARRAY;
 
   /**
    * An array containing all of the interfaces that are implemented by this class.
    */
-  List<InterfaceType> _interfaces = InterfaceTypeImpl.EMPTY_ARRAY;
+  List<InterfaceType> interfaces = InterfaceTypeImpl.EMPTY_ARRAY;
 
   /**
    * An array containing all of the methods contained in this class.
@@ -1986,12 +1981,12 @@
   /**
    * The superclass of the class, or `null` if the class does not have an explicit superclass.
    */
-  InterfaceType _supertype;
+  InterfaceType supertype;
 
   /**
    * The type defined by the class.
    */
-  InterfaceType _type;
+  InterfaceType type;
 
   /**
    * An array containing all of the type parameters defined for this class.
@@ -2078,8 +2073,6 @@
     return null;
   }
 
-  List<InterfaceType> get interfaces => _interfaces;
-
   ElementKind get kind => ElementKind.CLASS;
 
   MethodElement getMethod(String methodName) {
@@ -2093,8 +2086,6 @@
 
   List<MethodElement> get methods => _methods;
 
-  List<InterfaceType> get mixins => _mixins;
-
   ConstructorElement getNamedConstructor(String name) {
     for (ConstructorElement element in constructors) {
       String elementName = element.name;
@@ -2117,10 +2108,6 @@
     return null;
   }
 
-  InterfaceType get supertype => _supertype;
-
-  InterfaceType get type => _type;
-
   List<TypeParameterElement> get typeParameters => _typeParameters;
 
   ConstructorElement get unnamedConstructor {
@@ -2314,15 +2301,6 @@
   }
 
   /**
-   * Set the interfaces that are implemented by this class to the given types.
-   *
-   * @param the interfaces that are implemented by this class
-   */
-  void set interfaces(List<InterfaceType> interfaces) {
-    this._interfaces = interfaces;
-  }
-
-  /**
    * Set the methods contained in this class to the given methods.
    *
    * @param methods the methods contained in this class
@@ -2335,34 +2313,6 @@
   }
 
   /**
-   * Set the mixins that are applied to the class being extended in order to derive the superclass
-   * of this class to the given types.
-   *
-   * @param mixins the mixins that are applied to derive the superclass of this class
-   */
-  void set mixins(List<InterfaceType> mixins) {
-    this._mixins = mixins;
-  }
-
-  /**
-   * Set the superclass of the class to the given type.
-   *
-   * @param supertype the superclass of the class
-   */
-  void set supertype(InterfaceType supertype) {
-    this._supertype = supertype;
-  }
-
-  /**
-   * Set the type defined by the class to the given type.
-   *
-   * @param type the type defined by the class
-   */
-  void set type(InterfaceType type) {
-    this._type = type;
-  }
-
-  /**
    * Set whether this class is defined by a typedef construct to correspond to the given value.
    *
    * @param isTypedef `true` if the class is defined by a typedef construct
@@ -2482,7 +2432,7 @@
   /**
    * The source that corresponds to this compilation unit.
    */
-  Source _source;
+  Source source;
 
   /**
    * An array containing all of the function type aliases contained in this compilation unit.
@@ -2498,7 +2448,7 @@
    * The URI that is specified by the "part" directive in the enclosing library, or `null` if
    * this is the defining compilation unit of a library.
    */
-  String _uri;
+  String uri;
 
   /**
    * Initialize a newly created compilation unit element to have the given name.
@@ -2509,7 +2459,7 @@
 
   accept(ElementVisitor visitor) => visitor.visitCompilationUnitElement(this);
 
-  bool operator ==(Object object) => object != null && runtimeType == object.runtimeType && _source == (object as CompilationUnitElementImpl).source;
+  bool operator ==(Object object) => object != null && runtimeType == object.runtimeType && source == (object as CompilationUnitElementImpl).source;
 
   List<PropertyAccessorElement> get accessors => _accessors;
 
@@ -2550,8 +2500,6 @@
 
   ElementKind get kind => ElementKind.COMPILATION_UNIT;
 
-  Source get source => _source;
-
   List<TopLevelVariableElement> get topLevelVariables => _variables;
 
   ClassElement getType(String className) {
@@ -2565,9 +2513,7 @@
 
   List<ClassElement> get types => _types;
 
-  String get uri => _uri;
-
-  int get hashCode => _source.hashCode;
+  int get hashCode => source.hashCode;
 
   /**
    * Set the top-level accessors (getters and setters) contained in this compilation unit to the
@@ -2595,15 +2541,6 @@
   }
 
   /**
-   * Set the source that corresponds to this compilation unit to the given source.
-   *
-   * @param source the source that corresponds to this compilation unit
-   */
-  void set source(Source source) {
-    this._source = source;
-  }
-
-  /**
    * Set the top-level variables contained in this compilation unit to the given variables.
    *
    * @param variables the top-level variables contained in this compilation unit
@@ -2639,15 +2576,6 @@
     this._types = types;
   }
 
-  /**
-   * Set the URI that is specified by the "part" directive in the enclosing library.
-   *
-   * @param uri the URI that is specified by the "part" directive in the enclosing library.
-   */
-  void set uri(String uri) {
-    this._uri = uri;
-  }
-
   void visitChildren(ElementVisitor visitor) {
     super.visitChildren(visitor);
     safelyVisitChildren(_accessors, visitor);
@@ -2658,10 +2586,10 @@
   }
 
   void appendTo(JavaStringBuilder builder) {
-    if (_source == null) {
+    if (source == null) {
       builder.append("{compilation unit}");
     } else {
-      builder.append(_source.fullName);
+      builder.append(source.fullName);
     }
   }
 
@@ -2756,7 +2684,7 @@
   /**
    * The constructor to which this constructor is redirecting.
    */
-  ConstructorElement _redirectedConstructor;
+  ConstructorElement redirectedConstructor;
 
   /**
    * Initialize a newly created constructor element to have the given name.
@@ -2771,8 +2699,6 @@
 
   ElementKind get kind => ElementKind.CONSTRUCTOR;
 
-  ConstructorElement get redirectedConstructor => _redirectedConstructor;
-
   bool get isConst => hasModifier(Modifier.CONST);
 
   bool get isDefaultConstructor {
@@ -2810,15 +2736,6 @@
     setModifier(Modifier.FACTORY, isFactory);
   }
 
-  /**
-   * Sets the constructor to which this constructor is redirecting.
-   *
-   * @param redirectedConstructor the constructor to which this constructor is redirecting
-   */
-  void set redirectedConstructor(ConstructorElement redirectedConstructor) {
-    this._redirectedConstructor = redirectedConstructor;
-  }
-
   void appendTo(JavaStringBuilder builder) {
     builder.append(enclosingElement.displayName);
     String name = displayName;
@@ -2924,7 +2841,7 @@
   /**
    * The element representing the field, variable, or constructor being used as an annotation.
    */
-  Element _element;
+  final Element element;
 
   /**
    * An empty array of annotations.
@@ -2958,22 +2875,18 @@
    * @param element the element representing the field, variable, or constructor being used as an
    *          annotation
    */
-  ElementAnnotationImpl(Element element) {
-    this._element = element;
-  }
-
-  Element get element => _element;
+  ElementAnnotationImpl(this.element);
 
   bool get isDeprecated {
-    if (_element != null) {
-      LibraryElement library = _element.library;
+    if (element != null) {
+      LibraryElement library = element.library;
       if (library != null && library.isDartCore) {
-        if (_element is ConstructorElement) {
-          ConstructorElement constructorElement = _element as ConstructorElement;
+        if (element is ConstructorElement) {
+          ConstructorElement constructorElement = element as ConstructorElement;
           if (constructorElement.enclosingElement.name == _DEPRECATED_CLASS_NAME) {
             return true;
           }
-        } else if (_element is PropertyAccessorElement && _element.name == _DEPRECATED_VARIABLE_NAME) {
+        } else if (element is PropertyAccessorElement && element.name == _DEPRECATED_VARIABLE_NAME) {
           return true;
         }
       }
@@ -2982,10 +2895,10 @@
   }
 
   bool get isOverride {
-    if (_element != null) {
-      LibraryElement library = _element.library;
+    if (element != null) {
+      LibraryElement library = element.library;
       if (library != null && library.isDartCore) {
-        if (_element is PropertyAccessorElement && _element.name == _OVERRIDE_VARIABLE_NAME) {
+        if (element is PropertyAccessorElement && element.name == _OVERRIDE_VARIABLE_NAME) {
           return true;
         }
       }
@@ -2994,10 +2907,10 @@
   }
 
   bool get isProxy {
-    if (_element != null) {
-      LibraryElement library = _element.library;
+    if (element != null) {
+      LibraryElement library = element.library;
       if (library != null && library.isDartCore) {
-        if (_element is PropertyAccessorElement && _element.name == _PROXY_VARIABLE_NAME) {
+        if (element is PropertyAccessorElement && element.name == _PROXY_VARIABLE_NAME) {
           return true;
         }
       }
@@ -3005,7 +2918,7 @@
     return false;
   }
 
-  String toString() => "@${_element.toString()}";
+  String toString() => "@${element.toString()}";
 }
 
 /**
@@ -3030,7 +2943,7 @@
    * The offset of the name of this element in the file that contains the declaration of this
    * element.
    */
-  int _nameOffset = 0;
+  int nameOffset = 0;
 
   /**
    * A bit-encoded form of the modifiers associated with this element.
@@ -3040,7 +2953,7 @@
   /**
    * An array containing all of the metadata associated with this element.
    */
-  List<ElementAnnotation> _metadata = ElementAnnotationImpl.EMPTY_ARRAY;
+  List<ElementAnnotation> metadata = ElementAnnotationImpl.EMPTY_ARRAY;
 
   /**
    * A cached copy of the calculated hashCode for this element.
@@ -3061,9 +2974,8 @@
    * @param nameOffset the offset of the name of this element in the file that contains the
    *          declaration of this element
    */
-  ElementImpl.con2(String name, int nameOffset) {
+  ElementImpl.con2(String name, this.nameOffset) {
     this._name = StringUtilities.intern(name);
-    this._nameOffset = nameOffset;
   }
 
   String computeDocumentationComment() {
@@ -3116,12 +3028,8 @@
 
   ElementLocation get location => new ElementLocationImpl.con1(this);
 
-  List<ElementAnnotation> get metadata => _metadata;
-
   String get name => _name;
 
-  int get nameOffset => _nameOffset;
-
   Source get source {
     if (_enclosingElement == null) {
       return null;
@@ -3144,7 +3052,7 @@
   }
 
   bool get isDeprecated {
-    for (ElementAnnotation annotation in _metadata) {
+    for (ElementAnnotation annotation in metadata) {
       if (annotation.isDeprecated) {
         return true;
       }
@@ -3155,26 +3063,6 @@
   bool get isSynthetic => hasModifier(Modifier.SYNTHETIC);
 
   /**
-   * Set the metadata associate with this element to the given array of annotations.
-   *
-   * @param metadata the metadata to be associated with this element
-   */
-  void set metadata(List<ElementAnnotation> metadata) {
-    this._metadata = metadata;
-  }
-
-  /**
-   * Set the offset of the name of this element in the file that contains the declaration of this
-   * element to the given value. This is normally done via the constructor, but this method is
-   * provided to support unnamed constructors.
-   *
-   * @param nameOffset the offset to the beginning of the name
-   */
-  void set nameOffset(int nameOffset) {
-    this._nameOffset = nameOffset;
-  }
-
-  /**
    * Set whether this element is synthetic to correspond to the given value.
    *
    * @param isSynthetic `true` if the element is synthetic
@@ -3279,7 +3167,7 @@
   /**
    * The path to the element whose location is represented by this object.
    */
-  List<String> components;
+  List<String> _components;
 
   /**
    * The character used to separate components in the encoded form.
@@ -3298,7 +3186,7 @@
       components.insert(0, (ancestor as ElementImpl).identifier);
       ancestor = ancestor.enclosingElement;
     }
-    this.components = new List.from(components);
+    this._components = new List.from(components);
   }
 
   /**
@@ -3307,7 +3195,7 @@
    * @param encoding the encoded form of a location
    */
   ElementLocationImpl.con2(String encoding) {
-    this.components = decode(encoding);
+    this._components = decode(encoding);
   }
 
   bool operator ==(Object object) {
@@ -3318,41 +3206,48 @@
       return false;
     }
     ElementLocationImpl location = object as ElementLocationImpl;
-    List<String> otherComponents = location.components;
-    int length = components.length;
+    List<String> otherComponents = location._components;
+    int length = _components.length;
     if (otherComponents.length != length) {
       return false;
     }
     for (int i = length - 1; i >= 2; i--) {
-      if (components[i] != otherComponents[i]) {
+      if (_components[i] != otherComponents[i]) {
         return false;
       }
     }
-    if (length > 1 && !equalSourceComponents(components[1], otherComponents[1])) {
+    if (length > 1 && !equalSourceComponents(_components[1], otherComponents[1])) {
       return false;
     }
-    if (length > 0 && !equalSourceComponents(components[0], otherComponents[0])) {
+    if (length > 0 && !equalSourceComponents(_components[0], otherComponents[0])) {
       return false;
     }
     return true;
   }
 
+  /**
+   * Return the path to the element whose location is represented by this object.
+   *
+   * @return the path to the element whose location is represented by this object
+   */
+  List<String> get components => _components;
+
   String get encoding {
     JavaStringBuilder builder = new JavaStringBuilder();
-    int length = components.length;
+    int length = _components.length;
     for (int i = 0; i < length; i++) {
       if (i > 0) {
         builder.appendChar(_SEPARATOR_CHAR);
       }
-      encode(builder, components[i]);
+      encode(builder, _components[i]);
     }
     return builder.toString();
   }
 
   int get hashCode {
     int result = 1;
-    for (int i = 0; i < components.length; i++) {
-      String component = components[i];
+    for (int i = 0; i < _components.length; i++) {
+      String component = _components[i];
       int componentHash;
       if (i <= 1) {
         componentHash = hashSourceComponent(component);
@@ -3524,12 +3419,12 @@
   /**
    * The return type defined by this executable element.
    */
-  Type2 _returnType;
+  Type2 returnType;
 
   /**
    * The type of function defined by this executable element.
    */
-  FunctionType _type;
+  FunctionType type;
 
   /**
    * An empty array of executable elements.
@@ -3584,10 +3479,6 @@
 
   List<ParameterElement> get parameters => _parameters;
 
-  Type2 get returnType => _returnType;
-
-  FunctionType get type => _type;
-
   bool get isOperator => false;
 
   /**
@@ -3638,24 +3529,6 @@
     this._parameters = parameters;
   }
 
-  /**
-   * Set the return type defined by this executable element.
-   *
-   * @param returnType the return type defined by this executable element
-   */
-  void set returnType(Type2 returnType) {
-    this._returnType = returnType;
-  }
-
-  /**
-   * Set the type of function defined by this executable element to the given type.
-   *
-   * @param type the type of function defined by this executable element
-   */
-  void set type(FunctionType type) {
-    this._type = type;
-  }
-
   void visitChildren(ElementVisitor visitor) {
     super.visitChildren(visitor);
     safelyVisitChildren(_functions, visitor);
@@ -3674,9 +3547,9 @@
       (_parameters[i] as ParameterElementImpl).appendTo(builder);
     }
     builder.append(")");
-    if (_type != null) {
+    if (type != null) {
       builder.append(Element.RIGHT_ARROW);
-      builder.append(_type.returnType);
+      builder.append(type.returnType);
     }
   }
 }
@@ -3690,18 +3563,18 @@
   /**
    * The URI that is specified by this directive.
    */
-  String _uri;
+  String uri;
 
   /**
    * The library that is exported from this library by this export directive.
    */
-  LibraryElement _exportedLibrary;
+  LibraryElement exportedLibrary;
 
   /**
    * The combinators that were specified as part of the export directive in the order in which they
    * were specified.
    */
-  List<NamespaceCombinator> _combinators = NamespaceCombinator.EMPTY_ARRAY;
+  List<NamespaceCombinator> combinators = NamespaceCombinator.EMPTY_ARRAY;
 
   /**
    * Initialize a newly created export element.
@@ -3710,49 +3583,14 @@
 
   accept(ElementVisitor visitor) => visitor.visitExportElement(this);
 
-  List<NamespaceCombinator> get combinators => _combinators;
-
-  LibraryElement get exportedLibrary => _exportedLibrary;
-
   ElementKind get kind => ElementKind.EXPORT;
 
-  String get uri => _uri;
-
-  /**
-   * Set the combinators that were specified as part of the export directive to the given array of
-   * combinators.
-   *
-   * @param combinators the combinators that were specified as part of the export directive
-   */
-  void set combinators(List<NamespaceCombinator> combinators) {
-    this._combinators = combinators;
-  }
-
-  /**
-   * Set the library that is exported from this library by this import directive to the given
-   * library.
-   *
-   * @param exportedLibrary the library that is exported from this library
-   */
-  void set exportedLibrary(LibraryElement exportedLibrary) {
-    this._exportedLibrary = exportedLibrary;
-  }
-
-  /**
-   * Set the URI that is specified by this directive.
-   *
-   * @param uri the URI that is specified by this directive.
-   */
-  void set uri(String uri) {
-    this._uri = uri;
-  }
-
   void appendTo(JavaStringBuilder builder) {
     builder.append("export ");
-    (_exportedLibrary as LibraryElementImpl).appendTo(builder);
+    (exportedLibrary as LibraryElementImpl).appendTo(builder);
   }
 
-  String get identifier => _exportedLibrary.name;
+  String get identifier => exportedLibrary.name;
 }
 
 /**
@@ -3765,7 +3603,7 @@
   /**
    * The source specified in the `source` attribute or `null` if unspecified.
    */
-  Source _scriptSource;
+  Source scriptSource;
 
   /**
    * Initialize a newly created script element to have the specified tag name and offset.
@@ -3777,17 +3615,6 @@
   accept(ElementVisitor visitor) => visitor.visitExternalHtmlScriptElement(this);
 
   ElementKind get kind => ElementKind.EXTERNAL_HTML_SCRIPT;
-
-  Source get scriptSource => _scriptSource;
-
-  /**
-   * Set the source specified in the `source` attribute.
-   *
-   * @param scriptSource the script source or `null` if unspecified
-   */
-  void set scriptSource(Source scriptSource) {
-    this._scriptSource = scriptSource;
-  }
 }
 
 /**
@@ -3844,7 +3671,7 @@
   /**
    * The field associated with this field formal parameter.
    */
-  FieldElement _field;
+  FieldElement field;
 
   /**
    * Initialize a newly created parameter element to have the given name.
@@ -3855,18 +3682,7 @@
 
   accept(ElementVisitor visitor) => visitor.visitFieldFormalParameterElement(this);
 
-  FieldElement get field => _field;
-
   bool get isInitializingFormal => true;
-
-  /**
-   * Set the field element associated with this field formal parameter to the given element.
-   *
-   * @param field the new field element
-   */
-  void set field(FieldElement field) {
-    this._field = field;
-  }
 }
 
 /**
@@ -3892,13 +3708,6 @@
   static List<FunctionElement> EMPTY_ARRAY = new List<FunctionElement>(0);
 
   /**
-   * Initialize a newly created synthetic function element.
-   */
-  FunctionElementImpl() : super.con2("", -1) {
-    synthetic = true;
-  }
-
-  /**
    * Initialize a newly created function element to have the given name.
    *
    * @param name the name of this element
@@ -3916,45 +3725,6 @@
 
   accept(ElementVisitor visitor) => visitor.visitFunctionElement(this);
 
-  /**
-   * Treating the set of arrays defined in [ExecutableElementImpl] as one long array, this
-   * returns the index position of the passed child in this [FunctionElement]. This gives a
-   * unique integer for each element, this is provided primarily for function elements that do not
-   * have a name (closures), which cannot use [Element#getNameOffset]. If there is no such
-   * element, `-1` is returned.
-   *
-   * @param element the element to find and return an integer for, if there is no such element,
-   *          `-1` is returned
-   */
-  int getIndexPosition(Element element) {
-    List<FunctionElement> functions = this.functions;
-    List<LabelElement> labels = this.labels;
-    List<LocalVariableElement> localVariables = this.localVariables;
-    List<ParameterElement> parameters = this.parameters;
-    int count = 0;
-    for (int i = 0; i < functions.length; i++, count++) {
-      if (identical(element, functions[i])) {
-        return count;
-      }
-    }
-    for (int i = 0; i < labels.length; i++, count++) {
-      if (identical(element, labels[i])) {
-        return count;
-      }
-    }
-    for (int i = 0; i < localVariables.length; i++, count++) {
-      if (identical(element, localVariables[i])) {
-        return count;
-      }
-    }
-    for (int i = 0; i < parameters.length; i++, count++) {
-      if (identical(element, parameters[i])) {
-        return count;
-      }
-    }
-    return -1;
-  }
-
   ElementKind get kind => ElementKind.FUNCTION;
 
   SourceRange get visibleRange {
@@ -4005,12 +3775,12 @@
   /**
    * The return type defined by this type alias.
    */
-  Type2 _returnType;
+  Type2 returnType;
 
   /**
    * The type of function defined by this type alias.
    */
-  FunctionType _type;
+  FunctionType type;
 
   /**
    * An array containing all of the type parameters defined for this type.
@@ -4051,10 +3821,6 @@
 
   List<ParameterElement> get parameters => _parameters;
 
-  Type2 get returnType => _returnType;
-
-  FunctionType get type => _type;
-
   List<TypeParameterElement> get typeParameters => _typeParameters;
 
   /**
@@ -4072,24 +3838,6 @@
   }
 
   /**
-   * Set the return type defined by this type alias.
-   *
-   * @param returnType the return type defined by this type alias
-   */
-  void set returnType(Type2 returnType) {
-    this._returnType = returnType;
-  }
-
-  /**
-   * Set the type of function defined by this type alias to the given type.
-   *
-   * @param type the type of function defined by this type alias
-   */
-  void set type(FunctionType type) {
-    this._type = type;
-  }
-
-  /**
    * Set the type parameters defined for this type to the given parameters.
    *
    * @param typeParameters the type parameters defined for this type
@@ -4152,9 +3900,9 @@
       (_parameters[i] as ParameterElementImpl).appendTo(builder);
     }
     builder.append(")");
-    if (_type != null) {
+    if (type != null) {
       builder.append(Element.RIGHT_ARROW);
-      builder.append(_type.returnType);
+      builder.append(type.returnType);
     }
   }
 }
@@ -4170,29 +3918,17 @@
    * The names that are not to be made visible in the importing library even if they are defined in
    * the imported library.
    */
-  List<String> _hiddenNames = StringUtilities.EMPTY_ARRAY;
-
-  List<String> get hiddenNames => _hiddenNames;
-
-  /**
-   * Set the names that are not to be made visible in the importing library even if they are defined
-   * in the imported library to the given names.
-   *
-   * @param hiddenNames the names that are not to be made visible in the importing library
-   */
-  void set hiddenNames(List<String> hiddenNames) {
-    this._hiddenNames = hiddenNames;
-  }
+  List<String> hiddenNames = StringUtilities.EMPTY_ARRAY;
 
   String toString() {
     JavaStringBuilder builder = new JavaStringBuilder();
     builder.append("show ");
-    int count = _hiddenNames.length;
+    int count = hiddenNames.length;
     for (int i = 0; i < count; i++) {
       if (i > 0) {
         builder.append(", ");
       }
-      builder.append(_hiddenNames[i]);
+      builder.append(hiddenNames[i]);
     }
     return builder.toString();
   }
@@ -4212,7 +3948,7 @@
   /**
    * The analysis context in which this library is defined.
    */
-  AnalysisContext _context;
+  final AnalysisContext context;
 
   /**
    * The scripts contained in or referenced from script tags in the HTML file.
@@ -4222,7 +3958,7 @@
   /**
    * The source that corresponds to this HTML file.
    */
-  Source _source;
+  Source source;
 
   /**
    * Initialize a newly created HTML element to have the given name.
@@ -4230,23 +3966,17 @@
    * @param context the analysis context in which the HTML file is defined
    * @param name the name of this element
    */
-  HtmlElementImpl(AnalysisContext context, String name) : super.con2(name, -1) {
-    this._context = context;
-  }
+  HtmlElementImpl(this.context, String name) : super.con2(name, -1);
 
   accept(ElementVisitor visitor) => visitor.visitHtmlElement(this);
 
-  bool operator ==(Object object) => runtimeType == object.runtimeType && _source == (object as CompilationUnitElementImpl).source;
-
-  AnalysisContext get context => _context;
+  bool operator ==(Object object) => runtimeType == object.runtimeType && source == (object as CompilationUnitElementImpl).source;
 
   ElementKind get kind => ElementKind.HTML;
 
   List<HtmlScriptElement> get scripts => _scripts;
 
-  Source get source => _source;
-
-  int get hashCode => _source.hashCode;
+  int get hashCode => source.hashCode;
 
   /**
    * Set the scripts contained in the HTML file to the given scripts.
@@ -4263,25 +3993,16 @@
     this._scripts = scripts;
   }
 
-  /**
-   * Set the source that corresponds to this HTML file to the given source.
-   *
-   * @param source the source that corresponds to this HTML file
-   */
-  void set source(Source source) {
-    this._source = source;
-  }
-
   void visitChildren(ElementVisitor visitor) {
     super.visitChildren(visitor);
     safelyVisitChildren(_scripts, visitor);
   }
 
   void appendTo(JavaStringBuilder builder) {
-    if (_source == null) {
+    if (source == null) {
       builder.append("{HTML file}");
     } else {
-      builder.append(_source.fullName);
+      builder.append(source.fullName);
     }
   }
 }
@@ -4320,35 +4041,35 @@
    * The offset of the character immediately following the last character of this node's URI, may be
    * `-1` if synthetic.
    */
-  int _uriEnd = -1;
+  int uriEnd = -1;
 
   /**
    * The offset of the prefix of this import in the file that contains the this import directive, or
    * `-1` if this import is synthetic.
    */
-  int _prefixOffset = 0;
+  int prefixOffset = 0;
 
   /**
    * The URI that is specified by this directive.
    */
-  String _uri;
+  String uri;
 
   /**
    * The library that is imported into this library by this import directive.
    */
-  LibraryElement _importedLibrary;
+  LibraryElement importedLibrary;
 
   /**
    * The combinators that were specified as part of the import directive in the order in which they
    * were specified.
    */
-  List<NamespaceCombinator> _combinators = NamespaceCombinator.EMPTY_ARRAY;
+  List<NamespaceCombinator> combinators = NamespaceCombinator.EMPTY_ARRAY;
 
   /**
    * The prefix that was specified as part of the import directive, or `null` if there was no
    * prefix specified.
    */
-  PrefixElement _prefix;
+  PrefixElement prefix;
 
   /**
    * Initialize a newly created import element.
@@ -4357,40 +4078,8 @@
 
   accept(ElementVisitor visitor) => visitor.visitImportElement(this);
 
-  List<NamespaceCombinator> get combinators => _combinators;
-
-  LibraryElement get importedLibrary => _importedLibrary;
-
   ElementKind get kind => ElementKind.IMPORT;
 
-  PrefixElement get prefix => _prefix;
-
-  int get prefixOffset => _prefixOffset;
-
-  String get uri => _uri;
-
-  int get uriEnd => _uriEnd;
-
-  /**
-   * Set the combinators that were specified as part of the import directive to the given array of
-   * combinators.
-   *
-   * @param combinators the combinators that were specified as part of the import directive
-   */
-  void set combinators(List<NamespaceCombinator> combinators) {
-    this._combinators = combinators;
-  }
-
-  /**
-   * Set the library that is imported into this library by this import directive to the given
-   * library.
-   *
-   * @param importedLibrary the library that is imported into this library
-   */
-  void set importedLibrary(LibraryElement importedLibrary) {
-    this._importedLibrary = importedLibrary;
-  }
-
   /**
    * Set the offset of this directive.
    */
@@ -4398,51 +4087,17 @@
     this._offset = offset;
   }
 
-  /**
-   * Set the prefix that was specified as part of the import directive to the given prefix.
-   *
-   * @param prefix the prefix that was specified as part of the import directive
-   */
-  void set prefix(PrefixElement prefix) {
-    this._prefix = prefix;
-  }
-
-  /**
-   * Set the offset of the prefix of this import in the file that contains the this import
-   * directive.
-   */
-  void set prefixOffset(int prefixOffset) {
-    this._prefixOffset = prefixOffset;
-  }
-
-  /**
-   * Set the URI that is specified by this directive.
-   *
-   * @param uri the URI that is specified by this directive.
-   */
-  void set uri(String uri) {
-    this._uri = uri;
-  }
-
-  /**
-   * Set the the offset of the character immediately following the last character of this node's
-   * URI. `-1` for synthetic import.
-   */
-  void set uriEnd(int uriEnd) {
-    this._uriEnd = uriEnd;
-  }
-
   void visitChildren(ElementVisitor visitor) {
     super.visitChildren(visitor);
-    safelyVisitChild(_prefix, visitor);
+    safelyVisitChild(prefix, visitor);
   }
 
   void appendTo(JavaStringBuilder builder) {
     builder.append("import ");
-    (_importedLibrary as LibraryElementImpl).appendTo(builder);
+    (importedLibrary as LibraryElementImpl).appendTo(builder);
   }
 
-  String get identifier => "${(_importedLibrary as LibraryElementImpl).identifier}@${_offset}";
+  String get identifier => "${(importedLibrary as LibraryElementImpl).identifier}@${_offset}";
 }
 
 /**
@@ -4454,13 +4109,13 @@
   /**
    * A flag indicating whether this label is associated with a `switch` statement.
    */
-  bool isOnSwitchStatement = false;
+  bool _onSwitchStatement = false;
 
   /**
    * A flag indicating whether this label is associated with a `switch` member (`case`
    * or `default`).
    */
-  bool isOnSwitchMember = false;
+  bool _onSwitchMember = false;
 
   /**
    * An empty array of label elements.
@@ -4476,8 +4131,8 @@
    * @param onSwitchMember `true` if this label is associated with a `switch` member
    */
   LabelElementImpl(Identifier name, bool onSwitchStatement, bool onSwitchMember) : super.con1(name) {
-    this.isOnSwitchStatement = onSwitchStatement;
-    this.isOnSwitchMember = onSwitchMember;
+    this._onSwitchStatement = onSwitchStatement;
+    this._onSwitchMember = onSwitchMember;
   }
 
   accept(ElementVisitor visitor) => visitor.visitLabelElement(this);
@@ -4485,6 +4140,21 @@
   ExecutableElement get enclosingElement => super.enclosingElement as ExecutableElement;
 
   ElementKind get kind => ElementKind.LABEL;
+
+  /**
+   * Return `true` if this label is associated with a `switch` member (`case` or
+   * `default`).
+   *
+   * @return `true` if this label is associated with a `switch` member
+   */
+  bool get isOnSwitchMember => _onSwitchMember;
+
+  /**
+   * Return `true` if this label is associated with a `switch` statement.
+   *
+   * @return `true` if this label is associated with a `switch` statement
+   */
+  bool get isOnSwitchStatement => _onSwitchStatement;
 }
 
 /**
@@ -4533,7 +4203,7 @@
   /**
    * The analysis context in which this library is defined.
    */
-  AnalysisContext _context;
+  final AnalysisContext context;
 
   /**
    * The compilation unit that defines this library.
@@ -4543,7 +4213,7 @@
   /**
    * The entry point for this library, or `null` if this library does not have an entry point.
    */
-  FunctionElement _entryPoint;
+  FunctionElement entryPoint;
 
   /**
    * An array containing specifications of all of the imports defined in this library.
@@ -4567,9 +4237,7 @@
    * @param context the analysis context in which the library is defined
    * @param name the name of this element
    */
-  LibraryElementImpl(AnalysisContext context, LibraryIdentifier name) : super.con1(name) {
-    this._context = context;
-  }
+  LibraryElementImpl(this.context, LibraryIdentifier name) : super.con1(name);
 
   accept(ElementVisitor visitor) => visitor.visitLibraryElement(this);
 
@@ -4597,12 +4265,8 @@
     return null;
   }
 
-  AnalysisContext get context => _context;
-
   CompilationUnitElement get definingCompilationUnit => _definingCompilationUnit;
 
-  FunctionElement get entryPoint => _entryPoint;
-
   List<LibraryElement> get exportedLibraries {
     Set<LibraryElement> libraries = new Set<LibraryElement>();
     for (ExportElement element in _exports) {
@@ -4669,7 +4333,7 @@
 
   int get hashCode => _definingCompilationUnit.hashCode;
 
-  bool get isBrowserApplication => _entryPoint != null && isOrImportsBrowserLibrary;
+  bool get isBrowserApplication => entryPoint != null && isOrImportsBrowserLibrary;
 
   bool get isDartCore => name == "dart.core";
 
@@ -4691,15 +4355,6 @@
   }
 
   /**
-   * Set the entry point for this library to the given function.
-   *
-   * @param entryPoint the entry point for this library
-   */
-  void set entryPoint(FunctionElement entryPoint) {
-    this._entryPoint = entryPoint;
-  }
-
-  /**
    * Set the specifications of all of the exports defined in this library to the given array.
    *
    * @param exports the specifications of all of the exports defined in this library
@@ -4757,7 +4412,7 @@
    */
   bool get isOrImportsBrowserLibrary {
     List<LibraryElement> visited = new List<LibraryElement>();
-    Source htmlLibSource = _context.sourceFactory.forUri(DartSdk.DART_HTML);
+    Source htmlLibSource = context.sourceFactory.forUri(DartSdk.DART_HTML);
     visited.add(this);
     for (int index = 0; index < visited.length; index++) {
       LibraryElement library = visited[index];
@@ -5031,7 +4686,7 @@
    */
   static void add(Set<Element> elements, Element element) {
     if (element is MultiplyDefinedElementImpl) {
-      for (Element conflictingElement in (element as MultiplyDefinedElementImpl)._conflictingElements) {
+      for (Element conflictingElement in (element as MultiplyDefinedElementImpl).conflictingElements) {
         elements.add(conflictingElement);
       }
     } else {
@@ -5058,7 +4713,7 @@
   /**
    * The analysis context in which the multiply defined elements are defined.
    */
-  AnalysisContext _context;
+  final AnalysisContext context;
 
   /**
    * The name of the conflicting elements.
@@ -5068,7 +4723,7 @@
   /**
    * A list containing all of the elements that conflict.
    */
-  List<Element> _conflictingElements;
+  final List<Element> conflictingElements;
 
   /**
    * Initialize a newly created element to represent a list of conflicting elements.
@@ -5076,10 +4731,8 @@
    * @param context the analysis context in which the multiply defined elements are defined
    * @param conflictingElements the elements that conflict
    */
-  MultiplyDefinedElementImpl(AnalysisContext context, List<Element> conflictingElements) {
-    this._context = context;
+  MultiplyDefinedElementImpl(this.context, this.conflictingElements) {
     _name = conflictingElements[0].name;
-    this._conflictingElements = conflictingElements;
   }
 
   accept(ElementVisitor visitor) => visitor.visitMultiplyDefinedElement(this);
@@ -5088,10 +4741,6 @@
 
   Element getAncestor(Type elementClass) => null;
 
-  List<Element> get conflictingElements => _conflictingElements;
-
-  AnalysisContext get context => _context;
-
   String get displayName => _name;
 
   Element get enclosingElement => null;
@@ -5113,7 +4762,7 @@
   Type2 get type => DynamicTypeImpl.instance;
 
   bool isAccessibleIn(LibraryElement library) {
-    for (Element element in _conflictingElements) {
+    for (Element element in conflictingElements) {
       if (element.isAccessibleIn(library)) {
         return true;
       }
@@ -5128,12 +4777,12 @@
   String toString() {
     JavaStringBuilder builder = new JavaStringBuilder();
     builder.append("[");
-    int count = _conflictingElements.length;
+    int count = conflictingElements.length;
     for (int i = 0; i < count; i++) {
       if (i > 0) {
         builder.append(", ");
       }
-      (_conflictingElements[i] as ElementImpl).appendTo(builder);
+      (conflictingElements[i] as ElementImpl).appendTo(builder);
     }
     builder.append("]");
     return builder.toString();
@@ -5168,7 +4817,7 @@
   /**
    * The kind of this parameter.
    */
-  ParameterKind _parameterKind;
+  ParameterKind parameterKind;
 
   /**
    * The offset to the beginning of the default value range for this element.
@@ -5224,8 +4873,6 @@
 
   ElementKind get kind => ElementKind.PARAMETER;
 
-  ParameterKind get parameterKind => _parameterKind;
-
   List<ParameterElement> get parameters => _parameters;
 
   SourceRange get visibleRange {
@@ -5269,15 +4916,6 @@
   }
 
   /**
-   * Set the kind of this parameter to the given kind.
-   *
-   * @param parameterKind the new kind of this parameter
-   */
-  void set parameterKind(ParameterKind parameterKind) {
-    this._parameterKind = parameterKind;
-  }
-
-  /**
    * Set the parameters defined by this executable element to the given parameters.
    *
    * @param parameters the parameters defined by this executable element
@@ -5389,7 +5027,7 @@
   /**
    * The variable associated with this accessor.
    */
-  PropertyInducingElement _variable;
+  PropertyInducingElement variable;
 
   /**
    * An empty array of property accessor elements.
@@ -5410,7 +5048,7 @@
    * @param variable the variable with which this access is associated
    */
   PropertyAccessorElementImpl.con2(PropertyInducingElementImpl variable) : super.con2(variable.name, variable.nameOffset) {
-    this._variable = variable;
+    this.variable = variable;
     synthetic = true;
   }
 
@@ -5419,17 +5057,17 @@
   bool operator ==(Object object) => super == object && identical(isGetter, (object as PropertyAccessorElement).isGetter);
 
   PropertyAccessorElement get correspondingGetter {
-    if (isGetter || _variable == null) {
+    if (isGetter || variable == null) {
       return null;
     }
-    return _variable.getter;
+    return variable.getter;
   }
 
   PropertyAccessorElement get correspondingSetter {
-    if (isSetter || _variable == null) {
+    if (isSetter || variable == null) {
       return null;
     }
-    return _variable.setter;
+    return variable.setter;
   }
 
   ElementKind get kind {
@@ -5446,7 +5084,7 @@
     return super.name;
   }
 
-  PropertyInducingElement get variable => _variable;
+  int get hashCode => ObjectUtilities.combineHashCodes(super.hashCode, isGetter ? 1 : 2);
 
   bool get isAbstract => hasModifier(Modifier.ABSTRACT);
 
@@ -5492,15 +5130,6 @@
     setModifier(Modifier.STATIC, isStatic);
   }
 
-  /**
-   * Set the variable associated with this accessor to the given variable.
-   *
-   * @param variable the variable associated with this accessor
-   */
-  void set variable(PropertyInducingElement variable) {
-    this._variable = variable;
-  }
-
   void appendTo(JavaStringBuilder builder) {
     builder.append(isGetter ? "get " : "set ");
     builder.append(variable.displayName);
@@ -5518,13 +5147,13 @@
   /**
    * The getter associated with this element.
    */
-  PropertyAccessorElement _getter;
+  PropertyAccessorElement getter;
 
   /**
    * The setter associated with this element, or `null` if the element is effectively
    * `final` and therefore does not have a setter associated with it.
    */
-  PropertyAccessorElement _setter;
+  PropertyAccessorElement setter;
 
   /**
    * An empty array of elements.
@@ -5546,28 +5175,6 @@
   PropertyInducingElementImpl.con2(String name) : super.con2(name, -1) {
     synthetic = true;
   }
-
-  PropertyAccessorElement get getter => _getter;
-
-  PropertyAccessorElement get setter => _setter;
-
-  /**
-   * Set the getter associated with this element to the given accessor.
-   *
-   * @param getter the getter associated with this element
-   */
-  void set getter(PropertyAccessorElement getter) {
-    this._getter = getter;
-  }
-
-  /**
-   * Set the setter associated with this element to the given accessor.
-   *
-   * @param setter the setter associated with this element
-   */
-  void set setter(PropertyAccessorElement setter) {
-    this._setter = setter;
-  }
 }
 
 /**
@@ -5581,57 +5188,27 @@
    * The names that are to be made visible in the importing library if they are defined in the
    * imported library.
    */
-  List<String> _shownNames = StringUtilities.EMPTY_ARRAY;
+  List<String> shownNames = StringUtilities.EMPTY_ARRAY;
 
   /**
    * The offset of the character immediately following the last character of this node.
    */
-  int _end = -1;
+  int end = -1;
 
   /**
    * The offset of the 'show' keyword of this element.
    */
-  int _offset = 0;
-
-  int get end => _end;
-
-  int get offset => _offset;
-
-  List<String> get shownNames => _shownNames;
-
-  /**
-   * Set the the offset of the character immediately following the last character of this node.
-   */
-  void set end(int endOffset) {
-    this._end = endOffset;
-  }
-
-  /**
-   * Sets the offset of the 'show' keyword of this directive.
-   */
-  void set offset(int offset) {
-    this._offset = offset;
-  }
-
-  /**
-   * Set the names that are to be made visible in the importing library if they are defined in the
-   * imported library to the given names.
-   *
-   * @param shownNames the names that are to be made visible in the importing library
-   */
-  void set shownNames(List<String> shownNames) {
-    this._shownNames = shownNames;
-  }
+  int offset = 0;
 
   String toString() {
     JavaStringBuilder builder = new JavaStringBuilder();
     builder.append("show ");
-    int count = _shownNames.length;
+    int count = shownNames.length;
     for (int i = 0; i < count; i++) {
       if (i > 0) {
         builder.append(", ");
       }
-      builder.append(_shownNames[i]);
+      builder.append(shownNames[i]);
     }
     return builder.toString();
   }
@@ -5679,13 +5256,13 @@
   /**
    * The type defined by this type parameter.
    */
-  TypeParameterType _type;
+  TypeParameterType type;
 
   /**
    * The type representing the bound associated with this parameter, or `null` if this
    * parameter does not have an explicit bound.
    */
-  Type2 _bound;
+  Type2 bound;
 
   /**
    * An empty array of type parameter elements.
@@ -5701,35 +5278,13 @@
 
   accept(ElementVisitor visitor) => visitor.visitTypeParameterElement(this);
 
-  Type2 get bound => _bound;
-
   ElementKind get kind => ElementKind.TYPE_PARAMETER;
 
-  TypeParameterType get type => _type;
-
-  /**
-   * Set the type representing the bound associated with this parameter to the given type.
-   *
-   * @param bound the type representing the bound associated with this parameter
-   */
-  void set bound(Type2 bound) {
-    this._bound = bound;
-  }
-
-  /**
-   * Set the type defined by this type parameter to the given type
-   *
-   * @param type the type defined by this type parameter
-   */
-  void set type(TypeParameterType type) {
-    this._type = type;
-  }
-
   void appendTo(JavaStringBuilder builder) {
     builder.append(displayName);
-    if (_bound != null) {
+    if (bound != null) {
       builder.append(" extends ");
-      builder.append(_bound);
+      builder.append(bound);
     }
   }
 }
@@ -5743,7 +5298,7 @@
   /**
    * The declared type of this variable.
    */
-  Type2 _type;
+  Type2 type;
 
   /**
    * A synthetic function representing this variable's initializer, or `null` if this variable
@@ -5783,8 +5338,6 @@
 
   FunctionElement get initializer => _initializer;
 
-  Type2 get type => _type;
-
   bool get isConst => hasModifier(Modifier.CONST);
 
   bool get isFinal => hasModifier(Modifier.FINAL);
@@ -5845,15 +5398,6 @@
     this._initializer = initializer;
   }
 
-  /**
-   * Set the declared type of this variable to the given type.
-   *
-   * @param type the declared type of this variable
-   */
-  void set type(Type2 type) {
-    this._type = type;
-  }
-
   void visitChildren(ElementVisitor visitor) {
     super.visitChildren(visitor);
     safelyVisitChild(_initializer, visitor);
@@ -6533,7 +6077,14 @@
   /**
    * The unique instance of this class.
    */
-  static final BottomTypeImpl instance = new BottomTypeImpl();
+  static BottomTypeImpl _INSTANCE = new BottomTypeImpl();
+
+  /**
+   * Return the unique instance of this class.
+   *
+   * @return the unique instance of this class
+   */
+  static BottomTypeImpl get instance => _INSTANCE;
 
   /**
    * Prevent the creation of instances of this class.
@@ -6542,6 +6093,8 @@
 
   bool operator ==(Object object) => identical(object, this);
 
+  int get hashCode => 0;
+
   bool get isBottom => true;
 
   bool isSupertypeOf(Type2 type) => false;
@@ -6562,7 +6115,14 @@
   /**
    * The unique instance of this class.
    */
-  static final DynamicTypeImpl instance = new DynamicTypeImpl();
+  static DynamicTypeImpl _INSTANCE = new DynamicTypeImpl();
+
+  /**
+   * Return the unique instance of this class.
+   *
+   * @return the unique instance of this class
+   */
+  static DynamicTypeImpl get instance => _INSTANCE;
 
   /**
    * Prevent the creation of instances of this class.
@@ -6571,7 +6131,9 @@
     (element as DynamicElementImpl).type = this;
   }
 
-  bool operator ==(Object object) => object is DynamicTypeImpl;
+  bool operator ==(Object object) => identical(object, this);
+
+  int get hashCode => 1;
 
   bool get isDynamic => true;
 
@@ -6633,7 +6195,7 @@
   /**
    * An array containing the actual types of the type arguments.
    */
-  List<Type2> _typeArguments = TypeImpl.EMPTY_ARRAY;
+  List<Type2> typeArguments = TypeImpl.EMPTY_ARRAY;
 
   /**
    * Initialize a newly created function type to be declared by the given element and to have the
@@ -6736,7 +6298,7 @@
     List<Type2> typeParameters = TypeParameterTypeImpl.getTypes(this.typeParameters);
     for (ParameterElement parameter in parameters) {
       if (identical(parameter.parameterKind, ParameterKind.NAMED)) {
-        namedParameterTypes[parameter.name] = parameter.type.substitute2(_typeArguments, typeParameters);
+        namedParameterTypes[parameter.name] = parameter.type.substitute2(typeArguments, typeParameters);
       }
     }
     return namedParameterTypes;
@@ -6751,7 +6313,7 @@
     List<Type2> types = new List<Type2>();
     for (ParameterElement parameter in parameters) {
       if (identical(parameter.parameterKind, ParameterKind.REQUIRED)) {
-        types.add(parameter.type.substitute2(_typeArguments, typeParameters));
+        types.add(parameter.type.substitute2(typeArguments, typeParameters));
       }
     }
     return new List.from(types);
@@ -6766,7 +6328,7 @@
     List<Type2> types = new List<Type2>();
     for (ParameterElement parameter in parameters) {
       if (identical(parameter.parameterKind, ParameterKind.POSITIONAL)) {
-        types.add(parameter.type.substitute2(_typeArguments, typeParameters));
+        types.add(parameter.type.substitute2(typeArguments, typeParameters));
       }
     }
     return new List.from(types);
@@ -6790,11 +6352,9 @@
     if (baseReturnType == null) {
       return DynamicTypeImpl.instance;
     }
-    return baseReturnType.substitute2(_typeArguments, TypeParameterTypeImpl.getTypes(typeParameters));
+    return baseReturnType.substitute2(typeArguments, TypeParameterTypeImpl.getTypes(typeParameters));
   }
 
-  List<Type2> get typeArguments => _typeArguments;
-
   List<TypeParameterElement> get typeParameters {
     Element element = this.element;
     if (element is FunctionTypeAliasElement) {
@@ -6903,15 +6463,6 @@
 
   bool isAssignableTo(Type2 type) => isSubtypeOf3(type, new Set<TypeImpl_TypePair>());
 
-  /**
-   * Set the actual types of the type arguments to the given types.
-   *
-   * @param typeArguments the actual types of the type arguments
-   */
-  void set typeArguments(List<Type2> typeArguments) {
-    this._typeArguments = typeArguments;
-  }
-
   FunctionTypeImpl substitute3(List<Type2> argumentTypes) => substitute2(argumentTypes, typeArguments);
 
   FunctionTypeImpl substitute2(List<Type2> argumentTypes, List<Type2> parameterTypes) {
@@ -6923,7 +6474,7 @@
     }
     Element element = this.element;
     FunctionTypeImpl newType = (element is ExecutableElement) ? new FunctionTypeImpl.con1(element as ExecutableElement) : new FunctionTypeImpl.con2(element as FunctionTypeAliasElement);
-    newType.typeArguments = TypeImpl.substitute(_typeArguments, argumentTypes, parameterTypes);
+    newType.typeArguments = TypeImpl.substitute(typeArguments, argumentTypes, parameterTypes);
     return newType;
   }
 
@@ -7269,7 +6820,7 @@
   /**
    * An array containing the actual types of the type arguments.
    */
-  List<Type2> _typeArguments = TypeImpl.EMPTY_ARRAY;
+  List<Type2> typeArguments = TypeImpl.EMPTY_ARRAY;
 
   /**
    * Initialize a newly created type to be declared by the given element.
@@ -7291,7 +6842,7 @@
       return false;
     }
     InterfaceTypeImpl otherType = object as InterfaceTypeImpl;
-    return (element == otherType.element) && JavaArrays.equals(_typeArguments, otherType._typeArguments);
+    return (element == otherType.element) && JavaArrays.equals(typeArguments, otherType.typeArguments);
   }
 
   List<PropertyAccessorElement> get accessors {
@@ -7345,7 +6896,7 @@
     int count = interfaces.length;
     List<InterfaceType> typedInterfaces = new List<InterfaceType>(count);
     for (int i = 0; i < count; i++) {
-      typedInterfaces[i] = interfaces[i].substitute2(_typeArguments, parameterTypes);
+      typedInterfaces[i] = interfaces[i].substitute2(typeArguments, parameterTypes);
     }
     return typedInterfaces;
   }
@@ -7414,7 +6965,7 @@
     int count = mixins.length;
     List<InterfaceType> typedMixins = new List<InterfaceType>(count);
     for (int i = 0; i < count; i++) {
-      typedMixins[i] = mixins[i].substitute2(_typeArguments, parameterTypes);
+      typedMixins[i] = mixins[i].substitute2(typeArguments, parameterTypes);
     }
     return typedMixins;
   }
@@ -7427,11 +6978,9 @@
     if (supertype == null) {
       return null;
     }
-    return supertype.substitute2(_typeArguments, classElement.type.typeArguments);
+    return supertype.substitute2(typeArguments, classElement.type.typeArguments);
   }
 
-  List<Type2> get typeArguments => _typeArguments;
-
   List<TypeParameterElement> get typeParameters => element.typeParameters;
 
   int get hashCode {
@@ -7602,26 +7151,17 @@
     return null;
   }
 
-  /**
-   * Set the actual types of the type arguments to those in the given array.
-   *
-   * @param typeArguments the actual types of the type arguments
-   */
-  void set typeArguments(List<Type2> typeArguments) {
-    this._typeArguments = typeArguments;
-  }
-
   InterfaceTypeImpl substitute4(List<Type2> argumentTypes) => substitute2(argumentTypes, typeArguments);
 
   InterfaceTypeImpl substitute2(List<Type2> argumentTypes, List<Type2> parameterTypes) {
     if (argumentTypes.length != parameterTypes.length) {
       throw new IllegalArgumentException("argumentTypes.length (${argumentTypes.length}) != parameterTypes.length (${parameterTypes.length})");
     }
-    if (argumentTypes.length == 0 || _typeArguments.length == 0) {
+    if (argumentTypes.length == 0 || typeArguments.length == 0) {
       return this;
     }
-    List<Type2> newTypeArguments = TypeImpl.substitute(_typeArguments, argumentTypes, parameterTypes);
-    if (JavaArrays.equals(newTypeArguments, _typeArguments)) {
+    List<Type2> newTypeArguments = TypeImpl.substitute(typeArguments, argumentTypes, parameterTypes);
+    if (JavaArrays.equals(newTypeArguments, typeArguments)) {
       return this;
     }
     InterfaceTypeImpl newType = new InterfaceTypeImpl.con1(element);
@@ -7631,14 +7171,14 @@
 
   void appendTo(JavaStringBuilder builder) {
     builder.append(name);
-    int argumentCount = _typeArguments.length;
+    int argumentCount = typeArguments.length;
     if (argumentCount > 0) {
       builder.append("<");
       for (int i = 0; i < argumentCount; i++) {
         if (i > 0) {
           builder.append(", ");
         }
-        (_typeArguments[i] as TypeImpl).appendTo(builder);
+        (typeArguments[i] as TypeImpl).appendTo(builder);
       }
       builder.append(">");
     }
@@ -7799,7 +7339,7 @@
   /**
    * The name of this type, or `null` if the type does not have a name.
    */
-  String _name;
+  final String name;
 
   /**
    * An empty array of types.
@@ -7812,9 +7352,8 @@
    * @param element the element representing the declaration of the type
    * @param name the name of the type
    */
-  TypeImpl(Element element, String name) {
+  TypeImpl(Element element, this.name) {
     this._element = element;
-    this._name = name;
   }
 
   String get displayName => name;
@@ -7823,8 +7362,6 @@
 
   Type2 getLeastUpperBound(Type2 type) => null;
 
-  String get name => _name;
-
   bool isAssignableTo(Type2 type) => isAssignableTo2(type, new Set<TypeImpl_TypePair>());
 
   /**
@@ -7913,10 +7450,10 @@
    * @param builder the builder to which the text is to be appended
    */
   void appendTo(JavaStringBuilder builder) {
-    if (_name == null) {
+    if (name == null) {
       builder.append("<unnamed type>");
     } else {
-      builder.append(_name);
+      builder.append(name);
     }
   }
 
@@ -8062,7 +7599,14 @@
   /**
    * The unique instance of this class.
    */
-  static final VoidTypeImpl instance = new VoidTypeImpl();
+  static VoidTypeImpl _INSTANCE = new VoidTypeImpl();
+
+  /**
+   * Return the unique instance of this class.
+   *
+   * @return the unique instance of this class
+   */
+  static VoidTypeImpl get instance => _INSTANCE;
 
   /**
    * Prevent the creation of instances of this class.
@@ -8071,6 +7615,8 @@
 
   bool operator ==(Object object) => identical(object, this);
 
+  int get hashCode => 2;
+
   bool get isVoid => true;
 
   VoidTypeImpl substitute2(List<Type2> argumentTypes, List<Type2> parameterTypes) => this;
diff --git a/pkg/analyzer/lib/src/generated/engine.dart b/pkg/analyzer/lib/src/generated/engine.dart
index 2e6b37e..8d7eed5 100644
--- a/pkg/analyzer/lib/src/generated/engine.dart
+++ b/pkg/analyzer/lib/src/generated/engine.dart
@@ -10,9 +10,9 @@
 import 'instrumentation.dart';
 import 'error.dart';
 import 'source.dart';
-import 'scanner.dart' show Token, Scanner, CharSequenceReader;
+import 'scanner.dart' show Token, Scanner, CharSequenceReader, CharacterReader, IncrementalScanner;
 import 'ast.dart';
-import 'parser.dart' show Parser;
+import 'parser.dart' show Parser, IncrementalParser;
 import 'sdk.dart' show DartSdk;
 import 'element.dart';
 import 'resolver.dart';
@@ -43,7 +43,14 @@
   /**
    * The unique instance of this class.
    */
-  static final AnalysisEngine instance = new AnalysisEngine();
+  static AnalysisEngine _UniqueInstance = new AnalysisEngine();
+
+  /**
+   * Return the unique instance of this class.
+   *
+   * @return the unique instance of this class
+   */
+  static AnalysisEngine get instance => _UniqueInstance;
 
   /**
    * Return `true` if the given file name is assumed to contain Dart source code.
@@ -691,6 +698,13 @@
  */
 abstract class AnalysisOptions {
   /**
+   * Return `true` if analysis is to parse and analyze function bodies.
+   *
+   * @return `true` if analysis is to parse and analyzer function bodies
+   */
+  bool get analyzeFunctionBodies;
+
+  /**
    * Return the maximum number of sources for which AST structures should be kept in the cache.
    *
    * @return the maximum number of sources for which AST structures should be kept in the cache
@@ -711,6 +725,20 @@
    * @return `true` if analysis is to generate hint results
    */
   bool get hint;
+
+  /**
+   * Return `true` if incremental analysis should be used.
+   *
+   * @return `true` if incremental analysis should be used
+   */
+  bool get incremental;
+
+  /**
+   * Return `true` if analysis is to parse comments.
+   *
+   * @return `true` if analysis is to parse comments
+   */
+  bool get preserveComments;
 }
 
 /**
@@ -721,22 +749,22 @@
    * The change notices associated with this result, or `null` if there were no changes and
    * there is no more work to be done.
    */
-  List<ChangeNotice> changeNotices;
+  List<ChangeNotice> _notices;
 
   /**
    * The number of milliseconds required to determine which task was to be performed.
    */
-  int getTime = 0;
+  final int getTime;
 
   /**
    * The name of the class of the task that was performed.
    */
-  String taskClassName;
+  final String taskClassName;
 
   /**
    * The number of milliseconds required to perform the task.
    */
-  int performTime = 0;
+  final int performTime;
 
   /**
    * Initialize a newly created analysis result to have the given values.
@@ -746,12 +774,17 @@
    * @param taskClassName the name of the class of the task that was performed
    * @param performTime the number of milliseconds required to perform the task
    */
-  AnalysisResult(List<ChangeNotice> notices, int getTime, String taskClassName, int performTime) {
-    this.changeNotices = notices;
-    this.getTime = getTime;
-    this.taskClassName = taskClassName;
-    this.performTime = performTime;
+  AnalysisResult(List<ChangeNotice> notices, this.getTime, this.taskClassName, this.performTime) {
+    this._notices = notices;
   }
+
+  /**
+   * Return the change notices associated with this result, or `null` if there were no changes
+   * and there is no more work to be done.
+   *
+   * @return the change notices associated with this result
+   */
+  List<ChangeNotice> get changeNotices => _notices;
 }
 
 /**
@@ -2756,7 +2789,7 @@
   /**
    * The exception that caused one or more values to have a state of [CacheState#ERROR].
    */
-  AnalysisException _exception;
+  AnalysisException exception;
 
   /**
    * The state of the cached line information.
@@ -2769,14 +2802,6 @@
    */
   LineInfo _lineInfo;
 
-  /**
-   * Return the exception that caused one or more values to have a state of [CacheState#ERROR]
-   * .
-   *
-   * @return the exception that caused one or more values to be uncomputable
-   */
-  AnalysisException get exception => _exception;
-
   int get modificationTime => _modificationTime;
 
   CacheState getState(DataDescriptor descriptor) {
@@ -2796,16 +2821,6 @@
   }
 
   /**
-   * Set the exception that caused one or more values to have a state of [CacheState#ERROR] to
-   * the given exception.
-   *
-   * @param exception the exception that caused one or more values to be uncomputable
-   */
-  void set exception(AnalysisException exception) {
-    this._exception = exception;
-  }
-
-  /**
    * Set the most recent time at which the state of the source matched the state represented by this
    * entry to the given time.
    *
@@ -2935,7 +2950,7 @@
 }
 
 class AnalysisContentStatisticsImpl_CacheRowImpl implements AnalysisContentStatistics_CacheRow {
-  String _name;
+  final String name;
 
   int _errorCount = 0;
 
@@ -2947,11 +2962,9 @@
 
   int _validCount = 0;
 
-  AnalysisContentStatisticsImpl_CacheRowImpl(String name) {
-    this._name = name;
-  }
+  AnalysisContentStatisticsImpl_CacheRowImpl(this.name);
 
-  bool operator ==(Object obj) => obj is AnalysisContentStatisticsImpl_CacheRowImpl && (obj as AnalysisContentStatisticsImpl_CacheRowImpl)._name == _name;
+  bool operator ==(Object obj) => obj is AnalysisContentStatisticsImpl_CacheRowImpl && (obj as AnalysisContentStatisticsImpl_CacheRowImpl).name == name;
 
   int get errorCount => _errorCount;
 
@@ -2961,11 +2974,9 @@
 
   int get invalidCount => _invalidCount;
 
-  String get name => _name;
-
   int get validCount => _validCount;
 
-  int get hashCode => _name.hashCode;
+  int get hashCode => name.hashCode;
 
   void incState(CacheState state) {
     if (identical(state, CacheState.ERROR)) {
@@ -3564,6 +3575,11 @@
     return statistics;
   }
 
+  TypeProvider get typeProvider {
+    Source coreSource = sourceFactory.forUri(DartSdk.DART_CORE);
+    return new TypeProviderImpl(computeLibraryElement(coreSource));
+  }
+
   TimestampedData<CompilationUnit> internalResolveCompilationUnit(Source unitSource, LibraryElement libraryElement) {
     DartEntry dartEntry = getReadableDartEntry(unitSource);
     if (dartEntry == null) {
@@ -3663,7 +3679,7 @@
 
   void set analysisOptions(AnalysisOptions options) {
     {
-      bool needsRecompute = this._options.dart2jsHint != options.dart2jsHint || (this._options.hint && !options.hint);
+      bool needsRecompute = this._options.analyzeFunctionBodies != options.analyzeFunctionBodies || this._options.dart2jsHint != options.dart2jsHint || (this._options.hint && !options.hint) || this._options.preserveComments != options.preserveComments;
       int cacheSize = options.cacheSize;
       if (this._options.cacheSize != cacheSize) {
         this._options.cacheSize = cacheSize;
@@ -3675,8 +3691,11 @@
           _priorityOrder = newPriorityOrder;
         }
       }
+      this._options.analyzeFunctionBodies = options.analyzeFunctionBodies;
       this._options.dart2jsHint = options.dart2jsHint;
       this._options.hint = options.hint;
+      this._options.incremental = options.incremental;
+      this._options.preserveComments = options.preserveComments;
       if (needsRecompute) {
         invalidateAllResolutionInformation();
       }
@@ -3707,7 +3726,9 @@
       String originalContents = _sourceFactory.setContents(source, contents);
       if (contents != null) {
         if (contents != originalContents) {
-          _incrementalAnalysisCache = IncrementalAnalysisCache.update(_incrementalAnalysisCache, source, originalContents, contents, offset, oldLength, newLength, getReadableSourceEntry(source));
+          if (_options.incremental) {
+            _incrementalAnalysisCache = IncrementalAnalysisCache.update(_incrementalAnalysisCache, source, originalContents, contents, offset, oldLength, newLength, getReadableSourceEntry(source));
+          }
           sourceChanged(source);
         }
       } else if (originalContents != null) {
@@ -3759,6 +3780,111 @@
   }
 
   /**
+   * Record the results produced by performing a [ResolveDartLibraryTask]. If the results were
+   * computed from data that is now out-of-date, then the results will not be recorded.
+   *
+   * @param task the task that was performed
+   * @return an entry containing the computed results
+   * @throws AnalysisException if the results could not be recorded
+   */
+  DartEntry recordResolveDartLibraryTaskResults(ResolveDartLibraryTask task) {
+    LibraryResolver resolver = task.libraryResolver;
+    AnalysisException thrownException = task.exception;
+    DartEntry unitEntry = null;
+    Source unitSource = task.unitSource;
+    if (resolver != null) {
+      Set<Library> resolvedLibraries = resolver.resolvedLibraries;
+      if (resolvedLibraries == null) {
+        unitEntry = getReadableDartEntry(unitSource);
+        if (unitEntry == null) {
+          throw new AnalysisException.con1("A Dart file became a non-Dart file: ${unitSource.fullName}");
+        }
+        DartEntryImpl dartCopy = unitEntry.writableCopy;
+        dartCopy.recordResolutionError();
+        dartCopy.exception = thrownException;
+        _cache.put(unitSource, dartCopy);
+        if (thrownException != null) {
+          throw thrownException;
+        }
+        return dartCopy;
+      }
+      {
+        if (allModificationTimesMatch(resolvedLibraries)) {
+          Source htmlSource = sourceFactory.forUri(DartSdk.DART_HTML);
+          RecordingErrorListener errorListener = resolver.errorListener;
+          for (Library library in resolvedLibraries) {
+            Source librarySource = library.librarySource;
+            for (Source source in library.compilationUnitSources) {
+              CompilationUnit unit = library.getAST(source);
+              List<AnalysisError> errors = errorListener.getErrors2(source);
+              LineInfo lineInfo = getLineInfo(source);
+              DartEntry dartEntry = _cache.get(source) as DartEntry;
+              int sourceTime = source.modificationStamp;
+              if (dartEntry.modificationTime != sourceTime) {
+                sourceChanged(source);
+                dartEntry = getReadableDartEntry(source);
+                if (dartEntry == null) {
+                  throw new AnalysisException.con1("A Dart file became a non-Dart file: ${source.fullName}");
+                }
+              }
+              DartEntryImpl dartCopy = dartEntry.writableCopy;
+              if (thrownException == null) {
+                dartCopy.setValue(SourceEntry.LINE_INFO, lineInfo);
+                dartCopy.setState(DartEntry.PARSED_UNIT, CacheState.FLUSHED);
+                dartCopy.setValue2(DartEntry.RESOLVED_UNIT, librarySource, unit);
+                dartCopy.setValue2(DartEntry.RESOLUTION_ERRORS, librarySource, errors);
+                if (identical(source, librarySource)) {
+                  recordElementData(dartCopy, library.libraryElement, htmlSource);
+                }
+              } else {
+                dartCopy.recordResolutionError();
+              }
+              dartCopy.exception = thrownException;
+              _cache.put(source, dartCopy);
+              if (source == unitSource) {
+                unitEntry = dartCopy;
+              }
+              ChangeNoticeImpl notice = getNotice(source);
+              notice.compilationUnit = unit;
+              notice.setErrors(dartCopy.allErrors, lineInfo);
+            }
+          }
+        } else {
+          for (Library library in resolvedLibraries) {
+            for (Source source in library.compilationUnitSources) {
+              DartEntry dartEntry = getReadableDartEntry(source);
+              if (dartEntry != null) {
+                int resultTime = library.getModificationTime(source);
+                DartEntryImpl dartCopy = dartEntry.writableCopy;
+                if (thrownException == null || resultTime >= 0) {
+                  dartCopy.recordResolutionNotInProcess();
+                } else {
+                  dartCopy.recordResolutionError();
+                }
+                dartCopy.exception = thrownException;
+                _cache.put(source, dartCopy);
+                if (source == unitSource) {
+                  unitEntry = dartCopy;
+                }
+              }
+            }
+          }
+        }
+      }
+    }
+    if (thrownException != null) {
+      throw thrownException;
+    }
+    if (unitEntry == null) {
+      unitEntry = getReadableDartEntry(unitSource);
+      if (unitEntry == null) {
+        throw new AnalysisException.con1("A Dart file became a non-Dart file: ${unitSource.fullName}");
+      }
+    }
+    return unitEntry;
+  }
+
+  /**
    * Add all of the sources contained in the given source container to the given list of sources.
    *
    * Note: This method must only be invoked while we are synchronized on [cacheLock].
@@ -4214,6 +4340,7 @@
       if (_incrementalAnalysisCache != null && _incrementalAnalysisCache.hasWork()) {
         AnalysisTask task = new IncrementalAnalysisTask(this, _incrementalAnalysisCache);
         _incrementalAnalysisCache = null;
+        return task;
       }
       for (Source source in _priorityOrder) {
         AnalysisTask task = getNextTaskAnalysisTask2(source, _cache.get(source), true, hintsEnabled);
@@ -4917,111 +5044,6 @@
   }
 
   /**
-   * Record the results produced by performing a [ResolveDartLibraryTask]. If the results were
-   * computed from data that is now out-of-date, then the results will not be recorded.
-   *
-   * @param task the task that was performed
-   * @return an entry containing the computed results
-   * @throws AnalysisException if the results could not be recorded
-   */
-  DartEntry recordResolveDartLibraryTaskResults(ResolveDartLibraryTask task) {
-    LibraryResolver resolver = task.libraryResolver;
-    AnalysisException thrownException = task.exception;
-    DartEntry unitEntry = null;
-    Source unitSource = task.unitSource;
-    if (resolver != null) {
-      Set<Library> resolvedLibraries = resolver.resolvedLibraries;
-      if (resolvedLibraries == null) {
-        unitEntry = getReadableDartEntry(unitSource);
-        if (unitEntry == null) {
-          throw new AnalysisException.con1("A Dart file became a non-Dart file: ${unitSource.fullName}");
-        }
-        DartEntryImpl dartCopy = unitEntry.writableCopy;
-        dartCopy.recordResolutionError();
-        dartCopy.exception = thrownException;
-        _cache.put(unitSource, dartCopy);
-        if (thrownException != null) {
-          throw thrownException;
-        }
-        return dartCopy;
-      }
-      {
-        if (allModificationTimesMatch(resolvedLibraries)) {
-          Source htmlSource = sourceFactory.forUri(DartSdk.DART_HTML);
-          RecordingErrorListener errorListener = resolver.errorListener;
-          for (Library library in resolvedLibraries) {
-            Source librarySource = library.librarySource;
-            for (Source source in library.compilationUnitSources) {
-              CompilationUnit unit = library.getAST(source);
-              List<AnalysisError> errors = errorListener.getErrors2(source);
-              LineInfo lineInfo = getLineInfo(source);
-              DartEntry dartEntry = _cache.get(source) as DartEntry;
-              int sourceTime = source.modificationStamp;
-              if (dartEntry.modificationTime != sourceTime) {
-                sourceChanged(source);
-                dartEntry = getReadableDartEntry(source);
-                if (dartEntry == null) {
-                  throw new AnalysisException.con1("A Dart file became a non-Dart file: ${source.fullName}");
-                }
-              }
-              DartEntryImpl dartCopy = dartEntry.writableCopy;
-              if (thrownException == null) {
-                dartCopy.setValue(SourceEntry.LINE_INFO, lineInfo);
-                dartCopy.setState(DartEntry.PARSED_UNIT, CacheState.FLUSHED);
-                dartCopy.setValue2(DartEntry.RESOLVED_UNIT, librarySource, unit);
-                dartCopy.setValue2(DartEntry.RESOLUTION_ERRORS, librarySource, errors);
-                if (identical(source, librarySource)) {
-                  recordElementData(dartCopy, library.libraryElement, htmlSource);
-                }
-              } else {
-                dartCopy.recordResolutionError();
-              }
-              dartCopy.exception = thrownException;
-              _cache.put(source, dartCopy);
-              if (source == unitSource) {
-                unitEntry = dartCopy;
-              }
-              ChangeNoticeImpl notice = getNotice(source);
-              notice.compilationUnit = unit;
-              notice.setErrors(dartCopy.allErrors, lineInfo);
-            }
-          }
-        } else {
-          for (Library library in resolvedLibraries) {
-            for (Source source in library.compilationUnitSources) {
-              DartEntry dartEntry = getReadableDartEntry(source);
-              if (dartEntry != null) {
-                int resultTime = library.getModificationTime(source);
-                DartEntryImpl dartCopy = dartEntry.writableCopy;
-                if (thrownException == null || resultTime >= 0) {
-                  dartCopy.recordResolutionNotInProcess();
-                } else {
-                  dartCopy.recordResolutionError();
-                }
-                dartCopy.exception = thrownException;
-                _cache.put(source, dartCopy);
-                if (source == unitSource) {
-                  unitEntry = dartCopy;
-                }
-              }
-            }
-          }
-        }
-      }
-    }
-    if (thrownException != null) {
-      throw thrownException;
-    }
-    if (unitEntry == null) {
-      unitEntry = getReadableDartEntry(unitSource);
-      if (unitEntry == null) {
-        throw new AnalysisException.con1("A Dart file became a non-Dart file: ${unitSource.fullName}");
-      }
-    }
-    return unitEntry;
-  }
-
-  /**
    * Record the results produced by performing a [ResolveDartUnitTask]. If the results were
    * computed from data that is now out-of-date, then the results will not be recorded.
    *
@@ -5172,6 +5194,9 @@
    */
   void sourceChanged(Source source) {
     SourceEntry sourceEntry = _cache.get(source);
+    if (sourceEntry == null || sourceEntry.modificationTime == source.modificationStamp) {
+      return;
+    }
     if (sourceEntry is HtmlEntry) {
       HtmlEntryImpl htmlCopy = (sourceEntry as HtmlEntry).writableCopy;
       htmlCopy.modificationTime = source.modificationStamp;
@@ -5276,12 +5301,12 @@
   /**
    * The analysis errors associated with a source, or `null` if there are no errors.
    */
-  List<AnalysisError> _errors;
+  final List<AnalysisError> errors;
 
   /**
    * The line information associated with the errors, or `null` if there are no errors.
    */
-  LineInfo _lineInfo;
+  final LineInfo lineInfo;
 
   /**
    * Initialize an newly created error info with the errors and line information
@@ -5289,25 +5314,7 @@
    * @param errors the errors as a result of analysis
    * @param lineinfo the line info for the errors
    */
-  AnalysisErrorInfoImpl(List<AnalysisError> errors, LineInfo lineInfo) {
-    this._errors = errors;
-    this._lineInfo = lineInfo;
-  }
-
-  /**
-   * Return the errors of analysis, or `null` if there were no errors.
-   *
-   * @return the errors as a result of the analysis
-   */
-  List<AnalysisError> get errors => _errors;
-
-  /**
-   * Return the line information associated with the errors, or `null` if there were no
-   * errors.
-   *
-   * @return the line information associated with the errors
-   */
-  LineInfo get lineInfo => _lineInfo;
+  AnalysisErrorInfoImpl(this.errors, this.lineInfo);
 }
 
 /**
@@ -5323,18 +5330,33 @@
   /**
    * The maximum number of sources for which AST structures should be kept in the cache.
    */
-  int _cacheSize = DEFAULT_CACHE_SIZE;
+  int cacheSize = DEFAULT_CACHE_SIZE;
+
+  /**
+   * A flag indicating whether analysis is to parse and analyze function bodies.
+   */
+  bool analyzeFunctionBodies = true;
 
   /**
    * A flag indicating whether analysis is to generate dart2js related hint results.
    */
-  bool _dart2jsHint = true;
+  bool dart2jsHint = true;
 
   /**
    * A flag indicating whether analysis is to generate hint results (e.g. type inference based
    * information and pub best practices).
    */
-  bool _hint = true;
+  bool hint = true;
+
+  /**
+   * A flag indicating whether incremental analysis should be used.
+   */
+  bool incremental = false;
+
+  /**
+   * flag indicating whether analysis is to parse comments.
+   */
+  bool preserveComments = true;
 
   /**
    * Initialize a newly created set of analysis options to have their default values.
@@ -5348,45 +5370,10 @@
    * @param options the analysis options whose values are being copied
    */
   AnalysisOptionsImpl.con1(AnalysisOptions options) {
-    _cacheSize = options.cacheSize;
-    _dart2jsHint = options.dart2jsHint;
-    _hint = options.hint;
-  }
-
-  int get cacheSize => _cacheSize;
-
-  bool get dart2jsHint => _dart2jsHint;
-
-  bool get hint => _hint;
-
-  /**
-   * Set the maximum number of sources for which AST structures should be kept in the cache to the
-   * given size.
-   *
-   * @param cacheSize the maximum number of sources for which AST structures should be kept in the
-   *          cache
-   */
-  void set cacheSize(int cacheSize) {
-    this._cacheSize = cacheSize;
-  }
-
-  /**
-   * Set whether analysis is to generate dart2js related hint results.
-   *
-   * @param hint `true` if analysis is to generate dart2js related hint results
-   */
-  void set dart2jsHint(bool dart2jsHints) {
-    this._dart2jsHint = dart2jsHints;
-  }
-
-  /**
-   * Set whether analysis is to generate hint results (e.g. type inference based information and pub
-   * best practices).
-   *
-   * @param hint `true` if analysis is to generate hint results
-   */
-  void set hint(bool hint) {
-    this._hint = hint;
+    cacheSize = options.cacheSize;
+    dart2jsHint = options.dart2jsHint;
+    hint = options.hint;
+    incremental = options.incremental;
   }
 }
 
@@ -5400,13 +5387,13 @@
   /**
    * The source for which the result is being reported.
    */
-  Source _source;
+  final Source source;
 
   /**
    * The fully resolved AST that changed as a result of the analysis, or `null` if the AST was
    * not changed.
    */
-  CompilationUnit _compilationUnit;
+  CompilationUnit compilationUnit;
 
   /**
    * The errors that changed as a result of the analysis, or `null` if errors were not
@@ -5429,17 +5416,7 @@
    *
    * @param source the source for which the change is being reported
    */
-  ChangeNoticeImpl(Source source) {
-    this._source = source;
-  }
-
-  /**
-   * Return the fully resolved AST that changed as a result of the analysis, or `null` if the
-   * AST was not changed.
-   *
-   * @return the fully resolved AST that changed as a result of the analysis
-   */
-  CompilationUnit get compilationUnit => _compilationUnit;
+  ChangeNoticeImpl(this.source);
 
   /**
    * Return the errors that changed as a result of the analysis, or `null` if errors were not
@@ -5458,22 +5435,6 @@
   LineInfo get lineInfo => _lineInfo;
 
   /**
-   * Return the source for which the result is being reported.
-   *
-   * @return the source for which the result is being reported
-   */
-  Source get source => _source;
-
-  /**
-   * Set the fully resolved AST that changed as a result of the analysis to the given AST.
-   *
-   * @param compilationUnit the fully resolved AST that changed as a result of the analysis
-   */
-  void set compilationUnit(CompilationUnit compilationUnit) {
-    this._compilationUnit = compilationUnit;
-  }
-
-  /**
    * Set the errors that changed as a result of the analysis to the given errors and set the line
    * information to the given line information.
    *
@@ -5484,11 +5445,11 @@
     this._errors = errors;
     this._lineInfo = lineInfo;
     if (lineInfo == null) {
-      AnalysisEngine.instance.logger.logError2("No line info: ${_source}", new JavaException());
+      AnalysisEngine.instance.logger.logError2("No line info: ${source}", new JavaException());
     }
   }
 
-  String toString() => "Changes for ${_source.fullName}";
+  String toString() => "Changes for ${source.fullName}";
 }
 
 /**
@@ -5795,7 +5756,7 @@
    */
   static IncrementalAnalysisCache cacheResult(IncrementalAnalysisCache cache, CompilationUnit unit) {
     if (cache != null && unit != null) {
-      return new IncrementalAnalysisCache(cache.librarySource, cache.source, unit, cache.newContents, cache.newContents, 0, 0, 0);
+      return new IncrementalAnalysisCache(cache.librarySource, cache.source, unit, cache._newContents, cache._newContents, 0, 0, 0);
     }
     return null;
   }
@@ -5854,17 +5815,17 @@
       }
       return new IncrementalAnalysisCache(librarySource, source, unit, oldContents, newContents, offset, oldLength, newLength);
     }
-    if (cache.oldLength == 0 && cache.newLength == 0) {
-      cache.offset = offset;
-      cache.oldLength = oldLength;
-      cache.newLength = newLength;
+    if (cache._oldLength == 0 && cache._newLength == 0) {
+      cache._offset = offset;
+      cache._oldLength = oldLength;
+      cache._newLength = newLength;
     } else {
-      if (cache.offset > offset || offset > cache.offset + cache.newLength) {
+      if (cache._offset > offset || offset > cache._offset + cache._newLength) {
         return null;
       }
-      cache.newLength += newLength - oldLength;
+      cache._newLength += newLength - oldLength;
     }
-    cache.newContents = newContents;
+    cache._newContents = newContents;
     return cache;
   }
 
@@ -5887,39 +5848,63 @@
     return cache;
   }
 
-  Source librarySource;
+  final Source librarySource;
 
-  Source source;
+  final Source source;
 
-  String oldContents;
+  final String oldContents;
 
-  CompilationUnit resolvedUnit;
+  final CompilationUnit resolvedUnit;
 
-  String newContents;
+  String _newContents;
 
-  int offset = 0;
+  int _offset = 0;
 
-  int oldLength = 0;
+  int _oldLength = 0;
 
-  int newLength = 0;
+  int _newLength = 0;
 
-  IncrementalAnalysisCache(Source librarySource, Source source, CompilationUnit resolvedUnit, String oldContents, String newContents, int offset, int oldLength, int newLength) {
-    this.librarySource = librarySource;
-    this.source = source;
-    this.resolvedUnit = resolvedUnit;
-    this.oldContents = oldContents;
-    this.newContents = newContents;
-    this.offset = offset;
-    this.oldLength = oldLength;
-    this.newLength = newLength;
+  IncrementalAnalysisCache(this.librarySource, this.source, this.resolvedUnit, this.oldContents, String newContents, int offset, int oldLength, int newLength) {
+    this._newContents = newContents;
+    this._offset = offset;
+    this._oldLength = oldLength;
+    this._newLength = newLength;
   }
 
   /**
+   * Return the current contents for the receiver's source.
+   *
+   * @return the contents (not `null`)
+   */
+  String get newContents => _newContents;
+
+  /**
+   * Return the number of characters in the replacement text.
+   *
+   * @return the replacement length (zero or greater)
+   */
+  int get newLength => _newLength;
+
+  /**
+   * Return the character position of the first changed character.
+   *
+   * @return the offset (zero or greater)
+   */
+  int get offset => _offset;
+
+  /**
+   * Return the number of characters that were replaced.
+   *
+   * @return the replaced length (zero or greater)
+   */
+  int get oldLength => _oldLength;
+
+  /**
    * Determine if the cache contains source changes that need to be analyzed
    *
    * @return `true` if the cache contains changes to be analyzed, else `false`
    */
-  bool hasWork() => oldLength > 0 || newLength > 0;
+  bool hasWork() => _oldLength > 0 || _newLength > 0;
 }
 
 /**
@@ -5948,7 +5933,7 @@
   /**
    * The analysis context to which all of the non-instrumentation work is delegated.
    */
-  InternalAnalysisContext basis;
+  InternalAnalysisContext _basis;
 
   /**
    * Create a new [InstrumentedAnalysisContextImpl] which wraps a new
@@ -5963,18 +5948,18 @@
    * @param context some [InstrumentedAnalysisContext] to wrap and instrument
    */
   InstrumentedAnalysisContextImpl.con1(InternalAnalysisContext context) {
-    basis = context;
+    _basis = context;
   }
 
   void addSourceInfo(Source source, SourceEntry info) {
-    basis.addSourceInfo(source, info);
+    _basis.addSourceInfo(source, info);
   }
 
   void applyChanges(ChangeSet changeSet) {
     InstrumentationBuilder instrumentation = Instrumentation.builder2("Analysis-applyChanges");
     try {
       instrumentation.metric3("contextId", _contextId);
-      basis.applyChanges(changeSet);
+      _basis.applyChanges(changeSet);
     } finally {
       instrumentation.log();
     }
@@ -5984,7 +5969,7 @@
     InstrumentationBuilder instrumentation = Instrumentation.builder2("Analysis-computeDocumentationComment");
     try {
       instrumentation.metric3("contextId", _contextId);
-      return basis.computeDocumentationComment(element);
+      return _basis.computeDocumentationComment(element);
     } finally {
       instrumentation.log();
     }
@@ -5994,7 +5979,7 @@
     InstrumentationBuilder instrumentation = Instrumentation.builder2("Analysis-computeErrors");
     try {
       instrumentation.metric3("contextId", _contextId);
-      List<AnalysisError> errors = basis.computeErrors(source);
+      List<AnalysisError> errors = _basis.computeErrors(source);
       instrumentation.metric2("Errors-count", errors.length);
       return errors;
     } finally {
@@ -6006,7 +5991,7 @@
     InstrumentationBuilder instrumentation = Instrumentation.builder2("Analysis-computeExportedLibraries");
     try {
       instrumentation.metric3("contextId", _contextId);
-      return basis.computeExportedLibraries(source);
+      return _basis.computeExportedLibraries(source);
     } finally {
       instrumentation.log();
     }
@@ -6016,7 +6001,7 @@
     InstrumentationBuilder instrumentation = Instrumentation.builder2("Analysis-computeHtmlElement");
     try {
       instrumentation.metric3("contextId", _contextId);
-      return basis.computeHtmlElement(source);
+      return _basis.computeHtmlElement(source);
     } on AnalysisException catch (e) {
       recordAnalysisException(instrumentation, e);
       throw e;
@@ -6029,7 +6014,7 @@
     InstrumentationBuilder instrumentation = Instrumentation.builder2("Analysis-computeImportedLibraries");
     try {
       instrumentation.metric3("contextId", _contextId);
-      return basis.computeImportedLibraries(source);
+      return _basis.computeImportedLibraries(source);
     } finally {
       instrumentation.log();
     }
@@ -6039,7 +6024,7 @@
     InstrumentationBuilder instrumentation = Instrumentation.builder2("Analysis-computeKindOf");
     try {
       instrumentation.metric3("contextId", _contextId);
-      return basis.computeKindOf(source);
+      return _basis.computeKindOf(source);
     } finally {
       instrumentation.log();
     }
@@ -6049,7 +6034,7 @@
     InstrumentationBuilder instrumentation = Instrumentation.builder2("Analysis-computeLibraryElement");
     try {
       instrumentation.metric3("contextId", _contextId);
-      return basis.computeLibraryElement(source);
+      return _basis.computeLibraryElement(source);
     } on AnalysisException catch (e) {
       recordAnalysisException(instrumentation, e);
       throw e;
@@ -6062,7 +6047,7 @@
     InstrumentationBuilder instrumentation = Instrumentation.builder2("Analysis-computeLineInfo");
     try {
       instrumentation.metric3("contextId", _contextId);
-      return basis.computeLineInfo(source);
+      return _basis.computeLineInfo(source);
     } on AnalysisException catch (e) {
       recordAnalysisException(instrumentation, e);
       throw e;
@@ -6071,39 +6056,44 @@
     }
   }
 
-  ResolvableCompilationUnit computeResolvableCompilationUnit(Source source) => basis.computeResolvableCompilationUnit(source);
+  ResolvableCompilationUnit computeResolvableCompilationUnit(Source source) => _basis.computeResolvableCompilationUnit(source);
 
-  ResolvableHtmlUnit computeResolvableHtmlUnit(Source source) => basis.computeResolvableHtmlUnit(source);
+  ResolvableHtmlUnit computeResolvableHtmlUnit(Source source) => _basis.computeResolvableHtmlUnit(source);
 
   AnalysisContext extractContext(SourceContainer container) {
     InstrumentationBuilder instrumentation = Instrumentation.builder2("Analysis-extractContext");
     try {
       instrumentation.metric3("contextId", _contextId);
       InstrumentedAnalysisContextImpl newContext = new InstrumentedAnalysisContextImpl();
-      basis.extractContextInto(container, newContext.basis);
+      _basis.extractContextInto(container, newContext._basis);
       return newContext;
     } finally {
       instrumentation.log();
     }
   }
 
-  InternalAnalysisContext extractContextInto(SourceContainer container, InternalAnalysisContext newContext) => basis.extractContextInto(container, newContext);
+  InternalAnalysisContext extractContextInto(SourceContainer container, InternalAnalysisContext newContext) => _basis.extractContextInto(container, newContext);
 
   AnalysisOptions get analysisOptions {
     InstrumentationBuilder instrumentation = Instrumentation.builder2("Analysis-getAnalysisOptions");
     try {
       instrumentation.metric3("contextId", _contextId);
-      return basis.analysisOptions;
+      return _basis.analysisOptions;
     } finally {
       instrumentation.log();
     }
   }
 
+  /**
+   * @return the underlying [AnalysisContext].
+   */
+  AnalysisContext get basis => _basis;
+
   Element getElement(ElementLocation location) {
     InstrumentationBuilder instrumentation = Instrumentation.builder2("Analysis-getElement");
     try {
       instrumentation.metric3("contextId", _contextId);
-      return basis.getElement(location);
+      return _basis.getElement(location);
     } finally {
       instrumentation.log();
     }
@@ -6113,7 +6103,7 @@
     InstrumentationBuilder instrumentation = Instrumentation.builder2("Analysis-getErrors");
     try {
       instrumentation.metric3("contextId", _contextId);
-      AnalysisErrorInfo ret = basis.getErrors(source);
+      AnalysisErrorInfo ret = _basis.getErrors(source);
       if (ret != null) {
         instrumentation.metric2("Errors-count", ret.errors.length);
       }
@@ -6127,7 +6117,7 @@
     InstrumentationBuilder instrumentation = Instrumentation.builder2("Analysis-getHtmlElement");
     try {
       instrumentation.metric3("contextId", _contextId);
-      return basis.getHtmlElement(source);
+      return _basis.getHtmlElement(source);
     } finally {
       instrumentation.log();
     }
@@ -6137,7 +6127,7 @@
     InstrumentationBuilder instrumentation = Instrumentation.builder2("Analysis-getHtmlFilesReferencing");
     try {
       instrumentation.metric3("contextId", _contextId);
-      List<Source> ret = basis.getHtmlFilesReferencing(source);
+      List<Source> ret = _basis.getHtmlFilesReferencing(source);
       if (ret != null) {
         instrumentation.metric2("Source-count", ret.length);
       }
@@ -6151,7 +6141,7 @@
     InstrumentationBuilder instrumentation = Instrumentation.builder2("Analysis-getHtmlSources");
     try {
       instrumentation.metric3("contextId", _contextId);
-      List<Source> ret = basis.htmlSources;
+      List<Source> ret = _basis.htmlSources;
       if (ret != null) {
         instrumentation.metric2("Source-count", ret.length);
       }
@@ -6165,7 +6155,7 @@
     InstrumentationBuilder instrumentation = Instrumentation.builder2("Analysis-getKindOf");
     try {
       instrumentation.metric3("contextId", _contextId);
-      return basis.getKindOf(source);
+      return _basis.getKindOf(source);
     } finally {
       instrumentation.log();
     }
@@ -6175,7 +6165,7 @@
     InstrumentationBuilder instrumentation = Instrumentation.builder2("Analysis-getLaunchableClientLibrarySources");
     try {
       instrumentation.metric3("contextId", _contextId);
-      List<Source> ret = basis.launchableClientLibrarySources;
+      List<Source> ret = _basis.launchableClientLibrarySources;
       if (ret != null) {
         instrumentation.metric2("Source-count", ret.length);
       }
@@ -6189,7 +6179,7 @@
     InstrumentationBuilder instrumentation = Instrumentation.builder2("Analysis-getLaunchableServerLibrarySources");
     try {
       instrumentation.metric3("contextId", _contextId);
-      List<Source> ret = basis.launchableServerLibrarySources;
+      List<Source> ret = _basis.launchableServerLibrarySources;
       if (ret != null) {
         instrumentation.metric2("Source-count", ret.length);
       }
@@ -6203,7 +6193,7 @@
     InstrumentationBuilder instrumentation = Instrumentation.builder2("Analysis-getLibrariesContaining");
     try {
       instrumentation.metric3("contextId", _contextId);
-      List<Source> ret = basis.getLibrariesContaining(source);
+      List<Source> ret = _basis.getLibrariesContaining(source);
       if (ret != null) {
         instrumentation.metric2("Source-count", ret.length);
       }
@@ -6217,7 +6207,7 @@
     InstrumentationBuilder instrumentation = Instrumentation.builder2("Analysis-getLibrariesDependingOn");
     try {
       instrumentation.metric3("contextId", _contextId);
-      List<Source> ret = basis.getLibrariesDependingOn(librarySource);
+      List<Source> ret = _basis.getLibrariesDependingOn(librarySource);
       if (ret != null) {
         instrumentation.metric2("Source-count", ret.length);
       }
@@ -6231,7 +6221,7 @@
     InstrumentationBuilder instrumentation = Instrumentation.builder2("Analysis-getLibraryElement");
     try {
       instrumentation.metric3("contextId", _contextId);
-      return basis.getLibraryElement(source);
+      return _basis.getLibraryElement(source);
     } finally {
       instrumentation.log();
     }
@@ -6241,7 +6231,7 @@
     InstrumentationBuilder instrumentation = Instrumentation.builder2("Analysis-getLibrarySources");
     try {
       instrumentation.metric3("contextId", _contextId);
-      List<Source> ret = basis.librarySources;
+      List<Source> ret = _basis.librarySources;
       if (ret != null) {
         instrumentation.metric2("Source-count", ret.length);
       }
@@ -6255,23 +6245,23 @@
     InstrumentationBuilder instrumentation = Instrumentation.builder2("Analysis-getLineInfo");
     try {
       instrumentation.metric3("contextId", _contextId);
-      return basis.getLineInfo(source);
+      return _basis.getLineInfo(source);
     } finally {
       instrumentation.log();
     }
   }
 
-  Namespace getPublicNamespace(LibraryElement library) => basis.getPublicNamespace(library);
+  Namespace getPublicNamespace(LibraryElement library) => _basis.getPublicNamespace(library);
 
-  Namespace getPublicNamespace2(Source source) => basis.getPublicNamespace2(source);
+  Namespace getPublicNamespace2(Source source) => _basis.getPublicNamespace2(source);
 
-  List<Source> get refactoringUnsafeSources => basis.refactoringUnsafeSources;
+  List<Source> get refactoringUnsafeSources => _basis.refactoringUnsafeSources;
 
   CompilationUnit getResolvedCompilationUnit(Source unitSource, LibraryElement library) {
     InstrumentationBuilder instrumentation = Instrumentation.builder2("Analysis-getResolvedCompilationUnit");
     try {
       instrumentation.metric3("contextId", _contextId);
-      return basis.getResolvedCompilationUnit(unitSource, library);
+      return _basis.getResolvedCompilationUnit(unitSource, library);
     } finally {
       instrumentation.log();
     }
@@ -6281,7 +6271,7 @@
     InstrumentationBuilder instrumentation = Instrumentation.builder2("Analysis-getResolvedCompilationUnit");
     try {
       instrumentation.metric3("contextId", _contextId);
-      return basis.getResolvedCompilationUnit2(unitSource, librarySource);
+      return _basis.getResolvedCompilationUnit2(unitSource, librarySource);
     } finally {
       instrumentation.log2(2);
     }
@@ -6291,21 +6281,23 @@
     InstrumentationBuilder instrumentation = Instrumentation.builder2("Analysis-getSourceFactory");
     try {
       instrumentation.metric3("contextId", _contextId);
-      return basis.sourceFactory;
+      return _basis.sourceFactory;
     } finally {
       instrumentation.log2(2);
     }
   }
 
-  AnalysisContentStatistics get statistics => basis.statistics;
+  AnalysisContentStatistics get statistics => _basis.statistics;
 
-  TimestampedData<CompilationUnit> internalResolveCompilationUnit(Source unitSource, LibraryElement libraryElement) => basis.internalResolveCompilationUnit(unitSource, libraryElement);
+  TypeProvider get typeProvider => _basis.typeProvider;
+
+  TimestampedData<CompilationUnit> internalResolveCompilationUnit(Source unitSource, LibraryElement libraryElement) => _basis.internalResolveCompilationUnit(unitSource, libraryElement);
 
   bool isClientLibrary(Source librarySource) {
     InstrumentationBuilder instrumentation = Instrumentation.builder2("Analysis-isClientLibrary");
     try {
       instrumentation.metric3("contextId", _contextId);
-      return basis.isClientLibrary(librarySource);
+      return _basis.isClientLibrary(librarySource);
     } finally {
       instrumentation.log();
     }
@@ -6315,7 +6307,7 @@
     InstrumentationBuilder instrumentation = Instrumentation.builder2("Analysis-isServerLibrary");
     try {
       instrumentation.metric3("contextId", _contextId);
-      return basis.isServerLibrary(librarySource);
+      return _basis.isServerLibrary(librarySource);
     } finally {
       instrumentation.log();
     }
@@ -6326,9 +6318,9 @@
     try {
       instrumentation.metric3("contextId", _contextId);
       if (context is InstrumentedAnalysisContextImpl) {
-        context = (context as InstrumentedAnalysisContextImpl).basis;
+        context = (context as InstrumentedAnalysisContextImpl)._basis;
       }
-      basis.mergeContext(context);
+      _basis.mergeContext(context);
     } finally {
       instrumentation.log();
     }
@@ -6338,7 +6330,7 @@
     InstrumentationBuilder instrumentation = Instrumentation.builder2("Analysis-parseCompilationUnit");
     try {
       instrumentation.metric3("contextId", _contextId);
-      return basis.parseCompilationUnit(source);
+      return _basis.parseCompilationUnit(source);
     } on AnalysisException catch (e) {
       recordAnalysisException(instrumentation, e);
       throw e;
@@ -6351,7 +6343,7 @@
     InstrumentationBuilder instrumentation = Instrumentation.builder2("Analysis-parseHtmlUnit");
     try {
       instrumentation.metric3("contextId", _contextId);
-      return basis.parseHtmlUnit(source);
+      return _basis.parseHtmlUnit(source);
     } on AnalysisException catch (e) {
       recordAnalysisException(instrumentation, e);
       throw e;
@@ -6364,7 +6356,7 @@
     InstrumentationBuilder instrumentation = Instrumentation.builder2("Analysis-performAnalysisTask");
     try {
       instrumentation.metric3("contextId", _contextId);
-      AnalysisResult result = basis.performAnalysisTask();
+      AnalysisResult result = _basis.performAnalysisTask();
       if (result.changeNotices != null) {
         instrumentation.metric2("ChangeNotice-count", result.changeNotices.length);
       }
@@ -6375,14 +6367,14 @@
   }
 
   void recordLibraryElements(Map<Source, LibraryElement> elementMap) {
-    basis.recordLibraryElements(elementMap);
+    _basis.recordLibraryElements(elementMap);
   }
 
   CompilationUnit resolveCompilationUnit(Source unitSource, LibraryElement library) {
     InstrumentationBuilder instrumentation = Instrumentation.builder2("Analysis-resolveCompilationUnit");
     try {
       instrumentation.metric3("contextId", _contextId);
-      return basis.resolveCompilationUnit(unitSource, library);
+      return _basis.resolveCompilationUnit(unitSource, library);
     } on AnalysisException catch (e) {
       recordAnalysisException(instrumentation, e);
       throw e;
@@ -6395,7 +6387,7 @@
     InstrumentationBuilder instrumentation = Instrumentation.builder2("Analysis-resolveCompilationUnit");
     try {
       instrumentation.metric3("contextId", _contextId);
-      return basis.resolveCompilationUnit2(unitSource, librarySource);
+      return _basis.resolveCompilationUnit2(unitSource, librarySource);
     } on AnalysisException catch (e) {
       recordAnalysisException(instrumentation, e);
       throw e;
@@ -6408,7 +6400,7 @@
     InstrumentationBuilder instrumentation = Instrumentation.builder2("Analysis-resolveHtmlUnit");
     try {
       instrumentation.metric3("contextId", _contextId);
-      return basis.resolveHtmlUnit(htmlSource);
+      return _basis.resolveHtmlUnit(htmlSource);
     } on AnalysisException catch (e) {
       recordAnalysisException(instrumentation, e);
       throw e;
@@ -6421,7 +6413,7 @@
     InstrumentationBuilder instrumentation = Instrumentation.builder2("Analysis-setAnalysisOptions");
     try {
       instrumentation.metric3("contextId", _contextId);
-      basis.analysisOptions = options;
+      _basis.analysisOptions = options;
     } finally {
       instrumentation.log();
     }
@@ -6431,7 +6423,7 @@
     InstrumentationBuilder instrumentation = Instrumentation.builder2("Analysis-setAnalysisPriorityOrder");
     try {
       instrumentation.metric3("contextId", _contextId);
-      basis.analysisPriorityOrder = sources;
+      _basis.analysisPriorityOrder = sources;
     } finally {
       instrumentation.log();
     }
@@ -6441,7 +6433,7 @@
     InstrumentationBuilder instrumentation = Instrumentation.builder2("Analysis-setChangedContents");
     try {
       instrumentation.metric3("contextId", _contextId);
-      basis.setChangedContents(source, contents, offset, oldLength, newLength);
+      _basis.setChangedContents(source, contents, offset, oldLength, newLength);
     } finally {
       instrumentation.log();
     }
@@ -6451,7 +6443,7 @@
     InstrumentationBuilder instrumentation = Instrumentation.builder2("Analysis-setContents");
     try {
       instrumentation.metric3("contextId", _contextId);
-      basis.setContents(source, contents);
+      _basis.setContents(source, contents);
     } finally {
       instrumentation.log();
     }
@@ -6461,7 +6453,7 @@
     InstrumentationBuilder instrumentation = Instrumentation.builder2("Analysis-setSourceFactory");
     try {
       instrumentation.metric3("contextId", _contextId);
-      basis.sourceFactory = factory;
+      _basis.sourceFactory = factory;
     } finally {
       instrumentation.log();
     }
@@ -6471,7 +6463,7 @@
     InstrumentationBuilder instrumentation = Instrumentation.builder2("Analysis-sourcesToResolve");
     try {
       instrumentation.metric3("contextId", _contextId);
-      return basis.sourcesToResolve(changedSources);
+      return _basis.sourcesToResolve(changedSources);
     } finally {
       instrumentation.log();
     }
@@ -6570,6 +6562,15 @@
   AnalysisContentStatistics get statistics;
 
   /**
+   * Returns a type provider for this context or throws an exception if dart:core cannot be
+   * resolved.
+   *
+   * @return the type provider (not `null`)
+   * @throws AnalysisException if dart:core cannot be resolved
+   */
+  TypeProvider get typeProvider;
+
+  /**
    * Return a time-stamped fully-resolved compilation unit for the given source in the given
    * library.
    *
@@ -6837,12 +6838,12 @@
   /**
    * The modification time of the source from which the data was created.
    */
-  int modificationTime = 0;
+  final int modificationTime;
 
   /**
    * The data that was created from the source.
    */
-  E data;
+  final E data;
 
   /**
    * Initialize a newly created holder to hold the given values.
@@ -6850,10 +6851,7 @@
    * @param modificationTime the modification time of the source from which the data was created
    * @param unit the data that was created from the source
    */
-  TimestampedData(int modificationTime, E data) {
-    this.modificationTime = modificationTime;
-    this.data = data;
-  }
+  TimestampedData(this.modificationTime, this.data);
 }
 
 /**
@@ -6864,22 +6862,20 @@
   /**
    * The context in which the task is to be performed.
    */
-  InternalAnalysisContext context;
+  final InternalAnalysisContext context;
 
   /**
    * The exception that was thrown while performing this task, or `null` if the task completed
    * successfully.
    */
-  AnalysisException exception;
+  AnalysisException _thrownException;
 
   /**
    * Initialize a newly created task to perform analysis within the given context.
    *
    * @param context the context in which the task is to be performed
    */
-  AnalysisTask(InternalAnalysisContext context) {
-    this.context = context;
-  }
+  AnalysisTask(this.context);
 
   /**
    * Use the given visitor to visit this task.
@@ -6891,6 +6887,14 @@
   accept(AnalysisTaskVisitor visitor);
 
   /**
+   * Return the exception that was thrown while performing this task, or `null` if the task
+   * completed successfully.
+   *
+   * @return the exception that was thrown while performing this task
+   */
+  AnalysisException get exception => _thrownException;
+
+  /**
    * Perform this analysis task and use the given visitor to visit this task after it has completed.
    *
    * @param visitor the visitor used to visit this task after it has completed
@@ -6901,7 +6905,7 @@
     try {
       safelyPerform();
     } on AnalysisException catch (exception) {
-      this.exception = exception;
+      _thrownException = exception;
       AnalysisEngine.instance.logger.logInformation2("Task failed: ${taskDescription}", exception);
     }
     return accept(visitor);
@@ -7027,22 +7031,22 @@
   /**
    * The source for which errors and warnings are to be produced.
    */
-  Source source;
+  final Source source;
 
   /**
    * The element model for the library containing the source.
    */
-  LibraryElement libraryElement;
+  final LibraryElement libraryElement;
 
   /**
    * The time at which the contents of the source were last modified.
    */
-  int modificationTime = -1;
+  int _modificationTime = -1;
 
   /**
    * The errors that were generated for the source.
    */
-  List<AnalysisError> errors;
+  List<AnalysisError> _errors;
 
   /**
    * Initialize a newly created task to perform analysis within the given context.
@@ -7051,13 +7055,25 @@
    * @param source the source for which errors and warnings are to be produced
    * @param libraryElement the element model for the library containing the source
    */
-  GenerateDartErrorsTask(InternalAnalysisContext context, Source source, LibraryElement libraryElement) : super(context) {
-    this.source = source;
-    this.libraryElement = libraryElement;
-  }
+  GenerateDartErrorsTask(InternalAnalysisContext context, this.source, this.libraryElement) : super(context);
 
   accept(AnalysisTaskVisitor visitor) => visitor.visitGenerateDartErrorsTask(this);
 
+  /**
+   * Return the errors that were generated for the source.
+   *
+   * @return the errors that were generated for the source
+   */
+  List<AnalysisError> get errors => _errors;
+
+  /**
+   * Return the time at which the contents of the source that was verified were last modified, or a
+   * negative value if the task has not yet been performed or if an exception occurred.
+   *
+   * @return the time at which the contents of the source that was verified were last modified
+   */
+  int get modificationTime => _modificationTime;
+
   String get taskDescription => "generate errors and warnings for ${source.fullName}";
 
   void internalPerform() {
@@ -7065,18 +7081,16 @@
     TimestampedData<CompilationUnit> data = context.internalResolveCompilationUnit(source, libraryElement);
     TimeCounter_TimeCounterHandle timeCounter = PerformanceStatistics.errors.start();
     try {
-      modificationTime = data.modificationTime;
+      _modificationTime = data.modificationTime;
       CompilationUnit unit = data.data;
       RecordingErrorListener errorListener = new RecordingErrorListener();
       ErrorReporter errorReporter = new ErrorReporter(errorListener, source);
-      Source coreSource = context.sourceFactory.forUri(DartSdk.DART_CORE);
-      LibraryElement coreLibrary = context.getLibraryElement(coreSource);
-      TypeProvider typeProvider = new TypeProviderImpl(coreLibrary);
+      TypeProvider typeProvider = context.typeProvider;
       ConstantVerifier constantVerifier = new ConstantVerifier(errorReporter, typeProvider);
       unit.accept(constantVerifier);
       ErrorVerifier errorVerifier = new ErrorVerifier(errorReporter, libraryElement, typeProvider, new InheritanceManager(libraryElement));
       unit.accept(errorVerifier);
-      errors = errorListener.getErrors2(source);
+      _errors = errorListener.getErrors2(source);
     } finally {
       timeCounter.stop();
     }
@@ -7090,13 +7104,13 @@
   /**
    * The element model for the library being analyzed.
    */
-  LibraryElement libraryElement;
+  final LibraryElement libraryElement;
 
   /**
    * A table mapping the sources that were analyzed to the hints that were generated for the
    * sources.
    */
-  Map<Source, TimestampedData<List<AnalysisError>>> hintMap;
+  Map<Source, TimestampedData<List<AnalysisError>>> _hintMap;
 
   /**
    * Initialize a newly created task to perform analysis within the given context.
@@ -7104,12 +7118,20 @@
    * @param context the context in which the task is to be performed
    * @param libraryElement the element model for the library being analyzed
    */
-  GenerateDartHintsTask(InternalAnalysisContext context, LibraryElement libraryElement) : super(context) {
-    this.libraryElement = libraryElement;
-  }
+  GenerateDartHintsTask(InternalAnalysisContext context, this.libraryElement) : super(context);
 
   accept(AnalysisTaskVisitor visitor) => visitor.visitGenerateDartHintsTask(this);
 
+  /**
+   * Return a table mapping the sources that were analyzed to the hints that were generated for the
+   * sources, or `null` if the task has not been performed or if the analysis did not complete
+   * normally.
+   *
+   * @return a table mapping the sources that were analyzed to the hints that were generated for the
+   *         sources
+   */
+  Map<Source, TimestampedData<List<AnalysisError>>> get hintMap => _hintMap;
+
   String get taskDescription {
     Source librarySource = libraryElement.source;
     if (librarySource == null) {
@@ -7144,12 +7166,12 @@
     }
     HintGenerator hintGenerator = new HintGenerator(compilationUnits, context, errorListener);
     hintGenerator.generateForLibrary();
-    hintMap = new Map<Source, TimestampedData<List<AnalysisError>>>();
+    _hintMap = new Map<Source, TimestampedData<List<AnalysisError>>>();
     for (MapEntry<Source, TimestampedData<CompilationUnit>> entry in getMapEntrySet(timestampMap)) {
       Source source = entry.getKey();
       TimestampedData<CompilationUnit> unitData = entry.getValue();
       List<AnalysisError> errors = errorListener.getErrors2(source);
-      hintMap[source] = new TimestampedData<List<AnalysisError>>(unitData.modificationTime, errors);
+      _hintMap[source] = new TimestampedData<List<AnalysisError>>(unitData.modificationTime, errors);
     }
   }
 
@@ -7170,12 +7192,12 @@
   /**
    * The information used to perform incremental analysis.
    */
-  IncrementalAnalysisCache cache;
+  final IncrementalAnalysisCache cache;
 
   /**
    * The compilation unit that was produced by incrementally updating the existing unit.
    */
-  CompilationUnit compilationUnit;
+  CompilationUnit _updatedUnit;
 
   /**
    * Initialize a newly created task to perform analysis within the given context.
@@ -7183,13 +7205,20 @@
    * @param context the context in which the task is to be performed
    * @param cache the incremental analysis cache used to perform the analysis
    */
-  IncrementalAnalysisTask(InternalAnalysisContext context, IncrementalAnalysisCache cache) : super(context) {
-    this.cache = cache;
-  }
+  IncrementalAnalysisTask(InternalAnalysisContext context, this.cache) : super(context);
 
   accept(AnalysisTaskVisitor visitor) => visitor.visitIncrementalAnalysisTask(this);
 
   /**
+   * Return the compilation unit that was produced by incrementally updating the existing
+   * compilation unit, or `null` if the task has not yet been performed, could not be
+   * performed, or if an exception occurred.
+   *
+   * @return the compilation unit
+   */
+  CompilationUnit get compilationUnit => _updatedUnit;
+
+  /**
    * Return the source that is to be incrementally analyzed.
    *
    * @return the source
@@ -7202,7 +7231,42 @@
     if (cache == null) {
       return;
     }
-    compilationUnit = cache.resolvedUnit;
+    if (cache.oldLength > 0 || cache.newLength > 30) {
+      return;
+    }
+    CharacterReader reader = new CharSequenceReader(new CharSequence(cache.newContents));
+    BooleanErrorListener errorListener = new BooleanErrorListener();
+    IncrementalScanner scanner = new IncrementalScanner(cache.source, reader, errorListener);
+    scanner.rescan(cache.resolvedUnit.beginToken, cache.offset, cache.oldLength, cache.newLength);
+    if (errorListener.errorReported) {
+      return;
+    }
+    IncrementalParser parser = new IncrementalParser(cache.source, scanner.tokenMap, AnalysisErrorListener.NULL_LISTENER);
+    _updatedUnit = parser.reparse(cache.resolvedUnit, scanner.leftToken, scanner.rightToken, cache.offset, cache.offset + cache.oldLength);
+    TypeProvider typeProvider = this.typeProvider;
+    if (_updatedUnit != null && typeProvider != null) {
+      CompilationUnitElement element = _updatedUnit.element;
+      if (element != null) {
+        LibraryElement library = element.library;
+        if (library != null) {
+          IncrementalResolver resolver = new IncrementalResolver(library, cache.source, typeProvider, errorListener);
+          resolver.resolve(parser.updatedNode);
+        }
+      }
+    }
+  }
+
+  /**
+   * Return the type provider used for incremental resolution.
+   *
+   * @return the type provider (or `null` if an exception occurs)
+   */
+  TypeProvider get typeProvider {
+    try {
+      return context.typeProvider;
+    } on AnalysisException catch (exception) {
+      return null;
+    }
   }
 }
 
@@ -7213,27 +7277,27 @@
   /**
    * The source to be parsed.
    */
-  Source source;
+  final Source source;
 
   /**
    * The time at which the contents of the source were last modified.
    */
-  int modificationTime = -1;
+  int _modificationTime = -1;
 
   /**
    * The line information that was produced.
    */
-  LineInfo lineInfo;
+  LineInfo _lineInfo;
 
   /**
    * The compilation unit that was produced by parsing the source.
    */
-  CompilationUnit compilationUnit;
+  CompilationUnit _unit;
 
   /**
    * The errors that were produced by scanning and parsing the source.
    */
-  List<AnalysisError> errors = AnalysisError.NO_ERRORS;
+  List<AnalysisError> _errors = AnalysisError.NO_ERRORS;
 
   /**
    * A flag indicating whether the source contains a 'part of' directive.
@@ -7266,13 +7330,27 @@
    * @param context the context in which the task is to be performed
    * @param source the source to be parsed
    */
-  ParseDartTask(InternalAnalysisContext context, Source source) : super(context) {
-    this.source = source;
-  }
+  ParseDartTask(InternalAnalysisContext context, this.source) : super(context);
 
   accept(AnalysisTaskVisitor visitor) => visitor.visitParseDartTask(this);
 
   /**
+   * Return the compilation unit that was produced by parsing the source, or `null` if the
+   * task has not yet been performed or if an exception occurred.
+   *
+   * @return the compilation unit that was produced by parsing the source
+   */
+  CompilationUnit get compilationUnit => _unit;
+
+  /**
+   * Return the errors that were produced by scanning and parsing the source, or `null` if the
+   * task has not yet been performed or if an exception occurred.
+   *
+   * @return the errors that were produced by scanning and parsing the source
+   */
+  List<AnalysisError> get errors => _errors;
+
+  /**
    * Return an array containing the sources referenced by 'export' directives, or an empty array if
    * the task has not yet been performed or if an exception occurred.
    *
@@ -7297,6 +7375,22 @@
   List<Source> get includedSources => toArray(_includedSources);
 
   /**
+   * Return the line information that was produced, or `null` if the task has not yet been
+   * performed or if an exception occurred.
+   *
+   * @return the line information that was produced
+   */
+  LineInfo get lineInfo => _lineInfo;
+
+  /**
+   * Return the time at which the contents of the source that was parsed were last modified, or a
+   * negative value if the task has not yet been performed or if an exception occurred.
+   *
+   * @return the time at which the contents of the source that was parsed were last modified
+   */
+  int get modificationTime => _modificationTime;
+
+  /**
    * Return `true` if the source contains a 'library' directive, or `false` if the task
    * has not yet been performed or if an exception occurred.
    *
@@ -7328,7 +7422,7 @@
       try {
         source.getContents(receiver);
       } on JavaException catch (exception) {
-        modificationTime = source.modificationStamp;
+        _modificationTime = source.modificationStamp;
         throw new AnalysisException.con3(exception);
       }
     } finally {
@@ -7337,9 +7431,10 @@
     TimeCounter_TimeCounterHandle timeCounterParse = PerformanceStatistics.parse.start();
     try {
       Parser parser = new Parser(source, errorListener);
-      compilationUnit = parser.parseCompilationUnit(token[0]);
-      errors = errorListener.getErrors2(source);
-      for (Directive directive in compilationUnit.directives) {
+      parser.parseFunctionBodies = context.analysisOptions.analyzeFunctionBodies;
+      _unit = parser.parseCompilationUnit(token[0]);
+      _errors = errorListener.getErrors2(source);
+      for (Directive directive in _unit.directives) {
         if (directive is ExportDirective) {
           Source exportSource = resolveSource(source, directive as ExportDirective);
           if (exportSource != null) {
@@ -7361,7 +7456,7 @@
           _hasPartOfDirective2 = true;
         }
       }
-      compilationUnit.lineInfo = lineInfo;
+      _unit.lineInfo = _lineInfo;
     } finally {
       timeCounterParse.stop();
     }
@@ -7418,17 +7513,19 @@
   Source_ContentReceiver_11(this.ParseDartTask_this, this.errorListener, this.token);
 
   void accept(CharBuffer contents, int modificationTime) {
-    ParseDartTask_this.modificationTime = modificationTime;
-    Scanner scanner = new Scanner(ParseDartTask_this.source, new CharSequenceReader(contents), errorListener);
-    token[0] = scanner.tokenize();
-    ParseDartTask_this.lineInfo = new LineInfo(scanner.lineStarts);
+    doScan(contents, modificationTime);
   }
 
   void accept2(String contents, int modificationTime) {
-    ParseDartTask_this.modificationTime = modificationTime;
-    Scanner scanner = new Scanner(ParseDartTask_this.source, new CharSequenceReader(new CharSequence(contents)), errorListener);
+    doScan(new CharSequence(contents), modificationTime);
+  }
+
+  void doScan(CharSequence contents, int modificationTime) {
+    ParseDartTask_this._modificationTime = modificationTime;
+    Scanner scanner = new Scanner(ParseDartTask_this.source, new CharSequenceReader(contents), errorListener);
+    scanner.preserveComments = ParseDartTask_this.context.analysisOptions.preserveComments;
     token[0] = scanner.tokenize();
-    ParseDartTask_this.lineInfo = new LineInfo(scanner.lineStarts);
+    ParseDartTask_this._lineInfo = new LineInfo(scanner.lineStarts);
   }
 }
 
@@ -7439,32 +7536,32 @@
   /**
    * The source to be parsed.
    */
-  Source source;
+  final Source source;
 
   /**
    * The time at which the contents of the source were last modified.
    */
-  int modificationTime = -1;
+  int _modificationTime = -1;
 
   /**
    * The line information that was produced.
    */
-  LineInfo lineInfo;
+  LineInfo _lineInfo;
 
   /**
    * The HTML unit that was produced by parsing the source.
    */
-  HtmlUnit htmlUnit;
+  HtmlUnit _unit;
 
   /**
    * The errors that were produced by scanning and parsing the source.
    */
-  List<AnalysisError> errors = AnalysisError.NO_ERRORS;
+  List<AnalysisError> _errors = AnalysisError.NO_ERRORS;
 
   /**
    * An array containing the sources of the libraries that are referenced within the HTML.
    */
-  List<Source> referencedLibraries = Source.EMPTY_ARRAY;
+  List<Source> _referencedLibraries = Source.EMPTY_ARRAY;
 
   /**
    * The name of the 'src' attribute in a HTML tag.
@@ -7493,12 +7590,48 @@
    * @param context the context in which the task is to be performed
    * @param source the source to be parsed
    */
-  ParseHtmlTask(InternalAnalysisContext context, Source source) : super(context) {
-    this.source = source;
-  }
+  ParseHtmlTask(InternalAnalysisContext context, this.source) : super(context);
 
   accept(AnalysisTaskVisitor visitor) => visitor.visitParseHtmlTask(this);
 
+  /**
+   * Return the errors that were produced by scanning and parsing the source, or `null` if the
+   * task has not yet been performed or if an exception occurred.
+   *
+   * @return the errors that were produced by scanning and parsing the source
+   */
+  List<AnalysisError> get errors => _errors;
+
+  /**
+   * Return the HTML unit that was produced by parsing the source.
+   *
+   * @return the HTML unit that was produced by parsing the source
+   */
+  HtmlUnit get htmlUnit => _unit;
+
+  /**
+   * Return the line information that was produced, or `null` if the task has not yet been
+   * performed or if an exception occurred.
+   *
+   * @return the line information that was produced
+   */
+  LineInfo get lineInfo => _lineInfo;
+
+  /**
+   * Return the time at which the contents of the source that was parsed were last modified, or a
+   * negative value if the task has not yet been performed or if an exception occurred.
+   *
+   * @return the time at which the contents of the source that was parsed were last modified
+   */
+  int get modificationTime => _modificationTime;
+
+  /**
+   * Return an array containing the sources of the libraries that are referenced within the HTML.
+   *
+   * @return the sources of the libraries that are referenced within the HTML
+   */
+  List<Source> get referencedLibraries => _referencedLibraries;
+
   String get taskDescription {
     if (source == null) {
       return "parse as html null source";
@@ -7514,13 +7647,13 @@
       throw new AnalysisException.con3(exception);
     }
     HtmlScanResult scannerResult = scanner.result;
-    modificationTime = scannerResult.modificationTime;
-    lineInfo = new LineInfo(scannerResult.lineStarts);
+    _modificationTime = scannerResult.modificationTime;
+    _lineInfo = new LineInfo(scannerResult.lineStarts);
     RecordingErrorListener errorListener = new RecordingErrorListener();
     HtmlParseResult result = new HtmlParser(source, errorListener).parse(scannerResult);
-    htmlUnit = result.htmlUnit;
-    errors = errorListener.getErrors2(source);
-    referencedLibraries = librarySources;
+    _unit = result.htmlUnit;
+    _errors = errorListener.getErrors2(source);
+    _referencedLibraries = librarySources;
   }
 
   /**
@@ -7530,7 +7663,7 @@
    */
   List<Source> get librarySources {
     List<Source> libraries = new List<Source>();
-    htmlUnit.accept(new RecursiveXmlVisitor_12(this, libraries));
+    _unit.accept(new RecursiveXmlVisitor_12(this, libraries));
     if (libraries.isEmpty) {
       return Source.EMPTY_ARRAY;
     }
@@ -7574,17 +7707,17 @@
   /**
    * The source representing the file whose compilation unit is to be returned.
    */
-  Source unitSource;
+  final Source unitSource;
 
   /**
    * The source representing the library to be resolved.
    */
-  Source librarySource;
+  final Source librarySource;
 
   /**
    * The library resolver holding information about the libraries that were resolved.
    */
-  LibraryResolver libraryResolver;
+  LibraryResolver _resolver;
 
   /**
    * Initialize a newly created task to perform analysis within the given context.
@@ -7593,13 +7726,17 @@
    * @param unitSource the source representing the file whose compilation unit is to be returned
    * @param librarySource the source representing the library to be resolved
    */
-  ResolveDartLibraryTask(InternalAnalysisContext context, Source unitSource, Source librarySource) : super(context) {
-    this.unitSource = unitSource;
-    this.librarySource = librarySource;
-  }
+  ResolveDartLibraryTask(InternalAnalysisContext context, this.unitSource, this.librarySource) : super(context);
 
   accept(AnalysisTaskVisitor visitor) => visitor.visitResolveDartLibraryTask(this);
 
+  /**
+   * Return the library resolver holding information about the libraries that were resolved.
+   *
+   * @return the library resolver holding information about the libraries that were resolved
+   */
+  LibraryResolver get libraryResolver => _resolver;
+
   String get taskDescription {
     if (librarySource == null) {
       return "resolve library null source";
@@ -7608,8 +7745,8 @@
   }
 
   void internalPerform() {
-    libraryResolver = new LibraryResolver(context);
-    libraryResolver.resolveLibrary(librarySource, true);
+    _resolver = new LibraryResolver(context);
+    _resolver.resolveLibrary(librarySource, true);
   }
 }
 
@@ -7621,7 +7758,7 @@
   /**
    * The source that is to be resolved.
    */
-  Source source;
+  final Source source;
 
   /**
    * The element model for the library containing the source.
@@ -7631,12 +7768,12 @@
   /**
    * The time at which the contents of the source were last modified.
    */
-  int modificationTime = -1;
+  int _modificationTime = -1;
 
   /**
    * The compilation unit that was resolved by this task.
    */
-  CompilationUnit resolvedUnit;
+  CompilationUnit _resolvedUnit;
 
   /**
    * Initialize a newly created task to perform analysis within the given context.
@@ -7645,8 +7782,7 @@
    * @param source the source to be parsed
    * @param libraryElement the element model for the library containing the source
    */
-  ResolveDartUnitTask(InternalAnalysisContext context, Source source, LibraryElement libraryElement) : super(context) {
-    this.source = source;
+  ResolveDartUnitTask(InternalAnalysisContext context, this.source, LibraryElement libraryElement) : super(context) {
     this._libraryElement = libraryElement;
   }
 
@@ -7659,6 +7795,21 @@
    */
   Source get librarySource => _libraryElement.source;
 
+  /**
+   * Return the time at which the contents of the source that was parsed were last modified, or a
+   * negative value if the task has not yet been performed or if an exception occurred.
+   *
+   * @return the time at which the contents of the source that was parsed were last modified
+   */
+  int get modificationTime => _modificationTime;
+
+  /**
+   * Return the compilation unit that was resolved by this task.
+   *
+   * @return the compilation unit that was resolved by this task
+   */
+  CompilationUnit get resolvedUnit => _resolvedUnit;
+
   String get taskDescription {
     Source librarySource = _libraryElement.source;
     if (librarySource == null) {
@@ -7668,11 +7819,9 @@
   }
 
   void internalPerform() {
-    Source coreLibrarySource = _libraryElement.context.sourceFactory.forUri(DartSdk.DART_CORE);
-    LibraryElement coreElement = context.computeLibraryElement(coreLibrarySource);
-    TypeProvider typeProvider = new TypeProviderImpl(coreElement);
+    TypeProvider typeProvider = (_libraryElement.context as InternalAnalysisContext).typeProvider;
     ResolvableCompilationUnit resolvableUnit = context.computeResolvableCompilationUnit(source);
-    modificationTime = resolvableUnit.modificationTime;
+    _modificationTime = resolvableUnit.modificationTime;
     CompilationUnit unit = resolvableUnit.compilationUnit;
     if (unit == null) {
       throw new AnalysisException.con1("Internal error: computeResolvableCompilationUnit returned a value without a parsed Dart unit");
@@ -7699,7 +7848,7 @@
     } finally {
       counterHandleErrors.stop();
     }
-    resolvedUnit = unit;
+    _resolvedUnit = unit;
   }
 
   /**
@@ -7732,22 +7881,22 @@
   /**
    * The source to be resolved.
    */
-  Source source;
+  final Source source;
 
   /**
    * The time at which the contents of the source were last modified.
    */
-  int modificationTime = -1;
+  int _modificationTime = -1;
 
   /**
    * The element produced by resolving the source.
    */
-  HtmlElement element = null;
+  HtmlElement _element = null;
 
   /**
    * The resolution errors that were discovered while resolving the source.
    */
-  List<AnalysisError> resolutionErrors = AnalysisError.NO_ERRORS;
+  List<AnalysisError> _resolutionErrors = AnalysisError.NO_ERRORS;
 
   /**
    * Initialize a newly created task to perform analysis within the given context.
@@ -7755,12 +7904,22 @@
    * @param context the context in which the task is to be performed
    * @param source the source to be resolved
    */
-  ResolveHtmlTask(InternalAnalysisContext context, Source source) : super(context) {
-    this.source = source;
-  }
+  ResolveHtmlTask(InternalAnalysisContext context, this.source) : super(context);
 
   accept(AnalysisTaskVisitor visitor) => visitor.visitResolveHtmlTask(this);
 
+  HtmlElement get element => _element;
+
+  /**
+   * Return the time at which the contents of the source that was parsed were last modified, or a
+   * negative value if the task has not yet been performed or if an exception occurred.
+   *
+   * @return the time at which the contents of the source that was parsed were last modified
+   */
+  int get modificationTime => _modificationTime;
+
+  List<AnalysisError> get resolutionErrors => _resolutionErrors;
+
   String get taskDescription {
     if (source == null) {
       return "resolve as html null source";
@@ -7774,10 +7933,10 @@
     if (unit == null) {
       throw new AnalysisException.con1("Internal error: computeResolvableHtmlUnit returned a value without a parsed HTML unit");
     }
-    modificationTime = resolvableHtmlUnit.modificationTime;
+    _modificationTime = resolvableHtmlUnit.modificationTime;
     HtmlUnitBuilder builder = new HtmlUnitBuilder(context);
-    element = builder.buildHtmlElement2(source, modificationTime, unit);
-    resolutionErrors = builder.errorListener.getErrors2(source);
+    _element = builder.buildHtmlElement2(source, _modificationTime, unit);
+    _resolutionErrors = builder.errorListener.getErrors2(source);
   }
 }
 
diff --git a/pkg/analyzer/lib/src/generated/error.dart b/pkg/analyzer/lib/src/generated/error.dart
index 804608e..0b80972 100644
--- a/pkg/analyzer/lib/src/generated/error.dart
+++ b/pkg/analyzer/lib/src/generated/error.dart
@@ -43,12 +43,12 @@
   /**
    * The name of the severity used when producing machine output.
    */
-  String machineCode;
+  final String machineCode;
 
   /**
    * The name of the severity used when producing readable output.
    */
-  String displayName;
+  final String displayName;
 
   /**
    * Initialize a newly created severity with the given names.
@@ -56,10 +56,7 @@
    * @param machineCode the name of the severity used when producing machine output
    * @param displayName the name of the severity used when producing readable output
    */
-  ErrorSeverity(String name, int ordinal, String machineCode, String displayName) : super(name, ordinal) {
-    this.machineCode = machineCode;
-    this.displayName = displayName;
-  }
+  ErrorSeverity(String name, int ordinal, this.machineCode, this.displayName) : super(name, ordinal);
 
   /**
    * Return the severity constant that represents the greatest severity.
@@ -122,10 +119,17 @@
   /**
    * A flag indicating whether an error has been reported to this listener.
    */
-  bool errorReported = false;
+  bool _errorReported = false;
+
+  /**
+   * Return `true` if an error has been reported to this listener.
+   *
+   * @return `true` if an error has been reported to this listener
+   */
+  bool get errorReported => _errorReported;
 
   void onError(AnalysisError error) {
-    errorReported = true;
+    _errorReported = true;
   }
 }
 
@@ -282,18 +286,18 @@
   /**
    * The error code associated with the error.
    */
-  ErrorCode errorCode;
+  final ErrorCode errorCode;
 
   /**
    * The localized error message.
    */
-  String message;
+  String _message;
 
   /**
    * The correction to be displayed for this error, or `null` if there is no correction
    * information for this error.
    */
-  String correction;
+  String _correction;
 
   /**
    * The source in which the error occurred, or `null` if unknown.
@@ -303,13 +307,13 @@
   /**
    * The character offset from the beginning of the source (zero based) where the error occurred.
    */
-  int offset = 0;
+  int _offset = 0;
 
   /**
    * The number of characters from the offset to the end of the source which encompasses the
    * compilation error.
    */
-  int length = 0;
+  int _length = 0;
 
   /**
    * A flag indicating whether this error can be shown to be a non-issue because of the result of
@@ -325,10 +329,8 @@
    * @param errorCode the error code to be associated with this error
    * @param arguments the arguments used to build the error message
    */
-  AnalysisError.con1(Source source, ErrorCode errorCode, List<Object> arguments) {
-    this.source = source;
-    this.errorCode = errorCode;
-    this.message = JavaString.format(errorCode.message, arguments);
+  AnalysisError.con1(this.source, this.errorCode, List<Object> arguments) {
+    this._message = JavaString.format(errorCode.message, arguments);
   }
 
   /**
@@ -340,15 +342,13 @@
    * @param errorCode the error code to be associated with this error
    * @param arguments the arguments used to build the error message
    */
-  AnalysisError.con2(Source source, int offset, int length, ErrorCode errorCode, List<Object> arguments) {
-    this.source = source;
-    this.offset = offset;
-    this.length = length;
-    this.errorCode = errorCode;
-    this.message = JavaString.format(errorCode.message, arguments);
+  AnalysisError.con2(this.source, int offset, int length, this.errorCode, List<Object> arguments) {
+    this._offset = offset;
+    this._length = length;
+    this._message = JavaString.format(errorCode.message, arguments);
     String correctionTemplate = errorCode.correction;
     if (correctionTemplate != null) {
-      this.correction = JavaString.format(correctionTemplate, arguments);
+      this._correction = JavaString.format(correctionTemplate, arguments);
     }
   }
 
@@ -363,13 +363,13 @@
     if (errorCode != other.errorCode) {
       return false;
     }
-    if (offset != other.offset || length != other.length) {
+    if (_offset != other._offset || _length != other._length) {
       return false;
     }
     if (isStaticOnly != other.isStaticOnly) {
       return false;
     }
-    if (message != other.message) {
+    if (_message != other._message) {
       return false;
     }
     if (source != other.source) {
@@ -379,6 +379,38 @@
   }
 
   /**
+   * Return the correction to be displayed for this error, or `null` if there is no correction
+   * information for this error. The correction should indicate how the user can fix the error.
+   *
+   * @return the template used to create the correction to be displayed for this error
+   */
+  String get correction => _correction;
+
+  /**
+   * Return the number of characters from the offset to the end of the source which encompasses the
+   * compilation error.
+   *
+   * @return the length of the error location
+   */
+  int get length => _length;
+
+  /**
+   * Return the message to be displayed for this error. The message should indicate what is wrong
+   * and why it is wrong.
+   *
+   * @return the message to be displayed for this error
+   */
+  String get message => _message;
+
+  /**
+   * Return the character offset from the beginning of the source (zero based) where the error
+   * occurred.
+   *
+   * @return the offset to the start of the error location
+   */
+  int get offset => _offset;
+
+  /**
    * Return the value of the given property, or `null` if the given property is not defined
    * for this error.
    *
@@ -388,8 +420,8 @@
   Object getProperty(ErrorProperty property) => null;
 
   int get hashCode {
-    int hashCode = offset;
-    hashCode ^= (message != null) ? message.hashCode : 0;
+    int hashCode = _offset;
+    hashCode ^= (_message != null) ? _message.hashCode : 0;
     hashCode ^= (source != null) ? source.hashCode : 0;
     return hashCode;
   }
@@ -398,11 +430,11 @@
     JavaStringBuilder builder = new JavaStringBuilder();
     builder.append((source != null) ? source.fullName : "<unknown source>");
     builder.append("(");
-    builder.append(offset);
+    builder.append(_offset);
     builder.append("..");
-    builder.append(offset + length - 1);
+    builder.append(_offset + _length - 1);
     builder.append("): ");
-    builder.append(message);
+    builder.append(_message);
     return builder.toString();
   }
 }
@@ -642,7 +674,7 @@
   /**
    * The template used to create the message to be displayed for this error.
    */
-  String _message;
+  final String message;
 
   /**
    * The template used to create the correction to be displayed for this error, or `null` if
@@ -655,9 +687,7 @@
    *
    * @param message the message template used to create the message to be displayed for the error
    */
-  HintCode.con1(String name, int ordinal, String message) : super(name, ordinal) {
-    this._message = message;
-  }
+  HintCode.con1(String name, int ordinal, this.message) : super(name, ordinal);
 
   /**
    * Initialize a newly created error code to have the given message and correction.
@@ -665,8 +695,7 @@
    * @param message the template used to create the message to be displayed for the error
    * @param correction the template used to create the correction to be displayed for the error
    */
-  HintCode.con2(String name, int ordinal, String message, String correction) : super(name, ordinal) {
-    this._message = message;
+  HintCode.con2(String name, int ordinal, this.message, String correction) : super(name, ordinal) {
     this.correction3 = correction;
   }
 
@@ -674,8 +703,6 @@
 
   ErrorSeverity get errorSeverity => ErrorType.HINT.severity;
 
-  String get message => _message;
-
   ErrorType get type => ErrorType.HINT;
 }
 
@@ -780,16 +807,14 @@
   /**
    * The severity of this type of error.
    */
-  ErrorSeverity severity;
+  final ErrorSeverity severity;
 
   /**
    * Initialize a newly created error type to have the given severity.
    *
    * @param severity the severity of this type of error
    */
-  ErrorType(String name, int ordinal, ErrorSeverity severity) : super(name, ordinal) {
-    this.severity = severity;
-  }
+  ErrorType(String name, int ordinal, this.severity) : super(name, ordinal);
 
   String get displayName => name.toLowerCase().replaceAll('_', ' ');
 }
@@ -2113,7 +2138,7 @@
   /**
    * The template used to create the message to be displayed for this error.
    */
-  String _message;
+  final String message;
 
   /**
    * The template used to create the correction to be displayed for this error, or `null` if
@@ -2126,9 +2151,7 @@
    *
    * @param message the message template used to create the message to be displayed for the error
    */
-  CompileTimeErrorCode.con1(String name, int ordinal, String message) : super(name, ordinal) {
-    this._message = message;
-  }
+  CompileTimeErrorCode.con1(String name, int ordinal, this.message) : super(name, ordinal);
 
   /**
    * Initialize a newly created error code to have the given message and correction.
@@ -2136,8 +2159,7 @@
    * @param message the template used to create the message to be displayed for the error
    * @param correction the template used to create the correction to be displayed for the error
    */
-  CompileTimeErrorCode.con2(String name, int ordinal, String message, String correction) : super(name, ordinal) {
-    this._message = message;
+  CompileTimeErrorCode.con2(String name, int ordinal, this.message, String correction) : super(name, ordinal) {
     this.correction2 = correction;
   }
 
@@ -2145,8 +2167,6 @@
 
   ErrorSeverity get errorSeverity => ErrorType.COMPILE_TIME_ERROR.severity;
 
-  String get message => _message;
-
   ErrorType get type => ErrorType.COMPILE_TIME_ERROR;
 }
 
@@ -2188,7 +2208,7 @@
   /**
    * The template used to create the message to be displayed for this error.
    */
-  String _message;
+  final String message;
 
   /**
    * The template used to create the correction to be displayed for this error, or `null` if
@@ -2201,9 +2221,7 @@
    *
    * @param message the message template used to create the message to be displayed for the error
    */
-  PubSuggestionCode.con1(String name, int ordinal, String message) : super(name, ordinal) {
-    this._message = message;
-  }
+  PubSuggestionCode.con1(String name, int ordinal, this.message) : super(name, ordinal);
 
   /**
    * Initialize a newly created error code to have the given message and correction.
@@ -2211,8 +2229,7 @@
    * @param message the template used to create the message to be displayed for the error
    * @param correction the template used to create the correction to be displayed for the error
    */
-  PubSuggestionCode.con2(String name, int ordinal, String message, String correction) : super(name, ordinal) {
-    this._message = message;
+  PubSuggestionCode.con2(String name, int ordinal, this.message, String correction) : super(name, ordinal) {
     this.correction5 = correction;
   }
 
@@ -2220,8 +2237,6 @@
 
   ErrorSeverity get errorSeverity => ErrorType.PUB_SUGGESTION.severity;
 
-  String get message => _message;
-
   ErrorType get type => ErrorType.PUB_SUGGESTION;
 }
 
@@ -3083,7 +3098,7 @@
   /**
    * The template used to create the message to be displayed for this error.
    */
-  String _message;
+  final String message;
 
   /**
    * The template used to create the correction to be displayed for this error, or `null` if
@@ -3096,9 +3111,7 @@
    *
    * @param message the message template used to create the message to be displayed for the error
    */
-  StaticWarningCode.con1(String name, int ordinal, String message) : super(name, ordinal) {
-    this._message = message;
-  }
+  StaticWarningCode.con1(String name, int ordinal, this.message) : super(name, ordinal);
 
   /**
    * Initialize a newly created error code to have the given message and correction.
@@ -3106,8 +3119,7 @@
    * @param message the template used to create the message to be displayed for the error
    * @param correction the template used to create the correction to be displayed for the error
    */
-  StaticWarningCode.con2(String name, int ordinal, String message, String correction) : super(name, ordinal) {
-    this._message = message;
+  StaticWarningCode.con2(String name, int ordinal, this.message, String correction) : super(name, ordinal) {
     this.correction7 = correction;
   }
 
@@ -3115,8 +3127,6 @@
 
   ErrorSeverity get errorSeverity => ErrorType.STATIC_WARNING.severity;
 
-  String get message => _message;
-
   ErrorType get type => ErrorType.STATIC_WARNING;
 }
 
@@ -3130,7 +3140,7 @@
   /**
    * An error listener that ignores errors that are reported to it.
    */
-  static final AnalysisErrorListener _NULL_LISTENER = new AnalysisErrorListener_6();
+  static final AnalysisErrorListener NULL_LISTENER = new AnalysisErrorListener_6();
 
   /**
    * This method is invoked when an error has been found by the analysis engine.
@@ -3175,7 +3185,7 @@
   /**
    * The template used to create the message to be displayed for this error.
    */
-  String _message;
+  final String message;
 
   /**
    * The template used to create the correction to be displayed for this error, or `null` if
@@ -3188,9 +3198,7 @@
    *
    * @param message the message template used to create the message to be displayed for the error
    */
-  HtmlWarningCode.con1(String name, int ordinal, String message) : super(name, ordinal) {
-    this._message = message;
-  }
+  HtmlWarningCode.con1(String name, int ordinal, this.message) : super(name, ordinal);
 
   /**
    * Initialize a newly created error code to have the given message and correction.
@@ -3198,8 +3206,7 @@
    * @param message the template used to create the message to be displayed for the error
    * @param correction the template used to create the correction to be displayed for the error
    */
-  HtmlWarningCode.con2(String name, int ordinal, String message, String correction) : super(name, ordinal) {
-    this._message = message;
+  HtmlWarningCode.con2(String name, int ordinal, this.message, String correction) : super(name, ordinal) {
     this.correction4 = correction;
   }
 
@@ -3207,8 +3214,6 @@
 
   ErrorSeverity get errorSeverity => ErrorSeverity.WARNING;
 
-  String get message => _message;
-
   ErrorType get type => ErrorType.STATIC_WARNING;
 }
 
@@ -3507,7 +3512,7 @@
   /**
    * The template used to create the message to be displayed for this error.
    */
-  String _message;
+  final String message;
 
   /**
    * The template used to create the correction to be displayed for this error, or `null` if
@@ -3520,9 +3525,7 @@
    *
    * @param message the message template used to create the message to be displayed for the error
    */
-  StaticTypeWarningCode.con1(String name, int ordinal, String message) : super(name, ordinal) {
-    this._message = message;
-  }
+  StaticTypeWarningCode.con1(String name, int ordinal, this.message) : super(name, ordinal);
 
   /**
    * Initialize a newly created error code to have the given message and correction.
@@ -3530,8 +3533,7 @@
    * @param message the template used to create the message to be displayed for the error
    * @param correction the template used to create the correction to be displayed for the error
    */
-  StaticTypeWarningCode.con2(String name, int ordinal, String message, String correction) : super(name, ordinal) {
-    this._message = message;
+  StaticTypeWarningCode.con2(String name, int ordinal, this.message, String correction) : super(name, ordinal) {
     this.correction6 = correction;
   }
 
@@ -3539,7 +3541,5 @@
 
   ErrorSeverity get errorSeverity => ErrorType.STATIC_TYPE_WARNING.severity;
 
-  String get message => _message;
-
   ErrorType get type => ErrorType.STATIC_TYPE_WARNING;
 }
\ No newline at end of file
diff --git a/pkg/analyzer/lib/src/generated/html.dart b/pkg/analyzer/lib/src/generated/html.dart
index 3924cec..d373bbc 100644
--- a/pkg/analyzer/lib/src/generated/html.dart
+++ b/pkg/analyzer/lib/src/generated/html.dart
@@ -24,7 +24,7 @@
   /**
    * The offset from the beginning of the file to the first character in the token.
    */
-  int offset = 0;
+  int _offset = 0;
 
   /**
    * The previous token in the token stream.
@@ -34,17 +34,17 @@
   /**
    * The next token in the token stream.
    */
-  Token next;
+  Token _next;
 
   /**
    * The type of the token.
    */
-  TokenType type;
+  TokenType _type;
 
   /**
    * The lexeme represented by this token.
    */
-  String lexeme;
+  String _value;
 
   /**
    * Initialize a newly created token.
@@ -62,9 +62,9 @@
    * @param value the lexeme represented by this token (not `null`)
    */
   Token.con2(TokenType type, int offset, String value) {
-    this.type = type;
-    this.lexeme = StringUtilities.intern(value);
-    this.offset = offset;
+    this._type = type;
+    this._value = StringUtilities.intern(value);
+    this._offset = offset;
   }
 
   /**
@@ -74,7 +74,7 @@
    * @return the offset from the beginning of the file to the first character after last character
    *         of the token
    */
-  int get end => offset + length;
+  int get end => _offset + length;
 
   /**
    * Return the number of characters in the node's source range.
@@ -84,6 +84,34 @@
   int get length => lexeme.length;
 
   /**
+   * Return the lexeme that represents this token.
+   *
+   * @return the lexeme (not `null`)
+   */
+  String get lexeme => _value;
+
+  /**
+   * Return the next token in the token stream.
+   *
+   * @return the next token in the token stream
+   */
+  Token get next => _next;
+
+  /**
+   * Return the offset from the beginning of the file to the first character in the token.
+   *
+   * @return the offset from the beginning of the file to the first character in the token
+   */
+  int get offset => _offset;
+
+  /**
+   * Answer the token type for the receiver.
+   *
+   * @return the token type (not `null`)
+   */
+  TokenType get type => _type;
+
+  /**
    * Return `true` if this token is a synthetic token. A synthetic token is a token that was
    * introduced by the parser in order to recover from an error in the code. Synthetic tokens always
    * have a length of zero (`0`).
@@ -100,7 +128,7 @@
    * @return the token that was passed in
    */
   Token setNext(Token token) {
-    next = token;
+    _next = token;
     token.previous = this;
     return token;
   }
@@ -116,17 +144,17 @@
   /**
    * The offset of the first character of the opening delimiter.
    */
-  int openingOffset = 0;
+  final int openingOffset;
 
   /**
    * The expression that is enclosed between the delimiters.
    */
-  Expression expression;
+  final Expression expression;
 
   /**
    * The offset of the first character of the closing delimiter.
    */
-  int closingOffset = 0;
+  final int closingOffset;
 
   /**
    * An empty array of embedded expressions.
@@ -140,11 +168,7 @@
    * @param expression the expression that is enclosed between the delimiters
    * @param closingOffset the offset of the first character of the closing delimiter
    */
-  EmbeddedExpression(int openingOffset, Expression expression, int closingOffset) {
-    this.openingOffset = openingOffset;
-    this.expression = expression;
-    this.closingOffset = closingOffset;
-  }
+  EmbeddedExpression(this.openingOffset, this.expression, this.closingOffset);
 }
 
 /**
@@ -156,11 +180,18 @@
   /**
    * The unit containing the parsed information (not `null`).
    */
-  HtmlUnit htmlUnit;
+  HtmlUnit _unit;
 
   HtmlParseResult(int modificationTime, Token token, List<int> lineStarts, HtmlUnit unit) : super(modificationTime, token, lineStarts) {
-    this.htmlUnit = unit;
+    this._unit = unit;
   }
+
+  /**
+   * Answer the unit generated by parsing the source
+   *
+   * @return the unit (not `null`)
+   */
+  HtmlUnit get htmlUnit => _unit;
 }
 
 /**
@@ -171,7 +202,7 @@
   /**
    * The expressions that are embedded in the tag's content.
    */
-  List<EmbeddedExpression> _expressions;
+  final List<EmbeddedExpression> expressions;
 
   /**
    * Initialize a newly created tag whose text content contains one or more embedded expressions.
@@ -186,11 +217,7 @@
    * @param nodeEnd the last token in the tag
    * @param expressions the expressions that are embedded in the value
    */
-  TagWithEmbeddedExpressions(Token nodeStart, Token tag, List<XmlAttributeNode> attributes, Token attributeEnd, List<XmlTagNode> tagNodes, Token contentEnd, Token closingTag, Token nodeEnd, List<EmbeddedExpression> expressions) : super(nodeStart, tag, attributes, attributeEnd, tagNodes, contentEnd, closingTag, nodeEnd) {
-    this._expressions = expressions;
-  }
-
-  List<EmbeddedExpression> get expressions => _expressions;
+  TagWithEmbeddedExpressions(Token nodeStart, Token tag, List<XmlAttributeNode> attributes, Token attributeEnd, List<XmlTagNode> tagNodes, Token contentEnd, Token closingTag, Token nodeEnd, this.expressions) : super(nodeStart, tag, attributes, attributeEnd, tagNodes, contentEnd, closingTag, nodeEnd);
 }
 
 /**
@@ -465,7 +492,7 @@
   /**
    * The expressions that are embedded in the attribute's value.
    */
-  List<EmbeddedExpression> _expressions;
+  final List<EmbeddedExpression> expressions;
 
   /**
    * Initialize a newly created attribute whose value contains one or more embedded expressions.
@@ -475,11 +502,7 @@
    * @param value the value of the attribute
    * @param expressions the expressions that are embedded in the value
    */
-  AttributeWithEmbeddedExpressions(Token name, Token equals, Token value, List<EmbeddedExpression> expressions) : super(name, equals, value) {
-    this._expressions = expressions;
-  }
-
-  List<EmbeddedExpression> get expressions => _expressions;
+  AttributeWithEmbeddedExpressions(Token name, Token equals, Token value, this.expressions) : super(name, equals, value);
 }
 
 /**
@@ -510,7 +533,7 @@
   /**
    * The source being scanned.
    */
-  Source source;
+  final Source source;
 
   /**
    * The token pointing to the head of the linked list of tokens.
@@ -537,8 +560,7 @@
    *
    * @param source the source being scanned
    */
-  AbstractScanner(Source source) {
-    this.source = source;
+  AbstractScanner(this.source) {
     _tokens = new Token.con1(TokenType.EOF, -1);
     _tokens.setNext(_tokens);
     _tail = _tokens;
@@ -816,23 +838,19 @@
   /**
    * The time at which the contents of the source were last set.
    */
-  int modificationTime = 0;
+  final int modificationTime;
 
   /**
    * The first token in the token stream (not `null`).
    */
-  Token token;
+  final Token token;
 
   /**
    * The line start information that was produced.
    */
-  List<int> lineStarts;
+  final List<int> lineStarts;
 
-  HtmlScanResult(int modificationTime, Token token, List<int> lineStarts) {
-    this.modificationTime = modificationTime;
-    this.token = token;
-    this.lineStarts = lineStarts;
-  }
+  HtmlScanResult(this.modificationTime, this.token, this.lineStarts);
 }
 
 /**
@@ -1079,11 +1097,9 @@
    * The lexeme that defines this type of token, or `null` if there is more than one possible
    * lexeme for this type of token.
    */
-  String lexeme;
+  final String lexeme;
 
-  TokenType(String name, int ordinal, String lexeme) : super(name, ordinal) {
-    this.lexeme = lexeme;
-  }
+  TokenType(String name, int ordinal, this.lexeme) : super(name, ordinal);
 }
 
 class TokenType_EOF extends TokenType {
@@ -1098,11 +1114,11 @@
  * @coverage dart.engine.html
  */
 class XmlAttributeNode extends XmlNode {
-  Token name;
+  final Token name;
 
-  Token equals;
+  final Token equals;
 
-  Token value;
+  final Token value;
 
   /**
    * Construct a new instance representing an XML attribute.
@@ -1112,11 +1128,7 @@
    * @param equals the equals sign or `null` if none
    * @param value the value token (not `null`)
    */
-  XmlAttributeNode(Token name, Token equals, Token value) {
-    this.name = name;
-    this.equals = equals;
-    this.value = value;
-  }
+  XmlAttributeNode(this.name, this.equals, this.value);
 
   accept(XmlVisitor visitor) => visitor.visitXmlAttributeNode(this);
 
@@ -1307,21 +1319,19 @@
   /**
    * The source being parsed.
    */
-  Source source;
+  final Source source;
 
   /**
    * The next token to be parsed.
    */
-  Token currentToken;
+  Token _currentToken;
 
   /**
    * Construct a parser for the specified source.
    *
    * @param source the source being parsed
    */
-  XmlParser(Source source) {
-    this.source = source;
-  }
+  XmlParser(this.source);
 
   /**
    * Create a node representing an attribute.
@@ -1364,19 +1374,19 @@
    * @return the list of tag nodes found (not `null`, contains no `null`)
    */
   List<XmlTagNode> parseTopTagNodes(Token firstToken) {
-    currentToken = firstToken;
+    _currentToken = firstToken;
     List<XmlTagNode> tagNodes = new List<XmlTagNode>();
     while (true) {
       while (true) {
-        if (currentToken.type == TokenType.LT) {
+        if (_currentToken.type == TokenType.LT) {
           tagNodes.add(parseTagNode());
-        } else if (currentToken.type == TokenType.DECLARATION || currentToken.type == TokenType.DIRECTIVE || currentToken.type == TokenType.COMMENT) {
-          currentToken = currentToken.next;
-        } else if (currentToken.type == TokenType.EOF) {
+        } else if (_currentToken.type == TokenType.DECLARATION || _currentToken.type == TokenType.DIRECTIVE || _currentToken.type == TokenType.COMMENT) {
+          _currentToken = _currentToken.next;
+        } else if (_currentToken.type == TokenType.EOF) {
           return tagNodes;
         } else {
           reportUnexpectedToken();
-          currentToken = currentToken.next;
+          _currentToken = _currentToken.next;
         }
         break;
       }
@@ -1384,15 +1394,22 @@
   }
 
   /**
+   * Answer the current token.
+   *
+   * @return the current token
+   */
+  Token get currentToken => _currentToken;
+
+  /**
    * Insert a synthetic token of the specified type before the current token
    *
    * @param type the type of token to be inserted (not `null`)
    * @return the synthetic token that was inserted (not `null`)
    */
   Token insertSyntheticToken(TokenType type) {
-    Token token = new Token.con2(type, currentToken.offset, "");
-    currentToken.previous.setNext(token);
-    token.setNext(currentToken);
+    Token token = new Token.con2(type, _currentToken.offset, "");
+    _currentToken.previous.setNext(token);
+    token.setNext(_currentToken);
     return token;
   }
 
@@ -1403,20 +1420,20 @@
    * @return the attribute (not `null`)
    */
   XmlAttributeNode parseAttribute() {
-    Token name = currentToken;
-    currentToken = currentToken.next;
+    Token name = _currentToken;
+    _currentToken = _currentToken.next;
     Token equals;
-    if (identical(currentToken.type, TokenType.EQ)) {
-      equals = currentToken;
-      currentToken = currentToken.next;
+    if (identical(_currentToken.type, TokenType.EQ)) {
+      equals = _currentToken;
+      _currentToken = _currentToken.next;
     } else {
       reportUnexpectedToken();
       equals = insertSyntheticToken(TokenType.EQ);
     }
     Token value;
-    if (identical(currentToken.type, TokenType.STRING)) {
-      value = currentToken;
-      currentToken = currentToken.next;
+    if (identical(_currentToken.type, TokenType.STRING)) {
+      value = _currentToken;
+      _currentToken = _currentToken.next;
     } else {
       reportUnexpectedToken();
       value = insertSyntheticToken(TokenType.STRING);
@@ -1431,20 +1448,20 @@
    * @return a collection of zero or more attributes (not `null`, contains no `null`s)
    */
   List<XmlAttributeNode> parseAttributes() {
-    TokenType type = currentToken.type;
+    TokenType type = _currentToken.type;
     if (identical(type, TokenType.GT) || identical(type, TokenType.SLASH_GT) || identical(type, TokenType.EOF)) {
       return XmlTagNode.NO_ATTRIBUTES;
     }
     List<XmlAttributeNode> attributes = new List<XmlAttributeNode>();
     while (true) {
       while (true) {
-        if (currentToken.type == TokenType.GT || currentToken.type == TokenType.SLASH_GT || currentToken.type == TokenType.EOF) {
+        if (_currentToken.type == TokenType.GT || _currentToken.type == TokenType.SLASH_GT || _currentToken.type == TokenType.EOF) {
           return attributes;
-        } else if (currentToken.type == TokenType.TAG) {
+        } else if (_currentToken.type == TokenType.TAG) {
           attributes.add(parseAttribute());
         } else {
           reportUnexpectedToken();
-          currentToken = currentToken.next;
+          _currentToken = _currentToken.next;
         }
         break;
       }
@@ -1458,22 +1475,22 @@
    * @return a list of nodes (not `null`, contains no `null`s)
    */
   List<XmlTagNode> parseChildTagNodes() {
-    TokenType type = currentToken.type;
+    TokenType type = _currentToken.type;
     if (identical(type, TokenType.LT_SLASH) || identical(type, TokenType.EOF)) {
       return XmlTagNode.NO_TAG_NODES;
     }
     List<XmlTagNode> nodes = new List<XmlTagNode>();
     while (true) {
       while (true) {
-        if (currentToken.type == TokenType.LT) {
+        if (_currentToken.type == TokenType.LT) {
           nodes.add(parseTagNode());
-        } else if (currentToken.type == TokenType.LT_SLASH || currentToken.type == TokenType.EOF) {
+        } else if (_currentToken.type == TokenType.LT_SLASH || _currentToken.type == TokenType.EOF) {
           return nodes;
-        } else if (currentToken.type == TokenType.COMMENT) {
-          currentToken = currentToken.next;
+        } else if (_currentToken.type == TokenType.COMMENT) {
+          _currentToken = _currentToken.next;
         } else {
           reportUnexpectedToken();
-          currentToken = currentToken.next;
+          _currentToken = _currentToken.next;
         }
         break;
       }
@@ -1487,49 +1504,49 @@
    * @return the tag node or `null` if none found
    */
   XmlTagNode parseTagNode() {
-    Token nodeStart = currentToken;
-    currentToken = currentToken.next;
+    Token nodeStart = _currentToken;
+    _currentToken = _currentToken.next;
     Token tag;
-    if (identical(currentToken.type, TokenType.TAG)) {
-      tag = currentToken;
-      currentToken = currentToken.next;
+    if (identical(_currentToken.type, TokenType.TAG)) {
+      tag = _currentToken;
+      _currentToken = _currentToken.next;
     } else {
       reportUnexpectedToken();
       tag = insertSyntheticToken(TokenType.TAG);
     }
     List<XmlAttributeNode> attributes = parseAttributes();
     Token attributeEnd;
-    if (identical(currentToken.type, TokenType.GT) || identical(currentToken.type, TokenType.SLASH_GT)) {
-      attributeEnd = currentToken;
-      currentToken = currentToken.next;
+    if (identical(_currentToken.type, TokenType.GT) || identical(_currentToken.type, TokenType.SLASH_GT)) {
+      attributeEnd = _currentToken;
+      _currentToken = _currentToken.next;
     } else {
       reportUnexpectedToken();
       attributeEnd = insertSyntheticToken(TokenType.SLASH_GT);
     }
     if (identical(attributeEnd.type, TokenType.SLASH_GT) || isSelfClosing(tag)) {
-      return createTagNode(nodeStart, tag, attributes, attributeEnd, XmlTagNode.NO_TAG_NODES, currentToken, null, attributeEnd);
+      return createTagNode(nodeStart, tag, attributes, attributeEnd, XmlTagNode.NO_TAG_NODES, _currentToken, null, attributeEnd);
     }
     List<XmlTagNode> tagNodes = parseChildTagNodes();
     Token contentEnd;
-    if (identical(currentToken.type, TokenType.LT_SLASH)) {
-      contentEnd = currentToken;
-      currentToken = currentToken.next;
+    if (identical(_currentToken.type, TokenType.LT_SLASH)) {
+      contentEnd = _currentToken;
+      _currentToken = _currentToken.next;
     } else {
       reportUnexpectedToken();
       contentEnd = insertSyntheticToken(TokenType.LT_SLASH);
     }
     Token closingTag;
-    if (identical(currentToken.type, TokenType.TAG)) {
-      closingTag = currentToken;
-      currentToken = currentToken.next;
+    if (identical(_currentToken.type, TokenType.TAG)) {
+      closingTag = _currentToken;
+      _currentToken = _currentToken.next;
     } else {
       reportUnexpectedToken();
       closingTag = insertSyntheticToken(TokenType.TAG);
     }
     Token nodeEnd;
-    if (identical(currentToken.type, TokenType.GT)) {
-      nodeEnd = currentToken;
-      currentToken = currentToken.next;
+    if (identical(_currentToken.type, TokenType.GT)) {
+      nodeEnd = _currentToken;
+      _currentToken = _currentToken.next;
     } else {
       reportUnexpectedToken();
       nodeEnd = insertSyntheticToken(TokenType.GT);
@@ -1564,29 +1581,29 @@
   /**
    * The starting [TokenType#LT] token (not `null`).
    */
-  Token nodeStart;
+  final Token nodeStart;
 
   /**
    * The [TokenType#TAG] token after the starting '&lt;' (not `null`).
    */
-  Token tag;
+  final Token tag;
 
   /**
    * The attributes contained by the receiver (not `null`, contains no `null`s).
    */
-  List<XmlAttributeNode> attributes;
+  List<XmlAttributeNode> _attributes;
 
   /**
    * The [TokenType#GT] or [TokenType#SLASH_GT] token after the attributes (not
    * `null`). The token may be the same token as [nodeEnd] if there are no child
    * [tagNodes].
    */
-  Token attributeEnd;
+  final Token attributeEnd;
 
   /**
    * The tag nodes contained in the receiver (not `null`, contains no `null`s).
    */
-  List<XmlTagNode> tagNodes;
+  List<XmlTagNode> _tagNodes;
 
   /**
    * The token (not `null`) after the content, which may be
@@ -1599,18 +1616,18 @@
    * content and the attributes ended with [TokenType#SLASH_GT].
    *
    */
-  Token contentEnd;
+  final Token contentEnd;
 
   /**
    * The closing [TokenType#TAG] after the child elements or `null` if there is no
    * content and the attributes ended with [TokenType#SLASH_GT]
    */
-  Token closingTag;
+  final Token closingTag;
 
   /**
    * The ending [TokenType#GT] or [TokenType#SLASH_GT] token (not `null`).
    */
-  Token nodeEnd;
+  final Token nodeEnd;
 
   /**
    * Construct a new instance representing an XML or HTML element
@@ -1638,15 +1655,9 @@
    * @param nodeEnd the ending [TokenType#GT] or [TokenType#SLASH_GT] token (not
    *          `null`)
    */
-  XmlTagNode(Token nodeStart, Token tag, List<XmlAttributeNode> attributes, Token attributeEnd, List<XmlTagNode> tagNodes, Token contentEnd, Token closingTag, Token nodeEnd) {
-    this.nodeStart = nodeStart;
-    this.tag = tag;
-    this.attributes = becomeParentOfEmpty(attributes, NO_ATTRIBUTES);
-    this.attributeEnd = attributeEnd;
-    this.tagNodes = becomeParentOfEmpty(tagNodes, NO_TAG_NODES);
-    this.contentEnd = contentEnd;
-    this.closingTag = closingTag;
-    this.nodeEnd = nodeEnd;
+  XmlTagNode(this.nodeStart, this.tag, List<XmlAttributeNode> attributes, this.attributeEnd, List<XmlTagNode> tagNodes, this.contentEnd, this.closingTag, this.nodeEnd) {
+    this._attributes = becomeParentOfEmpty(attributes, NO_ATTRIBUTES);
+    this._tagNodes = becomeParentOfEmpty(tagNodes, NO_TAG_NODES);
   }
 
   accept(XmlVisitor visitor) => visitor.visitXmlTagNode(this);
@@ -1658,7 +1669,7 @@
    * @return the attribute or `null` if no matching attribute is found
    */
   XmlAttributeNode getAttribute(String name) {
-    for (XmlAttributeNode attribute in attributes) {
+    for (XmlAttributeNode attribute in _attributes) {
       if (attribute.name.lexeme == name) {
         return attribute;
       }
@@ -1667,6 +1678,14 @@
   }
 
   /**
+   * Answer the receiver's attributes. Callers should not manipulate the returned list to edit the
+   * AST structure.
+   *
+   * @return the attributes (not `null`, contains no `null`s)
+   */
+  List<XmlAttributeNode> get attributes => _attributes;
+
+  /**
    * Find the attribute with the given name (see [getAttribute] and answer the lexeme
    * for the attribute's value token without the leading and trailing quotes (see
    * [XmlAttributeNode#getText]).
@@ -1716,14 +1735,14 @@
     if (contentEnd != null) {
       return contentEnd;
     }
-    if (!tagNodes.isEmpty) {
-      return tagNodes[tagNodes.length - 1].endToken;
+    if (!_tagNodes.isEmpty) {
+      return _tagNodes[_tagNodes.length - 1].endToken;
     }
     if (attributeEnd != null) {
       return attributeEnd;
     }
-    if (!attributes.isEmpty) {
-      return attributes[attributes.length - 1].endToken;
+    if (!_attributes.isEmpty) {
+      return _attributes[_attributes.length - 1].endToken;
     }
     return tag;
   }
@@ -1735,11 +1754,19 @@
    */
   List<EmbeddedExpression> get expressions => EmbeddedExpression.EMPTY_ARRAY;
 
+  /**
+   * Answer the tag nodes contained in the receiver. Callers should not manipulate the returned list
+   * to edit the AST structure.
+   *
+   * @return the children (not `null`, contains no `null`s)
+   */
+  List<XmlTagNode> get tagNodes => _tagNodes;
+
   void visitChildren(XmlVisitor visitor) {
-    for (XmlAttributeNode node in attributes) {
+    for (XmlAttributeNode node in _attributes) {
       node.accept(visitor);
     }
-    for (XmlTagNode node in tagNodes) {
+    for (XmlTagNode node in _tagNodes) {
       node.accept(visitor);
     }
   }
@@ -1962,18 +1989,18 @@
   /**
    * The first token in the token stream that was parsed to form this HTML unit.
    */
-  Token _beginToken;
+  final Token beginToken;
 
   /**
    * The last token in the token stream that was parsed to form this compilation unit. This token
    * should always have a type of [TokenType.EOF].
    */
-  Token _endToken;
+  final Token endToken;
 
   /**
    * The tag nodes contained in the receiver (not `null`, contains no `null`s).
    */
-  List<XmlTagNode> tagNodes;
+  List<XmlTagNode> _tagNodes;
 
   /**
    * The element associated with this HTML unit or `null` if the receiver is not resolved.
@@ -1988,20 +2015,22 @@
    * @param endToken the last token in the token stream which should be of type
    *          [TokenType.EOF]
    */
-  HtmlUnit(Token beginToken, List<XmlTagNode> tagNodes, Token endToken) {
-    this._beginToken = beginToken;
-    this.tagNodes = becomeParentOf(tagNodes);
-    this._endToken = endToken;
+  HtmlUnit(this.beginToken, List<XmlTagNode> tagNodes, this.endToken) {
+    this._tagNodes = becomeParentOf(tagNodes);
   }
 
   accept(XmlVisitor visitor) => visitor.visitHtmlUnit(this);
 
-  Token get beginToken => _beginToken;
-
-  Token get endToken => _endToken;
+  /**
+   * Answer the tag nodes contained in the receiver. Callers should not manipulate the returned list
+   * to edit the AST structure.
+   *
+   * @return the children (not `null`, contains no `null`s)
+   */
+  List<XmlTagNode> get tagNodes => _tagNodes;
 
   void visitChildren(XmlVisitor visitor) {
-    for (XmlTagNode node in tagNodes) {
+    for (XmlTagNode node in _tagNodes) {
       node.accept(visitor);
     }
   }
diff --git a/pkg/analyzer/lib/src/generated/instrumentation.dart b/pkg/analyzer/lib/src/generated/instrumentation.dart
index a9c7b7b..f75ac2a 100644
--- a/pkg/analyzer/lib/src/generated/instrumentation.dart
+++ b/pkg/analyzer/lib/src/generated/instrumentation.dart
@@ -40,7 +40,7 @@
   /**
    * A builder that will silently ignore all data and logging requests.
    */
-  static final InstrumentationBuilder nullBuilder = new InstrumentationBuilder_18();
+  static InstrumentationBuilder _NULL_INSTRUMENTATION_BUILDER = new InstrumentationBuilder_18();
 
   /**
    * An instrumentation logger that can be used when no other instrumentation logger has been
@@ -75,6 +75,13 @@
   static InstrumentationLogger get logger => _CURRENT_LOGGER;
 
   /**
+   * Return a builder that will silently ignore all data and logging requests.
+   *
+   * @return the builder (not `null`)
+   */
+  static InstrumentationBuilder get nullBuilder => _NULL_INSTRUMENTATION_BUILDER;
+
+  /**
    * Is this instrumentation system currently configured to drop instrumentation data provided to
    * it?
    *
@@ -121,7 +128,7 @@
 }
 
 class InstrumentationLogger_19 implements InstrumentationLogger {
-  InstrumentationBuilder createBuilder(String name) => Instrumentation.nullBuilder;
+  InstrumentationBuilder createBuilder(String name) => Instrumentation._NULL_INSTRUMENTATION_BUILDER;
 }
 
 /**
diff --git a/pkg/analyzer/lib/src/generated/java_engine.dart b/pkg/analyzer/lib/src/generated/java_engine.dart
index 265e323..21a205b 100644
--- a/pkg/analyzer/lib/src/generated/java_engine.dart
+++ b/pkg/analyzer/lib/src/generated/java_engine.dart
@@ -37,6 +37,10 @@
   }
 }
 
+class ObjectUtilities {
+  static int combineHashCodes(int first, int second) => first * 31 + second;
+}
+
 class UUID {
   static int __nextId = 0;
   final String id;
diff --git a/pkg/analyzer/lib/src/generated/parser.dart b/pkg/analyzer/lib/src/generated/parser.dart
index fc20dc5..2d26f34 100644
--- a/pkg/analyzer/lib/src/generated/parser.dart
+++ b/pkg/analyzer/lib/src/generated/parser.dart
@@ -24,12 +24,12 @@
   /**
    * The documentation comment that was parsed, or `null` if none was given.
    */
-  Comment comment;
+  final Comment comment;
 
   /**
    * The metadata that was parsed.
    */
-  List<Annotation> metadata;
+  final List<Annotation> metadata;
 
   /**
    * Initialize a newly created holder with the given data.
@@ -37,10 +37,7 @@
    * @param comment the documentation comment that was parsed
    * @param metadata the metadata that was parsed
    */
-  CommentAndMetadata(Comment comment, List<Annotation> metadata) {
-    this.comment = comment;
-    this.metadata = metadata;
-  }
+  CommentAndMetadata(this.comment, this.metadata);
 }
 
 /**
@@ -53,12 +50,12 @@
   /**
    * The 'final', 'const' or 'var' keyword, or `null` if none was given.
    */
-  Token keyword;
+  final Token keyword;
 
   /**
    * The type, of `null` if no type was specified.
    */
-  TypeName type;
+  final TypeName type;
 
   /**
    * Initialize a newly created holder with the given data.
@@ -66,10 +63,7 @@
    * @param keyword the 'final', 'const' or 'var' keyword
    * @param type the type
    */
-  FinalConstVarOrType(Token keyword, TypeName type) {
-    this.keyword = keyword;
-    this.type = type;
-  }
+  FinalConstVarOrType(this.keyword, this.type);
 }
 
 /**
@@ -1148,6 +1142,11 @@
   AnalysisErrorListener _errorListener;
 
   /**
+   * The node in the AST structure that contains the revised content.
+   */
+  ASTNode _updatedNode;
+
+  /**
    * Initialize a newly created incremental parser to parse a portion of the content of the given
    * source.
    *
@@ -1163,6 +1162,13 @@
   }
 
   /**
+   * Return the node in the AST structure that contains the revised content.
+   *
+   * @return the updated node
+   */
+  ASTNode get updatedNode => _updatedNode;
+
+  /**
    * Given a range of tokens that were re-scanned, re-parse the minimum number of tokens to produce
    * a consistent AST structure. The range is represented by the first and last tokens in the range.
    * The tokens are assumed to be contained in the same token stream.
@@ -1221,6 +1227,7 @@
         parser.currentToken = parseToken;
       }
     }
+    _updatedNode = newNode;
     if (identical(oldNode, originalStructure)) {
       ResolutionCopier.copyResolutionData(oldNode, newNode);
       return newNode as ASTNode;
@@ -1255,10 +1262,7 @@
     while (firstToken.offset > offset && firstToken.type != TokenType.EOF) {
       firstToken = firstToken.previous;
     }
-    if (firstToken.offset == offset) {
-      return firstToken;
-    }
-    return null;
+    return firstToken;
   }
 }
 
@@ -1305,6 +1309,16 @@
   AnalysisErrorListener _errorListener;
 
   /**
+   * An [errorListener] lock, if more than `0`, then errors are not reported.
+   */
+  int _errorListenerLock = 0;
+
+  /**
+   * A flag indicating whether parser is to parse function bodies.
+   */
+  bool _parseFunctionBodies = true;
+
+  /**
    * The next token to be parsed.
    */
   Token _currentToken;
@@ -1409,6 +1423,15 @@
   }
 
   /**
+   * Set whether parser is to parse function bodies.
+   *
+   * @param parseFunctionBodies `true` if parser is to parse function bodies
+   */
+  void set parseFunctionBodies(bool parseFunctionBodies) {
+    this._parseFunctionBodies = parseFunctionBodies;
+  }
+
+  /**
    * Parse an annotation.
    *
    * <pre>
@@ -1431,7 +1454,7 @@
     if (matches5(TokenType.OPEN_PAREN)) {
       arguments = parseArgumentList();
     }
-    return new Annotation.full(atSign, name, period, constructorName, arguments);
+    return new Annotation(atSign, name, period, constructorName, arguments);
   }
 
   /**
@@ -1450,7 +1473,7 @@
    */
   Expression parseArgument() {
     if (matchesIdentifier() && matches4(peek(), TokenType.COLON)) {
-      return new NamedExpression.full(parseLabel(), parseExpression2());
+      return new NamedExpression(parseLabel(), parseExpression2());
     } else {
       return parseExpression2();
     }
@@ -1474,7 +1497,7 @@
     Token leftParenthesis = expect2(TokenType.OPEN_PAREN);
     List<Expression> arguments = new List<Expression>();
     if (matches5(TokenType.CLOSE_PAREN)) {
-      return new ArgumentList.full(leftParenthesis, arguments, andAdvance);
+      return new ArgumentList(leftParenthesis, arguments, andAdvance);
     }
     Expression argument = parseArgument();
     arguments.add(argument);
@@ -1485,7 +1508,7 @@
       arguments.add(argument);
       if (foundNamedArgument) {
         if (!generatedError && argument is! NamedExpression) {
-          reportError9(ParserErrorCode.POSITIONAL_AFTER_NAMED_ARGUMENT, []);
+          reportError10(ParserErrorCode.POSITIONAL_AFTER_NAMED_ARGUMENT, []);
           generatedError = true;
         }
       } else if (argument is NamedExpression) {
@@ -1493,7 +1516,7 @@
       }
     }
     Token rightParenthesis = expect2(TokenType.CLOSE_PAREN);
-    return new ArgumentList.full(leftParenthesis, arguments, rightParenthesis);
+    return new ArgumentList(leftParenthesis, arguments, rightParenthesis);
   }
 
   /**
@@ -1510,13 +1533,13 @@
   Expression parseBitwiseOrExpression() {
     Expression expression;
     if (matches(Keyword.SUPER) && matches4(peek(), TokenType.BAR)) {
-      expression = new SuperExpression.full(andAdvance);
+      expression = new SuperExpression(andAdvance);
     } else {
       expression = parseBitwiseXorExpression();
     }
     while (matches5(TokenType.BAR)) {
       Token operator = andAdvance;
-      expression = new BinaryExpression.full(expression, operator, parseBitwiseXorExpression());
+      expression = new BinaryExpression(expression, operator, parseBitwiseXorExpression());
     }
     return expression;
   }
@@ -1541,13 +1564,13 @@
         statements.add(statement);
       }
       if (identical(_currentToken, statementStart)) {
-        reportError10(ParserErrorCode.UNEXPECTED_TOKEN, _currentToken, [_currentToken.lexeme]);
+        reportError11(ParserErrorCode.UNEXPECTED_TOKEN, _currentToken, [_currentToken.lexeme]);
         advance();
       }
       statementStart = _currentToken;
     }
     Token rightBracket = expect2(TokenType.CLOSE_CURLY_BRACKET);
-    return new Block.full(leftBracket, statements, rightBracket);
+    return new Block(leftBracket, statements, rightBracket);
   }
 
   /**
@@ -1586,7 +1609,7 @@
       } else {
         if (matchesIdentifier()) {
           if (matchesAny(peek(), [TokenType.EQ, TokenType.COMMA, TokenType.SEMICOLON])) {
-            reportError(ParserErrorCode.VOID_VARIABLE, returnType, []);
+            reportError9(ParserErrorCode.VOID_VARIABLE, returnType, []);
             return parseInitializedIdentifierList(commentAndMetadata, modifiers.staticKeyword, validateModifiersForField(modifiers), returnType);
           }
         }
@@ -1594,7 +1617,7 @@
           validateModifiersForOperator(modifiers);
           return parseOperator(commentAndMetadata, modifiers.externalKeyword, returnType);
         }
-        reportError10(ParserErrorCode.EXPECTED_EXECUTABLE, _currentToken, []);
+        reportError11(ParserErrorCode.EXPECTED_EXECUTABLE, _currentToken, []);
         return null;
       }
     } else if (matches(Keyword.GET) && matchesIdentifier2(peek())) {
@@ -1611,7 +1634,7 @@
         validateModifiersForOperator(modifiers);
         return parseOperator(commentAndMetadata, modifiers.externalKeyword, null);
       }
-      reportError10(ParserErrorCode.EXPECTED_CLASS_MEMBER, _currentToken, []);
+      reportError11(ParserErrorCode.EXPECTED_CLASS_MEMBER, _currentToken, []);
       return null;
     } else if (matches4(peek(), TokenType.PERIOD) && matchesIdentifier2(peek2(2)) && matches4(peek2(3), TokenType.OPEN_PAREN)) {
       return parseConstructor(commentAndMetadata, modifiers.externalKeyword, validateModifiersForConstructor(modifiers), modifiers.factoryKeyword, parseSimpleIdentifier(), andAdvance, parseSimpleIdentifier(), parseFormalParameterList());
@@ -1626,7 +1649,7 @@
       return parseMethodDeclaration2(commentAndMetadata, modifiers.externalKeyword, modifiers.staticKeyword, null, methodName, parameters);
     } else if (matchesAny(peek(), [TokenType.EQ, TokenType.COMMA, TokenType.SEMICOLON])) {
       if (modifiers.constKeyword == null && modifiers.finalKeyword == null && modifiers.varKeyword == null) {
-        reportError9(ParserErrorCode.MISSING_CONST_FINAL_VAR_OR_TYPE, []);
+        reportError10(ParserErrorCode.MISSING_CONST_FINAL_VAR_OR_TYPE, []);
       }
       return parseInitializedIdentifierList(commentAndMetadata, modifiers.staticKeyword, validateModifiersForField(modifiers), null);
     }
@@ -1648,13 +1671,18 @@
         validateModifiersForOperator(modifiers);
         return parseOperator(commentAndMetadata, modifiers.externalKeyword, type);
       }
-      reportError10(ParserErrorCode.EXPECTED_CLASS_MEMBER, _currentToken, []);
-      return null;
+      reportError11(ParserErrorCode.EXPECTED_CLASS_MEMBER, _currentToken, []);
+      try {
+        lockErrorListener();
+        return parseInitializedIdentifierList(commentAndMetadata, modifiers.staticKeyword, validateModifiersForField(modifiers), type);
+      } finally {
+        unlockErrorListener();
+      }
     } else if (matches4(peek(), TokenType.OPEN_PAREN)) {
       SimpleIdentifier methodName = parseSimpleIdentifier();
       FormalParameterList parameters = parseFormalParameterList();
       if (methodName.name == className) {
-        reportError(ParserErrorCode.CONSTRUCTOR_WITH_RETURN_TYPE, type, []);
+        reportError9(ParserErrorCode.CONSTRUCTOR_WITH_RETURN_TYPE, type, []);
         return parseConstructor(commentAndMetadata, modifiers.externalKeyword, validateModifiersForConstructor(modifiers), modifiers.factoryKeyword, methodName, null, null, parameters);
       }
       validateModifiersForGetterOrSetterOrMethod(modifiers);
@@ -1690,7 +1718,7 @@
     Token firstToken = _currentToken;
     ScriptTag scriptTag = null;
     if (matches5(TokenType.SCRIPT_TAG)) {
-      scriptTag = new ScriptTag.full(andAdvance);
+      scriptTag = new ScriptTag(andAdvance);
     }
     bool libraryDirectiveFound = false;
     bool partOfDirectiveFound = false;
@@ -1704,15 +1732,15 @@
       if ((matches(Keyword.IMPORT) || matches(Keyword.EXPORT) || matches(Keyword.LIBRARY) || matches(Keyword.PART)) && !matches4(peek(), TokenType.PERIOD) && !matches4(peek(), TokenType.LT) && !matches4(peek(), TokenType.OPEN_PAREN)) {
         Directive directive = parseDirective(commentAndMetadata);
         if (declarations.length > 0 && !directiveFoundAfterDeclaration) {
-          reportError9(ParserErrorCode.DIRECTIVE_AFTER_DECLARATION, []);
+          reportError10(ParserErrorCode.DIRECTIVE_AFTER_DECLARATION, []);
           directiveFoundAfterDeclaration = true;
         }
         if (directive is LibraryDirective) {
           if (libraryDirectiveFound) {
-            reportError9(ParserErrorCode.MULTIPLE_LIBRARY_DIRECTIVES, []);
+            reportError10(ParserErrorCode.MULTIPLE_LIBRARY_DIRECTIVES, []);
           } else {
             if (directives.length > 0) {
-              reportError9(ParserErrorCode.LIBRARY_DIRECTIVE_NOT_FIRST, []);
+              reportError10(ParserErrorCode.LIBRARY_DIRECTIVE_NOT_FIRST, []);
             }
             libraryDirectiveFound = true;
           }
@@ -1720,29 +1748,29 @@
           partDirectiveFound = true;
         } else if (partDirectiveFound) {
           if (directive is ExportDirective) {
-            reportError10(ParserErrorCode.EXPORT_DIRECTIVE_AFTER_PART_DIRECTIVE, (directive as NamespaceDirective).keyword, []);
+            reportError11(ParserErrorCode.EXPORT_DIRECTIVE_AFTER_PART_DIRECTIVE, (directive as NamespaceDirective).keyword, []);
           } else if (directive is ImportDirective) {
-            reportError10(ParserErrorCode.IMPORT_DIRECTIVE_AFTER_PART_DIRECTIVE, (directive as NamespaceDirective).keyword, []);
+            reportError11(ParserErrorCode.IMPORT_DIRECTIVE_AFTER_PART_DIRECTIVE, (directive as NamespaceDirective).keyword, []);
           }
         }
         if (directive is PartOfDirective) {
           if (partOfDirectiveFound) {
-            reportError9(ParserErrorCode.MULTIPLE_PART_OF_DIRECTIVES, []);
+            reportError10(ParserErrorCode.MULTIPLE_PART_OF_DIRECTIVES, []);
           } else {
             int directiveCount = directives.length;
             for (int i = 0; i < directiveCount; i++) {
-              reportError10(ParserErrorCode.NON_PART_OF_DIRECTIVE_IN_PART, directives[i].keyword, []);
+              reportError11(ParserErrorCode.NON_PART_OF_DIRECTIVE_IN_PART, directives[i].keyword, []);
             }
             partOfDirectiveFound = true;
           }
         } else {
           if (partOfDirectiveFound) {
-            reportError10(ParserErrorCode.NON_PART_OF_DIRECTIVE_IN_PART, directive.keyword, []);
+            reportError11(ParserErrorCode.NON_PART_OF_DIRECTIVE_IN_PART, directive.keyword, []);
           }
         }
         directives.add(directive);
       } else if (matches5(TokenType.SEMICOLON)) {
-        reportError10(ParserErrorCode.UNEXPECTED_TOKEN, _currentToken, [_currentToken.lexeme]);
+        reportError11(ParserErrorCode.UNEXPECTED_TOKEN, _currentToken, [_currentToken.lexeme]);
         advance();
       } else {
         CompilationUnitMember member = parseCompilationUnitMember(commentAndMetadata);
@@ -1751,7 +1779,7 @@
         }
       }
       if (identical(_currentToken, memberStart)) {
-        reportError10(ParserErrorCode.UNEXPECTED_TOKEN, _currentToken, [_currentToken.lexeme]);
+        reportError11(ParserErrorCode.UNEXPECTED_TOKEN, _currentToken, [_currentToken.lexeme]);
         advance();
         while (!matches5(TokenType.EOF) && !couldBeStartOfCompilationUnitMember()) {
           advance();
@@ -1759,7 +1787,7 @@
       }
       memberStart = _currentToken;
     }
-    return new CompilationUnit.full(firstToken, scriptTag, directives, declarations, _currentToken);
+    return new CompilationUnit(firstToken, scriptTag, directives, declarations, _currentToken);
   }
 
   /**
@@ -1781,7 +1809,7 @@
     Expression thenExpression = parseExpressionWithoutCascade();
     Token colon = expect2(TokenType.COLON);
     Expression elseExpression = parseExpressionWithoutCascade();
-    return new ConditionalExpression.full(condition, question, thenExpression, colon, elseExpression);
+    return new ConditionalExpression(condition, question, thenExpression, colon, elseExpression);
   }
 
   /**
@@ -1802,7 +1830,7 @@
       period = andAdvance;
       name = parseSimpleIdentifier();
     }
-    return new ConstructorName.full(type, period, name);
+    return new ConstructorName(type, period, name);
   }
 
   /**
@@ -1834,11 +1862,11 @@
         }
         tokenType = _currentToken.type;
       }
-      return new CascadeExpression.full(expression, cascadeSections);
+      return new CascadeExpression(expression, cascadeSections);
     } else if (tokenType.isAssignmentOperator) {
       Token operator = andAdvance;
       ensureAssignable(expression);
-      return new AssignmentExpression.full(expression, operator, parseExpression2());
+      return new AssignmentExpression(expression, operator, parseExpression2());
     }
     return expression;
   }
@@ -1865,7 +1893,7 @@
     if (_currentToken.type.isAssignmentOperator) {
       Token operator = andAdvance;
       ensureAssignable(expression);
-      expression = new AssignmentExpression.full(expression, operator, parseExpressionWithoutCascade());
+      expression = new AssignmentExpression(expression, operator, parseExpressionWithoutCascade());
     }
     return expression;
   }
@@ -1883,7 +1911,7 @@
   ExtendsClause parseExtendsClause() {
     Token keyword = expect(Keyword.EXTENDS);
     TypeName superclass = parseTypeName();
-    return new ExtendsClause.full(keyword, superclass);
+    return new ExtendsClause(keyword, superclass);
   }
 
   /**
@@ -1914,7 +1942,7 @@
   FormalParameterList parseFormalParameterList() {
     Token leftParenthesis = expect2(TokenType.OPEN_PAREN);
     if (matches5(TokenType.CLOSE_PAREN)) {
-      return new FormalParameterList.full(leftParenthesis, null, null, null, andAdvance);
+      return new FormalParameterList(leftParenthesis, null, null, null, andAdvance);
     }
     List<FormalParameter> parameters = new List<FormalParameter>();
     List<FormalParameter> normalParameters = new List<FormalParameter>();
@@ -1937,9 +1965,9 @@
         firstParameter = false;
       } else if (!optional(TokenType.COMMA)) {
         if (getEndToken(leftParenthesis) != null) {
-          reportError9(ParserErrorCode.EXPECTED_TOKEN, [TokenType.COMMA.lexeme]);
+          reportError10(ParserErrorCode.EXPECTED_TOKEN, [TokenType.COMMA.lexeme]);
         } else {
-          reportError10(ParserErrorCode.MISSING_CLOSING_PARENTHESIS, _currentToken.previous, []);
+          reportError11(ParserErrorCode.MISSING_CLOSING_PARENTHESIS, _currentToken.previous, []);
           break;
         }
       }
@@ -1947,11 +1975,11 @@
       if (matches5(TokenType.OPEN_SQUARE_BRACKET)) {
         wasOptionalParameter = true;
         if (leftSquareBracket != null && !reportedMuliplePositionalGroups) {
-          reportError9(ParserErrorCode.MULTIPLE_POSITIONAL_PARAMETER_GROUPS, []);
+          reportError10(ParserErrorCode.MULTIPLE_POSITIONAL_PARAMETER_GROUPS, []);
           reportedMuliplePositionalGroups = true;
         }
         if (leftCurlyBracket != null && !reportedMixedGroups) {
-          reportError9(ParserErrorCode.MIXED_PARAMETER_GROUPS, []);
+          reportError10(ParserErrorCode.MIXED_PARAMETER_GROUPS, []);
           reportedMixedGroups = true;
         }
         leftSquareBracket = andAdvance;
@@ -1960,11 +1988,11 @@
       } else if (matches5(TokenType.OPEN_CURLY_BRACKET)) {
         wasOptionalParameter = true;
         if (leftCurlyBracket != null && !reportedMulipleNamedGroups) {
-          reportError9(ParserErrorCode.MULTIPLE_NAMED_PARAMETER_GROUPS, []);
+          reportError10(ParserErrorCode.MULTIPLE_NAMED_PARAMETER_GROUPS, []);
           reportedMulipleNamedGroups = true;
         }
         if (leftSquareBracket != null && !reportedMixedGroups) {
-          reportError9(ParserErrorCode.MIXED_PARAMETER_GROUPS, []);
+          reportError10(ParserErrorCode.MIXED_PARAMETER_GROUPS, []);
           reportedMixedGroups = true;
         }
         leftCurlyBracket = andAdvance;
@@ -1975,18 +2003,18 @@
       parameters.add(parameter);
       currentParameters.add(parameter);
       if (identical(kind, ParameterKind.REQUIRED) && wasOptionalParameter) {
-        reportError(ParserErrorCode.NORMAL_BEFORE_OPTIONAL_PARAMETERS, parameter, []);
+        reportError9(ParserErrorCode.NORMAL_BEFORE_OPTIONAL_PARAMETERS, parameter, []);
       }
       if (matches5(TokenType.CLOSE_SQUARE_BRACKET)) {
         rightSquareBracket = andAdvance;
         currentParameters = normalParameters;
         if (leftSquareBracket == null) {
           if (leftCurlyBracket != null) {
-            reportError9(ParserErrorCode.WRONG_TERMINATOR_FOR_PARAMETER_GROUP, ["}"]);
+            reportError10(ParserErrorCode.WRONG_TERMINATOR_FOR_PARAMETER_GROUP, ["}"]);
             rightCurlyBracket = rightSquareBracket;
             rightSquareBracket = null;
           } else {
-            reportError9(ParserErrorCode.UNEXPECTED_TERMINATOR_FOR_PARAMETER_GROUP, ["["]);
+            reportError10(ParserErrorCode.UNEXPECTED_TERMINATOR_FOR_PARAMETER_GROUP, ["["]);
           }
         }
         kind = ParameterKind.REQUIRED;
@@ -1995,11 +2023,11 @@
         currentParameters = normalParameters;
         if (leftCurlyBracket == null) {
           if (leftSquareBracket != null) {
-            reportError9(ParserErrorCode.WRONG_TERMINATOR_FOR_PARAMETER_GROUP, ["]"]);
+            reportError10(ParserErrorCode.WRONG_TERMINATOR_FOR_PARAMETER_GROUP, ["]"]);
             rightSquareBracket = rightCurlyBracket;
             rightCurlyBracket = null;
           } else {
-            reportError9(ParserErrorCode.UNEXPECTED_TERMINATOR_FOR_PARAMETER_GROUP, ["{"]);
+            reportError10(ParserErrorCode.UNEXPECTED_TERMINATOR_FOR_PARAMETER_GROUP, ["{"]);
           }
         }
         kind = ParameterKind.REQUIRED;
@@ -2007,10 +2035,10 @@
     } while (!matches5(TokenType.CLOSE_PAREN) && initialToken != _currentToken);
     Token rightParenthesis = expect2(TokenType.CLOSE_PAREN);
     if (leftSquareBracket != null && rightSquareBracket == null) {
-      reportError9(ParserErrorCode.MISSING_TERMINATOR_FOR_PARAMETER_GROUP, ["]"]);
+      reportError10(ParserErrorCode.MISSING_TERMINATOR_FOR_PARAMETER_GROUP, ["]"]);
     }
     if (leftCurlyBracket != null && rightCurlyBracket == null) {
-      reportError9(ParserErrorCode.MISSING_TERMINATOR_FOR_PARAMETER_GROUP, ["}"]);
+      reportError10(ParserErrorCode.MISSING_TERMINATOR_FOR_PARAMETER_GROUP, ["}"]);
     }
     if (leftSquareBracket == null) {
       leftSquareBracket = leftCurlyBracket;
@@ -2018,7 +2046,7 @@
     if (rightSquareBracket == null) {
       rightSquareBracket = rightCurlyBracket;
     }
-    return new FormalParameterList.full(leftParenthesis, parameters, leftSquareBracket, rightSquareBracket, rightParenthesis);
+    return new FormalParameterList(leftParenthesis, parameters, leftSquareBracket, rightSquareBracket, rightParenthesis);
   }
 
   /**
@@ -2035,7 +2063,7 @@
     FormalParameterList parameters = parseFormalParameterList();
     validateFormalParameterList(parameters);
     FunctionBody body = parseFunctionBody(false, ParserErrorCode.MISSING_FUNCTION_BODY, true);
-    return new FunctionExpression.full(parameters, body);
+    return new FunctionExpression(parameters, body);
   }
 
   /**
@@ -2055,7 +2083,7 @@
     while (optional(TokenType.COMMA)) {
       interfaces.add(parseTypeName());
     }
-    return new ImplementsClause.full(keyword, interfaces);
+    return new ImplementsClause(keyword, interfaces);
   }
 
   /**
@@ -2071,7 +2099,7 @@
   Label parseLabel() {
     SimpleIdentifier label = parseSimpleIdentifier();
     Token colon = expect2(TokenType.COLON);
-    return new Label.full(label, colon);
+    return new Label(label, colon);
   }
 
   /**
@@ -2091,7 +2119,7 @@
       advance();
       components.add(parseSimpleIdentifier());
     }
-    return new LibraryIdentifier.full(components);
+    return new LibraryIdentifier(components);
   }
 
   /**
@@ -2108,7 +2136,7 @@
     Expression expression = parseLogicalAndExpression();
     while (matches5(TokenType.BAR_BAR)) {
       Token operator = andAdvance;
-      expression = new BinaryExpression.full(expression, operator, parseLogicalAndExpression());
+      expression = new BinaryExpression(expression, operator, parseLogicalAndExpression());
     }
     return expression;
   }
@@ -2127,7 +2155,7 @@
     Expression key = parseExpression2();
     Token separator = expect2(TokenType.COLON);
     Expression value = parseExpression2();
-    return new MapLiteralEntry.full(key, separator, value);
+    return new MapLiteralEntry(key, separator, value);
   }
 
   /**
@@ -2166,25 +2194,25 @@
       FormalParameterList parameters = parseFormalParameterList();
       if (thisKeyword == null) {
         if (holder.keyword != null) {
-          reportError10(ParserErrorCode.FUNCTION_TYPED_PARAMETER_VAR, holder.keyword, []);
+          reportError11(ParserErrorCode.FUNCTION_TYPED_PARAMETER_VAR, holder.keyword, []);
         }
-        return new FunctionTypedFormalParameter.full(commentAndMetadata.comment, commentAndMetadata.metadata, holder.type, identifier, parameters);
+        return new FunctionTypedFormalParameter(commentAndMetadata.comment, commentAndMetadata.metadata, holder.type, identifier, parameters);
       } else {
-        return new FieldFormalParameter.full(commentAndMetadata.comment, commentAndMetadata.metadata, holder.keyword, holder.type, thisKeyword, period, identifier, parameters);
+        return new FieldFormalParameter(commentAndMetadata.comment, commentAndMetadata.metadata, holder.keyword, holder.type, thisKeyword, period, identifier, parameters);
       }
     }
     TypeName type = holder.type;
     if (type != null) {
       if (matches3(type.name.beginToken, Keyword.VOID)) {
-        reportError10(ParserErrorCode.VOID_PARAMETER, type.name.beginToken, []);
+        reportError11(ParserErrorCode.VOID_PARAMETER, type.name.beginToken, []);
       } else if (holder.keyword != null && matches3(holder.keyword, Keyword.VAR)) {
-        reportError10(ParserErrorCode.VAR_AND_TYPE, holder.keyword, []);
+        reportError11(ParserErrorCode.VAR_AND_TYPE, holder.keyword, []);
       }
     }
     if (thisKeyword != null) {
-      return new FieldFormalParameter.full(commentAndMetadata.comment, commentAndMetadata.metadata, holder.keyword, holder.type, thisKeyword, period, identifier, null);
+      return new FieldFormalParameter(commentAndMetadata.comment, commentAndMetadata.metadata, holder.keyword, holder.type, thisKeyword, period, identifier, null);
     }
-    return new SimpleFormalParameter.full(commentAndMetadata.comment, commentAndMetadata.metadata, holder.keyword, holder.type, identifier);
+    return new SimpleFormalParameter(commentAndMetadata.comment, commentAndMetadata.metadata, holder.keyword, holder.type, identifier);
   }
 
   /**
@@ -2204,7 +2232,7 @@
     }
     Token period = andAdvance;
     SimpleIdentifier qualified = parseSimpleIdentifier();
-    return new PrefixedIdentifier.full(qualifier, period, qualified);
+    return new PrefixedIdentifier(qualifier, period, qualified);
   }
 
   /**
@@ -2220,7 +2248,7 @@
    */
   TypeName parseReturnType() {
     if (matches(Keyword.VOID)) {
-      return new TypeName.full(new SimpleIdentifier.full(andAdvance), null);
+      return new TypeName(new SimpleIdentifier(andAdvance), null);
     } else {
       return parseTypeName();
     }
@@ -2238,9 +2266,9 @@
    */
   SimpleIdentifier parseSimpleIdentifier() {
     if (matchesIdentifier()) {
-      return new SimpleIdentifier.full(andAdvance);
+      return new SimpleIdentifier(andAdvance);
     }
-    reportError9(ParserErrorCode.MISSING_IDENTIFIER, []);
+    reportError10(ParserErrorCode.MISSING_IDENTIFIER, []);
     return createSyntheticIdentifier();
   }
 
@@ -2263,7 +2291,7 @@
     if (labels.isEmpty) {
       return statement;
     }
-    return new LabeledStatement.full(labels, statement);
+    return new LabeledStatement(labels, statement);
   }
 
   /**
@@ -2284,16 +2312,16 @@
       if (matches5(TokenType.STRING_INTERPOLATION_EXPRESSION) || matches5(TokenType.STRING_INTERPOLATION_IDENTIFIER)) {
         strings.add(parseStringInterpolation(string));
       } else {
-        strings.add(new SimpleStringLiteral.full(string, computeStringValue(string.lexeme, true, true)));
+        strings.add(new SimpleStringLiteral(string, computeStringValue(string.lexeme, true, true)));
       }
     }
     if (strings.length < 1) {
-      reportError9(ParserErrorCode.EXPECTED_STRING_LITERAL, []);
+      reportError10(ParserErrorCode.EXPECTED_STRING_LITERAL, []);
       return createSyntheticStringLiteral();
     } else if (strings.length == 1) {
       return strings[0];
     } else {
-      return new AdjacentStrings.full(strings);
+      return new AdjacentStrings(strings);
     }
   }
 
@@ -2318,7 +2346,7 @@
       arguments.add(parseTypeName());
     }
     Token rightBracket = expect2(TokenType.GT);
-    return new TypeArgumentList.full(leftBracket, arguments, rightBracket);
+    return new TypeArgumentList(leftBracket, arguments, rightBracket);
   }
 
   /**
@@ -2334,19 +2362,19 @@
   TypeName parseTypeName() {
     Identifier typeName;
     if (matches(Keyword.VAR)) {
-      reportError9(ParserErrorCode.VAR_AS_TYPE_NAME, []);
-      typeName = new SimpleIdentifier.full(andAdvance);
+      reportError10(ParserErrorCode.VAR_AS_TYPE_NAME, []);
+      typeName = new SimpleIdentifier(andAdvance);
     } else if (matchesIdentifier()) {
       typeName = parsePrefixedIdentifier();
     } else {
       typeName = createSyntheticIdentifier();
-      reportError9(ParserErrorCode.EXPECTED_TYPE_NAME, []);
+      reportError10(ParserErrorCode.EXPECTED_TYPE_NAME, []);
     }
     TypeArgumentList typeArguments = null;
     if (matches5(TokenType.LT)) {
       typeArguments = parseTypeArgumentList();
     }
-    return new TypeName.full(typeName, typeArguments);
+    return new TypeName(typeName, typeArguments);
   }
 
   /**
@@ -2365,9 +2393,9 @@
     if (matches(Keyword.EXTENDS)) {
       Token keyword = andAdvance;
       TypeName bound = parseTypeName();
-      return new TypeParameter.full(commentAndMetadata.comment, commentAndMetadata.metadata, name, keyword, bound);
+      return new TypeParameter(commentAndMetadata.comment, commentAndMetadata.metadata, name, keyword, bound);
     }
-    return new TypeParameter.full(commentAndMetadata.comment, commentAndMetadata.metadata, name, null, null);
+    return new TypeParameter(commentAndMetadata.comment, commentAndMetadata.metadata, name, null, null);
   }
 
   /**
@@ -2388,7 +2416,7 @@
       typeParameters.add(parseTypeParameter());
     }
     Token rightBracket = expect2(TokenType.GT);
-    return new TypeParameterList.full(leftBracket, typeParameters, rightBracket);
+    return new TypeParameterList(leftBracket, typeParameters, rightBracket);
   }
 
   /**
@@ -2408,7 +2436,7 @@
     while (optional(TokenType.COMMA)) {
       types.add(parseTypeName());
     }
-    return new WithClause.full(with2, types);
+    return new WithClause(with2, types);
   }
 
   void set currentToken(Token currentToken) {
@@ -2435,7 +2463,7 @@
    */
   void appendScalarValue(JavaStringBuilder builder, String escapeSequence, int scalarValue, int startIndex, int endIndex) {
     if (scalarValue < 0 || scalarValue > Character.MAX_CODE_POINT || (scalarValue >= 0xD800 && scalarValue <= 0xDFFF)) {
-      reportError9(ParserErrorCode.INVALID_CODE_POINT, [escapeSequence]);
+      reportError10(ParserErrorCode.INVALID_CODE_POINT, [escapeSequence]);
       return;
     }
     if (scalarValue < Character.MAX_VALUE) {
@@ -2499,7 +2527,7 @@
    * @return the function declaration that most closely captures the components of the given method
    *         declaration
    */
-  FunctionDeclaration convertToFunctionDeclaration(MethodDeclaration method) => new FunctionDeclaration.full(method.documentationComment, method.metadata, method.externalKeyword, method.returnType, method.propertyKeyword, method.name, new FunctionExpression.full(method.parameters, method.body));
+  FunctionDeclaration convertToFunctionDeclaration(MethodDeclaration method) => new FunctionDeclaration(method.documentationComment, method.metadata, method.externalKeyword, method.returnType, method.propertyKeyword, method.name, new FunctionExpression(method.parameters, method.body));
 
   /**
    * Return `true` if the current token could be the start of a compilation unit member. This
@@ -2544,7 +2572,7 @@
     } else {
       syntheticToken = createSyntheticToken2(TokenType.IDENTIFIER);
     }
-    return new SimpleIdentifier.full(syntheticToken);
+    return new SimpleIdentifier(syntheticToken);
   }
 
   /**
@@ -2552,7 +2580,7 @@
    *
    * @return the synthetic string literal that was created
    */
-  SimpleStringLiteral createSyntheticStringLiteral() => new SimpleStringLiteral.full(createSyntheticToken2(TokenType.STRING), "");
+  SimpleStringLiteral createSyntheticStringLiteral() => new SimpleStringLiteral(createSyntheticToken2(TokenType.STRING), "");
 
   /**
    * Create a synthetic token representing the given keyword.
@@ -2586,7 +2614,7 @@
    */
   void ensureAssignable(Expression expression) {
     if (expression != null && !expression.isAssignable) {
-      reportError9(ParserErrorCode.ILLEGAL_ASSIGNMENT_TO_NON_ASSIGNABLE, []);
+      reportError10(ParserErrorCode.ILLEGAL_ASSIGNMENT_TO_NON_ASSIGNABLE, []);
     }
   }
 
@@ -2601,7 +2629,7 @@
     if (matches(keyword)) {
       return andAdvance;
     }
-    reportError9(ParserErrorCode.EXPECTED_TOKEN, [keyword.syntax]);
+    reportError10(ParserErrorCode.EXPECTED_TOKEN, [keyword.syntax]);
     return _currentToken;
   }
 
@@ -2617,9 +2645,9 @@
       return andAdvance;
     }
     if (identical(type, TokenType.SEMICOLON)) {
-      reportError10(ParserErrorCode.EXPECTED_TOKEN, _currentToken.previous, [type.lexeme]);
+      reportError11(ParserErrorCode.EXPECTED_TOKEN, _currentToken.previous, [type.lexeme]);
     } else {
-      reportError9(ParserErrorCode.EXPECTED_TOKEN, [type.lexeme]);
+      reportError10(ParserErrorCode.EXPECTED_TOKEN, [type.lexeme]);
     }
     return _currentToken;
   }
@@ -2962,6 +2990,14 @@
   }
 
   /**
+   * Increments the error reporting lock level. If level is more than `0`, then
+   * [reportError] wont report any error.
+   */
+  void lockErrorListener() {
+    _errorListenerLock++;
+  }
+
+  /**
    * Return `true` if the current token matches the given keyword.
    *
    * @param keyword the keyword that can optionally appear in the current location
@@ -3106,13 +3142,13 @@
   Expression parseAdditiveExpression() {
     Expression expression;
     if (matches(Keyword.SUPER) && _currentToken.next.type.isAdditiveOperator) {
-      expression = new SuperExpression.full(andAdvance);
+      expression = new SuperExpression(andAdvance);
     } else {
       expression = parseMultiplicativeExpression();
     }
     while (_currentToken.type.isAdditiveOperator) {
       Token operator = andAdvance;
-      expression = new BinaryExpression.full(expression, operator, parseMultiplicativeExpression());
+      expression = new BinaryExpression(expression, operator, parseMultiplicativeExpression());
     }
     return expression;
   }
@@ -3130,8 +3166,8 @@
   ArgumentDefinitionTest parseArgumentDefinitionTest() {
     Token question = expect2(TokenType.QUESTION);
     SimpleIdentifier identifier = parseSimpleIdentifier();
-    reportError10(ParserErrorCode.DEPRECATED_ARGUMENT_DEFINITION_TEST, question, []);
-    return new ArgumentDefinitionTest.full(question, identifier);
+    reportError11(ParserErrorCode.DEPRECATED_ARGUMENT_DEFINITION_TEST, question, []);
+    return new ArgumentDefinitionTest(question, identifier);
   }
 
   /**
@@ -3149,17 +3185,17 @@
     Token leftParen = expect2(TokenType.OPEN_PAREN);
     Expression expression = parseExpression2();
     if (expression is AssignmentExpression) {
-      reportError(ParserErrorCode.ASSERT_DOES_NOT_TAKE_ASSIGNMENT, expression, []);
+      reportError9(ParserErrorCode.ASSERT_DOES_NOT_TAKE_ASSIGNMENT, expression, []);
     } else if (expression is CascadeExpression) {
-      reportError(ParserErrorCode.ASSERT_DOES_NOT_TAKE_CASCADE, expression, []);
+      reportError9(ParserErrorCode.ASSERT_DOES_NOT_TAKE_CASCADE, expression, []);
     } else if (expression is ThrowExpression) {
-      reportError(ParserErrorCode.ASSERT_DOES_NOT_TAKE_THROW, expression, []);
+      reportError9(ParserErrorCode.ASSERT_DOES_NOT_TAKE_THROW, expression, []);
     } else if (expression is RethrowExpression) {
-      reportError(ParserErrorCode.ASSERT_DOES_NOT_TAKE_RETHROW, expression, []);
+      reportError9(ParserErrorCode.ASSERT_DOES_NOT_TAKE_RETHROW, expression, []);
     }
     Token rightParen = expect2(TokenType.CLOSE_PAREN);
     Token semicolon = expect2(TokenType.SEMICOLON);
-    return new AssertStatement.full(keyword, leftParen, expression, rightParen, semicolon);
+    return new AssertStatement(keyword, leftParen, expression, rightParen, semicolon);
   }
 
   /**
@@ -3178,7 +3214,7 @@
    */
   Expression parseAssignableExpression(bool primaryAllowed) {
     if (matches(Keyword.SUPER)) {
-      return parseAssignableSelector(new SuperExpression.full(andAdvance), false);
+      return parseAssignableSelector(new SuperExpression(andAdvance), false);
     }
     Expression expression = parsePrimaryExpression();
     bool isOptional = primaryAllowed || expression is SimpleIdentifier;
@@ -3186,15 +3222,15 @@
       while (matches5(TokenType.OPEN_PAREN)) {
         ArgumentList argumentList = parseArgumentList();
         if (expression is SimpleIdentifier) {
-          expression = new MethodInvocation.full(null, null, expression as SimpleIdentifier, argumentList);
+          expression = new MethodInvocation(null, null, expression as SimpleIdentifier, argumentList);
         } else if (expression is PrefixedIdentifier) {
           PrefixedIdentifier identifier = expression as PrefixedIdentifier;
-          expression = new MethodInvocation.full(identifier.prefix, identifier.period, identifier.identifier, argumentList);
+          expression = new MethodInvocation(identifier.prefix, identifier.period, identifier.identifier, argumentList);
         } else if (expression is PropertyAccess) {
           PropertyAccess access = expression as PropertyAccess;
-          expression = new MethodInvocation.full(access.target, access.operator, access.propertyName, argumentList);
+          expression = new MethodInvocation(access.target, access.operator, access.propertyName, argumentList);
         } else {
-          expression = new FunctionExpressionInvocation.full(expression, argumentList);
+          expression = new FunctionExpressionInvocation(expression, argumentList);
         }
         if (!primaryAllowed) {
           isOptional = false;
@@ -3204,7 +3240,7 @@
       if (identical(selectorExpression, expression)) {
         if (!isOptional && (expression is PrefixedIdentifier)) {
           PrefixedIdentifier identifier = expression as PrefixedIdentifier;
-          expression = new PropertyAccess.full(identifier.prefix, identifier.period, identifier.identifier);
+          expression = new PropertyAccess(identifier.prefix, identifier.period, identifier.identifier);
         }
         return expression;
       }
@@ -3231,13 +3267,13 @@
       Token leftBracket = andAdvance;
       Expression index = parseExpression2();
       Token rightBracket = expect2(TokenType.CLOSE_SQUARE_BRACKET);
-      return new IndexExpression.forTarget_full(prefix, leftBracket, index, rightBracket);
+      return new IndexExpression.forTarget(prefix, leftBracket, index, rightBracket);
     } else if (matches5(TokenType.PERIOD)) {
       Token period = andAdvance;
-      return new PropertyAccess.full(prefix, period, parseSimpleIdentifier());
+      return new PropertyAccess(prefix, period, parseSimpleIdentifier());
     } else {
       if (!optional) {
-        reportError9(ParserErrorCode.MISSING_ASSIGNABLE_SELECTOR, []);
+        reportError10(ParserErrorCode.MISSING_ASSIGNABLE_SELECTOR, []);
       }
       return prefix;
     }
@@ -3257,13 +3293,13 @@
   Expression parseBitwiseAndExpression() {
     Expression expression;
     if (matches(Keyword.SUPER) && matches4(peek(), TokenType.AMPERSAND)) {
-      expression = new SuperExpression.full(andAdvance);
+      expression = new SuperExpression(andAdvance);
     } else {
       expression = parseShiftExpression();
     }
     while (matches5(TokenType.AMPERSAND)) {
       Token operator = andAdvance;
-      expression = new BinaryExpression.full(expression, operator, parseShiftExpression());
+      expression = new BinaryExpression(expression, operator, parseShiftExpression());
     }
     return expression;
   }
@@ -3282,13 +3318,13 @@
   Expression parseBitwiseXorExpression() {
     Expression expression;
     if (matches(Keyword.SUPER) && matches4(peek(), TokenType.CARET)) {
-      expression = new SuperExpression.full(andAdvance);
+      expression = new SuperExpression(andAdvance);
     } else {
       expression = parseBitwiseAndExpression();
     }
     while (matches5(TokenType.CARET)) {
       Token operator = andAdvance;
-      expression = new BinaryExpression.full(expression, operator, parseBitwiseAndExpression());
+      expression = new BinaryExpression(expression, operator, parseBitwiseAndExpression());
     }
     return expression;
   }
@@ -3310,10 +3346,10 @@
       label = parseSimpleIdentifier();
     }
     if (!_inLoop && !_inSwitch && label == null) {
-      reportError10(ParserErrorCode.BREAK_OUTSIDE_OF_LOOP, breakKeyword, []);
+      reportError11(ParserErrorCode.BREAK_OUTSIDE_OF_LOOP, breakKeyword, []);
     }
     Token semicolon = expect2(TokenType.SEMICOLON);
-    return new BreakStatement.full(breakKeyword, label, semicolon);
+    return new BreakStatement(breakKeyword, label, semicolon);
   }
 
   /**
@@ -3343,26 +3379,26 @@
       Token leftBracket = andAdvance;
       Expression index = parseExpression2();
       Token rightBracket = expect2(TokenType.CLOSE_SQUARE_BRACKET);
-      expression = new IndexExpression.forCascade_full(period, leftBracket, index, rightBracket);
+      expression = new IndexExpression.forCascade(period, leftBracket, index, rightBracket);
       period = null;
     } else {
-      reportError10(ParserErrorCode.MISSING_IDENTIFIER, _currentToken, [_currentToken.lexeme]);
+      reportError11(ParserErrorCode.MISSING_IDENTIFIER, _currentToken, [_currentToken.lexeme]);
       functionName = createSyntheticIdentifier();
     }
     if (identical(_currentToken.type, TokenType.OPEN_PAREN)) {
       while (identical(_currentToken.type, TokenType.OPEN_PAREN)) {
         if (functionName != null) {
-          expression = new MethodInvocation.full(expression, period, functionName, parseArgumentList());
+          expression = new MethodInvocation(expression, period, functionName, parseArgumentList());
           period = null;
           functionName = null;
         } else if (expression == null) {
-          expression = new MethodInvocation.full(expression, period, createSyntheticIdentifier(), parseArgumentList());
+          expression = new MethodInvocation(expression, period, createSyntheticIdentifier(), parseArgumentList());
         } else {
-          expression = new FunctionExpressionInvocation.full(expression, parseArgumentList());
+          expression = new FunctionExpressionInvocation(expression, parseArgumentList());
         }
       }
     } else if (functionName != null) {
-      expression = new PropertyAccess.full(expression, period, functionName);
+      expression = new PropertyAccess(expression, period, functionName);
       period = null;
     }
     bool progress = true;
@@ -3375,9 +3411,9 @@
         while (identical(_currentToken.type, TokenType.OPEN_PAREN)) {
           if (expression is PropertyAccess) {
             PropertyAccess propertyAccess = expression as PropertyAccess;
-            expression = new MethodInvocation.full(propertyAccess.target, propertyAccess.operator, propertyAccess.propertyName, parseArgumentList());
+            expression = new MethodInvocation(propertyAccess.target, propertyAccess.operator, propertyAccess.propertyName, parseArgumentList());
           } else {
-            expression = new FunctionExpressionInvocation.full(expression, parseArgumentList());
+            expression = new FunctionExpressionInvocation(expression, parseArgumentList());
           }
         }
       }
@@ -3385,7 +3421,7 @@
     if (_currentToken.type.isAssignmentOperator) {
       Token operator = andAdvance;
       ensureAssignable(expression);
-      expression = new AssignmentExpression.full(expression, operator, parseExpressionWithoutCascade());
+      expression = new AssignmentExpression(expression, operator, parseExpressionWithoutCascade());
     }
     return expression;
   }
@@ -3432,29 +3468,29 @@
         if (extendsClause == null) {
           extendsClause = parseExtendsClause();
           if (withClause != null) {
-            reportError10(ParserErrorCode.WITH_BEFORE_EXTENDS, withClause.withKeyword, []);
+            reportError11(ParserErrorCode.WITH_BEFORE_EXTENDS, withClause.withKeyword, []);
           } else if (implementsClause != null) {
-            reportError10(ParserErrorCode.IMPLEMENTS_BEFORE_EXTENDS, implementsClause.keyword, []);
+            reportError11(ParserErrorCode.IMPLEMENTS_BEFORE_EXTENDS, implementsClause.keyword, []);
           }
         } else {
-          reportError10(ParserErrorCode.MULTIPLE_EXTENDS_CLAUSES, extendsClause.keyword, []);
+          reportError11(ParserErrorCode.MULTIPLE_EXTENDS_CLAUSES, extendsClause.keyword, []);
           parseExtendsClause();
         }
       } else if (matches(Keyword.WITH)) {
         if (withClause == null) {
           withClause = parseWithClause();
           if (implementsClause != null) {
-            reportError10(ParserErrorCode.IMPLEMENTS_BEFORE_WITH, implementsClause.keyword, []);
+            reportError11(ParserErrorCode.IMPLEMENTS_BEFORE_WITH, implementsClause.keyword, []);
           }
         } else {
-          reportError10(ParserErrorCode.MULTIPLE_WITH_CLAUSES, withClause.withKeyword, []);
+          reportError11(ParserErrorCode.MULTIPLE_WITH_CLAUSES, withClause.withKeyword, []);
           parseWithClause();
         }
       } else if (matches(Keyword.IMPLEMENTS)) {
         if (implementsClause == null) {
           implementsClause = parseImplementsClause();
         } else {
-          reportError10(ParserErrorCode.MULTIPLE_IMPLEMENTS_CLAUSES, implementsClause.keyword, []);
+          reportError11(ParserErrorCode.MULTIPLE_IMPLEMENTS_CLAUSES, implementsClause.keyword, []);
           parseImplementsClause();
         }
       } else {
@@ -3462,7 +3498,7 @@
       }
     }
     if (withClause != null && extendsClause == null) {
-      reportError10(ParserErrorCode.WITH_WITHOUT_EXTENDS, withClause.withKeyword, []);
+      reportError11(ParserErrorCode.WITH_WITHOUT_EXTENDS, withClause.withKeyword, []);
     }
     NativeClause nativeClause = null;
     if (matches2(_NATIVE) && matches4(peek(), TokenType.STRING)) {
@@ -3478,9 +3514,9 @@
     } else {
       leftBracket = createSyntheticToken2(TokenType.OPEN_CURLY_BRACKET);
       rightBracket = createSyntheticToken2(TokenType.CLOSE_CURLY_BRACKET);
-      reportError9(ParserErrorCode.MISSING_CLASS_BODY, []);
+      reportError10(ParserErrorCode.MISSING_CLASS_BODY, []);
     }
-    ClassDeclaration classDeclaration = new ClassDeclaration.full(commentAndMetadata.comment, commentAndMetadata.metadata, abstractKeyword, keyword, name, typeParameters, extendsClause, withClause, implementsClause, leftBracket, members, rightBracket);
+    ClassDeclaration classDeclaration = new ClassDeclaration(commentAndMetadata.comment, commentAndMetadata.metadata, abstractKeyword, keyword, name, typeParameters, extendsClause, withClause, implementsClause, leftBracket, members, rightBracket);
     classDeclaration.nativeClause = nativeClause;
     return classDeclaration;
   }
@@ -3503,7 +3539,7 @@
     Token memberStart = _currentToken;
     while (!matches5(TokenType.EOF) && !matches5(TokenType.CLOSE_CURLY_BRACKET) && (closingBracket != null || (!matches(Keyword.CLASS) && !matches(Keyword.TYPEDEF)))) {
       if (matches5(TokenType.SEMICOLON)) {
-        reportError10(ParserErrorCode.UNEXPECTED_TOKEN, _currentToken, [_currentToken.lexeme]);
+        reportError11(ParserErrorCode.UNEXPECTED_TOKEN, _currentToken, [_currentToken.lexeme]);
         advance();
       } else {
         ClassMember member = parseClassMember(className);
@@ -3512,7 +3548,7 @@
         }
       }
       if (identical(_currentToken, memberStart)) {
-        reportError10(ParserErrorCode.UNEXPECTED_TOKEN, _currentToken, [_currentToken.lexeme]);
+        reportError11(ParserErrorCode.UNEXPECTED_TOKEN, _currentToken, [_currentToken.lexeme]);
         advance();
       }
       memberStart = _currentToken;
@@ -3560,16 +3596,16 @@
       semicolon = andAdvance;
     } else {
       if (matches5(TokenType.OPEN_CURLY_BRACKET)) {
-        reportError9(ParserErrorCode.EXPECTED_TOKEN, [TokenType.SEMICOLON.lexeme]);
+        reportError10(ParserErrorCode.EXPECTED_TOKEN, [TokenType.SEMICOLON.lexeme]);
         Token leftBracket = andAdvance;
         parseClassMembers(className.name, getEndToken(leftBracket));
         expect2(TokenType.CLOSE_CURLY_BRACKET);
       } else {
-        reportError10(ParserErrorCode.EXPECTED_TOKEN, _currentToken.previous, [TokenType.SEMICOLON.lexeme]);
+        reportError11(ParserErrorCode.EXPECTED_TOKEN, _currentToken.previous, [TokenType.SEMICOLON.lexeme]);
       }
       semicolon = createSyntheticToken2(TokenType.SEMICOLON);
     }
-    return new ClassTypeAlias.full(commentAndMetadata.comment, commentAndMetadata.metadata, keyword, className, typeParameters, equals, abstractKeyword, superclass, withClause, implementsClause, semicolon);
+    return new ClassTypeAlias(commentAndMetadata.comment, commentAndMetadata.metadata, keyword, className, typeParameters, equals, abstractKeyword, superclass, withClause, implementsClause, semicolon);
   }
 
   /**
@@ -3589,10 +3625,10 @@
       Token keyword = expect2(TokenType.IDENTIFIER);
       if (keyword.lexeme == _SHOW) {
         List<SimpleIdentifier> shownNames = parseIdentifierList();
-        combinators.add(new ShowCombinator.full(keyword, shownNames));
+        combinators.add(new ShowCombinator(keyword, shownNames));
       } else {
         List<SimpleIdentifier> hiddenNames = parseIdentifierList();
-        combinators.add(new HideCombinator.full(keyword, hiddenNames));
+        combinators.add(new HideCombinator(keyword, hiddenNames));
       }
     }
     return combinators;
@@ -3659,16 +3695,16 @@
         Token nextToken;
         Identifier identifier;
         if (matches4(secondToken, TokenType.PERIOD) && matchesIdentifier2(thirdToken)) {
-          identifier = new PrefixedIdentifier.full(new SimpleIdentifier.full(firstToken), secondToken, new SimpleIdentifier.full(thirdToken));
+          identifier = new PrefixedIdentifier(new SimpleIdentifier(firstToken), secondToken, new SimpleIdentifier(thirdToken));
           nextToken = thirdToken.next;
         } else {
-          identifier = new SimpleIdentifier.full(firstToken);
+          identifier = new SimpleIdentifier(firstToken);
           nextToken = firstToken.next;
         }
         if (nextToken.type != TokenType.EOF) {
           return null;
         }
-        return new CommentReference.full(newKeyword, identifier);
+        return new CommentReference(newKeyword, identifier);
       } else if (matches3(firstToken, Keyword.THIS) || matches3(firstToken, Keyword.NULL) || matches3(firstToken, Keyword.TRUE) || matches3(firstToken, Keyword.FALSE)) {
         return null;
       }
@@ -3759,7 +3795,7 @@
         validateModifiersForTopLevelFunction(modifiers);
         return parseFunctionDeclaration(commentAndMetadata, modifiers.externalKeyword, null);
       } else if (matches(Keyword.OPERATOR) && isOperator(peek())) {
-        reportError10(ParserErrorCode.TOP_LEVEL_OPERATOR, _currentToken, []);
+        reportError11(ParserErrorCode.TOP_LEVEL_OPERATOR, _currentToken, []);
         return convertToFunctionDeclaration(parseOperator(commentAndMetadata, modifiers.externalKeyword, returnType));
       } else if (matchesIdentifier() && matchesAny(peek(), [
           TokenType.OPEN_PAREN,
@@ -3770,42 +3806,42 @@
       } else {
         if (matchesIdentifier()) {
           if (matchesAny(peek(), [TokenType.EQ, TokenType.COMMA, TokenType.SEMICOLON])) {
-            reportError(ParserErrorCode.VOID_VARIABLE, returnType, []);
-            return new TopLevelVariableDeclaration.full(commentAndMetadata.comment, commentAndMetadata.metadata, parseVariableDeclarationList2(null, validateModifiersForTopLevelVariable(modifiers), null), expect2(TokenType.SEMICOLON));
+            reportError9(ParserErrorCode.VOID_VARIABLE, returnType, []);
+            return new TopLevelVariableDeclaration(commentAndMetadata.comment, commentAndMetadata.metadata, parseVariableDeclarationList2(null, validateModifiersForTopLevelVariable(modifiers), null), expect2(TokenType.SEMICOLON));
           }
         }
-        reportError10(ParserErrorCode.EXPECTED_EXECUTABLE, _currentToken, []);
+        reportError11(ParserErrorCode.EXPECTED_EXECUTABLE, _currentToken, []);
         return null;
       }
     } else if ((matches(Keyword.GET) || matches(Keyword.SET)) && matchesIdentifier2(peek())) {
       validateModifiersForTopLevelFunction(modifiers);
       return parseFunctionDeclaration(commentAndMetadata, modifiers.externalKeyword, null);
     } else if (matches(Keyword.OPERATOR) && isOperator(peek())) {
-      reportError10(ParserErrorCode.TOP_LEVEL_OPERATOR, _currentToken, []);
+      reportError11(ParserErrorCode.TOP_LEVEL_OPERATOR, _currentToken, []);
       return convertToFunctionDeclaration(parseOperator(commentAndMetadata, modifiers.externalKeyword, null));
     } else if (!matchesIdentifier()) {
-      reportError10(ParserErrorCode.EXPECTED_EXECUTABLE, _currentToken, []);
+      reportError11(ParserErrorCode.EXPECTED_EXECUTABLE, _currentToken, []);
       return null;
     } else if (matches4(peek(), TokenType.OPEN_PAREN)) {
       validateModifiersForTopLevelFunction(modifiers);
       return parseFunctionDeclaration(commentAndMetadata, modifiers.externalKeyword, null);
     } else if (matchesAny(peek(), [TokenType.EQ, TokenType.COMMA, TokenType.SEMICOLON])) {
       if (modifiers.constKeyword == null && modifiers.finalKeyword == null && modifiers.varKeyword == null) {
-        reportError9(ParserErrorCode.MISSING_CONST_FINAL_VAR_OR_TYPE, []);
+        reportError10(ParserErrorCode.MISSING_CONST_FINAL_VAR_OR_TYPE, []);
       }
-      return new TopLevelVariableDeclaration.full(commentAndMetadata.comment, commentAndMetadata.metadata, parseVariableDeclarationList2(null, validateModifiersForTopLevelVariable(modifiers), null), expect2(TokenType.SEMICOLON));
+      return new TopLevelVariableDeclaration(commentAndMetadata.comment, commentAndMetadata.metadata, parseVariableDeclarationList2(null, validateModifiersForTopLevelVariable(modifiers), null), expect2(TokenType.SEMICOLON));
     }
     TypeName returnType = parseReturnType();
     if ((matches(Keyword.GET) || matches(Keyword.SET)) && matchesIdentifier2(peek())) {
       validateModifiersForTopLevelFunction(modifiers);
       return parseFunctionDeclaration(commentAndMetadata, modifiers.externalKeyword, returnType);
     } else if (matches(Keyword.OPERATOR) && isOperator(peek())) {
-      reportError10(ParserErrorCode.TOP_LEVEL_OPERATOR, _currentToken, []);
+      reportError11(ParserErrorCode.TOP_LEVEL_OPERATOR, _currentToken, []);
       return convertToFunctionDeclaration(parseOperator(commentAndMetadata, modifiers.externalKeyword, returnType));
     } else if (matches5(TokenType.AT)) {
-      return new TopLevelVariableDeclaration.full(commentAndMetadata.comment, commentAndMetadata.metadata, parseVariableDeclarationList2(null, validateModifiersForTopLevelVariable(modifiers), returnType), expect2(TokenType.SEMICOLON));
+      return new TopLevelVariableDeclaration(commentAndMetadata.comment, commentAndMetadata.metadata, parseVariableDeclarationList2(null, validateModifiersForTopLevelVariable(modifiers), returnType), expect2(TokenType.SEMICOLON));
     } else if (!matchesIdentifier()) {
-      reportError10(ParserErrorCode.EXPECTED_EXECUTABLE, _currentToken, []);
+      reportError11(ParserErrorCode.EXPECTED_EXECUTABLE, _currentToken, []);
       Token semicolon;
       if (matches5(TokenType.SEMICOLON)) {
         semicolon = andAdvance;
@@ -3813,8 +3849,8 @@
         semicolon = createSyntheticToken2(TokenType.SEMICOLON);
       }
       List<VariableDeclaration> variables = new List<VariableDeclaration>();
-      variables.add(new VariableDeclaration.full(null, null, createSyntheticIdentifier(), null, null));
-      return new TopLevelVariableDeclaration.full(commentAndMetadata.comment, commentAndMetadata.metadata, new VariableDeclarationList.full(null, null, null, returnType, variables), semicolon);
+      variables.add(new VariableDeclaration(null, null, createSyntheticIdentifier(), null, null));
+      return new TopLevelVariableDeclaration(commentAndMetadata.comment, commentAndMetadata.metadata, new VariableDeclarationList(null, null, null, returnType, variables), semicolon);
     }
     if (matchesAny(peek(), [
         TokenType.OPEN_PAREN,
@@ -3823,7 +3859,7 @@
       validateModifiersForTopLevelFunction(modifiers);
       return parseFunctionDeclaration(commentAndMetadata, modifiers.externalKeyword, returnType);
     }
-    return new TopLevelVariableDeclaration.full(commentAndMetadata.comment, commentAndMetadata.metadata, parseVariableDeclarationList2(null, validateModifiersForTopLevelVariable(modifiers), returnType), expect2(TokenType.SEMICOLON));
+    return new TopLevelVariableDeclaration(commentAndMetadata.comment, commentAndMetadata.metadata, parseVariableDeclarationList2(null, validateModifiersForTopLevelVariable(modifiers), returnType), expect2(TokenType.SEMICOLON));
   }
 
   /**
@@ -3880,27 +3916,27 @@
     if (matches5(TokenType.EQ)) {
       separator = andAdvance;
       redirectedConstructor = parseConstructorName();
-      body = new EmptyFunctionBody.full(expect2(TokenType.SEMICOLON));
+      body = new EmptyFunctionBody(expect2(TokenType.SEMICOLON));
       if (factoryKeyword == null) {
-        reportError(ParserErrorCode.REDIRECTION_IN_NON_FACTORY_CONSTRUCTOR, redirectedConstructor, []);
+        reportError9(ParserErrorCode.REDIRECTION_IN_NON_FACTORY_CONSTRUCTOR, redirectedConstructor, []);
       }
     } else {
       body = parseFunctionBody(true, ParserErrorCode.MISSING_FUNCTION_BODY, false);
       if (constKeyword != null && factoryKeyword != null && externalKeyword == null) {
-        reportError10(ParserErrorCode.CONST_FACTORY, factoryKeyword, []);
+        reportError11(ParserErrorCode.CONST_FACTORY, factoryKeyword, []);
       } else if (body is EmptyFunctionBody) {
         if (factoryKeyword != null && externalKeyword == null) {
-          reportError10(ParserErrorCode.FACTORY_WITHOUT_BODY, factoryKeyword, []);
+          reportError11(ParserErrorCode.FACTORY_WITHOUT_BODY, factoryKeyword, []);
         }
       } else {
         if (constKeyword != null) {
-          reportError(ParserErrorCode.CONST_CONSTRUCTOR_WITH_BODY, body, []);
+          reportError9(ParserErrorCode.CONST_CONSTRUCTOR_WITH_BODY, body, []);
         } else if (!bodyAllowed) {
-          reportError(ParserErrorCode.EXTERNAL_CONSTRUCTOR_WITH_BODY, body, []);
+          reportError9(ParserErrorCode.EXTERNAL_CONSTRUCTOR_WITH_BODY, body, []);
         }
       }
     }
-    return new ConstructorDeclaration.full(commentAndMetadata.comment, commentAndMetadata.metadata, externalKeyword, constKeyword, factoryKeyword, returnType, period, name, parameters, separator, initializers, redirectedConstructor, body);
+    return new ConstructorDeclaration(commentAndMetadata.comment, commentAndMetadata.metadata, externalKeyword, constKeyword, factoryKeyword, returnType, period, name, parameters, separator, initializers, redirectedConstructor, body);
   }
 
   /**
@@ -3933,9 +3969,9 @@
         }
         tokenType = _currentToken.type;
       }
-      expression = new CascadeExpression.full(expression, cascadeSections);
+      expression = new CascadeExpression(expression, cascadeSections);
     }
-    return new ConstructorFieldInitializer.full(keyword, period, fieldName, equals, expression);
+    return new ConstructorFieldInitializer(keyword, period, fieldName, equals, expression);
   }
 
   /**
@@ -3951,17 +3987,17 @@
   Statement parseContinueStatement() {
     Token continueKeyword = expect(Keyword.CONTINUE);
     if (!_inLoop && !_inSwitch) {
-      reportError10(ParserErrorCode.CONTINUE_OUTSIDE_OF_LOOP, continueKeyword, []);
+      reportError11(ParserErrorCode.CONTINUE_OUTSIDE_OF_LOOP, continueKeyword, []);
     }
     SimpleIdentifier label = null;
     if (matchesIdentifier()) {
       label = parseSimpleIdentifier();
     }
     if (_inSwitch && !_inLoop && label == null) {
-      reportError10(ParserErrorCode.CONTINUE_WITHOUT_LABEL_IN_CASE, continueKeyword, []);
+      reportError11(ParserErrorCode.CONTINUE_WITHOUT_LABEL_IN_CASE, continueKeyword, []);
     }
     Token semicolon = expect2(TokenType.SEMICOLON);
-    return new ContinueStatement.full(continueKeyword, label, semicolon);
+    return new ContinueStatement(continueKeyword, label, semicolon);
   }
 
   /**
@@ -4051,7 +4087,7 @@
       Expression condition = parseExpression2();
       Token rightParenthesis = expect2(TokenType.CLOSE_PAREN);
       Token semicolon = expect2(TokenType.SEMICOLON);
-      return new DoStatement.full(doKeyword, body, whileKeyword, leftParenthesis, condition, rightParenthesis, semicolon);
+      return new DoStatement(doKeyword, body, whileKeyword, leftParenthesis, condition, rightParenthesis, semicolon);
     } finally {
       _inLoop = wasInLoop;
     }
@@ -4067,7 +4103,7 @@
    *
    * @return the empty statement that was parsed
    */
-  Statement parseEmptyStatement() => new EmptyStatement.full(andAdvance);
+  Statement parseEmptyStatement() => new EmptyStatement(andAdvance);
 
   /**
    * Parse an equality expression.
@@ -4083,7 +4119,7 @@
   Expression parseEqualityExpression() {
     Expression expression;
     if (matches(Keyword.SUPER) && _currentToken.next.type.isEqualityOperator) {
-      expression = new SuperExpression.full(andAdvance);
+      expression = new SuperExpression(andAdvance);
     } else {
       expression = parseRelationalExpression();
     }
@@ -4091,9 +4127,9 @@
     while (_currentToken.type.isEqualityOperator) {
       Token operator = andAdvance;
       if (leftEqualityExpression) {
-        reportError(ParserErrorCode.EQUALITY_CANNOT_BE_EQUALITY_OPERAND, expression, []);
+        reportError9(ParserErrorCode.EQUALITY_CANNOT_BE_EQUALITY_OPERAND, expression, []);
       }
-      expression = new BinaryExpression.full(expression, operator, parseRelationalExpression());
+      expression = new BinaryExpression(expression, operator, parseRelationalExpression());
       leftEqualityExpression = true;
     }
     return expression;
@@ -4115,7 +4151,7 @@
     StringLiteral libraryUri = parseStringLiteral();
     List<Combinator> combinators = parseCombinators();
     Token semicolon = expect2(TokenType.SEMICOLON);
-    return new ExportDirective.full(commentAndMetadata.comment, commentAndMetadata.metadata, exportKeyword, libraryUri, combinators, semicolon);
+    return new ExportDirective(commentAndMetadata.comment, commentAndMetadata.metadata, exportKeyword, libraryUri, combinators, semicolon);
   }
 
   /**
@@ -4165,7 +4201,7 @@
       if (isTypedIdentifier(_currentToken)) {
         type = parseReturnType();
       } else if (!optional) {
-        reportError9(ParserErrorCode.MISSING_CONST_FINAL_VAR_OR_TYPE, []);
+        reportError10(ParserErrorCode.MISSING_CONST_FINAL_VAR_OR_TYPE, []);
       }
     }
     return new FinalConstVarOrType(keyword, type);
@@ -4193,22 +4229,22 @@
       Token seperator = andAdvance;
       Expression defaultValue = parseExpression2();
       if (identical(kind, ParameterKind.NAMED)) {
-        reportError10(ParserErrorCode.WRONG_SEPARATOR_FOR_NAMED_PARAMETER, seperator, []);
+        reportError11(ParserErrorCode.WRONG_SEPARATOR_FOR_NAMED_PARAMETER, seperator, []);
       } else if (identical(kind, ParameterKind.REQUIRED)) {
-        reportError(ParserErrorCode.POSITIONAL_PARAMETER_OUTSIDE_GROUP, parameter, []);
+        reportError9(ParserErrorCode.POSITIONAL_PARAMETER_OUTSIDE_GROUP, parameter, []);
       }
-      return new DefaultFormalParameter.full(parameter, kind, seperator, defaultValue);
+      return new DefaultFormalParameter(parameter, kind, seperator, defaultValue);
     } else if (matches5(TokenType.COLON)) {
       Token seperator = andAdvance;
       Expression defaultValue = parseExpression2();
       if (identical(kind, ParameterKind.POSITIONAL)) {
-        reportError10(ParserErrorCode.WRONG_SEPARATOR_FOR_POSITIONAL_PARAMETER, seperator, []);
+        reportError11(ParserErrorCode.WRONG_SEPARATOR_FOR_POSITIONAL_PARAMETER, seperator, []);
       } else if (identical(kind, ParameterKind.REQUIRED)) {
-        reportError(ParserErrorCode.NAMED_PARAMETER_OUTSIDE_GROUP, parameter, []);
+        reportError9(ParserErrorCode.NAMED_PARAMETER_OUTSIDE_GROUP, parameter, []);
       }
-      return new DefaultFormalParameter.full(parameter, kind, seperator, defaultValue);
+      return new DefaultFormalParameter(parameter, kind, seperator, defaultValue);
     } else if (kind != ParameterKind.REQUIRED) {
-      return new DefaultFormalParameter.full(parameter, kind, null, null);
+      return new DefaultFormalParameter(parameter, kind, null, null);
     }
     return parameter;
   }
@@ -4245,8 +4281,8 @@
         if (matchesIdentifier() && matches3(peek(), Keyword.IN)) {
           List<VariableDeclaration> variables = new List<VariableDeclaration>();
           SimpleIdentifier variableName = parseSimpleIdentifier();
-          variables.add(new VariableDeclaration.full(null, null, variableName, null, null));
-          variableList = new VariableDeclarationList.full(commentAndMetadata.comment, commentAndMetadata.metadata, null, null, variables);
+          variables.add(new VariableDeclaration(null, null, variableName, null, null));
+          variableList = new VariableDeclarationList(commentAndMetadata.comment, commentAndMetadata.metadata, null, null, variables);
         } else if (isInitializedVariableDeclaration()) {
           variableList = parseVariableDeclarationList(commentAndMetadata);
         } else {
@@ -4256,20 +4292,20 @@
           DeclaredIdentifier loopVariable = null;
           SimpleIdentifier identifier = null;
           if (variableList == null) {
-            reportError9(ParserErrorCode.MISSING_VARIABLE_IN_FOR_EACH, []);
+            reportError10(ParserErrorCode.MISSING_VARIABLE_IN_FOR_EACH, []);
           } else {
             NodeList<VariableDeclaration> variables = variableList.variables;
             if (variables.length > 1) {
-              reportError9(ParserErrorCode.MULTIPLE_VARIABLES_IN_FOR_EACH, [variables.length.toString()]);
+              reportError10(ParserErrorCode.MULTIPLE_VARIABLES_IN_FOR_EACH, [variables.length.toString()]);
             }
             VariableDeclaration variable = variables[0];
             if (variable.initializer != null) {
-              reportError9(ParserErrorCode.INITIALIZED_VARIABLE_IN_FOR_EACH, []);
+              reportError10(ParserErrorCode.INITIALIZED_VARIABLE_IN_FOR_EACH, []);
             }
             Token keyword = variableList.keyword;
             TypeName type = variableList.type;
             if (keyword != null || type != null) {
-              loopVariable = new DeclaredIdentifier.full(commentAndMetadata.comment, commentAndMetadata.metadata, keyword, type, variable.name);
+              loopVariable = new DeclaredIdentifier(commentAndMetadata.comment, commentAndMetadata.metadata, keyword, type, variable.name);
             } else {
               if (!commentAndMetadata.metadata.isEmpty) {
               }
@@ -4281,9 +4317,9 @@
           Token rightParenthesis = expect2(TokenType.CLOSE_PAREN);
           Statement body = parseStatement2();
           if (loopVariable == null) {
-            return new ForEachStatement.con2_full(forKeyword, leftParenthesis, identifier, inKeyword, iterator, rightParenthesis, body);
+            return new ForEachStatement.con2(forKeyword, leftParenthesis, identifier, inKeyword, iterator, rightParenthesis, body);
           }
-          return new ForEachStatement.con1_full(forKeyword, leftParenthesis, loopVariable, inKeyword, iterator, rightParenthesis, body);
+          return new ForEachStatement.con1(forKeyword, leftParenthesis, loopVariable, inKeyword, iterator, rightParenthesis, body);
         }
       }
       Token leftSeparator = expect2(TokenType.SEMICOLON);
@@ -4298,7 +4334,7 @@
       }
       Token rightParenthesis = expect2(TokenType.CLOSE_PAREN);
       Statement body = parseStatement2();
-      return new ForStatement.full(forKeyword, leftParenthesis, variableList, initialization, leftSeparator, condition, rightSeparator, updaters, rightParenthesis, body);
+      return new ForStatement(forKeyword, leftParenthesis, variableList, initialization, leftSeparator, condition, rightSeparator, updaters, rightParenthesis, body);
     } finally {
       _inLoop = wasInLoop;
     }
@@ -4318,7 +4354,7 @@
    * </pre>
    *
    * @param mayBeEmpty `true` if the function body is allowed to be empty
-   * @param emptyErrorCode the error code to report if function body expecte, but not found
+   * @param emptyErrorCode the error code to report if function body expected, but not found
    * @param inExpression `true` if the function body is being parsed as part of an expression
    *          and therefore does not have a terminating semicolon
    * @return the function body that was parsed
@@ -4331,9 +4367,9 @@
     try {
       if (matches5(TokenType.SEMICOLON)) {
         if (!mayBeEmpty) {
-          reportError9(emptyErrorCode, []);
+          reportError10(emptyErrorCode, []);
         }
-        return new EmptyFunctionBody.full(andAdvance);
+        return new EmptyFunctionBody(andAdvance);
       } else if (matches5(TokenType.FUNCTION)) {
         Token functionDefinition = andAdvance;
         Expression expression = parseExpression2();
@@ -4341,19 +4377,26 @@
         if (!inExpression) {
           semicolon = expect2(TokenType.SEMICOLON);
         }
-        return new ExpressionFunctionBody.full(functionDefinition, expression, semicolon);
+        if (!_parseFunctionBodies) {
+          return new EmptyFunctionBody(createSyntheticToken2(TokenType.SEMICOLON));
+        }
+        return new ExpressionFunctionBody(functionDefinition, expression, semicolon);
       } else if (matches5(TokenType.OPEN_CURLY_BRACKET)) {
-        return new BlockFunctionBody.full(parseBlock());
+        if (!_parseFunctionBodies) {
+          skipBlock();
+          return new EmptyFunctionBody(createSyntheticToken2(TokenType.SEMICOLON));
+        }
+        return new BlockFunctionBody(parseBlock());
       } else if (matches2(_NATIVE)) {
         Token nativeToken = andAdvance;
         StringLiteral stringLiteral = null;
         if (matches5(TokenType.STRING)) {
           stringLiteral = parseStringLiteral();
         }
-        return new NativeFunctionBody.full(nativeToken, stringLiteral, expect2(TokenType.SEMICOLON));
+        return new NativeFunctionBody(nativeToken, stringLiteral, expect2(TokenType.SEMICOLON));
       } else {
-        reportError9(emptyErrorCode, []);
-        return new EmptyFunctionBody.full(createSyntheticToken2(TokenType.SEMICOLON));
+        reportError10(emptyErrorCode, []);
+        return new EmptyFunctionBody(createSyntheticToken2(TokenType.SEMICOLON));
       }
     } finally {
       _inLoop = wasInLoop;
@@ -4393,19 +4436,19 @@
         parameters = parseFormalParameterList();
         validateFormalParameterList(parameters);
       } else {
-        reportError9(ParserErrorCode.MISSING_FUNCTION_PARAMETERS, []);
+        reportError10(ParserErrorCode.MISSING_FUNCTION_PARAMETERS, []);
       }
     } else if (matches5(TokenType.OPEN_PAREN)) {
-      reportError9(ParserErrorCode.GETTER_WITH_PARAMETERS, []);
+      reportError10(ParserErrorCode.GETTER_WITH_PARAMETERS, []);
       parseFormalParameterList();
     }
     FunctionBody body;
     if (externalKeyword == null) {
       body = parseFunctionBody(false, ParserErrorCode.MISSING_FUNCTION_BODY, false);
     } else {
-      body = new EmptyFunctionBody.full(expect2(TokenType.SEMICOLON));
+      body = new EmptyFunctionBody(expect2(TokenType.SEMICOLON));
     }
-    return new FunctionDeclaration.full(commentAndMetadata.comment, commentAndMetadata.metadata, externalKeyword, returnType, keyword, name, new FunctionExpression.full(parameters, body));
+    return new FunctionDeclaration(commentAndMetadata.comment, commentAndMetadata.metadata, externalKeyword, returnType, keyword, name, new FunctionExpression(parameters, body));
   }
 
   /**
@@ -4442,12 +4485,12 @@
     Token propertyKeyword = declaration.propertyKeyword;
     if (propertyKeyword != null) {
       if (identical((propertyKeyword as KeywordToken).keyword, Keyword.GET)) {
-        reportError10(ParserErrorCode.GETTER_IN_FUNCTION, propertyKeyword, []);
+        reportError11(ParserErrorCode.GETTER_IN_FUNCTION, propertyKeyword, []);
       } else {
-        reportError10(ParserErrorCode.SETTER_IN_FUNCTION, propertyKeyword, []);
+        reportError11(ParserErrorCode.SETTER_IN_FUNCTION, propertyKeyword, []);
       }
     }
-    return new FunctionDeclarationStatement.full(declaration);
+    return new FunctionDeclarationStatement(declaration);
   }
 
   /**
@@ -4476,18 +4519,18 @@
       typeParameters = parseTypeParameterList();
     }
     if (matches5(TokenType.SEMICOLON) || matches5(TokenType.EOF)) {
-      reportError9(ParserErrorCode.MISSING_TYPEDEF_PARAMETERS, []);
-      FormalParameterList parameters = new FormalParameterList.full(createSyntheticToken2(TokenType.OPEN_PAREN), null, null, null, createSyntheticToken2(TokenType.CLOSE_PAREN));
+      reportError10(ParserErrorCode.MISSING_TYPEDEF_PARAMETERS, []);
+      FormalParameterList parameters = new FormalParameterList(createSyntheticToken2(TokenType.OPEN_PAREN), null, null, null, createSyntheticToken2(TokenType.CLOSE_PAREN));
       Token semicolon = expect2(TokenType.SEMICOLON);
-      return new FunctionTypeAlias.full(commentAndMetadata.comment, commentAndMetadata.metadata, keyword, returnType, name, typeParameters, parameters, semicolon);
+      return new FunctionTypeAlias(commentAndMetadata.comment, commentAndMetadata.metadata, keyword, returnType, name, typeParameters, parameters, semicolon);
     } else if (!matches5(TokenType.OPEN_PAREN)) {
-      reportError9(ParserErrorCode.MISSING_TYPEDEF_PARAMETERS, []);
-      return new FunctionTypeAlias.full(commentAndMetadata.comment, commentAndMetadata.metadata, keyword, returnType, name, typeParameters, new FormalParameterList.full(createSyntheticToken2(TokenType.OPEN_PAREN), null, null, null, createSyntheticToken2(TokenType.CLOSE_PAREN)), createSyntheticToken2(TokenType.SEMICOLON));
+      reportError10(ParserErrorCode.MISSING_TYPEDEF_PARAMETERS, []);
+      return new FunctionTypeAlias(commentAndMetadata.comment, commentAndMetadata.metadata, keyword, returnType, name, typeParameters, new FormalParameterList(createSyntheticToken2(TokenType.OPEN_PAREN), null, null, null, createSyntheticToken2(TokenType.CLOSE_PAREN)), createSyntheticToken2(TokenType.SEMICOLON));
     }
     FormalParameterList parameters = parseFormalParameterList();
     validateFormalParameterList(parameters);
     Token semicolon = expect2(TokenType.SEMICOLON);
-    return new FunctionTypeAlias.full(commentAndMetadata.comment, commentAndMetadata.metadata, keyword, returnType, name, typeParameters, parameters, semicolon);
+    return new FunctionTypeAlias(commentAndMetadata.comment, commentAndMetadata.metadata, keyword, returnType, name, typeParameters, parameters, semicolon);
   }
 
   /**
@@ -4513,15 +4556,15 @@
     Token propertyKeyword = expect(Keyword.GET);
     SimpleIdentifier name = parseSimpleIdentifier();
     if (matches5(TokenType.OPEN_PAREN) && matches4(peek(), TokenType.CLOSE_PAREN)) {
-      reportError9(ParserErrorCode.GETTER_WITH_PARAMETERS, []);
+      reportError10(ParserErrorCode.GETTER_WITH_PARAMETERS, []);
       advance();
       advance();
     }
     FunctionBody body = parseFunctionBody(externalKeyword != null || staticKeyword == null, ParserErrorCode.STATIC_GETTER_WITHOUT_BODY, false);
     if (externalKeyword != null && body is! EmptyFunctionBody) {
-      reportError9(ParserErrorCode.EXTERNAL_GETTER_WITH_BODY, []);
+      reportError10(ParserErrorCode.EXTERNAL_GETTER_WITH_BODY, []);
     }
-    return new MethodDeclaration.full(commentAndMetadata.comment, commentAndMetadata.metadata, externalKeyword, staticKeyword, returnType, propertyKeyword, null, name, null, body);
+    return new MethodDeclaration(commentAndMetadata.comment, commentAndMetadata.metadata, externalKeyword, staticKeyword, returnType, propertyKeyword, null, name, null, body);
   }
 
   /**
@@ -4566,7 +4609,7 @@
       elseKeyword = andAdvance;
       elseStatement = parseStatement2();
     }
-    return new IfStatement.full(ifKeyword, leftParenthesis, condition, rightParenthesis, thenStatement, elseKeyword, elseStatement);
+    return new IfStatement(ifKeyword, leftParenthesis, condition, rightParenthesis, thenStatement, elseKeyword, elseStatement);
   }
 
   /**
@@ -4591,7 +4634,7 @@
     }
     List<Combinator> combinators = parseCombinators();
     Token semicolon = expect2(TokenType.SEMICOLON);
-    return new ImportDirective.full(commentAndMetadata.comment, commentAndMetadata.metadata, importKeyword, libraryUri, asToken, prefix, combinators, semicolon);
+    return new ImportDirective(commentAndMetadata.comment, commentAndMetadata.metadata, importKeyword, libraryUri, asToken, prefix, combinators, semicolon);
   }
 
   /**
@@ -4619,7 +4662,7 @@
    */
   FieldDeclaration parseInitializedIdentifierList(CommentAndMetadata commentAndMetadata, Token staticKeyword, Token keyword, TypeName type) {
     VariableDeclarationList fieldList = parseVariableDeclarationList2(null, keyword, type);
-    return new FieldDeclaration.full(commentAndMetadata.comment, commentAndMetadata.metadata, staticKeyword, fieldList, expect2(TokenType.SEMICOLON));
+    return new FieldDeclaration(commentAndMetadata.comment, commentAndMetadata.metadata, staticKeyword, fieldList, expect2(TokenType.SEMICOLON));
   }
 
   /**
@@ -4636,7 +4679,7 @@
   InstanceCreationExpression parseInstanceCreationExpression(Token keyword) {
     ConstructorName constructorName = parseConstructorName();
     ArgumentList argumentList = parseArgumentList();
-    return new InstanceCreationExpression.full(keyword, constructorName, argumentList);
+    return new InstanceCreationExpression(keyword, constructorName, argumentList);
   }
 
   /**
@@ -4654,7 +4697,7 @@
     Token keyword = expect(Keyword.LIBRARY);
     LibraryIdentifier libraryName = parseLibraryName(ParserErrorCode.MISSING_NAME_IN_LIBRARY_DIRECTIVE, keyword);
     Token semicolon = expect2(TokenType.SEMICOLON);
-    return new LibraryDirective.full(commentAndMetadata.comment, commentAndMetadata.metadata, keyword, libraryName, semicolon);
+    return new LibraryDirective(commentAndMetadata.comment, commentAndMetadata.metadata, keyword, libraryName, semicolon);
   }
 
   /**
@@ -4675,13 +4718,13 @@
       return parseLibraryIdentifier();
     } else if (matches5(TokenType.STRING)) {
       StringLiteral string = parseStringLiteral();
-      reportError(ParserErrorCode.NON_IDENTIFIER_LIBRARY_NAME, string, []);
+      reportError9(ParserErrorCode.NON_IDENTIFIER_LIBRARY_NAME, string, []);
     } else {
-      reportError10(missingNameError, missingNameToken, []);
+      reportError11(missingNameError, missingNameToken, []);
     }
     List<SimpleIdentifier> components = new List<SimpleIdentifier>();
     components.add(createSyntheticIdentifier());
-    return new LibraryIdentifier.full(components);
+    return new LibraryIdentifier(components);
   }
 
   /**
@@ -4707,22 +4750,22 @@
       leftBracket.setNext(rightBracket);
       _currentToken.previous.setNext(leftBracket);
       _currentToken = _currentToken.next;
-      return new ListLiteral.full(modifier, typeArguments, leftBracket, null, rightBracket);
+      return new ListLiteral(modifier, typeArguments, leftBracket, null, rightBracket);
     }
     Token leftBracket = expect2(TokenType.OPEN_SQUARE_BRACKET);
     if (matches5(TokenType.CLOSE_SQUARE_BRACKET)) {
-      return new ListLiteral.full(modifier, typeArguments, leftBracket, null, andAdvance);
+      return new ListLiteral(modifier, typeArguments, leftBracket, null, andAdvance);
     }
     List<Expression> elements = new List<Expression>();
     elements.add(parseExpression2());
     while (optional(TokenType.COMMA)) {
       if (matches5(TokenType.CLOSE_SQUARE_BRACKET)) {
-        return new ListLiteral.full(modifier, typeArguments, leftBracket, elements, andAdvance);
+        return new ListLiteral(modifier, typeArguments, leftBracket, elements, andAdvance);
       }
       elements.add(parseExpression2());
     }
     Token rightBracket = expect2(TokenType.CLOSE_SQUARE_BRACKET);
-    return new ListLiteral.full(modifier, typeArguments, leftBracket, elements, rightBracket);
+    return new ListLiteral(modifier, typeArguments, leftBracket, elements, rightBracket);
   }
 
   /**
@@ -4748,8 +4791,8 @@
     } else if (matches5(TokenType.OPEN_SQUARE_BRACKET) || matches5(TokenType.INDEX)) {
       return parseListLiteral(modifier, typeArguments);
     }
-    reportError9(ParserErrorCode.EXPECTED_LIST_OR_MAP_LITERAL, []);
-    return new ListLiteral.full(modifier, typeArguments, createSyntheticToken2(TokenType.OPEN_SQUARE_BRACKET), null, createSyntheticToken2(TokenType.CLOSE_SQUARE_BRACKET));
+    reportError10(ParserErrorCode.EXPECTED_LIST_OR_MAP_LITERAL, []);
+    return new ListLiteral(modifier, typeArguments, createSyntheticToken2(TokenType.OPEN_SQUARE_BRACKET), null, createSyntheticToken2(TokenType.CLOSE_SQUARE_BRACKET));
   }
 
   /**
@@ -4766,7 +4809,7 @@
     Expression expression = parseEqualityExpression();
     while (matches5(TokenType.AMPERSAND_AMPERSAND)) {
       Token operator = andAdvance;
-      expression = new BinaryExpression.full(expression, operator, parseEqualityExpression());
+      expression = new BinaryExpression(expression, operator, parseEqualityExpression());
     }
     return expression;
   }
@@ -4789,17 +4832,17 @@
     Token leftBracket = expect2(TokenType.OPEN_CURLY_BRACKET);
     List<MapLiteralEntry> entries = new List<MapLiteralEntry>();
     if (matches5(TokenType.CLOSE_CURLY_BRACKET)) {
-      return new MapLiteral.full(modifier, typeArguments, leftBracket, entries, andAdvance);
+      return new MapLiteral(modifier, typeArguments, leftBracket, entries, andAdvance);
     }
     entries.add(parseMapLiteralEntry());
     while (optional(TokenType.COMMA)) {
       if (matches5(TokenType.CLOSE_CURLY_BRACKET)) {
-        return new MapLiteral.full(modifier, typeArguments, leftBracket, entries, andAdvance);
+        return new MapLiteral(modifier, typeArguments, leftBracket, entries, andAdvance);
       }
       entries.add(parseMapLiteralEntry());
     }
     Token rightBracket = expect2(TokenType.CLOSE_CURLY_BRACKET);
-    return new MapLiteral.full(modifier, typeArguments, leftBracket, entries, rightBracket);
+    return new MapLiteral(modifier, typeArguments, leftBracket, entries, rightBracket);
   }
 
   /**
@@ -4847,14 +4890,14 @@
     FunctionBody body = parseFunctionBody(externalKeyword != null || staticKeyword == null, ParserErrorCode.MISSING_FUNCTION_BODY, false);
     if (externalKeyword != null) {
       if (body is! EmptyFunctionBody) {
-        reportError(ParserErrorCode.EXTERNAL_METHOD_WITH_BODY, body, []);
+        reportError9(ParserErrorCode.EXTERNAL_METHOD_WITH_BODY, body, []);
       }
     } else if (staticKeyword != null) {
       if (body is EmptyFunctionBody) {
-        reportError(ParserErrorCode.ABSTRACT_STATIC_METHOD, body, []);
+        reportError9(ParserErrorCode.ABSTRACT_STATIC_METHOD, body, []);
       }
     }
-    return new MethodDeclaration.full(commentAndMetadata.comment, commentAndMetadata.metadata, externalKeyword, staticKeyword, returnType, null, null, name, parameters, body);
+    return new MethodDeclaration(commentAndMetadata.comment, commentAndMetadata.metadata, externalKeyword, staticKeyword, returnType, null, null, name, parameters, body);
   }
 
   /**
@@ -4879,49 +4922,49 @@
       }
       if (matches(Keyword.ABSTRACT)) {
         if (modifiers.abstractKeyword != null) {
-          reportError9(ParserErrorCode.DUPLICATED_MODIFIER, [_currentToken.lexeme]);
+          reportError10(ParserErrorCode.DUPLICATED_MODIFIER, [_currentToken.lexeme]);
           advance();
         } else {
           modifiers.abstractKeyword = andAdvance;
         }
       } else if (matches(Keyword.CONST)) {
         if (modifiers.constKeyword != null) {
-          reportError9(ParserErrorCode.DUPLICATED_MODIFIER, [_currentToken.lexeme]);
+          reportError10(ParserErrorCode.DUPLICATED_MODIFIER, [_currentToken.lexeme]);
           advance();
         } else {
           modifiers.constKeyword = andAdvance;
         }
       } else if (matches(Keyword.EXTERNAL) && !matches4(peek(), TokenType.PERIOD) && !matches4(peek(), TokenType.LT)) {
         if (modifiers.externalKeyword != null) {
-          reportError9(ParserErrorCode.DUPLICATED_MODIFIER, [_currentToken.lexeme]);
+          reportError10(ParserErrorCode.DUPLICATED_MODIFIER, [_currentToken.lexeme]);
           advance();
         } else {
           modifiers.externalKeyword = andAdvance;
         }
       } else if (matches(Keyword.FACTORY) && !matches4(peek(), TokenType.PERIOD) && !matches4(peek(), TokenType.LT)) {
         if (modifiers.factoryKeyword != null) {
-          reportError9(ParserErrorCode.DUPLICATED_MODIFIER, [_currentToken.lexeme]);
+          reportError10(ParserErrorCode.DUPLICATED_MODIFIER, [_currentToken.lexeme]);
           advance();
         } else {
           modifiers.factoryKeyword = andAdvance;
         }
       } else if (matches(Keyword.FINAL)) {
         if (modifiers.finalKeyword != null) {
-          reportError9(ParserErrorCode.DUPLICATED_MODIFIER, [_currentToken.lexeme]);
+          reportError10(ParserErrorCode.DUPLICATED_MODIFIER, [_currentToken.lexeme]);
           advance();
         } else {
           modifiers.finalKeyword = andAdvance;
         }
       } else if (matches(Keyword.STATIC) && !matches4(peek(), TokenType.PERIOD) && !matches4(peek(), TokenType.LT)) {
         if (modifiers.staticKeyword != null) {
-          reportError9(ParserErrorCode.DUPLICATED_MODIFIER, [_currentToken.lexeme]);
+          reportError10(ParserErrorCode.DUPLICATED_MODIFIER, [_currentToken.lexeme]);
           advance();
         } else {
           modifiers.staticKeyword = andAdvance;
         }
       } else if (matches(Keyword.VAR)) {
         if (modifiers.varKeyword != null) {
-          reportError9(ParserErrorCode.DUPLICATED_MODIFIER, [_currentToken.lexeme]);
+          reportError10(ParserErrorCode.DUPLICATED_MODIFIER, [_currentToken.lexeme]);
           advance();
         } else {
           modifiers.varKeyword = andAdvance;
@@ -4947,13 +4990,13 @@
   Expression parseMultiplicativeExpression() {
     Expression expression;
     if (matches(Keyword.SUPER) && _currentToken.next.type.isMultiplicativeOperator) {
-      expression = new SuperExpression.full(andAdvance);
+      expression = new SuperExpression(andAdvance);
     } else {
       expression = parseUnaryExpression();
     }
     while (_currentToken.type.isMultiplicativeOperator) {
       Token operator = andAdvance;
-      expression = new BinaryExpression.full(expression, operator, parseUnaryExpression());
+      expression = new BinaryExpression(expression, operator, parseUnaryExpression());
     }
     return expression;
   }
@@ -4971,7 +5014,7 @@
   NativeClause parseNativeClause() {
     Token keyword = andAdvance;
     StringLiteral name = parseStringLiteral();
-    return new NativeClause.full(keyword, name);
+    return new NativeClause(keyword, name);
   }
 
   /**
@@ -5015,7 +5058,7 @@
       if (matches4(peek(), TokenType.STRING)) {
         Token afterString = skipStringLiteral(_currentToken.next);
         if (afterString != null && identical(afterString.type, TokenType.COLON)) {
-          return new ExpressionStatement.full(parseExpression2(), expect2(TokenType.SEMICOLON));
+          return new ExpressionStatement(parseExpression2(), expect2(TokenType.SEMICOLON));
         }
       }
       return parseBlock();
@@ -5034,13 +5077,13 @@
       } else if (identical(keyword, Keyword.IF)) {
         return parseIfStatement();
       } else if (identical(keyword, Keyword.RETHROW)) {
-        return new ExpressionStatement.full(parseRethrowExpression(), expect2(TokenType.SEMICOLON));
+        return new ExpressionStatement(parseRethrowExpression(), expect2(TokenType.SEMICOLON));
       } else if (identical(keyword, Keyword.RETURN)) {
         return parseReturnStatement();
       } else if (identical(keyword, Keyword.SWITCH)) {
         return parseSwitchStatement();
       } else if (identical(keyword, Keyword.THROW)) {
-        return new ExpressionStatement.full(parseThrowExpression(), expect2(TokenType.SEMICOLON));
+        return new ExpressionStatement(parseThrowExpression(), expect2(TokenType.SEMICOLON));
       } else if (identical(keyword, Keyword.TRY)) {
         return parseTryStatement();
       } else if (identical(keyword, Keyword.WHILE)) {
@@ -5057,14 +5100,14 @@
         } else {
           if (matchesIdentifier()) {
             if (matchesAny(peek(), [TokenType.EQ, TokenType.COMMA, TokenType.SEMICOLON])) {
-              reportError(ParserErrorCode.VOID_VARIABLE, returnType, []);
+              reportError9(ParserErrorCode.VOID_VARIABLE, returnType, []);
               return parseVariableDeclarationStatement(commentAndMetadata);
             }
           } else if (matches5(TokenType.CLOSE_CURLY_BRACKET)) {
             return parseVariableDeclarationStatement2(commentAndMetadata, null, returnType);
           }
-          reportError9(ParserErrorCode.MISSING_STATEMENT, []);
-          return new EmptyStatement.full(createSyntheticToken2(TokenType.SEMICOLON));
+          reportError10(ParserErrorCode.MISSING_STATEMENT, []);
+          return new EmptyStatement(createSyntheticToken2(TokenType.SEMICOLON));
         }
       } else if (identical(keyword, Keyword.CONST)) {
         if (matchesAny(peek(), [
@@ -5072,21 +5115,21 @@
             TokenType.OPEN_CURLY_BRACKET,
             TokenType.OPEN_SQUARE_BRACKET,
             TokenType.INDEX])) {
-          return new ExpressionStatement.full(parseExpression2(), expect2(TokenType.SEMICOLON));
+          return new ExpressionStatement(parseExpression2(), expect2(TokenType.SEMICOLON));
         } else if (matches4(peek(), TokenType.IDENTIFIER)) {
           Token afterType = skipTypeName(peek());
           if (afterType != null) {
             if (matches4(afterType, TokenType.OPEN_PAREN) || (matches4(afterType, TokenType.PERIOD) && matches4(afterType.next, TokenType.IDENTIFIER) && matches4(afterType.next.next, TokenType.OPEN_PAREN))) {
-              return new ExpressionStatement.full(parseExpression2(), expect2(TokenType.SEMICOLON));
+              return new ExpressionStatement(parseExpression2(), expect2(TokenType.SEMICOLON));
             }
           }
         }
         return parseVariableDeclarationStatement(commentAndMetadata);
       } else if (identical(keyword, Keyword.NEW) || identical(keyword, Keyword.TRUE) || identical(keyword, Keyword.FALSE) || identical(keyword, Keyword.NULL) || identical(keyword, Keyword.SUPER) || identical(keyword, Keyword.THIS)) {
-        return new ExpressionStatement.full(parseExpression2(), expect2(TokenType.SEMICOLON));
+        return new ExpressionStatement(parseExpression2(), expect2(TokenType.SEMICOLON));
       } else {
-        reportError9(ParserErrorCode.MISSING_STATEMENT, []);
-        return new EmptyStatement.full(createSyntheticToken2(TokenType.SEMICOLON));
+        reportError10(ParserErrorCode.MISSING_STATEMENT, []);
+        return new EmptyStatement(createSyntheticToken2(TokenType.SEMICOLON));
       }
     } else if (matches5(TokenType.SEMICOLON)) {
       return parseEmptyStatement();
@@ -5095,10 +5138,10 @@
     } else if (isFunctionDeclaration()) {
       return parseFunctionDeclarationStatement();
     } else if (matches5(TokenType.CLOSE_CURLY_BRACKET)) {
-      reportError9(ParserErrorCode.MISSING_STATEMENT, []);
-      return new EmptyStatement.full(createSyntheticToken2(TokenType.SEMICOLON));
+      reportError10(ParserErrorCode.MISSING_STATEMENT, []);
+      return new EmptyStatement(createSyntheticToken2(TokenType.SEMICOLON));
     } else {
-      return new ExpressionStatement.full(parseExpression2(), expect2(TokenType.SEMICOLON));
+      return new ExpressionStatement(parseExpression2(), expect2(TokenType.SEMICOLON));
     }
   }
 
@@ -5125,17 +5168,17 @@
     if (matches(Keyword.OPERATOR)) {
       operatorKeyword = andAdvance;
     } else {
-      reportError10(ParserErrorCode.MISSING_KEYWORD_OPERATOR, _currentToken, []);
+      reportError11(ParserErrorCode.MISSING_KEYWORD_OPERATOR, _currentToken, []);
       operatorKeyword = createSyntheticToken(Keyword.OPERATOR);
     }
     if (!_currentToken.isUserDefinableOperator) {
-      reportError9(ParserErrorCode.NON_USER_DEFINABLE_OPERATOR, [_currentToken.lexeme]);
+      reportError10(ParserErrorCode.NON_USER_DEFINABLE_OPERATOR, [_currentToken.lexeme]);
     }
-    SimpleIdentifier name = new SimpleIdentifier.full(andAdvance);
+    SimpleIdentifier name = new SimpleIdentifier(andAdvance);
     if (matches5(TokenType.EQ)) {
       Token previous = _currentToken.previous;
       if ((matches4(previous, TokenType.EQ_EQ) || matches4(previous, TokenType.BANG_EQ)) && _currentToken.offset == previous.offset + 2) {
-        reportError9(ParserErrorCode.INVALID_OPERATOR, ["${previous.lexeme}${_currentToken.lexeme}"]);
+        reportError10(ParserErrorCode.INVALID_OPERATOR, ["${previous.lexeme}${_currentToken.lexeme}"]);
         advance();
       }
     }
@@ -5143,9 +5186,9 @@
     validateFormalParameterList(parameters);
     FunctionBody body = parseFunctionBody(true, ParserErrorCode.MISSING_FUNCTION_BODY, false);
     if (externalKeyword != null && body is! EmptyFunctionBody) {
-      reportError9(ParserErrorCode.EXTERNAL_OPERATOR_WITH_BODY, []);
+      reportError10(ParserErrorCode.EXTERNAL_OPERATOR_WITH_BODY, []);
     }
-    return new MethodDeclaration.full(commentAndMetadata.comment, commentAndMetadata.metadata, externalKeyword, null, returnType, null, operatorKeyword, name, parameters, body);
+    return new MethodDeclaration(commentAndMetadata.comment, commentAndMetadata.metadata, externalKeyword, null, returnType, null, operatorKeyword, name, parameters, body);
   }
 
   /**
@@ -5184,11 +5227,11 @@
       Token ofKeyword = andAdvance;
       LibraryIdentifier libraryName = parseLibraryName(ParserErrorCode.MISSING_NAME_IN_PART_OF_DIRECTIVE, ofKeyword);
       Token semicolon = expect2(TokenType.SEMICOLON);
-      return new PartOfDirective.full(commentAndMetadata.comment, commentAndMetadata.metadata, partKeyword, ofKeyword, libraryName, semicolon);
+      return new PartOfDirective(commentAndMetadata.comment, commentAndMetadata.metadata, partKeyword, ofKeyword, libraryName, semicolon);
     }
     StringLiteral partUri = parseStringLiteral();
     Token semicolon = expect2(TokenType.SEMICOLON);
-    return new PartDirective.full(commentAndMetadata.comment, commentAndMetadata.metadata, partKeyword, partUri, semicolon);
+    return new PartDirective(commentAndMetadata.comment, commentAndMetadata.metadata, partKeyword, partUri, semicolon);
   }
 
   /**
@@ -5214,9 +5257,9 @@
           ArgumentList argumentList = parseArgumentList();
           if (operand is PropertyAccess) {
             PropertyAccess access = operand as PropertyAccess;
-            operand = new MethodInvocation.full(access.target, access.operator, access.propertyName, argumentList);
+            operand = new MethodInvocation(access.target, access.operator, access.propertyName, argumentList);
           } else {
-            operand = new FunctionExpressionInvocation.full(operand, argumentList);
+            operand = new FunctionExpressionInvocation(operand, argumentList);
           }
         } else {
           operand = parseAssignableSelector(operand, true);
@@ -5228,10 +5271,10 @@
       return operand;
     }
     if (operand is Literal || operand is FunctionExpressionInvocation) {
-      reportError9(ParserErrorCode.MISSING_ASSIGNABLE_SELECTOR, []);
+      reportError10(ParserErrorCode.MISSING_ASSIGNABLE_SELECTOR, []);
     }
     Token operator = andAdvance;
-    return new PostfixExpression.full(operand, operator);
+    return new PostfixExpression(operand, operator);
   }
 
   /**
@@ -5263,15 +5306,15 @@
    */
   Expression parsePrimaryExpression() {
     if (matches(Keyword.THIS)) {
-      return new ThisExpression.full(andAdvance);
+      return new ThisExpression(andAdvance);
     } else if (matches(Keyword.SUPER)) {
-      return parseAssignableSelector(new SuperExpression.full(andAdvance), false);
+      return parseAssignableSelector(new SuperExpression(andAdvance), false);
     } else if (matches(Keyword.NULL)) {
-      return new NullLiteral.full(andAdvance);
+      return new NullLiteral(andAdvance);
     } else if (matches(Keyword.FALSE)) {
-      return new BooleanLiteral.full(andAdvance, false);
+      return new BooleanLiteral(andAdvance, false);
     } else if (matches(Keyword.TRUE)) {
-      return new BooleanLiteral.full(andAdvance, true);
+      return new BooleanLiteral(andAdvance, true);
     } else if (matches5(TokenType.DOUBLE)) {
       Token token = andAdvance;
       double value = 0.0;
@@ -5279,7 +5322,7 @@
         value = double.parse(token.lexeme);
       } on FormatException catch (exception) {
       }
-      return new DoubleLiteral.full(token, value);
+      return new DoubleLiteral(token, value);
     } else if (matches5(TokenType.HEXADECIMAL)) {
       Token token = andAdvance;
       int value = null;
@@ -5287,7 +5330,7 @@
         value = int.parse(token.lexeme.substring(2), radix: 16);
       } on FormatException catch (exception) {
       }
-      return new IntegerLiteral.full(token, value);
+      return new IntegerLiteral(token, value);
     } else if (matches5(TokenType.INT)) {
       Token token = andAdvance;
       int value = null;
@@ -5295,7 +5338,7 @@
         value = int.parse(token.lexeme);
       } on FormatException catch (exception) {
       }
-      return new IntegerLiteral.full(token, value);
+      return new IntegerLiteral(token, value);
     } else if (matches5(TokenType.STRING)) {
       return parseStringLiteral();
     } else if (matches5(TokenType.OPEN_CURLY_BRACKET)) {
@@ -5315,19 +5358,19 @@
       Token leftParenthesis = andAdvance;
       Expression expression = parseExpression2();
       Token rightParenthesis = expect2(TokenType.CLOSE_PAREN);
-      return new ParenthesizedExpression.full(leftParenthesis, expression, rightParenthesis);
+      return new ParenthesizedExpression(leftParenthesis, expression, rightParenthesis);
     } else if (matches5(TokenType.LT)) {
       return parseListOrMapLiteral(null);
     } else if (matches5(TokenType.QUESTION)) {
       return parseArgumentDefinitionTest();
     } else if (matches(Keyword.VOID)) {
-      reportError9(ParserErrorCode.UNEXPECTED_TOKEN, [_currentToken.lexeme]);
+      reportError10(ParserErrorCode.UNEXPECTED_TOKEN, [_currentToken.lexeme]);
       advance();
       return parsePrimaryExpression();
     } else if (matches5(TokenType.HASH)) {
       return parseSymbolLiteral();
     } else {
-      reportError9(ParserErrorCode.MISSING_IDENTIFIER, []);
+      reportError10(ParserErrorCode.MISSING_IDENTIFIER, []);
       return createSyntheticIdentifier();
     }
   }
@@ -5351,7 +5394,7 @@
       constructorName = parseSimpleIdentifier();
     }
     ArgumentList argumentList = parseArgumentList();
-    return new RedirectingConstructorInvocation.full(keyword, period, constructorName, argumentList);
+    return new RedirectingConstructorInvocation(keyword, period, constructorName, argumentList);
   }
 
   /**
@@ -5367,25 +5410,25 @@
    */
   Expression parseRelationalExpression() {
     if (matches(Keyword.SUPER) && _currentToken.next.type.isRelationalOperator) {
-      Expression expression = new SuperExpression.full(andAdvance);
+      Expression expression = new SuperExpression(andAdvance);
       Token operator = andAdvance;
-      expression = new BinaryExpression.full(expression, operator, parseBitwiseOrExpression());
+      expression = new BinaryExpression(expression, operator, parseBitwiseOrExpression());
       return expression;
     }
     Expression expression = parseBitwiseOrExpression();
     if (matches(Keyword.AS)) {
       Token asOperator = andAdvance;
-      expression = new AsExpression.full(expression, asOperator, parseTypeName());
+      expression = new AsExpression(expression, asOperator, parseTypeName());
     } else if (matches(Keyword.IS)) {
       Token isOperator = andAdvance;
       Token notOperator = null;
       if (matches5(TokenType.BANG)) {
         notOperator = andAdvance;
       }
-      expression = new IsExpression.full(expression, isOperator, notOperator, parseTypeName());
+      expression = new IsExpression(expression, isOperator, notOperator, parseTypeName());
     } else if (_currentToken.type.isRelationalOperator) {
       Token operator = andAdvance;
-      expression = new BinaryExpression.full(expression, operator, parseBitwiseOrExpression());
+      expression = new BinaryExpression(expression, operator, parseBitwiseOrExpression());
     }
     return expression;
   }
@@ -5400,7 +5443,7 @@
    *
    * @return the rethrow expression that was parsed
    */
-  Expression parseRethrowExpression() => new RethrowExpression.full(expect(Keyword.RETHROW));
+  Expression parseRethrowExpression() => new RethrowExpression(expect(Keyword.RETHROW));
 
   /**
    * Parse a return statement.
@@ -5415,11 +5458,11 @@
   Statement parseReturnStatement() {
     Token returnKeyword = expect(Keyword.RETURN);
     if (matches5(TokenType.SEMICOLON)) {
-      return new ReturnStatement.full(returnKeyword, null, andAdvance);
+      return new ReturnStatement(returnKeyword, null, andAdvance);
     }
     Expression expression = parseExpression2();
     Token semicolon = expect2(TokenType.SEMICOLON);
-    return new ReturnStatement.full(returnKeyword, expression, semicolon);
+    return new ReturnStatement(returnKeyword, expression, semicolon);
   }
 
   /**
@@ -5448,9 +5491,9 @@
     validateFormalParameterList(parameters);
     FunctionBody body = parseFunctionBody(externalKeyword != null || staticKeyword == null, ParserErrorCode.STATIC_SETTER_WITHOUT_BODY, false);
     if (externalKeyword != null && body is! EmptyFunctionBody) {
-      reportError9(ParserErrorCode.EXTERNAL_SETTER_WITH_BODY, []);
+      reportError10(ParserErrorCode.EXTERNAL_SETTER_WITH_BODY, []);
     }
-    return new MethodDeclaration.full(commentAndMetadata.comment, commentAndMetadata.metadata, externalKeyword, staticKeyword, returnType, propertyKeyword, null, name, parameters, body);
+    return new MethodDeclaration(commentAndMetadata.comment, commentAndMetadata.metadata, externalKeyword, staticKeyword, returnType, propertyKeyword, null, name, parameters, body);
   }
 
   /**
@@ -5467,13 +5510,13 @@
   Expression parseShiftExpression() {
     Expression expression;
     if (matches(Keyword.SUPER) && _currentToken.next.type.isShiftOperator) {
-      expression = new SuperExpression.full(andAdvance);
+      expression = new SuperExpression(andAdvance);
     } else {
       expression = parseAdditiveExpression();
     }
     while (_currentToken.type.isShiftOperator) {
       Token operator = andAdvance;
-      expression = new BinaryExpression.full(expression, operator, parseAdditiveExpression());
+      expression = new BinaryExpression(expression, operator, parseAdditiveExpression());
     }
     return expression;
   }
@@ -5494,7 +5537,7 @@
     while (!matches5(TokenType.EOF) && !matches5(TokenType.CLOSE_CURLY_BRACKET) && !isSwitchMember()) {
       statements.add(parseStatement2());
       if (identical(_currentToken, statementStart)) {
-        reportError10(ParserErrorCode.UNEXPECTED_TOKEN, _currentToken, [_currentToken.lexeme]);
+        reportError11(ParserErrorCode.UNEXPECTED_TOKEN, _currentToken, [_currentToken.lexeme]);
         advance();
       }
       statementStart = _currentToken;
@@ -5510,30 +5553,30 @@
   StringInterpolation parseStringInterpolation(Token string) {
     List<InterpolationElement> elements = new List<InterpolationElement>();
     bool hasMore = matches5(TokenType.STRING_INTERPOLATION_EXPRESSION) || matches5(TokenType.STRING_INTERPOLATION_IDENTIFIER);
-    elements.add(new InterpolationString.full(string, computeStringValue(string.lexeme, true, !hasMore)));
+    elements.add(new InterpolationString(string, computeStringValue(string.lexeme, true, !hasMore)));
     while (hasMore) {
       if (matches5(TokenType.STRING_INTERPOLATION_EXPRESSION)) {
         Token openToken = andAdvance;
         Expression expression = parseExpression2();
         Token rightBracket = expect2(TokenType.CLOSE_CURLY_BRACKET);
-        elements.add(new InterpolationExpression.full(openToken, expression, rightBracket));
+        elements.add(new InterpolationExpression(openToken, expression, rightBracket));
       } else {
         Token openToken = andAdvance;
         Expression expression = null;
         if (matches(Keyword.THIS)) {
-          expression = new ThisExpression.full(andAdvance);
+          expression = new ThisExpression(andAdvance);
         } else {
           expression = parseSimpleIdentifier();
         }
-        elements.add(new InterpolationExpression.full(openToken, expression, null));
+        elements.add(new InterpolationExpression(openToken, expression, null));
       }
       if (matches5(TokenType.STRING)) {
         string = andAdvance;
         hasMore = matches5(TokenType.STRING_INTERPOLATION_EXPRESSION) || matches5(TokenType.STRING_INTERPOLATION_IDENTIFIER);
-        elements.add(new InterpolationString.full(string, computeStringValue(string.lexeme, false, !hasMore)));
+        elements.add(new InterpolationString(string, computeStringValue(string.lexeme, false, !hasMore)));
       }
     }
-    return new StringInterpolation.full(elements);
+    return new StringInterpolation(elements);
   }
 
   /**
@@ -5555,7 +5598,7 @@
       constructorName = parseSimpleIdentifier();
     }
     ArgumentList argumentList = parseArgumentList();
-    return new SuperConstructorInvocation.full(keyword, period, constructorName, argumentList);
+    return new SuperConstructorInvocation(keyword, period, constructorName, argumentList);
   }
 
   /**
@@ -5592,37 +5635,37 @@
           SimpleIdentifier identifier = parseSimpleIdentifier();
           String label = identifier.token.lexeme;
           if (definedLabels.contains(label)) {
-            reportError10(ParserErrorCode.DUPLICATE_LABEL_IN_SWITCH_STATEMENT, identifier.token, [label]);
+            reportError11(ParserErrorCode.DUPLICATE_LABEL_IN_SWITCH_STATEMENT, identifier.token, [label]);
           } else {
             definedLabels.add(label);
           }
           Token colon = expect2(TokenType.COLON);
-          labels.add(new Label.full(identifier, colon));
+          labels.add(new Label(identifier, colon));
         }
         if (matches(Keyword.CASE)) {
           Token caseKeyword = andAdvance;
           Expression caseExpression = parseExpression2();
           Token colon = expect2(TokenType.COLON);
-          members.add(new SwitchCase.full(labels, caseKeyword, caseExpression, colon, parseStatements2()));
+          members.add(new SwitchCase(labels, caseKeyword, caseExpression, colon, parseStatements2()));
           if (defaultKeyword != null) {
-            reportError10(ParserErrorCode.SWITCH_HAS_CASE_AFTER_DEFAULT_CASE, caseKeyword, []);
+            reportError11(ParserErrorCode.SWITCH_HAS_CASE_AFTER_DEFAULT_CASE, caseKeyword, []);
           }
         } else if (matches(Keyword.DEFAULT)) {
           if (defaultKeyword != null) {
-            reportError10(ParserErrorCode.SWITCH_HAS_MULTIPLE_DEFAULT_CASES, peek(), []);
+            reportError11(ParserErrorCode.SWITCH_HAS_MULTIPLE_DEFAULT_CASES, peek(), []);
           }
           defaultKeyword = andAdvance;
           Token colon = expect2(TokenType.COLON);
-          members.add(new SwitchDefault.full(labels, defaultKeyword, colon, parseStatements2()));
+          members.add(new SwitchDefault(labels, defaultKeyword, colon, parseStatements2()));
         } else {
-          reportError9(ParserErrorCode.EXPECTED_CASE_OR_DEFAULT, []);
+          reportError10(ParserErrorCode.EXPECTED_CASE_OR_DEFAULT, []);
           while (!matches5(TokenType.EOF) && !matches5(TokenType.CLOSE_CURLY_BRACKET) && !matches(Keyword.CASE) && !matches(Keyword.DEFAULT)) {
             advance();
           }
         }
       }
       Token rightBracket = expect2(TokenType.CLOSE_CURLY_BRACKET);
-      return new SwitchStatement.full(keyword, leftParenthesis, expression, rightParenthesis, leftBracket, members, rightBracket);
+      return new SwitchStatement(keyword, leftParenthesis, expression, rightParenthesis, leftBracket, members, rightBracket);
     } finally {
       _inSwitch = wasInSwitch;
     }
@@ -5648,7 +5691,7 @@
         if (matchesIdentifier()) {
           components.add(andAdvance);
         } else {
-          reportError9(ParserErrorCode.MISSING_IDENTIFIER, []);
+          reportError10(ParserErrorCode.MISSING_IDENTIFIER, []);
           components.add(createSyntheticToken2(TokenType.IDENTIFIER));
           break;
         }
@@ -5656,10 +5699,10 @@
     } else if (_currentToken.isOperator) {
       components.add(andAdvance);
     } else {
-      reportError9(ParserErrorCode.MISSING_IDENTIFIER, []);
+      reportError10(ParserErrorCode.MISSING_IDENTIFIER, []);
       components.add(createSyntheticToken2(TokenType.IDENTIFIER));
     }
-    return new SymbolLiteral.full(poundSign, new List.from(components));
+    return new SymbolLiteral(poundSign, new List.from(components));
   }
 
   /**
@@ -5675,11 +5718,11 @@
   Expression parseThrowExpression() {
     Token keyword = expect(Keyword.THROW);
     if (matches5(TokenType.SEMICOLON) || matches5(TokenType.CLOSE_PAREN)) {
-      reportError10(ParserErrorCode.MISSING_EXPRESSION_IN_THROW, _currentToken, []);
-      return new ThrowExpression.full(keyword, createSyntheticIdentifier());
+      reportError11(ParserErrorCode.MISSING_EXPRESSION_IN_THROW, _currentToken, []);
+      return new ThrowExpression(keyword, createSyntheticIdentifier());
     }
     Expression expression = parseExpression2();
-    return new ThrowExpression.full(keyword, expression);
+    return new ThrowExpression(keyword, expression);
   }
 
   /**
@@ -5695,11 +5738,11 @@
   Expression parseThrowExpressionWithoutCascade() {
     Token keyword = expect(Keyword.THROW);
     if (matches5(TokenType.SEMICOLON) || matches5(TokenType.CLOSE_PAREN)) {
-      reportError10(ParserErrorCode.MISSING_EXPRESSION_IN_THROW, _currentToken, []);
-      return new ThrowExpression.full(keyword, createSyntheticIdentifier());
+      reportError11(ParserErrorCode.MISSING_EXPRESSION_IN_THROW, _currentToken, []);
+      return new ThrowExpression(keyword, createSyntheticIdentifier());
     }
     Expression expression = parseExpressionWithoutCascade();
-    return new ThrowExpression.full(keyword, expression);
+    return new ThrowExpression(keyword, expression);
   }
 
   /**
@@ -5751,7 +5794,7 @@
         rightParenthesis = expect2(TokenType.CLOSE_PAREN);
       }
       Block catchBody = parseBlock();
-      catchClauses.add(new CatchClause.full(onKeyword, exceptionType, catchKeyword, leftParenthesis, exceptionParameter, comma, stackTraceParameter, rightParenthesis, catchBody));
+      catchClauses.add(new CatchClause(onKeyword, exceptionType, catchKeyword, leftParenthesis, exceptionParameter, comma, stackTraceParameter, rightParenthesis, catchBody));
     }
     Token finallyKeyword = null;
     if (matches(Keyword.FINALLY)) {
@@ -5759,10 +5802,10 @@
       finallyClause = parseBlock();
     } else {
       if (catchClauses.isEmpty) {
-        reportError9(ParserErrorCode.MISSING_CATCH_OR_FINALLY, []);
+        reportError10(ParserErrorCode.MISSING_CATCH_OR_FINALLY, []);
       }
     }
-    return new TryStatement.full(tryKeyword, body, catchClauses, finallyKeyword, finallyClause);
+    return new TryStatement(tryKeyword, body, catchClauses, finallyKeyword, finallyClause);
   }
 
   /**
@@ -5800,12 +5843,12 @@
         next = skipTypeParameterList(next);
         if (next != null && matches4(next, TokenType.EQ)) {
           TypeAlias typeAlias = parseClassTypeAlias(commentAndMetadata, keyword);
-          reportError10(ParserErrorCode.DEPRECATED_CLASS_TYPE_ALIAS, keyword, []);
+          reportError11(ParserErrorCode.DEPRECATED_CLASS_TYPE_ALIAS, keyword, []);
           return typeAlias;
         }
       } else if (matches4(next, TokenType.EQ)) {
         TypeAlias typeAlias = parseClassTypeAlias(commentAndMetadata, keyword);
-        reportError10(ParserErrorCode.DEPRECATED_CLASS_TYPE_ALIAS, keyword, []);
+        reportError11(ParserErrorCode.DEPRECATED_CLASS_TYPE_ALIAS, keyword, []);
         return typeAlias;
       }
     }
@@ -5831,16 +5874,16 @@
       Token operator = andAdvance;
       if (matches(Keyword.SUPER)) {
         if (matches4(peek(), TokenType.OPEN_SQUARE_BRACKET) || matches4(peek(), TokenType.PERIOD)) {
-          return new PrefixExpression.full(operator, parseUnaryExpression());
+          return new PrefixExpression(operator, parseUnaryExpression());
         }
-        return new PrefixExpression.full(operator, new SuperExpression.full(andAdvance));
+        return new PrefixExpression(operator, new SuperExpression(andAdvance));
       }
-      return new PrefixExpression.full(operator, parseUnaryExpression());
+      return new PrefixExpression(operator, parseUnaryExpression());
     } else if (_currentToken.type.isIncrementOperator) {
       Token operator = andAdvance;
       if (matches(Keyword.SUPER)) {
         if (matches4(peek(), TokenType.OPEN_SQUARE_BRACKET) || matches4(peek(), TokenType.PERIOD)) {
-          return new PrefixExpression.full(operator, parseUnaryExpression());
+          return new PrefixExpression(operator, parseUnaryExpression());
         }
         if (identical(operator.type, TokenType.MINUS_MINUS)) {
           int offset = operator.offset;
@@ -5849,15 +5892,15 @@
           secondOperator.setNext(_currentToken);
           firstOperator.setNext(secondOperator);
           operator.previous.setNext(firstOperator);
-          return new PrefixExpression.full(firstOperator, new PrefixExpression.full(secondOperator, new SuperExpression.full(andAdvance)));
+          return new PrefixExpression(firstOperator, new PrefixExpression(secondOperator, new SuperExpression(andAdvance)));
         } else {
-          reportError9(ParserErrorCode.INVALID_OPERATOR_FOR_SUPER, [operator.lexeme]);
-          return new PrefixExpression.full(operator, new SuperExpression.full(andAdvance));
+          reportError10(ParserErrorCode.INVALID_OPERATOR_FOR_SUPER, [operator.lexeme]);
+          return new PrefixExpression(operator, new SuperExpression(andAdvance));
         }
       }
-      return new PrefixExpression.full(operator, parseAssignableExpression(false));
+      return new PrefixExpression(operator, parseAssignableExpression(false));
     } else if (matches5(TokenType.PLUS)) {
-      reportError9(ParserErrorCode.MISSING_IDENTIFIER, []);
+      reportError10(ParserErrorCode.MISSING_IDENTIFIER, []);
       return createSyntheticIdentifier();
     }
     return parsePostfixExpression();
@@ -5882,7 +5925,7 @@
       equals = andAdvance;
       initializer = parseExpression2();
     }
-    return new VariableDeclaration.full(commentAndMetadata.comment, commentAndMetadata.metadata, name, equals, initializer);
+    return new VariableDeclaration(commentAndMetadata.comment, commentAndMetadata.metadata, name, equals, initializer);
   }
 
   /**
@@ -5918,7 +5961,7 @@
    */
   VariableDeclarationList parseVariableDeclarationList2(CommentAndMetadata commentAndMetadata, Token keyword, TypeName type) {
     if (type != null && keyword != null && matches3(keyword, Keyword.VAR)) {
-      reportError10(ParserErrorCode.VAR_AND_TYPE, keyword, []);
+      reportError11(ParserErrorCode.VAR_AND_TYPE, keyword, []);
     }
     List<VariableDeclaration> variables = new List<VariableDeclaration>();
     variables.add(parseVariableDeclaration());
@@ -5926,7 +5969,7 @@
       advance();
       variables.add(parseVariableDeclaration());
     }
-    return new VariableDeclarationList.full(commentAndMetadata != null ? commentAndMetadata.comment : null, commentAndMetadata != null ? commentAndMetadata.metadata : null, keyword, type, variables);
+    return new VariableDeclarationList(commentAndMetadata != null ? commentAndMetadata.comment : null, commentAndMetadata != null ? commentAndMetadata.metadata : null, keyword, type, variables);
   }
 
   /**
@@ -5944,7 +5987,7 @@
   VariableDeclarationStatement parseVariableDeclarationStatement(CommentAndMetadata commentAndMetadata) {
     VariableDeclarationList variableList = parseVariableDeclarationList(commentAndMetadata);
     Token semicolon = expect2(TokenType.SEMICOLON);
-    return new VariableDeclarationStatement.full(variableList, semicolon);
+    return new VariableDeclarationStatement(variableList, semicolon);
   }
 
   /**
@@ -5965,7 +6008,7 @@
   VariableDeclarationStatement parseVariableDeclarationStatement2(CommentAndMetadata commentAndMetadata, Token keyword, TypeName type) {
     VariableDeclarationList variableList = parseVariableDeclarationList2(commentAndMetadata, keyword, type);
     Token semicolon = expect2(TokenType.SEMICOLON);
-    return new VariableDeclarationStatement.full(variableList, semicolon);
+    return new VariableDeclarationStatement(variableList, semicolon);
   }
 
   /**
@@ -5987,7 +6030,7 @@
       Expression condition = parseExpression2();
       Token rightParenthesis = expect2(TokenType.CLOSE_PAREN);
       Statement body = parseStatement2();
-      return new WhileStatement.full(keyword, leftParenthesis, condition, rightParenthesis, body);
+      return new WhileStatement(keyword, leftParenthesis, condition, rightParenthesis, body);
     } finally {
       _inLoop = wasInLoop;
     }
@@ -6017,14 +6060,26 @@
   }
 
   /**
+   * Report the given [AnalysisError].
+   *
+   * @param error the error to be reported
+   */
+  void reportError(AnalysisError error) {
+    if (_errorListenerLock != 0) {
+      return;
+    }
+    _errorListener.onError(error);
+  }
+
+  /**
    * Report an error with the given error code and arguments.
    *
    * @param errorCode the error code of the error to be reported
    * @param node the node specifying the location of the error
    * @param arguments the arguments to the error, used to compose the error message
    */
-  void reportError(ParserErrorCode errorCode, ASTNode node, List<Object> arguments) {
-    _errorListener.onError(new AnalysisError.con2(_source, node.offset, node.length, errorCode, arguments));
+  void reportError9(ParserErrorCode errorCode, ASTNode node, List<Object> arguments) {
+    reportError(new AnalysisError.con2(_source, node.offset, node.length, errorCode, arguments));
   }
 
   /**
@@ -6033,8 +6088,8 @@
    * @param errorCode the error code of the error to be reported
    * @param arguments the arguments to the error, used to compose the error message
    */
-  void reportError9(ParserErrorCode errorCode, List<Object> arguments) {
-    reportError10(errorCode, _currentToken, arguments);
+  void reportError10(ParserErrorCode errorCode, List<Object> arguments) {
+    reportError11(errorCode, _currentToken, arguments);
   }
 
   /**
@@ -6044,8 +6099,15 @@
    * @param token the token specifying the location of the error
    * @param arguments the arguments to the error, used to compose the error message
    */
-  void reportError10(ParserErrorCode errorCode, Token token, List<Object> arguments) {
-    _errorListener.onError(new AnalysisError.con2(_source, token.offset, token.length, errorCode, arguments));
+  void reportError11(ParserErrorCode errorCode, Token token, List<Object> arguments) {
+    reportError(new AnalysisError.con2(_source, token.offset, token.length, errorCode, arguments));
+  }
+
+  /**
+   * Skips a block with all containing blocks.
+   */
+  void skipBlock() {
+    _currentToken = (_currentToken as BeginToken).endToken.next;
   }
 
   /**
@@ -6486,13 +6548,13 @@
       builder.appendChar(0xB);
     } else if (currentChar == 0x78) {
       if (currentIndex + 2 >= length) {
-        reportError9(ParserErrorCode.INVALID_HEX_ESCAPE, []);
+        reportError10(ParserErrorCode.INVALID_HEX_ESCAPE, []);
         return length;
       }
       int firstDigit = lexeme.codeUnitAt(currentIndex + 1);
       int secondDigit = lexeme.codeUnitAt(currentIndex + 2);
       if (!isHexDigit(firstDigit) || !isHexDigit(secondDigit)) {
-        reportError9(ParserErrorCode.INVALID_HEX_ESCAPE, []);
+        reportError10(ParserErrorCode.INVALID_HEX_ESCAPE, []);
       } else {
         builder.appendChar(((Character.digit(firstDigit, 16) << 4) + Character.digit(secondDigit, 16)) as int);
       }
@@ -6500,14 +6562,14 @@
     } else if (currentChar == 0x75) {
       currentIndex++;
       if (currentIndex >= length) {
-        reportError9(ParserErrorCode.INVALID_UNICODE_ESCAPE, []);
+        reportError10(ParserErrorCode.INVALID_UNICODE_ESCAPE, []);
         return length;
       }
       currentChar = lexeme.codeUnitAt(currentIndex);
       if (currentChar == 0x7B) {
         currentIndex++;
         if (currentIndex >= length) {
-          reportError9(ParserErrorCode.INVALID_UNICODE_ESCAPE, []);
+          reportError10(ParserErrorCode.INVALID_UNICODE_ESCAPE, []);
           return length;
         }
         currentChar = lexeme.codeUnitAt(currentIndex);
@@ -6515,7 +6577,7 @@
         int value = 0;
         while (currentChar != 0x7D) {
           if (!isHexDigit(currentChar)) {
-            reportError9(ParserErrorCode.INVALID_UNICODE_ESCAPE, []);
+            reportError10(ParserErrorCode.INVALID_UNICODE_ESCAPE, []);
             currentIndex++;
             while (currentIndex < length && lexeme.codeUnitAt(currentIndex) != 0x7D) {
               currentIndex++;
@@ -6526,19 +6588,19 @@
           value = (value << 4) + Character.digit(currentChar, 16);
           currentIndex++;
           if (currentIndex >= length) {
-            reportError9(ParserErrorCode.INVALID_UNICODE_ESCAPE, []);
+            reportError10(ParserErrorCode.INVALID_UNICODE_ESCAPE, []);
             return length;
           }
           currentChar = lexeme.codeUnitAt(currentIndex);
         }
         if (digitCount < 1 || digitCount > 6) {
-          reportError9(ParserErrorCode.INVALID_UNICODE_ESCAPE, []);
+          reportError10(ParserErrorCode.INVALID_UNICODE_ESCAPE, []);
         }
         appendScalarValue(builder, lexeme.substring(index, currentIndex + 1), value, index, currentIndex);
         return currentIndex + 1;
       } else {
         if (currentIndex + 3 >= length) {
-          reportError9(ParserErrorCode.INVALID_UNICODE_ESCAPE, []);
+          reportError10(ParserErrorCode.INVALID_UNICODE_ESCAPE, []);
           return length;
         }
         int firstDigit = currentChar;
@@ -6546,7 +6608,7 @@
         int thirdDigit = lexeme.codeUnitAt(currentIndex + 2);
         int fourthDigit = lexeme.codeUnitAt(currentIndex + 3);
         if (!isHexDigit(firstDigit) || !isHexDigit(secondDigit) || !isHexDigit(thirdDigit) || !isHexDigit(fourthDigit)) {
-          reportError9(ParserErrorCode.INVALID_UNICODE_ESCAPE, []);
+          reportError10(ParserErrorCode.INVALID_UNICODE_ESCAPE, []);
         } else {
           appendScalarValue(builder, lexeme.substring(index, currentIndex + 1), (((((Character.digit(firstDigit, 16) << 4) + Character.digit(secondDigit, 16)) << 4) + Character.digit(thirdDigit, 16)) << 4) + Character.digit(fourthDigit, 16), index, currentIndex + 3);
         }
@@ -6559,6 +6621,17 @@
   }
 
   /**
+   * Decrements the error reporting lock level. If level is more than `0`, then
+   * [reportError] wont report any error.
+   */
+  void unlockErrorListener() {
+    if (_errorListenerLock == 0) {
+      throw new IllegalStateException("Attempt to unlock not locked error listener.");
+    }
+    _errorListenerLock--;
+  }
+
+  /**
    * Validate that the given parameter list does not contain any field initializers.
    *
    * @param parameterList the parameter list to be validated
@@ -6566,7 +6639,7 @@
   void validateFormalParameterList(FormalParameterList parameterList) {
     for (FormalParameter parameter in parameterList.parameters) {
       if (parameter is FieldFormalParameter) {
-        reportError(ParserErrorCode.FIELD_INITIALIZER_OUTSIDE_CONSTRUCTOR, (parameter as FieldFormalParameter).identifier, []);
+        reportError9(ParserErrorCode.FIELD_INITIALIZER_OUTSIDE_CONSTRUCTOR, (parameter as FieldFormalParameter).identifier, []);
       }
     }
   }
@@ -6580,16 +6653,16 @@
   Token validateModifiersForClass(Modifiers modifiers) {
     validateModifiersForTopLevelDeclaration(modifiers);
     if (modifiers.constKeyword != null) {
-      reportError10(ParserErrorCode.CONST_CLASS, modifiers.constKeyword, []);
+      reportError11(ParserErrorCode.CONST_CLASS, modifiers.constKeyword, []);
     }
     if (modifiers.externalKeyword != null) {
-      reportError10(ParserErrorCode.EXTERNAL_CLASS, modifiers.externalKeyword, []);
+      reportError11(ParserErrorCode.EXTERNAL_CLASS, modifiers.externalKeyword, []);
     }
     if (modifiers.finalKeyword != null) {
-      reportError10(ParserErrorCode.FINAL_CLASS, modifiers.finalKeyword, []);
+      reportError11(ParserErrorCode.FINAL_CLASS, modifiers.finalKeyword, []);
     }
     if (modifiers.varKeyword != null) {
-      reportError10(ParserErrorCode.VAR_CLASS, modifiers.varKeyword, []);
+      reportError11(ParserErrorCode.VAR_CLASS, modifiers.varKeyword, []);
     }
     return modifiers.abstractKeyword;
   }
@@ -6603,25 +6676,25 @@
    */
   Token validateModifiersForConstructor(Modifiers modifiers) {
     if (modifiers.abstractKeyword != null) {
-      reportError9(ParserErrorCode.ABSTRACT_CLASS_MEMBER, []);
+      reportError10(ParserErrorCode.ABSTRACT_CLASS_MEMBER, []);
     }
     if (modifiers.finalKeyword != null) {
-      reportError10(ParserErrorCode.FINAL_CONSTRUCTOR, modifiers.finalKeyword, []);
+      reportError11(ParserErrorCode.FINAL_CONSTRUCTOR, modifiers.finalKeyword, []);
     }
     if (modifiers.staticKeyword != null) {
-      reportError10(ParserErrorCode.STATIC_CONSTRUCTOR, modifiers.staticKeyword, []);
+      reportError11(ParserErrorCode.STATIC_CONSTRUCTOR, modifiers.staticKeyword, []);
     }
     if (modifiers.varKeyword != null) {
-      reportError10(ParserErrorCode.CONSTRUCTOR_WITH_RETURN_TYPE, modifiers.varKeyword, []);
+      reportError11(ParserErrorCode.CONSTRUCTOR_WITH_RETURN_TYPE, modifiers.varKeyword, []);
     }
     Token externalKeyword = modifiers.externalKeyword;
     Token constKeyword = modifiers.constKeyword;
     Token factoryKeyword = modifiers.factoryKeyword;
     if (externalKeyword != null && constKeyword != null && constKeyword.offset < externalKeyword.offset) {
-      reportError10(ParserErrorCode.EXTERNAL_AFTER_CONST, externalKeyword, []);
+      reportError11(ParserErrorCode.EXTERNAL_AFTER_CONST, externalKeyword, []);
     }
     if (externalKeyword != null && factoryKeyword != null && factoryKeyword.offset < externalKeyword.offset) {
-      reportError10(ParserErrorCode.EXTERNAL_AFTER_FACTORY, externalKeyword, []);
+      reportError11(ParserErrorCode.EXTERNAL_AFTER_FACTORY, externalKeyword, []);
     }
     return constKeyword;
   }
@@ -6635,13 +6708,13 @@
    */
   Token validateModifiersForField(Modifiers modifiers) {
     if (modifiers.abstractKeyword != null) {
-      reportError9(ParserErrorCode.ABSTRACT_CLASS_MEMBER, []);
+      reportError10(ParserErrorCode.ABSTRACT_CLASS_MEMBER, []);
     }
     if (modifiers.externalKeyword != null) {
-      reportError10(ParserErrorCode.EXTERNAL_FIELD, modifiers.externalKeyword, []);
+      reportError11(ParserErrorCode.EXTERNAL_FIELD, modifiers.externalKeyword, []);
     }
     if (modifiers.factoryKeyword != null) {
-      reportError10(ParserErrorCode.NON_CONSTRUCTOR_FACTORY, modifiers.factoryKeyword, []);
+      reportError11(ParserErrorCode.NON_CONSTRUCTOR_FACTORY, modifiers.factoryKeyword, []);
     }
     Token staticKeyword = modifiers.staticKeyword;
     Token constKeyword = modifiers.constKeyword;
@@ -6649,23 +6722,23 @@
     Token varKeyword = modifiers.varKeyword;
     if (constKeyword != null) {
       if (finalKeyword != null) {
-        reportError10(ParserErrorCode.CONST_AND_FINAL, finalKeyword, []);
+        reportError11(ParserErrorCode.CONST_AND_FINAL, finalKeyword, []);
       }
       if (varKeyword != null) {
-        reportError10(ParserErrorCode.CONST_AND_VAR, varKeyword, []);
+        reportError11(ParserErrorCode.CONST_AND_VAR, varKeyword, []);
       }
       if (staticKeyword != null && constKeyword.offset < staticKeyword.offset) {
-        reportError10(ParserErrorCode.STATIC_AFTER_CONST, staticKeyword, []);
+        reportError11(ParserErrorCode.STATIC_AFTER_CONST, staticKeyword, []);
       }
     } else if (finalKeyword != null) {
       if (varKeyword != null) {
-        reportError10(ParserErrorCode.FINAL_AND_VAR, varKeyword, []);
+        reportError11(ParserErrorCode.FINAL_AND_VAR, varKeyword, []);
       }
       if (staticKeyword != null && finalKeyword.offset < staticKeyword.offset) {
-        reportError10(ParserErrorCode.STATIC_AFTER_FINAL, staticKeyword, []);
+        reportError11(ParserErrorCode.STATIC_AFTER_FINAL, staticKeyword, []);
       }
     } else if (varKeyword != null && staticKeyword != null && varKeyword.offset < staticKeyword.offset) {
-      reportError10(ParserErrorCode.STATIC_AFTER_VAR, staticKeyword, []);
+      reportError11(ParserErrorCode.STATIC_AFTER_VAR, staticKeyword, []);
     }
     return lexicallyFirst([constKeyword, finalKeyword, varKeyword]);
   }
@@ -6677,7 +6750,7 @@
    */
   void validateModifiersForFunctionDeclarationStatement(Modifiers modifiers) {
     if (modifiers.abstractKeyword != null || modifiers.constKeyword != null || modifiers.externalKeyword != null || modifiers.factoryKeyword != null || modifiers.finalKeyword != null || modifiers.staticKeyword != null || modifiers.varKeyword != null) {
-      reportError9(ParserErrorCode.LOCAL_FUNCTION_DECLARATION_MODIFIER, []);
+      reportError10(ParserErrorCode.LOCAL_FUNCTION_DECLARATION_MODIFIER, []);
     }
   }
 
@@ -6688,24 +6761,24 @@
    */
   void validateModifiersForGetterOrSetterOrMethod(Modifiers modifiers) {
     if (modifiers.abstractKeyword != null) {
-      reportError9(ParserErrorCode.ABSTRACT_CLASS_MEMBER, []);
+      reportError10(ParserErrorCode.ABSTRACT_CLASS_MEMBER, []);
     }
     if (modifiers.constKeyword != null) {
-      reportError10(ParserErrorCode.CONST_METHOD, modifiers.constKeyword, []);
+      reportError11(ParserErrorCode.CONST_METHOD, modifiers.constKeyword, []);
     }
     if (modifiers.factoryKeyword != null) {
-      reportError10(ParserErrorCode.NON_CONSTRUCTOR_FACTORY, modifiers.factoryKeyword, []);
+      reportError11(ParserErrorCode.NON_CONSTRUCTOR_FACTORY, modifiers.factoryKeyword, []);
     }
     if (modifiers.finalKeyword != null) {
-      reportError10(ParserErrorCode.FINAL_METHOD, modifiers.finalKeyword, []);
+      reportError11(ParserErrorCode.FINAL_METHOD, modifiers.finalKeyword, []);
     }
     if (modifiers.varKeyword != null) {
-      reportError10(ParserErrorCode.VAR_RETURN_TYPE, modifiers.varKeyword, []);
+      reportError11(ParserErrorCode.VAR_RETURN_TYPE, modifiers.varKeyword, []);
     }
     Token externalKeyword = modifiers.externalKeyword;
     Token staticKeyword = modifiers.staticKeyword;
     if (externalKeyword != null && staticKeyword != null && staticKeyword.offset < externalKeyword.offset) {
-      reportError10(ParserErrorCode.EXTERNAL_AFTER_STATIC, externalKeyword, []);
+      reportError11(ParserErrorCode.EXTERNAL_AFTER_STATIC, externalKeyword, []);
     }
   }
 
@@ -6716,22 +6789,22 @@
    */
   void validateModifiersForOperator(Modifiers modifiers) {
     if (modifiers.abstractKeyword != null) {
-      reportError9(ParserErrorCode.ABSTRACT_CLASS_MEMBER, []);
+      reportError10(ParserErrorCode.ABSTRACT_CLASS_MEMBER, []);
     }
     if (modifiers.constKeyword != null) {
-      reportError10(ParserErrorCode.CONST_METHOD, modifiers.constKeyword, []);
+      reportError11(ParserErrorCode.CONST_METHOD, modifiers.constKeyword, []);
     }
     if (modifiers.factoryKeyword != null) {
-      reportError10(ParserErrorCode.NON_CONSTRUCTOR_FACTORY, modifiers.factoryKeyword, []);
+      reportError11(ParserErrorCode.NON_CONSTRUCTOR_FACTORY, modifiers.factoryKeyword, []);
     }
     if (modifiers.finalKeyword != null) {
-      reportError10(ParserErrorCode.FINAL_METHOD, modifiers.finalKeyword, []);
+      reportError11(ParserErrorCode.FINAL_METHOD, modifiers.finalKeyword, []);
     }
     if (modifiers.staticKeyword != null) {
-      reportError10(ParserErrorCode.STATIC_OPERATOR, modifiers.staticKeyword, []);
+      reportError11(ParserErrorCode.STATIC_OPERATOR, modifiers.staticKeyword, []);
     }
     if (modifiers.varKeyword != null) {
-      reportError10(ParserErrorCode.VAR_RETURN_TYPE, modifiers.varKeyword, []);
+      reportError11(ParserErrorCode.VAR_RETURN_TYPE, modifiers.varKeyword, []);
     }
   }
 
@@ -6742,10 +6815,10 @@
    */
   void validateModifiersForTopLevelDeclaration(Modifiers modifiers) {
     if (modifiers.factoryKeyword != null) {
-      reportError10(ParserErrorCode.FACTORY_TOP_LEVEL_DECLARATION, modifiers.factoryKeyword, []);
+      reportError11(ParserErrorCode.FACTORY_TOP_LEVEL_DECLARATION, modifiers.factoryKeyword, []);
     }
     if (modifiers.staticKeyword != null) {
-      reportError10(ParserErrorCode.STATIC_TOP_LEVEL_DECLARATION, modifiers.staticKeyword, []);
+      reportError11(ParserErrorCode.STATIC_TOP_LEVEL_DECLARATION, modifiers.staticKeyword, []);
     }
   }
 
@@ -6757,16 +6830,16 @@
   void validateModifiersForTopLevelFunction(Modifiers modifiers) {
     validateModifiersForTopLevelDeclaration(modifiers);
     if (modifiers.abstractKeyword != null) {
-      reportError9(ParserErrorCode.ABSTRACT_TOP_LEVEL_FUNCTION, []);
+      reportError10(ParserErrorCode.ABSTRACT_TOP_LEVEL_FUNCTION, []);
     }
     if (modifiers.constKeyword != null) {
-      reportError10(ParserErrorCode.CONST_CLASS, modifiers.constKeyword, []);
+      reportError11(ParserErrorCode.CONST_CLASS, modifiers.constKeyword, []);
     }
     if (modifiers.finalKeyword != null) {
-      reportError10(ParserErrorCode.FINAL_CLASS, modifiers.finalKeyword, []);
+      reportError11(ParserErrorCode.FINAL_CLASS, modifiers.finalKeyword, []);
     }
     if (modifiers.varKeyword != null) {
-      reportError10(ParserErrorCode.VAR_RETURN_TYPE, modifiers.varKeyword, []);
+      reportError11(ParserErrorCode.VAR_RETURN_TYPE, modifiers.varKeyword, []);
     }
   }
 
@@ -6780,24 +6853,24 @@
   Token validateModifiersForTopLevelVariable(Modifiers modifiers) {
     validateModifiersForTopLevelDeclaration(modifiers);
     if (modifiers.abstractKeyword != null) {
-      reportError9(ParserErrorCode.ABSTRACT_TOP_LEVEL_VARIABLE, []);
+      reportError10(ParserErrorCode.ABSTRACT_TOP_LEVEL_VARIABLE, []);
     }
     if (modifiers.externalKeyword != null) {
-      reportError10(ParserErrorCode.EXTERNAL_FIELD, modifiers.externalKeyword, []);
+      reportError11(ParserErrorCode.EXTERNAL_FIELD, modifiers.externalKeyword, []);
     }
     Token constKeyword = modifiers.constKeyword;
     Token finalKeyword = modifiers.finalKeyword;
     Token varKeyword = modifiers.varKeyword;
     if (constKeyword != null) {
       if (finalKeyword != null) {
-        reportError10(ParserErrorCode.CONST_AND_FINAL, finalKeyword, []);
+        reportError11(ParserErrorCode.CONST_AND_FINAL, finalKeyword, []);
       }
       if (varKeyword != null) {
-        reportError10(ParserErrorCode.CONST_AND_VAR, varKeyword, []);
+        reportError11(ParserErrorCode.CONST_AND_VAR, varKeyword, []);
       }
     } else if (finalKeyword != null) {
       if (varKeyword != null) {
-        reportError10(ParserErrorCode.FINAL_AND_VAR, varKeyword, []);
+        reportError11(ParserErrorCode.FINAL_AND_VAR, varKeyword, []);
       }
     }
     return lexicallyFirst([constKeyword, finalKeyword, varKeyword]);
@@ -6812,19 +6885,19 @@
   void validateModifiersForTypedef(Modifiers modifiers) {
     validateModifiersForTopLevelDeclaration(modifiers);
     if (modifiers.abstractKeyword != null) {
-      reportError10(ParserErrorCode.ABSTRACT_TYPEDEF, modifiers.abstractKeyword, []);
+      reportError11(ParserErrorCode.ABSTRACT_TYPEDEF, modifiers.abstractKeyword, []);
     }
     if (modifiers.constKeyword != null) {
-      reportError10(ParserErrorCode.CONST_TYPEDEF, modifiers.constKeyword, []);
+      reportError11(ParserErrorCode.CONST_TYPEDEF, modifiers.constKeyword, []);
     }
     if (modifiers.externalKeyword != null) {
-      reportError10(ParserErrorCode.EXTERNAL_TYPEDEF, modifiers.externalKeyword, []);
+      reportError11(ParserErrorCode.EXTERNAL_TYPEDEF, modifiers.externalKeyword, []);
     }
     if (modifiers.finalKeyword != null) {
-      reportError10(ParserErrorCode.FINAL_TYPEDEF, modifiers.finalKeyword, []);
+      reportError11(ParserErrorCode.FINAL_TYPEDEF, modifiers.finalKeyword, []);
     }
     if (modifiers.varKeyword != null) {
-      reportError10(ParserErrorCode.VAR_TYPEDEF, modifiers.varKeyword, []);
+      reportError11(ParserErrorCode.VAR_TYPEDEF, modifiers.varKeyword, []);
     }
   }
 }
diff --git a/pkg/analyzer/lib/src/generated/resolver.dart b/pkg/analyzer/lib/src/generated/resolver.dart
index c9f6551..021db55 100644
--- a/pkg/analyzer/lib/src/generated/resolver.dart
+++ b/pkg/analyzer/lib/src/generated/resolver.dart
@@ -239,12 +239,6 @@
 
   Object visitDefaultFormalParameter(DefaultFormalParameter node) {
     ElementHolder holder = new ElementHolder();
-    visit(holder, node.defaultValue);
-    FunctionElementImpl initializer = new FunctionElementImpl();
-    initializer.functions = holder.functions;
-    initializer.labels = holder.labels;
-    initializer.localVariables = holder.localVariables;
-    initializer.parameters = holder.parameters;
     SimpleIdentifier parameterName = node.parameter.identifier;
     ParameterElementImpl parameter;
     if (node.parameter is FieldFormalParameter) {
@@ -254,10 +248,17 @@
     }
     parameter.const3 = node.isConst;
     parameter.final2 = node.isFinal;
-    parameter.initializer = initializer;
     parameter.parameterKind = node.kind;
     Expression defaultValue = node.defaultValue;
     if (defaultValue != null) {
+      visit(holder, defaultValue);
+      FunctionElementImpl initializer = new FunctionElementImpl.con2(defaultValue.beginToken.offset);
+      initializer.functions = holder.functions;
+      initializer.labels = holder.labels;
+      initializer.localVariables = holder.localVariables;
+      initializer.parameters = holder.parameters;
+      initializer.synthetic = true;
+      parameter.initializer = initializer;
       parameter.setDefaultValueRange(defaultValue.offset, defaultValue.length);
     }
     setParameterVisibleRange(node, parameter);
@@ -623,7 +624,7 @@
       } finally {
         _inFieldContext = wasInFieldContext;
       }
-      FunctionElementImpl initializer = new FunctionElementImpl();
+      FunctionElementImpl initializer = new FunctionElementImpl.con2(node.initializer.beginToken.offset);
       initializer.functions = holder.functions;
       initializer.labels = holder.labels;
       initializer.localVariables = holder.localVariables;
@@ -1119,7 +1120,7 @@
   /**
    * The error listener to which errors will be reported.
    */
-  RecordingErrorListener errorListener;
+  RecordingErrorListener _errorListener;
 
   /**
    * The modification time of the source for which an element is being built.
@@ -1150,7 +1151,7 @@
   /**
    * A set of the libraries that were resolved while resolving the HTML unit.
    */
-  final Set<Library> resolvedLibraries = new Set<Library>();
+  Set<Library> _resolvedLibraries = new Set<Library>();
 
   /**
    * Initialize a newly created HTML unit builder.
@@ -1159,7 +1160,7 @@
    */
   HtmlUnitBuilder(InternalAnalysisContext context) {
     this._context = context;
-    this.errorListener = new RecordingErrorListener();
+    this._errorListener = new RecordingErrorListener();
   }
 
   /**
@@ -1192,6 +1193,20 @@
     return result;
   }
 
+  /**
+   * Return the listener to which analysis errors will be reported.
+   *
+   * @return the listener to which analysis errors will be reported
+   */
+  RecordingErrorListener get errorListener => _errorListener;
+
+  /**
+   * Return an array containing information about all of the libraries that were resolved.
+   *
+   * @return an array containing the libraries that were resolved
+   */
+  Set<Library> get resolvedLibraries => _resolvedLibraries;
+
   Object visitHtmlScriptTagNode(ht.HtmlScriptTagNode node) {
     if (_parentNodes.contains(node)) {
       return reportCircularity(node);
@@ -1207,8 +1222,8 @@
           LibraryResolver resolver = new LibraryResolver(_context);
           LibraryElementImpl library = resolver.resolveEmbeddedLibrary(htmlSource, _modificationStamp, node.script, true) as LibraryElementImpl;
           script.scriptLibrary = library;
-          resolvedLibraries.addAll(resolver.resolvedLibraries);
-          errorListener.addAll(resolver.errorListener);
+          _resolvedLibraries.addAll(resolver.resolvedLibraries);
+          _errorListener.addAll(resolver.errorListener);
         } on AnalysisException catch (exception) {
           AnalysisEngine.instance.logger.logError3(exception);
         }
@@ -1322,7 +1337,7 @@
    * @param arguments the arguments used to compose the error message
    */
   void reportError(ErrorCode errorCode, int offset, int length, List<Object> arguments) {
-    errorListener.onError(new AnalysisError.con2(_htmlElement.source, offset, length, errorCode, arguments));
+    _errorListener.onError(new AnalysisError.con2(_htmlElement.source, offset, length, errorCode, arguments));
   }
 
   /**
@@ -2538,6 +2553,55 @@
 }
 
 /**
+ * Instances of the class `ReturnDetector` determine whether the visited AST node is
+ * guaranteed (modulo exceptions) to terminate by executing a return statement.
+ */
+class ReturnDetector extends UnifyingASTVisitor<bool> {
+  bool visitBlock(Block node) => visitStatements(node.statements);
+
+  bool visitBlockFunctionBody(BlockFunctionBody node) => node.block.accept(this);
+
+  bool visitIfStatement(IfStatement node) {
+    Statement thenStatement = node.thenStatement;
+    Statement elseStatement = node.elseStatement;
+    if (thenStatement == null || elseStatement == null) {
+      return false;
+    }
+    return thenStatement.accept(this) && elseStatement.accept(this);
+  }
+
+  bool visitNode(ASTNode node) => false;
+
+  bool visitReturnStatement(ReturnStatement node) => true;
+
+  bool visitSwitchCase(SwitchCase node) => visitStatements(node.statements);
+
+  bool visitSwitchDefault(SwitchDefault node) => visitStatements(node.statements);
+
+  bool visitSwitchStatement(SwitchStatement node) {
+    bool hasDefault = false;
+    for (SwitchMember member in node.members) {
+      if (!member.accept(this)) {
+        return false;
+      }
+      if (member is SwitchDefault) {
+        hasDefault = true;
+      }
+    }
+    return hasDefault;
+  }
+
+  bool visitStatements(NodeList<Statement> statements) {
+    for (int i = statements.length - 1; i >= 0; i--) {
+      if (statements[i].accept(this)) {
+        return true;
+      }
+    }
+    return false;
+  }
+}
+
+/**
  * Instances of the class `ToDoFinder` find to-do comments in Dart code.
  */
 class ToDoFinder {
@@ -5866,16 +5930,14 @@
   /**
    * The name of the synthetic identifier.
    */
-  String _name;
+  final String name;
 
   /**
    * Initialize a newly created synthetic identifier to have the given name.
    *
    * @param name the name of the synthetic identifier
    */
-  ElementResolver_SyntheticIdentifier(String name) {
-    this._name = name;
-  }
+  ElementResolver_SyntheticIdentifier(this.name);
 
   accept(ASTVisitor visitor) => null;
 
@@ -5885,8 +5947,6 @@
 
   sc.Token get endToken => null;
 
-  String get name => _name;
-
   int get precedence => 16;
 
   Element get propagatedElement => null;
@@ -6575,7 +6635,7 @@
   /**
    * The source specifying the defining compilation unit of this library.
    */
-  Source librarySource;
+  final Source librarySource;
 
   /**
    * The library element representing this library.
@@ -6585,7 +6645,7 @@
   /**
    * A list containing all of the libraries that are imported into this library.
    */
-  List<Library> imports = _EMPTY_ARRAY;
+  List<Library> _importedLibraries = _EMPTY_ARRAY;
 
   /**
    * A table mapping URI-based directive to the actual URI value.
@@ -6600,7 +6660,7 @@
   /**
    * A list containing all of the libraries that are exported from this library.
    */
-  List<Library> exports = _EMPTY_ARRAY;
+  List<Library> _exportedLibraries = _EMPTY_ARRAY;
 
   /**
    * A table mapping the sources for the compilation units in this library to their corresponding
@@ -6619,16 +6679,20 @@
   static List<Library> _EMPTY_ARRAY = new List<Library>(0);
 
   /**
+   * The prefix of a URI using the dart-ext scheme to reference a native code library.
+   */
+  static String _DART_EXT_SCHEME = "dart-ext:";
+
+  /**
    * Initialize a newly created data holder that can maintain the data associated with a library.
    *
    * @param analysisContext the analysis context in which this library is being analyzed
    * @param errorListener the listener to which analysis errors will be reported
    * @param librarySource the source specifying the defining compilation unit of this library
    */
-  Library(InternalAnalysisContext analysisContext, AnalysisErrorListener errorListener, Source librarySource) {
+  Library(InternalAnalysisContext analysisContext, AnalysisErrorListener errorListener, this.librarySource) {
     this._analysisContext = analysisContext;
     this._errorListener = errorListener;
-    this.librarySource = librarySource;
     this._libraryElement = analysisContext.getLibraryElement(librarySource) as LibraryElementImpl;
   }
 
@@ -6684,6 +6748,20 @@
   CompilationUnit get definingCompilationUnit => getAST(librarySource);
 
   /**
+   * Return an array containing the libraries that are exported from this library.
+   *
+   * @return an array containing the libraries that are exported from this library
+   */
+  List<Library> get exports => _exportedLibraries;
+
+  /**
+   * Return an array containing the libraries that are imported into this library.
+   *
+   * @return an array containing the libraries that are imported into this library
+   */
+  List<Library> get imports => _importedLibraries;
+
+  /**
    * Return an array containing the libraries that are either imported or exported from this
    * library.
    *
@@ -6691,10 +6769,10 @@
    */
   List<Library> get importsAndExports {
     Set<Library> libraries = new Set<Library>();
-    for (Library library in imports) {
+    for (Library library in _importedLibraries) {
       libraries.add(library);
     }
-    for (Library library in exports) {
+    for (Library library in _exportedLibraries) {
       libraries.add(library);
     }
     return new List.from(libraries);
@@ -6773,6 +6851,20 @@
     String uriContent = uriLiteral.stringValue.trim();
     _directiveUris[directive] = uriContent;
     uriContent = Uri.encodeFull(uriContent);
+    if (directive is ImportDirective && uriContent.startsWith(_DART_EXT_SCHEME)) {
+      String uriBase = uriContent.substring(_DART_EXT_SCHEME.length);
+      Source source = _analysisContext.sourceFactory.resolveUri(librarySource, "${uriBase}.dll");
+      if (source == null || !source.exists()) {
+        source = _analysisContext.sourceFactory.resolveUri(librarySource, "${uriBase}.so");
+        if (source == null || !source.exists()) {
+          source = _analysisContext.sourceFactory.resolveUri(librarySource, "${uriBase}.dylib");
+          if (source == null || !source.exists()) {
+            _errorListener.onError(new AnalysisError.con2(librarySource, uriLiteral.offset, uriLiteral.length, CompileTimeErrorCode.URI_DOES_NOT_EXIST, [uriContent]));
+          }
+        }
+      }
+      return null;
+    }
     try {
       parseUriWithException(uriContent);
       Source source = _analysisContext.sourceFactory.resolveUri(librarySource, uriContent);
@@ -6809,7 +6901,7 @@
    * @param exportedLibraries the libraries that are exported by this library
    */
   void set exportedLibraries(List<Library> exportedLibraries) {
-    this.exports = exportedLibraries;
+    this._exportedLibraries = exportedLibraries;
   }
 
   /**
@@ -6818,7 +6910,7 @@
    * @param importedLibraries the libraries that are imported into this library
    */
   void set importedLibraries(List<Library> importedLibraries) {
-    this.imports = importedLibraries;
+    this._importedLibraries = importedLibraries;
   }
 
   /**
@@ -7034,14 +7126,14 @@
   /**
    * The analysis context in which the libraries are being analyzed.
    */
-  InternalAnalysisContext analysisContext;
+  final InternalAnalysisContext analysisContext;
 
   /**
    * The listener to which analysis errors will be reported, this error listener is either
    * references [recordingErrorListener], or it unions the passed
    * [AnalysisErrorListener] with the [recordingErrorListener].
    */
-  RecordingErrorListener errorListener;
+  RecordingErrorListener _errorListener;
 
   /**
    * A source object representing the core library (dart:core).
@@ -7066,20 +7158,33 @@
   /**
    * A collection containing the libraries that are being resolved together.
    */
-  Set<Library> resolvedLibraries;
+  Set<Library> _librariesInCycles;
 
   /**
    * Initialize a newly created library resolver to resolve libraries within the given context.
    *
    * @param analysisContext the analysis context in which the library is being analyzed
    */
-  LibraryResolver(InternalAnalysisContext analysisContext) {
-    this.analysisContext = analysisContext;
-    this.errorListener = new RecordingErrorListener();
+  LibraryResolver(this.analysisContext) {
+    this._errorListener = new RecordingErrorListener();
     _coreLibrarySource = analysisContext.sourceFactory.forUri(DartSdk.DART_CORE);
   }
 
   /**
+   * Return the listener to which analysis errors will be reported.
+   *
+   * @return the listener to which analysis errors will be reported
+   */
+  RecordingErrorListener get errorListener => _errorListener;
+
+  /**
+   * Return an array containing information about all of the libraries that were resolved.
+   *
+   * @return an array containing the libraries that were resolved
+   */
+  Set<Library> get resolvedLibraries => _librariesInCycles;
+
+  /**
    * Resolve the library specified by the given source in the given context. The library is assumed
    * to be embedded in the given source.
    *
@@ -7104,7 +7209,7 @@
       }
       instrumentation.metric3("createLibrary", "complete");
       computeLibraryDependencies2(targetLibrary, unit);
-      resolvedLibraries = computeLibrariesInCycles(targetLibrary);
+      _librariesInCycles = computeLibrariesInCycles(targetLibrary);
       buildElementModels();
       instrumentation.metric3("buildElementModels", "complete");
       LibraryElement coreElement = _coreLibrary.libraryElement;
@@ -7154,7 +7259,7 @@
       }
       instrumentation.metric3("createLibrary", "complete");
       computeLibraryDependencies(targetLibrary);
-      resolvedLibraries = computeLibrariesInCycles(targetLibrary);
+      _librariesInCycles = computeLibrariesInCycles(targetLibrary);
       buildElementModels();
       instrumentation.metric3("buildElementModels", "complete");
       LibraryElement coreElement = _coreLibrary.libraryElement;
@@ -7170,8 +7275,8 @@
       instrumentation.metric3("resolveReferencesAndTypes", "complete");
       performConstantEvaluation();
       instrumentation.metric3("performConstantEvaluation", "complete");
-      instrumentation.metric2("librariesInCycles", resolvedLibraries.length);
-      for (Library lib in resolvedLibraries) {
+      instrumentation.metric2("librariesInCycles", _librariesInCycles.length);
+      for (Library lib in _librariesInCycles) {
         instrumentation.metric2("librariesInCycles-CompilationUnitSources-Size", lib.compilationUnitSources.length);
       }
       return targetLibrary.libraryElement;
@@ -7270,7 +7375,7 @@
    *           be accessed
    */
   void buildDirectiveModels() {
-    for (Library library in resolvedLibraries) {
+    for (Library library in _librariesInCycles) {
       Map<String, PrefixElementImpl> nameToPrefixMap = new Map<String, PrefixElementImpl>();
       List<ImportElement> imports = new List<ImportElement>();
       List<ExportElement> exports = new List<ExportElement>();
@@ -7308,7 +7413,7 @@
               directive.element = importElement;
               imports.add(importElement);
               if (analysisContext.computeKindOf(importedSource) != SourceKind.LIBRARY) {
-                errorListener.onError(new AnalysisError.con2(library.librarySource, uriLiteral.offset, uriLiteral.length, CompileTimeErrorCode.IMPORT_OF_NON_LIBRARY, [uriLiteral.toSource()]));
+                _errorListener.onError(new AnalysisError.con2(library.librarySource, uriLiteral.offset, uriLiteral.length, CompileTimeErrorCode.IMPORT_OF_NON_LIBRARY, [uriLiteral.toSource()]));
               }
             }
           }
@@ -7329,7 +7434,7 @@
               exports.add(exportElement);
               if (analysisContext.computeKindOf(exportedSource) != SourceKind.LIBRARY) {
                 StringLiteral uriLiteral = exportDirective.uri;
-                errorListener.onError(new AnalysisError.con2(library.librarySource, uriLiteral.offset, uriLiteral.length, CompileTimeErrorCode.EXPORT_OF_NON_LIBRARY, [uriLiteral.toSource()]));
+                _errorListener.onError(new AnalysisError.con2(library.librarySource, uriLiteral.offset, uriLiteral.length, CompileTimeErrorCode.EXPORT_OF_NON_LIBRARY, [uriLiteral.toSource()]));
               }
             }
           }
@@ -7354,7 +7459,7 @@
    * @throws AnalysisException if any of the element models cannot be built
    */
   void buildElementModels() {
-    for (Library library in resolvedLibraries) {
+    for (Library library in _librariesInCycles) {
       LibraryElementBuilder builder = new LibraryElementBuilder(this);
       LibraryElementImpl libraryElement = builder.buildLibrary(library);
       library.libraryElement = libraryElement;
@@ -7370,7 +7475,7 @@
   void buildTypeHierarchies() {
     TimeCounter_TimeCounterHandle timeCounter = PerformanceStatistics.resolve.start();
     try {
-      for (Library library in resolvedLibraries) {
+      for (Library library in _librariesInCycles) {
         for (Source source in library.compilationUnitSources) {
           TypeResolverVisitor visitor = new TypeResolverVisitor.con1(library, source, _typeProvider);
           library.getAST(source).accept(visitor);
@@ -7515,7 +7620,7 @@
    * @throws AnalysisException if the library source is not valid
    */
   Library createLibrary(Source librarySource) {
-    Library library = new Library(analysisContext, errorListener, librarySource);
+    Library library = new Library(analysisContext, _errorListener, librarySource);
     library.definingCompilationUnit;
     _libraryMap[librarySource] = library;
     return library;
@@ -7533,7 +7638,7 @@
    * @throws AnalysisException if the library source is not valid
    */
   Library createLibrary2(Source librarySource, int modificationStamp, CompilationUnit unit) {
-    Library library = new Library(analysisContext, errorListener, librarySource);
+    Library library = new Library(analysisContext, _errorListener, librarySource);
     library.setDefiningCompilationUnit(modificationStamp, unit);
     _libraryMap[librarySource] = library;
     return library;
@@ -7551,7 +7656,7 @@
     if (!librarySource.exists()) {
       return null;
     }
-    Library library = new Library(analysisContext, errorListener, librarySource);
+    Library library = new Library(analysisContext, _errorListener, librarySource);
     _libraryMap[librarySource] = library;
     return library;
   }
@@ -7578,7 +7683,7 @@
     TimeCounter_TimeCounterHandle timeCounter = PerformanceStatistics.resolve.start();
     try {
       ConstantValueComputer computer = new ConstantValueComputer();
-      for (Library library in resolvedLibraries) {
+      for (Library library in _librariesInCycles) {
         for (Source source in library.compilationUnitSources) {
           try {
             CompilationUnit unit = library.getAST(source);
@@ -7603,7 +7708,7 @@
    *           libraries could not have their types analyzed
    */
   void resolveReferencesAndTypes() {
-    for (Library library in resolvedLibraries) {
+    for (Library library in _librariesInCycles) {
       resolveReferencesAndTypes2(library);
     }
   }
@@ -7664,7 +7769,7 @@
   /**
    * The current size of this map.
    */
-  int size = 0;
+  int _size = 0;
 
   /**
    * The array of keys.
@@ -7694,12 +7799,12 @@
    * Copy constructor.
    */
   MemberMap.con2(MemberMap memberMap) {
-    initArrays(memberMap.size + 5);
-    for (int i = 0; i < memberMap.size; i++) {
+    initArrays(memberMap._size + 5);
+    for (int i = 0; i < memberMap._size; i++) {
       _keys[i] = memberMap._keys[i];
       _values[i] = memberMap._values[i];
     }
-    size = memberMap.size;
+    _size = memberMap._size;
   }
 
   /**
@@ -7711,7 +7816,7 @@
    *         map, `null` is returned
    */
   ExecutableElement get(String key) {
-    for (int i = 0; i < size; i++) {
+    for (int i = 0; i < _size; i++) {
       if (_keys[i] != null && _keys[i] == key) {
         return _values[i];
       }
@@ -7731,6 +7836,13 @@
   String getKey(int i) => _keys[i];
 
   /**
+   * The size of the map.
+   *
+   * @return the size of the map.
+   */
+  int get size => _size;
+
+  /**
    * Get and return the ExecutableElement at the specified location. If the key/value pair has been
    * removed from the set, then then `null` is returned.
    *
@@ -7749,28 +7861,28 @@
    * @param value the ExecutableElement value to store in the map
    */
   void put(String key, ExecutableElement value) {
-    for (int i = 0; i < size; i++) {
+    for (int i = 0; i < _size; i++) {
       if (_keys[i] != null && _keys[i] == key) {
         _values[i] = value;
         return;
       }
     }
-    if (size == _keys.length) {
-      int newArrayLength = size * 2;
+    if (_size == _keys.length) {
+      int newArrayLength = _size * 2;
       List<String> keys_new_array = new List<String>(newArrayLength);
       List<ExecutableElement> values_new_array = new List<ExecutableElement>(newArrayLength);
-      for (int i = 0; i < size; i++) {
+      for (int i = 0; i < _size; i++) {
         keys_new_array[i] = _keys[i];
       }
-      for (int i = 0; i < size; i++) {
+      for (int i = 0; i < _size; i++) {
         values_new_array[i] = _values[i];
       }
       _keys = keys_new_array;
       _values = values_new_array;
     }
-    _keys[size] = key;
-    _values[size] = value;
-    size++;
+    _keys[_size] = key;
+    _values[_size] = value;
+    _size++;
   }
 
   /**
@@ -7781,7 +7893,7 @@
    * @param key the key of the key/value pair to remove from the map
    */
   void remove(String key) {
-    for (int i = 0; i < size; i++) {
+    for (int i = 0; i < _size; i++) {
       if (_keys[i] == key) {
         _keys[i] = null;
         _values[i] = null;
@@ -7836,7 +7948,7 @@
   /**
    * The conditional analysis error.
    */
-  AnalysisError analysisError;
+  final AnalysisError analysisError;
 
   /**
    * Instantiate a new ProxyConditionalErrorCode with some enclosing element and the conditional
@@ -7845,9 +7957,8 @@
    * @param enclosingElement the enclosing element
    * @param analysisError the conditional analysis error
    */
-  ProxyConditionalAnalysisError(Element enclosingElement, AnalysisError analysisError) {
+  ProxyConditionalAnalysisError(Element enclosingElement, this.analysisError) {
     this._enclosingElement = enclosingElement;
-    this.analysisError = analysisError;
   }
 
   /**
@@ -7884,28 +7995,28 @@
    * The class element representing the class containing the current node, or `null` if the
    * current node is not contained in a class.
    */
-  ClassElement enclosingClass = null;
+  ClassElement _enclosingClass = null;
 
   /**
    * The element representing the function containing the current node, or `null` if the
    * current node is not contained in a function.
    */
-  ExecutableElement enclosingFunction = null;
+  ExecutableElement _enclosingFunction = null;
 
   /**
    * The object keeping track of which elements have had their types overridden.
    */
-  final TypeOverrideManager overrideManager = new TypeOverrideManager();
+  TypeOverrideManager _overrideManager = new TypeOverrideManager();
 
   /**
    * The object keeping track of which elements have had their types promoted.
    */
-  final TypePromotionManager promoteManager = new TypePromotionManager();
+  TypePromotionManager _promoteManager = new TypePromotionManager();
 
   /**
    * Proxy conditional error codes.
    */
-  final List<ProxyConditionalAnalysisError> proxyConditionalAnalysisErrors = new List<ProxyConditionalAnalysisError>();
+  List<ProxyConditionalAnalysisError> _proxyConditionalAnalysisErrors = new List<ProxyConditionalAnalysisError>();
 
   /**
    * Initialize a newly created visitor to resolve the nodes in a compilation unit.
@@ -7952,6 +8063,22 @@
     this._typeAnalyzer = new StaticTypeAnalyzer(this);
   }
 
+  /**
+   * Return the object keeping track of which elements have had their types overridden.
+   *
+   * @return the object keeping track of which elements have had their types overridden
+   */
+  TypeOverrideManager get overrideManager => _overrideManager;
+
+  /**
+   * Return the object keeping track of which elements have had their types promoted.
+   *
+   * @return the object keeping track of which elements have had their types promoted
+   */
+  TypePromotionManager get promoteManager => _promoteManager;
+
+  List<ProxyConditionalAnalysisError> get proxyConditionalAnalysisErrors => _proxyConditionalAnalysisErrors;
+
   Object visitAsExpression(AsExpression node) {
     super.visitAsExpression(node);
     override(node.expression, node.type.type);
@@ -7972,8 +8099,8 @@
       safelyVisit(leftOperand);
       if (rightOperand != null) {
         try {
-          overrideManager.enterScope();
-          promoteManager.enterScope();
+          _overrideManager.enterScope();
+          _promoteManager.enterScope();
           propagateTrueState(leftOperand);
           promoteTypes(leftOperand);
           clearTypePromotionsIfPotentiallyMutatedIn(leftOperand);
@@ -7981,19 +8108,19 @@
           clearTypePromotionsIfAccessedInClosureAndProtentiallyMutated(rightOperand);
           rightOperand.accept(this);
         } finally {
-          overrideManager.exitScope();
-          promoteManager.exitScope();
+          _overrideManager.exitScope();
+          _promoteManager.exitScope();
         }
       }
     } else if (identical(operatorType, sc.TokenType.BAR_BAR)) {
       safelyVisit(leftOperand);
       if (rightOperand != null) {
         try {
-          overrideManager.enterScope();
+          _overrideManager.enterScope();
           propagateFalseState(leftOperand);
           rightOperand.accept(this);
         } finally {
-          overrideManager.exitScope();
+          _overrideManager.exitScope();
         }
       }
     } else {
@@ -8007,10 +8134,10 @@
 
   Object visitBlockFunctionBody(BlockFunctionBody node) {
     try {
-      overrideManager.enterScope();
+      _overrideManager.enterScope();
       super.visitBlockFunctionBody(node);
     } finally {
-      overrideManager.exitScope();
+      _overrideManager.exitScope();
     }
     return null;
   }
@@ -8022,14 +8149,14 @@
   }
 
   Object visitClassDeclaration(ClassDeclaration node) {
-    ClassElement outerType = enclosingClass;
+    ClassElement outerType = _enclosingClass;
     try {
-      enclosingClass = node.element;
-      _typeAnalyzer.thisType = enclosingClass == null ? null : enclosingClass.type;
+      _enclosingClass = node.element;
+      _typeAnalyzer.thisType = _enclosingClass == null ? null : _enclosingClass.type;
       super.visitClassDeclaration(node);
     } finally {
       _typeAnalyzer.thisType = outerType == null ? null : outerType.type;
-      enclosingClass = outerType;
+      _enclosingClass = outerType;
     }
     return null;
   }
@@ -8042,7 +8169,7 @@
 
   Object visitCompilationUnit(CompilationUnit node) {
     try {
-      overrideManager.enterScope();
+      _overrideManager.enterScope();
       NodeList<Directive> directives = node.directives;
       int directiveCount = directives.length;
       for (int i = 0; i < directiveCount; i++) {
@@ -8063,7 +8190,7 @@
         }
       }
     } finally {
-      overrideManager.exitScope();
+      _overrideManager.exitScope();
     }
     node.accept(_elementResolver);
     node.accept(_typeAnalyzer);
@@ -8076,26 +8203,26 @@
     Expression thenExpression = node.thenExpression;
     if (thenExpression != null) {
       try {
-        overrideManager.enterScope();
-        promoteManager.enterScope();
+        _overrideManager.enterScope();
+        _promoteManager.enterScope();
         propagateTrueState(condition);
         promoteTypes(condition);
         clearTypePromotionsIfPotentiallyMutatedIn(thenExpression);
         clearTypePromotionsIfAccessedInClosureAndProtentiallyMutated(thenExpression);
         thenExpression.accept(this);
       } finally {
-        overrideManager.exitScope();
-        promoteManager.exitScope();
+        _overrideManager.exitScope();
+        _promoteManager.exitScope();
       }
     }
     Expression elseExpression = node.elseExpression;
     if (elseExpression != null) {
       try {
-        overrideManager.enterScope();
+        _overrideManager.enterScope();
         propagateFalseState(condition);
         elseExpression.accept(this);
       } finally {
-        overrideManager.exitScope();
+        _overrideManager.exitScope();
       }
     }
     node.accept(_elementResolver);
@@ -8113,12 +8240,12 @@
   }
 
   Object visitConstructorDeclaration(ConstructorDeclaration node) {
-    ExecutableElement outerFunction = enclosingFunction;
+    ExecutableElement outerFunction = _enclosingFunction;
     try {
-      enclosingFunction = node.element;
+      _enclosingFunction = node.element;
       super.visitConstructorDeclaration(node);
     } finally {
-      enclosingFunction = outerFunction;
+      _enclosingFunction = outerFunction;
     }
     return null;
   }
@@ -8144,77 +8271,77 @@
 
   Object visitDoStatement(DoStatement node) {
     try {
-      overrideManager.enterScope();
+      _overrideManager.enterScope();
       super.visitDoStatement(node);
     } finally {
-      overrideManager.exitScope();
+      _overrideManager.exitScope();
     }
     return null;
   }
 
   Object visitExpressionFunctionBody(ExpressionFunctionBody node) {
     try {
-      overrideManager.enterScope();
+      _overrideManager.enterScope();
       super.visitExpressionFunctionBody(node);
     } finally {
-      overrideManager.exitScope();
+      _overrideManager.exitScope();
     }
     return null;
   }
 
   Object visitFieldDeclaration(FieldDeclaration node) {
     try {
-      overrideManager.enterScope();
+      _overrideManager.enterScope();
       super.visitFieldDeclaration(node);
     } finally {
-      Map<Element, Type2> overrides = overrideManager.captureOverrides(node.fields);
-      overrideManager.exitScope();
-      overrideManager.applyOverrides(overrides);
+      Map<Element, Type2> overrides = _overrideManager.captureOverrides(node.fields);
+      _overrideManager.exitScope();
+      _overrideManager.applyOverrides(overrides);
     }
     return null;
   }
 
   Object visitForEachStatement(ForEachStatement node) {
     try {
-      overrideManager.enterScope();
+      _overrideManager.enterScope();
       super.visitForEachStatement(node);
     } finally {
-      overrideManager.exitScope();
+      _overrideManager.exitScope();
     }
     return null;
   }
 
   Object visitForStatement(ForStatement node) {
     try {
-      overrideManager.enterScope();
+      _overrideManager.enterScope();
       super.visitForStatement(node);
     } finally {
-      overrideManager.exitScope();
+      _overrideManager.exitScope();
     }
     return null;
   }
 
   Object visitFunctionDeclaration(FunctionDeclaration node) {
-    ExecutableElement outerFunction = enclosingFunction;
+    ExecutableElement outerFunction = _enclosingFunction;
     try {
       SimpleIdentifier functionName = node.name;
-      enclosingFunction = functionName.staticElement as ExecutableElement;
+      _enclosingFunction = functionName.staticElement as ExecutableElement;
       super.visitFunctionDeclaration(node);
     } finally {
-      enclosingFunction = outerFunction;
+      _enclosingFunction = outerFunction;
     }
     return null;
   }
 
   Object visitFunctionExpression(FunctionExpression node) {
-    ExecutableElement outerFunction = enclosingFunction;
+    ExecutableElement outerFunction = _enclosingFunction;
     try {
-      enclosingFunction = node.element;
-      overrideManager.enterScope();
+      _enclosingFunction = node.element;
+      _overrideManager.enterScope();
       super.visitFunctionExpression(node);
     } finally {
-      overrideManager.exitScope();
-      enclosingFunction = outerFunction;
+      _overrideManager.exitScope();
+      _enclosingFunction = outerFunction;
     }
     return null;
   }
@@ -8237,29 +8364,29 @@
     Statement thenStatement = node.thenStatement;
     if (thenStatement != null) {
       try {
-        overrideManager.enterScope();
-        promoteManager.enterScope();
+        _overrideManager.enterScope();
+        _promoteManager.enterScope();
         propagateTrueState(condition);
         promoteTypes(condition);
         clearTypePromotionsIfPotentiallyMutatedIn(thenStatement);
         clearTypePromotionsIfAccessedInClosureAndProtentiallyMutated(thenStatement);
         visitStatementInScope(thenStatement);
       } finally {
-        thenOverrides = overrideManager.captureLocalOverrides();
-        overrideManager.exitScope();
-        promoteManager.exitScope();
+        thenOverrides = _overrideManager.captureLocalOverrides();
+        _overrideManager.exitScope();
+        _promoteManager.exitScope();
       }
     }
     Map<Element, Type2> elseOverrides = null;
     Statement elseStatement = node.elseStatement;
     if (elseStatement != null) {
       try {
-        overrideManager.enterScope();
+        _overrideManager.enterScope();
         propagateFalseState(condition);
         visitStatementInScope(elseStatement);
       } finally {
-        elseOverrides = overrideManager.captureLocalOverrides();
-        overrideManager.exitScope();
+        elseOverrides = _overrideManager.captureLocalOverrides();
+        _overrideManager.exitScope();
       }
     }
     node.accept(_elementResolver);
@@ -8269,12 +8396,12 @@
     if (elseIsAbrupt && !thenIsAbrupt) {
       propagateTrueState(condition);
       if (thenOverrides != null) {
-        overrideManager.applyOverrides(thenOverrides);
+        _overrideManager.applyOverrides(thenOverrides);
       }
     } else if (thenIsAbrupt && !elseIsAbrupt) {
       propagateFalseState(condition);
       if (elseOverrides != null) {
-        overrideManager.applyOverrides(elseOverrides);
+        _overrideManager.applyOverrides(elseOverrides);
       }
     }
     return null;
@@ -8285,12 +8412,12 @@
   Object visitLibraryIdentifier(LibraryIdentifier node) => null;
 
   Object visitMethodDeclaration(MethodDeclaration node) {
-    ExecutableElement outerFunction = enclosingFunction;
+    ExecutableElement outerFunction = _enclosingFunction;
     try {
-      enclosingFunction = node.element;
+      _enclosingFunction = node.element;
       super.visitMethodDeclaration(node);
     } finally {
-      enclosingFunction = outerFunction;
+      _enclosingFunction = outerFunction;
     }
     return null;
   }
@@ -8343,32 +8470,32 @@
 
   Object visitSwitchCase(SwitchCase node) {
     try {
-      overrideManager.enterScope();
+      _overrideManager.enterScope();
       super.visitSwitchCase(node);
     } finally {
-      overrideManager.exitScope();
+      _overrideManager.exitScope();
     }
     return null;
   }
 
   Object visitSwitchDefault(SwitchDefault node) {
     try {
-      overrideManager.enterScope();
+      _overrideManager.enterScope();
       super.visitSwitchDefault(node);
     } finally {
-      overrideManager.exitScope();
+      _overrideManager.exitScope();
     }
     return null;
   }
 
   Object visitTopLevelVariableDeclaration(TopLevelVariableDeclaration node) {
     try {
-      overrideManager.enterScope();
+      _overrideManager.enterScope();
       super.visitTopLevelVariableDeclaration(node);
     } finally {
-      Map<Element, Type2> overrides = overrideManager.captureOverrides(node.variables);
-      overrideManager.exitScope();
-      overrideManager.applyOverrides(overrides);
+      Map<Element, Type2> overrides = _overrideManager.captureOverrides(node.variables);
+      _overrideManager.exitScope();
+      _overrideManager.applyOverrides(overrides);
     }
     return null;
   }
@@ -8381,11 +8508,11 @@
     Statement body = node.body;
     if (body != null) {
       try {
-        overrideManager.enterScope();
+        _overrideManager.enterScope();
         propagateTrueState(condition);
         visitStatementInScope(body);
       } finally {
-        overrideManager.exitScope();
+        _overrideManager.exitScope();
       }
     }
     node.accept(_elementResolver);
@@ -8394,6 +8521,22 @@
   }
 
   /**
+   * Return the class element representing the class containing the current node, or `null` if
+   * the current node is not contained in a class.
+   *
+   * @return the class element representing the class containing the current node
+   */
+  ClassElement get enclosingClass => _enclosingClass;
+
+  /**
+   * Return the element representing the function containing the current node, or `null` if
+   * the current node is not contained in a function.
+   *
+   * @return the element representing the function containing the current node
+   */
+  ExecutableElement get enclosingFunction => _enclosingFunction;
+
+  /**
    * Return the propagated element associated with the given expression whose type can be
    * overridden, or `null` if there is no element whose type can be overridden.
    *
@@ -8506,7 +8649,7 @@
     }
     Type2 currentType = getBestType(element);
     if (currentType == null || !currentType.isMoreSpecificThan(potentialType)) {
-      overrideManager.setType(element, potentialType);
+      _overrideManager.setType(element, potentialType);
     }
   }
 
@@ -8519,7 +8662,7 @@
    * @param arguments the arguments to the error, used to compose the error message
    */
   void reportErrorProxyConditionalAnalysisError(Element enclosingElement, ErrorCode errorCode, ASTNode node, List<Object> arguments) {
-    proxyConditionalAnalysisErrors.add(new ProxyConditionalAnalysisError(enclosingElement, new AnalysisError.con2(source, node.offset, node.length, errorCode, arguments)));
+    _proxyConditionalAnalysisErrors.add(new ProxyConditionalAnalysisError(enclosingElement, new AnalysisError.con2(source, node.offset, node.length, errorCode, arguments)));
   }
 
   /**
@@ -8532,7 +8675,7 @@
    * @param arguments the arguments to the error, used to compose the error message
    */
   void reportErrorProxyConditionalAnalysisError2(Element enclosingElement, ErrorCode errorCode, int offset, int length, List<Object> arguments) {
-    proxyConditionalAnalysisErrors.add(new ProxyConditionalAnalysisError(enclosingElement, new AnalysisError.con2(source, offset, length, errorCode, arguments)));
+    _proxyConditionalAnalysisErrors.add(new ProxyConditionalAnalysisError(enclosingElement, new AnalysisError.con2(source, offset, length, errorCode, arguments)));
   }
 
   /**
@@ -8544,7 +8687,7 @@
    * @param arguments the arguments to the error, used to compose the error message
    */
   void reportErrorProxyConditionalAnalysisError3(Element enclosingElement, ErrorCode errorCode, sc.Token token, List<Object> arguments) {
-    proxyConditionalAnalysisErrors.add(new ProxyConditionalAnalysisError(enclosingElement, new AnalysisError.con2(source, token.offset, token.length, errorCode, arguments)));
+    _proxyConditionalAnalysisErrors.add(new ProxyConditionalAnalysisError(enclosingElement, new AnalysisError.con2(source, token.offset, token.length, errorCode, arguments)));
   }
 
   void visitForEachStatementInScope(ForEachStatement node) {
@@ -8557,7 +8700,7 @@
     Statement body = node.body;
     if (body != null) {
       try {
-        overrideManager.enterScope();
+        _overrideManager.enterScope();
         if (loopVariable != null && iterator != null) {
           LocalVariableElement loopElement = loopVariable.element;
           if (loopElement != null) {
@@ -8575,7 +8718,7 @@
         }
         visitStatementInScope(body);
       } finally {
-        overrideManager.exitScope();
+        _overrideManager.exitScope();
       }
     }
     node.accept(_elementResolver);
@@ -8586,13 +8729,13 @@
     safelyVisit(node.variables);
     safelyVisit(node.initialization);
     safelyVisit(node.condition);
-    overrideManager.enterScope();
+    _overrideManager.enterScope();
     try {
       propagateTrueState(node.condition);
       visitStatementInScope(node.body);
       node.updaters.accept(this);
     } finally {
-      overrideManager.exitScope();
+      _overrideManager.exitScope();
     }
   }
 
@@ -8604,10 +8747,10 @@
    * <i>v</i> is not potentially mutated anywhere in the scope of <i>v</i>.
    */
   void clearTypePromotionsIfAccessedInClosureAndProtentiallyMutated(ASTNode target) {
-    for (Element element in promoteManager.promotedElements) {
+    for (Element element in _promoteManager.promotedElements) {
       if ((element as VariableElementImpl).isPotentiallyMutatedInScope) {
         if (isVariableAccessedInClosure(element, target)) {
-          promoteManager.setType(element, null);
+          _promoteManager.setType(element, null);
         }
       }
     }
@@ -8620,9 +8763,9 @@
    * <i>v</i> is not potentially mutated in <i>s<sub>1</sub></i> or within a closure.
    */
   void clearTypePromotionsIfPotentiallyMutatedIn(ASTNode target) {
-    for (Element element in promoteManager.promotedElements) {
+    for (Element element in _promoteManager.promotedElements) {
       if (isVariablePotentiallyMutatedIn(element, target)) {
-        promoteManager.setType(element, null);
+        _promoteManager.setType(element, null);
       }
     }
   }
@@ -8635,7 +8778,7 @@
    * @return the best type information available for the given element
    */
   Type2 getBestType(Element element) {
-    Type2 bestType = overrideManager.getType(element);
+    Type2 bestType = _overrideManager.getType(element);
     if (bestType == null) {
       if (element is LocalVariableElement) {
         bestType = (element as LocalVariableElement).type;
@@ -8697,7 +8840,7 @@
       Type2 currentType = getBestType(element);
       Type2 expectedType = expectedParameters[i].type;
       if (currentType == null || expectedType.isMoreSpecificThan(currentType)) {
-        overrideManager.setType(element, expectedType);
+        _overrideManager.setType(element, expectedType);
       }
     }
   }
@@ -8798,7 +8941,7 @@
       if ((element as VariableElementImpl).isPotentiallyMutatedInClosure) {
         return;
       }
-      Type2 type = promoteManager.getType(element);
+      Type2 type = _promoteManager.getType(element);
       if (type == null) {
         type = expression.staticType;
       }
@@ -8811,7 +8954,7 @@
       if (!potentialType.isMoreSpecificThan(type)) {
         return;
       }
-      promoteManager.setType(element, potentialType);
+      _promoteManager.setType(element, potentialType);
     }
   }
 
@@ -8919,21 +9062,21 @@
 
   set elementResolver_J2DAccessor(__v) => _elementResolver = __v;
 
-  get labelScope_J2DAccessor => labelScope;
+  get labelScope_J2DAccessor => _labelScope;
 
-  set labelScope_J2DAccessor(__v) => labelScope = __v;
+  set labelScope_J2DAccessor(__v) => _labelScope = __v;
 
-  get nameScope_J2DAccessor => nameScope;
+  get nameScope_J2DAccessor => _nameScope;
 
-  set nameScope_J2DAccessor(__v) => nameScope = __v;
+  set nameScope_J2DAccessor(__v) => _nameScope = __v;
 
   get typeAnalyzer_J2DAccessor => _typeAnalyzer;
 
   set typeAnalyzer_J2DAccessor(__v) => _typeAnalyzer = __v;
 
-  get enclosingClass_J2DAccessor => enclosingClass;
+  get enclosingClass_J2DAccessor => _enclosingClass;
 
-  set enclosingClass_J2DAccessor(__v) => enclosingClass = __v;
+  set enclosingClass_J2DAccessor(__v) => _enclosingClass = __v;
 }
 
 class RecursiveASTVisitor_8 extends RecursiveASTVisitor<Object> {
@@ -8996,12 +9139,12 @@
   /**
    * The element for the library containing the compilation unit being visited.
    */
-  LibraryElement definingLibrary;
+  LibraryElement _definingLibrary;
 
   /**
    * The source representing the compilation unit being visited.
    */
-  Source source;
+  final Source source;
 
   /**
    * The error listener that will be informed of any errors that are found during resolution.
@@ -9011,18 +9154,18 @@
   /**
    * The scope used to resolve identifiers.
    */
-  Scope nameScope;
+  Scope _nameScope;
 
   /**
    * The object used to access the types from the core library.
    */
-  TypeProvider typeProvider;
+  final TypeProvider typeProvider;
 
   /**
    * The scope used to resolve labels for `break` and `continue` statements, or
    * `null` if no labels have been defined in the current context.
    */
-  LabelScope labelScope;
+  LabelScope _labelScope;
 
   /**
    * Initialize a newly created visitor to resolve the nodes in a compilation unit.
@@ -9031,13 +9174,11 @@
    * @param source the source representing the compilation unit being visited
    * @param typeProvider the object used to access the types from the core library
    */
-  ScopedVisitor.con1(Library library, Source source, TypeProvider typeProvider) {
-    this.definingLibrary = library.libraryElement;
-    this.source = source;
+  ScopedVisitor.con1(Library library, this.source, this.typeProvider) {
+    this._definingLibrary = library.libraryElement;
     LibraryScope libraryScope = library.libraryScope;
     this._errorListener = libraryScope.errorListener;
-    this.nameScope = libraryScope;
-    this.typeProvider = typeProvider;
+    this._nameScope = libraryScope;
   }
 
   /**
@@ -9050,12 +9191,10 @@
    * @param errorListener the error listener that will be informed of any errors that are found
    *          during resolution
    */
-  ScopedVisitor.con2(LibraryElement definingLibrary, Source source, TypeProvider typeProvider, AnalysisErrorListener errorListener) {
-    this.definingLibrary = definingLibrary;
-    this.source = source;
+  ScopedVisitor.con2(LibraryElement definingLibrary, this.source, this.typeProvider, AnalysisErrorListener errorListener) {
+    this._definingLibrary = definingLibrary;
     this._errorListener = errorListener;
-    this.nameScope = new LibraryScope(definingLibrary, errorListener);
-    this.typeProvider = typeProvider;
+    this._nameScope = new LibraryScope(definingLibrary, errorListener);
   }
 
   /**
@@ -9069,15 +9208,20 @@
    * @param errorListener the error listener that will be informed of any errors that are found
    *          during resolution
    */
-  ScopedVisitor.con3(LibraryElement definingLibrary, Source source, TypeProvider typeProvider, Scope nameScope, AnalysisErrorListener errorListener) {
-    this.definingLibrary = definingLibrary;
-    this.source = source;
+  ScopedVisitor.con3(LibraryElement definingLibrary, this.source, this.typeProvider, Scope nameScope, AnalysisErrorListener errorListener) {
+    this._definingLibrary = definingLibrary;
     this._errorListener = errorListener;
-    this.nameScope = nameScope;
-    this.typeProvider = typeProvider;
+    this._nameScope = nameScope;
   }
 
   /**
+   * Return the library element for the library containing the compilation unit being resolved.
+   *
+   * @return the library element for the library containing the compilation unit being resolved
+   */
+  LibraryElement get definingLibrary => _definingLibrary;
+
+  /**
    * Report an error with the given analysis error.
    *
    * @param errorCode analysis error
@@ -9087,14 +9231,14 @@
   }
 
   Object visitBlock(Block node) {
-    Scope outerScope = nameScope;
+    Scope outerScope = _nameScope;
     try {
-      EnclosedScope enclosedScope = new EnclosedScope(nameScope);
+      EnclosedScope enclosedScope = new EnclosedScope(_nameScope);
       hideNamesDefinedInBlock(enclosedScope, node);
-      nameScope = enclosedScope;
+      _nameScope = enclosedScope;
       super.visitBlock(node);
     } finally {
-      nameScope = outerScope;
+      _nameScope = outerScope;
     }
     return null;
   }
@@ -9102,17 +9246,17 @@
   Object visitCatchClause(CatchClause node) {
     SimpleIdentifier exception = node.exceptionParameter;
     if (exception != null) {
-      Scope outerScope = nameScope;
+      Scope outerScope = _nameScope;
       try {
-        nameScope = new EnclosedScope(nameScope);
-        nameScope.define(exception.staticElement);
+        _nameScope = new EnclosedScope(_nameScope);
+        _nameScope.define(exception.staticElement);
         SimpleIdentifier stackTrace = node.stackTraceParameter;
         if (stackTrace != null) {
-          nameScope.define(stackTrace.staticElement);
+          _nameScope.define(stackTrace.staticElement);
         }
         super.visitCatchClause(node);
       } finally {
-        nameScope = outerScope;
+        _nameScope = outerScope;
       }
     } else {
       super.visitCatchClause(node);
@@ -9121,34 +9265,34 @@
   }
 
   Object visitClassDeclaration(ClassDeclaration node) {
-    Scope outerScope = nameScope;
+    Scope outerScope = _nameScope;
     try {
-      nameScope = new ClassScope(nameScope, node.element);
+      _nameScope = new ClassScope(_nameScope, node.element);
       super.visitClassDeclaration(node);
     } finally {
-      nameScope = outerScope;
+      _nameScope = outerScope;
     }
     return null;
   }
 
   Object visitClassTypeAlias(ClassTypeAlias node) {
-    Scope outerScope = nameScope;
+    Scope outerScope = _nameScope;
     try {
-      nameScope = new ClassScope(nameScope, node.element);
+      _nameScope = new ClassScope(_nameScope, node.element);
       super.visitClassTypeAlias(node);
     } finally {
-      nameScope = outerScope;
+      _nameScope = outerScope;
     }
     return null;
   }
 
   Object visitConstructorDeclaration(ConstructorDeclaration node) {
-    Scope outerScope = nameScope;
+    Scope outerScope = _nameScope;
     try {
-      nameScope = new FunctionScope(nameScope, node.element);
+      _nameScope = new FunctionScope(_nameScope, node.element);
       super.visitConstructorDeclaration(node);
     } finally {
-      nameScope = outerScope;
+      _nameScope = outerScope;
     }
     return null;
   }
@@ -9156,74 +9300,74 @@
   Object visitDeclaredIdentifier(DeclaredIdentifier node) {
     VariableElement element = node.element;
     if (element != null) {
-      nameScope.define(element);
+      _nameScope.define(element);
     }
     super.visitDeclaredIdentifier(node);
     return null;
   }
 
   Object visitDoStatement(DoStatement node) {
-    LabelScope outerLabelScope = labelScope;
+    LabelScope outerLabelScope = _labelScope;
     try {
-      labelScope = new LabelScope.con1(labelScope, false, false);
+      _labelScope = new LabelScope.con1(_labelScope, false, false);
       visitStatementInScope(node.body);
       safelyVisit(node.condition);
     } finally {
-      labelScope = outerLabelScope;
+      _labelScope = outerLabelScope;
     }
     return null;
   }
 
   Object visitForEachStatement(ForEachStatement node) {
-    Scope outerNameScope = nameScope;
-    LabelScope outerLabelScope = labelScope;
+    Scope outerNameScope = _nameScope;
+    LabelScope outerLabelScope = _labelScope;
     try {
-      nameScope = new EnclosedScope(nameScope);
-      labelScope = new LabelScope.con1(outerLabelScope, false, false);
+      _nameScope = new EnclosedScope(_nameScope);
+      _labelScope = new LabelScope.con1(outerLabelScope, false, false);
       visitForEachStatementInScope(node);
     } finally {
-      labelScope = outerLabelScope;
-      nameScope = outerNameScope;
+      _labelScope = outerLabelScope;
+      _nameScope = outerNameScope;
     }
     return null;
   }
 
   Object visitFormalParameterList(FormalParameterList node) {
     super.visitFormalParameterList(node);
-    if (nameScope is FunctionScope) {
-      (nameScope as FunctionScope).defineParameters();
+    if (_nameScope is FunctionScope) {
+      (_nameScope as FunctionScope).defineParameters();
     }
-    if (nameScope is FunctionTypeScope) {
-      (nameScope as FunctionTypeScope).defineParameters();
+    if (_nameScope is FunctionTypeScope) {
+      (_nameScope as FunctionTypeScope).defineParameters();
     }
     return null;
   }
 
   Object visitForStatement(ForStatement node) {
-    Scope outerNameScope = nameScope;
-    LabelScope outerLabelScope = labelScope;
+    Scope outerNameScope = _nameScope;
+    LabelScope outerLabelScope = _labelScope;
     try {
-      nameScope = new EnclosedScope(nameScope);
-      labelScope = new LabelScope.con1(outerLabelScope, false, false);
+      _nameScope = new EnclosedScope(_nameScope);
+      _labelScope = new LabelScope.con1(outerLabelScope, false, false);
       visitForStatementInScope(node);
     } finally {
-      labelScope = outerLabelScope;
-      nameScope = outerNameScope;
+      _labelScope = outerLabelScope;
+      _nameScope = outerNameScope;
     }
     return null;
   }
 
   Object visitFunctionDeclaration(FunctionDeclaration node) {
     ExecutableElement function = node.element;
-    Scope outerScope = nameScope;
+    Scope outerScope = _nameScope;
     try {
-      nameScope = new FunctionScope(nameScope, function);
+      _nameScope = new FunctionScope(_nameScope, function);
       super.visitFunctionDeclaration(node);
     } finally {
-      nameScope = outerScope;
+      _nameScope = outerScope;
     }
     if (function.enclosingElement is! CompilationUnitElement) {
-      nameScope.define(function);
+      _nameScope.define(function);
     }
     return null;
   }
@@ -9232,28 +9376,28 @@
     if (node.parent is FunctionDeclaration) {
       super.visitFunctionExpression(node);
     } else {
-      Scope outerScope = nameScope;
+      Scope outerScope = _nameScope;
       try {
         ExecutableElement functionElement = node.element;
         if (functionElement == null) {
         } else {
-          nameScope = new FunctionScope(nameScope, functionElement);
+          _nameScope = new FunctionScope(_nameScope, functionElement);
         }
         super.visitFunctionExpression(node);
       } finally {
-        nameScope = outerScope;
+        _nameScope = outerScope;
       }
     }
     return null;
   }
 
   Object visitFunctionTypeAlias(FunctionTypeAlias node) {
-    Scope outerScope = nameScope;
+    Scope outerScope = _nameScope;
     try {
-      nameScope = new FunctionTypeScope(nameScope, node.element);
+      _nameScope = new FunctionTypeScope(_nameScope, node.element);
       super.visitFunctionTypeAlias(node);
     } finally {
-      nameScope = outerScope;
+      _nameScope = outerScope;
     }
     return null;
   }
@@ -9270,59 +9414,59 @@
     try {
       super.visitLabeledStatement(node);
     } finally {
-      labelScope = outerScope;
+      _labelScope = outerScope;
     }
     return null;
   }
 
   Object visitMethodDeclaration(MethodDeclaration node) {
-    Scope outerScope = nameScope;
+    Scope outerScope = _nameScope;
     try {
-      nameScope = new FunctionScope(nameScope, node.element);
+      _nameScope = new FunctionScope(_nameScope, node.element);
       super.visitMethodDeclaration(node);
     } finally {
-      nameScope = outerScope;
+      _nameScope = outerScope;
     }
     return null;
   }
 
   Object visitSwitchCase(SwitchCase node) {
     node.expression.accept(this);
-    Scope outerNameScope = nameScope;
+    Scope outerNameScope = _nameScope;
     try {
-      nameScope = new EnclosedScope(nameScope);
+      _nameScope = new EnclosedScope(_nameScope);
       node.statements.accept(this);
     } finally {
-      nameScope = outerNameScope;
+      _nameScope = outerNameScope;
     }
     return null;
   }
 
   Object visitSwitchDefault(SwitchDefault node) {
-    Scope outerNameScope = nameScope;
+    Scope outerNameScope = _nameScope;
     try {
-      nameScope = new EnclosedScope(nameScope);
+      _nameScope = new EnclosedScope(_nameScope);
       node.statements.accept(this);
     } finally {
-      nameScope = outerNameScope;
+      _nameScope = outerNameScope;
     }
     return null;
   }
 
   Object visitSwitchStatement(SwitchStatement node) {
-    LabelScope outerScope = labelScope;
+    LabelScope outerScope = _labelScope;
     try {
-      labelScope = new LabelScope.con1(outerScope, true, false);
+      _labelScope = new LabelScope.con1(outerScope, true, false);
       for (SwitchMember member in node.members) {
         for (Label label in member.labels) {
           SimpleIdentifier labelName = label.label;
           LabelElement labelElement = labelName.staticElement as LabelElement;
-          labelScope = new LabelScope.con2(labelScope, labelName.name, labelElement);
+          _labelScope = new LabelScope.con2(_labelScope, labelName.name, labelElement);
         }
       }
       super.visitSwitchStatement(node);
     } finally {
-      labelScope = outerScope;
+      _labelScope = outerScope;
     }
     return null;
   }
@@ -9332,25 +9476,39 @@
     if (node.parent.parent is! TopLevelVariableDeclaration && node.parent.parent is! FieldDeclaration) {
       VariableElement element = node.element;
       if (element != null) {
-        nameScope.define(element);
+        _nameScope.define(element);
       }
     }
     return null;
   }
 
   Object visitWhileStatement(WhileStatement node) {
-    LabelScope outerScope = labelScope;
+    LabelScope outerScope = _labelScope;
     try {
-      labelScope = new LabelScope.con1(outerScope, false, false);
+      _labelScope = new LabelScope.con1(outerScope, false, false);
       safelyVisit(node.condition);
       visitStatementInScope(node.body);
     } finally {
-      labelScope = outerScope;
+      _labelScope = outerScope;
     }
     return null;
   }
 
   /**
+   * Return the label scope in which the current node is being resolved.
+   *
+   * @return the label scope in which the current node is being resolved
+   */
+  LabelScope get labelScope => _labelScope;
+
+  /**
+   * Return the name scope in which the current node is being resolved.
+   *
+   * @return the name scope in which the current node is being resolved
+   */
+  Scope get nameScope => _nameScope;
+
+  /**
    * Report an error with the given error code and arguments.
    *
    * @param errorCode the error code of the error to be reported
@@ -9434,12 +9592,12 @@
     if (node is Block) {
       visitBlock(node as Block);
     } else if (node != null) {
-      Scope outerNameScope = nameScope;
+      Scope outerNameScope = _nameScope;
       try {
-        nameScope = new EnclosedScope(nameScope);
+        _nameScope = new EnclosedScope(_nameScope);
         node.accept(this);
       } finally {
-        nameScope = outerNameScope;
+        _nameScope = outerNameScope;
       }
     }
   }
@@ -9451,12 +9609,12 @@
    * @return the scope that was in effect before the new scopes were added
    */
   LabelScope addScopesFor(NodeList<Label> labels) {
-    LabelScope outerScope = labelScope;
+    LabelScope outerScope = _labelScope;
     for (Label label in labels) {
       SimpleIdentifier labelNameNode = label.label;
       String labelName = labelNameNode.name;
       LabelElement labelElement = labelNameNode.staticElement as LabelElement;
-      labelScope = new LabelScope.con2(labelScope, labelName, labelElement);
+      _labelScope = new LabelScope.con2(_labelScope, labelName, labelElement);
     }
     return outerScope;
   }
@@ -12945,7 +13103,7 @@
   /**
    * The scope in which this scope is lexically enclosed.
    */
-  Scope _enclosingScope;
+  final Scope enclosingScope;
 
   /**
    * A table mapping names that will be defined in this scope, but right now are not initialized.
@@ -12955,17 +13113,18 @@
   Map<String, Element> _hiddenElements = new Map<String, Element>();
 
   /**
+   * A flag indicating whether there are any names defined in this scope.
+   */
+  bool _hasHiddenName = false;
+
+  /**
    * Initialize a newly created scope enclosed within another scope.
    *
    * @param enclosingScope the scope in which this scope is lexically enclosed
    */
-  EnclosedScope(Scope enclosingScope) {
-    this._enclosingScope = enclosingScope;
-  }
+  EnclosedScope(this.enclosingScope);
 
-  Scope get enclosingScope => _enclosingScope;
-
-  AnalysisErrorListener get errorListener => _enclosingScope.errorListener;
+  AnalysisErrorListener get errorListener => enclosingScope.errorListener;
 
   /**
    * Record that given element is declared in this scope, but hasn't been initialized yet, so it is
@@ -12979,6 +13138,7 @@
       String name = element.name;
       if (name != null && !name.isEmpty) {
         _hiddenElements[name] = element;
+        _hasHiddenName = true;
       }
     }
   }
@@ -12988,12 +13148,14 @@
     if (element != null) {
       return element;
     }
-    Element hiddenElement = _hiddenElements[name];
-    if (hiddenElement != null) {
-      errorListener.onError(new AnalysisError.con2(getSource(identifier), identifier.offset, identifier.length, CompileTimeErrorCode.REFERENCED_BEFORE_DECLARATION, []));
-      return hiddenElement;
+    if (_hasHiddenName) {
+      Element hiddenElement = _hiddenElements[name];
+      if (hiddenElement != null) {
+        errorListener.onError(new AnalysisError.con2(getSource(identifier), identifier.offset, identifier.length, CompileTimeErrorCode.REFERENCED_BEFORE_DECLARATION, []));
+        return hiddenElement;
+      }
     }
-    return _enclosingScope.lookup3(identifier, name, referencingLibrary);
+    return enclosingScope.lookup3(identifier, name, referencingLibrary);
   }
 }
 
@@ -13120,7 +13282,7 @@
    * The label element returned for scopes that can be the target of an unlabeled `break` or
    * `continue`.
    */
-  static SimpleIdentifier _EMPTY_LABEL_IDENTIFIER = new SimpleIdentifier.full(new sc.StringToken(sc.TokenType.IDENTIFIER, "", 0));
+  static SimpleIdentifier _EMPTY_LABEL_IDENTIFIER = new SimpleIdentifier(new sc.StringToken(sc.TokenType.IDENTIFIER, "", 0));
 
   /**
    * Initialize a newly created scope to represent the potential target of an unlabeled
@@ -13188,7 +13350,7 @@
   /**
    * The listener that is to be informed when an error is encountered.
    */
-  AnalysisErrorListener _errorListener;
+  final AnalysisErrorListener errorListener;
 
   /**
    * A list of the namespaces representing the names that are available in this scope from imported
@@ -13203,9 +13365,8 @@
    *          this scope
    * @param errorListener the listener that is to be informed when an error is encountered
    */
-  LibraryImportScope(LibraryElement definingLibrary, AnalysisErrorListener errorListener) {
+  LibraryImportScope(LibraryElement definingLibrary, this.errorListener) {
     this._definingLibrary = definingLibrary;
-    this._errorListener = errorListener;
     createImportedNamespaces(definingLibrary);
   }
 
@@ -13215,8 +13376,6 @@
     }
   }
 
-  AnalysisErrorListener get errorListener => _errorListener;
-
   Element lookup3(Identifier identifier, String name, LibraryElement referencingLibrary) {
     Element foundElement = localLookup(name, referencingLibrary);
     if (foundElement != null) {
@@ -13240,7 +13399,7 @@
       List<Element> conflictingMembers = (foundElement as MultiplyDefinedElementImpl).conflictingElements;
       String libName1 = getLibraryName(conflictingMembers[0], "");
       String libName2 = getLibraryName(conflictingMembers[1], "");
-      _errorListener.onError(new AnalysisError.con2(getSource(identifier), identifier.offset, identifier.length, StaticWarningCode.AMBIGUOUS_IMPORT, [foundEltName, libName1, libName2]));
+      errorListener.onError(new AnalysisError.con2(getSource(identifier), identifier.offset, identifier.length, StaticWarningCode.AMBIGUOUS_IMPORT, [foundEltName, libName1, libName2]));
       return foundElement;
     }
     if (foundElement != null) {
@@ -13309,7 +13468,7 @@
     if (sdkElement != null && to > 0) {
       String sdkLibName = getLibraryName(sdkElement, "");
       String otherLibName = getLibraryName(conflictingMembers[0], "");
-      _errorListener.onError(new AnalysisError.con2(getSource(identifier), identifier.offset, identifier.length, StaticWarningCode.CONFLICTING_DART_IMPORT, [name, sdkLibName, otherLibName]));
+      errorListener.onError(new AnalysisError.con2(getSource(identifier), identifier.offset, identifier.length, StaticWarningCode.CONFLICTING_DART_IMPORT, [name, sdkLibName, otherLibName]));
     }
     if (to == length) {
       return foundElement;
@@ -13705,6 +13864,11 @@
   Map<String, Element> _definedNames = new Map<String, Element>();
 
   /**
+   * A flag indicating whether there are any names defined in this scope.
+   */
+  bool _hasName = false;
+
+  /**
    * Add the given element to this scope. If there is already an element with the given name defined
    * in this scope, then an error will be generated and the original element will continue to be
    * mapped to the name. If there is an element with the given name in an enclosing scope, then a
@@ -13719,6 +13883,7 @@
         errorListener.onError(getErrorForDuplicate(_definedNames[name], element));
       } else {
         _definedNames[name] = element;
+        _hasName = true;
       }
     }
   }
@@ -13748,6 +13913,7 @@
    */
   void defineWithoutChecking(Element element) {
     _definedNames[getName(element)] = element;
+    _hasName = true;
   }
 
   /**
@@ -13758,6 +13924,7 @@
    */
   void defineWithoutChecking2(String name, Element element) {
     _definedNames[name] = element;
+    _hasName = true;
   }
 
   /**
@@ -13808,7 +13975,12 @@
    *          implement library-level privacy
    * @return the element with which the given name is associated
    */
-  Element localLookup(String name, LibraryElement referencingLibrary) => _definedNames[name];
+  Element localLookup(String name, LibraryElement referencingLibrary) {
+    if (_hasName) {
+      return _definedNames[name];
+    }
+    return null;
+  }
 
   /**
    * Return the element with which the given name is associated, or `null` if the name is not
@@ -16143,7 +16315,7 @@
       if (initializer is SuperConstructorInvocation) {
         SuperConstructorInvocation superInvocation = initializer as SuperConstructorInvocation;
         ConstructorElement element = superInvocation.staticElement;
-        if (element.isConst) {
+        if (element == null || element.isConst) {
           return false;
         }
         _errorReporter.reportError2(CompileTimeErrorCode.CONST_CONSTRUCTOR_WITH_NON_CONST_SUPER, superInvocation, []);
@@ -18702,12 +18874,12 @@
   /**
    * The type of this error.
    */
-  ErrorType _type;
+  final ErrorType type;
 
   /**
    * The template used to create the message to be displayed for this error.
    */
-  String _message;
+  final String message;
 
   /**
    * The template used to create the correction to be displayed for this error, or `null` if
@@ -18721,10 +18893,7 @@
    * @param type the type of this error
    * @param message the message template used to create the message to be displayed for the error
    */
-  ResolverErrorCode.con1(String name, int ordinal, ErrorType type, String message) : super(name, ordinal) {
-    this._type = type;
-    this._message = message;
-  }
+  ResolverErrorCode.con1(String name, int ordinal, this.type, this.message) : super(name, ordinal);
 
   /**
    * Initialize a newly created error code to have the given type, message and correction.
@@ -18733,17 +18902,11 @@
    * @param message the template used to create the message to be displayed for the error
    * @param correction the template used to create the correction to be displayed for the error
    */
-  ResolverErrorCode.con2(String name, int ordinal, ErrorType type, String message, String correction) : super(name, ordinal) {
-    this._type = type;
-    this._message = message;
+  ResolverErrorCode.con2(String name, int ordinal, this.type, this.message, String correction) : super(name, ordinal) {
     this.correction9 = correction;
   }
 
   String get correction => correction9;
 
-  ErrorSeverity get errorSeverity => _type.severity;
-
-  String get message => _message;
-
-  ErrorType get type => _type;
+  ErrorSeverity get errorSeverity => type.severity;
 }
\ No newline at end of file
diff --git a/pkg/analyzer/lib/src/generated/scanner.dart b/pkg/analyzer/lib/src/generated/scanner.dart
index 413cf3b..6d0fe31 100644
--- a/pkg/analyzer/lib/src/generated/scanner.dart
+++ b/pkg/analyzer/lib/src/generated/scanner.dart
@@ -163,7 +163,7 @@
   /**
    * The template used to create the message to be displayed for this error.
    */
-  String _message;
+  final String message;
 
   /**
    * The template used to create the correction to be displayed for this error, or `null` if
@@ -176,9 +176,7 @@
    *
    * @param message the message template used to create the message to be displayed for this error
    */
-  ScannerErrorCode.con1(String name, int ordinal, String message) : super(name, ordinal) {
-    this._message = message;
-  }
+  ScannerErrorCode.con1(String name, int ordinal, this.message) : super(name, ordinal);
 
   /**
    * Initialize a newly created error code to have the given message and correction.
@@ -186,8 +184,7 @@
    * @param message the template used to create the message to be displayed for the error
    * @param correction the template used to create the correction to be displayed for the error
    */
-  ScannerErrorCode.con2(String name, int ordinal, String message, String correction) : super(name, ordinal) {
-    this._message = message;
+  ScannerErrorCode.con2(String name, int ordinal, this.message, String correction) : super(name, ordinal) {
     this.correction10 = correction;
   }
 
@@ -195,8 +192,6 @@
 
   ErrorSeverity get errorSeverity => ErrorSeverity.ERROR;
 
-  String get message => _message;
-
   ErrorType get type => ErrorType.SYNTACTIC_ERROR;
 }
 
@@ -424,13 +419,13 @@
   /**
    * The lexeme for the keyword.
    */
-  String syntax;
+  String _syntax;
 
   /**
    * A flag indicating whether the keyword is a pseudo-keyword. Pseudo keywords can be used as
    * identifiers.
    */
-  bool isPseudoKeyword = false;
+  bool _isPseudoKeyword2 = false;
 
   /**
    * A table mapping the lexemes of keywords to the corresponding keyword.
@@ -445,7 +440,7 @@
   static Map<String, Keyword> createKeywordMap() {
     LinkedHashMap<String, Keyword> result = new LinkedHashMap<String, Keyword>();
     for (Keyword keyword in values) {
-      result[keyword.syntax] = keyword;
+      result[keyword._syntax] = keyword;
     }
     return result;
   }
@@ -466,9 +461,24 @@
    * @param isPseudoKeyword `true` if this keyword is a pseudo-keyword
    */
   Keyword.con2(String name, int ordinal, String syntax, bool isPseudoKeyword) : super(name, ordinal) {
-    this.syntax = syntax;
-    this.isPseudoKeyword = isPseudoKeyword;
+    this._syntax = syntax;
+    this._isPseudoKeyword2 = isPseudoKeyword;
   }
+
+  /**
+   * Return the lexeme for the keyword.
+   *
+   * @return the lexeme for the keyword
+   */
+  String get syntax => _syntax;
+
+  /**
+   * Return `true` if this keyword is a pseudo-keyword. Pseudo keywords can be used as
+   * identifiers.
+   *
+   * @return `true` if this keyword is a pseudo-keyword
+   */
+  bool get isPseudoKeyword => _isPseudoKeyword2;
 }
 
 /**
@@ -558,21 +568,21 @@
   /**
    * A map from tokens that were copied to the copies of the tokens.
    */
-  final TokenMap tokenMap = new TokenMap();
+  TokenMap _tokenMap = new TokenMap();
 
   /**
    * The token in the new token stream immediately to the left of the range of tokens that were
    * inserted, or the token immediately to the left of the modified region if there were no new
    * tokens.
    */
-  Token leftToken;
+  Token _leftToken;
 
   /**
    * The token in the new token stream immediately to the right of the range of tokens that were
    * inserted, or the token immediately to the right of the modified region if there were no new
    * tokens.
    */
-  Token rightToken;
+  Token _rightToken;
 
   /**
    * A flag indicating whether there were any tokens changed as a result of the modification.
@@ -591,6 +601,31 @@
   }
 
   /**
+   * Return the token in the new token stream immediately to the left of the range of tokens that
+   * were inserted, or the token immediately to the left of the modified region if there were no new
+   * tokens.
+   *
+   * @return the token to the left of the inserted tokens
+   */
+  Token get leftToken => _leftToken;
+
+  /**
+   * Return the token in the new token stream immediately to the right of the range of tokens that
+   * were inserted, or the token immediately to the right of the modified region if there were no
+   * new tokens.
+   *
+   * @return the token to the right of the inserted tokens
+   */
+  Token get rightToken => _rightToken;
+
+  /**
+   * Return a map from tokens that were copied to the copies of the tokens.
+   *
+   * @return a map from tokens that were copied to the copies of the tokens
+   */
+  TokenMap get tokenMap => _tokenMap;
+
+  /**
    * Return `true` if there were any tokens either added or removed (or both) as a result of
    * the modification.
    *
@@ -616,7 +651,7 @@
     }
     Token oldFirst = originalStream;
     Token oldLeftToken = originalStream.previous;
-    leftToken = tail;
+    _leftToken = tail;
     int removedEnd = index + (removedLength == 0 ? 0 : removedLength - 1);
     while (originalStream.type != TokenType.EOF && originalStream.offset <= removedEnd) {
       originalStream = originalStream.next;
@@ -643,46 +678,46 @@
     }
     if (identical(originalStream.type, TokenType.EOF)) {
       copyAndAdvance(originalStream, delta);
-      rightToken = tail;
-      rightToken.setNextWithoutSettingPrevious(rightToken);
+      _rightToken = tail;
+      _rightToken.setNextWithoutSettingPrevious(_rightToken);
     } else {
       originalStream = copyAndAdvance(originalStream, delta);
-      rightToken = tail;
+      _rightToken = tail;
       while (originalStream.type != TokenType.EOF) {
         originalStream = copyAndAdvance(originalStream, delta);
       }
       Token eof = copyAndAdvance(originalStream, delta);
       eof.setNextWithoutSettingPrevious(eof);
     }
-    Token newFirst = leftToken.next;
-    while (newFirst != rightToken && oldFirst != oldRightToken && newFirst.type != TokenType.EOF && equals3(oldFirst, newFirst)) {
-      tokenMap.put(oldFirst, newFirst);
+    Token newFirst = _leftToken.next;
+    while (newFirst != _rightToken && oldFirst != oldRightToken && newFirst.type != TokenType.EOF && equals3(oldFirst, newFirst)) {
+      _tokenMap.put(oldFirst, newFirst);
       oldLeftToken = oldFirst;
       oldFirst = oldFirst.next;
-      leftToken = newFirst;
+      _leftToken = newFirst;
       newFirst = newFirst.next;
     }
-    Token newLast = rightToken.previous;
-    while (newLast != leftToken && oldLast != oldLeftToken && newLast.type != TokenType.EOF && equals3(oldLast, newLast)) {
-      tokenMap.put(oldLast, newLast);
+    Token newLast = _rightToken.previous;
+    while (newLast != _leftToken && oldLast != oldLeftToken && newLast.type != TokenType.EOF && equals3(oldLast, newLast)) {
+      _tokenMap.put(oldLast, newLast);
       oldRightToken = oldLast;
       oldLast = oldLast.previous;
-      rightToken = newLast;
+      _rightToken = newLast;
       newLast = newLast.previous;
     }
-    _hasNonWhitespaceChange2 = leftToken.next != rightToken || oldLeftToken.next != oldRightToken;
+    _hasNonWhitespaceChange2 = _leftToken.next != _rightToken || oldLeftToken.next != oldRightToken;
     return firstToken;
   }
 
   Token copyAndAdvance(Token originalToken, int delta) {
     Token copiedToken = originalToken.copy();
-    tokenMap.put(originalToken, copiedToken);
+    _tokenMap.put(originalToken, copiedToken);
     copiedToken.applyDelta(delta);
     appendToken(copiedToken);
     Token originalComment = originalToken.precedingComments;
     Token copiedComment = originalToken.precedingComments;
     while (originalComment != null) {
-      tokenMap.put(originalComment, copiedComment);
+      _tokenMap.put(originalComment, copiedComment);
       originalComment = originalComment.next;
       copiedComment = copiedComment.next;
     }
@@ -715,7 +750,7 @@
   /**
    * The source being scanned.
    */
-  Source source;
+  final Source source;
 
   /**
    * The reader used to access the characters in the source.
@@ -728,6 +763,11 @@
   AnalysisErrorListener _errorListener;
 
   /**
+   * The flag specifying if documentation comments should be parsed.
+   */
+  bool _preserveComments = true;
+
+  /**
    * The token pointing to the head of the linked list of tokens.
    */
   Token _tokens;
@@ -735,7 +775,7 @@
   /**
    * The last token that was scanned.
    */
-  Token tail;
+  Token _tail;
 
   /**
    * The first token in the list of comment tokens found since the last non-comment token.
@@ -780,13 +820,12 @@
    * @param reader the character reader used to read the characters in the source
    * @param errorListener the error listener that will be informed of any errors that are found
    */
-  Scanner(Source source, CharacterReader reader, AnalysisErrorListener errorListener) {
-    this.source = source;
+  Scanner(this.source, CharacterReader reader, AnalysisErrorListener errorListener) {
     this._reader = reader;
     this._errorListener = errorListener;
     _tokens = new Token(TokenType.EOF, -1);
     _tokens.setNext(_tokens);
-    tail = _tokens;
+    _tail = _tokens;
     _tokenStart = -1;
     _lineStarts.add(0);
   }
@@ -806,6 +845,15 @@
   bool hasUnmatchedGroups() => _hasUnmatchedGroups2;
 
   /**
+   * Set whether documentation tokens should be scanned.
+   *
+   * @param preserveComments `true` if documentation tokens should be scanned
+   */
+  void set preserveComments(bool preserveComments) {
+    this._preserveComments = preserveComments;
+  }
+
+  /**
    * Record that the source begins on the given line and column at the current offset as given by
    * the reader. The line starts for lines before the given line will not be correct.
    *
@@ -857,7 +905,7 @@
    * @param token the token to be appended
    */
   void appendToken(Token token) {
-    tail = tail.setNext(token);
+    _tail = _tail.setNext(token);
   }
 
   int bigSwitch(int next) {
@@ -1009,6 +1057,13 @@
   Token get firstToken => _tokens.next;
 
   /**
+   * Return the last token that was scanned.
+   *
+   * @return the last token that was scanned
+   */
+  Token get tail => _tail;
+
+  /**
    * Record the fact that we are at the beginning of a new line in the source.
    */
   void recordStartOfLine() {
@@ -1024,12 +1079,15 @@
       _firstComment = null;
       _lastComment = null;
     }
-    tail = tail.setNext(token);
+    _tail = _tail.setNext(token);
     _groupingStack.add(token);
     _stackEnd++;
   }
 
   void appendCommentToken(TokenType type, String value) {
+    if (!_preserveComments) {
+      return;
+    }
     if (_firstComment == null) {
       _firstComment = new StringToken(type, value, _tokenStart);
       _lastComment = _firstComment;
@@ -1047,7 +1105,7 @@
       _firstComment = null;
       _lastComment = null;
     }
-    tail = tail.setNext(token);
+    _tail = _tail.setNext(token);
     if (_stackEnd >= 0) {
       BeginToken begin = _groupingStack[_stackEnd];
       if (identical(begin.type, beginType)) {
@@ -1067,7 +1125,7 @@
       _lastComment = null;
     }
     eofToken.setNext(eofToken);
-    tail = tail.setNext(eofToken);
+    _tail = _tail.setNext(eofToken);
     if (_stackEnd >= 0) {
       _hasUnmatchedGroups2 = true;
     }
@@ -1075,9 +1133,9 @@
 
   void appendKeywordToken(Keyword keyword) {
     if (_firstComment == null) {
-      tail = tail.setNext(new KeywordToken(keyword, _tokenStart));
+      _tail = _tail.setNext(new KeywordToken(keyword, _tokenStart));
     } else {
-      tail = tail.setNext(new KeywordTokenWithComment(keyword, _tokenStart, _firstComment));
+      _tail = _tail.setNext(new KeywordTokenWithComment(keyword, _tokenStart, _firstComment));
       _firstComment = null;
       _lastComment = null;
     }
@@ -1085,9 +1143,9 @@
 
   void appendStringToken(TokenType type, String value) {
     if (_firstComment == null) {
-      tail = tail.setNext(new StringToken(type, value, _tokenStart));
+      _tail = _tail.setNext(new StringToken(type, value, _tokenStart));
     } else {
-      tail = tail.setNext(new StringTokenWithComment(type, value, _tokenStart, _firstComment));
+      _tail = _tail.setNext(new StringTokenWithComment(type, value, _tokenStart, _firstComment));
       _firstComment = null;
       _lastComment = null;
     }
@@ -1095,9 +1153,9 @@
 
   void appendStringToken2(TokenType type, String value, int offset) {
     if (_firstComment == null) {
-      tail = tail.setNext(new StringToken(type, value, _tokenStart + offset));
+      _tail = _tail.setNext(new StringToken(type, value, _tokenStart + offset));
     } else {
-      tail = tail.setNext(new StringTokenWithComment(type, value, _tokenStart + offset, _firstComment));
+      _tail = _tail.setNext(new StringTokenWithComment(type, value, _tokenStart + offset, _firstComment));
       _firstComment = null;
       _lastComment = null;
     }
@@ -1105,9 +1163,9 @@
 
   void appendToken2(TokenType type) {
     if (_firstComment == null) {
-      tail = tail.setNext(new Token(type, _tokenStart));
+      _tail = _tail.setNext(new Token(type, _tokenStart));
     } else {
-      tail = tail.setNext(new TokenWithComment(type, _tokenStart, _firstComment));
+      _tail = _tail.setNext(new TokenWithComment(type, _tokenStart, _firstComment));
       _firstComment = null;
       _lastComment = null;
     }
@@ -1115,9 +1173,9 @@
 
   void appendToken3(TokenType type, int offset) {
     if (_firstComment == null) {
-      tail = tail.setNext(new Token(type, offset));
+      _tail = _tail.setNext(new Token(type, offset));
     } else {
-      tail = tail.setNext(new TokenWithComment(type, offset, _firstComment));
+      _tail = _tail.setNext(new TokenWithComment(type, offset, _firstComment));
       _firstComment = null;
       _lastComment = null;
     }
@@ -1805,7 +1863,7 @@
   /**
    * The type of the token.
    */
-  TokenType type;
+  final TokenType type;
 
   /**
    * The offset from the beginning of the file to the first character in the token.
@@ -1820,7 +1878,7 @@
   /**
    * The next token in the token stream.
    */
-  Token next;
+  Token _next;
 
   /**
    * Initialize a newly created token to have the given type and offset.
@@ -1828,8 +1886,7 @@
    * @param type the type of the token
    * @param offset the offset from the beginning of the file to the first character in the token
    */
-  Token(TokenType type, int offset) {
-    this.type = type;
+  Token(this.type, int offset) {
     this.offset = offset;
   }
 
@@ -1865,6 +1922,13 @@
   String get lexeme => type.lexeme;
 
   /**
+   * Return the next token in the token stream.
+   *
+   * @return the next token in the token stream
+   */
+  Token get next => _next;
+
+  /**
    * Return the first comment in the list of comments that precede this token, or `null` if
    * there are no comments preceding this token. Additional comments can be reached by following the
    * token stream using [getNext] until `null` is returned.
@@ -1903,7 +1967,7 @@
    * @return the token that was passed in
    */
   Token setNext(Token token) {
-    next = token;
+    _next = token;
     token.previous = this;
     return token;
   }
@@ -1916,7 +1980,7 @@
    * @return the token that was passed in
    */
   Token setNextWithoutSettingPrevious(Token token) {
-    next = token;
+    _next = token;
     return token;
   }
 
@@ -2055,7 +2119,7 @@
   /**
    * The keyword being represented by this token.
    */
-  Keyword keyword;
+  final Keyword keyword;
 
   /**
    * Initialize a newly created token to represent the given keyword.
@@ -2063,9 +2127,7 @@
    * @param keyword the keyword being represented by this token
    * @param offset the offset from the beginning of the file to the first character in the token
    */
-  KeywordToken(Keyword keyword, int offset) : super(TokenType.KEYWORD, offset) {
-    this.keyword = keyword;
-  }
+  KeywordToken(this.keyword, int offset) : super(TokenType.KEYWORD, offset);
 
   Token copy() => new KeywordToken(keyword, offset);
 
@@ -2207,13 +2269,21 @@
    * The precedence of tokens of this class, or `0` if the such tokens do not represent an
    * operator.
    */
-  int precedence = 0;
+  int _precedence = 0;
 
   TokenClass.con1(String name, int ordinal) : this.con2(name, ordinal, 0);
 
   TokenClass.con2(String name, int ordinal, int precedence) : super(name, ordinal) {
-    this.precedence = precedence;
+    this._precedence = precedence;
   }
+
+  /**
+   * Return the precedence of tokens of this class, or `0` if the such tokens do not represent
+   * an operator.
+   *
+   * @return the precedence of tokens of this class
+   */
+  int get precedence => _precedence;
 }
 
 /**
@@ -2479,16 +2549,24 @@
    * The lexeme that defines this type of token, or `null` if there is more than one possible
    * lexeme for this type of token.
    */
-  String lexeme;
+  String _lexeme;
 
   TokenType.con1(String name, int ordinal) : this.con2(name, ordinal, TokenClass.NO_CLASS, null);
 
   TokenType.con2(String name, int ordinal, TokenClass tokenClass, String lexeme) : super(name, ordinal) {
     this._tokenClass = tokenClass == null ? TokenClass.NO_CLASS : tokenClass;
-    this.lexeme = lexeme;
+    this._lexeme = lexeme;
   }
 
   /**
+   * Return the lexeme that defines this type of token, or `null` if there is more than one
+   * possible lexeme for this type of token.
+   *
+   * @return the lexeme that defines this type of token
+   */
+  String get lexeme => _lexeme;
+
+  /**
    * Return the precedence of the token, or `0` if the token does not represent an operator.
    *
    * @return the precedence of the token
@@ -2535,7 +2613,7 @@
    *
    * @return `true` if this type of token represents an increment operator
    */
-  bool get isIncrementOperator => identical(lexeme, "++") || identical(lexeme, "--");
+  bool get isIncrementOperator => identical(_lexeme, "++") || identical(_lexeme, "--");
 
   /**
    * Return `true` if this type of token represents a multiplicative operator.
@@ -2584,7 +2662,7 @@
    *
    * @return `true` if this token type represents an operator that can be defined by users
    */
-  bool get isUserDefinableOperator => identical(lexeme, "==") || identical(lexeme, "~") || identical(lexeme, "[]") || identical(lexeme, "[]=") || identical(lexeme, "*") || identical(lexeme, "/") || identical(lexeme, "%") || identical(lexeme, "~/") || identical(lexeme, "+") || identical(lexeme, "-") || identical(lexeme, "<<") || identical(lexeme, ">>") || identical(lexeme, ">=") || identical(lexeme, ">") || identical(lexeme, "<=") || identical(lexeme, "<") || identical(lexeme, "&") || identical(lexeme, "^") || identical(lexeme, "|");
+  bool get isUserDefinableOperator => identical(_lexeme, "==") || identical(_lexeme, "~") || identical(_lexeme, "[]") || identical(_lexeme, "[]=") || identical(_lexeme, "*") || identical(_lexeme, "/") || identical(_lexeme, "%") || identical(_lexeme, "~/") || identical(_lexeme, "+") || identical(_lexeme, "-") || identical(_lexeme, "<<") || identical(_lexeme, ">>") || identical(_lexeme, ">=") || identical(_lexeme, ">") || identical(_lexeme, "<=") || identical(_lexeme, "<") || identical(_lexeme, "&") || identical(_lexeme, "^") || identical(_lexeme, "|");
 }
 
 class TokenType_EOF extends TokenType {
diff --git a/pkg/analyzer/lib/src/generated/sdk.dart b/pkg/analyzer/lib/src/generated/sdk.dart
index 2329da1..327b3e5 100644
--- a/pkg/analyzer/lib/src/generated/sdk.dart
+++ b/pkg/analyzer/lib/src/generated/sdk.dart
@@ -91,13 +91,13 @@
    * The path to the file defining the library. The path is relative to the `lib` directory
    * within the SDK.
    */
-  String _path = null;
+  String path = null;
 
   /**
    * The name of the category containing the library. Unless otherwise specified in the libraries
    * file all libraries are assumed to be shared between server and client.
    */
-  String _category = "Shared";
+  String category = "Shared";
 
   /**
    * A flag indicating whether the library is documented.
@@ -135,10 +135,6 @@
     this._shortName = name;
   }
 
-  String get category => _category;
-
-  String get path => _path;
-
   String get shortName => _shortName;
 
   bool get isDart2JsLibrary => (_platforms & DART2JS_PLATFORM) != 0;
@@ -147,12 +143,12 @@
 
   bool get isImplementation => _implementation;
 
-  bool get isInternal => "Internal" == _category;
+  bool get isInternal => "Internal" == category;
 
   /**
    * Return `true` if library can be used for both client and server
    */
-  bool get isShared => _category == "Shared";
+  bool get isShared => category == "Shared";
 
   /**
    * Return `true` if this library can be run on the VM.
@@ -162,15 +158,6 @@
   bool get isVmLibrary => (_platforms & VM_PLATFORM) != 0;
 
   /**
-   * Set the name of the category containing the library to the given name.
-   *
-   * @param category the name of the category containing the library
-   */
-  void set category(String category) {
-    this._category = category;
-  }
-
-  /**
    * Record that this library can be compiled to JavaScript by dart2js.
    */
   void setDart2JsLibrary() {
@@ -196,16 +183,6 @@
   }
 
   /**
-   * Set the path to the file defining the library to the given path. The path is relative to the
-   * `lib` directory within the SDK.
-   *
-   * @param path the path to the file defining the library
-   */
-  void set path(String path) {
-    this._path = path;
-  }
-
-  /**
    * Record that this library can be run on the VM.
    */
   void setVmLibrary() {
diff --git a/pkg/analyzer/lib/src/generated/sdk_io.dart b/pkg/analyzer/lib/src/generated/sdk_io.dart
index e06e06b..018b655 100644
--- a/pkg/analyzer/lib/src/generated/sdk_io.dart
+++ b/pkg/analyzer/lib/src/generated/sdk_io.dart
@@ -29,7 +29,7 @@
   /**
    * The directory containing the SDK.
    */
-  JavaFile directory;
+  JavaFile _sdkDirectory;
 
   /**
    * The revision number of this SDK, or `"0"` if the revision number cannot be discovered.
@@ -173,7 +173,7 @@
    * @param sdkDirectory the directory containing the SDK
    */
   DirectoryBasedDartSdk(JavaFile sdkDirectory) {
-    this.directory = sdkDirectory.getAbsoluteFile();
+    this._sdkDirectory = sdkDirectory.getAbsoluteFile();
     initializeSdk();
     initializeLibraryMap();
     _analysisContext = new AnalysisContextImpl();
@@ -194,7 +194,7 @@
    * @param sdkDirectory the directory containing the SDK
    */
   DirectoryBasedDartSdk.con1(JavaFile sdkDirectory, bool ignored) {
-    this.directory = sdkDirectory.getAbsoluteFile();
+    this._sdkDirectory = sdkDirectory.getAbsoluteFile();
     initializeSdk();
     initializeLibraryMap();
     _analysisContext = new AnalysisContextImpl();
@@ -234,14 +234,21 @@
    *
    * @return the directory where dartium can be found
    */
-  JavaFile get dartiumWorkingDirectory => new JavaFile.relative(directory.getParentFile(), _CHROMIUM_DIRECTORY_NAME);
+  JavaFile get dartiumWorkingDirectory => new JavaFile.relative(_sdkDirectory.getParentFile(), _CHROMIUM_DIRECTORY_NAME);
+
+  /**
+   * Return the directory containing the SDK.
+   *
+   * @return the directory containing the SDK
+   */
+  JavaFile get directory => _sdkDirectory;
 
   /**
    * Return the directory containing documentation for the SDK.
    *
    * @return the SDK's documentation directory
    */
-  JavaFile get docDirectory => new JavaFile.relative(directory, _DOCS_DIRECTORY_NAME);
+  JavaFile get docDirectory => new JavaFile.relative(_sdkDirectory, _DOCS_DIRECTORY_NAME);
 
   /**
    * Return the auxiliary documentation file for the given library, or `null` if no such file
@@ -269,7 +276,7 @@
    *
    * @return the directory that contains the libraries
    */
-  JavaFile get libraryDirectory => new JavaFile.relative(directory, _LIB_DIRECTORY_NAME);
+  JavaFile get libraryDirectory => new JavaFile.relative(_sdkDirectory, _LIB_DIRECTORY_NAME);
 
   /**
    * Return the file containing the Pub executable, or `null` if it does not exist.
@@ -278,7 +285,7 @@
    */
   JavaFile get pubExecutable {
     String pubBinaryName = OSUtilities.isWindows() ? _PUB_EXECUTABLE_NAME_WIN : _PUB_EXECUTABLE_NAME;
-    JavaFile file = new JavaFile.relative(new JavaFile.relative(directory, _BIN_DIRECTORY_NAME), pubBinaryName);
+    JavaFile file = new JavaFile.relative(new JavaFile.relative(_sdkDirectory, _BIN_DIRECTORY_NAME), pubBinaryName);
     return file.exists() ? file : null;
   }
 
@@ -296,7 +303,7 @@
     {
       if (_sdkVersion == null) {
         _sdkVersion = DartSdk.DEFAULT_VERSION;
-        JavaFile revisionFile = new JavaFile.relative(directory, _REVISION_FILE_NAME);
+        JavaFile revisionFile = new JavaFile.relative(_sdkDirectory, _REVISION_FILE_NAME);
         try {
           String revision = revisionFile.readAsStringSync();
           if (revision != null) {
@@ -324,7 +331,7 @@
   JavaFile get vmExecutable {
     {
       if (_vmExecutable == null) {
-        JavaFile file = new JavaFile.relative(new JavaFile.relative(directory, _BIN_DIRECTORY_NAME), vmBinaryName);
+        JavaFile file = new JavaFile.relative(new JavaFile.relative(_sdkDirectory, _BIN_DIRECTORY_NAME), vmBinaryName);
         if (file.exists()) {
           _vmExecutable = file;
         }
diff --git a/pkg/analyzer/lib/src/generated/source.dart b/pkg/analyzer/lib/src/generated/source.dart
index f817d7b..1a812c6 100644
--- a/pkg/analyzer/lib/src/generated/source.dart
+++ b/pkg/analyzer/lib/src/generated/source.dart
@@ -17,18 +17,18 @@
   /**
    * Instance of [LocalSourcePredicate] that always returns `false`.
    */
-  static final LocalSourcePredicate _FALSE = new LocalSourcePredicate_15();
+  static final LocalSourcePredicate FALSE = new LocalSourcePredicate_15();
 
   /**
    * Instance of [LocalSourcePredicate] that always returns `true`.
    */
-  static final LocalSourcePredicate _TRUE = new LocalSourcePredicate_16();
+  static final LocalSourcePredicate TRUE = new LocalSourcePredicate_16();
 
   /**
    * Instance of [LocalSourcePredicate] that returns `true` for all [Source]s
    * except of SDK.
    */
-  static final LocalSourcePredicate _NOT_SDK = new LocalSourcePredicate_17();
+  static final LocalSourcePredicate NOT_SDK = new LocalSourcePredicate_17();
 
   /**
    * Determines if the given [Source] is local.
@@ -66,7 +66,7 @@
   /**
    * A cache of content used to override the default content of a source.
    */
-  ContentCache contentCache;
+  ContentCache _contentCache;
 
   /**
    * The resolvers used to resolve absolute URI's.
@@ -85,9 +85,9 @@
    * @param resolvers the resolvers used to resolve absolute URI's
    */
   SourceFactory.con1(ContentCache contentCache, List<UriResolver> resolvers) {
-    this.contentCache = contentCache;
+    this._contentCache = contentCache;
     this._resolvers = resolvers;
-    this._localSourcePredicate = LocalSourcePredicate._NOT_SDK;
+    this._localSourcePredicate = LocalSourcePredicate.NOT_SDK;
   }
 
   /**
@@ -134,7 +134,7 @@
     try {
       Uri uri = parseUriWithException(encoding.substring(1));
       for (UriResolver resolver in _resolvers) {
-        Source result = resolver.fromEncoding(contentCache, kind, uri);
+        Source result = resolver.fromEncoding(_contentCache, kind, uri);
         if (result != null) {
           return result;
         }
@@ -146,6 +146,13 @@
   }
 
   /**
+   * Return a cache of content used to override the default content of a source.
+   *
+   * @return a cache of content used to override the default content of a source
+   */
+  ContentCache get contentCache => _contentCache;
+
+  /**
    * Return the [DartSdk] associated with this [SourceFactory], or `null` if there
    * is no such SDK.
    *
@@ -216,7 +223,7 @@
    * @param contents the new contents of the source
    * @return the original cached contents or `null` if none
    */
-  String setContents(Source source, String contents) => contentCache.setContents(source, contents);
+  String setContents(Source source, String contents) => _contentCache.setContents(source, contents);
 
   /**
    * Sets the [LocalSourcePredicate].
@@ -237,7 +244,7 @@
    * @param source the source whose content is to be returned
    * @return the contents of the given source
    */
-  String getContents(Source source) => contentCache.getContents(source);
+  String getContents(Source source) => _contentCache.getContents(source);
 
   /**
    * Return the modification stamp of the given source, or `null` if this factory does not
@@ -249,7 +256,7 @@
    * @param source the source whose modification stamp is to be returned
    * @return the modification stamp of the given source
    */
-  int getModificationStamp(Source source) => contentCache.getModificationStamp(source);
+  int getModificationStamp(Source source) => _contentCache.getModificationStamp(source);
 
   /**
    * Return a source object representing the URI that results from resolving the given (possibly
@@ -264,7 +271,7 @@
   Source resolveUri2(Source containingSource, Uri containedUri) {
     if (containedUri.isAbsolute) {
       for (UriResolver resolver in _resolvers) {
-        Source result = resolver.resolveAbsolute(contentCache, containedUri);
+        Source result = resolver.resolveAbsolute(_contentCache, containedUri);
         if (result != null) {
           return result;
         }
@@ -549,16 +556,14 @@
   /**
    * The single character encoding used to identify this kind of URI.
    */
-  int encoding = 0;
+  final int encoding;
 
   /**
    * Initialize a newly created URI kind to have the given encoding.
    *
    * @param encoding the single character encoding used to identify this kind of URI.
    */
-  UriKind(String name, int ordinal, int encoding) : super(name, ordinal) {
-    this.encoding = encoding;
-  }
+  UriKind(String name, int ordinal, this.encoding) : super(name, ordinal);
 }
 
 /**
@@ -576,13 +581,13 @@
    * The 0-based index of the first character of the source code for this element, relative to the
    * source buffer in which this element is contained.
    */
-  int offset = 0;
+  final int offset;
 
   /**
    * The number of characters of the source code for this element, relative to the source buffer in
    * which this element is contained.
    */
-  int length = 0;
+  final int length;
 
   /**
    * Initialize a newly created source range using the given offset and the given length.
@@ -590,10 +595,7 @@
    * @param offset the given offset
    * @param length the given length
    */
-  SourceRange(int offset, int length) {
-    this.offset = offset;
-    this.length = length;
-  }
+  SourceRange(this.offset, this.length);
 
   /**
    * @return `true` if <code>x</code> is in [offset, offset + length) interval.
@@ -715,7 +717,7 @@
   /**
    * The Dart SDK against which URI's are to be resolved.
    */
-  DartSdk dartSdk;
+  DartSdk _sdk;
 
   /**
    * The name of the `dart` scheme.
@@ -737,21 +739,28 @@
    * @param sdk the Dart SDK against which URI's are to be resolved
    */
   DartUriResolver(DartSdk sdk) {
-    this.dartSdk = sdk;
+    this._sdk = sdk;
   }
 
   Source fromEncoding(ContentCache contentCache, UriKind kind, Uri uri) {
     if (identical(kind, UriKind.DART_URI)) {
-      return dartSdk.fromEncoding(contentCache, kind, uri);
+      return _sdk.fromEncoding(contentCache, kind, uri);
     }
     return null;
   }
 
+  /**
+   * Return the [DartSdk] against which URIs are to be resolved.
+   *
+   * @return the [DartSdk] against which URIs are to be resolved.
+   */
+  DartSdk get dartSdk => _sdk;
+
   Source resolveAbsolute(ContentCache contentCache, Uri uri) {
     if (!isDartUri(uri)) {
       return null;
     }
-    return dartSdk.mapDartUri(uri.toString());
+    return _sdk.mapDartUri(uri.toString());
   }
 }
 
@@ -807,12 +816,12 @@
   /**
    * The one-based index of the line containing the character.
    */
-  int lineNumber = 0;
+  final int lineNumber;
 
   /**
    * The one-based index of the column containing the character.
    */
-  int columnNumber = 0;
+  final int columnNumber;
 
   /**
    * Initialize a newly created location to represent the location of the character at the given
@@ -821,10 +830,7 @@
    * @param lineNumber the one-based index of the line containing the character
    * @param columnNumber the one-based index of the column containing the character
    */
-  LineInfo_Location(int lineNumber, int columnNumber) {
-    this.lineNumber = lineNumber;
-    this.columnNumber = columnNumber;
-  }
+  LineInfo_Location(this.lineNumber, this.columnNumber);
 }
 
 /**
@@ -884,7 +890,11 @@
       _stampMap.remove(source);
       return _contentMap.remove(source);
     } else {
-      _stampMap[source] = JavaSystem.currentTimeMillis();
+      int newStamp = JavaSystem.currentTimeMillis();
+      int oldStamp = javaMapPut(_stampMap, source, newStamp);
+      if (newStamp == oldStamp) {
+        _stampMap[source] = newStamp + 1;
+      }
       return javaMapPut(_contentMap, source, contents);
     }
   }
diff --git a/pkg/analyzer/lib/src/generated/source_io.dart b/pkg/analyzer/lib/src/generated/source_io.dart
index 60bc557..60fe02c 100644
--- a/pkg/analyzer/lib/src/generated/source_io.dart
+++ b/pkg/analyzer/lib/src/generated/source_io.dart
@@ -19,18 +19,18 @@
   /**
    * Instance of [LocalSourcePredicate] that always returns `false`.
    */
-  static final LocalSourcePredicate _FALSE = new LocalSourcePredicate_15();
+  static final LocalSourcePredicate FALSE = new LocalSourcePredicate_15();
 
   /**
    * Instance of [LocalSourcePredicate] that always returns `true`.
    */
-  static final LocalSourcePredicate _TRUE = new LocalSourcePredicate_16();
+  static final LocalSourcePredicate TRUE = new LocalSourcePredicate_16();
 
   /**
    * Instance of [LocalSourcePredicate] that returns `true` for all [Source]s
    * except of SDK.
    */
-  static final LocalSourcePredicate _NOT_SDK = new LocalSourcePredicate_17();
+  static final LocalSourcePredicate NOT_SDK = new LocalSourcePredicate_17();
 
   /**
    * Determines if the given [Source] is local.
@@ -68,7 +68,7 @@
   /**
    * The file represented by this source.
    */
-  JavaFile file;
+  JavaFile _file;
 
   /**
    * The cached encoding for this source.
@@ -98,13 +98,13 @@
    */
   FileBasedSource.con2(ContentCache contentCache, JavaFile file, UriKind uriKind) {
     this._contentCache = contentCache;
-    this.file = file;
+    this._file = file;
     this._uriKind = uriKind;
   }
 
-  bool operator ==(Object object) => object != null && this.runtimeType == object.runtimeType && file == (object as FileBasedSource).file;
+  bool operator ==(Object object) => object != null && this.runtimeType == object.runtimeType && _file == (object as FileBasedSource)._file;
 
-  bool exists() => _contentCache.getContents(this) != null || (file.exists() && !file.isDirectory());
+  bool exists() => _contentCache.getContents(this) != null || (_file.exists() && !_file.isDirectory());
 
   void getContents(Source_ContentReceiver receiver) {
     String contents = _contentCache.getContents(this);
@@ -117,26 +117,26 @@
 
   String get encoding {
     if (_encoding == null) {
-      _encoding = "${_uriKind.encoding}${file.toURI().toString()}";
+      _encoding = "${_uriKind.encoding}${_file.toURI().toString()}";
     }
     return _encoding;
   }
 
-  String get fullName => file.getAbsolutePath();
+  String get fullName => _file.getAbsolutePath();
 
   int get modificationStamp {
     int stamp = _contentCache.getModificationStamp(this);
     if (stamp != null) {
       return stamp;
     }
-    return file.lastModified();
+    return _file.lastModified();
   }
 
-  String get shortName => file.getName();
+  String get shortName => _file.getName();
 
   UriKind get uriKind => _uriKind;
 
-  int get hashCode => file.hashCode;
+  int get hashCode => _file.hashCode;
 
   bool get isInSystemLibrary => identical(_uriKind, UriKind.DART_URI);
 
@@ -150,10 +150,10 @@
   }
 
   String toString() {
-    if (file == null) {
+    if (_file == null) {
       return "<unknown source>";
     }
-    return file.getAbsolutePath();
+    return _file.getAbsolutePath();
   }
 
   /**
@@ -171,6 +171,14 @@
     }
     receiver.accept2(file.readAsStringSync(), file.lastModified());
   }
+
+  /**
+   * Return the file represented by this source. This is an internal method that is only intended to
+   * be used by [UriResolver].
+   *
+   * @return the file represented by this source
+   */
+  JavaFile get file => _file;
 }
 
 /**
@@ -347,7 +355,7 @@
   /**
    * The container's path (not `null`).
    */
-  String path;
+  String _path;
 
   /**
    * Construct a container representing the specified directory and containing any sources whose
@@ -366,16 +374,23 @@
    * @param path the path (not `null` and not empty)
    */
   DirectoryBasedSourceContainer.con2(String path) {
-    this.path = appendFileSeparator(path);
+    this._path = appendFileSeparator(path);
   }
 
-  bool contains(Source source) => source.fullName.startsWith(path);
+  bool contains(Source source) => source.fullName.startsWith(_path);
 
   bool operator ==(Object obj) => (obj is DirectoryBasedSourceContainer) && (obj as DirectoryBasedSourceContainer).path == path;
 
-  int get hashCode => path.hashCode;
+  /**
+   * Answer the receiver's path, used to determine if a source is contained in the receiver.
+   *
+   * @return the path (not `null`, not empty)
+   */
+  String get path => _path;
 
-  String toString() => "SourceContainer[${path}]";
+  int get hashCode => _path.hashCode;
+
+  String toString() => "SourceContainer[${_path}]";
 }
 
 /**
diff --git a/pkg/analyzer/lib/src/generated/utilities_dart.dart b/pkg/analyzer/lib/src/generated/utilities_dart.dart
index 5344a94..bfefac5 100644
--- a/pkg/analyzer/lib/src/generated/utilities_dart.dart
+++ b/pkg/analyzer/lib/src/generated/utilities_dart.dart
@@ -24,7 +24,7 @@
   /**
    * A flag indicating whether this is an optional parameter.
    */
-  bool isOptional = false;
+  bool _isOptional2 = false;
 
   /**
    * Initialize a newly created kind with the given state.
@@ -32,6 +32,13 @@
    * @param isOptional `true` if this is an optional parameter
    */
   ParameterKind(String name, int ordinal, bool isOptional) : super(name, ordinal) {
-    this.isOptional = isOptional;
+    this._isOptional2 = isOptional;
   }
+
+  /**
+   * Return `true` if this is an optional parameter.
+   *
+   * @return `true` if this is an optional parameter
+   */
+  bool get isOptional => _isOptional2;
 }
\ No newline at end of file
diff --git a/pkg/analyzer/lib/src/generated/utilities_general.dart b/pkg/analyzer/lib/src/generated/utilities_general.dart
index d90cc3b..2d7b26d 100644
--- a/pkg/analyzer/lib/src/generated/utilities_general.dart
+++ b/pkg/analyzer/lib/src/generated/utilities_general.dart
@@ -9,7 +9,12 @@
  * Helper for measuring how much time is spent doing some operation.
  */
 class TimeCounter {
-  int result = 0;
+  int _result = 0;
+
+  /**
+   * @return the number of milliseconds spent between [start] and [stop].
+   */
+  int get result => _result;
 
   /**
    * Starts counting time.
@@ -34,7 +39,7 @@
    */
   void stop() {
     {
-      TimeCounter_this.result += JavaSystem.currentTimeMillis() - _startTime;
+      TimeCounter_this._result += JavaSystem.currentTimeMillis() - _startTime;
     }
   }
 }
\ No newline at end of file
diff --git a/pkg/analyzer/pubspec.yaml b/pkg/analyzer/pubspec.yaml
index fc47861..bc61dc1 100644
--- a/pkg/analyzer/pubspec.yaml
+++ b/pkg/analyzer/pubspec.yaml
@@ -1,12 +1,12 @@
 name: analyzer
-version: 0.10.3
+version: 0.11.1
 author: Dart Team <misc@dartlang.org>
 description: Static analyzer for Dart.
 homepage: http://www.dartlang.org
 dependencies:
   args: ">=0.9.0 <0.10.0"
   logging: ">=0.9.0 <0.10.0"
-  path: ">=0.9.0 <0.10.0"
+  path: ">=0.9.0 <2.0.0"
 dev_dependencies:
   unittest: ">=0.9.0 <0.10.0"
 environment:
diff --git a/pkg/analyzer/test/generated/ast_test.dart b/pkg/analyzer/test/generated/ast_test.dart
index ab7d96c..2d5f33a 100644
--- a/pkg/analyzer/test/generated/ast_test.dart
+++ b/pkg/analyzer/test/generated/ast_test.dart
@@ -211,6 +211,30 @@
   }
 }
 
+class ClassDeclarationTest extends ParserTestCase {
+  void test_getField() {
+    VariableDeclaration aVar = ASTFactory.variableDeclaration("a");
+    VariableDeclaration bVar = ASTFactory.variableDeclaration("b");
+    VariableDeclaration cVar = ASTFactory.variableDeclaration("c");
+    ClassDeclaration clazz = ASTFactory.classDeclaration(null, "Test", null, null, null, null, [
+        ASTFactory.fieldDeclaration2(false, null, [aVar]),
+        ASTFactory.fieldDeclaration2(false, null, [bVar, cVar])]);
+    JUnitTestCase.assertSame(aVar, clazz.getField("a"));
+    JUnitTestCase.assertSame(bVar, clazz.getField("b"));
+    JUnitTestCase.assertSame(cVar, clazz.getField("c"));
+    JUnitTestCase.assertSame(null, clazz.getField("noSuchField"));
+  }
+
+  static dartSuite() {
+    _ut.group('ClassDeclarationTest', () {
+      _ut.test('test_getField', () {
+        final __test = new ClassDeclarationTest();
+        runJUnitTest(__test, __test.test_getField);
+      });
+    });
+  }
+}
+
 class VariableDeclarationTest extends ParserTestCase {
   void test_getDocumentationComment_onGrandParent() {
     VariableDeclaration varDecl = ASTFactory.variableDeclaration("a");
@@ -256,43 +280,43 @@
  * 'identifier' rather than 'prefixedIdentifier', or 'integer' rather than 'integerLiteral'.
  */
 class ASTFactory {
-  static AdjacentStrings adjacentStrings(List<StringLiteral> strings) => new AdjacentStrings.full(list(strings));
+  static AdjacentStrings adjacentStrings(List<StringLiteral> strings) => new AdjacentStrings(list(strings));
 
-  static Annotation annotation(Identifier name) => new Annotation.full(TokenFactory.token3(TokenType.AT), name, null, null, null);
+  static Annotation annotation(Identifier name) => new Annotation(TokenFactory.token3(TokenType.AT), name, null, null, null);
 
-  static Annotation annotation2(Identifier name, SimpleIdentifier constructorName, ArgumentList arguments) => new Annotation.full(TokenFactory.token3(TokenType.AT), name, TokenFactory.token3(TokenType.PERIOD), constructorName, arguments);
+  static Annotation annotation2(Identifier name, SimpleIdentifier constructorName, ArgumentList arguments) => new Annotation(TokenFactory.token3(TokenType.AT), name, TokenFactory.token3(TokenType.PERIOD), constructorName, arguments);
 
-  static ArgumentDefinitionTest argumentDefinitionTest(String identifier) => new ArgumentDefinitionTest.full(TokenFactory.token3(TokenType.QUESTION), identifier3(identifier));
+  static ArgumentDefinitionTest argumentDefinitionTest(String identifier) => new ArgumentDefinitionTest(TokenFactory.token3(TokenType.QUESTION), identifier3(identifier));
 
-  static ArgumentList argumentList(List<Expression> arguments) => new ArgumentList.full(TokenFactory.token3(TokenType.OPEN_PAREN), list(arguments), TokenFactory.token3(TokenType.CLOSE_PAREN));
+  static ArgumentList argumentList(List<Expression> arguments) => new ArgumentList(TokenFactory.token3(TokenType.OPEN_PAREN), list(arguments), TokenFactory.token3(TokenType.CLOSE_PAREN));
 
-  static AsExpression asExpression(Expression expression, TypeName type) => new AsExpression.full(expression, TokenFactory.token(Keyword.AS), type);
+  static AsExpression asExpression(Expression expression, TypeName type) => new AsExpression(expression, TokenFactory.token(Keyword.AS), type);
 
-  static AssertStatement assertStatement(Expression condition) => new AssertStatement.full(TokenFactory.token(Keyword.ASSERT), TokenFactory.token3(TokenType.OPEN_PAREN), condition, TokenFactory.token3(TokenType.CLOSE_PAREN), TokenFactory.token3(TokenType.SEMICOLON));
+  static AssertStatement assertStatement(Expression condition) => new AssertStatement(TokenFactory.token(Keyword.ASSERT), TokenFactory.token3(TokenType.OPEN_PAREN), condition, TokenFactory.token3(TokenType.CLOSE_PAREN), TokenFactory.token3(TokenType.SEMICOLON));
 
-  static AssignmentExpression assignmentExpression(Expression leftHandSide, TokenType operator, Expression rightHandSide) => new AssignmentExpression.full(leftHandSide, TokenFactory.token3(operator), rightHandSide);
+  static AssignmentExpression assignmentExpression(Expression leftHandSide, TokenType operator, Expression rightHandSide) => new AssignmentExpression(leftHandSide, TokenFactory.token3(operator), rightHandSide);
 
-  static BinaryExpression binaryExpression(Expression leftOperand, TokenType operator, Expression rightOperand) => new BinaryExpression.full(leftOperand, TokenFactory.token3(operator), rightOperand);
+  static BinaryExpression binaryExpression(Expression leftOperand, TokenType operator, Expression rightOperand) => new BinaryExpression(leftOperand, TokenFactory.token3(operator), rightOperand);
 
-  static Block block(List<Statement> statements) => new Block.full(TokenFactory.token3(TokenType.OPEN_CURLY_BRACKET), list(statements), TokenFactory.token3(TokenType.CLOSE_CURLY_BRACKET));
+  static Block block(List<Statement> statements) => new Block(TokenFactory.token3(TokenType.OPEN_CURLY_BRACKET), list(statements), TokenFactory.token3(TokenType.CLOSE_CURLY_BRACKET));
 
-  static BlockFunctionBody blockFunctionBody(Block block) => new BlockFunctionBody.full(block);
+  static BlockFunctionBody blockFunctionBody(Block block) => new BlockFunctionBody(block);
 
-  static BlockFunctionBody blockFunctionBody2(List<Statement> statements) => new BlockFunctionBody.full(block(statements));
+  static BlockFunctionBody blockFunctionBody2(List<Statement> statements) => new BlockFunctionBody(block(statements));
 
-  static BooleanLiteral booleanLiteral(bool value) => new BooleanLiteral.full(value ? TokenFactory.token(Keyword.TRUE) : TokenFactory.token(Keyword.FALSE), value);
+  static BooleanLiteral booleanLiteral(bool value) => new BooleanLiteral(value ? TokenFactory.token(Keyword.TRUE) : TokenFactory.token(Keyword.FALSE), value);
 
-  static BreakStatement breakStatement() => new BreakStatement.full(TokenFactory.token(Keyword.BREAK), null, TokenFactory.token3(TokenType.SEMICOLON));
+  static BreakStatement breakStatement() => new BreakStatement(TokenFactory.token(Keyword.BREAK), null, TokenFactory.token3(TokenType.SEMICOLON));
 
-  static BreakStatement breakStatement2(String label) => new BreakStatement.full(TokenFactory.token(Keyword.BREAK), identifier3(label), TokenFactory.token3(TokenType.SEMICOLON));
+  static BreakStatement breakStatement2(String label) => new BreakStatement(TokenFactory.token(Keyword.BREAK), identifier3(label), TokenFactory.token3(TokenType.SEMICOLON));
 
-  static IndexExpression cascadedIndexExpression(Expression index) => new IndexExpression.forCascade_full(TokenFactory.token3(TokenType.PERIOD_PERIOD), TokenFactory.token3(TokenType.OPEN_SQUARE_BRACKET), index, TokenFactory.token3(TokenType.CLOSE_SQUARE_BRACKET));
+  static IndexExpression cascadedIndexExpression(Expression index) => new IndexExpression.forCascade(TokenFactory.token3(TokenType.PERIOD_PERIOD), TokenFactory.token3(TokenType.OPEN_SQUARE_BRACKET), index, TokenFactory.token3(TokenType.CLOSE_SQUARE_BRACKET));
 
-  static MethodInvocation cascadedMethodInvocation(String methodName, List<Expression> arguments) => new MethodInvocation.full(null, TokenFactory.token3(TokenType.PERIOD_PERIOD), identifier3(methodName), argumentList(arguments));
+  static MethodInvocation cascadedMethodInvocation(String methodName, List<Expression> arguments) => new MethodInvocation(null, TokenFactory.token3(TokenType.PERIOD_PERIOD), identifier3(methodName), argumentList(arguments));
 
-  static PropertyAccess cascadedPropertyAccess(String propertyName) => new PropertyAccess.full(null, TokenFactory.token3(TokenType.PERIOD_PERIOD), identifier3(propertyName));
+  static PropertyAccess cascadedPropertyAccess(String propertyName) => new PropertyAccess(null, TokenFactory.token3(TokenType.PERIOD_PERIOD), identifier3(propertyName));
 
-  static CascadeExpression cascadeExpression(Expression target, List<Expression> cascadeSections) => new CascadeExpression.full(target, list(cascadeSections));
+  static CascadeExpression cascadeExpression(Expression target, List<Expression> cascadeSections) => new CascadeExpression(target, list(cascadeSections));
 
   static CatchClause catchClause(String exceptionParameter, List<Statement> statements) => catchClause5(null, exceptionParameter, null, statements);
 
@@ -302,11 +326,11 @@
 
   static CatchClause catchClause4(TypeName exceptionType, String exceptionParameter, List<Statement> statements) => catchClause5(exceptionType, exceptionParameter, null, statements);
 
-  static CatchClause catchClause5(TypeName exceptionType, String exceptionParameter, String stackTraceParameter, List<Statement> statements) => new CatchClause.full(exceptionType == null ? null : TokenFactory.token4(TokenType.IDENTIFIER, "on"), exceptionType, exceptionParameter == null ? null : TokenFactory.token(Keyword.CATCH), exceptionParameter == null ? null : TokenFactory.token3(TokenType.OPEN_PAREN), identifier3(exceptionParameter), stackTraceParameter == null ? null : TokenFactory.token3(TokenType.COMMA), stackTraceParameter == null ? null : identifier3(stackTraceParameter), exceptionParameter == null ? null : TokenFactory.token3(TokenType.CLOSE_PAREN), block(statements));
+  static CatchClause catchClause5(TypeName exceptionType, String exceptionParameter, String stackTraceParameter, List<Statement> statements) => new CatchClause(exceptionType == null ? null : TokenFactory.token4(TokenType.IDENTIFIER, "on"), exceptionType, exceptionParameter == null ? null : TokenFactory.token(Keyword.CATCH), exceptionParameter == null ? null : TokenFactory.token3(TokenType.OPEN_PAREN), identifier3(exceptionParameter), stackTraceParameter == null ? null : TokenFactory.token3(TokenType.COMMA), stackTraceParameter == null ? null : identifier3(stackTraceParameter), exceptionParameter == null ? null : TokenFactory.token3(TokenType.CLOSE_PAREN), block(statements));
 
-  static ClassDeclaration classDeclaration(Keyword abstractKeyword, String name, TypeParameterList typeParameters, ExtendsClause extendsClause, WithClause withClause, ImplementsClause implementsClause, List<ClassMember> members) => new ClassDeclaration.full(null, null, abstractKeyword == null ? null : TokenFactory.token(abstractKeyword), TokenFactory.token(Keyword.CLASS), identifier3(name), typeParameters, extendsClause, withClause, implementsClause, TokenFactory.token3(TokenType.OPEN_CURLY_BRACKET), list(members), TokenFactory.token3(TokenType.CLOSE_CURLY_BRACKET));
+  static ClassDeclaration classDeclaration(Keyword abstractKeyword, String name, TypeParameterList typeParameters, ExtendsClause extendsClause, WithClause withClause, ImplementsClause implementsClause, List<ClassMember> members) => new ClassDeclaration(null, null, abstractKeyword == null ? null : TokenFactory.token(abstractKeyword), TokenFactory.token(Keyword.CLASS), identifier3(name), typeParameters, extendsClause, withClause, implementsClause, TokenFactory.token3(TokenType.OPEN_CURLY_BRACKET), list(members), TokenFactory.token3(TokenType.CLOSE_CURLY_BRACKET));
 
-  static ClassTypeAlias classTypeAlias(String name, TypeParameterList typeParameters, Keyword abstractKeyword, TypeName superclass, WithClause withClause, ImplementsClause implementsClause) => new ClassTypeAlias.full(null, null, TokenFactory.token(Keyword.CLASS), identifier3(name), typeParameters, TokenFactory.token3(TokenType.EQ), abstractKeyword == null ? null : TokenFactory.token(abstractKeyword), superclass, withClause, implementsClause, TokenFactory.token3(TokenType.SEMICOLON));
+  static ClassTypeAlias classTypeAlias(String name, TypeParameterList typeParameters, Keyword abstractKeyword, TypeName superclass, WithClause withClause, ImplementsClause implementsClause) => new ClassTypeAlias(null, null, TokenFactory.token(Keyword.CLASS), identifier3(name), typeParameters, TokenFactory.token3(TokenType.EQ), abstractKeyword == null ? null : TokenFactory.token(abstractKeyword), superclass, withClause, implementsClause, TokenFactory.token3(TokenType.SEMICOLON));
 
   static CompilationUnit compilationUnit() => compilationUnit8(null, null, null);
 
@@ -322,142 +346,142 @@
 
   static CompilationUnit compilationUnit7(String scriptTag, List<Directive> directives) => compilationUnit8(scriptTag, list(directives), null);
 
-  static CompilationUnit compilationUnit8(String scriptTag, List<Directive> directives, List<CompilationUnitMember> declarations) => new CompilationUnit.full(TokenFactory.token3(TokenType.EOF), scriptTag == null ? null : ASTFactory.scriptTag(scriptTag), directives == null ? new List<Directive>() : directives, declarations == null ? new List<CompilationUnitMember>() : declarations, TokenFactory.token3(TokenType.EOF));
+  static CompilationUnit compilationUnit8(String scriptTag, List<Directive> directives, List<CompilationUnitMember> declarations) => new CompilationUnit(TokenFactory.token3(TokenType.EOF), scriptTag == null ? null : ASTFactory.scriptTag(scriptTag), directives == null ? new List<Directive>() : directives, declarations == null ? new List<CompilationUnitMember>() : declarations, TokenFactory.token3(TokenType.EOF));
 
-  static ConditionalExpression conditionalExpression(Expression condition, Expression thenExpression, Expression elseExpression) => new ConditionalExpression.full(condition, TokenFactory.token3(TokenType.QUESTION), thenExpression, TokenFactory.token3(TokenType.COLON), elseExpression);
+  static ConditionalExpression conditionalExpression(Expression condition, Expression thenExpression, Expression elseExpression) => new ConditionalExpression(condition, TokenFactory.token3(TokenType.QUESTION), thenExpression, TokenFactory.token3(TokenType.COLON), elseExpression);
 
-  static ConstructorDeclaration constructorDeclaration(Identifier returnType, String name, FormalParameterList parameters, List<ConstructorInitializer> initializers) => new ConstructorDeclaration.full(null, null, TokenFactory.token(Keyword.EXTERNAL), null, null, returnType, name == null ? null : TokenFactory.token3(TokenType.PERIOD), name == null ? null : identifier3(name), parameters, initializers == null || initializers.isEmpty ? null : TokenFactory.token3(TokenType.PERIOD), initializers == null ? new List<ConstructorInitializer>() : initializers, null, emptyFunctionBody());
+  static ConstructorDeclaration constructorDeclaration(Identifier returnType, String name, FormalParameterList parameters, List<ConstructorInitializer> initializers) => new ConstructorDeclaration(null, null, TokenFactory.token(Keyword.EXTERNAL), null, null, returnType, name == null ? null : TokenFactory.token3(TokenType.PERIOD), name == null ? null : identifier3(name), parameters, initializers == null || initializers.isEmpty ? null : TokenFactory.token3(TokenType.PERIOD), initializers == null ? new List<ConstructorInitializer>() : initializers, null, emptyFunctionBody());
 
-  static ConstructorDeclaration constructorDeclaration2(Keyword constKeyword, Keyword factoryKeyword, Identifier returnType, String name, FormalParameterList parameters, List<ConstructorInitializer> initializers, FunctionBody body) => new ConstructorDeclaration.full(null, null, null, constKeyword == null ? null : TokenFactory.token(constKeyword), factoryKeyword == null ? null : TokenFactory.token(factoryKeyword), returnType, name == null ? null : TokenFactory.token3(TokenType.PERIOD), name == null ? null : identifier3(name), parameters, initializers == null || initializers.isEmpty ? null : TokenFactory.token3(TokenType.PERIOD), initializers == null ? new List<ConstructorInitializer>() : initializers, null, body);
+  static ConstructorDeclaration constructorDeclaration2(Keyword constKeyword, Keyword factoryKeyword, Identifier returnType, String name, FormalParameterList parameters, List<ConstructorInitializer> initializers, FunctionBody body) => new ConstructorDeclaration(null, null, null, constKeyword == null ? null : TokenFactory.token(constKeyword), factoryKeyword == null ? null : TokenFactory.token(factoryKeyword), returnType, name == null ? null : TokenFactory.token3(TokenType.PERIOD), name == null ? null : identifier3(name), parameters, initializers == null || initializers.isEmpty ? null : TokenFactory.token3(TokenType.PERIOD), initializers == null ? new List<ConstructorInitializer>() : initializers, null, body);
 
-  static ConstructorFieldInitializer constructorFieldInitializer(bool prefixedWithThis, String fieldName, Expression expression) => new ConstructorFieldInitializer.full(prefixedWithThis ? TokenFactory.token(Keyword.THIS) : null, prefixedWithThis ? TokenFactory.token3(TokenType.PERIOD) : null, identifier3(fieldName), TokenFactory.token3(TokenType.EQ), expression);
+  static ConstructorFieldInitializer constructorFieldInitializer(bool prefixedWithThis, String fieldName, Expression expression) => new ConstructorFieldInitializer(prefixedWithThis ? TokenFactory.token(Keyword.THIS) : null, prefixedWithThis ? TokenFactory.token3(TokenType.PERIOD) : null, identifier3(fieldName), TokenFactory.token3(TokenType.EQ), expression);
 
-  static ConstructorName constructorName(TypeName type, String name) => new ConstructorName.full(type, name == null ? null : TokenFactory.token3(TokenType.PERIOD), name == null ? null : identifier3(name));
+  static ConstructorName constructorName(TypeName type, String name) => new ConstructorName(type, name == null ? null : TokenFactory.token3(TokenType.PERIOD), name == null ? null : identifier3(name));
 
-  static ContinueStatement continueStatement() => new ContinueStatement.full(TokenFactory.token(Keyword.CONTINUE), null, TokenFactory.token3(TokenType.SEMICOLON));
+  static ContinueStatement continueStatement() => new ContinueStatement(TokenFactory.token(Keyword.CONTINUE), null, TokenFactory.token3(TokenType.SEMICOLON));
 
-  static ContinueStatement continueStatement2(String label) => new ContinueStatement.full(TokenFactory.token(Keyword.CONTINUE), identifier3(label), TokenFactory.token3(TokenType.SEMICOLON));
+  static ContinueStatement continueStatement2(String label) => new ContinueStatement(TokenFactory.token(Keyword.CONTINUE), identifier3(label), TokenFactory.token3(TokenType.SEMICOLON));
 
   static DeclaredIdentifier declaredIdentifier(Keyword keyword, String identifier) => declaredIdentifier2(keyword, null, identifier);
 
-  static DeclaredIdentifier declaredIdentifier2(Keyword keyword, TypeName type, String identifier) => new DeclaredIdentifier.full(null, null, keyword == null ? null : TokenFactory.token(keyword), type, identifier3(identifier));
+  static DeclaredIdentifier declaredIdentifier2(Keyword keyword, TypeName type, String identifier) => new DeclaredIdentifier(null, null, keyword == null ? null : TokenFactory.token(keyword), type, identifier3(identifier));
 
   static DeclaredIdentifier declaredIdentifier3(String identifier) => declaredIdentifier2(null, null, identifier);
 
   static DeclaredIdentifier declaredIdentifier4(TypeName type, String identifier) => declaredIdentifier2(null, type, identifier);
 
-  static DoStatement doStatement(Statement body, Expression condition) => new DoStatement.full(TokenFactory.token(Keyword.DO), body, TokenFactory.token(Keyword.WHILE), TokenFactory.token3(TokenType.OPEN_PAREN), condition, TokenFactory.token3(TokenType.CLOSE_PAREN), TokenFactory.token3(TokenType.SEMICOLON));
+  static DoStatement doStatement(Statement body, Expression condition) => new DoStatement(TokenFactory.token(Keyword.DO), body, TokenFactory.token(Keyword.WHILE), TokenFactory.token3(TokenType.OPEN_PAREN), condition, TokenFactory.token3(TokenType.CLOSE_PAREN), TokenFactory.token3(TokenType.SEMICOLON));
 
-  static DoubleLiteral doubleLiteral(double value) => new DoubleLiteral.full(TokenFactory.token2(value.toString()), value);
+  static DoubleLiteral doubleLiteral(double value) => new DoubleLiteral(TokenFactory.token2(value.toString()), value);
 
-  static EmptyFunctionBody emptyFunctionBody() => new EmptyFunctionBody.full(TokenFactory.token3(TokenType.SEMICOLON));
+  static EmptyFunctionBody emptyFunctionBody() => new EmptyFunctionBody(TokenFactory.token3(TokenType.SEMICOLON));
 
-  static EmptyStatement emptyStatement() => new EmptyStatement.full(TokenFactory.token3(TokenType.SEMICOLON));
+  static EmptyStatement emptyStatement() => new EmptyStatement(TokenFactory.token3(TokenType.SEMICOLON));
 
-  static ExportDirective exportDirective(List<Annotation> metadata, String uri, List<Combinator> combinators) => new ExportDirective.full(null, metadata, TokenFactory.token(Keyword.EXPORT), string2(uri), list(combinators), TokenFactory.token3(TokenType.SEMICOLON));
+  static ExportDirective exportDirective(List<Annotation> metadata, String uri, List<Combinator> combinators) => new ExportDirective(null, metadata, TokenFactory.token(Keyword.EXPORT), string2(uri), list(combinators), TokenFactory.token3(TokenType.SEMICOLON));
 
   static ExportDirective exportDirective2(String uri, List<Combinator> combinators) => exportDirective(new List<Annotation>(), uri, combinators);
 
-  static ExpressionFunctionBody expressionFunctionBody(Expression expression) => new ExpressionFunctionBody.full(TokenFactory.token3(TokenType.FUNCTION), expression, TokenFactory.token3(TokenType.SEMICOLON));
+  static ExpressionFunctionBody expressionFunctionBody(Expression expression) => new ExpressionFunctionBody(TokenFactory.token3(TokenType.FUNCTION), expression, TokenFactory.token3(TokenType.SEMICOLON));
 
-  static ExpressionStatement expressionStatement(Expression expression) => new ExpressionStatement.full(expression, TokenFactory.token3(TokenType.SEMICOLON));
+  static ExpressionStatement expressionStatement(Expression expression) => new ExpressionStatement(expression, TokenFactory.token3(TokenType.SEMICOLON));
 
-  static ExtendsClause extendsClause(TypeName type) => new ExtendsClause.full(TokenFactory.token(Keyword.EXTENDS), type);
+  static ExtendsClause extendsClause(TypeName type) => new ExtendsClause(TokenFactory.token(Keyword.EXTENDS), type);
 
-  static FieldDeclaration fieldDeclaration(bool isStatic, Keyword keyword, TypeName type, List<VariableDeclaration> variables) => new FieldDeclaration.full(null, null, isStatic ? TokenFactory.token(Keyword.STATIC) : null, variableDeclarationList(keyword, type, variables), TokenFactory.token3(TokenType.SEMICOLON));
+  static FieldDeclaration fieldDeclaration(bool isStatic, Keyword keyword, TypeName type, List<VariableDeclaration> variables) => new FieldDeclaration(null, null, isStatic ? TokenFactory.token(Keyword.STATIC) : null, variableDeclarationList(keyword, type, variables), TokenFactory.token3(TokenType.SEMICOLON));
 
   static FieldDeclaration fieldDeclaration2(bool isStatic, Keyword keyword, List<VariableDeclaration> variables) => fieldDeclaration(isStatic, keyword, null, variables);
 
-  static FieldFormalParameter fieldFormalParameter(Keyword keyword, TypeName type, String identifier) => new FieldFormalParameter.full(null, null, keyword == null ? null : TokenFactory.token(keyword), type, TokenFactory.token(Keyword.THIS), TokenFactory.token3(TokenType.PERIOD), identifier3(identifier), null);
+  static FieldFormalParameter fieldFormalParameter(Keyword keyword, TypeName type, String identifier) => new FieldFormalParameter(null, null, keyword == null ? null : TokenFactory.token(keyword), type, TokenFactory.token(Keyword.THIS), TokenFactory.token3(TokenType.PERIOD), identifier3(identifier), null);
 
-  static FieldFormalParameter fieldFormalParameter2(Keyword keyword, TypeName type, String identifier, FormalParameterList parameterList) => new FieldFormalParameter.full(null, null, keyword == null ? null : TokenFactory.token(keyword), type, TokenFactory.token(Keyword.THIS), TokenFactory.token3(TokenType.PERIOD), identifier3(identifier), parameterList);
+  static FieldFormalParameter fieldFormalParameter2(Keyword keyword, TypeName type, String identifier, FormalParameterList parameterList) => new FieldFormalParameter(null, null, keyword == null ? null : TokenFactory.token(keyword), type, TokenFactory.token(Keyword.THIS), TokenFactory.token3(TokenType.PERIOD), identifier3(identifier), parameterList);
 
   static FieldFormalParameter fieldFormalParameter3(String identifier) => fieldFormalParameter(null, null, identifier);
 
-  static ForEachStatement forEachStatement(DeclaredIdentifier loopVariable, Expression iterator, Statement body) => new ForEachStatement.con1_full(TokenFactory.token(Keyword.FOR), TokenFactory.token3(TokenType.OPEN_PAREN), loopVariable, TokenFactory.token(Keyword.IN), iterator, TokenFactory.token3(TokenType.CLOSE_PAREN), body);
+  static ForEachStatement forEachStatement(DeclaredIdentifier loopVariable, Expression iterator, Statement body) => new ForEachStatement.con1(TokenFactory.token(Keyword.FOR), TokenFactory.token3(TokenType.OPEN_PAREN), loopVariable, TokenFactory.token(Keyword.IN), iterator, TokenFactory.token3(TokenType.CLOSE_PAREN), body);
 
-  static FormalParameterList formalParameterList(List<FormalParameter> parameters) => new FormalParameterList.full(TokenFactory.token3(TokenType.OPEN_PAREN), list(parameters), null, null, TokenFactory.token3(TokenType.CLOSE_PAREN));
+  static FormalParameterList formalParameterList(List<FormalParameter> parameters) => new FormalParameterList(TokenFactory.token3(TokenType.OPEN_PAREN), list(parameters), null, null, TokenFactory.token3(TokenType.CLOSE_PAREN));
 
-  static ForStatement forStatement(Expression initialization, Expression condition, List<Expression> updaters, Statement body) => new ForStatement.full(TokenFactory.token(Keyword.FOR), TokenFactory.token3(TokenType.OPEN_PAREN), null, initialization, TokenFactory.token3(TokenType.SEMICOLON), condition, TokenFactory.token3(TokenType.SEMICOLON), updaters, TokenFactory.token3(TokenType.CLOSE_PAREN), body);
+  static ForStatement forStatement(Expression initialization, Expression condition, List<Expression> updaters, Statement body) => new ForStatement(TokenFactory.token(Keyword.FOR), TokenFactory.token3(TokenType.OPEN_PAREN), null, initialization, TokenFactory.token3(TokenType.SEMICOLON), condition, TokenFactory.token3(TokenType.SEMICOLON), updaters, TokenFactory.token3(TokenType.CLOSE_PAREN), body);
 
-  static ForStatement forStatement2(VariableDeclarationList variableList, Expression condition, List<Expression> updaters, Statement body) => new ForStatement.full(TokenFactory.token(Keyword.FOR), TokenFactory.token3(TokenType.OPEN_PAREN), variableList, null, TokenFactory.token3(TokenType.SEMICOLON), condition, TokenFactory.token3(TokenType.SEMICOLON), updaters, TokenFactory.token3(TokenType.CLOSE_PAREN), body);
+  static ForStatement forStatement2(VariableDeclarationList variableList, Expression condition, List<Expression> updaters, Statement body) => new ForStatement(TokenFactory.token(Keyword.FOR), TokenFactory.token3(TokenType.OPEN_PAREN), variableList, null, TokenFactory.token3(TokenType.SEMICOLON), condition, TokenFactory.token3(TokenType.SEMICOLON), updaters, TokenFactory.token3(TokenType.CLOSE_PAREN), body);
 
-  static FunctionDeclaration functionDeclaration(TypeName type, Keyword keyword, String name, FunctionExpression functionExpression) => new FunctionDeclaration.full(null, null, null, type, keyword == null ? null : TokenFactory.token(keyword), identifier3(name), functionExpression);
+  static FunctionDeclaration functionDeclaration(TypeName type, Keyword keyword, String name, FunctionExpression functionExpression) => new FunctionDeclaration(null, null, null, type, keyword == null ? null : TokenFactory.token(keyword), identifier3(name), functionExpression);
 
-  static FunctionDeclarationStatement functionDeclarationStatement(TypeName type, Keyword keyword, String name, FunctionExpression functionExpression) => new FunctionDeclarationStatement.full(functionDeclaration(type, keyword, name, functionExpression));
+  static FunctionDeclarationStatement functionDeclarationStatement(TypeName type, Keyword keyword, String name, FunctionExpression functionExpression) => new FunctionDeclarationStatement(functionDeclaration(type, keyword, name, functionExpression));
 
-  static FunctionExpression functionExpression() => new FunctionExpression.full(formalParameterList([]), blockFunctionBody2([]));
+  static FunctionExpression functionExpression() => new FunctionExpression(formalParameterList([]), blockFunctionBody2([]));
 
-  static FunctionExpression functionExpression2(FormalParameterList parameters, FunctionBody body) => new FunctionExpression.full(parameters, body);
+  static FunctionExpression functionExpression2(FormalParameterList parameters, FunctionBody body) => new FunctionExpression(parameters, body);
 
-  static FunctionExpressionInvocation functionExpressionInvocation(Expression function, List<Expression> arguments) => new FunctionExpressionInvocation.full(function, argumentList(arguments));
+  static FunctionExpressionInvocation functionExpressionInvocation(Expression function, List<Expression> arguments) => new FunctionExpressionInvocation(function, argumentList(arguments));
 
-  static FunctionTypedFormalParameter functionTypedFormalParameter(TypeName returnType, String identifier, List<FormalParameter> parameters) => new FunctionTypedFormalParameter.full(null, null, returnType, identifier3(identifier), formalParameterList(parameters));
+  static FunctionTypedFormalParameter functionTypedFormalParameter(TypeName returnType, String identifier, List<FormalParameter> parameters) => new FunctionTypedFormalParameter(null, null, returnType, identifier3(identifier), formalParameterList(parameters));
 
-  static HideCombinator hideCombinator(List<SimpleIdentifier> identifiers) => new HideCombinator.full(TokenFactory.token2("hide"), list(identifiers));
+  static HideCombinator hideCombinator(List<SimpleIdentifier> identifiers) => new HideCombinator(TokenFactory.token2("hide"), list(identifiers));
 
   static HideCombinator hideCombinator2(List<String> identifiers) {
     List<SimpleIdentifier> identifierList = new List<SimpleIdentifier>();
     for (String identifier in identifiers) {
       identifierList.add(identifier3(identifier));
     }
-    return new HideCombinator.full(TokenFactory.token2("hide"), identifierList);
+    return new HideCombinator(TokenFactory.token2("hide"), identifierList);
   }
 
-  static PrefixedIdentifier identifier(SimpleIdentifier prefix, SimpleIdentifier identifier) => new PrefixedIdentifier.full(prefix, TokenFactory.token3(TokenType.PERIOD), identifier);
+  static PrefixedIdentifier identifier(SimpleIdentifier prefix, SimpleIdentifier identifier) => new PrefixedIdentifier(prefix, TokenFactory.token3(TokenType.PERIOD), identifier);
 
-  static SimpleIdentifier identifier3(String lexeme) => new SimpleIdentifier.full(TokenFactory.token4(TokenType.IDENTIFIER, lexeme));
+  static SimpleIdentifier identifier3(String lexeme) => new SimpleIdentifier(TokenFactory.token4(TokenType.IDENTIFIER, lexeme));
 
-  static PrefixedIdentifier identifier4(String prefix, SimpleIdentifier identifier) => new PrefixedIdentifier.full(identifier3(prefix), TokenFactory.token3(TokenType.PERIOD), identifier);
+  static PrefixedIdentifier identifier4(String prefix, SimpleIdentifier identifier) => new PrefixedIdentifier(identifier3(prefix), TokenFactory.token3(TokenType.PERIOD), identifier);
 
-  static PrefixedIdentifier identifier5(String prefix, String identifier) => new PrefixedIdentifier.full(identifier3(prefix), TokenFactory.token3(TokenType.PERIOD), identifier3(identifier));
+  static PrefixedIdentifier identifier5(String prefix, String identifier) => new PrefixedIdentifier(identifier3(prefix), TokenFactory.token3(TokenType.PERIOD), identifier3(identifier));
 
   static IfStatement ifStatement(Expression condition, Statement thenStatement) => ifStatement2(condition, thenStatement, null);
 
-  static IfStatement ifStatement2(Expression condition, Statement thenStatement, Statement elseStatement) => new IfStatement.full(TokenFactory.token(Keyword.IF), TokenFactory.token3(TokenType.OPEN_PAREN), condition, TokenFactory.token3(TokenType.CLOSE_PAREN), thenStatement, elseStatement == null ? null : TokenFactory.token(Keyword.ELSE), elseStatement);
+  static IfStatement ifStatement2(Expression condition, Statement thenStatement, Statement elseStatement) => new IfStatement(TokenFactory.token(Keyword.IF), TokenFactory.token3(TokenType.OPEN_PAREN), condition, TokenFactory.token3(TokenType.CLOSE_PAREN), thenStatement, elseStatement == null ? null : TokenFactory.token(Keyword.ELSE), elseStatement);
 
-  static ImplementsClause implementsClause(List<TypeName> types) => new ImplementsClause.full(TokenFactory.token(Keyword.IMPLEMENTS), list(types));
+  static ImplementsClause implementsClause(List<TypeName> types) => new ImplementsClause(TokenFactory.token(Keyword.IMPLEMENTS), list(types));
 
-  static ImportDirective importDirective(List<Annotation> metadata, String uri, String prefix, List<Combinator> combinators) => new ImportDirective.full(null, metadata, TokenFactory.token(Keyword.IMPORT), string2(uri), prefix == null ? null : TokenFactory.token(Keyword.AS), prefix == null ? null : identifier3(prefix), list(combinators), TokenFactory.token3(TokenType.SEMICOLON));
+  static ImportDirective importDirective(List<Annotation> metadata, String uri, String prefix, List<Combinator> combinators) => new ImportDirective(null, metadata, TokenFactory.token(Keyword.IMPORT), string2(uri), prefix == null ? null : TokenFactory.token(Keyword.AS), prefix == null ? null : identifier3(prefix), list(combinators), TokenFactory.token3(TokenType.SEMICOLON));
 
   static ImportDirective importDirective2(String uri, String prefix, List<Combinator> combinators) => importDirective(new List<Annotation>(), uri, prefix, combinators);
 
-  static IndexExpression indexExpression(Expression array, Expression index) => new IndexExpression.forTarget_full(array, TokenFactory.token3(TokenType.OPEN_SQUARE_BRACKET), index, TokenFactory.token3(TokenType.CLOSE_SQUARE_BRACKET));
+  static IndexExpression indexExpression(Expression array, Expression index) => new IndexExpression.forTarget(array, TokenFactory.token3(TokenType.OPEN_SQUARE_BRACKET), index, TokenFactory.token3(TokenType.CLOSE_SQUARE_BRACKET));
 
-  static InstanceCreationExpression instanceCreationExpression(Keyword keyword, ConstructorName name, List<Expression> arguments) => new InstanceCreationExpression.full(keyword == null ? null : TokenFactory.token(keyword), name, argumentList(arguments));
+  static InstanceCreationExpression instanceCreationExpression(Keyword keyword, ConstructorName name, List<Expression> arguments) => new InstanceCreationExpression(keyword == null ? null : TokenFactory.token(keyword), name, argumentList(arguments));
 
   static InstanceCreationExpression instanceCreationExpression2(Keyword keyword, TypeName type, List<Expression> arguments) => instanceCreationExpression3(keyword, type, null, arguments);
 
-  static InstanceCreationExpression instanceCreationExpression3(Keyword keyword, TypeName type, String identifier, List<Expression> arguments) => instanceCreationExpression(keyword, new ConstructorName.full(type, identifier == null ? null : TokenFactory.token3(TokenType.PERIOD), identifier == null ? null : identifier3(identifier)), arguments);
+  static InstanceCreationExpression instanceCreationExpression3(Keyword keyword, TypeName type, String identifier, List<Expression> arguments) => instanceCreationExpression(keyword, new ConstructorName(type, identifier == null ? null : TokenFactory.token3(TokenType.PERIOD), identifier == null ? null : identifier3(identifier)), arguments);
 
-  static IntegerLiteral integer(int value) => new IntegerLiteral.full(TokenFactory.token4(TokenType.INT, value.toString()), value);
+  static IntegerLiteral integer(int value) => new IntegerLiteral(TokenFactory.token4(TokenType.INT, value.toString()), value);
 
-  static InterpolationExpression interpolationExpression(Expression expression) => new InterpolationExpression.full(TokenFactory.token3(TokenType.STRING_INTERPOLATION_EXPRESSION), expression, TokenFactory.token3(TokenType.CLOSE_CURLY_BRACKET));
+  static InterpolationExpression interpolationExpression(Expression expression) => new InterpolationExpression(TokenFactory.token3(TokenType.STRING_INTERPOLATION_EXPRESSION), expression, TokenFactory.token3(TokenType.CLOSE_CURLY_BRACKET));
 
-  static InterpolationExpression interpolationExpression2(String identifier) => new InterpolationExpression.full(TokenFactory.token3(TokenType.STRING_INTERPOLATION_IDENTIFIER), identifier3(identifier), null);
+  static InterpolationExpression interpolationExpression2(String identifier) => new InterpolationExpression(TokenFactory.token3(TokenType.STRING_INTERPOLATION_IDENTIFIER), identifier3(identifier), null);
 
-  static InterpolationString interpolationString(String contents, String value) => new InterpolationString.full(TokenFactory.token2(contents), value);
+  static InterpolationString interpolationString(String contents, String value) => new InterpolationString(TokenFactory.token2(contents), value);
 
-  static IsExpression isExpression(Expression expression, bool negated, TypeName type) => new IsExpression.full(expression, TokenFactory.token(Keyword.IS), negated ? TokenFactory.token3(TokenType.BANG) : null, type);
+  static IsExpression isExpression(Expression expression, bool negated, TypeName type) => new IsExpression(expression, TokenFactory.token(Keyword.IS), negated ? TokenFactory.token3(TokenType.BANG) : null, type);
 
-  static Label label(SimpleIdentifier label) => new Label.full(label, TokenFactory.token3(TokenType.COLON));
+  static Label label(SimpleIdentifier label) => new Label(label, TokenFactory.token3(TokenType.COLON));
 
   static Label label2(String label) => ASTFactory.label(identifier3(label));
 
-  static LabeledStatement labeledStatement(List<Label> labels, Statement statement) => new LabeledStatement.full(labels, statement);
+  static LabeledStatement labeledStatement(List<Label> labels, Statement statement) => new LabeledStatement(labels, statement);
 
-  static LibraryDirective libraryDirective(List<Annotation> metadata, LibraryIdentifier libraryName) => new LibraryDirective.full(null, metadata, TokenFactory.token(Keyword.LIBRARY), libraryName, TokenFactory.token3(TokenType.SEMICOLON));
+  static LibraryDirective libraryDirective(List<Annotation> metadata, LibraryIdentifier libraryName) => new LibraryDirective(null, metadata, TokenFactory.token(Keyword.LIBRARY), libraryName, TokenFactory.token3(TokenType.SEMICOLON));
 
   static LibraryDirective libraryDirective2(String libraryName) => libraryDirective(new List<Annotation>(), libraryIdentifier2([libraryName]));
 
-  static LibraryIdentifier libraryIdentifier(List<SimpleIdentifier> components) => new LibraryIdentifier.full(list(components));
+  static LibraryIdentifier libraryIdentifier(List<SimpleIdentifier> components) => new LibraryIdentifier(list(components));
 
   static LibraryIdentifier libraryIdentifier2(List<String> components) {
     List<SimpleIdentifier> componentList = new List<SimpleIdentifier>();
     for (String component in components) {
       componentList.add(identifier3(component));
     }
-    return new LibraryIdentifier.full(componentList);
+    return new LibraryIdentifier(componentList);
   }
 
   static List list(List<Object> elements) {
@@ -470,131 +494,131 @@
 
   static ListLiteral listLiteral(List<Expression> elements) => listLiteral2(null, null, elements);
 
-  static ListLiteral listLiteral2(Keyword keyword, TypeArgumentList typeArguments, List<Expression> elements) => new ListLiteral.full(keyword == null ? null : TokenFactory.token(keyword), null, TokenFactory.token3(TokenType.OPEN_SQUARE_BRACKET), list(elements), TokenFactory.token3(TokenType.CLOSE_SQUARE_BRACKET));
+  static ListLiteral listLiteral2(Keyword keyword, TypeArgumentList typeArguments, List<Expression> elements) => new ListLiteral(keyword == null ? null : TokenFactory.token(keyword), null, TokenFactory.token3(TokenType.OPEN_SQUARE_BRACKET), list(elements), TokenFactory.token3(TokenType.CLOSE_SQUARE_BRACKET));
 
-  static MapLiteral mapLiteral(Keyword keyword, TypeArgumentList typeArguments, List<MapLiteralEntry> entries) => new MapLiteral.full(keyword == null ? null : TokenFactory.token(keyword), typeArguments, TokenFactory.token3(TokenType.OPEN_CURLY_BRACKET), list(entries), TokenFactory.token3(TokenType.CLOSE_CURLY_BRACKET));
+  static MapLiteral mapLiteral(Keyword keyword, TypeArgumentList typeArguments, List<MapLiteralEntry> entries) => new MapLiteral(keyword == null ? null : TokenFactory.token(keyword), typeArguments, TokenFactory.token3(TokenType.OPEN_CURLY_BRACKET), list(entries), TokenFactory.token3(TokenType.CLOSE_CURLY_BRACKET));
 
   static MapLiteral mapLiteral2(List<MapLiteralEntry> entries) => mapLiteral(null, null, entries);
 
-  static MapLiteralEntry mapLiteralEntry(String key, Expression value) => new MapLiteralEntry.full(string2(key), TokenFactory.token3(TokenType.COLON), value);
+  static MapLiteralEntry mapLiteralEntry(String key, Expression value) => new MapLiteralEntry(string2(key), TokenFactory.token3(TokenType.COLON), value);
 
-  static MethodDeclaration methodDeclaration(Keyword modifier, TypeName returnType, Keyword property, Keyword operator, SimpleIdentifier name, FormalParameterList parameters) => new MethodDeclaration.full(null, null, TokenFactory.token(Keyword.EXTERNAL), modifier == null ? null : TokenFactory.token(modifier), returnType, property == null ? null : TokenFactory.token(property), operator == null ? null : TokenFactory.token(operator), name, parameters, emptyFunctionBody());
+  static MethodDeclaration methodDeclaration(Keyword modifier, TypeName returnType, Keyword property, Keyword operator, SimpleIdentifier name, FormalParameterList parameters) => new MethodDeclaration(null, null, TokenFactory.token(Keyword.EXTERNAL), modifier == null ? null : TokenFactory.token(modifier), returnType, property == null ? null : TokenFactory.token(property), operator == null ? null : TokenFactory.token(operator), name, parameters, emptyFunctionBody());
 
-  static MethodDeclaration methodDeclaration2(Keyword modifier, TypeName returnType, Keyword property, Keyword operator, SimpleIdentifier name, FormalParameterList parameters, FunctionBody body) => new MethodDeclaration.full(null, null, null, modifier == null ? null : TokenFactory.token(modifier), returnType, property == null ? null : TokenFactory.token(property), operator == null ? null : TokenFactory.token(operator), name, parameters, body);
+  static MethodDeclaration methodDeclaration2(Keyword modifier, TypeName returnType, Keyword property, Keyword operator, SimpleIdentifier name, FormalParameterList parameters, FunctionBody body) => new MethodDeclaration(null, null, null, modifier == null ? null : TokenFactory.token(modifier), returnType, property == null ? null : TokenFactory.token(property), operator == null ? null : TokenFactory.token(operator), name, parameters, body);
 
-  static MethodInvocation methodInvocation(Expression target, String methodName, List<Expression> arguments) => new MethodInvocation.full(target, target == null ? null : TokenFactory.token3(TokenType.PERIOD), identifier3(methodName), argumentList(arguments));
+  static MethodInvocation methodInvocation(Expression target, String methodName, List<Expression> arguments) => new MethodInvocation(target, target == null ? null : TokenFactory.token3(TokenType.PERIOD), identifier3(methodName), argumentList(arguments));
 
   static MethodInvocation methodInvocation2(String methodName, List<Expression> arguments) => methodInvocation(null, methodName, arguments);
 
-  static NamedExpression namedExpression(Label label, Expression expression) => new NamedExpression.full(label, expression);
+  static NamedExpression namedExpression(Label label, Expression expression) => new NamedExpression(label, expression);
 
   static NamedExpression namedExpression2(String label, Expression expression) => namedExpression(label2(label), expression);
 
-  static DefaultFormalParameter namedFormalParameter(NormalFormalParameter parameter, Expression expression) => new DefaultFormalParameter.full(parameter, ParameterKind.NAMED, expression == null ? null : TokenFactory.token3(TokenType.COLON), expression);
+  static DefaultFormalParameter namedFormalParameter(NormalFormalParameter parameter, Expression expression) => new DefaultFormalParameter(parameter, ParameterKind.NAMED, expression == null ? null : TokenFactory.token3(TokenType.COLON), expression);
 
-  static NativeClause nativeClause(String nativeCode) => new NativeClause.full(TokenFactory.token2("native"), string2(nativeCode));
+  static NativeClause nativeClause(String nativeCode) => new NativeClause(TokenFactory.token2("native"), string2(nativeCode));
 
-  static NativeFunctionBody nativeFunctionBody(String nativeMethodName) => new NativeFunctionBody.full(TokenFactory.token2("native"), string2(nativeMethodName), TokenFactory.token3(TokenType.SEMICOLON));
+  static NativeFunctionBody nativeFunctionBody(String nativeMethodName) => new NativeFunctionBody(TokenFactory.token2("native"), string2(nativeMethodName), TokenFactory.token3(TokenType.SEMICOLON));
 
-  static NullLiteral nullLiteral() => new NullLiteral.full(TokenFactory.token(Keyword.NULL));
+  static NullLiteral nullLiteral() => new NullLiteral(TokenFactory.token(Keyword.NULL));
 
-  static ParenthesizedExpression parenthesizedExpression(Expression expression) => new ParenthesizedExpression.full(TokenFactory.token3(TokenType.OPEN_PAREN), expression, TokenFactory.token3(TokenType.CLOSE_PAREN));
+  static ParenthesizedExpression parenthesizedExpression(Expression expression) => new ParenthesizedExpression(TokenFactory.token3(TokenType.OPEN_PAREN), expression, TokenFactory.token3(TokenType.CLOSE_PAREN));
 
-  static PartDirective partDirective(List<Annotation> metadata, String url) => new PartDirective.full(null, metadata, TokenFactory.token(Keyword.PART), string2(url), TokenFactory.token3(TokenType.SEMICOLON));
+  static PartDirective partDirective(List<Annotation> metadata, String url) => new PartDirective(null, metadata, TokenFactory.token(Keyword.PART), string2(url), TokenFactory.token3(TokenType.SEMICOLON));
 
   static PartDirective partDirective2(String url) => partDirective(new List<Annotation>(), url);
 
   static PartOfDirective partOfDirective(LibraryIdentifier libraryName) => partOfDirective2(new List<Annotation>(), libraryName);
 
-  static PartOfDirective partOfDirective2(List<Annotation> metadata, LibraryIdentifier libraryName) => new PartOfDirective.full(null, metadata, TokenFactory.token(Keyword.PART), TokenFactory.token2("of"), libraryName, TokenFactory.token3(TokenType.SEMICOLON));
+  static PartOfDirective partOfDirective2(List<Annotation> metadata, LibraryIdentifier libraryName) => new PartOfDirective(null, metadata, TokenFactory.token(Keyword.PART), TokenFactory.token2("of"), libraryName, TokenFactory.token3(TokenType.SEMICOLON));
 
-  static DefaultFormalParameter positionalFormalParameter(NormalFormalParameter parameter, Expression expression) => new DefaultFormalParameter.full(parameter, ParameterKind.POSITIONAL, expression == null ? null : TokenFactory.token3(TokenType.EQ), expression);
+  static DefaultFormalParameter positionalFormalParameter(NormalFormalParameter parameter, Expression expression) => new DefaultFormalParameter(parameter, ParameterKind.POSITIONAL, expression == null ? null : TokenFactory.token3(TokenType.EQ), expression);
 
-  static PostfixExpression postfixExpression(Expression expression, TokenType operator) => new PostfixExpression.full(expression, TokenFactory.token3(operator));
+  static PostfixExpression postfixExpression(Expression expression, TokenType operator) => new PostfixExpression(expression, TokenFactory.token3(operator));
 
-  static PrefixExpression prefixExpression(TokenType operator, Expression expression) => new PrefixExpression.full(TokenFactory.token3(operator), expression);
+  static PrefixExpression prefixExpression(TokenType operator, Expression expression) => new PrefixExpression(TokenFactory.token3(operator), expression);
 
-  static PropertyAccess propertyAccess(Expression target, SimpleIdentifier propertyName) => new PropertyAccess.full(target, TokenFactory.token3(TokenType.PERIOD), propertyName);
+  static PropertyAccess propertyAccess(Expression target, SimpleIdentifier propertyName) => new PropertyAccess(target, TokenFactory.token3(TokenType.PERIOD), propertyName);
 
-  static PropertyAccess propertyAccess2(Expression target, String propertyName) => new PropertyAccess.full(target, TokenFactory.token3(TokenType.PERIOD), identifier3(propertyName));
+  static PropertyAccess propertyAccess2(Expression target, String propertyName) => new PropertyAccess(target, TokenFactory.token3(TokenType.PERIOD), identifier3(propertyName));
 
   static RedirectingConstructorInvocation redirectingConstructorInvocation(List<Expression> arguments) => redirectingConstructorInvocation2(null, arguments);
 
-  static RedirectingConstructorInvocation redirectingConstructorInvocation2(String constructorName, List<Expression> arguments) => new RedirectingConstructorInvocation.full(TokenFactory.token(Keyword.THIS), constructorName == null ? null : TokenFactory.token3(TokenType.PERIOD), constructorName == null ? null : identifier3(constructorName), argumentList(arguments));
+  static RedirectingConstructorInvocation redirectingConstructorInvocation2(String constructorName, List<Expression> arguments) => new RedirectingConstructorInvocation(TokenFactory.token(Keyword.THIS), constructorName == null ? null : TokenFactory.token3(TokenType.PERIOD), constructorName == null ? null : identifier3(constructorName), argumentList(arguments));
 
-  static RethrowExpression rethrowExpression() => new RethrowExpression.full(TokenFactory.token(Keyword.RETHROW));
+  static RethrowExpression rethrowExpression() => new RethrowExpression(TokenFactory.token(Keyword.RETHROW));
 
   static ReturnStatement returnStatement() => returnStatement2(null);
 
-  static ReturnStatement returnStatement2(Expression expression) => new ReturnStatement.full(TokenFactory.token(Keyword.RETURN), expression, TokenFactory.token3(TokenType.SEMICOLON));
+  static ReturnStatement returnStatement2(Expression expression) => new ReturnStatement(TokenFactory.token(Keyword.RETURN), expression, TokenFactory.token3(TokenType.SEMICOLON));
 
-  static ScriptTag scriptTag(String scriptTag) => new ScriptTag.full(TokenFactory.token2(scriptTag));
+  static ScriptTag scriptTag(String scriptTag) => new ScriptTag(TokenFactory.token2(scriptTag));
 
-  static ShowCombinator showCombinator(List<SimpleIdentifier> identifiers) => new ShowCombinator.full(TokenFactory.token2("show"), list(identifiers));
+  static ShowCombinator showCombinator(List<SimpleIdentifier> identifiers) => new ShowCombinator(TokenFactory.token2("show"), list(identifiers));
 
   static ShowCombinator showCombinator2(List<String> identifiers) {
     List<SimpleIdentifier> identifierList = new List<SimpleIdentifier>();
     for (String identifier in identifiers) {
       identifierList.add(identifier3(identifier));
     }
-    return new ShowCombinator.full(TokenFactory.token2("show"), identifierList);
+    return new ShowCombinator(TokenFactory.token2("show"), identifierList);
   }
 
   static SimpleFormalParameter simpleFormalParameter(Keyword keyword, String parameterName) => simpleFormalParameter2(keyword, null, parameterName);
 
-  static SimpleFormalParameter simpleFormalParameter2(Keyword keyword, TypeName type, String parameterName) => new SimpleFormalParameter.full(null, null, keyword == null ? null : TokenFactory.token(keyword), type, identifier3(parameterName));
+  static SimpleFormalParameter simpleFormalParameter2(Keyword keyword, TypeName type, String parameterName) => new SimpleFormalParameter(null, null, keyword == null ? null : TokenFactory.token(keyword), type, identifier3(parameterName));
 
   static SimpleFormalParameter simpleFormalParameter3(String parameterName) => simpleFormalParameter2(null, null, parameterName);
 
   static SimpleFormalParameter simpleFormalParameter4(TypeName type, String parameterName) => simpleFormalParameter2(null, type, parameterName);
 
-  static StringInterpolation string(List<InterpolationElement> elements) => new StringInterpolation.full(list(elements));
+  static StringInterpolation string(List<InterpolationElement> elements) => new StringInterpolation(list(elements));
 
-  static SimpleStringLiteral string2(String content) => new SimpleStringLiteral.full(TokenFactory.token2("'${content}'"), content);
+  static SimpleStringLiteral string2(String content) => new SimpleStringLiteral(TokenFactory.token2("'${content}'"), content);
 
   static SuperConstructorInvocation superConstructorInvocation(List<Expression> arguments) => superConstructorInvocation2(null, arguments);
 
-  static SuperConstructorInvocation superConstructorInvocation2(String name, List<Expression> arguments) => new SuperConstructorInvocation.full(TokenFactory.token(Keyword.SUPER), name == null ? null : TokenFactory.token3(TokenType.PERIOD), name == null ? null : identifier3(name), argumentList(arguments));
+  static SuperConstructorInvocation superConstructorInvocation2(String name, List<Expression> arguments) => new SuperConstructorInvocation(TokenFactory.token(Keyword.SUPER), name == null ? null : TokenFactory.token3(TokenType.PERIOD), name == null ? null : identifier3(name), argumentList(arguments));
 
-  static SuperExpression superExpression() => new SuperExpression.full(TokenFactory.token(Keyword.SUPER));
+  static SuperExpression superExpression() => new SuperExpression(TokenFactory.token(Keyword.SUPER));
 
   static SwitchCase switchCase(Expression expression, List<Statement> statements) => switchCase2(new List<Label>(), expression, statements);
 
-  static SwitchCase switchCase2(List<Label> labels, Expression expression, List<Statement> statements) => new SwitchCase.full(labels, TokenFactory.token(Keyword.CASE), expression, TokenFactory.token3(TokenType.COLON), list(statements));
+  static SwitchCase switchCase2(List<Label> labels, Expression expression, List<Statement> statements) => new SwitchCase(labels, TokenFactory.token(Keyword.CASE), expression, TokenFactory.token3(TokenType.COLON), list(statements));
 
-  static SwitchDefault switchDefault(List<Label> labels, List<Statement> statements) => new SwitchDefault.full(labels, TokenFactory.token(Keyword.DEFAULT), TokenFactory.token3(TokenType.COLON), list(statements));
+  static SwitchDefault switchDefault(List<Label> labels, List<Statement> statements) => new SwitchDefault(labels, TokenFactory.token(Keyword.DEFAULT), TokenFactory.token3(TokenType.COLON), list(statements));
 
   static SwitchDefault switchDefault2(List<Statement> statements) => switchDefault(new List<Label>(), statements);
 
-  static SwitchStatement switchStatement(Expression expression, List<SwitchMember> members) => new SwitchStatement.full(TokenFactory.token(Keyword.SWITCH), TokenFactory.token3(TokenType.OPEN_PAREN), expression, TokenFactory.token3(TokenType.CLOSE_PAREN), TokenFactory.token3(TokenType.OPEN_CURLY_BRACKET), list(members), TokenFactory.token3(TokenType.CLOSE_CURLY_BRACKET));
+  static SwitchStatement switchStatement(Expression expression, List<SwitchMember> members) => new SwitchStatement(TokenFactory.token(Keyword.SWITCH), TokenFactory.token3(TokenType.OPEN_PAREN), expression, TokenFactory.token3(TokenType.CLOSE_PAREN), TokenFactory.token3(TokenType.OPEN_CURLY_BRACKET), list(members), TokenFactory.token3(TokenType.CLOSE_CURLY_BRACKET));
 
   static SymbolLiteral symbolLiteral(List<String> components) {
     List<Token> identifierList = new List<Token>();
     for (String component in components) {
       identifierList.add(TokenFactory.token4(TokenType.IDENTIFIER, component));
     }
-    return new SymbolLiteral.full(TokenFactory.token3(TokenType.HASH), new List.from(identifierList));
+    return new SymbolLiteral(TokenFactory.token3(TokenType.HASH), new List.from(identifierList));
   }
 
-  static ThisExpression thisExpression() => new ThisExpression.full(TokenFactory.token(Keyword.THIS));
+  static ThisExpression thisExpression() => new ThisExpression(TokenFactory.token(Keyword.THIS));
 
   static ThrowExpression throwExpression() => throwExpression2(null);
 
-  static ThrowExpression throwExpression2(Expression expression) => new ThrowExpression.full(TokenFactory.token(Keyword.THROW), expression);
+  static ThrowExpression throwExpression2(Expression expression) => new ThrowExpression(TokenFactory.token(Keyword.THROW), expression);
 
-  static TopLevelVariableDeclaration topLevelVariableDeclaration(Keyword keyword, TypeName type, List<VariableDeclaration> variables) => new TopLevelVariableDeclaration.full(null, null, variableDeclarationList(keyword, type, variables), TokenFactory.token3(TokenType.SEMICOLON));
+  static TopLevelVariableDeclaration topLevelVariableDeclaration(Keyword keyword, TypeName type, List<VariableDeclaration> variables) => new TopLevelVariableDeclaration(null, null, variableDeclarationList(keyword, type, variables), TokenFactory.token3(TokenType.SEMICOLON));
 
-  static TopLevelVariableDeclaration topLevelVariableDeclaration2(Keyword keyword, List<VariableDeclaration> variables) => new TopLevelVariableDeclaration.full(null, null, variableDeclarationList(keyword, null, variables), TokenFactory.token3(TokenType.SEMICOLON));
+  static TopLevelVariableDeclaration topLevelVariableDeclaration2(Keyword keyword, List<VariableDeclaration> variables) => new TopLevelVariableDeclaration(null, null, variableDeclarationList(keyword, null, variables), TokenFactory.token3(TokenType.SEMICOLON));
 
   static TryStatement tryStatement(Block body, Block finallyClause) => tryStatement3(body, new List<CatchClause>(), finallyClause);
 
   static TryStatement tryStatement2(Block body, List<CatchClause> catchClauses) => tryStatement3(body, list(catchClauses), null);
 
-  static TryStatement tryStatement3(Block body, List<CatchClause> catchClauses, Block finallyClause) => new TryStatement.full(TokenFactory.token(Keyword.TRY), body, catchClauses, finallyClause == null ? null : TokenFactory.token(Keyword.FINALLY), finallyClause);
+  static TryStatement tryStatement3(Block body, List<CatchClause> catchClauses, Block finallyClause) => new TryStatement(TokenFactory.token(Keyword.TRY), body, catchClauses, finallyClause == null ? null : TokenFactory.token(Keyword.FINALLY), finallyClause);
 
-  static FunctionTypeAlias typeAlias(TypeName returnType, String name, TypeParameterList typeParameters, FormalParameterList parameters) => new FunctionTypeAlias.full(null, null, TokenFactory.token(Keyword.TYPEDEF), returnType, identifier3(name), typeParameters, parameters, TokenFactory.token3(TokenType.SEMICOLON));
+  static FunctionTypeAlias typeAlias(TypeName returnType, String name, TypeParameterList typeParameters, FormalParameterList parameters) => new FunctionTypeAlias(null, null, TokenFactory.token(Keyword.TYPEDEF), returnType, identifier3(name), typeParameters, parameters, TokenFactory.token3(TokenType.SEMICOLON));
 
-  static TypeArgumentList typeArgumentList(List<TypeName> typeNames) => new TypeArgumentList.full(TokenFactory.token3(TokenType.LT), list(typeNames), TokenFactory.token3(TokenType.GT));
+  static TypeArgumentList typeArgumentList(List<TypeName> typeNames) => new TypeArgumentList(TokenFactory.token3(TokenType.LT), list(typeNames), TokenFactory.token3(TokenType.GT));
 
   /**
    * Create a type name whose name has been resolved to the given element and whose type has been
@@ -615,45 +639,45 @@
 
   static TypeName typeName3(Identifier name, List<TypeName> arguments) {
     if (arguments.length == 0) {
-      return new TypeName.full(name, null);
+      return new TypeName(name, null);
     }
-    return new TypeName.full(name, typeArgumentList(arguments));
+    return new TypeName(name, typeArgumentList(arguments));
   }
 
   static TypeName typeName4(String name, List<TypeName> arguments) {
     if (arguments.length == 0) {
-      return new TypeName.full(identifier3(name), null);
+      return new TypeName(identifier3(name), null);
     }
-    return new TypeName.full(identifier3(name), typeArgumentList(arguments));
+    return new TypeName(identifier3(name), typeArgumentList(arguments));
   }
 
-  static TypeParameter typeParameter(String name) => new TypeParameter.full(null, null, identifier3(name), null, null);
+  static TypeParameter typeParameter(String name) => new TypeParameter(null, null, identifier3(name), null, null);
 
-  static TypeParameter typeParameter2(String name, TypeName bound) => new TypeParameter.full(null, null, identifier3(name), TokenFactory.token(Keyword.EXTENDS), bound);
+  static TypeParameter typeParameter2(String name, TypeName bound) => new TypeParameter(null, null, identifier3(name), TokenFactory.token(Keyword.EXTENDS), bound);
 
   static TypeParameterList typeParameterList(List<String> typeNames) {
     List<TypeParameter> typeParameters = new List<TypeParameter>();
     for (String typeName in typeNames) {
       typeParameters.add(typeParameter(typeName));
     }
-    return new TypeParameterList.full(TokenFactory.token3(TokenType.LT), typeParameters, TokenFactory.token3(TokenType.GT));
+    return new TypeParameterList(TokenFactory.token3(TokenType.LT), typeParameters, TokenFactory.token3(TokenType.GT));
   }
 
-  static VariableDeclaration variableDeclaration(String name) => new VariableDeclaration.full(null, null, identifier3(name), null, null);
+  static VariableDeclaration variableDeclaration(String name) => new VariableDeclaration(null, null, identifier3(name), null, null);
 
-  static VariableDeclaration variableDeclaration2(String name, Expression initializer) => new VariableDeclaration.full(null, null, identifier3(name), TokenFactory.token3(TokenType.EQ), initializer);
+  static VariableDeclaration variableDeclaration2(String name, Expression initializer) => new VariableDeclaration(null, null, identifier3(name), TokenFactory.token3(TokenType.EQ), initializer);
 
-  static VariableDeclarationList variableDeclarationList(Keyword keyword, TypeName type, List<VariableDeclaration> variables) => new VariableDeclarationList.full(null, null, keyword == null ? null : TokenFactory.token(keyword), type, list(variables));
+  static VariableDeclarationList variableDeclarationList(Keyword keyword, TypeName type, List<VariableDeclaration> variables) => new VariableDeclarationList(null, null, keyword == null ? null : TokenFactory.token(keyword), type, list(variables));
 
   static VariableDeclarationList variableDeclarationList2(Keyword keyword, List<VariableDeclaration> variables) => variableDeclarationList(keyword, null, variables);
 
-  static VariableDeclarationStatement variableDeclarationStatement(Keyword keyword, TypeName type, List<VariableDeclaration> variables) => new VariableDeclarationStatement.full(variableDeclarationList(keyword, type, variables), TokenFactory.token3(TokenType.SEMICOLON));
+  static VariableDeclarationStatement variableDeclarationStatement(Keyword keyword, TypeName type, List<VariableDeclaration> variables) => new VariableDeclarationStatement(variableDeclarationList(keyword, type, variables), TokenFactory.token3(TokenType.SEMICOLON));
 
   static VariableDeclarationStatement variableDeclarationStatement2(Keyword keyword, List<VariableDeclaration> variables) => variableDeclarationStatement(keyword, null, variables);
 
-  static WhileStatement whileStatement(Expression condition, Statement body) => new WhileStatement.full(TokenFactory.token(Keyword.WHILE), TokenFactory.token3(TokenType.OPEN_PAREN), condition, TokenFactory.token3(TokenType.CLOSE_PAREN), body);
+  static WhileStatement whileStatement(Expression condition, Statement body) => new WhileStatement(TokenFactory.token(Keyword.WHILE), TokenFactory.token3(TokenType.OPEN_PAREN), condition, TokenFactory.token3(TokenType.CLOSE_PAREN), body);
 
-  static WithClause withClause(List<TypeName> types) => new WithClause.full(TokenFactory.token(Keyword.WITH), list(types));
+  static WithClause withClause(List<TypeName> types) => new WithClause(TokenFactory.token(Keyword.WITH), list(types));
 }
 
 class SimpleIdentifierTest extends ParserTestCase {
@@ -2063,7 +2087,7 @@
   }
 
   void test_visitCommentReference() {
-    assertSource("", new CommentReference.full(null, ASTFactory.identifier3("a")));
+    assertSource("", new CommentReference(null, ASTFactory.identifier3("a")));
   }
 
   void test_visitCompilationUnit_declaration() {
@@ -3953,6 +3977,7 @@
   NodeLocatorTest.dartSuite();
   ToSourceVisitorTest.dartSuite();
   BreadthFirstVisitorTest.dartSuite();
+  ClassDeclarationTest.dartSuite();
   IndexExpressionTest.dartSuite();
   NodeListTest.dartSuite();
   SimpleIdentifierTest.dartSuite();
diff --git a/pkg/analyzer/test/generated/element_test.dart b/pkg/analyzer/test/generated/element_test.dart
index cfa5913..c7d032b 100644
--- a/pkg/analyzer/test/generated/element_test.dart
+++ b/pkg/analyzer/test/generated/element_test.dart
@@ -2813,7 +2813,7 @@
 
   void test_isSubtypeOf_baseCase_classFunction() {
     ClassElementImpl functionElement = ElementFactory.classElement2("Function", []);
-    InterfaceTypeImpl functionType = new InterfaceTypeImpl_25(functionElement);
+    InterfaceTypeImpl functionType = new InterfaceTypeImpl_26(functionElement);
     FunctionType f = ElementFactory.functionElement("f").type;
     JUnitTestCase.assertTrue(f.isSubtypeOf(functionType));
   }
@@ -3312,8 +3312,8 @@
   }
 }
 
-class InterfaceTypeImpl_25 extends InterfaceTypeImpl {
-  InterfaceTypeImpl_25(ClassElement arg0) : super.con1(arg0);
+class InterfaceTypeImpl_26 extends InterfaceTypeImpl {
+  InterfaceTypeImpl_26(ClassElement arg0) : super.con1(arg0);
 
   bool get isDartCoreFunction => true;
 }
diff --git a/pkg/analyzer/test/generated/parser_test.dart b/pkg/analyzer/test/generated/parser_test.dart
index 38a08d5..81c0306 100644
--- a/pkg/analyzer/test/generated/parser_test.dart
+++ b/pkg/analyzer/test/generated/parser_test.dart
@@ -499,7 +499,7 @@
   }
 
   void test_parseAssignableSelector_none() {
-    SimpleIdentifier selector = ParserTestCase.parse("parseAssignableSelector", <Object> [new SimpleIdentifier.full(null), true], ";");
+    SimpleIdentifier selector = ParserTestCase.parse("parseAssignableSelector", <Object> [new SimpleIdentifier(null), true], ";");
     JUnitTestCase.assertNotNull(selector);
   }
 
@@ -1494,6 +1494,13 @@
     EngineTestCase.assertSize(0, unit.declarations);
   }
 
+  void test_parseCompilationUnit_skipFunctionBody_withInterpolation() {
+    ParserTestCase._parseFunctionBodies = false;
+    CompilationUnit unit = ParserTestCase.parse5("parseCompilationUnit", "f() { '\${n}'; }", []);
+    JUnitTestCase.assertNull(unit.scriptTag);
+    EngineTestCase.assertSize(1, unit.declarations);
+  }
+
   void test_parseCompilationUnit_topLevelDeclaration() {
     CompilationUnit unit = ParserTestCase.parse5("parseCompilationUnit", "class A {}", []);
     JUnitTestCase.assertNull(unit.scriptTag);
@@ -2511,9 +2518,27 @@
     JUnitTestCase.assertNotNull(functionBody.semicolon);
   }
 
+  void test_parseFunctionBody_skip_block() {
+    ParserTestCase._parseFunctionBodies = false;
+    FunctionBody functionBody = ParserTestCase.parse("parseFunctionBody", <Object> [false, null, false], "{}");
+    EngineTestCase.assertInstanceOf(EmptyFunctionBody, functionBody);
+  }
+
+  void test_parseFunctionBody_skip_blocks() {
+    ParserTestCase._parseFunctionBodies = false;
+    FunctionBody functionBody = ParserTestCase.parse("parseFunctionBody", <Object> [false, null, false], "{ {} }");
+    EngineTestCase.assertInstanceOf(EmptyFunctionBody, functionBody);
+  }
+
+  void test_parseFunctionBody_skip_expression() {
+    ParserTestCase._parseFunctionBodies = false;
+    FunctionBody functionBody = ParserTestCase.parse("parseFunctionBody", <Object> [false, null, false], "=> y;");
+    EngineTestCase.assertInstanceOf(EmptyFunctionBody, functionBody);
+  }
+
   void test_parseFunctionDeclaration_function() {
     Comment comment = Comment.createDocumentationComment(new List<Token>(0));
-    TypeName returnType = new TypeName.full(new SimpleIdentifier.full(null), null);
+    TypeName returnType = new TypeName(new SimpleIdentifier(null), null);
     FunctionDeclaration declaration = ParserTestCase.parse("parseFunctionDeclaration", <Object> [commentAndMetadata(comment, []), null, returnType], "f() {}");
     JUnitTestCase.assertEquals(comment, declaration.documentationComment);
     JUnitTestCase.assertEquals(returnType, declaration.returnType);
@@ -2527,7 +2552,7 @@
 
   void test_parseFunctionDeclaration_getter() {
     Comment comment = Comment.createDocumentationComment(new List<Token>(0));
-    TypeName returnType = new TypeName.full(new SimpleIdentifier.full(null), null);
+    TypeName returnType = new TypeName(new SimpleIdentifier(null), null);
     FunctionDeclaration declaration = ParserTestCase.parse("parseFunctionDeclaration", <Object> [commentAndMetadata(comment, []), null, returnType], "get p => 0;");
     JUnitTestCase.assertEquals(comment, declaration.documentationComment);
     JUnitTestCase.assertEquals(returnType, declaration.returnType);
@@ -2541,7 +2566,7 @@
 
   void test_parseFunctionDeclaration_setter() {
     Comment comment = Comment.createDocumentationComment(new List<Token>(0));
-    TypeName returnType = new TypeName.full(new SimpleIdentifier.full(null), null);
+    TypeName returnType = new TypeName(new SimpleIdentifier(null), null);
     FunctionDeclaration declaration = ParserTestCase.parse("parseFunctionDeclaration", <Object> [commentAndMetadata(comment, []), null, returnType], "set p(v) {}");
     JUnitTestCase.assertEquals(comment, declaration.documentationComment);
     JUnitTestCase.assertEquals(returnType, declaration.returnType);
@@ -2573,7 +2598,7 @@
 
   void test_parseGetter_nonStatic() {
     Comment comment = Comment.createDocumentationComment(new List<Token>(0));
-    TypeName returnType = new TypeName.full(new SimpleIdentifier.full(null), null);
+    TypeName returnType = new TypeName(new SimpleIdentifier(null), null);
     MethodDeclaration method = ParserTestCase.parse("parseGetter", <Object> [commentAndMetadata(comment, []), null, null, returnType], "get a;");
     JUnitTestCase.assertNotNull(method.body);
     JUnitTestCase.assertEquals(comment, method.documentationComment);
@@ -2589,7 +2614,7 @@
   void test_parseGetter_static() {
     Comment comment = Comment.createDocumentationComment(new List<Token>(0));
     Token staticKeyword = TokenFactory.token(Keyword.STATIC);
-    TypeName returnType = new TypeName.full(new SimpleIdentifier.full(null), null);
+    TypeName returnType = new TypeName(new SimpleIdentifier(null), null);
     MethodDeclaration method = ParserTestCase.parse("parseGetter", <Object> [
         commentAndMetadata(comment, []),
         null,
@@ -2735,7 +2760,7 @@
   void test_parseInitializedIdentifierList_type() {
     Comment comment = Comment.createDocumentationComment(new List<Token>(0));
     Token staticKeyword = TokenFactory.token(Keyword.STATIC);
-    TypeName type = new TypeName.full(new SimpleIdentifier.full(null), null);
+    TypeName type = new TypeName(new SimpleIdentifier(null), null);
     FieldDeclaration declaration = ParserTestCase.parse("parseInitializedIdentifierList", <Object> [
         commentAndMetadata(comment, []),
         staticKeyword,
@@ -3270,7 +3295,7 @@
 
   void test_parseOperator() {
     Comment comment = Comment.createDocumentationComment(new List<Token>(0));
-    TypeName returnType = new TypeName.full(new SimpleIdentifier.full(null), null);
+    TypeName returnType = new TypeName(new SimpleIdentifier(null), null);
     MethodDeclaration method = ParserTestCase.parse("parseOperator", <Object> [commentAndMetadata(comment, []), null, returnType], "operator +(A a);");
     JUnitTestCase.assertNotNull(method.body);
     JUnitTestCase.assertEquals(comment, method.documentationComment);
@@ -3557,7 +3582,7 @@
 
   void test_parseSetter_nonStatic() {
     Comment comment = Comment.createDocumentationComment(new List<Token>(0));
-    TypeName returnType = new TypeName.full(new SimpleIdentifier.full(null), null);
+    TypeName returnType = new TypeName(new SimpleIdentifier(null), null);
     MethodDeclaration method = ParserTestCase.parse("parseSetter", <Object> [commentAndMetadata(comment, []), null, null, returnType], "set a(var x);");
     JUnitTestCase.assertNotNull(method.body);
     JUnitTestCase.assertEquals(comment, method.documentationComment);
@@ -3573,7 +3598,7 @@
   void test_parseSetter_static() {
     Comment comment = Comment.createDocumentationComment(new List<Token>(0));
     Token staticKeyword = TokenFactory.token(Keyword.STATIC);
-    TypeName returnType = new TypeName.full(new SimpleIdentifier.full(null), null);
+    TypeName returnType = new TypeName(new SimpleIdentifier(null), null);
     MethodDeclaration method = ParserTestCase.parse("parseSetter", <Object> [
         commentAndMetadata(comment, []),
         null,
@@ -4209,7 +4234,7 @@
   }
 
   void test_parseVariableDeclarationList2_type() {
-    TypeName type = new TypeName.full(new SimpleIdentifier.full(null), null);
+    TypeName type = new TypeName(new SimpleIdentifier(null), null);
     VariableDeclarationList declarationList = ParserTestCase.parse("parseVariableDeclarationList", <Object> [emptyCommentAndMetadata(), null, type], "a");
     JUnitTestCase.assertNull(declarationList.keyword);
     JUnitTestCase.assertEquals(type, declarationList.type);
@@ -4379,7 +4404,7 @@
    * @throws Exception if the method could not be invoked or throws an exception
    */
   String computeStringValue(String lexeme, bool first, bool last) {
-    AnalysisErrorListener listener = new AnalysisErrorListener_26();
+    AnalysisErrorListener listener = new AnalysisErrorListener_27();
     Parser parser = new Parser(null, listener);
     return invokeParserMethodImpl(parser, "computeStringValue", <Object> [lexeme, first, last], null) as String;
   }
@@ -5329,6 +5354,10 @@
         final __test = new SimpleParserTest();
         runJUnitTest(__test, __test.test_parseCompilationUnit_script);
       });
+      _ut.test('test_parseCompilationUnit_skipFunctionBody_withInterpolation', () {
+        final __test = new SimpleParserTest();
+        runJUnitTest(__test, __test.test_parseCompilationUnit_skipFunctionBody_withInterpolation);
+      });
       _ut.test('test_parseCompilationUnit_topLevelDeclaration', () {
         final __test = new SimpleParserTest();
         runJUnitTest(__test, __test.test_parseCompilationUnit_topLevelDeclaration);
@@ -5689,6 +5718,18 @@
         final __test = new SimpleParserTest();
         runJUnitTest(__test, __test.test_parseFunctionBody_nativeFunctionBody);
       });
+      _ut.test('test_parseFunctionBody_skip_block', () {
+        final __test = new SimpleParserTest();
+        runJUnitTest(__test, __test.test_parseFunctionBody_skip_block);
+      });
+      _ut.test('test_parseFunctionBody_skip_blocks', () {
+        final __test = new SimpleParserTest();
+        runJUnitTest(__test, __test.test_parseFunctionBody_skip_blocks);
+      });
+      _ut.test('test_parseFunctionBody_skip_expression', () {
+        final __test = new SimpleParserTest();
+        runJUnitTest(__test, __test.test_parseFunctionBody_skip_expression);
+      });
       _ut.test('test_parseFunctionDeclarationStatement', () {
         final __test = new SimpleParserTest();
         runJUnitTest(__test, __test.test_parseFunctionDeclarationStatement);
@@ -6633,7 +6674,7 @@
   }
 }
 
-class AnalysisErrorListener_26 implements AnalysisErrorListener {
+class AnalysisErrorListener_27 implements AnalysisErrorListener {
   void onError(AnalysisError event) {
     JUnitTestCase.fail("Unexpected compilation error: ${event.message} (${event.offset}, ${event.length})");
   }
@@ -7203,6 +7244,11 @@
   static List<Object> _EMPTY_ARGUMENTS = new List<Object>(0);
 
   /**
+   * A flag indicating whether parser is to parse function bodies.
+   */
+  static bool _parseFunctionBodies = true;
+
+  /**
    * Invoke a parse method in [Parser]. The method is assumed to have the given number and
    * type of parameters and will be invoked with the given arguments.
    *
@@ -7387,6 +7433,7 @@
     Token tokenStream = scanner.tokenize();
     listener.setLineInfo(new TestSource(), scanner.lineStarts);
     Parser parser = new Parser(null, listener);
+    parser.parseFunctionBodies = _parseFunctionBodies;
     Object result = invokeParserMethodImpl(parser, methodName, objects, tokenStream);
     if (!listener.hasErrors()) {
       JUnitTestCase.assertNotNull(result);
@@ -7432,6 +7479,11 @@
    */
   CommentAndMetadata emptyCommentAndMetadata() => new CommentAndMetadata(null, new List<Annotation>());
 
+  void setUp() {
+    super.setUp();
+    _parseFunctionBodies = true;
+  }
+
   static dartSuite() {
     _ut.group('ParserTestCase', () {
     });
@@ -9091,7 +9143,7 @@
 }
 
 class IncrementalParserTest extends EngineTestCase {
-  void fail_delete_everything() {
+  void test_delete_everything() {
     assertParse("", "f() => a + b;", "", "");
   }
 
@@ -9147,6 +9199,14 @@
     assertParse("f() => a;", "", "b", "  c;");
   }
 
+  void test_insert_newIdentifier3() {
+    assertParse("/** A simple function. */ f() => a;", "", " b", " c;");
+  }
+
+  void test_insert_newIdentifier4() {
+    assertParse("/** An [A]. */ class A {} class B { m() { return 1", "", " + 2", "; } }");
+  }
+
   void test_insert_period() {
     assertParse("f() => a + b", "", ".", ";");
   }
@@ -9171,6 +9231,10 @@
     assertParse("f() => a + b", "", ".x", ";");
   }
 
+  void test_insert_simpleToComplexExression() {
+    assertParse("/** An [A]. */ class A {} class B { m() => 1", "", " + 2", "; }");
+  }
+
   void test_insert_whitespace_end() {
     assertParse("f() => a + b;", "", " ", "");
   }
@@ -9247,6 +9311,10 @@
 
   static dartSuite() {
     _ut.group('IncrementalParserTest', () {
+      _ut.test('test_delete_everything', () {
+        final __test = new IncrementalParserTest();
+        runJUnitTest(__test, __test.test_delete_everything);
+      });
       _ut.test('test_delete_identifier_beginning', () {
         final __test = new IncrementalParserTest();
         runJUnitTest(__test, __test.test_delete_identifier_beginning);
@@ -9299,6 +9367,14 @@
         final __test = new IncrementalParserTest();
         runJUnitTest(__test, __test.test_insert_newIdentifier2);
       });
+      _ut.test('test_insert_newIdentifier3', () {
+        final __test = new IncrementalParserTest();
+        runJUnitTest(__test, __test.test_insert_newIdentifier3);
+      });
+      _ut.test('test_insert_newIdentifier4', () {
+        final __test = new IncrementalParserTest();
+        runJUnitTest(__test, __test.test_insert_newIdentifier4);
+      });
       _ut.test('test_insert_period', () {
         final __test = new IncrementalParserTest();
         runJUnitTest(__test, __test.test_insert_period);
@@ -9323,6 +9399,10 @@
         final __test = new IncrementalParserTest();
         runJUnitTest(__test, __test.test_insert_period_insideExistingIdentifier);
       });
+      _ut.test('test_insert_simpleToComplexExression', () {
+        final __test = new IncrementalParserTest();
+        runJUnitTest(__test, __test.test_insert_simpleToComplexExression);
+      });
       _ut.test('test_insert_whitespace_end', () {
         final __test = new IncrementalParserTest();
         runJUnitTest(__test, __test.test_insert_whitespace_end);
@@ -11433,6 +11513,7 @@
   'isSwitchMember_0': new MethodTrampoline(0, (Parser target) => target.isSwitchMember()),
   'isTypedIdentifier_1': new MethodTrampoline(1, (Parser target, arg0) => target.isTypedIdentifier(arg0)),
   'lexicallyFirst_1': new MethodTrampoline(1, (Parser target, arg0) => target.lexicallyFirst(arg0)),
+  'lockErrorListener_0': new MethodTrampoline(0, (Parser target) => target.lockErrorListener()),
   'matches_1': new MethodTrampoline(1, (Parser target, arg0) => target.matches(arg0)),
   'matches_2': new MethodTrampoline(2, (Parser target, arg0, arg1) => target.matches3(arg0, arg1)),
   'matchesAny_2': new MethodTrampoline(2, (Parser target, arg0, arg1) => target.matchesAny(arg0, arg1)),
@@ -11523,8 +11604,10 @@
   'parseWhileStatement_0': new MethodTrampoline(0, (Parser target) => target.parseWhileStatement()),
   'peek_0': new MethodTrampoline(0, (Parser target) => target.peek()),
   'peek_1': new MethodTrampoline(1, (Parser target, arg0) => target.peek2(arg0)),
-  'reportError_3': new MethodTrampoline(3, (Parser target, arg0, arg1, arg2) => target.reportError(arg0, arg1, arg2)),
-  'reportError_2': new MethodTrampoline(2, (Parser target, arg0, arg1) => target.reportError9(arg0, arg1)),
+  'reportError_1': new MethodTrampoline(1, (Parser target, arg0) => target.reportError(arg0)),
+  'reportError_3': new MethodTrampoline(3, (Parser target, arg0, arg1, arg2) => target.reportError9(arg0, arg1, arg2)),
+  'reportError_2': new MethodTrampoline(2, (Parser target, arg0, arg1) => target.reportError10(arg0, arg1)),
+  'skipBlock_0': new MethodTrampoline(0, (Parser target) => target.skipBlock()),
   'skipFinalConstVarOrType_1': new MethodTrampoline(1, (Parser target, arg0) => target.skipFinalConstVarOrType(arg0)),
   'skipFormalParameterList_1': new MethodTrampoline(1, (Parser target, arg0) => target.skipFormalParameterList(arg0)),
   'skipPastMatchingToken_1': new MethodTrampoline(1, (Parser target, arg0) => target.skipPastMatchingToken(arg0)),
@@ -11537,6 +11620,7 @@
   'skipTypeName_1': new MethodTrampoline(1, (Parser target, arg0) => target.skipTypeName(arg0)),
   'skipTypeParameterList_1': new MethodTrampoline(1, (Parser target, arg0) => target.skipTypeParameterList(arg0)),
   'translateCharacter_3': new MethodTrampoline(3, (Parser target, arg0, arg1, arg2) => target.translateCharacter(arg0, arg1, arg2)),
+  'unlockErrorListener_0': new MethodTrampoline(0, (Parser target) => target.unlockErrorListener()),
   'validateFormalParameterList_1': new MethodTrampoline(1, (Parser target, arg0) => target.validateFormalParameterList(arg0)),
   'validateModifiersForClass_1': new MethodTrampoline(1, (Parser target, arg0) => target.validateModifiersForClass(arg0)),
   'validateModifiersForConstructor_1': new MethodTrampoline(1, (Parser target, arg0) => target.validateModifiersForConstructor(arg0)),
diff --git a/pkg/analyzer/test/generated/resolver_test.dart b/pkg/analyzer/test/generated/resolver_test.dart
index 3bc159c..d77f200 100644
--- a/pkg/analyzer/test/generated/resolver_test.dart
+++ b/pkg/analyzer/test/generated/resolver_test.dart
@@ -1247,6 +1247,19 @@
     verify([source]);
   }
 
+  void test_constConstructorWithNonConstSuper_explicit() {
+    Source source = addSource(EngineTestCase.createSource([
+        "class A {",
+        "  const A();",
+        "}",
+        "class B extends A {",
+        "  const B(): super();",
+        "}"]));
+    resolve(source);
+    assertNoErrors(source);
+    verify([source]);
+  }
+
   void test_constConstructorWithNonConstSuper_redirectingFactory() {
     Source source = addSource(EngineTestCase.createSource([
         "class A {",
@@ -1263,6 +1276,19 @@
     verify([source]);
   }
 
+  void test_constConstructorWithNonConstSuper_unresolved() {
+    Source source = addSource(EngineTestCase.createSource([
+        "class A {",
+        "  A.a();",
+        "}",
+        "class B extends A {",
+        "  const B(): super();",
+        "}"]));
+    resolve(source);
+    assertErrors(source, [CompileTimeErrorCode.UNDEFINED_CONSTRUCTOR_IN_INITIALIZER_DEFAULT]);
+    verify([source]);
+  }
+
   void test_constConstructorWithNonFinalField_finalInstanceVar() {
     Source source = addSource(EngineTestCase.createSource(["class A {", "  final int x = 0;", "  const A();", "}"]));
     resolve(source);
@@ -4244,6 +4270,27 @@
     verify([source]);
   }
 
+  void test_uriDoesNotExist_dll() {
+    addSource2("/lib.dll", "");
+    Source source = addSource(EngineTestCase.createSource(["import 'dart-ext:lib';"]));
+    resolve(source);
+    assertNoErrors(source);
+  }
+
+  void test_uriDoesNotExist_dylib() {
+    addSource2("/lib.dylib", "");
+    Source source = addSource(EngineTestCase.createSource(["import 'dart-ext:lib';"]));
+    resolve(source);
+    assertNoErrors(source);
+  }
+
+  void test_uriDoesNotExist_so() {
+    addSource2("/lib.so", "");
+    Source source = addSource(EngineTestCase.createSource(["import 'dart-ext:lib';"]));
+    resolve(source);
+    assertNoErrors(source);
+  }
+
   void test_wrongNumberOfParametersForOperator_index() {
     Source source = addSource(EngineTestCase.createSource(["class A {", "  operator []=(a, b) {}", "}"]));
     resolve(source);
@@ -4403,10 +4450,18 @@
         final __test = new NonErrorResolverTest();
         runJUnitTest(__test, __test.test_conflictingStaticSetterAndInstanceMember_thisClass_method);
       });
+      _ut.test('test_constConstructorWithNonConstSuper_explicit', () {
+        final __test = new NonErrorResolverTest();
+        runJUnitTest(__test, __test.test_constConstructorWithNonConstSuper_explicit);
+      });
       _ut.test('test_constConstructorWithNonConstSuper_redirectingFactory', () {
         final __test = new NonErrorResolverTest();
         runJUnitTest(__test, __test.test_constConstructorWithNonConstSuper_redirectingFactory);
       });
+      _ut.test('test_constConstructorWithNonConstSuper_unresolved', () {
+        final __test = new NonErrorResolverTest();
+        runJUnitTest(__test, __test.test_constConstructorWithNonConstSuper_unresolved);
+      });
       _ut.test('test_constConstructorWithNonFinalField_finalInstanceVar', () {
         final __test = new NonErrorResolverTest();
         runJUnitTest(__test, __test.test_constConstructorWithNonFinalField_finalInstanceVar);
@@ -5459,6 +5514,18 @@
         final __test = new NonErrorResolverTest();
         runJUnitTest(__test, __test.test_unqualifiedReferenceToNonLocalStaticMember_fromComment_new);
       });
+      _ut.test('test_uriDoesNotExist_dll', () {
+        final __test = new NonErrorResolverTest();
+        runJUnitTest(__test, __test.test_uriDoesNotExist_dll);
+      });
+      _ut.test('test_uriDoesNotExist_dylib', () {
+        final __test = new NonErrorResolverTest();
+        runJUnitTest(__test, __test.test_uriDoesNotExist_dylib);
+      });
+      _ut.test('test_uriDoesNotExist_so', () {
+        final __test = new NonErrorResolverTest();
+        runJUnitTest(__test, __test.test_uriDoesNotExist_so);
+      });
       _ut.test('test_wrongNumberOfParametersForOperator1', () {
         final __test = new NonErrorResolverTest();
         runJUnitTest(__test, __test.test_wrongNumberOfParametersForOperator1);
@@ -8743,12 +8810,12 @@
   /**
    * The source factory used to create [Source].
    */
-  SourceFactory sourceFactory;
+  SourceFactory _sourceFactory;
 
   /**
    * The analysis context used to parse the compilation units being resolved.
    */
-  AnalysisContextImpl analysisContext;
+  AnalysisContextImpl _analysisContext;
 
   void setUp() {
     reset();
@@ -8773,7 +8840,7 @@
     Source source = cacheSource(filePath, contents);
     ChangeSet changeSet = new ChangeSet();
     changeSet.added(source);
-    analysisContext.applyChanges(changeSet);
+    _analysisContext.applyChanges(changeSet);
     return source;
   }
 
@@ -8790,7 +8857,7 @@
    */
   void assertErrors(Source source, List<ErrorCode> expectedErrorCodes) {
     GatheringErrorListener errorListener = new GatheringErrorListener();
-    for (AnalysisError error in analysisContext.computeErrors(source)) {
+    for (AnalysisError error in _analysisContext.computeErrors(source)) {
       errorListener.onError(error);
     }
     errorListener.assertErrors2(expectedErrorCodes);
@@ -8816,8 +8883,8 @@
    * @return the source object representing the cached file
    */
   Source cacheSource(String filePath, String contents) {
-    Source source = new FileBasedSource.con1(sourceFactory.contentCache, FileUtilities2.createFile(filePath));
-    sourceFactory.setContents(source, contents);
+    Source source = new FileBasedSource.con1(_sourceFactory.contentCache, FileUtilities2.createFile(filePath));
+    _sourceFactory.setContents(source, contents);
     return source;
   }
 
@@ -8857,24 +8924,25 @@
     return library;
   }
 
+  AnalysisContext get analysisContext => _analysisContext;
+
+  SourceFactory get sourceFactory => _sourceFactory;
+
   /**
    * Return a type provider that can be used to test the results of resolution.
    *
    * @return a type provider
+   * @throws AnalysisException if dart:core cannot be resolved
    */
-  TypeProvider get typeProvider {
-    Source coreSource = analysisContext.sourceFactory.forUri(DartSdk.DART_CORE);
-    LibraryElement coreElement = analysisContext.getLibraryElement(coreSource);
-    return new TypeProviderImpl(coreElement);
-  }
+  TypeProvider get typeProvider => _analysisContext.typeProvider;
 
   /**
    * In the rare cases we want to group several tests into single "test_" method, so need a way to
    * reset test instance to reuse it.
    */
   void reset() {
-    analysisContext = AnalysisContextFactory.contextWithCore();
-    sourceFactory = analysisContext.sourceFactory;
+    _analysisContext = AnalysisContextFactory.contextWithCore();
+    _sourceFactory = _analysisContext.sourceFactory;
   }
 
   /**
@@ -8886,7 +8954,7 @@
    * @return the element representing the resolved library
    * @throws AnalysisException if the analysis could not be performed
    */
-  LibraryElement resolve(Source librarySource) => analysisContext.computeLibraryElement(librarySource);
+  LibraryElement resolve(Source librarySource) => _analysisContext.computeLibraryElement(librarySource);
 
   /**
    * Return the resolved compilation unit corresponding to the given source in the given library.
@@ -8896,7 +8964,7 @@
    * @return the resolved compilation unit
    * @throws Exception if the compilation unit could not be resolved
    */
-  CompilationUnit resolveCompilationUnit(Source source, LibraryElement library) => analysisContext.resolveCompilationUnit(source, library);
+  CompilationUnit resolveCompilationUnit(Source source, LibraryElement library) => _analysisContext.resolveCompilationUnit(source, library);
 
   /**
    * Verify that all of the identifiers in the compilation units associated with the given sources
@@ -8910,7 +8978,7 @@
   void verify(List<Source> sources) {
     ResolutionVerifier verifier = new ResolutionVerifier();
     for (Source source in sources) {
-      analysisContext.parseCompilationUnit(source).accept(verifier);
+      _analysisContext.parseCompilationUnit(source).accept(verifier);
     }
     verifier.assertResolved();
   }
@@ -8922,8 +8990,8 @@
    * @return the source that was created
    */
   FileBasedSource createSource2(String fileName) {
-    FileBasedSource source = new FileBasedSource.con1(sourceFactory.contentCache, FileUtilities2.createFile(fileName));
-    sourceFactory.setContents(source, "");
+    FileBasedSource source = new FileBasedSource.con1(_sourceFactory.contentCache, FileUtilities2.createFile(fileName));
+    _sourceFactory.setContents(source, "");
     return source;
   }
 
@@ -12694,6 +12762,12 @@
     assertErrors(source, [CompileTimeErrorCode.URI_DOES_NOT_EXIST]);
   }
 
+  void test_uriDoesNotExist_nativeLibrary() {
+    Source source = addSource(EngineTestCase.createSource(["import 'dart-ext:lib';"]));
+    resolve(source);
+    assertErrors(source, [CompileTimeErrorCode.URI_DOES_NOT_EXIST]);
+  }
+
   void test_uriDoesNotExist_part() {
     Source source = addSource(EngineTestCase.createSource(["part 'unknown.dart';"]));
     resolve(source);
@@ -14104,6 +14178,10 @@
         final __test = new CompileTimeErrorCodeTest();
         runJUnitTest(__test, __test.test_uriDoesNotExist_import);
       });
+      _ut.test('test_uriDoesNotExist_nativeLibrary', () {
+        final __test = new CompileTimeErrorCodeTest();
+        runJUnitTest(__test, __test.test_uriDoesNotExist_nativeLibrary);
+      });
       _ut.test('test_uriDoesNotExist_part', () {
         final __test = new CompileTimeErrorCodeTest();
         runJUnitTest(__test, __test.test_uriDoesNotExist_part);
@@ -18876,7 +18954,15 @@
    *
    * @return the analysis context that was created
    */
-  static AnalysisContextImpl contextWithCore() {
+  static AnalysisContextImpl contextWithCore() => initContextWithCore(new DelegatingAnalysisContextImpl());
+
+  /**
+   * Initialize the given analysis context with a fake core library already resolved.
+   *
+   * @param context the context to be initialized (not `null`)
+   * @return the analysis context that was created
+   */
+  static AnalysisContextImpl initContextWithCore(AnalysisContextImpl context) {
     AnalysisContext sdkContext = DirectoryBasedDartSdk.defaultSdk.context;
     SourceFactory sourceFactory = sdkContext.sourceFactory;
     TestTypeProvider provider = new TestTypeProvider();
@@ -18939,7 +19025,6 @@
     elementMap[coreSource] = coreLibrary;
     elementMap[htmlSource] = htmlLibrary;
     (sdkContext as AnalysisContextImpl).recordLibraryElements(elementMap);
-    AnalysisContextImpl context = new DelegatingAnalysisContextImpl();
     sourceFactory = new SourceFactory.con2([
         new DartUriResolver(sdkContext.sourceFactory.dartSdk),
         new FileUriResolver()]);
@@ -21329,7 +21414,7 @@
 class EnclosedScopeTest extends ResolverTestCase {
   void test_define_duplicate() {
     GatheringErrorListener errorListener2 = new GatheringErrorListener();
-    Scope rootScope = new Scope_23(errorListener2);
+    Scope rootScope = new Scope_24(errorListener2);
     EnclosedScope scope = new EnclosedScope(rootScope);
     VariableElement element1 = ElementFactory.localVariableElement(ASTFactory.identifier3("v1"));
     VariableElement element2 = ElementFactory.localVariableElement(ASTFactory.identifier3("v1"));
@@ -21340,7 +21425,7 @@
 
   void test_define_normal() {
     GatheringErrorListener errorListener3 = new GatheringErrorListener();
-    Scope rootScope = new Scope_24(errorListener3);
+    Scope rootScope = new Scope_25(errorListener3);
     EnclosedScope outerScope = new EnclosedScope(rootScope);
     EnclosedScope innerScope = new EnclosedScope(outerScope);
     VariableElement element1 = ElementFactory.localVariableElement(ASTFactory.identifier3("v1"));
@@ -21364,20 +21449,20 @@
   }
 }
 
-class Scope_23 extends Scope {
+class Scope_24 extends Scope {
   GatheringErrorListener errorListener2;
 
-  Scope_23(this.errorListener2) : super();
+  Scope_24(this.errorListener2) : super();
 
   AnalysisErrorListener get errorListener => errorListener2;
 
   Element lookup3(Identifier identifier, String name, LibraryElement referencingLibrary) => null;
 }
 
-class Scope_24 extends Scope {
+class Scope_25 extends Scope {
   GatheringErrorListener errorListener3;
 
-  Scope_24(this.errorListener3) : super();
+  Scope_25(this.errorListener3) : super();
 
   AnalysisErrorListener get errorListener => errorListener3;
 
@@ -21648,13 +21733,9 @@
   /**
    * The listener that is to be informed when an error is encountered.
    */
-  AnalysisErrorListener _errorListener;
+  final AnalysisErrorListener errorListener;
 
-  ScopeTest_TestScope(AnalysisErrorListener errorListener) {
-    this._errorListener = errorListener;
-  }
-
-  AnalysisErrorListener get errorListener => _errorListener;
+  ScopeTest_TestScope(this.errorListener);
 
   Element lookup3(Identifier identifier, String name, LibraryElement referencingLibrary) => localLookup(name, referencingLibrary);
 }
@@ -22112,7 +22193,11 @@
     CompilationUnit unit = analysisContext.getResolvedCompilationUnit(source, library);
     JUnitTestCase.assertNotNull(unit);
     List<bool> found = [false];
-    unit.accept(new RecursiveASTVisitor_27(this, found));
+    List<AnalysisException> thrownException = new List<AnalysisException>(1);
+    unit.accept(new RecursiveASTVisitor_28(this, found, thrownException));
+    if (thrownException[0] != null) {
+      throw new AnalysisException.con3(thrownException[0]);
+    }
     JUnitTestCase.assertTrue(found[0]);
   }
 
@@ -22505,20 +22590,26 @@
   }
 }
 
-class RecursiveASTVisitor_27 extends RecursiveASTVisitor<Object> {
+class RecursiveASTVisitor_28 extends RecursiveASTVisitor<Object> {
   final SimpleResolverTest SimpleResolverTest_this;
 
   List<bool> found;
 
-  RecursiveASTVisitor_27(this.SimpleResolverTest_this, this.found) : super();
+  List<AnalysisException> thrownException;
+
+  RecursiveASTVisitor_28(this.SimpleResolverTest_this, this.found, this.thrownException) : super();
 
   Object visitSimpleIdentifier(SimpleIdentifier node) {
     if (node.name == "myVar" && node.parent is MethodInvocation) {
-      found[0] = true;
-      Type2 staticType = node.staticType;
-      JUnitTestCase.assertSame(SimpleResolverTest_this.typeProvider.dynamicType, staticType);
-      FunctionType propagatedType = node.propagatedType as FunctionType;
-      JUnitTestCase.assertEquals(SimpleResolverTest_this.typeProvider.stringType, propagatedType.returnType);
+      try {
+        found[0] = true;
+        Type2 staticType = node.staticType;
+        JUnitTestCase.assertSame(SimpleResolverTest_this.typeProvider.dynamicType, staticType);
+        FunctionType propagatedType = node.propagatedType as FunctionType;
+        JUnitTestCase.assertEquals(SimpleResolverTest_this.typeProvider.stringType, propagatedType.returnType);
+      } on AnalysisException catch (e) {
+        thrownException[0] = e;
+      }
     }
     return null;
   }
diff --git a/pkg/analyzer/test/generated/scanner_test.dart b/pkg/analyzer/test/generated/scanner_test.dart
index 04350a5..50ad8cb 100644
--- a/pkg/analyzer/test/generated/scanner_test.dart
+++ b/pkg/analyzer/test/generated/scanner_test.dart
@@ -361,6 +361,14 @@
     assertToken(TokenType.COMMA, ",");
   }
 
+  void test_comment_disabled_multi() {
+    Scanner scanner = new Scanner(null, new CharSequenceReader(new CharSequence("/* comment */ ")), AnalysisErrorListener.NULL_LISTENER);
+    scanner.preserveComments = false;
+    Token token = scanner.tokenize();
+    JUnitTestCase.assertNotNull(token);
+    JUnitTestCase.assertNull(token.precedingComments);
+  }
+
   void test_comment_multi() {
     assertComment(TokenType.MULTI_LINE_COMMENT, "/* comment */");
   }
@@ -1262,6 +1270,10 @@
         final __test = new ScannerTest();
         runJUnitTest(__test, __test.test_comma);
       });
+      _ut.test('test_comment_disabled_multi', () {
+        final __test = new ScannerTest();
+        runJUnitTest(__test, __test.test_comment_disabled_multi);
+      });
       _ut.test('test_comment_multi', () {
         final __test = new ScannerTest();
         runJUnitTest(__test, __test.test_comment_multi);
diff --git a/pkg/analyzer/test/generated/test_support.dart b/pkg/analyzer/test/generated/test_support.dart
index 91f0ba6..8186ce4 100644
--- a/pkg/analyzer/test/generated/test_support.dart
+++ b/pkg/analyzer/test/generated/test_support.dart
@@ -32,7 +32,7 @@
   /**
    * A list containing the errors that were collected.
    */
-  final List<AnalysisError> errors = new List<AnalysisError>();
+  List<AnalysisError> _errors = new List<AnalysisError>();
 
   /**
    * A table mapping sources to the line information for the source.
@@ -78,14 +78,14 @@
    *           expected or if they do not have the same codes and locations
    */
   void assertErrors(List<AnalysisError> expectedErrors) {
-    if (errors.length != expectedErrors.length) {
+    if (_errors.length != expectedErrors.length) {
       fail(expectedErrors);
     }
     List<AnalysisError> remainingErrors = new List<AnalysisError>();
     for (AnalysisError error in expectedErrors) {
       remainingErrors.add(error);
     }
-    for (AnalysisError error in errors) {
+    for (AnalysisError error in _errors) {
       if (!foundAndRemoved(remainingErrors, error)) {
         fail(expectedErrors);
       }
@@ -117,7 +117,7 @@
       expectedCounts[code] = count;
     }
     Map<ErrorCode, List<AnalysisError>> errorsByCode = new Map<ErrorCode, List<AnalysisError>>();
-    for (AnalysisError error in errors) {
+    for (AnalysisError error in _errors) {
       ErrorCode code = error.errorCode;
       List<AnalysisError> list = errorsByCode[code];
       if (list == null) {
@@ -198,7 +198,7 @@
     }
     int actualErrorCount = 0;
     int actualWarningCount = 0;
-    for (AnalysisError error in errors) {
+    for (AnalysisError error in _errors) {
       if (identical(error.errorCode.errorSeverity, ErrorSeverity.ERROR)) {
         actualErrorCount++;
       } else {
@@ -220,6 +220,13 @@
   }
 
   /**
+   * Return the errors that were collected.
+   *
+   * @return the errors that were collected
+   */
+  List<AnalysisError> get errors => _errors;
+
+  /**
    * Return the line information associated with the given source, or `null` if no line
    * information has been associated with the source.
    *
@@ -235,7 +242,7 @@
    * @return `true` if an error with the given error code has been gathered
    */
   bool hasError(ErrorCode errorCode) {
-    for (AnalysisError error in errors) {
+    for (AnalysisError error in _errors) {
       if (identical(error.errorCode, errorCode)) {
         return true;
       }
@@ -248,7 +255,7 @@
    *
    * @return `true` if at least one error has been gathered
    */
-  bool hasErrors() => errors.length > 0;
+  bool hasErrors() => _errors.length > 0;
 
   void onError(AnalysisError error) {
     if (_rawSource != null) {
@@ -256,7 +263,7 @@
       int right = left + error.length - 1;
       _markedSource = "${_rawSource.substring(0, left)}^${_rawSource.substring(left, right)}^${_rawSource.substring(right)}";
     }
-    errors.add(error);
+    _errors.add(error);
   }
 
   /**
@@ -340,9 +347,9 @@
     }
     writer.newLine();
     writer.print("found ");
-    writer.print(errors.length);
+    writer.print(_errors.length);
     writer.print(" errors:");
-    for (AnalysisError error in errors) {
+    for (AnalysisError error in _errors) {
       Source source = error.source;
       LineInfo lineInfo = _lineInfoMap[source];
       writer.newLine();
diff --git a/pkg/args/pubspec.yaml b/pkg/args/pubspec.yaml
index 06e201f..f907300 100644
--- a/pkg/args/pubspec.yaml
+++ b/pkg/args/pubspec.yaml
@@ -8,7 +8,7 @@
  a set of options and values using GNU and POSIX style options.
 
 dependencies:
-  collection_helpers: ">=0.9.0 <0.10.0"
+  collection_helpers: ">=0.9.1 <0.10.0"
 dev_dependencies:
   unittest: ">=0.9.0 <0.10.0"
 environment:
diff --git a/pkg/barback/lib/src/phase.dart b/pkg/barback/lib/src/phase.dart
index d712354..2136a12 100644
--- a/pkg/barback/lib/src/phase.dart
+++ b/pkg/barback/lib/src/phase.dart
@@ -116,8 +116,10 @@
     _onDirtyPool.add(_onDirtyController.stream);
 
     for (var group in transformers.where((op) => op is TransformerGroup)) {
-      _groups[group] = new GroupRunner(cascade, group);
-      _onDirtyPool.add(_groups[group].onDirty);
+      var runner = new GroupRunner(cascade, group);
+      _groups[group] = runner;
+      _onDirtyPool.add(runner.onDirty);
+      _onLogPool.add(runner.onLog);
     }
   }
 
@@ -206,6 +208,7 @@
       var runner = new GroupRunner(cascade, added);
       _groups[added] = runner;
       _onDirtyPool.add(runner.onDirty);
+      _onLogPool.add(runner.onLog);
       for (var input in _inputs.values) {
         runner.addInput(input.input);
       }
diff --git a/pkg/barback/pubspec.yaml b/pkg/barback/pubspec.yaml
index 3032f3d..5a7b410 100644
--- a/pkg/barback/pubspec.yaml
+++ b/pkg/barback/pubspec.yaml
@@ -8,7 +8,7 @@
 # When the minor version of this is upgraded, you *must* update that version
 # number in pub to stay in sync with this. New patch versions are considered
 # backwards compatible, and pub will allow later patch versions automatically.
-version: 0.10.2+1
+version: 0.11.0 # Minor version bumped
 
 author: "Dart Team <misc@dartlang.org>"
 homepage: http://www.dartlang.org
@@ -23,9 +23,9 @@
   Runs transforms asynchronously and in parallel when possible to maximize
   responsiveness.
 dependencies:
-  path: ">=0.9.0 <0.10.0"
+  path: ">=0.9.0 <2.0.0"
   source_maps: ">=0.9.0 <0.10.0"
-  stack_trace: ">=0.9.0 <0.10.0"
+  stack_trace: ">=0.9.1 <0.10.0"
 dev_dependencies:
   scheduled_test: ">=0.9.0 <0.10.0"
   unittest: ">=0.9.0 <0.10.0"
diff --git a/pkg/barback/test/logger_test.dart b/pkg/barback/test/logger_test.dart
new file mode 100644
index 0000000..778f42f
--- /dev/null
+++ b/pkg/barback/test/logger_test.dart
@@ -0,0 +1,48 @@
+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+library barback.test.logger_test;
+
+import 'package:barback/barback.dart';
+import 'package:scheduled_test/scheduled_test.dart';
+
+import 'utils.dart';
+import 'transformer/log.dart';
+
+main() {
+  initConfig();
+
+  test("logs messages from a transformer", () {
+    var transformer = new LogTransformer([
+      "error: This is an error.",
+      "warning: This is a warning.",
+      "info: This is info."
+    ]);
+    initGraph(["app|foo.txt"], {
+      "app": [[transformer]]
+    });
+
+    updateSources(["app|foo.txt"]);
+    buildShouldLog(LogLevel.ERROR, equals("This is an error."));
+    buildShouldLog(LogLevel.WARNING, equals("This is a warning."));
+    buildShouldLog(LogLevel.INFO, equals("This is info."));
+  });
+
+  test("logs messages from a transformer group", () {
+    var transformer = new LogTransformer([
+      "error: This is an error.",
+      "warning: This is a warning.",
+      "info: This is info."
+    ]);
+
+    initGraph(["app|foo.txt"], {"app": [
+      [new TransformerGroup([[transformer]])]
+    ]});
+
+    updateSources(["app|foo.txt"]);
+    buildShouldLog(LogLevel.ERROR, equals("This is an error."));
+    buildShouldLog(LogLevel.WARNING, equals("This is a warning."));
+    buildShouldLog(LogLevel.INFO, equals("This is info."));
+  });
+}
diff --git a/pkg/barback/test/mutliset_test.dart b/pkg/barback/test/multiset_test.dart
similarity index 99%
rename from pkg/barback/test/mutliset_test.dart
rename to pkg/barback/test/multiset_test.dart
index ad5f6c5..ab5e311 100644
--- a/pkg/barback/test/mutliset_test.dart
+++ b/pkg/barback/test/multiset_test.dart
@@ -4,8 +4,6 @@
 
 library barback.test.multiset_test;
 
-import 'dart:async';
-
 import 'package:barback/src/multiset.dart';
 import 'package:unittest/unittest.dart';
 
diff --git a/pkg/barback/test/package_graph/many_parallel_transformers_test.dart b/pkg/barback/test/package_graph/many_parallel_transformers_test.dart
index 389beb1..72f19ac 100644
--- a/pkg/barback/test/package_graph/many_parallel_transformers_test.dart
+++ b/pkg/barback/test/package_graph/many_parallel_transformers_test.dart
@@ -13,6 +13,7 @@
   initConfig();
 
   test("handles many parallel transformers", () {
+    currentSchedule.timeout *= 3;
     var files = new List.generate(100, (i) => "app|$i.txt");
     var rewrite = new RewriteTransformer("txt", "out");
     initGraph(files, {"app": [[rewrite]]});
diff --git a/pkg/barback/test/transformer/log.dart b/pkg/barback/test/transformer/log.dart
new file mode 100644
index 0000000..f2b63fc
--- /dev/null
+++ b/pkg/barback/test/transformer/log.dart
@@ -0,0 +1,42 @@
+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+library barback.test.transformer.log;
+
+import 'dart:async';
+
+import 'package:barback/barback.dart';
+import 'package:barback/src/utils.dart';
+
+import 'mock.dart';
+
+/// A transformer that logs given entries during its apply.
+class LogTransformer extends MockTransformer {
+  /// The list of entries that it should log.
+  ///
+  /// Each entry has the log level followed by the message, like:
+  ///
+  ///     error: This is the error message.
+  final List<String> _entries;
+
+  LogTransformer(this._entries);
+
+  Future<bool> doIsPrimary(Asset asset) => new Future.value(true);
+
+  Future doApply(Transform transform) {
+    return newFuture(() {
+      for (var entry in _entries) {
+        var parts = entry.split(":");
+        var logFn;
+        switch (parts[0]) {
+          case "error":   logFn = transform.logger.error; break;
+          case "warning": logFn = transform.logger.warning; break;
+          case "info":    logFn = transform.logger.info; break;
+        }
+
+        logFn(parts[1].trim());
+      }
+    });
+  }
+}
diff --git a/pkg/barback/test/utils.dart b/pkg/barback/test/utils.dart
index 167a534..2f58753 100644
--- a/pkg/barback/test/utils.dart
+++ b/pkg/barback/test/utils.dart
@@ -35,6 +35,11 @@
 /// calls have already been made so later calls know which result to look for.
 int _nextBuildResult;
 
+/// Calls to [buildShouldLog] set expectations on successive log entries from
+/// [_barback]. This keeps track of how many calls have already been made so
+/// later calls know which result to look for.
+int _nextLog;
+
 void initConfig() {
   if (_configured) return;
   _configured = true;
@@ -88,6 +93,7 @@
   _provider = new MockProvider(assetMap);
   _barback = new Barback(_provider);
   _nextBuildResult = 0;
+  _nextLog = 0;
 
   transformers.forEach(_barback.updateTransformers);
 
@@ -216,12 +222,27 @@
   }), completes);
 }
 
+/// Expects that the nexted logged [LogEntry] matches [matcher] which may be
+/// either a [Matcher] or a string to match a literal string.
+void buildShouldLog(LogLevel level, matcher) {
+  expect(_getNextLog("build should log").then((log) {
+    expect(log.level, equals(level));
+    expect(log.message, matcher);
+  }), completes);
+}
+
 Future<BuildResult> _getNextBuildResult(String description) {
   var result = currentSchedule.wrapFuture(
       _barback.results.elementAt(_nextBuildResult++));
   return schedule(() => result, description);
 }
 
+Future<LogEntry> _getNextLog(String description) {
+  var result = currentSchedule.wrapFuture(
+      _barback.log.elementAt(_nextLog++));
+  return schedule(() => result, description);
+}
+
 /// Schedules an expectation that the graph will deliver an asset matching
 /// [name] and [contents].
 ///
diff --git a/pkg/collection_helpers/pubspec.yaml b/pkg/collection_helpers/pubspec.yaml
index 30e95d4..482ca1c 100644
--- a/pkg/collection_helpers/pubspec.yaml
+++ b/pkg/collection_helpers/pubspec.yaml
@@ -1,9 +1,9 @@
 name: collection_helpers
-version: 0.9.2
-author: '"Dart Team <misc@dartlang.org>"'
+version: 0.9.1
+author: "Dart Team <misc@dartlang.org>"
 description: Utility functions and classes for working with collections.
 homepage: http://www.dartlang.org
 dev_dependencies:
   unittest: ">=0.9.0 <0.10.0"
 environment:
-  sdk: ">=0.8.10+6 <2.0.0"
+  sdk: ">=1.0.0 <2.0.0"
diff --git a/pkg/csslib/LICENSE b/pkg/csslib/LICENSE
new file mode 100644
index 0000000..ee99930
--- /dev/null
+++ b/pkg/csslib/LICENSE
@@ -0,0 +1,26 @@
+Copyright 2013, the Dart project authors. All rights reserved.
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+    * Neither the name of Google Inc. nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/pkg/csslib/pubspec.yaml b/pkg/csslib/pubspec.yaml
index a995672..8ec9421 100644
--- a/pkg/csslib/pubspec.yaml
+++ b/pkg/csslib/pubspec.yaml
@@ -1,15 +1,15 @@
 name: csslib
-version: 0.9.0
-author: "Web UI Team <web-ui-dev@dartlang.org>"
+version: 0.9.1
+author: "Polymer.dart Team <web-ui-dev@dartlang.org>"
 description: A library for parsing CSS.
 homepage: https://www.dartlang.org
 dependencies:
   args: ">=0.9.0 <0.10.0"
   logging: ">=0.9.0 <0.10.0"
-  path: ">=0.9.0 <0.10.0"
+  path: ">=0.9.0 <2.0.0"
   source_maps: ">=0.9.0 <0.10.0"
 dev_dependencies:
   browser: ">=0.9.0 <0.10.0"
   unittest: ">=0.9.0 <0.10.0"
 environment:
-  sdk: ">=0.8.10+6 <2.0.0"
+  sdk: ">=1.0.0 <2.0.0"
diff --git a/pkg/custom_element/AUTHORS b/pkg/custom_element/AUTHORS
new file mode 100644
index 0000000..0617765
--- /dev/null
+++ b/pkg/custom_element/AUTHORS
@@ -0,0 +1,9 @@
+# Names should be added to this file with this pattern:
+#
+# For individuals:
+#   Name <email address>
+#
+# For organizations:
+#   Organization <fnmatch pattern>
+#
+Google Inc. <*@google.com>
diff --git a/pkg/custom_element/LICENSE b/pkg/custom_element/LICENSE
new file mode 100644
index 0000000..92d60b0
--- /dev/null
+++ b/pkg/custom_element/LICENSE
@@ -0,0 +1,27 @@
+// Copyright (c) 2012 The Polymer Authors. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/pkg/custom_element/PATENTS b/pkg/custom_element/PATENTS
new file mode 100644
index 0000000..e120963
--- /dev/null
+++ b/pkg/custom_element/PATENTS
@@ -0,0 +1,23 @@
+Additional IP Rights Grant (Patents)
+
+"This implementation" means the copyrightable works distributed by
+Google as part of the Polymer project.
+
+Google hereby grants to You a perpetual, worldwide, non-exclusive,
+no-charge, royalty-free, irrevocable (except as stated in this section)
+patent license to make, have made, use, offer to sell, sell, import,
+transfer and otherwise run, modify and propagate the contents of this
+implementation of Polymer, where such license applies only to those
+patent claims, both currently owned or controlled by Google and acquired
+in the future, licensable by Google that are necessarily infringed by
+this implementation of Polymer.  This grant does not include claims
+that would be infringed only as a consequence of further modification of
+this implementation.  If you or your agent or exclusive licensee
+institute or order or agree to the institution of patent litigation
+against any entity (including a cross-claim or counterclaim in a
+lawsuit) alleging that this implementation of Polymer or any code
+incorporated within this implementation of Polymer constitutes
+direct or contributory patent infringement, or inducement of patent
+infringement, then any patent rights granted to you under this License
+for this implementation of Polymer shall terminate as of the date
+such litigation is filed.
diff --git a/pkg/custom_element/lib/custom-elements.debug.js b/pkg/custom_element/lib/custom-elements.debug.js
index 11ae624..fff3b8a 100644
--- a/pkg/custom_element/lib/custom-elements.debug.js
+++ b/pkg/custom_element/lib/custom-elements.debug.js
@@ -25,23 +25,16 @@
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-window.CustomElements = {flags:{}};
-// SideTable is a weak map where possible. If WeakMap is not available the
-// association is stored as an expando property.
-var SideTable;
-// TODO(arv): WeakMap does not allow for Node etc to be keys in Firefox
-if (typeof WeakMap !== 'undefined' && navigator.userAgent.indexOf('Firefox/') < 0) {
-  SideTable = WeakMap;
-} else {
+if (typeof WeakMap === 'undefined') {
   (function() {
     var defineProperty = Object.defineProperty;
     var counter = Date.now() % 1e9;
 
-    SideTable = function() {
+    var WeakMap = function() {
       this.name = '__st' + (Math.random() * 1e9 >>> 0) + (counter++ + '__');
     };
 
-    SideTable.prototype = {
+    WeakMap.prototype = {
       set: function(key, value) {
         var entry = key[this.name];
         if (entry && entry[0] === key)
@@ -57,13 +50,15 @@
       delete: function(key) {
         this.set(key, undefined);
       }
-    }
+    };
+
+    window.WeakMap = WeakMap;
   })();
 }
 
 (function(global) {
 
-  var registrationsTable = new SideTable();
+  var registrationsTable = new WeakMap();
 
   // We use setImmediate or postMessage for our future callback.
   var setImmediate = window.msSetImmediate;
@@ -596,344 +591,333 @@
 
   global.JsMutationObserver = JsMutationObserver;
 
+  // Provide unprefixed MutationObserver with native or JS implementation
+  if (!global.MutationObserver && global.WebKitMutationObserver)
+    global.MutationObserver = global.WebKitMutationObserver;
+
+  if (!global.MutationObserver)
+    global.MutationObserver = JsMutationObserver;
+
+
 })(this);
 
-if (!window.MutationObserver) {
-  window.MutationObserver =
-      window.WebKitMutationObserver ||
-      window.JsMutationObserver;
-  if (!MutationObserver) {
-    throw new Error("no mutation observer support");
-  }
-}
-
-(function(scope){
-
-var logFlags = window.logFlags || {};
-
-// walk the subtree rooted at node, applying 'find(element, data)' function
-// to each element
-// if 'find' returns true for 'element', do not search element's subtree
-function findAll(node, find, data) {
-  var e = node.firstElementChild;
-  if (!e) {
-    e = node.firstChild;
-    while (e && e.nodeType !== Node.ELEMENT_NODE) {
-      e = e.nextSibling;
-    }
-  }
-  while (e) {
-    if (find(e, data) !== true) {
-      findAll(e, find, data);
-    }
-    e = e.nextElementSibling;
-  }
-  return null;
-}
-
-// walk all shadowRoots on a given node.
-function forRoots(node, cb) {
-  var root = node.shadowRoot;
-  while(root) {
-    forSubtree(root, cb);
-    root = root.olderShadowRoot;
-  }
-}
-
-// walk the subtree rooted at node, including descent into shadow-roots,
-// applying 'cb' to each element
-function forSubtree(node, cb) {
-  //logFlags.dom && node.childNodes && node.childNodes.length && console.group('subTree: ', node);
-  findAll(node, function(e) {
-    if (cb(e)) {
-      return true;
-    }
-    forRoots(e, cb);
-  });
-  forRoots(node, cb);
-  //logFlags.dom && node.childNodes && node.childNodes.length && console.groupEnd();
-}
-
-// manage lifecycle on added node
-function added(node) {
-  if (upgrade(node)) {
-    insertedNode(node);
-    return true;
-  }
-  inserted(node);
-}
-
-// manage lifecycle on added node's subtree only
-function addedSubtree(node) {
-  forSubtree(node, function(e) {
-    if (added(e)) {
-      return true;
-    }
-  });
-}
-
-// manage lifecycle on added node and it's subtree
-function addedNode(node) {
-  return added(node) || addedSubtree(node);
-}
-
-// upgrade custom elements at node, if applicable
-function upgrade(node) {
-  if (!node.__upgraded__ && node.nodeType === Node.ELEMENT_NODE) {
-    var type = node.getAttribute('is') || node.localName;
-    var definition = scope.registry[type];
-    if (definition) {
-      logFlags.dom && console.group('upgrade:', node.localName);
-      scope.upgrade(node);
-      logFlags.dom && console.groupEnd();
-      return true;
-    }
-  }
-}
-
-function insertedNode(node) {
-  inserted(node);
-  if (inDocument(node)) {
-    forSubtree(node, function(e) {
-      inserted(e);
-    });
-  }
-}
-
-
-// TODO(sorvell): on platforms without MutationObserver, mutations may not be
-// reliable and therefore entered/leftView are not reliable.
-// To make these callbacks less likely to fail, we defer all inserts and removes
-// to give a chance for elements to be inserted into dom.
-// This ensures enteredViewCallback fires for elements that are created and
-// immediately added to dom.
-var hasPolyfillMutations = (!window.MutationObserver ||
-    (window.MutationObserver === window.JsMutationObserver));
-scope.hasPolyfillMutations = hasPolyfillMutations;
-
-var isPendingMutations = false;
-var pendingMutations = [];
-function deferMutation(fn) {
-  pendingMutations.push(fn);
-  if (!isPendingMutations) {
-    isPendingMutations = true;
-    var async = (window.Platform && window.Platform.endOfMicrotask) ||
-        setTimeout;
-    async(takeMutations);
-  }
-}
-
-function takeMutations() {
-  isPendingMutations = false;
-  var $p = pendingMutations;
-  for (var i=0, l=$p.length, p; (i<l) && (p=$p[i]); i++) {
-    p();
-  }
-  pendingMutations = [];
-}
-
-function inserted(element) {
-  if (hasPolyfillMutations) {
-    deferMutation(function() {
-      _inserted(element);
-    });
-  } else {
-    _inserted(element);
-  }
-}
-
-// TODO(sjmiles): if there are descents into trees that can never have inDocument(*) true, fix this
-function _inserted(element) {
-  // TODO(sjmiles): it's possible we were inserted and removed in the space
-  // of one microtask, in which case we won't be 'inDocument' here
-  // But there are other cases where we are testing for inserted without
-  // specific knowledge of mutations, and must test 'inDocument' to determine
-  // whether to call inserted
-  // If we can factor these cases into separate code paths we can have
-  // better diagnostics.
-  // TODO(sjmiles): when logging, do work on all custom elements so we can
-  // track behavior even when callbacks not defined
-  //console.log('inserted: ', element.localName);
-  if (element.enteredViewCallback || (element.__upgraded__ && logFlags.dom)) {
-    logFlags.dom && console.group('inserted:', element.localName);
-    if (inDocument(element)) {
-      element.__inserted = (element.__inserted || 0) + 1;
-      // if we are in a 'removed' state, bluntly adjust to an 'inserted' state
-      if (element.__inserted < 1) {
-        element.__inserted = 1;
-      }
-      // if we are 'over inserted', squelch the callback
-      if (element.__inserted > 1) {
-        logFlags.dom && console.warn('inserted:', element.localName,
-          'insert/remove count:', element.__inserted)
-      } else if (element.enteredViewCallback) {
-        logFlags.dom && console.log('inserted:', element.localName);
-        element.enteredViewCallback();
-      }
-    }
-    logFlags.dom && console.groupEnd();
-  }
-}
-
-function removedNode(node) {
-  removed(node);
-  forSubtree(node, function(e) {
-    removed(e);
-  });
-}
-
-
-function removed(element) {
-  if (hasPolyfillMutations) {
-    deferMutation(function() {
-      _removed(element);
-    });
-  } else {
-    _removed(element);
-  }
-}
-
-function removed(element) {
-  // TODO(sjmiles): temporary: do work on all custom elements so we can track
-  // behavior even when callbacks not defined
-  if (element.leftViewCallback || (element.__upgraded__ && logFlags.dom)) {
-    logFlags.dom && console.log('removed:', element.localName);
-    if (!inDocument(element)) {
-      element.__inserted = (element.__inserted || 0) - 1;
-      // if we are in a 'inserted' state, bluntly adjust to an 'removed' state
-      if (element.__inserted > 0) {
-        element.__inserted = 0;
-      }
-      // if we are 'over removed', squelch the callback
-      if (element.__inserted < 0) {
-        logFlags.dom && console.warn('removed:', element.localName,
-            'insert/remove count:', element.__inserted)
-      } else if (element.leftViewCallback) {
-        element.leftViewCallback();
-      }
-    }
-  }
-}
-
-function inDocument(element) {
-  var p = element;
-  var doc = window.ShadowDOMPolyfill &&
-      window.ShadowDOMPolyfill.wrapIfNeeded(document) || document;
-  while (p) {
-    if (p == doc) {
-      return true;
-    }
-    p = p.parentNode || p.host;
-  }
-}
-
-function watchShadow(node) {
-  if (node.shadowRoot && !node.shadowRoot.__watched) {
-    logFlags.dom && console.log('watching shadow-root for: ', node.localName);
-    // watch all unwatched roots...
-    var root = node.shadowRoot;
-    while (root) {
-      watchRoot(root);
-      root = root.olderShadowRoot;
-    }
-  }
-}
-
-function watchRoot(root) {
-  if (!root.__watched) {
-    observe(root);
-    root.__watched = true;
-  }
-}
-
-function filter(inNode) {
-  switch (inNode.localName) {
-    case 'style':
-    case 'script':
-    case 'template':
-    case undefined:
-      return true;
-  }
-}
-
-function handler(mutations) {
-  //
-  if (logFlags.dom) {
-    var mx = mutations[0];
-    if (mx && mx.type === 'childList' && mx.addedNodes) {
-        if (mx.addedNodes) {
-          var d = mx.addedNodes[0];
-          while (d && d !== document && !d.host) {
-            d = d.parentNode;
-          }
-          var u = d && (d.URL || d._URL || (d.host && d.host.localName)) || '';
-          u = u.split('/?').shift().split('/').pop();
-        }
-    }
-    console.group('mutations (%d) [%s]', mutations.length, u || '');
-  }
-  //
-  mutations.forEach(function(mx) {
-    //logFlags.dom && console.group('mutation');
-    if (mx.type === 'childList') {
-      forEach(mx.addedNodes, function(n) {
-        //logFlags.dom && console.log(n.localName);
-        if (filter(n)) {
-          return;
-        }
-        // nodes added may need lifecycle management
-        addedNode(n);
-      });
-      // removed nodes may need lifecycle management
-      forEach(mx.removedNodes, function(n) {
-        //logFlags.dom && console.log(n.localName);
-        if (filter(n)) {
-          return;
-        }
-        removedNode(n);
-      });
-    }
-    //logFlags.dom && console.groupEnd();
-  });
-  logFlags.dom && console.groupEnd();
-};
-
-var observer = new MutationObserver(handler);
-
-function takeRecords() {
-  // TODO(sjmiles): ask Raf why we have to call handler ourselves
-  handler(observer.takeRecords());
-  takeMutations();
-}
-
-var forEach = Array.prototype.forEach.call.bind(Array.prototype.forEach);
-
-function observe(inRoot) {
-  observer.observe(inRoot, {childList: true, subtree: true});
-}
-
-function observeDocument(document) {
-  observe(document);
-}
-
-function upgradeDocument(document) {
-  logFlags.dom && console.group('upgradeDocument: ', (document.URL || document._URL || '').split('/').pop());
-  addedNode(document);
-  logFlags.dom && console.groupEnd();
-}
-
-// exports
-
-scope.watchShadow = watchShadow;
-scope.upgradeAll = addedNode;
-scope.upgradeSubtree = addedSubtree;
-
-scope.observeDocument = observeDocument;
-scope.upgradeDocument = upgradeDocument;
-
-scope.takeRecords = takeRecords;
-
-})(window.CustomElements);
+window.CustomElements = window.CustomElements || {flags:{}};
+(function(scope){

+

+var logFlags = window.logFlags || {};

+

+// walk the subtree rooted at node, applying 'find(element, data)' function

+// to each element

+// if 'find' returns true for 'element', do not search element's subtree

+function findAll(node, find, data) {

+  var e = node.firstElementChild;

+  if (!e) {

+    e = node.firstChild;

+    while (e && e.nodeType !== Node.ELEMENT_NODE) {

+      e = e.nextSibling;

+    }

+  }

+  while (e) {

+    if (find(e, data) !== true) {

+      findAll(e, find, data);

+    }

+    e = e.nextElementSibling;

+  }

+  return null;

+}

+

+// walk all shadowRoots on a given node.

+function forRoots(node, cb) {

+  var root = node.shadowRoot;

+  while(root) {

+    forSubtree(root, cb);

+    root = root.olderShadowRoot;

+  }

+}

+

+// walk the subtree rooted at node, including descent into shadow-roots,

+// applying 'cb' to each element

+function forSubtree(node, cb) {

+  //logFlags.dom && node.childNodes && node.childNodes.length && console.group('subTree: ', node);

+  findAll(node, function(e) {

+    if (cb(e)) {

+      return true;

+    }

+    forRoots(e, cb);

+  });

+  forRoots(node, cb);

+  //logFlags.dom && node.childNodes && node.childNodes.length && console.groupEnd();

+}

+

+// manage lifecycle on added node

+function added(node) {

+  if (upgrade(node)) {

+    insertedNode(node);

+    return true;

+  }

+  inserted(node);

+}

+

+// manage lifecycle on added node's subtree only

+function addedSubtree(node) {

+  forSubtree(node, function(e) {

+    if (added(e)) {

+      return true;

+    }

+  });

+}

+

+// manage lifecycle on added node and it's subtree

+function addedNode(node) {

+  return added(node) || addedSubtree(node);

+}

+

+// upgrade custom elements at node, if applicable

+function upgrade(node) {

+  if (!node.__upgraded__ && node.nodeType === Node.ELEMENT_NODE) {

+    var type = node.getAttribute('is') || node.localName;

+    var definition = scope.registry[type];

+    if (definition) {

+      logFlags.dom && console.group('upgrade:', node.localName);

+      scope.upgrade(node);

+      logFlags.dom && console.groupEnd();

+      return true;

+    }

+  }

+}

+

+function insertedNode(node) {

+  inserted(node);

+  if (inDocument(node)) {

+    forSubtree(node, function(e) {

+      inserted(e);

+    });

+  }

+}

+

+

+// TODO(sorvell): on platforms without MutationObserver, mutations may not be

+// reliable and therefore entered/leftView are not reliable.

+// To make these callbacks less likely to fail, we defer all inserts and removes

+// to give a chance for elements to be inserted into dom.

+// This ensures enteredViewCallback fires for elements that are created and

+// immediately added to dom.

+var hasPolyfillMutations = (!window.MutationObserver ||

+    (window.MutationObserver === window.JsMutationObserver));

+scope.hasPolyfillMutations = hasPolyfillMutations;

+

+var isPendingMutations = false;

+var pendingMutations = [];

+function deferMutation(fn) {

+  pendingMutations.push(fn);

+  if (!isPendingMutations) {

+    isPendingMutations = true;

+    var async = (window.Platform && window.Platform.endOfMicrotask) ||

+        setTimeout;

+    async(takeMutations);

+  }

+}

+

+function takeMutations() {

+  isPendingMutations = false;

+  var $p = pendingMutations;

+  for (var i=0, l=$p.length, p; (i<l) && (p=$p[i]); i++) {

+    p();

+  }

+  pendingMutations = [];

+}

+

+function inserted(element) {

+  if (hasPolyfillMutations) {

+    deferMutation(function() {

+      _inserted(element);

+    });

+  } else {

+    _inserted(element);

+  }

+}

+

+// TODO(sjmiles): if there are descents into trees that can never have inDocument(*) true, fix this

+function _inserted(element) {

+  // TODO(sjmiles): it's possible we were inserted and removed in the space

+  // of one microtask, in which case we won't be 'inDocument' here

+  // But there are other cases where we are testing for inserted without

+  // specific knowledge of mutations, and must test 'inDocument' to determine

+  // whether to call inserted

+  // If we can factor these cases into separate code paths we can have

+  // better diagnostics.

+  // TODO(sjmiles): when logging, do work on all custom elements so we can

+  // track behavior even when callbacks not defined

+  //console.log('inserted: ', element.localName);

+  if (element.enteredViewCallback || (element.__upgraded__ && logFlags.dom)) {

+    logFlags.dom && console.group('inserted:', element.localName);

+    if (inDocument(element)) {

+      element.__inserted = (element.__inserted || 0) + 1;

+      // if we are in a 'removed' state, bluntly adjust to an 'inserted' state

+      if (element.__inserted < 1) {

+        element.__inserted = 1;

+      }

+      // if we are 'over inserted', squelch the callback

+      if (element.__inserted > 1) {

+        logFlags.dom && console.warn('inserted:', element.localName,

+          'insert/remove count:', element.__inserted)

+      } else if (element.enteredViewCallback) {

+        logFlags.dom && console.log('inserted:', element.localName);

+        element.enteredViewCallback();

+      }

+    }

+    logFlags.dom && console.groupEnd();

+  }

+}

+

+function removedNode(node) {

+  removed(node);

+  forSubtree(node, function(e) {

+    removed(e);

+  });

+}

+

+function removed(element) {

+  if (hasPolyfillMutations) {

+    deferMutation(function() {

+      _removed(element);

+    });

+  } else {

+    _removed(element);

+  }

+}

+

+function _removed(element) {

+  // TODO(sjmiles): temporary: do work on all custom elements so we can track

+  // behavior even when callbacks not defined

+  if (element.leftViewCallback || (element.__upgraded__ && logFlags.dom)) {

+    logFlags.dom && console.log('removed:', element.localName);

+    if (!inDocument(element)) {

+      element.__inserted = (element.__inserted || 0) - 1;

+      // if we are in a 'inserted' state, bluntly adjust to an 'removed' state

+      if (element.__inserted > 0) {

+        element.__inserted = 0;

+      }

+      // if we are 'over removed', squelch the callback

+      if (element.__inserted < 0) {

+        logFlags.dom && console.warn('removed:', element.localName,

+            'insert/remove count:', element.__inserted)

+      } else if (element.leftViewCallback) {

+        element.leftViewCallback();

+      }

+    }

+  }

+}

+

+function inDocument(element) {

+  var p = element;

+  var doc = window.ShadowDOMPolyfill &&

+      window.ShadowDOMPolyfill.wrapIfNeeded(document) || document;

+  while (p) {

+    if (p == doc) {

+      return true;

+    }

+    p = p.parentNode || p.host;

+  }

+}

+

+function watchShadow(node) {

+  if (node.shadowRoot && !node.shadowRoot.__watched) {

+    logFlags.dom && console.log('watching shadow-root for: ', node.localName);

+    // watch all unwatched roots...

+    var root = node.shadowRoot;

+    while (root) {

+      watchRoot(root);

+      root = root.olderShadowRoot;

+    }

+  }

+}

+

+function watchRoot(root) {

+  if (!root.__watched) {

+    observe(root);

+    root.__watched = true;

+  }

+}

+

+function handler(mutations) {

+  //

+  if (logFlags.dom) {

+    var mx = mutations[0];

+    if (mx && mx.type === 'childList' && mx.addedNodes) {

+        if (mx.addedNodes) {

+          var d = mx.addedNodes[0];

+          while (d && d !== document && !d.host) {

+            d = d.parentNode;

+          }

+          var u = d && (d.URL || d._URL || (d.host && d.host.localName)) || '';

+          u = u.split('/?').shift().split('/').pop();

+        }

+    }

+    console.group('mutations (%d) [%s]', mutations.length, u || '');

+  }

+  //

+  mutations.forEach(function(mx) {

+    //logFlags.dom && console.group('mutation');

+    if (mx.type === 'childList') {

+      forEach(mx.addedNodes, function(n) {

+        //logFlags.dom && console.log(n.localName);

+        if (!n.localName) {

+          return;

+        }

+        // nodes added may need lifecycle management

+        addedNode(n);

+      });

+      // removed nodes may need lifecycle management

+      forEach(mx.removedNodes, function(n) {

+        //logFlags.dom && console.log(n.localName);

+        if (!n.localName) {

+          return;

+        }

+        removedNode(n);

+      });

+    }

+    //logFlags.dom && console.groupEnd();

+  });

+  logFlags.dom && console.groupEnd();

+};

+

+var observer = new MutationObserver(handler);

+

+function takeRecords() {

+  // TODO(sjmiles): ask Raf why we have to call handler ourselves

+  handler(observer.takeRecords());

+  takeMutations();

+}

+

+var forEach = Array.prototype.forEach.call.bind(Array.prototype.forEach);

+

+function observe(inRoot) {

+  observer.observe(inRoot, {childList: true, subtree: true});

+}

+

+function observeDocument(document) {

+  observe(document);

+}

+

+function upgradeDocument(document) {

+  logFlags.dom && console.group('upgradeDocument: ', (document.URL || document._URL || '').split('/').pop());

+  addedNode(document);

+  logFlags.dom && console.groupEnd();

+}

+

+// exports

+

+scope.watchShadow = watchShadow;

+scope.upgradeAll = addedNode;

+scope.upgradeSubtree = addedSubtree;

+

+scope.observeDocument = observeDocument;

+scope.upgradeDocument = upgradeDocument;

+

+scope.takeRecords = takeRecords;

+

+})(window.CustomElements);

 
 /**
  * Implements `document.register`
@@ -1031,8 +1015,10 @@
       // offer guidance)
       throw new Error('document.register: first argument (\'name\') must contain a dash (\'-\'). Argument provided was \'' + String(name) + '\'.');
     }
-    // record name
-    definition.name = name;
+    // elements may only be registered once
+    if (getRegisteredDefinition(name)) {
+      throw new Error('DuplicateDefinitionError: a type with name \'' + String(name) + '\' is already registered');
+    }
     // must have a prototype, default to an extension of HTMLElement
     // TODO(sjmiles): probably should throw if no prototype, check spec
     if (!definition.prototype) {
@@ -1040,6 +1026,8 @@
       // offer guidance)
       throw new Error('Options missing required prototype property');
     }
+    // record name
+    definition.name = name.toLowerCase();
     // ensure a lifecycle object so we don't have to null test it
     definition.lifecycle = definition.lifecycle || {};
     // build a list of ancestral custom elements (for native base detection)
@@ -1055,7 +1043,7 @@
     // overrides to implement attributeChanged callback
     overrideAttributeApi(definition.prototype);
     // 7.1.5: Register the DEFINITION with DOCUMENT
-    registerDefinition(name, definition);
+    registerDefinition(definition.name, definition);
     // 7.1.7. Run custom element constructor generation algorithm with PROTOTYPE
     // 7.1.8. Return the output of the previous step.
     definition.ctor = generateConstructor(definition);
@@ -1071,7 +1059,7 @@
   }
 
   function ancestry(extnds) {
-    var extendee = registry[extnds];
+    var extendee = getRegisteredDefinition(extnds);
     if (extendee) {
       return ancestry(extendee.extends).concat([extendee]);
     }
@@ -1139,6 +1127,8 @@
     if (definition.is) {
       element.setAttribute('is', definition.is);
     }
+    // remove 'unresolved' attr, which is a standin for :unresolved.
+    element.removeAttribute('unresolved');
     // make 'element' implement definition.prototype
     implement(element, definition);
     // flag as upgraded
@@ -1176,7 +1166,7 @@
     // HTMLElement.prototype, so we add a test
     // the idea is to avoid mixing in native prototypes, so adding
     // the second test is WLOG
-    while (p && p !== inNative && p !== HTMLUnknownElement.prototype) {
+    while (p !== inNative && p !== HTMLUnknownElement.prototype) {
       var keys = Object.getOwnPropertyNames(p);
       for (var i=0, k; k=keys[i]; i++) {
         if (!used[k]) {
@@ -1202,6 +1192,9 @@
     // overrides to implement callbacks
     // TODO(sjmiles): should support access via .attributes NamedNodeMap
     // TODO(sjmiles): preserves user defined overrides, if any
+    if (prototype.setAttribute._polyfilled) {
+      return;
+    }
     var setAttribute = prototype.setAttribute;
     prototype.setAttribute = function(name, value) {
       changeAttribute.call(this, name, value, setAttribute);
@@ -1210,14 +1203,18 @@
     prototype.removeAttribute = function(name) {
       changeAttribute.call(this, name, null, removeAttribute);
     }
+    prototype.setAttribute._polyfilled = true;
   }
 
+  // https://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/custom/
+  // index.html#dfn-attribute-changed-callback
   function changeAttribute(name, value, operation) {
     var oldValue = this.getAttribute(name);
     operation.apply(this, arguments);
+    var newValue = this.getAttribute(name);
     if (this.attributeChangedCallback
-        && (this.getAttribute(name) !== oldValue)) {
-      this.attributeChangedCallback(name, oldValue, value);
+        && (newValue !== oldValue)) {
+      this.attributeChangedCallback(name, oldValue, newValue);
     }
   }
 
@@ -1225,9 +1222,15 @@
 
   var registry = {};
 
+  function getRegisteredDefinition(name) {
+    if (name) {
+      return registry[name.toLowerCase()];
+    }
+  }
+
   function registerDefinition(name, definition) {
     if (registry[name]) {
-      throw new Error('Cannot register a tag more than once');
+      throw new Error('a type with that name is already registered.');
     }
     registry[name] = definition;
   }
@@ -1239,7 +1242,9 @@
   }
 
   function createElement(tag, typeExtension) {
-    var definition = registry[typeExtension || tag];
+    // TODO(sjmiles): ignore 'tag' when using 'typeExtension', we could
+    // error check it, or perhaps there should only ever be one argument
+    var definition = getRegisteredDefinition(typeExtension || tag);
     if (definition) {
       if (tag == definition.tag && typeExtension == definition.is) {
         return new definition.ctor();
@@ -1377,7 +1382,7 @@
 CustomElements.parser = parser;
 
 })();
-(function(){
+(function(scope){
 
 // bootstrap parsing
 function bootstrap() {
@@ -1409,44 +1414,50 @@
 // CustomEvent shim for IE
 if (typeof window.CustomEvent !== 'function') {
   window.CustomEvent = function(inType) {
-     var e = document.createEvent('HTMLEvents');
-     e.initEvent(inType, true, true);
-     return e;
+    var e = document.createEvent('HTMLEvents');
+    e.initEvent(inType, true, true);
+    return e;
   };
 }
 
-if (document.readyState === 'complete') {
+// When loading at readyState complete time (or via flag), boot custom elements
+// immediately.
+// If relevant, HTMLImports must already be loaded.
+if (document.readyState === 'complete' || scope.flags.eager) {
   bootstrap();
+// When loading at readyState interactive time, bootstrap only if HTMLImports
+// are not pending. Also avoid IE as the semantics of this state are unreliable.
+} else if (document.readyState === 'interactive' && !window.attachEvent &&
+    (!window.HTMLImports || window.HTMLImports.ready)) {
+  bootstrap();
+// When loading at other readyStates, wait for the appropriate DOM event to
+// bootstrap.
 } else {
   var loadEvent = window.HTMLImports ? 'HTMLImportsLoaded' :
       document.readyState == 'loading' ? 'DOMContentLoaded' : 'load';
   window.addEventListener(loadEvent, bootstrap);
 }
 
-})();
+})(window.CustomElements);
 
 (function() {
 // Patch to allow custom element and shadow dom to work together, from:
-// https://github.com/Polymer/platform/blob/master/src/patches-shadowdom-polyfill.js
+// https://github.com/Polymer/platform-dev/blob/60ece8c323c5d9325cbfdfd6e8cd180d4f38a3bc/src/patches-shadowdom-polyfill.js
 // include .host reference
 if (HTMLElement.prototype.createShadowRoot) {
   var originalCreateShadowRoot = HTMLElement.prototype.createShadowRoot;
   HTMLElement.prototype.createShadowRoot = function() {
     var root = originalCreateShadowRoot.call(this);
     root.host = this;
+    CustomElements.watchShadow(this);
     return root;
   }
 }
 
 
 // Patch to allow custom elements and shadow dom to work together, from:
-// https://github.com/Polymer/platform/blob/master/src/patches-custom-elements.js
+// https://github.com/Polymer/platform-dev/blob/2bb9c56d90f9ac19c2e65cdad368668aff514f14/src/patches-custom-elements.js
 if (window.ShadowDOMPolyfill) {
-  function nop() {};
-
-  // disable shadow dom watching
-  CustomElements.watchShadow = nop;
-  CustomElements.watchAllShadows = nop;
 
   // ensure wrapped inputs for these functions
   var fns = ['upgradeAll', 'upgradeSubtree', 'observeDocument',
@@ -1461,9 +1472,21 @@
   // override
   fns.forEach(function(fn) {
     CustomElements[fn] = function(inNode) {
-      return original[fn](ShadowDOMPolyfill.wrapIfNeeded(inNode));
+      return original[fn](window.ShadowDOMPolyfill.wrapIfNeeded(inNode));
     };
   });
+
+}
+
+// Patch to make importNode work.
+// https://github.com/Polymer/platform-dev/blob/64a92f273462f04a84abbe2f054294f2b62dbcd6/src/patches-mdv.js
+if (window.CustomElements && !CustomElements.useNative) {
+  var originalImportNode = Document.prototype.importNode;
+  Document.prototype.importNode = function(node, deep) {
+    var imported = originalImportNode.call(this, node, deep);
+    CustomElements.upgradeAll(imported);
+    return imported;
+  }
 }
 
 })();
diff --git a/pkg/custom_element/lib/custom-elements.min.js b/pkg/custom_element/lib/custom-elements.min.js
index 68a7b78..cb5746f 100644
--- a/pkg/custom_element/lib/custom-elements.min.js
+++ b/pkg/custom_element/lib/custom-elements.min.js
@@ -25,4 +25,4 @@
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-window.CustomElements={flags:{}};var SideTable;if("undefined"!=typeof WeakMap&&navigator.userAgent.indexOf("Firefox/")<0?SideTable=WeakMap:function(){var a=Object.defineProperty,b=Date.now()%1e9;SideTable=function(){this.name="__st"+(1e9*Math.random()>>>0)+(b++ +"__")},SideTable.prototype={set:function(b,c){var d=b[this.name];d&&d[0]===b?d[1]=c:a(b,this.name,{value:[b,c],writable:!0})},get:function(a){var b;return(b=a[this.name])&&b[0]===a?b[1]:void 0},"delete":function(a){this.set(a,void 0)}}}(),function(a){function b(a){u.push(a),t||(t=!0,q(d))}function c(a){return window.ShadowDOMPolyfill&&window.ShadowDOMPolyfill.wrapIfNeeded(a)||a}function d(){t=!1;var a=u;u=[],a.sort(function(a,b){return a.uid_-b.uid_});var b=!1;a.forEach(function(a){var c=a.takeRecords();e(a),c.length&&(a.callback_(c,a),b=!0)}),b&&d()}function e(a){a.nodes_.forEach(function(b){var c=p.get(b);c&&c.forEach(function(b){b.observer===a&&b.removeTransientObservers()})})}function f(a,b){for(var c=a;c;c=c.parentNode){var d=p.get(c);if(d)for(var e=0;e<d.length;e++){var f=d[e],g=f.options;if(c===a||g.subtree){var h=b(g);h&&f.enqueue(h)}}}}function g(a){this.callback_=a,this.nodes_=[],this.records_=[],this.uid_=++v}function h(a,b){this.type=a,this.target=b,this.addedNodes=[],this.removedNodes=[],this.previousSibling=null,this.nextSibling=null,this.attributeName=null,this.attributeNamespace=null,this.oldValue=null}function i(a){var b=new h(a.type,a.target);return b.addedNodes=a.addedNodes.slice(),b.removedNodes=a.removedNodes.slice(),b.previousSibling=a.previousSibling,b.nextSibling=a.nextSibling,b.attributeName=a.attributeName,b.attributeNamespace=a.attributeNamespace,b.oldValue=a.oldValue,b}function j(a,b){return w=new h(a,b)}function k(a){return x?x:(x=i(w),x.oldValue=a,x)}function l(){w=x=void 0}function m(a){return a===x||a===w}function n(a,b){return a===b?a:x&&m(a)?x:null}function o(a,b,c){this.observer=a,this.target=b,this.options=c,this.transientObservedNodes=[]}var p=new 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\ No newline at end of file
diff --git a/pkg/custom_element/pubspec.yaml b/pkg/custom_element/pubspec.yaml
index 772a543..2ed1f29 100644
--- a/pkg/custom_element/pubspec.yaml
+++ b/pkg/custom_element/pubspec.yaml
@@ -1,6 +1,6 @@
 name: custom_element
-version: 0.9.0
-author: "Web UI Team <web-ui-dev@dartlang.org>"
+version: 0.9.1+1
+author: "Polymer.dart Team <web-ui-dev@dartlang.org>"
 homepage: http://www.dartlang.org/
 description: >
   Custom Elements let authors define their own elements. Authors associate code
@@ -11,4 +11,4 @@
 dev_dependencies:
   unittest: ">=0.9.0 <0.10.0"
 environment:
-  sdk: ">=0.8.10+6 <2.0.0"
+  sdk: ">=1.0.0 <2.0.0"
diff --git a/pkg/docgen/bin/docgen.dart b/pkg/docgen/bin/docgen.dart
index d81e5bc..7a19f65 100644
--- a/pkg/docgen/bin/docgen.dart
+++ b/pkg/docgen/bin/docgen.dart
@@ -34,7 +34,8 @@
       append: results['append'] && new Directory(results['out']).existsSync(),
       introduction: introduction,
       out: results['out'],
-      excludeLibraries: excludedLibraries);
+      excludeLibraries: excludedLibraries,
+      includeDependentPackages: results['include-dependent-packages']);
 }
 
 /**
@@ -84,5 +85,10 @@
       help: 'Exclude the library by this name from the documentation',
       allowMultiple: true,
       callback: (libs) => excludedLibraries.addAll(libs));
+  parser.addFlag('include-dependent-packages',
+      help: 'Assumes we are documenting a single package and are running '
+        'in the directory with its pubspec. Includes documentation for all '
+        'of its dependent packages.',
+      defaultsTo: false, negatable: false);
   return parser;
 }
diff --git a/pkg/docgen/lib/docgen.dart b/pkg/docgen/lib/docgen.dart
index fb0094f..d75b60f 100644
--- a/pkg/docgen/lib/docgen.dart
+++ b/pkg/docgen/lib/docgen.dart
@@ -66,6 +66,9 @@
 /// This is set from the command line arguments flag --include-private
 bool _includePrivate = false;
 
+/// This is set from the command line flag --include-dependent-packages
+bool _includeDependentPackages = false;
+
 /// Library names to explicitly exclude.
 ///
 ///   Set from the command line option
@@ -90,10 +93,12 @@
 Future<bool> docgen(List<String> files, {String packageRoot,
     bool outputToYaml: true, bool includePrivate: false, bool includeSdk: false,
     bool parseSdk: false, bool append: false, String introduction: '',
-    out: DEFAULT_OUTPUT_DIRECTORY, List<String> excludeLibraries}) {
+    out: DEFAULT_OUTPUT_DIRECTORY, List<String> excludeLibraries,
+    bool includeDependentPackages}) {
   _excluded = excludeLibraries;
   _includePrivate = includePrivate;
   _outputDirectory = out;
+  _includeDependentPackages = includeDependentPackages;
   if (!append) {
     var dir = new Directory(_outputDirectory);
     if (dir.existsSync()) dir.deleteSync(recursive: true);
@@ -109,6 +114,9 @@
     }
   }
   logger.info('Package Root: ${packageRoot}');
+  if (_includeDependentPackages) {
+    files.addAll(allDependentPackageDirs(files.first));
+  }
   var requestedLibraries = _listLibraries(files);
   var allLibraries = []..addAll(requestedLibraries);
   if (includeSdk) {
@@ -142,6 +150,17 @@
     });
 }
 
+/// All of the directories for our dependent packages
+List<String> allDependentPackageDirs(String packageDirectory) {
+  var dependentsJson = Process.runSync('pub', ['list-package-dirs'],
+      workingDirectory: packageDirectory, runInShell: true);
+  if (dependentsJson.exitCode != 0) {
+    print(dependentsJson.stderr);
+  }
+  var dependents = JSON.decode(dependentsJson.stdout)['packages'];
+  return dependents.values.toList();
+}
+
 /// For a library's [mirror], determine the name of the package (if any) we
 /// believe it came from (because of its file URI).
 ///
@@ -180,7 +199,7 @@
           .startsWith('README'))).toList();
   if (readmes.isEmpty) return '';
   // If there are multiples, pick the shortest name.
-  readmes.sort((a, b) => a.length.compareTo(b.length));
+  readmes.sort((a, b) => a.path.length.compareTo(b.path.length));
   var readme = readmes.first;
   var linkResolver = (name) => fixReference(name, null, null, null);
   var contents = markdown.markdownToHtml(readme
@@ -1137,7 +1156,7 @@
         // and tell them to update their links, given these other exported
         // names within the library.
         for (Exported member in library._exportedMembers.values) {
-          member.updateExports(library._exportedMembers.keys);
+          member.updateExports(library._exportedMembers);
         }
       }
     }
diff --git a/pkg/docgen/pubspec.yaml b/pkg/docgen/pubspec.yaml
index 5afaebe..01d6d5e 100644
--- a/pkg/docgen/pubspec.yaml
+++ b/pkg/docgen/pubspec.yaml
@@ -1,5 +1,5 @@
 name: docgen
-version: 0.9.0
+version: 0.9.1
 author: "Dart Team <misc@dartlang.org>"
 homepage: https://github.com/dart-lang/dartdoc-viewer
 description: A documentation generator for the Dart repository.
@@ -10,7 +10,7 @@
     git:
       ref: emilysEdits
       url: https://github.com/efortuna/dart-markdown
-  path: ">=0.9.0 <0.10.0"
+  path: ">=0.9.0 <2.0.0"
   yaml: ">=0.9.0 <0.10.0"
 dev_dependencies:
   unittest: ">=0.9.0 <0.10.0"
diff --git a/pkg/html_import/pubspec.yaml b/pkg/html_import/pubspec.yaml
index 9d2ca0e..edcaebb 100644
--- a/pkg/html_import/pubspec.yaml
+++ b/pkg/html_import/pubspec.yaml
@@ -1,6 +1,6 @@
 name: html_import
 version: 0.9.0
-author: "Web UI Team <web-ui-dev@dartlang.org>"
+author: "Polymer.dart Team <web-ui-dev@dartlang.org>"
 homepage: https://github.com/Polymer/HTMLImports/tree/master
 description: >
   HTML Imports are a way to include and reuse HTML documents in other HTML
@@ -8,4 +8,4 @@
   pages, imports let authors load full HTML resources. In particular, imports
   let authors include Custom Element definitions from external URLs.
 environment:
-  sdk: ">=0.8.10+6 <2.0.0"
+  sdk: ">=1.0.0 <2.0.0"
diff --git a/pkg/http/pubspec.yaml b/pkg/http/pubspec.yaml
index 80018b1..d3c751b 100644
--- a/pkg/http/pubspec.yaml
+++ b/pkg/http/pubspec.yaml
@@ -1,11 +1,11 @@
 name: http
-version: 0.9.0
+version: 0.9.2
 author: "Dart Team <misc@dartlang.org>"
 homepage: https://pub.dartlang.org/packages/http
 description: A composable, Future-based API for making HTTP requests.
 dependencies:
-  path: ">=0.9.0 <0.10.0"
-  stack_trace: ">=0.9.0 <0.10.0"
+  path: ">=0.9.0 <2.0.0"
+  stack_trace: ">=0.9.1 <0.10.0"
 dev_dependencies:
   unittest: ">=0.9.0 <0.10.0"
 environment:
diff --git a/pkg/http_server/README.md b/pkg/http_server/README.md
index 9d82386..f0b90f4 100644
--- a/pkg/http_server/README.md
+++ b/pkg/http_server/README.md
@@ -1,44 +1,19 @@
-Library of HTTP server classes.
+# http_server
 
 This package contains a set of high-level classes that, together with
 HttpServer, makes is easy to provide content through HTTP servers.
 
-## Virtual directory
+**NOTE:** This package currently only works for
+server-side or command-line Dart applications. In other words, if the app
+imports `dart:io`, it can use this package.
 
-The VirtualDirectory class makes it possible to easy serve static content from
-the drive. It supports:
+## Using
 
- *  Range-based request, making it possible to pause/resume downloads and stream
-    videos.
- *  If-Modified-Since based caching.
- *  Automatic GZip-compression of content.
- *  Ability to follow links within, either throughout the system or in a jailed
-    root.
- *  Optional directory listing.
+Please see the [API docs][docs] for explanations and examples.
 
- The following example shows how to set up a Virtual Directory of a given path
+## Filing issues
 
-    var virtualDirectory = new VirtualDirectory('/var/www/');
-    virtualDirectory.serve(new HttpServer('0.0.0.0', 8080));
+Please file issues for the http package at [http://dartbug.com/new][bugs].
 
-See [VirtualDirectory](
-http://api.dartlang.org/docs/http_server/VirtualDirectory.html)
-for more info about how to customize the class.
-
-## Virtual host
-
-The VirtualHost class makes it possible to serve multiple hosts on the same
-address, by using the `Host` field of the incoming requests. It also provides
-the ability to work on wildcards for sub-domains.
-
-    var virtualHost = new VirtualHost(server);
-    // Filter out on a specific host
-    var stream1 = virtualServer.addHost('static.myserver.com');
-    // Wildcard for any other sub-domains.
-    var stream2 = virtualServer.addHost('*.myserver.com');
-    // Requets not matching any hosts.
-    var stream3 = virtualServer.unhandled;
-
-See [VirtualHost](
-http://api.dartlang.org/docs/http_server/VirtualHost.html)
-for more information.
+[bugs]: http://dartbug.com/new
+[docs]: https://api.dartlang.org/docs/channels/stable/latest/http_server.html
\ No newline at end of file
diff --git a/pkg/http_server/lib/http_server.dart b/pkg/http_server/lib/http_server.dart
index aad6401..afaf71c 100644
--- a/pkg/http_server/lib/http_server.dart
+++ b/pkg/http_server/lib/http_server.dart
@@ -2,6 +2,76 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+/**
+ * A library for serving HTTP requests and resources.
+ *
+ * ## Installing ##
+ *
+ * Use [pub][] to install this package. Add the following to your
+ * `pubspec.yaml` file.
+ *
+ *     dependencies:
+ *       http_server: any
+ *
+ * Then run `pub install`.
+ *
+ * For more information, see the
+ * [http_server package on pub.dartlang.org][pub].
+ *
+ * ## Basic usage
+ *
+ * Here is a short example of how to serve all files from the current
+ * directory.
+ *
+ * 	import 'dart:io';
+ * 	import 'dart:async';
+ * 	import 'package:http_server/http_server.dart';
+ * 
+ * 	void main() {
+ * 	  var staticFiles = new VirtualDirectory('.')
+ * 	    ..allowDirectoryListing = true;
+ * 
+ * 	  runZoned(() {
+ * 	    HttpServer.bind('0.0.0.0', 7777).then((server) {
+ * 	      print('Server running');
+ * 	      server.listen(staticFiles.serveRequest);
+ * 	    });
+ * 	  },
+ * 	  onError: (e, stackTrace) => print('Oh noes! $e $stackTrace'));
+ *     }
+ *
+ * ## Virtual directory
+ * 
+ * The [VirtualDirectory] class makes it easy to serve static content
+ * from the file system. It supports:
+ * 
+ *  *  Range-based requests.
+ *  *  If-Modified-Since based caching.
+ *  *  Automatic GZip-compression of content.
+ *  *  Following symlinks, either throughout the system or inside
+ *     a jailed root.
+ *  *  Directory listing.
+ * 
+ * See [VirtualDirectory] for more information.
+ * 
+ * ## Virtual host
+ * 
+ * The [VirtualHost] class helps to serve multiple hosts on the same
+ * address, by using the `Host` field of the incoming requests. It also
+ * works with wildcards for sub-domains.
+ * 
+ *     var virtualHost = new VirtualHost(server);
+ *     // Filter out on a specific host
+ *     var stream1 = virtualServer.addHost('static.myserver.com');
+ *     // Wildcard for any other sub-domains.
+ *     var stream2 = virtualServer.addHost('*.myserver.com');
+ *     // Requets not matching any hosts.
+ *     var stream3 = virtualServer.unhandled;
+ * 
+ * See [VirtualHost] for more information.
+ *
+ * [pub]: http://pub.dartlang.org/packages/http_server
+ */
 library http_server;
 
 import 'dart:async';
diff --git a/pkg/http_server/pubspec.yaml b/pkg/http_server/pubspec.yaml
index 555569b..2c29396 100644
--- a/pkg/http_server/pubspec.yaml
+++ b/pkg/http_server/pubspec.yaml
@@ -1,12 +1,12 @@
 name: http_server
-version: 0.9.0
+version: 0.9.1
 author: Dart Team <misc@dartlang.org>
 description: Library of HTTP server classes.
 homepage: http://www.dartlang.org
 documentation: http://api.dartlang.org/docs/pkg/http_server
 dependencies:
   mime: ">=0.9.0 <0.10.0"
-  path: ">=0.9.0 <0.10.0"
+  path: ">=0.9.0 <2.0.0"
 dev_dependencies:
   unittest: ">=0.9.0 <0.10.0"
 environment:
diff --git a/pkg/intl/README.md b/pkg/intl/README.md
new file mode 100644
index 0000000..74594b9
--- /dev/null
+++ b/pkg/intl/README.md
@@ -0,0 +1,306 @@
+Intl
+====
+
+This package provides internationalization and localization facilities,
+including message translation, plurals and genders, date/number formatting
+and parsing, and bidirectional text.
+
+## General
+The most important library is [intl][intl_lib]. It defines the [Intl][Intl]
+class, with the default locale and methods for accessing most of the
+internationalization mechanisms. This library also defines the
+[DateFormat][DateFormat], [NumberFormat][NumberFormat], and
+[BidiFormatter][BidiFormatter] classes.
+
+## Current locale
+
+The package has a single current locale, called [defaultLocale][defaultLocale].
+Operations will use that locale unless told to do otherwise.
+
+To set the global locale, you can explicitly set it, e.g.
+
+      Intl.defaultLocale = 'pt_BR';
+
+or get it from the browser by
+
+      import "package:intl/intl_browser.dart";
+      ...
+      findSystemLocale().then(runTheRestOfMyProgram);
+
+To temporarily override the current locale, pass the operation
+to [withLocale][withLocale].
+
+      Intl.withLocale('fr', () => print(myLocalizedMessage());
+
+To override it for a very specific operation you can create a format object in
+a specific locale, or pass in the locale as a parameter to methods.
+
+      var format = new DateFormat.yMd("ar");
+      var dateString = format.format(new DateTime.now());
+      print(myMessage(dateString, locale: 'ar');
+
+## Initialization
+
+All the different types of locale data require an async initialization step
+to make
+sure the data is available. This reduces the size of the application by only
+loading the
+data that is actually required. However, deferred loading does not yet work for
+multiple
+libraries, so currently all the code will be included anyay, increasing the code
+size in the short term.
+
+Each different area of internationalization (messages, dates, numbers) requires
+a separate initialization process. That way, if the application only needs to
+format dates, it doesn't need to take the time or space to load up messages,
+numbers, or other things it may not need.
+
+With messages, there is also a need to import a file that won't exist until
+the code generation step has been run. This can be awkward, but can be worked
+around by creating a stub `messages_all.dart` file, running an empty translation
+step, or commenting out the import until translations are available.
+See "Extracting and Using Translated Messages"
+
+## Messages
+
+Messages to be localized are written as functions that return the result of
+an [Intl.message][Intl.message] call.
+
+      String continueMessage() => Intl.message(
+          "Hit any key to continue",
+          name: "continueMessage",
+          args: [],
+          desc: "Explains that we will not proceed further until "
+              "the user presses a key");
+      print(continueMessage());
+
+This provides, in addition to the basic message string, a name, a
+description for translators, the arguments used in the message, and
+examples. The `name` and `args` parameters are required, and must
+match the name and arguments list of the function.  In the future we
+hope to have these provided automatically.
+
+This can be run in the program before any translation has been done,
+and will just return the message string. It can also be extracted to a
+file and then be made to return a translated version without modifying
+the original program. See "Extracting Messages" below for more
+details.
+
+The purpose of wrapping the message in a function is to allow it to
+have parameters which can be used in the result. The message string is
+allowed to use a restricted form of Dart string interpolation, where
+only the function's parameters can be used, and only in simple
+expressions. Local variables cannot be used, and neither can
+expressions with curly braces. Only the message string can have
+interpolation. The name, desc, args, and examples must be literals and
+not contain interpolations. Only the args parameter can refer to
+variables, and it should list exactly the function parameters. If you
+are passing numbers or dates and you want them formatted, you must do
+the formatting outside the function and pass the formatted string into
+the message.
+
+      greetingMessage(name) => Intl.message(
+          "Hello $name!",
+          name: "greetingMessage",
+          args: [name],
+          desc: "Greet the user as they first open the application",
+          examples: {'name': "Emily"});
+      print(greetingMessage('Dan'));
+
+There is one special class of complex expressions allowed in the
+message string, for plurals and genders.
+
+      remainingEmailsMessage(int howMany, String userName) => 
+        Intl.message(
+          "${Intl.plural(howMany,
+              zero: 'There are no emails left for $userName.',
+              one: 'There is one email left for $userName.',
+              other: 'There are $howMany emails left for $userName.')}",
+        name: "remainingEmailsMessage",
+        args: [howMany, userName],
+        desc: "How many emails remain after archiving.",
+        examples: {'number': 42, 'userName': 'Fred'});
+
+      print(remainingEmailsMessage(1, "Fred"));
+
+However, since the typical usage for a plural or gender is for it to
+be at the top-level, we can also omit the [Intl.message][Intl.message] call and
+provide its parameters to the [Intl.plural][Intl.plural] call instead.
+
+      remainingEmailsMessage(int howMany, String userName) => 
+        Intl.plural(
+          howMany,
+          zero: 'There are no emails left for $userName.',
+          one: 'There is one email left for $userName.',
+          other: 'There are $howMany emails left for $userName.'),
+          name: "remainingEmailsMessage",
+          args: [howMany, userName],
+          desc: "How many emails remain after archiving.",
+          examples: {'number': 42, 'userName': 'Fred'});
+
+Similarly, there is an [Intl.gender][Intl.gender] message, and plurals
+and genders can be nested.
+
+      notOnlineMessage(String userName, String userGender) => 
+        Intl.gender(
+          userGender,
+          male: '$userName is unavailable because he is not online.',
+          female: '$userName is unavailable because she is not online.',
+          other: '$userName is unavailable because they are not online'),
+          name: "notOnlineMessage",
+          args: [userName, userGender],
+          desc: "The user is not available to hangout.",
+          examples: {{'userGender': 'male', 'userName': 'Fred'},
+              {'userGender': 'female', 'userName' : 'Alice'}});
+
+## Extracting And Using Translated Messages
+
+When your program contains messages that need translation, these must
+be extracted from the program source, sent to human translators, and the
+results need to be incorporated. This is still work in progress, and
+the extraction is done to a custom JSON format that is not supported
+by translation tools. We intend to support one or more actual
+translation file formats.
+
+To extract messages, run the `pkg/intl/test/extract_to_json.dart` program.
+
+      dart extract_to_json.dart --output-dir=target/directory
+          my_program.dart more_of_my_program.dart
+
+This will produce a file `intl_messages.json` with the messages from
+all of these programs. This is in a simple JSON format with a map from
+message names to message strings.
+
+The reverse step expects to receive a series of files, one per
+locale. These consist of a map with the entry for "_locale" indicating
+the locale, and with the function name mapped to the translated
+string. However, plurals and genders are currently represented in an
+opaque form, by serializing the internal objects that represent
+them. You can see the generation of this code in the
+`make_hardcoded_translation.dart` test file.
+
+If you manage to create such a set of input files, then you can run
+
+      dart generate_from_json.dart --generated_file_prefix=<prefix> 
+          <my dart files> <translated json files>
+
+This will generate Dart libraries, one per locale, which contain the
+translated versions. Your Dart libraries can import the primary file,
+named `<prefix>messages_all.dart`, and then call the initialization
+for a specific locale. Once that's done, any
+[Intl.message][Intl.message] calls made in the context of that locale
+will automatically print the translated version instead of the
+original.
+
+      import "my_prefix_messages_all.dart";
+      ...
+      initializeMessages("dk").then(printSomeMessages);
+
+Once the future returned from the initialization call returns, the
+message data is available.
+
+## Number Formatting and Parsing
+
+To format a number, create a NumberFormat instance.
+
+      var f = new NumberFormat("###.0#", "en_US");
+      print(f.format(12.345));
+        ==> 12.34
+
+The locale parameter is optional. If omitted, then it will use the
+current locale. The format string is as described in
+[NumberFormat][NumberFormat]
+
+It's also possible to access the number symbol data for the current
+locale, which provides information as to the various separator
+characters, patterns, and other information used for formatting, as
+
+      f.symbols
+
+Current known limitations are that the currency format will only print
+the name of the currency, and does not support currency symbols, and
+that the scientific format does not really agree with scientific
+notation. Number parsing is not yet implemented.
+
+Note that before doing any number formatting for a particular locale
+you must load the appropriate data by calling
+
+      import 'package:intl/number_symbols_data_local.dart';
+      ...
+      initializeNumberFormatting(localeName, null).then(formatNumbers);
+
+Once the future returned from the initialization call returns, the
+formatting data is available. Note that right now this includes all
+the data for a locales. We expect to make this use deferred loading to
+reduce code size.
+
+## Date Formatting and Parsing
+
+To format a [DateTime][DateTime], create a [DateFormat][DateFormat]
+instance. These can be created using a set of commonly used skeletons
+taken from ICU/CLDR or using an explicit pattern. For details on the
+supported skeletons and patterns see [DateFormat][DateFormat].
+
+      new DateFormat.yMMMMEEEEd().format(aDateTime);
+        ==> 'Wednesday, January 10, 2012'
+      new DateFormat("EEEEE", "en_US").format(aDateTime);
+        ==> 'Wednesday'
+      new DateFormat("EEEEE", "ln").format(aDateTime);
+        ==> 'mokÉ”lÉ” mwa mísáto'
+
+You can also parse dates using the same skeletons or patterns.
+
+        new DateFormat.yMd("en_US").parse("1/10/2012");
+        new DateFormat("Hms", "en_US").parse('14:23:01');
+
+Skeletons can be combined, the main use being to print a full date and
+time, e.g.
+
+        new DateFormat.yMEd().add_jms().format(new DateTime.now());
+          ==> 'Thu, 5/23/2013 10:21:47 AM'
+
+Known limitations: Time zones are not yet supported. Dart
+[DateTime][DateTime] objects don't have a time zone, so are either
+local or UTC. Formatting and parsing Durations is not yet implemented.
+
+Note that before doing any DateTime formatting for a particular
+locale, you must load the appropriate data by calling.
+
+        import 'package:intl/date_symbol_data_local.dart';
+        ...
+        initializeDateFormatting("de_DE", null).then(formatDates);
+
+Once the future returned from the initialization call returns, the
+formatting data is available.
+
+There are other mechanisms for loading the date formatting data
+implemented, but we expect to deprecate those in favor of having the
+data in a library as in the above, and using deferred loading to only
+load the portions that are needed. For the time being, this will
+include all of the data, which will increase code size.
+
+## Bidirectional Text
+
+The class [BidiFormatter][BidiFormatter] provides utilities for
+working with Bidirectional text. We can wrap the string with unicode
+directional indicator characters or with an HTML span to indicate
+direction. The direction can be specified with the
+[RTL][BidiFormatter.RTL] and [LTR][BidiFormatter.LTR] constructors, or
+detected from the text.
+
+        new BidiFormatter.RTL().wrapWithUnicode('xyz');
+        new BidiFormatter.RTL().wrapWithSpan('xyz');
+
+[intl_lib]: https://api.dartlang.org/docs/channels/stable/latest/intl.html
+[Intl]: https://api.dartlang.org/docs/channels/stable/latest/intl/Intl.html
+[DateFormat]: https://api.dartlang.org/docs/channels/stable/latest/intl/DateFormat.html
+[NumberFormat]: https://api.dartlang.org/docs/channels/stable/latest/intl/NumberFormat.html
+[withLocale]: https://api.dartlang.org/docs/channels/stable/latest/intl/Intl.html#withLocale
+[defaultLocale]: https://api.dartlang.org/docs/channels/stable/latest/intl/Intl.html#defaultLocale
+[Intl.message]: https://api.dartlang.org/docs/channels/stable/latest/intl/Intl.html#message
+[Intl.plural]: https://api.dartlang.org/docs/channels/stable/latest/intl/Intl.html#plural
+[Intl.gender]: https://api.dartlang.org/docs/channels/stable/latest/intl/Intl.html#gender
+[DateTime]: https://api.dartlang.org/docs/channels/stable/latest/dart_core/DateTime.html
+[BidiFormatter]: https://api.dartlang.org/docs/channels/stable/latest/intl/BidiFormatter.html
+[BidiFormatter.RTL]: https://api.dartlang.org/docs/channels/stable/latest/intl/BidiFormatter.html#RTL
+[BidiFormatter.LTR]: https://api.dartlang.org/docs/channels/stable/latest/intl/BidiFormatter.html#LTR
diff --git a/pkg/intl/lib/extract_messages.dart b/pkg/intl/lib/extract_messages.dart
index e57574d..b140dfb 100644
--- a/pkg/intl/lib/extract_messages.dart
+++ b/pkg/intl/lib/extract_messages.dart
@@ -147,7 +147,7 @@
    */
   void visitMethodDeclaration(MethodDeclaration node) {
     parameters = node.parameters;
-    if (parameters == null) parameters = new FormalParameterList();
+    if (parameters == null) parameters = new FormalParameterList(null, [], null, null, null);
     name = node.name.name;
     super.visitMethodDeclaration(node);
   }
@@ -158,7 +158,7 @@
    */
   void visitFunctionDeclaration(FunctionDeclaration node) {
     parameters = node.functionExpression.parameters;
-    if (parameters == null) parameters = new FormalParameterList();
+    if (parameters == null) parameters = new FormalParameterList(null, [], null, null, null);
     name = node.name.name;
     super.visitFunctionDeclaration(node);
   }
diff --git a/pkg/intl/lib/intl.dart b/pkg/intl/lib/intl.dart
index 87a8101..d14cb12 100644
--- a/pkg/intl/lib/intl.dart
+++ b/pkg/intl/lib/intl.dart
@@ -7,27 +7,17 @@
  * message formatting and replacement, date and number formatting and parsing,
  * and utilities for working with Bidirectional text.
  *
- * ## Installing ##
- *
- * Use [pub][] to install this package. Add the following to your `pubspec.yaml`
- * file.
- *
- *     dependencies:
- *       intl: any
- *
- * Then run `pub install`.
- *
- * For more information, see the
- * [intl package on pub.dartlang.org](http://pub.dartlang.org/packages/intl).
+ * This is part of the [intl package]
+ * (http://pub.dartlang.org/packages/intl).
  *
  * For things that require locale or other data, there are multiple different
  * ways of making that data available, which may require importing different
  * libraries. See the class comments for more details.
  *
  * There is also a simple example application that can be found in the
- * `example/basic` directory.
- *
- * [pub]: http://pub.dartlang.org
+ * [example/basic]
+ * (https://code.google.com/p/dart/source/browse/#svn%2Fbranches%2Fbleeding_edge%2Fdart%2Fpkg%2Fintl%2Fexample%2Fbasic)
+ *  directory.
  */
 library intl;
 
@@ -66,7 +56,7 @@
  *          args: [date],
  *          desc: 'Indicate the current date',
  *          examples: {'date' : 'June 8, 2012'});
- *      print(today(new DateTime.now());
+ *      print(today(new DateTime.now().toString());
  *
  *      msg(num_people, place) => Intl.message(
  *           '''I see ${Intl.plural(num_people,
@@ -81,7 +71,6 @@
  * Calling `msg(2, 'Athens');` would
  * produce "I see 2 other people in Athens." as output in the default locale.
  *
- * To use a locale other than the default, use the `withLocale` function.
  * You can set the default locale.
  *       Intl.defaultLocale = "pt_BR";
  *
diff --git a/pkg/intl/pubspec.yaml b/pkg/intl/pubspec.yaml
index 97bce62..44b4944 100644
--- a/pkg/intl/pubspec.yaml
+++ b/pkg/intl/pubspec.yaml
@@ -1,12 +1,12 @@
 name: intl
-version: 0.9.0
+version: 0.9.1
 author: Dart Team <misc@dartlang.org>
 description: Contains code to deal with internationalized/localized messages, date and number formatting and parsing, bi-directional text, and other internationalization issues.
 homepage: http://www.dartlang.org
 documentation: http://api.dartlang.org/docs/pkg/intl
 dependencies:
   analyzer: ">=0.10.1 <0.11.0"
-  path: ">=0.9.0 <0.10.0"
+  path: ">=0.9.0 <2.0.0"
 dev_dependencies:
   serialization: ">=0.9.0 <0.10.0"
   unittest: ">=0.9.0 <0.10.0"
diff --git a/pkg/intl/test/date_time_format_test_core.dart b/pkg/intl/test/date_time_format_test_core.dart
index 5d39090..65461e2 100644
--- a/pkg/intl/test/date_time_format_test_core.dart
+++ b/pkg/intl/test/date_time_format_test_core.dart
@@ -423,4 +423,18 @@
     var aDate = new DateTime(2012, 4, 27, 13, 58, 59, 012);
     expect(f.format(aDate), "118");
   });
+
+  // There are some very odd off-by-one bugs when parsing dates. Put in
+  // some very basic tests to try and get more information.
+  test('Simple Date Creation', () {
+    var format = new DateFormat(DateFormat.NUM_MONTH);
+    var first = format.parse("7");
+    var second = format.parse("7");
+    var basic = new DateTime(1970, 7);
+    var basicAgain = new DateTime(1970, 7);
+    expect(first, second);
+    expect(first, basic);
+    expect(basic, basicAgain);
+    expect(first.month, 7);
+  });
 }
\ No newline at end of file
diff --git a/pkg/intl/test/date_time_format_test_stub.dart b/pkg/intl/test/date_time_format_test_stub.dart
index 1aa1577..0a70535 100644
--- a/pkg/intl/test/date_time_format_test_stub.dart
+++ b/pkg/intl/test/date_time_format_test_stub.dart
@@ -53,7 +53,7 @@
 
   setUp(() {
     if(initialized) {
-      return;
+      return null;
     }
     return initFunction("en_US", dir)
         .then((_) {
diff --git a/pkg/logging/AUTHORS b/pkg/logging/AUTHORS
new file mode 100644
index 0000000..0617765
--- /dev/null
+++ b/pkg/logging/AUTHORS
@@ -0,0 +1,9 @@
+# Names should be added to this file with this pattern:
+#
+# For individuals:
+#   Name <email address>
+#
+# For organizations:
+#   Organization <fnmatch pattern>
+#
+Google Inc. <*@google.com>
diff --git a/pkg/logging/LICENSE b/pkg/logging/LICENSE
new file mode 100644
index 0000000..ee99930
--- /dev/null
+++ b/pkg/logging/LICENSE
@@ -0,0 +1,26 @@
+Copyright 2013, the Dart project authors. All rights reserved.
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+    * Neither the name of Google Inc. nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/pkg/logging/PATENTS b/pkg/logging/PATENTS
new file mode 100644
index 0000000..6954196
--- /dev/null
+++ b/pkg/logging/PATENTS
@@ -0,0 +1,23 @@
+Additional IP Rights Grant (Patents)
+
+"This implementation" means the copyrightable works distributed by
+Google as part of the Dart Project.
+
+Google hereby grants to you a perpetual, worldwide, non-exclusive,
+no-charge, royalty-free, irrevocable (except as stated in this
+section) patent license to make, have made, use, offer to sell, sell,
+import, transfer, and otherwise run, modify and propagate the contents
+of this implementation of Dart, where such license applies only to
+those patent claims, both currently owned by Google and acquired in
+the future, licensable by Google that are necessarily infringed by
+this implementation of Dart. This grant does not include claims that
+would be infringed only as a consequence of further modification of
+this implementation. If you or your agent or exclusive licensee
+institute or order or agree to the institution of patent litigation
+against any entity (including a cross-claim or counterclaim in a
+lawsuit) alleging that this implementation of Dart or any code
+incorporated within this implementation of Dart constitutes direct or
+contributory patent infringement, or inducement of patent
+infringement, then any patent rights granted to you under this License
+for this implementation of Dart shall terminate as of the date such
+litigation is filed.
diff --git a/pkg/logging/pubspec.yaml b/pkg/logging/pubspec.yaml
index 334113f..098558c 100644
--- a/pkg/logging/pubspec.yaml
+++ b/pkg/logging/pubspec.yaml
@@ -1,11 +1,14 @@
 name: logging
-version: 0.9.1-dev
+version: 0.9.1
 author: Dart Team <misc@dartlang.org>
-description: Provides APIs for debugging and error logging. This library introduces abstractions similar to those used in other languages, such as the Closure JS Logger and java.util.logging.Logger.
+description: >
+  Provides APIs for debugging and error logging. This library introduces
+  abstractions similar to those used in other languages, such as the Closure
+  JS Logger and java.util.logging.Logger.
 homepage: http://www.dartlang.org
 documentation: http://api.dartlang.org/docs/pkg/logging
 environment:
-  sdk: '>=0.8.10+6 <2.0.0'
+  sdk: '>=1.0.0 <2.0.0'
 dependencies:
   collection_helpers: '>=0.9.1 <0.10.0'
 dev_dependencies:
diff --git a/pkg/mutation_observer/pubspec.yaml b/pkg/mutation_observer/pubspec.yaml
index 4d320c3..631de39 100644
--- a/pkg/mutation_observer/pubspec.yaml
+++ b/pkg/mutation_observer/pubspec.yaml
@@ -1,6 +1,6 @@
 name: mutation_observer
 version: 0.9.0
-author: "Web UI Team <web-ui-dev@dartlang.org>"
+author: "Polymer.dart Team <web-ui-dev@dartlang.org>"
 homepage: https://code.google.com/p/dart/source/browse/branches/bleeding_edge/dart/pkg/mutation_observer/
 documentation: https://api.dartlang.org/docs/releases/latest/dart_html/MutationObserver.html
 description: >
@@ -8,4 +8,4 @@
 dev_dependencies:
   unittest: ">=0.9.0 <0.10.0"
 environment:
-  sdk: ">=0.8.10+6 <2.0.0"
+  sdk: ">=1.0.0 <2.0.0"
diff --git a/pkg/observe/lib/src/path_observer.dart b/pkg/observe/lib/src/path_observer.dart
index bec7eb8..5e59b80 100644
--- a/pkg/observe/lib/src/path_observer.dart
+++ b/pkg/observe/lib/src/path_observer.dart
@@ -334,9 +334,12 @@
 ClassMirror _safeSuperclass(ClassMirror type) {
   try {
     return type.superclass;
-  } on UnsupportedError catch (e) {
-    // TODO(jmesserly): dart2js throws this error when the type is not
+  } /*on UnsupportedError*/ catch (e) {
+    // Note: dart2js throws UnsupportedError when the type is not
     // reflectable.
+    // TODO(jmesserly): dart2js also throws a NoSuchMethodError if the `type` is
+    // a bound generic, because they are not fully implemented. See
+    // https://code.google.com/p/dart/issues/detail?id=15573
     return objectType;
   }
 }
diff --git a/pkg/observe/pubspec.yaml b/pkg/observe/pubspec.yaml
index 75dd77a..0bb50ce 100644
--- a/pkg/observe/pubspec.yaml
+++ b/pkg/observe/pubspec.yaml
@@ -1,5 +1,5 @@
 name: observe
-version: 0.9.1+1
+version: 0.9.2
 author: Polymer.dart Authors <web-ui-dev@dartlang.org>
 description: >
   Observable properties and objects for use in Model-Driven-Views (MDV).
@@ -12,7 +12,7 @@
   analyzer: ">=0.10.1 <0.11.0"
   barback: ">=0.9.0 <0.11.0"
   logging: ">=0.9.0 <0.10.0"
-  path: ">=0.9.0 <0.10.0"
+  path: ">=0.9.0 <2.0.0"
   source_maps: ">=0.9.0 <0.10.0"
 dev_dependencies:
   unittest: ">=0.9.0 <0.10.0"
diff --git a/pkg/path/pubspec.yaml b/pkg/path/pubspec.yaml
index 491c3bc..3b555a1 100644
--- a/pkg/path/pubspec.yaml
+++ b/pkg/path/pubspec.yaml
@@ -1,5 +1,5 @@
 name: path
-version: 1.0.0-rc.1
+version: 1.0.0
 author: Dart Team <misc@dartlang.org>
 description: >
  A string-based path manipulation library. All of the path operations you know
diff --git a/pkg/pkg.status b/pkg/pkg.status
index e6b3e7b..9c4ab8b 100644
--- a/pkg/pkg.status
+++ b/pkg/pkg.status
@@ -31,14 +31,15 @@
 collection_helpers/test/equality_test/none: Pass, Fail # Issue 14348
 collection_helpers/test/typed_buffers_test/01: Fail # Not supporting Int64List, Uint64List.
 
+[ $compiler == dart2js && $checked ]
+crypto/test/base64_test: Slow, Pass
+
 [ $compiler == dart2js && $checked && $runtime == ie9 ]
 crypto/test/base64_test: Timeout # Issue 12486
-
-[ $compiler == dart2js && $checked && $runtime == d8 ]
-serialization/test/serialization_test: Pass, RuntimeError # Issue 14735
+serialization/test/serialization_test: Skip
 
 [ $runtime == d8 || $runtime == jsshell ]
-unittest/test/unittest_nested_groups_setup_teardown_test: Pass, RuntimeError # http://dartbug.com/10109
+unittest/test/unittest_nested_groups_setup_teardown_test: RuntimeError # http://dartbug.com/10109
 stack_trace/test/vm_test: RuntimeError, OK # VM-specific traces
 stack_trace/test/chain_test: Fail # Issues 15171 and 15105
 sequence_zip/test/stream_test: RuntimeError, OK # Timers are not supported.
@@ -51,6 +52,7 @@
 polymer/test/bind_test: Skip # uses dart:html
 polymer/test/bind_mdv_test: Skip # uses dart:html
 polymer/test/custom_event_test: Skip # uses dart:html
+polymer/test/entered_view_test: Skip # uses dart:html
 polymer/test/event_handlers_test: Skip #uses dart:html
 polymer/test/event_path_declarative_test: Skip #uses dart:html
 polymer/test/event_path_test: Skip #uses dart:html
@@ -93,38 +95,33 @@
 
 [ $runtime == safari ]
 fixnum/test/int_64_test: Pass, Fail # Bug in JSC.
-crypto/test/hmac_sha1_test: Pass, Fail # Issue 11407.
-crypto/test/sha1_test: Fail # Issue 11407.
-stack_trace/test/trace_test: Fail # http://dartbug.com/12380
-crypto/test/sha256_test: Pass, Fail # Issue 12502
-crypto/test/hmac_sha256_test: Pass, Fail # Issue 12502
 
 # Unexplained errors only occuring on Safari.
 collection_helpers/test/typed_buffers_test: RuntimeError
 
 [ $runtime == ie9 || $runtime == ie10 ]
 polymer/example/canonicalization/test/canonicalization_deploy_test: Pass, Timeout
-polymer/example/canonicalization/test/canonicalization_test: Fail, Timeout, OK # tests development only behavior
+polymer/example/canonicalization/test/canonicalization_test: Timeout, OK # tests development only behavior
 polymer/test/attr_deserialize_test: Pass, Timeout # Issue 13260
 polymer/test/attr_mustache_test: Pass, Timeout # Issue 13260
-polymer/test/bind_test: Pass, Timeout # Issue 13260
-polymer/test/bind_mdv_test: Fail, Timeout # Issue 14412, 13260
-polymer/test/custom_event_test: Pass, Timeout # Issue 13260
-polymer/test/event_handlers_test: Pass, Timeout # Issue 13260
-polymer/test/event_path_declarative_test: Pass, Timeout # Issue 13260
-polymer/test/event_path_test: Pass, Timeout # Issue 13260
-polymer/test/events_test: Pass, Timeout # Issue 13260
-polymer/test/nested_binding_test: Pass, Timeout # Issue 13260
-polymer/test/noscript_test: Pass, Timeout # Issue 13260
-polymer/test/property_change_test: Pass, Timeout # Issue 13260
-polymer/test/prop_attr_reflection_test: Pass, Timeout # Issue 13260
-polymer/test/prop_attr_bind_reflection_test: Pass, Timeout # Issue 13260
-polymer/test/publish_attributes_test: Pass, Timeout # Issue 13260
-polymer/test/publish_inherited_properties_test: Pass, Timeout # Issue 13260
-polymer/test/register_test: Pass, Timeout # Issue 13260
-polymer/test/take_attributes_test: Pass, Timeout # Issue 13260
+polymer/test/bind_test: Timeout # Issue 13260
+polymer/test/bind_mdv_test: RuntimeError # Issue 14412, 13260
+polymer/test/custom_event_test: Timeout # Issue 13260
+polymer/test/entered_view_test: Timeout # Issue 13260
+polymer/test/event_handlers_test: Timeout # Issue 13260
+polymer/test/event_path_declarative_test: Timeout # Issue 13260
+polymer/test/event_path_test: Timeout # Issue 13260
+polymer/test/events_test: Timeout # Issue 13260
+polymer/test/nested_binding_test: Timeout # Issue 13260
+polymer/test/noscript_test: Timeout # Issue 13260
+polymer/test/property_change_test: Timeout # Issue 13260
+polymer/test/prop_attr_reflection_test: Timeout # Issue 13260
+polymer/test/prop_attr_bind_reflection_test: Timeout # Issue 13260
+polymer/test/publish_attributes_test: Timeout # Issue 13260
+polymer/test/publish_inherited_properties_test: Timeout # Issue 13260
+polymer/test/take_attributes_test: Timeout # Issue 13260
 polymer/test/template_distribute_dynamic_test: Pass, Timeout # Issue 13260
-polymer/test/unbind_test: Pass, Fail, Timeout # Issue 13260, 15259
+polymer/test/unbind_test: Timeout # Issue 13260, 15259
 
 # Skip browser-specific tests on VM
 [ $runtime == vm ]
@@ -136,9 +133,6 @@
 docgen/test/single_library_test: Fail # Issue 11985
 intl/test/find_default_locale_standalone_test: Fail # Issue 8110
 
-[ $compiler == dart2js ]
-stack_trace/test/trace_test: Pass, Timeout # Issue 11645
-
 [ $compiler == dartanalyzer ]
 # These tests are runtime negative but statically positive, so we skip
 # them in the analyzer.
@@ -181,18 +175,15 @@
 docgen/test/single_library_test: Fail # TODO(kasperl): Please triage.
 intl/test/date_time_format_http_request_test: Fail # TODO(kasperl): Please triage.
 
-[ $compiler == none && $runtime == vm && $system == windows ]
-http_server/test/http_body_test: Pass, Fail # Issue 14381
-
 [ $browser ]
 analyzer/test/generated/ast_test: Fail, OK # Uses dart:io.
 analyzer/test/generated/element_test: Fail, OK # Uses dart:io.
 analyzer/test/generated/parser_test: Fail, OK # Uses dart:io.
 analyzer/test/generated/resolver_test: Fail, OK # Uses dart:io.
-analyzer/test/error_test: Fail, Timeout, OK # Uses dart:io.
+analyzer/test/error_test: Fail, OK # Uses dart:io.
 analyzer/test/generated/element_test: Fail, OK # Uses dart:io.
 analyzer/test/generated/resolver_test: Fail, OK # Uses dart:io.
-analyzer/test/options_test: Fail, OK, Pass # Uses dart:io.
+analyzer/test/options_test: Fail, OK # Uses dart:io.
 analyzer/test/services/formatter_test: Fail, OK # Uses dart:io.
 analyzer/test/parse_compilation_unit_test: Fail, OK # Uses dart:io.
 barback/test/*: Fail, OK # Uses dart:io.
@@ -250,10 +241,6 @@
 
 polymer/test/unbind_test: Pass, Fail # Issue 15259
 
-[ $runtime == safari]
- # Bug in JSC: the test only passes when being debugged.
-crypto/test/hmac_md5_test: Fail, Pass
-
 [ $minified == false ]
 # The minified unittest tests test that the minified names of Dart types are
 # printed. Unminified versions of these tests exist that test the behavior when
@@ -267,7 +254,7 @@
 *: Skip  # Issue 13624
 
 [ $arch == simarm || $arch == simmips ]
-barback/test/too_many_open_files_test: Pass, Slow, Fail # 14220
+barback/test/too_many_open_files_test: Skip # 14220
 third_party/html5lib/test/tokenizer_test: Pass, Slow
 
 # Skip serialization test that explicitly has no library declaration in the
@@ -298,6 +285,9 @@
 polymer/test/custom_event_test: Pass, Crash # 14360
 polymer/example/canonicalization/test/canonicalization_deploy_test: Fail, OK # tests deploy only behavior
 
+[ $compiler == none && ( $runtime == dartium || $runtime == drt ) && $checked ]
+polymer/test/custom_event_test: Skip # http://dartbug.com/15517
+
 # Skip tests on the VM if the package depends on dart:html
 [ $runtime == vm ]
 custom_element: Skip
@@ -315,9 +305,6 @@
 [ $browser || $runtime == vm ]
 unittest/test/missing_tick_test: Fail, OK # Expected to fail, due to timeout.
 
-# Issue http://dartbug.com/12930
-[ $runtime == vm ]
-intl/test/message_extraction/message_extraction_test: Pass, Fail # Issue 12930
 
 [ $compiler == none && ($runtime == dartium || $runtime == drt) ]
 source_maps/test/parser_test: Pass, Timeout # Issue 13719: Please triage this failure.
@@ -335,11 +322,6 @@
 http/test/multipart_test: StaticWarning
 http/test/request_test: StaticWarning
 http/test/streamed_request_test: StaticWarning
-intl/test/date_time_format_file_even_test: StaticWarning
-intl/test/date_time_format_file_odd_test: StaticWarning
-intl/test/date_time_format_http_request_test: StaticWarning
-intl/test/date_time_format_local_even_test: StaticWarning
-intl/test/date_time_format_local_odd_test: StaticWarning
 unittest/test/matchers_test: StaticWarning, OK # testing error creating abstract class
 unittest/test/mock_test: StaticWarning, OK # testing unimplemented members
 
@@ -348,3 +330,6 @@
 
 [ $runtime == vm && ($system == windows || $system == linux) ]
 watcher/test/*/mac_os_test: Skip
+
+[ $runtime == vm && $system == macos ]
+watcher/test/directory_watcher/mac_os_test: Pass, Fail # Issue 15024
diff --git a/pkg/polymer/CHANGELOG.md b/pkg/polymer/CHANGELOG.md
new file mode 100644
index 0000000..d2e3eba
--- /dev/null
+++ b/pkg/polymer/CHANGELOG.md
@@ -0,0 +1,14 @@
+# changelog
+
+This file contains highlights of what changes on each version of the polymer
+package. We will also note important changes to the polyfill packages if they
+impact polymer: custom_element, html_import, observe, shadow_dom,
+and template_binding.
+
+#### Pub version 0.9.2+3
+  * fix [15574](https://code.google.com/p/dart/issues/detail?id=15574),
+    event bindings in dart2js, by working around issue
+    [15573](https://code.google.com/p/dart/issues/detail?id=15573)
+
+#### Pub version 0.9.2+2
+  * fix enteredView in dart2js, by using custom_element >= 0.9.1+1
diff --git a/pkg/polymer/README.md b/pkg/polymer/README.md
index d55786d..a940c3e 100644
--- a/pkg/polymer/README.md
+++ b/pkg/polymer/README.md
@@ -40,7 +40,7 @@
 
 ```yaml
 dependencies:
-  polymer: any
+  polymer: ">=0.9.0 <0.10.0"
 ```
 
 Instead of using `any`, we recommend using version ranges to avoid getting your
@@ -48,6 +48,7 @@
 package at your own pace. You can find the latest version number at
 <https://pub.dartlang.org/packages/polymer>.
 
+
 Building and Deploying
 ----------------------
 
diff --git a/pkg/polymer/example/canonicalization/test/canonicalization_deploy_test.html b/pkg/polymer/example/canonicalization/test/canonicalization_deploy_test.html
index 2f346f4..37bd302 100644
--- a/pkg/polymer/example/canonicalization/test/canonicalization_deploy_test.html
+++ b/pkg/polymer/example/canonicalization/test/canonicalization_deploy_test.html
@@ -10,7 +10,7 @@
     <title>Tests canonicalization at deployment time</title>
     <link rel="import" href="packages/canonicalization/a.html">
     <link rel="import" href="packages/canonicalization/b.html">
-    <script src="packages/unittest/test_controller.js"></script>
+    <script src="/root_dart/tools/testing/dart/test_controller.js"></script>
   </head>
   <body>
     <script type="application/dart" src="canonicalization_deploy_test.dart"></script>
diff --git a/pkg/polymer/example/canonicalization/test/canonicalization_test.html b/pkg/polymer/example/canonicalization/test/canonicalization_test.html
index fd9c8d9..8e94f83 100644
--- a/pkg/polymer/example/canonicalization/test/canonicalization_test.html
+++ b/pkg/polymer/example/canonicalization/test/canonicalization_test.html
@@ -10,7 +10,7 @@
     <title>Tests canonicalization during the development cycle</title>
     <link rel="import" href="packages/canonicalization/a.html">
     <link rel="import" href="packages/canonicalization/b.html">
-    <script src="packages/unittest/test_controller.js"></script>
+    <script src="/root_dart/tools/testing/dart/test_controller.js"></script>
   </head>
   <body>
     <script type="application/dart" src="canonicalization_test.dart"></script>
diff --git a/pkg/polymer/example/component/news/test/news_index_test.html b/pkg/polymer/example/component/news/test/news_index_test.html
index 1666751..cc0b98d 100644
--- a/pkg/polymer/example/component/news/test/news_index_test.html
+++ b/pkg/polymer/example/component/news/test/news_index_test.html
@@ -8,7 +8,7 @@
   <!--polymer-test: this comment is needed for test_suite.dart-->
   <title>Simple Web Components Example</title>
   <link rel="import" href="../web/news-component.html">
-  <script src="packages/unittest/test_controller.js"></script>
+  <script src="/root_dart/tools/testing/dart/test_controller.js"></script>
 </head>
 <body>
 <h1>Simple Web Components Example</h1>
diff --git a/pkg/polymer/lib/src/build/linter.dart b/pkg/polymer/lib/src/build/linter.dart
index 3c5fa20..75374f5 100644
--- a/pkg/polymer/lib/src/build/linter.dart
+++ b/pkg/polymer/lib/src/build/linter.dart
@@ -220,7 +220,6 @@
 class _LinterVisitor extends TreeVisitor {
   TransformLogger _logger;
   bool _inPolymerElement = false;
-  bool _dartJSSeen = false;
   bool _dartTagSeen = false;
   bool _isEntrypoint;
   Map<String, _ElementSummary> _elements;
@@ -369,11 +368,6 @@
       _logger.warning(BOOT_JS_DEPRECATED, span: node.sourceSpan);
       return;
     }
-    if (src == 'packages/browser/dart.js' ||
-        src == 'packages/unittest/test_controller.js') {
-      _dartJSSeen = true;
-      return;
-    }
 
     if (src.endsWith('.dart') && !isDart) {
       _logger.warning('Wrong script type, expected type="application/dart".',
diff --git a/pkg/polymer/lib/src/instance.dart b/pkg/polymer/lib/src/instance.dart
index b9b81bf..c0af66c 100644
--- a/pkg/polymer/lib/src/instance.dart
+++ b/pkg/polymer/lib/src/instance.dart
@@ -745,8 +745,6 @@
    * the bound path at event execution time.
    */
   // from src/instance/event.js#prepareBinding
-  // Dart note: template_binding doesn't have the notion of prepareBinding, so
-  // we implement this by wrapping/overriding getBinding instead.
   // TODO(sorvell): we're patching the syntax while evaluating
   // event bindings. we'll move this to a better spot when that's done
   static PrepareBindingFunction prepareBinding(String path, String name, node,
@@ -765,10 +763,9 @@
       var translated = _eventTranslations[eventName];
       eventName = translated != null ? translated : eventName;
 
-      // TODO(jmesserly): returning a StreamSubscription as the model is quite
-      // strange. package:template_binding doesn't have any cleanup logic to
-      // handle that.
-      return node.on[eventName].listen((event) {
+      // TODO(jmesserly): we need a place to unregister this. See:
+      // https://code.google.com/p/dart/issues/detail?id=15574
+      node.on[eventName].listen((event) {
         var ctrlr = _findController(node);
         if (ctrlr is! Polymer) return;
         var obj = ctrlr;
@@ -781,6 +778,10 @@
             (event as CustomEvent).detail : null;
         ctrlr.dispatchMethod(obj, method, [event, detail, node]);
       });
+
+      // TODO(jmesserly): this return value is bogus. Returning null here causes
+      // the wrong thing to happen in template_binding.
+      return new ObservableBox();
     };
   }
 
@@ -937,7 +938,7 @@
     } else {
       // find the shadow root that contains this element
       var n = this;
-      while (n.parentNode) {
+      while (n.parentNode != null) {
         n = n.parentNode;
       }
       return identical(n, document) ? document.head : n;
diff --git a/pkg/polymer/pubspec.yaml b/pkg/polymer/pubspec.yaml
index ba87001..db8f3ce 100644
--- a/pkg/polymer/pubspec.yaml
+++ b/pkg/polymer/pubspec.yaml
@@ -1,5 +1,5 @@
 name: polymer
-version: 0.9.1+1
+version: 0.9.2+3
 author: Polymer.dart Authors <web-ui-dev@dartlang.org>
 description: >
   Polymer.dart is a new type of library for the web, built on top of Web
@@ -12,12 +12,12 @@
   barback: ">=0.9.0 <0.11.0"
   browser: ">=0.9.0 <0.10.0"
   csslib: ">=0.9.0 <0.10.0"
-  custom_element: ">=0.9.0 <0.10.0"
+  custom_element: ">=0.9.1+1 <0.10.0"
   html5lib: ">=0.9.1 <0.10.0"
   html_import: ">=0.9.0 <0.10.0"
   logging: ">=0.9.0 <0.10.0"
   observe: ">=0.9.1 <0.10.0"
-  path: ">=0.9.0 <0.10.0"
+  path: ">=0.9.0 <2.0.0"
   polymer_expressions: ">=0.9.1 <0.10.0"
   shadow_dom: ">=0.9.1 <0.10.0"
   source_maps: ">=0.9.0 <0.10.0"
diff --git a/pkg/polymer/test/attr_deserialize_test.html b/pkg/polymer/test/attr_deserialize_test.html
index c6592af..db516de 100644
--- a/pkg/polymer/test/attr_deserialize_test.html
+++ b/pkg/polymer/test/attr_deserialize_test.html
@@ -8,7 +8,7 @@
   <!--polymer-test: this comment is needed for test_suite.dart-->
   <head>
     <title>Polymer.dart attribute deserialization test</title>
-    <script src="packages/unittest/test_controller.js"></script>
+    <script src="/root_dart/tools/testing/dart/test_controller.js"></script>
   </head>
   <body>
     <polymer-element name="my-element">
diff --git a/pkg/polymer/test/attr_mustache_test.html b/pkg/polymer/test/attr_mustache_test.html
index 9bc3a77..f41a3d5 100644
--- a/pkg/polymer/test/attr_mustache_test.html
+++ b/pkg/polymer/test/attr_mustache_test.html
@@ -8,7 +8,7 @@
   <head>
   <!--polymer-test: this comment is needed for test_suite.dart-->
     <title>take attributes</title>
-    <script src="packages/unittest/test_controller.js"></script>
+    <script src="/root_dart/tools/testing/dart/test_controller.js"></script>
   </head>
   <body>
     <x-test id="test"></x-test>
diff --git a/pkg/polymer/test/bind_test.html b/pkg/polymer/test/bind_test.html
index 65aa6aa..6cd8640 100644
--- a/pkg/polymer/test/bind_test.html
+++ b/pkg/polymer/test/bind_test.html
@@ -8,7 +8,7 @@
   <!--polymer-test: this comment is needed for test_suite.dart-->
   <head>
     <title>bind simple</title>
-    <script src="packages/unittest/test_controller.js"></script>
+    <script src="/root_dart/tools/testing/dart/test_controller.js"></script>
   </head>
   <body>
     <x-foo></x-foo>
diff --git a/pkg/polymer/test/custom_event_test.dart b/pkg/polymer/test/custom_event_test.dart
index 0a6b197..eef68e0 100644
--- a/pkg/polymer/test/custom_event_test.dart
+++ b/pkg/polymer/test/custom_event_test.dart
@@ -7,6 +7,7 @@
 import 'dart:async';
 import 'dart:html';
 import 'package:polymer/polymer.dart';
+import 'package:template_binding/template_binding.dart' show nodeBind;
 import 'package:unittest/unittest.dart';
 import 'package:unittest/html_config.dart';
 
@@ -50,6 +51,13 @@
   test('custom event', () {
     final testComp = query('test-custom-event');
     final fooBar = testComp.fooBar;
+
+    final binding = nodeBind(fooBar).bindings['on-barbaz'];
+    expect(binding, isNotNull, reason: 'on-barbaz event should be bound');
+
+    expect(binding.model is! StreamSubscription, true,
+        reason: 'event bindings should not be a StreamSubscription');
+
     fooBar.fireFoo(123);
     fooBar.fireBarBaz(42);
     fooBar.fireFoo(777);
diff --git a/pkg/polymer/test/custom_event_test.html b/pkg/polymer/test/custom_event_test.html
index 7fa99b6..a17553a 100644
--- a/pkg/polymer/test/custom_event_test.html
+++ b/pkg/polymer/test/custom_event_test.html
@@ -8,7 +8,7 @@
   <head>
     <!--polymer-test: this comment is needed for test_suite.dart-->
     <title>custom events</title>
-    <script src="packages/unittest/test_controller.js"></script>
+    <script src="/root_dart/tools/testing/dart/test_controller.js"></script>
   </head>
   <body>
 
diff --git a/pkg/polymer/test/entered_view_test.dart b/pkg/polymer/test/entered_view_test.dart
new file mode 100644
index 0000000..c9f7b34
--- /dev/null
+++ b/pkg/polymer/test/entered_view_test.dart
@@ -0,0 +1,54 @@
+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+library polymer.test.entered_view_test;
+
+import 'dart:async';
+import 'dart:html';
+import 'package:polymer/polymer.dart';
+import 'package:unittest/unittest.dart';
+import 'package:unittest/html_config.dart';
+import 'package:unittest/matcher.dart';
+
+@reflectable
+class XOuter extends PolymerElement {
+  @observable bool expand = false;
+
+  XOuter.created() : super.created();
+}
+
+@reflectable
+class XInner extends PolymerElement {
+  int enteredCount = 0;
+
+  XInner.created() : super.created();
+
+  enteredView() {
+    enteredCount++;
+    super.enteredView();
+  }
+}
+
+main() => initPolymer().run(_tests);
+
+_tests() {
+  useHtmlConfiguration();
+  Polymer.register('x-inner', XInner);
+  Polymer.register('x-outer', XOuter);
+
+  setUp(() => Polymer.onReady);
+
+  test('element created properly', () {
+    XOuter outer = query('x-outer');
+    outer.expand = true;
+    return outer.onMutation(outer.shadowRoot).then((_) {
+      // Element upgrade is also using mutation observers. Wait another tick so
+      // it goes before we do.
+      return new Future(() {
+        XInner inner = outer.shadowRoot.query('x-inner');
+        expect(inner.enteredCount, 1, reason: 'enteredView should be called');
+      });
+    });
+  });
+}
diff --git a/pkg/polymer/test/entered_view_test.html b/pkg/polymer/test/entered_view_test.html
new file mode 100644
index 0000000..a4437cf
--- /dev/null
+++ b/pkg/polymer/test/entered_view_test.html
@@ -0,0 +1,36 @@
+<!doctype html>
+<!--
+Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+for details. All rights reserved. Use of this source code is governed by a
+BSD-style license that can be found in the LICENSE file.
+-->
+<html>
+  <!--polymer-test: this comment is needed for test_suite.dart-->
+  <head>
+    <title>enteredView binding test</title>
+    <script src="/root_dart/tools/testing/dart/test_controller.js"></script>
+  </head>
+  <body>
+    This tests that elements inside the shadowRoot are properly upgraded and
+    enteredView is called on them. Essentially this is a Shadow DOM and Custom
+    Elements integration test.
+    <br>
+
+    <polymer-element name="x-inner">
+      <template>x-inner</template>
+    </polymer-element>
+    <polymer-element name="x-outer">
+      <template>
+        <template if="{{expand}}">
+          inner element:
+          <x-inner></x-inner>
+        </template>
+      </template>
+    </polymer-element>
+
+    outer element:
+    <x-outer></x-outer>
+
+    <script type="application/dart" src="entered_view_test.dart"></script>
+  </body>
+</html>
diff --git a/pkg/polymer/test/event_handlers_test.html b/pkg/polymer/test/event_handlers_test.html
index 941c1ed..b09d3e5 100644
--- a/pkg/polymer/test/event_handlers_test.html
+++ b/pkg/polymer/test/event_handlers_test.html
@@ -11,7 +11,7 @@
   -->
   <head>
     <title>event handlers</title>
-    <script src="packages/unittest/test_controller.js"></script>
+    <script src="/root_dart/tools/testing/dart/test_controller.js"></script>
   </head>
   <body>
 
diff --git a/pkg/polymer/test/event_path_declarative_test.html b/pkg/polymer/test/event_path_declarative_test.html
index fefcbd2..94895fe 100644
--- a/pkg/polymer/test/event_path_declarative_test.html
+++ b/pkg/polymer/test/event_path_declarative_test.html
@@ -7,7 +7,7 @@
 <html>
   <!--polymer-test: this comment is needed for test_suite.dart-->
   <head><title>event path declarative test</title>
-    <script src="packages/unittest/test_controller.js"></script>
+    <script src="/root_dart/tools/testing/dart/test_controller.js"></script>
     <!--
     Test ported from:
     https://github.com/Polymer/polymer/blob/7936ff8/test/html/event-path-declarative.html
diff --git a/pkg/polymer/test/event_path_test.html b/pkg/polymer/test/event_path_test.html
index 323f837..1250cf6 100644
--- a/pkg/polymer/test/event_path_test.html
+++ b/pkg/polymer/test/event_path_test.html
@@ -8,7 +8,7 @@
   <!--polymer-test: this comment is needed for test_suite.dart-->
   <head>
     <title>event path</title>
-    <script src="packages/unittest/test_controller.js"></script>
+    <script src="/root_dart/tools/testing/dart/test_controller.js"></script>
     <!--
     Test ported from:
     https://github.com/Polymer/polymer/blob/7936ff8/test/html/event-path.html
diff --git a/pkg/polymer/test/events_test.html b/pkg/polymer/test/events_test.html
index ec87ef3..2e5a952 100644
--- a/pkg/polymer/test/events_test.html
+++ b/pkg/polymer/test/events_test.html
@@ -8,7 +8,7 @@
   <!--polymer-test: this comment is needed for test_suite.dart-->
   <head>
     <title>event path</title>
-    <script src="packages/unittest/test_controller.js"></script>
+    <script src="/root_dart/tools/testing/dart/test_controller.js"></script>
     <!--
     Test ported from:
     https://github.com/Polymer/polymer/blob/7936ff8/test/js/events.js
diff --git a/pkg/polymer/test/instance_attrs_test.html b/pkg/polymer/test/instance_attrs_test.html
index 38e42d4..40dc7ba 100644
--- a/pkg/polymer/test/instance_attrs_test.html
+++ b/pkg/polymer/test/instance_attrs_test.html
@@ -8,7 +8,7 @@
   <!--polymer-test: this comment is needed for test_suite.dart-->
   <head>
     <title>Polymer.dart attribute deserialization test</title>
-    <script src="packages/unittest/test_controller.js"></script>
+    <script src="/root_dart/tools/testing/dart/test_controller.js"></script>
   </head>
   <body>
     <polymer-element name="my-element" foo="123" bar="hi" baz="there">
diff --git a/pkg/polymer/test/nested_binding_test.html b/pkg/polymer/test/nested_binding_test.html
index 3e853cd..39fb241 100644
--- a/pkg/polymer/test/nested_binding_test.html
+++ b/pkg/polymer/test/nested_binding_test.html
@@ -8,7 +8,7 @@
   <!--polymer-test: this comment is needed for test_suite.dart-->
   <head>
     <title>nesting binding test</title>
-    <script src="packages/unittest/test_controller.js"></script>
+    <script src="/root_dart/tools/testing/dart/test_controller.js"></script>
   </head>
   <body>
     <polymer-element name="my-test">
diff --git a/pkg/polymer/test/noscript_test.html b/pkg/polymer/test/noscript_test.html
index dbb84af..0efadb0 100644
--- a/pkg/polymer/test/noscript_test.html
+++ b/pkg/polymer/test/noscript_test.html
@@ -8,7 +8,7 @@
   <head>
   <!--polymer-test: this comment is needed for test_suite.dart-->
     <title>register test</title>
-    <script src="packages/unittest/test_controller.js"></script>
+    <script src="/root_dart/tools/testing/dart/test_controller.js"></script>
   </head>
   <body>
   <polymer-element name="x-a" noscript><template>a</template></polymer-element>
diff --git a/pkg/polymer/test/prop_attr_bind_reflection_test.html b/pkg/polymer/test/prop_attr_bind_reflection_test.html
index c7be8ca..e2a2a06 100644
--- a/pkg/polymer/test/prop_attr_bind_reflection_test.html
+++ b/pkg/polymer/test/prop_attr_bind_reflection_test.html
@@ -3,7 +3,7 @@
   <!--polymer-test: this comment is needed for test_suite.dart-->
   <head>
     <title>property to attribute reflection with bind</title>
-    <script src="packages/unittest/test_controller.js"></script>
+    <script src="/root_dart/tools/testing/dart/test_controller.js"></script>
   </head>
 
   <body>
diff --git a/pkg/polymer/test/prop_attr_reflection_test.html b/pkg/polymer/test/prop_attr_reflection_test.html
index c77d009..95c02b8 100644
--- a/pkg/polymer/test/prop_attr_reflection_test.html
+++ b/pkg/polymer/test/prop_attr_reflection_test.html
@@ -8,7 +8,7 @@
   <head>
   <!--polymer-test: this comment is needed for test_suite.dart-->
     <title>publish attributes</title>
-    <script src="packages/unittest/test_controller.js"></script>
+    <script src="/root_dart/tools/testing/dart/test_controller.js"></script>
   </head>
   <body>
 
diff --git a/pkg/polymer/test/property_change_test.html b/pkg/polymer/test/property_change_test.html
index c418921..01f5db9 100644
--- a/pkg/polymer/test/property_change_test.html
+++ b/pkg/polymer/test/property_change_test.html
@@ -8,7 +8,7 @@
   <!--polymer-test: this comment is needed for test_suite.dart-->
   <head>
     <title>property changes</title>
-    <script src="packages/unittest/test_controller.js"></script>
+    <script src="/root_dart/tools/testing/dart/test_controller.js"></script>
   </head>
   <body>
     <x-test id="test"></x-test>
diff --git a/pkg/polymer/test/publish_attributes_test.html b/pkg/polymer/test/publish_attributes_test.html
index d513e65..9285e47 100644
--- a/pkg/polymer/test/publish_attributes_test.html
+++ b/pkg/polymer/test/publish_attributes_test.html
@@ -8,7 +8,7 @@
   <head>
   <!--polymer-test: this comment is needed for test_suite.dart-->
     <title>publish attributes</title>
-    <script src="packages/unittest/test_controller.js"></script>
+    <script src="/root_dart/tools/testing/dart/test_controller.js"></script>
   </head>
   <body>
 
diff --git a/pkg/polymer/test/publish_inherited_properties_test.html b/pkg/polymer/test/publish_inherited_properties_test.html
index 8fafba7..38b5bf2 100644
--- a/pkg/polymer/test/publish_inherited_properties_test.html
+++ b/pkg/polymer/test/publish_inherited_properties_test.html
@@ -8,7 +8,7 @@
   <head>
   <!--polymer-test: this comment is needed for test_suite.dart-->
     <title>publish inherited properties</title>
-    <script src="packages/unittest/test_controller.js"></script>
+    <script src="/root_dart/tools/testing/dart/test_controller.js"></script>
   </head>
   <body>
 
diff --git a/pkg/polymer/test/register_test.html b/pkg/polymer/test/register_test.html
index 970f9c5..a6085d1 100644
--- a/pkg/polymer/test/register_test.html
+++ b/pkg/polymer/test/register_test.html
@@ -8,7 +8,7 @@
   <head>
   <!--polymer-test: this comment is needed for test_suite.dart-->
     <title>register test</title>
-    <script src="packages/unittest/test_controller.js"></script>
+    <script src="/root_dart/tools/testing/dart/test_controller.js"></script>
   </head>
   <body>
 
diff --git a/pkg/polymer/test/take_attributes_test.html b/pkg/polymer/test/take_attributes_test.html
index e105f6c..8dc5d1e 100644
--- a/pkg/polymer/test/take_attributes_test.html
+++ b/pkg/polymer/test/take_attributes_test.html
@@ -8,7 +8,7 @@
   <head>
   <!--polymer-test: this comment is needed for test_suite.dart-->
     <title>take attributes</title>
-    <script src="packages/unittest/test_controller.js"></script>
+    <script src="/root_dart/tools/testing/dart/test_controller.js"></script>
   </head>
   <body>
 
diff --git a/pkg/polymer/test/template_distribute_dynamic_test.html b/pkg/polymer/test/template_distribute_dynamic_test.html
index 7666ee7..752f7b0 100644
--- a/pkg/polymer/test/template_distribute_dynamic_test.html
+++ b/pkg/polymer/test/template_distribute_dynamic_test.html
@@ -8,7 +8,7 @@
   <!--polymer-test: this comment is needed for test_suite.dart-->
   <head>
     <title>template distribute</title>
-    <script src="packages/unittest/test_controller.js"></script>
+    <script src="/root_dart/tools/testing/dart/test_controller.js"></script>
   </head>
   <body>
 
diff --git a/pkg/polymer/test/unbind_test.html b/pkg/polymer/test/unbind_test.html
index e6b34aa..e251fc6 100644
--- a/pkg/polymer/test/unbind_test.html
+++ b/pkg/polymer/test/unbind_test.html
@@ -8,7 +8,7 @@
   <!--polymer-test: this comment is needed for test_suite.dart-->
   <head>
     <title>unbind</title>
-    <script src="packages/unittest/test_controller.js"></script>
+    <script src="/root_dart/tools/testing/dart/test_controller.js"></script>
   </head>
   <body>
 
diff --git a/pkg/scheduled_test/lib/scheduled_test.dart b/pkg/scheduled_test/lib/scheduled_test.dart
index 807424f2..bf47adb 100644
--- a/pkg/scheduled_test/lib/scheduled_test.dart
+++ b/pkg/scheduled_test/lib/scheduled_test.dart
@@ -174,7 +174,7 @@
 ///
 /// ## Timeouts
 ///
-/// `scheduled_test` has a built-in timeout of 30 seconds (configurable via
+/// `scheduled_test` has a built-in timeout of 5 seconds (configurable via
 /// [Schedule.timeout]). This timeout is aware of the structure of the schedule;
 /// this means that it will reset for each task in a queue, when moving between
 /// queues, or almost any other sort of interaction with [currentSchedule]. As
diff --git a/pkg/scheduled_test/pubspec.yaml b/pkg/scheduled_test/pubspec.yaml
index 285a74c..7fd928e 100644
--- a/pkg/scheduled_test/pubspec.yaml
+++ b/pkg/scheduled_test/pubspec.yaml
@@ -1,5 +1,5 @@
 name: scheduled_test
-version: 0.9.0
+version: 0.9.2
 author: "Dart Team <misc@dartlang.org>"
 homepage: http://www.dartlang.org
 description: >
@@ -11,8 +11,8 @@
 
 dependencies:
   http: ">=0.9.0 <0.10.0"
-  path: ">=0.9.0 <0.10.0"
-  stack_trace: ">=0.9.0 <0.10.0"
+  path: ">=0.9.0 <2.0.0"
+  stack_trace: ">=0.9.1 <0.10.0"
   unittest: ">=0.9.0 <0.10.0"
 environment:
   sdk: ">=0.8.10+6 <2.0.0"
diff --git a/pkg/stack_trace/pubspec.yaml b/pkg/stack_trace/pubspec.yaml
index c71a781..ac41d93 100644
--- a/pkg/stack_trace/pubspec.yaml
+++ b/pkg/stack_trace/pubspec.yaml
@@ -1,5 +1,5 @@
 name: stack_trace
-version: 0.9.0
+version: 0.9.1
 author: "Dart Team <misc@dartlang.org>"
 homepage: http://www.dartlang.org
 description: >
diff --git a/pkg/template_binding/AUTHORS b/pkg/template_binding/AUTHORS
new file mode 100644
index 0000000..0617765
--- /dev/null
+++ b/pkg/template_binding/AUTHORS
@@ -0,0 +1,9 @@
+# Names should be added to this file with this pattern:
+#
+# For individuals:
+#   Name <email address>
+#
+# For organizations:
+#   Organization <fnmatch pattern>
+#
+Google Inc. <*@google.com>
diff --git a/pkg/template_binding/LICENSE b/pkg/template_binding/LICENSE
new file mode 100644
index 0000000..65ee1c1
--- /dev/null
+++ b/pkg/template_binding/LICENSE
@@ -0,0 +1,202 @@
+
+                              Apache License
+                        Version 2.0, January 2004
+                     http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1. Definitions.
+
+   "License" shall mean the terms and conditions for use, reproduction,
+   and distribution as defined by Sections 1 through 9 of this document.
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+
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+   direction or management of such entity, whether by contract or
+   otherwise, or (ii) ownership of fifty percent (50%) or more of the
+   outstanding shares, or (iii) beneficial ownership of such entity.
+
+   "You" (or "Your") shall mean an individual or Legal Entity
+   exercising permissions granted by this License.
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+   "Contributor" shall mean Licensor and any individual or Legal Entity
+   on behalf of whom a Contribution has been received by Licensor and
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+2. Grant of Copyright License. Subject to the terms and conditions of
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+
+4. Redistribution. You may reproduce and distribute copies of the
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+
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+       notices within Derivative Works that You distribute, alongside
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+
+   You may add Your own copyright statement to Your modifications and
+   may provide additional or different license terms and conditions
+   for use, reproduction, or distribution of Your modifications, or
+   for any such Derivative Works as a whole, provided Your use,
+   reproduction, and distribution of the Work otherwise complies with
+   the conditions stated in this License.
+
+5. Submission of Contributions. Unless You explicitly state otherwise,
+   any Contribution intentionally submitted for inclusion in the Work
+   by You to the Licensor shall be under the terms and conditions of
+   this License, without any additional terms or conditions.
+   Notwithstanding the above, nothing herein shall supersede or modify
+   the terms of any separate license agreement you may have executed
+   with Licensor regarding such Contributions.
+
+6. Trademarks. This License does not grant permission to use the trade
+   names, trademarks, service marks, or product names of the Licensor,
+   except as required for reasonable and customary use in describing the
+   origin of the Work and reproducing the content of the NOTICE file.
+
+7. Disclaimer of Warranty. Unless required by applicable law or
+   agreed to in writing, Licensor provides the Work (and each
+   Contributor provides its Contributions) on an "AS IS" BASIS,
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+   PARTICULAR PURPOSE. You are solely responsible for determining the
+   appropriateness of using or redistributing the Work and assume any
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+
+8. Limitation of Liability. In no event and under no legal theory,
+   whether in tort (including negligence), contract, or otherwise,
+   unless required by applicable law (such as deliberate and grossly
+   negligent acts) or agreed to in writing, shall any Contributor be
+   liable to You for damages, including any direct, indirect, special,
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+   Work (including but not limited to damages for loss of goodwill,
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+9. Accepting Warranty or Additional Liability. While redistributing
+   the Work or Derivative Works thereof, You may choose to offer,
+   and charge a fee for, acceptance of support, warranty, indemnity,
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+   on Your own behalf and on Your sole responsibility, not on behalf
+   of any other Contributor, and only if You agree to indemnify,
+   defend, and hold each Contributor harmless for any liability
+   incurred by, or claims asserted against, such Contributor by reason
+   of your accepting any such warranty or additional liability.
+
+END OF TERMS AND CONDITIONS
+
+APPENDIX: How to apply the Apache License to your work.
+
+   To apply the Apache License to your work, attach the following
+   boilerplate notice, with the fields enclosed by brackets "[]"
+   replaced with your own identifying information. (Don't include
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+   comment syntax for the file format. We also recommend that a
+   file or class name and description of purpose be included on the
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+
+Copyright [yyyy] [name of copyright owner]
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
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+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
\ No newline at end of file
diff --git a/pkg/template_binding/PATENTS b/pkg/template_binding/PATENTS
new file mode 100644
index 0000000..e120963
--- /dev/null
+++ b/pkg/template_binding/PATENTS
@@ -0,0 +1,23 @@
+Additional IP Rights Grant (Patents)
+
+"This implementation" means the copyrightable works distributed by
+Google as part of the Polymer project.
+
+Google hereby grants to You a perpetual, worldwide, non-exclusive,
+no-charge, royalty-free, irrevocable (except as stated in this section)
+patent license to make, have made, use, offer to sell, sell, import,
+transfer and otherwise run, modify and propagate the contents of this
+implementation of Polymer, where such license applies only to those
+patent claims, both currently owned or controlled by Google and acquired
+in the future, licensable by Google that are necessarily infringed by
+this implementation of Polymer.  This grant does not include claims
+that would be infringed only as a consequence of further modification of
+this implementation.  If you or your agent or exclusive licensee
+institute or order or agree to the institution of patent litigation
+against any entity (including a cross-claim or counterclaim in a
+lawsuit) alleging that this implementation of Polymer or any code
+incorporated within this implementation of Polymer constitutes
+direct or contributory patent infringement, or inducement of patent
+infringement, then any patent rights granted to you under this License
+for this implementation of Polymer shall terminate as of the date
+such litigation is filed.
diff --git a/pkg/template_binding/lib/src/instance_binding_map.dart b/pkg/template_binding/lib/src/instance_binding_map.dart
index 3868343..71b0c12 100644
--- a/pkg/template_binding/lib/src/instance_binding_map.dart
+++ b/pkg/template_binding/lib/src/instance_binding_map.dart
@@ -6,41 +6,39 @@
 
 class _InstanceBindingMap {
   final List bindings;
-  final List<_InstanceBindingMap> children;
+  final Map<int, _InstanceBindingMap> children;
   final Node templateRef;
-  final bool hasSubTemplate;
+
+  // Workaround for:
+  // https://github.com/Polymer/TemplateBinding/issues/150
+  final int numChildren;
 
   _InstanceBindingMap._(this.bindings, this.children, this.templateRef,
-      this.hasSubTemplate);
-
-  factory _InstanceBindingMap(Node node, BindingDelegate delegate) {
-    var bindings = _getBindings(node, delegate);
-
-    bool hasSubTemplate = false;
-    Node templateRef = null;
-
-    if (isSemanticTemplate(node)) {
-      templateRef = node;
-      hasSubTemplate = true;
-    }
-
-    List children = null;
-    for (var c = node.firstChild, i = 0; c != null; c = c.nextNode, i++) {
-      var childMap = new _InstanceBindingMap(c, delegate);
-      if (childMap == null) continue;
-
-      if (children == null) children = new List(node.nodes.length);
-      children[i] = childMap;
-      if (childMap.hasSubTemplate) {
-        hasSubTemplate = true;
-      }
-    }
-
-    return new _InstanceBindingMap._(bindings, children, templateRef,
-        hasSubTemplate);
-  }
+      this.numChildren);
 }
 
+_InstanceBindingMap _createInstanceBindingMap(Node node,
+    BindingDelegate delegate) {
+
+  var bindings = _getBindings(node, delegate);
+  Node templateRef = null;
+
+  if (isSemanticTemplate(node)) templateRef = node;
+
+  Map children = null;
+  int i = 0;
+  for (var c = node.firstChild; c != null; c = c.nextNode, i++) {
+    var childMap = _createInstanceBindingMap(c, delegate);
+    if (childMap == null) continue;
+
+    if (children == null) children = new HashMap();
+    children[i] = childMap;
+  }
+
+  if (bindings == null && children == null && templateRef == null) return null;
+
+  return new _InstanceBindingMap._(bindings, children, templateRef, i);
+}
 
 void _addMapBindings(Node node, _InstanceBindingMap map, model,
     BindingDelegate delegate, List bound) {
@@ -59,8 +57,15 @@
 
   if (map.children == null) return;
 
-  int i = 0;
-  for (var c = node.firstChild; c != null; c = c.nextNode) {
-    _addMapBindings(c, map.children[i++], model, delegate, bound);
+  // To workaround https://github.com/Polymer/TemplateBinding/issues/150,
+  // we try and detect cases where creating a custom element resulted in extra
+  // children compared to what we expected. We assume these new children are all
+  // at the beginning, because _deepCloneIgnoreTemplateContent creates the
+  // element then appends the template content's children to the end.
+
+  int i = map.numChildren - node.nodes.length;
+  for (var c = node.firstChild; c != null; c = c.nextNode, i++) {
+    if (i < 0) continue;
+    _addMapBindings(c, map.children[i], model, delegate, bound);
   }
 }
diff --git a/pkg/template_binding/lib/src/template.dart b/pkg/template_binding/lib/src/template.dart
index ad35eb8..8df84d1 100644
--- a/pkg/template_binding/lib/src/template.dart
+++ b/pkg/template_binding/lib/src/template.dart
@@ -17,6 +17,8 @@
   DocumentFragment _content;
   bool _templateIsDecorated;
 
+  HtmlDocument _stagingDocument;
+
   var _bindingMap;
 
   TemplateBindExtension._(Element node) : super(node);
@@ -114,13 +116,12 @@
     if (map == null) {
       // TODO(rafaelw): Setup a MutationObserver on content to detect
       // when the instanceMap is invalid.
-      map = new _InstanceBindingMap(content, delegate);
+      map = _createInstanceBindingMap(content, delegate);
       ref._bindingMap = map;
     }
 
-    var instance = map.hasSubTemplate
-        ? _deepCloneIgnoreTemplateContent(content)
-        : content.clone(true);
+    var staging = _getTemplateStagingDocument();
+    var instance = _deepCloneIgnoreTemplateContent(content, staging);
 
     _addMapBindings(instance, map, model, delegate, bound);
     // TODO(rafaelw): We can do this more lazily, but setting a sentinel
@@ -138,12 +139,12 @@
     _ensureSetModelScheduled();
   }
 
-  static Node _deepCloneIgnoreTemplateContent(Node node) {
-    var clone = node.clone(false); // Shallow clone.
+  static Node _deepCloneIgnoreTemplateContent(Node node, stagingDocument) {
+    var clone = stagingDocument.importNode(node, false);
     if (isSemanticTemplate(clone)) return clone;
 
     for (var c = node.firstChild; c != null; c = c.nextNode) {
-      clone.append(_deepCloneIgnoreTemplateContent(c));
+      clone.append(_deepCloneIgnoreTemplateContent(c, stagingDocument));
     }
     return clone;
   }
@@ -241,8 +242,7 @@
      }
 
     if (!isNative) {
-      var doc = _getTemplateContentsOwner(
-          templateElementExt._node.ownerDocument);
+      var doc = _getOrCreateTemplateContentsOwner(templateElementExt._node);
       templateElementExt._content = doc.createDocumentFragment();
     }
 
@@ -260,12 +260,13 @@
   }
 
   static final _contentsOwner = new Expando();
+  static final _ownerStagingDocument = new Expando();
 
   // http://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/templates/index.html#dfn-template-contents-owner
-  static Document _getTemplateContentsOwner(HtmlDocument doc) {
-    if (doc.window == null) {
-      return doc;
-    }
+  static HtmlDocument _getOrCreateTemplateContentsOwner(Element template) {
+    var doc = template.ownerDocument;
+    if (doc.window == null) return doc;
+
     var d = _contentsOwner[doc];
     if (d == null) {
       // TODO(arv): This should either be a Document or HTMLDocument depending
@@ -279,6 +280,19 @@
     return d;
   }
 
+  HtmlDocument _getTemplateStagingDocument() {
+    if (_stagingDocument == null) {
+      var owner = _node.ownerDocument;
+      var doc = _ownerStagingDocument[owner];
+      if (doc == null) {
+        doc = owner.implementation.createHtmlDocument('');
+        _ownerStagingDocument[owner] = doc;
+      }
+      _stagingDocument = doc;
+    }
+    return _stagingDocument;
+  }
+
   // For non-template browsers, the parser will disallow <template> in certain
   // locations, so we allow "attribute templates" which combine the template
   // element with the top-level container node of the content, e.g.
diff --git a/pkg/template_binding/pubspec.yaml b/pkg/template_binding/pubspec.yaml
index 180fe90..873e79d 100644
--- a/pkg/template_binding/pubspec.yaml
+++ b/pkg/template_binding/pubspec.yaml
@@ -1,5 +1,5 @@
 name: template_binding
-version: 0.9.0
+version: 0.9.1
 author: Polymer.dart Team <web-ui-dev@dartlang.org>
 description: >
   Extends the capabilities of the HTML Template Element by enabling it to
@@ -10,7 +10,7 @@
   mutation_observer: ">=0.9.0 <0.10.0"
   observe: ">=0.9.0 <0.10.0"
 dev_dependencies:
-  custom_element: ">=0.9.0 <0.10.0"
+  custom_element: ">=0.9.1 <0.10.0"
   unittest: ">=0.9.0 <0.10.0"
 environment:
-  sdk: ">=0.8.10+6 <2.0.0"
+  sdk: ">=1.0.0 <2.0.0"
diff --git a/pkg/unittest/lib/compact_vm_config.dart b/pkg/unittest/lib/compact_vm_config.dart
index 7724599..69560ac 100644
--- a/pkg/unittest/lib/compact_vm_config.dart
+++ b/pkg/unittest/lib/compact_vm_config.dart
@@ -8,7 +8,7 @@
  * you should only see a couple lines in the terminal. If a test fails, the
  * failure is shown and the progress bar continues to be updated below it.
  */
-library compact_vm_config;
+library unittest.compact_vm_config;
 
 import 'dart:async';
 import 'dart:io';
diff --git a/pkg/unittest/lib/html_config.dart b/pkg/unittest/lib/html_config.dart
index 860ec4f..46403052 100644
--- a/pkg/unittest/lib/html_config.dart
+++ b/pkg/unittest/lib/html_config.dart
@@ -5,7 +5,7 @@
 /**
  * A simple unit test library for running tests in a browser.
  */
-library unittest_html_config;
+library unittest.html_config;
 
 import 'dart:async';
 import 'dart:convert';
diff --git a/pkg/unittest/lib/html_enhanced_config.dart b/pkg/unittest/lib/html_enhanced_config.dart
index ebcf271..92759a8 100644
--- a/pkg/unittest/lib/html_enhanced_config.dart
+++ b/pkg/unittest/lib/html_enhanced_config.dart
@@ -8,7 +8,7 @@
  * Provides enhanced HTML output with collapsible group headers
  * and other at-a-glance information about the test results.
  */
-library unittest_html_enhanced_config;
+library unittest.html_enhanced_config;
 
 import 'dart:async';
 import 'dart:collection' show LinkedHashMap;
diff --git a/pkg/unittest/lib/html_individual_config.dart b/pkg/unittest/lib/html_individual_config.dart
index 1c1d11e..ca140b6 100644
--- a/pkg/unittest/lib/html_individual_config.dart
+++ b/pkg/unittest/lib/html_individual_config.dart
@@ -12,7 +12,7 @@
  * start of your set sequence. Important constraint: your group descriptions
  * MUST NOT contain spaces.
  */
-library unittest_html_individual_config;
+library unittest.html_individual_config;
 
 import 'dart:html';
 import 'unittest.dart' as unittest;
diff --git a/pkg/unittest/lib/interactive_html_config.dart b/pkg/unittest/lib/interactive_html_config.dart
index 16a69a0..baea6e1 100644
--- a/pkg/unittest/lib/interactive_html_config.dart
+++ b/pkg/unittest/lib/interactive_html_config.dart
@@ -12,7 +12,7 @@
  * Note: this unit test configuration will not work with the debugger (the tests
  * are executed in a separate IFrame).
  */
-library unittest_interactive_html_config;
+library unittest.interactive_html_config;
 
 // TODO(gram) - add options for: remove IFrame on done/keep
 // IFrame for failed tests/keep IFrame for all tests.
diff --git a/pkg/unittest/lib/matcher.dart b/pkg/unittest/lib/matcher.dart
index 5cbbed48..f207993 100644
--- a/pkg/unittest/lib/matcher.dart
+++ b/pkg/unittest/lib/matcher.dart
@@ -18,7 +18,7 @@
  * [Unit Testing with Dart]
  * (http://www.dartlang.org/articles/dart-unit-tests/).
  */
-library matcher;
+library unittest.matcher;
 
 import 'dart:async';
 
diff --git a/pkg/unittest/lib/mirror_matchers.dart b/pkg/unittest/lib/mirror_matchers.dart
index 25f2b6d..ad0dfd41 100644
--- a/pkg/unittest/lib/mirror_matchers.dart
+++ b/pkg/unittest/lib/mirror_matchers.dart
@@ -25,7 +25,7 @@
  * [pub]: http://pub.dartlang.org
  * [pkg]: http://pub.dartlang.org/packages/mirror_matchers
  */
-library mirror_matchers;
+library unittest.mirror_matchers;
 
 import 'dart:mirrors';
 
diff --git a/pkg/unittest/lib/mock.dart b/pkg/unittest/lib/mock.dart
index 51f37f8..ad4886c 100644
--- a/pkg/unittest/lib/mock.dart
+++ b/pkg/unittest/lib/mock.dart
@@ -122,7 +122,7 @@
  * [pub]: http://pub.dartlang.org
  */
 
-library mock;
+library unittest.mock;
 
 import 'dart:mirrors';
 import 'dart:collection' show LinkedHashMap;
diff --git a/pkg/unittest/lib/src/configuration.dart b/pkg/unittest/lib/src/configuration.dart
index 2a2ea0c..99cdf9b 100644
--- a/pkg/unittest/lib/src/configuration.dart
+++ b/pkg/unittest/lib/src/configuration.dart
@@ -30,7 +30,7 @@
 
   /// How long a [TestCase] can run before it is considered an error.
   /// A [timeout] value of [:null:] means that the limit is infinite.
-  Duration get timeout => const Duration(minutes: 2);
+  Duration timeout = const Duration(minutes: 2);
 
   /**
    * Called as soon as the unittest framework becomes initialized. This is done
diff --git a/pkg/unittest/lib/src/core_matchers.dart b/pkg/unittest/lib/src/core_matchers.dart
index e120c9e..0806506 100644
--- a/pkg/unittest/lib/src/core_matchers.dart
+++ b/pkg/unittest/lib/src/core_matchers.dart
@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of matcher;
+part of unittest.matcher;
 
 /**
  * Returns a matcher that matches empty strings, maps or iterables
diff --git a/pkg/unittest/lib/src/description.dart b/pkg/unittest/lib/src/description.dart
index 6c43077..de3de87 100644
--- a/pkg/unittest/lib/src/description.dart
+++ b/pkg/unittest/lib/src/description.dart
@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of matcher;
+part of unittest.matcher;
 
 /**
  * The default implementation of IDescription. This should rarely need
diff --git a/pkg/unittest/lib/src/expect.dart b/pkg/unittest/lib/src/expect.dart
index 76151c0..3309efe 100644
--- a/pkg/unittest/lib/src/expect.dart
+++ b/pkg/unittest/lib/src/expect.dart
@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of matcher;
+part of unittest.matcher;
 
 /** The objects thrown by the default failure handler. */
 class TestFailure extends Error {
diff --git a/pkg/unittest/lib/src/future_matchers.dart b/pkg/unittest/lib/src/future_matchers.dart
index c9e2742e..c1156ed5 100644
--- a/pkg/unittest/lib/src/future_matchers.dart
+++ b/pkg/unittest/lib/src/future_matchers.dart
@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of matcher;
+part of unittest.matcher;
 
 /**
  * Matches a [Future] that completes successfully with a value. Note that this
diff --git a/pkg/unittest/lib/src/interfaces.dart b/pkg/unittest/lib/src/interfaces.dart
index 8a66a84..c3af072 100644
--- a/pkg/unittest/lib/src/interfaces.dart
+++ b/pkg/unittest/lib/src/interfaces.dart
@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of matcher;
+part of unittest.matcher;
 
 // To decouple the reporting of errors, and allow for extensibility of
 // matchers, we make use of some interfaces.
diff --git a/pkg/unittest/lib/src/iterable_matchers.dart b/pkg/unittest/lib/src/iterable_matchers.dart
index dda2989..ab7827f 100644
--- a/pkg/unittest/lib/src/iterable_matchers.dart
+++ b/pkg/unittest/lib/src/iterable_matchers.dart
@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of matcher;
+part of unittest.matcher;
 
 /**
  * Returns a matcher which matches [Iterable]s in which all elements
diff --git a/pkg/unittest/lib/src/map_matchers.dart b/pkg/unittest/lib/src/map_matchers.dart
index 033e906..76b6b97 100644
--- a/pkg/unittest/lib/src/map_matchers.dart
+++ b/pkg/unittest/lib/src/map_matchers.dart
@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of matcher;
+part of unittest.matcher;
 
 /**
  * Returns a matcher which matches maps containing the given [value].
diff --git a/pkg/unittest/lib/src/numeric_matchers.dart b/pkg/unittest/lib/src/numeric_matchers.dart
index 2a725ff..4c8cd93 100644
--- a/pkg/unittest/lib/src/numeric_matchers.dart
+++ b/pkg/unittest/lib/src/numeric_matchers.dart
@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of matcher;
+part of unittest.matcher;
 
 /**
  * Returns a matcher which matches if the match argument is greater
diff --git a/pkg/unittest/lib/src/operator_matchers.dart b/pkg/unittest/lib/src/operator_matchers.dart
index 6c93cee..432b5d3 100644
--- a/pkg/unittest/lib/src/operator_matchers.dart
+++ b/pkg/unittest/lib/src/operator_matchers.dart
@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of matcher;
+part of unittest.matcher;
 
 /**
  * This returns a matcher that inverts [matcher] to its logical negation.
diff --git a/pkg/unittest/lib/src/pretty_print.dart b/pkg/unittest/lib/src/pretty_print.dart
index 1608e10..14a0bb1 100644
--- a/pkg/unittest/lib/src/pretty_print.dart
+++ b/pkg/unittest/lib/src/pretty_print.dart
@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-library pretty_print;
+library unittest.pretty_print;
 
 import 'utils.dart';
 
diff --git a/pkg/unittest/lib/src/simple_configuration.dart b/pkg/unittest/lib/src/simple_configuration.dart
index 78c303e..1056ad3 100644
--- a/pkg/unittest/lib/src/simple_configuration.dart
+++ b/pkg/unittest/lib/src/simple_configuration.dart
@@ -52,10 +52,6 @@
   // we do with this List.
   final _testLogBuffer = <Pair<String, StackTrace>>[];
 
-  /// How long a [TestCase] can run before it is considered an error.
-  /// A [timeout] value of [:null:] means that the limit is infinite.
-  Duration timeout = const Duration(minutes: 2);
-
   /**
    * The constructor sets up a failure handler for [expect] that redirects
    * [expect] failures to [onExpectFailure].
diff --git a/pkg/unittest/lib/src/string_matchers.dart b/pkg/unittest/lib/src/string_matchers.dart
index f5e32ff..36e7e1e 100644
--- a/pkg/unittest/lib/src/string_matchers.dart
+++ b/pkg/unittest/lib/src/string_matchers.dart
@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of matcher;
+part of unittest.matcher;
 
 /**
  * Returns a matcher which matches if the match argument is a string and
diff --git a/pkg/unittest/lib/src/utils.dart b/pkg/unittest/lib/src/utils.dart
index e10c597..380a119 100644
--- a/pkg/unittest/lib/src/utils.dart
+++ b/pkg/unittest/lib/src/utils.dart
@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-library utils;
+library unittest.utils;
 
 /**
  * Returns the name of the type of [x], or "Unknown" if the type name can't be
diff --git a/pkg/unittest/lib/vm_config.dart b/pkg/unittest/lib/vm_config.dart
index e37cf72..685518e 100644
--- a/pkg/unittest/lib/vm_config.dart
+++ b/pkg/unittest/lib/vm_config.dart
@@ -5,7 +5,7 @@
 /**
  * A simple unit test library for running tests on the VM.
  */
-library unittest_vm_config;
+library unittest.vm_config;
 
 import 'dart:async';
 import 'dart:io';
diff --git a/pkg/unittest/pubspec.yaml b/pkg/unittest/pubspec.yaml
index ebc4d7b..dd67528 100644
--- a/pkg/unittest/pubspec.yaml
+++ b/pkg/unittest/pubspec.yaml
@@ -1,5 +1,5 @@
 name: unittest
-version: 0.9.0
+version: 0.9.1
 author: Dart Team <misc@dartlang.org>
 description: A library for writing dart unit tests.
 homepage: http://www.dartlang.org
diff --git a/pkg/watcher/pubspec.yaml b/pkg/watcher/pubspec.yaml
index 93d8eb4..a967294 100644
--- a/pkg/watcher/pubspec.yaml
+++ b/pkg/watcher/pubspec.yaml
@@ -1,5 +1,5 @@
 name: watcher
-version: 0.9.0
+version: 0.9.2
 author: "Dart Team <misc@dartlang.org>"
 homepage: http://www.dartlang.org
 description: >
@@ -8,8 +8,8 @@
   modified.
 dependencies:
   crypto: ">=0.9.0 <0.10.0"
-  path: ">=0.9.0 <0.10.0"
-  stack_trace: ">=0.9.0 <0.10.0"
+  path: ">=0.9.0 <2.0.0"
+  stack_trace: ">=0.9.1 <0.10.0"
 dev_dependencies:
   scheduled_test: ">=0.9.0 <0.10.0"
   unittest: ">=0.9.0 <0.10.0"
diff --git a/runtime/bin/dbg_message.cc b/runtime/bin/dbg_message.cc
index d9df5b3..5912c31 100644
--- a/runtime/bin/dbg_message.cc
+++ b/runtime/bin/dbg_message.cc
@@ -1066,11 +1066,15 @@
 }
 
 
-void DbgMsgQueue::SendBreakpointEvent(const Dart_CodeLocation& location) {
+void DbgMsgQueue::SendBreakpointEvent(intptr_t bp_id,
+                                      const Dart_CodeLocation& location) {
   dart::TextBuffer msg(128);
   msg.Printf("{ \"event\": \"paused\", \"params\": { ");
   msg.Printf("\"reason\": \"breakpoint\", ");
   msg.Printf("\"isolateId\": %" Pd64 "", isolate_id_);
+  if (bp_id != ILLEGAL_BREAKPOINT_ID) {
+    msg.Printf(",\"breakpointId\": %" Pd "", bp_id);
+  }
   if (!Dart_IsNull(location.script_url)) {
     ASSERT(Dart_IsString(location.script_url));
     msg.Printf(",\"location\": { \"url\":");
@@ -1281,13 +1285,14 @@
 
 
 void DbgMsgQueueList::PausedEventHandler(Dart_IsolateId isolate_id,
+                                         intptr_t bp_id,
                                          const Dart_CodeLocation& loc) {
   DebuggerConnectionHandler::WaitForConnection();
   Dart_EnterScope();
   DbgMsgQueue* msg_queue = GetIsolateMsgQueue(isolate_id);
   ASSERT(msg_queue != NULL);
   msg_queue->SendQueuedMsgs();
-  msg_queue->SendBreakpointEvent(loc);
+  msg_queue->SendBreakpointEvent(bp_id, loc);
   msg_queue->HandleMessages();
   Dart_ExitScope();
 }
diff --git a/runtime/bin/dbg_message.h b/runtime/bin/dbg_message.h
index 5386318..79551ee 100644
--- a/runtime/bin/dbg_message.h
+++ b/runtime/bin/dbg_message.h
@@ -174,7 +174,7 @@
   void SendQueuedMsgs();
 
   // Send breakpoint event message over to the debugger.
-  void SendBreakpointEvent(const Dart_CodeLocation& location);
+  void SendBreakpointEvent(intptr_t bp_id, const Dart_CodeLocation& location);
 
   // Send Exception event message over to the debugger.
   void SendExceptionEvent(Dart_Handle exception, Dart_StackTrace trace);
@@ -243,6 +243,7 @@
                                  intptr_t bp_id,
                                  const Dart_CodeLocation& location);
   static void PausedEventHandler(Dart_IsolateId isolate_id,
+                                 intptr_t bp_id,
                                  const Dart_CodeLocation& loc);
   static void ExceptionThrownHandler(Dart_IsolateId isolate_id,
                                      Dart_Handle exception,
diff --git a/runtime/bin/eventhandler_win.cc b/runtime/bin/eventhandler_win.cc
index 334d496..7b5d66a 100644
--- a/runtime/bin/eventhandler_win.cc
+++ b/runtime/bin/eventhandler_win.cc
@@ -50,11 +50,24 @@
 }
 
 
+OverlappedBuffer* OverlappedBuffer::AllocateRecvFromBuffer(int buffer_size) {
+  // For calling recvfrom additional buffer space is needed for the source
+  // address information.
+  buffer_size += sizeof(socklen_t) + sizeof(struct sockaddr_storage);
+  return AllocateBuffer(buffer_size, kRecvFrom);
+}
+
+
 OverlappedBuffer* OverlappedBuffer::AllocateWriteBuffer(int buffer_size) {
   return AllocateBuffer(buffer_size, kWrite);
 }
 
 
+OverlappedBuffer* OverlappedBuffer::AllocateSendToBuffer(int buffer_size) {
+  return AllocateBuffer(buffer_size, kSendTo);
+}
+
+
 OverlappedBuffer* OverlappedBuffer::AllocateDisconnectBuffer() {
   return AllocateBuffer(0, kDisconnect);
 }
@@ -91,7 +104,7 @@
 
 
 int OverlappedBuffer::GetRemainingLength() {
-  ASSERT(operation_ == kRead);
+  ASSERT(operation_ == kRead || operation_ == kRecvFrom);
   return data_length_ - index_;
 }
 
@@ -199,6 +212,11 @@
 }
 
 
+void Handle::RecvFromComplete(OverlappedBuffer* buffer) {
+  ReadComplete(buffer);
+}
+
+
 void Handle::WriteComplete(OverlappedBuffer* buffer) {
   ScopedLock lock(this);
   // Currently only one outstanding write at the time.
@@ -279,6 +297,11 @@
 }
 
 
+bool Handle::IssueRecvFrom() {
+  return false;
+}
+
+
 bool Handle::IssueWrite() {
   ScopedLock lock(this);
   ASSERT(type_ != kListenSocket);
@@ -303,6 +326,11 @@
 }
 
 
+bool Handle::IssueSendTo(struct sockaddr* sa, socklen_t sa_len) {
+  return false;
+}
+
+
 void Handle::HandleIssueError() {
   DWORD error = GetLastError();
   if (error == ERROR_BROKEN_PIPE) {
@@ -543,6 +571,27 @@
 }
 
 
+int Handle::RecvFrom(
+    void* buffer, int num_bytes, struct sockaddr* sa, socklen_t sa_len) {
+  ScopedLock lock(this);
+  if (data_ready_ == NULL) return 0;
+  num_bytes = data_ready_->Read(buffer, num_bytes);
+  if (data_ready_->from()->sa_family == AF_INET) {
+    ASSERT(sa_len >= sizeof(struct sockaddr_in));
+    memmove(sa, data_ready_->from(), sizeof(struct sockaddr_in));
+  } else {
+    ASSERT(data_ready_->from()->sa_family == AF_INET6);
+    ASSERT(sa_len >= sizeof(struct sockaddr_in6));
+    memmove(sa, data_ready_->from(), sizeof(struct sockaddr_in6));
+  }
+  // Always dispose of the buffer, as UDP messages must be read in their
+  // entirety to match how recvfrom works in a socket.
+  OverlappedBuffer::DisposeBuffer(data_ready_);
+  data_ready_ = NULL;
+  return num_bytes;
+}
+
+
 int Handle::Write(const void* buffer, int num_bytes) {
   ScopedLock lock(this);
   if (pending_write_ != NULL) return 0;
@@ -556,6 +605,20 @@
 }
 
 
+int Handle::SendTo(
+    const void* buffer, int num_bytes, struct sockaddr* sa, socklen_t sa_len) {
+  ScopedLock lock(this);
+  if (pending_write_ != NULL) return 0;
+  if (num_bytes > kBufferSize) num_bytes = kBufferSize;
+  ASSERT(SupportsOverlappedIO());
+  if (completion_port_ == INVALID_HANDLE_VALUE) return 0;
+  pending_write_ = OverlappedBuffer::AllocateSendToBuffer(num_bytes);
+  pending_write_->Write(buffer, num_bytes);
+  if (!IssueSendTo(sa, sa_len)) return -1;
+  return num_bytes;
+}
+
+
 static void WriteFileThread(uword args) {
   StdHandle* handle = reinterpret_cast<StdHandle*>(args);
   handle->RunWriteLoop();
@@ -707,7 +770,9 @@
   ASSERT(completion_port_ != INVALID_HANDLE_VALUE);
   ASSERT(pending_read_ == NULL);
 
-  OverlappedBuffer* buffer = OverlappedBuffer::AllocateReadBuffer(1024);
+  // TODO(sgjesse): Use a MTU value here. Only the loopback adapter can
+  // handle 64k datagrams.
+  OverlappedBuffer* buffer = OverlappedBuffer::AllocateReadBuffer(65536);
 
   DWORD flags;
   flags = 0;
@@ -791,6 +856,85 @@
 }
 
 
+bool DatagramSocket::IssueSendTo(struct sockaddr* sa, socklen_t sa_len) {
+  ScopedLock lock(this);
+  ASSERT(completion_port_ != INVALID_HANDLE_VALUE);
+  ASSERT(pending_write_ != NULL);
+  ASSERT(pending_write_->operation() == OverlappedBuffer::kSendTo);
+
+  int rc = WSASendTo(socket(),
+                     pending_write_->GetWASBUF(),
+                     1,
+                     NULL,
+                     0,
+                     sa,
+                     sa_len,
+                     pending_write_->GetCleanOverlapped(),
+                     NULL);
+  if (rc == NO_ERROR || WSAGetLastError() == WSA_IO_PENDING) {
+    return true;
+  }
+  OverlappedBuffer::DisposeBuffer(pending_write_);
+  pending_write_ = NULL;
+  HandleIssueError();
+  return false;
+}
+
+
+bool DatagramSocket::IssueRecvFrom() {
+  ScopedLock lock(this);
+  ASSERT(completion_port_ != INVALID_HANDLE_VALUE);
+  ASSERT(pending_read_ == NULL);
+
+  OverlappedBuffer* buffer = OverlappedBuffer::AllocateRecvFromBuffer(1024);
+
+  DWORD flags;
+  flags = 0;
+  int len;
+  int rc = WSARecvFrom(socket(),
+                       buffer->GetWASBUF(),
+                       1,
+                       NULL,
+                       &flags,
+                       buffer->from(),
+                       buffer->from_len_addr(),
+                       buffer->GetCleanOverlapped(),
+                       NULL);
+  if (rc == NO_ERROR || WSAGetLastError() == WSA_IO_PENDING) {
+    pending_read_ = buffer;
+    return true;
+  }
+  OverlappedBuffer::DisposeBuffer(buffer);
+  pending_read_ = NULL;
+  HandleIssueError();
+  return false;
+}
+
+
+void DatagramSocket::EnsureInitialized(
+    EventHandlerImplementation* event_handler) {
+  ScopedLock lock(this);
+  if (completion_port_ == INVALID_HANDLE_VALUE) {
+    ASSERT(event_handler_ == NULL);
+    event_handler_ = event_handler;
+    CreateCompletionPort(event_handler_->completion_port());
+  }
+}
+
+
+bool DatagramSocket::IsClosed() {
+  return IsClosing() && !HasPendingRead() && !HasPendingWrite();
+}
+
+
+void DatagramSocket::DoClose() {
+  // Just close the socket. This will cause any queued requests to be aborted.
+  closesocket(socket());
+  MarkClosedRead();
+  MarkClosedWrite();
+}
+
+
 static void DeleteIfClosed(Handle* handle) {
   if (handle->IsClosed()) {
     Dart_Port port = handle->port();
@@ -858,7 +1002,11 @@
               int event_mask = (1 << kCloseEvent);
               DartUtils::PostInt32(handle->port(), event_mask);
             } else if (!handle->HasPendingRead()) {
-              handle->IssueRead();
+              if (handle->is_datagram_socket()) {
+                handle->IssueRecvFrom();
+              } else {
+                handle->IssueRead();
+              }
             }
           }
 
@@ -953,6 +1101,23 @@
 }
 
 
+void EventHandlerImplementation::HandleRecvFrom(Handle* handle,
+                                                int bytes,
+                                                OverlappedBuffer* buffer) {
+  ASSERT(handle->is_datagram_socket());
+  buffer->set_data_length(bytes);
+  handle->ReadComplete(buffer);
+  if (!handle->IsClosing()) {
+    int event_mask = 1 << kInEvent;
+    if ((handle->mask() & event_mask) != 0) {
+      DartUtils::PostInt32(handle->port(), event_mask);
+    }
+  }
+
+  DeleteIfClosed(handle);
+}
+
+
 void EventHandlerImplementation::HandleWrite(Handle* handle,
                                              int bytes,
                                              OverlappedBuffer* buffer) {
@@ -1004,7 +1169,13 @@
       HandleRead(handle, bytes, buffer);
       break;
     }
-    case OverlappedBuffer::kWrite: {
+    case OverlappedBuffer::kRecvFrom: {
+      Handle* handle = reinterpret_cast<Handle*>(key);
+      HandleRecvFrom(handle, bytes, buffer);
+      break;
+    }
+    case OverlappedBuffer::kWrite:
+    case OverlappedBuffer::kSendTo: {
       Handle* handle = reinterpret_cast<Handle*>(key);
       HandleWrite(handle, bytes, buffer);
       break;
diff --git a/runtime/bin/eventhandler_win.h b/runtime/bin/eventhandler_win.h
index 43562cd..90e505a 100644
--- a/runtime/bin/eventhandler_win.h
+++ b/runtime/bin/eventhandler_win.h
@@ -10,6 +10,7 @@
 #endif
 
 #include <winsock2.h>
+#include <ws2tcpip.h>
 #include <mswsock.h>
 
 #include "bin/builtin.h"
@@ -40,11 +41,13 @@
 // socket for the client.
 class OverlappedBuffer {
  public:
-  enum Operation { kAccept, kRead, kWrite, kDisconnect };
+  enum Operation { kAccept, kRead, kRecvFrom, kWrite, kSendTo, kDisconnect };
 
   static OverlappedBuffer* AllocateAcceptBuffer(int buffer_size);
   static OverlappedBuffer* AllocateReadBuffer(int buffer_size);
+  static OverlappedBuffer* AllocateRecvFromBuffer(int buffer_size);
   static OverlappedBuffer* AllocateWriteBuffer(int buffer_size);
+  static OverlappedBuffer* AllocateSendToBuffer(int buffer_size);
   static OverlappedBuffer* AllocateDisconnectBuffer();
   static void DisposeBuffer(OverlappedBuffer* buffer);
 
@@ -71,6 +74,9 @@
   SOCKET client() { return client_; }
   char* GetBufferStart() { return reinterpret_cast<char*>(&buffer_data_); }
   int GetBufferSize() { return buflen_; }
+  struct sockaddr* from() { return from_; }
+  socklen_t* from_len_addr() { return from_len_addr_; }
+  socklen_t from_len() { return from_ == NULL ? 0 : *from_len_addr_; }
 
   // Returns the address of the OVERLAPPED structure with all fields
   // initialized to zero.
@@ -92,6 +98,21 @@
   OverlappedBuffer(int buffer_size, Operation operation)
       : operation_(operation), buflen_(buffer_size) {
     memset(GetBufferStart(), 0, GetBufferSize());
+    if (operation == kRecvFrom) {
+      // Reserve part of the buffer for the length of source sockaddr
+      // and source sockaddr.
+      const int kAdditionalSize =
+          sizeof(struct sockaddr_storage) + sizeof(socklen_t);
+      ASSERT(buflen_ > kAdditionalSize);
+      buflen_ -= kAdditionalSize;
+      from_len_addr_ = reinterpret_cast<socklen_t*>(
+          GetBufferStart() + GetBufferSize());
+      *from_len_addr_ = sizeof(struct sockaddr_storage);
+      from_ = reinterpret_cast<struct sockaddr*>(from_len_addr_ + 1);
+    } else {
+      from_len_addr_ = NULL;
+      from_ = NULL;
+    }
     index_ = 0;
     data_length_ = 0;
     if (operation_ == kAccept) {
@@ -107,6 +128,9 @@
     free(buffer);
   }
 
+  // Allocate an overlapped buffer for thse specified amount of data and
+  // operation. Some operations need additional buffer space, which is
+  // handled by this method.
   static OverlappedBuffer* AllocateBuffer(int buffer_size,
                                           Operation operation);
 
@@ -120,6 +144,11 @@
 
   WSABUF wbuf_;  // Structure for passing buffer to WSA functions.
 
+  // For the recvfrom operation additional storace is allocated for the
+  // source sockaddr.
+  socklen_t* from_len_addr_;  // Pointer to source sockaddr size storage.
+  struct sockaddr* from_;  // Pointer to source sockaddr storage.
+
   // Buffer for recv/send/AcceptEx. This must be at the end of the
   // object as the object is allocated larger than it's definition
   // indicate to extend this array.
@@ -136,7 +165,8 @@
     kStd,
     kDirectoryWatch,
     kClientSocket,
-    kListenSocket
+    kListenSocket,
+    kDatagramSocket
   };
 
   class ScopedLock {
@@ -158,14 +188,23 @@
   // Socket interface exposing normal socket operations.
   int Available();
   int Read(void* buffer, int num_bytes);
+  int RecvFrom(
+      void* buffer, int num_bytes, struct sockaddr* sa, socklen_t addr_len);
   virtual int Write(const void* buffer, int num_bytes);
+  virtual int SendTo(const void* buffer,
+                     int num_bytes,
+                     struct sockaddr* sa,
+                     socklen_t sa_len);
 
   // Internal interface used by the event handler.
   virtual bool IssueRead();
+  virtual bool IssueRecvFrom();
   virtual bool IssueWrite();
+  virtual bool IssueSendTo(struct sockaddr* sa, socklen_t sa_len);
   bool HasPendingRead();
   bool HasPendingWrite();
   void ReadComplete(OverlappedBuffer* buffer);
+  void RecvFromComplete(OverlappedBuffer* buffer);
   void WriteComplete(OverlappedBuffer* buffer);
 
   bool IsClosing() { return (flags_ & (1 << kClosing)) != 0; }
@@ -199,9 +238,12 @@
   }
   Type type() { return type_; }
   bool is_file() { return type_ == kFile; }
-  bool is_socket() { return type_ == kListenSocket || type_ == kClientSocket; }
+  bool is_socket() { return type_ == kListenSocket ||
+                            type_ == kClientSocket ||
+                            type_ == kDatagramSocket; }
   bool is_listen_socket() { return type_ == kListenSocket; }
   bool is_client_socket() { return type_ == kClientSocket; }
+  bool is_datagram_socket() { return type_ == kDatagramSocket; }
   void set_mask(intptr_t mask) { mask_ = mask; }
   intptr_t mask() { return mask_; }
 
@@ -416,6 +458,27 @@
 };
 
 
+class DatagramSocket : public SocketHandle {
+ public:
+  explicit DatagramSocket(SOCKET s) : SocketHandle(s) {
+    type_ = kDatagramSocket;
+  }
+
+  virtual ~DatagramSocket() {
+    // Don't delete this object until all pending requests have been handled.
+    ASSERT(!HasPendingRead());
+    ASSERT(!HasPendingWrite());
+  };
+
+  // Internal interface used by the event handler.
+  virtual bool IssueRecvFrom();
+  virtual bool IssueSendTo(sockaddr* sa, socklen_t sa_len);
+
+  virtual void EnsureInitialized(EventHandlerImplementation* event_handler);
+  virtual void DoClose();
+  virtual bool IsClosed();
+};
+
 // Event handler.
 class EventHandlerImplementation {
  public:
@@ -435,6 +498,7 @@
   void HandleClosed(Handle* handle);
   void HandleError(Handle* handle);
   void HandleRead(Handle* handle, int bytes, OverlappedBuffer* buffer);
+  void HandleRecvFrom(Handle* handle, int bytes, OverlappedBuffer* buffer);
   void HandleWrite(Handle* handle, int bytes, OverlappedBuffer* buffer);
   void HandleDisconnect(ClientSocket* client_socket,
                         int bytes,
diff --git a/runtime/bin/io_natives.cc b/runtime/bin/io_natives.cc
index 8a182d8..480ce68 100644
--- a/runtime/bin/io_natives.cc
+++ b/runtime/bin/io_natives.cc
@@ -59,19 +59,27 @@
   V(ServerSocket_CreateBindListen, 5)                                          \
   V(ServerSocket_Accept, 2)                                                    \
   V(Socket_CreateConnect, 3)                                                   \
+  V(Socket_CreateBindDatagram, 4)                                              \
   V(Socket_Available, 1)                                                       \
   V(Socket_Read, 2)                                                            \
+  V(Socket_RecvFrom, 1)                                                        \
   V(Socket_WriteList, 4)                                                       \
+  V(Socket_SendTo, 6)                                                          \
   V(Socket_GetPort, 1)                                                         \
   V(Socket_GetRemotePeer, 1)                                                   \
   V(Socket_GetError, 1)                                                        \
   V(Socket_GetStdioHandle, 2)                                                  \
   V(Socket_GetType, 1)                                                         \
-  V(Socket_SetOption, 3)                                                       \
+  V(Socket_GetOption, 3)                                                       \
+  V(Socket_SetOption, 4)                                                       \
+  V(Socket_JoinMulticast, 4)                                                   \
+  V(Socket_LeaveMulticast, 4)                                                  \
   V(Socket_SetSocketId, 2)                                                     \
   V(Stdin_ReadByte, 1)                                                         \
-  V(Stdin_SetEchoMode, 2)                                                      \
-  V(Stdin_SetLineMode, 2)                                                      \
+  V(Stdin_GetEchoMode, 0)                                                      \
+  V(Stdin_SetEchoMode, 1)                                                      \
+  V(Stdin_GetLineMode, 0)                                                      \
+  V(Stdin_SetLineMode, 1)                                                      \
   V(StringToSystemEncoding, 1)                                                 \
   V(SystemEncodingToString, 1)
 
diff --git a/runtime/bin/isolate_data.h b/runtime/bin/isolate_data.h
index 8a977be..3dc0ba2f 100644
--- a/runtime/bin/isolate_data.h
+++ b/runtime/bin/isolate_data.h
@@ -20,13 +20,16 @@
 // when the isolate shuts down.
 class IsolateData {
  public:
-  explicit IsolateData(const char* url) : script_url(strdup(url)) {
+  explicit IsolateData(const char* url)
+      : script_url(strdup(url)), udp_receive_buffer(NULL) {
   }
   ~IsolateData() {
     free(script_url);
+    free(udp_receive_buffer);
   }
 
   char* script_url;
+  uint8_t* udp_receive_buffer;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(IsolateData);
diff --git a/runtime/bin/net/nss.gyp b/runtime/bin/net/nss.gyp
index 9cdface..dfed0d4 100644
--- a/runtime/bin/net/nss.gyp
+++ b/runtime/bin/net/nss.gyp
@@ -356,6 +356,8 @@
             'HAVE_LCHOWN=1',
             'HAVE_STRERROR=1',
             'HAVE_DLADDR=1',
+            'HAVE_SETPRIORITY=1',
+            'HAVE_SYSCALL=1',
             '_REENTRANT=1',
              'FORCE_PR_LOG',
             '_PR_PTHREADS',
diff --git a/runtime/bin/socket.cc b/runtime/bin/socket.cc
index 046bd18..2d1b8bc 100644
--- a/runtime/bin/socket.cc
+++ b/runtime/bin/socket.cc
@@ -3,6 +3,7 @@
 // BSD-style license that can be found in the LICENSE file.
 
 #include "bin/io_buffer.h"
+#include "bin/isolate_data.h"
 #include "bin/socket.h"
 #include "bin/dartutils.h"
 #include "bin/thread.h"
@@ -33,6 +34,9 @@
   Dart_Handle result = Dart_TypedDataAcquireData(
       obj, &data_type, reinterpret_cast<void**>(&data), &len);
   if (Dart_IsError(result)) Dart_PropagateError(result);
+  if (data_type != Dart_TypedData_kUint8) {
+    Dart_PropagateError(Dart_NewApiError("Unexpected type for socket address"));
+  }
   memmove(reinterpret_cast<void *>(addr), data, len);
   Dart_TypedDataReleaseData(obj);
 }
@@ -103,10 +107,8 @@
 void FUNCTION_NAME(Socket_CreateConnect)(Dart_NativeArguments args) {
   RawAddr addr;
   GetSockAddr(Dart_GetNativeArgument(args, 1), &addr);
-  int64_t port = DartUtils::GetInt64ValueCheckRange(
-      Dart_GetNativeArgument(args, 2),
-      0,
-      65535);
+  Dart_Handle port_arg = Dart_GetNativeArgument(args, 2);
+  int64_t port = DartUtils::GetInt64ValueCheckRange(port_arg, 0, 65535);
   intptr_t socket = Socket::CreateConnect(addr, port);
   OSError error;
   if (socket >= 0) {
@@ -118,6 +120,23 @@
 }
 
 
+void FUNCTION_NAME(Socket_CreateBindDatagram)(Dart_NativeArguments args) {
+  RawAddr addr;
+  GetSockAddr(Dart_GetNativeArgument(args, 1), &addr);
+  Dart_Handle port_arg = Dart_GetNativeArgument(args, 2);
+  int64_t port = DartUtils::GetInt64ValueCheckRange(port_arg, 0, 65535);
+  bool reuse_addr = DartUtils::GetBooleanValue(Dart_GetNativeArgument(args, 3));
+  intptr_t socket = Socket::CreateBindDatagram(&addr, port, reuse_addr);
+  if (socket >= 0) {
+    Socket::SetSocketIdNativeField(Dart_GetNativeArgument(args, 0), socket);
+    Dart_SetReturnValue(args, Dart_True());
+  } else {
+    OSError error;
+    Dart_SetReturnValue(args, DartUtils::NewDartOSError(&error));
+  }
+}
+
+
 void FUNCTION_NAME(Socket_Available)(Dart_NativeArguments args) {
   intptr_t socket =
       Socket::GetSocketIdNativeField(Dart_GetNativeArgument(args, 0));
@@ -182,6 +201,79 @@
 }
 
 
+void FUNCTION_NAME(Socket_RecvFrom)(Dart_NativeArguments args) {
+  intptr_t socket =
+      Socket::GetSocketIdNativeField(Dart_GetNativeArgument(args, 0));
+
+  // TODO(sgjesse): Use a MTU value here. Only the loopback adapter can
+  // handle 64k datagrams.
+  IsolateData* isolate_data =
+      reinterpret_cast<IsolateData*>(Dart_CurrentIsolateData());
+  if (isolate_data->udp_receive_buffer == NULL) {
+    isolate_data->udp_receive_buffer =
+        reinterpret_cast<uint8_t*>(malloc(65536));
+  }
+  RawAddr addr;
+  intptr_t bytes_read =
+      Socket::RecvFrom(socket, isolate_data->udp_receive_buffer, 65536, &addr);
+  if (bytes_read == 0) {
+    Dart_SetReturnValue(args, Dart_Null());
+    return;
+  }
+  if (bytes_read < 0) {
+    ASSERT(bytes_read == -1);
+    Dart_SetReturnValue(args, DartUtils::NewDartOSError());
+    return;
+  }
+  // Datagram data read. Copy into buffer of the exact size,
+  ASSERT(bytes_read > 0);
+  uint8_t* data_buffer = NULL;
+  Dart_Handle data = IOBuffer::Allocate(bytes_read, &data_buffer);
+  if (Dart_IsError(data)) Dart_PropagateError(data);
+  ASSERT(data_buffer != NULL);
+  memmove(data_buffer, isolate_data->udp_receive_buffer, bytes_read);
+
+  // Get the port and clear it in the sockaddr structure.
+  int port = SocketAddress::GetAddrPort(&addr);
+  if (addr.addr.sa_family == AF_INET) {
+    addr.in.sin_port = 0;
+  } else {
+    ASSERT(addr.addr.sa_family == AF_INET6);
+    addr.in6.sin6_port = 0;
+  }
+  // Format the address to a string using the numeric format.
+  char numeric_address[INET6_ADDRSTRLEN];
+  Socket::FormatNumericAddress(&addr, numeric_address, INET6_ADDRSTRLEN);
+
+  // Create a Datagram object with the data and sender address and port.
+  const int kNumArgs = 5;
+  Dart_Handle dart_args[kNumArgs];
+  dart_args[0] = data;
+  dart_args[1] = Dart_NewBoolean(addr.addr.sa_family == AF_INET6);
+  dart_args[2] = Dart_NewStringFromCString(numeric_address);
+  if (Dart_IsError(dart_args[2])) Dart_PropagateError(dart_args[2]);
+  int len = SocketAddress::GetAddrLength(&addr);
+  dart_args[3] = Dart_NewTypedData(Dart_TypedData_kUint8, len);
+  if (Dart_IsError(dart_args[3])) Dart_PropagateError(dart_args[3]);
+  Dart_Handle err = Dart_ListSetAsBytes(
+      dart_args[3], 0, reinterpret_cast<uint8_t *>(&addr), len);
+  if (Dart_IsError(err)) Dart_PropagateError(err);
+  dart_args[4] = Dart_NewInteger(port);
+  if (Dart_IsError(dart_args[4])) Dart_PropagateError(dart_args[4]);
+  // TODO(sgjesse): Cache the _makeDatagram function somewhere.
+  Dart_Handle io_lib =
+      Dart_LookupLibrary(DartUtils::NewString("dart:io"));
+  if (Dart_IsError(io_lib)) Dart_PropagateError(io_lib);
+  Dart_Handle result =
+      Dart_Invoke(io_lib,
+                  DartUtils::NewString("_makeDatagram"),
+                  kNumArgs,
+                  dart_args);
+  if (Dart_IsError(result)) Dart_PropagateError(result);
+  Dart_SetReturnValue(args, result);
+}
+
+
 void FUNCTION_NAME(Socket_WriteList)(Dart_NativeArguments args) {
   static bool short_socket_writes = Dart_IsVMFlagSet("short_socket_write");
   intptr_t socket =
@@ -216,6 +308,44 @@
 }
 
 
+void FUNCTION_NAME(Socket_SendTo)(Dart_NativeArguments args) {
+  intptr_t socket =
+      Socket::GetSocketIdNativeField(Dart_GetNativeArgument(args, 0));
+  Dart_Handle buffer_obj = Dart_GetNativeArgument(args, 1);
+  intptr_t offset =
+      DartUtils::GetIntptrValue(Dart_GetNativeArgument(args, 2));
+  intptr_t length =
+      DartUtils::GetIntptrValue(Dart_GetNativeArgument(args, 3));
+  Dart_Handle address_obj = Dart_GetNativeArgument(args, 4);
+  ASSERT(Dart_IsList(address_obj));
+  RawAddr addr;
+  GetSockAddr(address_obj, &addr);
+  int64_t port = DartUtils::GetInt64ValueCheckRange(
+      Dart_GetNativeArgument(args, 5),
+      0,
+      65535);
+  SocketAddress::SetAddrPort(&addr, port);
+  Dart_TypedData_Type type;
+  uint8_t* buffer = NULL;
+  intptr_t len;
+  Dart_Handle result = Dart_TypedDataAcquireData(
+      buffer_obj, &type, reinterpret_cast<void**>(&buffer), &len);
+  if (Dart_IsError(result)) Dart_PropagateError(result);
+  ASSERT((offset + length) <= len);
+  buffer += offset;
+  intptr_t bytes_written = Socket::SendTo(socket, buffer, length, addr);
+  if (bytes_written >= 0) {
+    Dart_TypedDataReleaseData(buffer_obj);
+    Dart_SetReturnValue(args, Dart_NewInteger(bytes_written));
+  } else {
+    // Extract OSError before we release data, as it may override the error.
+    OSError os_error;
+    Dart_TypedDataReleaseData(buffer_obj);
+    Dart_SetReturnValue(args, DartUtils::NewDartOSError(&os_error));
+  }
+}
+
+
 void FUNCTION_NAME(Socket_GetPort)(Dart_NativeArguments args) {
   intptr_t socket =
       Socket::GetSocketIdNativeField(Dart_GetNativeArgument(args, 0));
@@ -411,7 +541,6 @@
 }
 
 
-
 CObject* Socket::ListInterfacesRequest(const CObjectArray& request) {
   if (request.Length() == 1 &&
       request[0]->IsInt32()) {
@@ -467,26 +596,143 @@
 }
 
 
+void FUNCTION_NAME(Socket_GetOption)(Dart_NativeArguments args) {
+  intptr_t socket =
+      Socket::GetSocketIdNativeField(Dart_GetNativeArgument(args, 0));
+  int64_t option = DartUtils::GetIntegerValue(Dart_GetNativeArgument(args, 1));
+  intptr_t protocol =
+      static_cast<intptr_t>(
+          DartUtils::GetIntegerValue(Dart_GetNativeArgument(args, 2)));
+  bool ok = false;
+  switch (option) {
+    case 0: {  // TCP_NODELAY.
+      bool enabled;
+      ok = Socket::GetNoDelay(socket, &enabled);
+      if (ok) {
+        Dart_SetReturnValue(args, enabled ? Dart_True() : Dart_False());
+      }
+      break;
+    }
+    case 1: {  // IP_MULTICAST_LOOP.
+      bool enabled;
+      ok = Socket::GetMulticastLoop(socket, protocol, &enabled);
+      if (ok) {
+        Dart_SetReturnValue(args, enabled ? Dart_True() : Dart_False());
+      }
+      break;
+    }
+    case 2: {  // IP_MULTICAST_TTL.
+      int value;
+      ok = Socket::GetMulticastHops(socket, protocol, &value);
+      if (ok) {
+        Dart_SetReturnValue(args, Dart_NewInteger(value));
+      }
+      break;
+    }
+    case 3: {  // IP_MULTICAST_IF.
+      UNIMPLEMENTED();
+      break;
+    }
+    case 4: {  // IP_BROADCAST.
+      bool enabled;
+      ok = Socket::GetBroadcast(socket, &enabled);
+      if (ok) {
+        Dart_SetReturnValue(args, enabled ? Dart_True() : Dart_False());
+      }
+      break;
+    }
+    default:
+      UNREACHABLE();
+      break;
+  }
+  // In case of failure the return value is not set above.
+  if (!ok) {
+    Dart_SetReturnValue(args, DartUtils::NewDartOSError());
+  }
+}
+
+
 void FUNCTION_NAME(Socket_SetOption)(Dart_NativeArguments args) {
   bool result = false;
   intptr_t socket =
       Socket::GetSocketIdNativeField(Dart_GetNativeArgument(args, 0));
-  Dart_Handle option_obj = Dart_GetNativeArgument(args, 1);
-  int64_t option;
-  Dart_Handle err = Dart_IntegerToInt64(option_obj, &option);
-  if (Dart_IsError(err)) Dart_PropagateError(err);
-  Dart_Handle enabled_obj = Dart_GetNativeArgument(args, 2);
-  bool enabled;
-  err = Dart_BooleanValue(enabled_obj, &enabled);
-  if (Dart_IsError(err)) Dart_PropagateError(err);
+  int64_t option = DartUtils::GetIntegerValue(Dart_GetNativeArgument(args, 1));
+  int64_t protocol = DartUtils::GetInt64ValueCheckRange(
+      Dart_GetNativeArgument(args, 2),
+      SocketAddress::TYPE_IPV4,
+      SocketAddress::TYPE_IPV6);
   switch (option) {
     case 0:  // TCP_NODELAY.
-      result = Socket::SetNoDelay(socket, enabled);
+      result = Socket::SetNoDelay(
+          socket, DartUtils::GetBooleanValue(Dart_GetNativeArgument(args, 3)));
+      break;
+    case 1:  // IP_MULTICAST_LOOP.
+      result = Socket::SetMulticastLoop(
+          socket,
+          protocol,
+          DartUtils::GetBooleanValue(Dart_GetNativeArgument(args, 3)));
+      break;
+    case 2:  // IP_MULTICAST_TTL.
+      result = Socket::SetMulticastHops(
+          socket,
+          protocol,
+          DartUtils::GetIntegerValue(Dart_GetNativeArgument(args, 3)));
+      break;
+    case 3: {  // IP_MULTICAST_IF.
+      UNIMPLEMENTED();
+      break;
+    }
+    case 4:  // IP_BROADCAST.
+      result = Socket::SetBroadcast(
+          socket, DartUtils::GetBooleanValue(Dart_GetNativeArgument(args, 3)));
       break;
     default:
+      Dart_PropagateError(Dart_NewApiError("Value outside expected range"));
       break;
   }
-  Dart_SetReturnValue(args, Dart_NewBoolean(result));
+  if (result) {
+    Dart_SetReturnValue(args, Dart_Null());
+  } else {
+    Dart_SetReturnValue(args, DartUtils::NewDartOSError());
+  }
+}
+
+
+void FUNCTION_NAME(Socket_JoinMulticast)(Dart_NativeArguments args) {
+  intptr_t socket =
+      Socket::GetSocketIdNativeField(Dart_GetNativeArgument(args, 0));
+  RawAddr addr;
+  GetSockAddr(Dart_GetNativeArgument(args, 1), &addr);
+  RawAddr interface;
+  if (Dart_GetNativeArgument(args, 2) != Dart_Null()) {
+    GetSockAddr(Dart_GetNativeArgument(args, 2), &interface);
+  }
+  int interfaceIndex =
+      DartUtils::GetIntegerValue(Dart_GetNativeArgument(args, 3));
+  if (Socket::JoinMulticast(socket, &addr, &interface, interfaceIndex)) {
+    Dart_SetReturnValue(args, Dart_Null());
+  } else {
+    Dart_SetReturnValue(args, DartUtils::NewDartOSError());
+  }
+}
+
+
+void FUNCTION_NAME(Socket_LeaveMulticast)(Dart_NativeArguments args) {
+  intptr_t socket =
+      Socket::GetSocketIdNativeField(Dart_GetNativeArgument(args, 0));
+  RawAddr addr;
+  GetSockAddr(Dart_GetNativeArgument(args, 1), &addr);
+  RawAddr interface;
+  if (Dart_GetNativeArgument(args, 2) != Dart_Null()) {
+    GetSockAddr(Dart_GetNativeArgument(args, 2), &interface);
+  }
+  int interfaceIndex =
+      DartUtils::GetIntegerValue(Dart_GetNativeArgument(args, 3));
+  if (Socket::LeaveMulticast(socket, &addr, &interface, interfaceIndex)) {
+    Dart_SetReturnValue(args, Dart_Null());
+  } else {
+    Dart_SetReturnValue(args, DartUtils::NewDartOSError());
+  }
 }
 
 
diff --git a/runtime/bin/socket.h b/runtime/bin/socket.h
index d4ae826..0c009b0 100644
--- a/runtime/bin/socket.h
+++ b/runtime/bin/socket.h
@@ -65,6 +65,7 @@
   const RawAddr& addr() const { return addr_; }
 
   static intptr_t GetAddrLength(const RawAddr* addr) {
+    ASSERT(addr->ss.ss_family == AF_INET || addr->ss.ss_family == AF_INET6);
     return addr->ss.ss_family == AF_INET6 ?
         sizeof(struct sockaddr_in6) : sizeof(struct sockaddr_in);
   }
@@ -170,10 +171,16 @@
   static intptr_t Available(intptr_t fd);
   static int Read(intptr_t fd, void* buffer, intptr_t num_bytes);
   static int Write(intptr_t fd, const void* buffer, intptr_t num_bytes);
+  static int SendTo(
+      intptr_t fd, const void* buffer, intptr_t num_bytes, RawAddr addr);
+  static int RecvFrom(
+      intptr_t fd, void* buffer, intptr_t num_bytes, RawAddr* addr);
   static intptr_t Create(RawAddr addr);
   static intptr_t Connect(intptr_t fd, RawAddr addr, const intptr_t port);
   static intptr_t CreateConnect(RawAddr addr,
                                 const intptr_t port);
+  static intptr_t CreateBindDatagram(
+      RawAddr* addr, intptr_t port, bool reuseAddress);
   static intptr_t GetPort(intptr_t fd);
   static SocketAddress* GetRemotePeer(intptr_t fd, intptr_t* port);
   static void GetError(intptr_t fd, OSError* os_error);
@@ -182,18 +189,31 @@
   static void Close(intptr_t fd);
   static bool SetNonBlocking(intptr_t fd);
   static bool SetBlocking(intptr_t fd);
+  static bool GetNoDelay(intptr_t fd, bool* enabled);
   static bool SetNoDelay(intptr_t fd, bool enabled);
+  static bool GetMulticastLoop(intptr_t fd, intptr_t protocol, bool* enabled);
+  static bool SetMulticastLoop(intptr_t fd, intptr_t protocol, bool enabled);
+  static bool GetMulticastHops(intptr_t fd, intptr_t protocol, int* value);
+  static bool SetMulticastHops(intptr_t fd, intptr_t protocol, int value);
+  static bool GetBroadcast(intptr_t fd, bool* value);
+  static bool SetBroadcast(intptr_t fd, bool value);
+  static bool JoinMulticast(
+      intptr_t fd, RawAddr* addr, RawAddr* interface, int interfaceIndex);
+  static bool LeaveMulticast(
+      intptr_t fd, RawAddr* addr, RawAddr* interface, int interfaceIndex);
 
   // Perform a hostname lookup. Returns a AddressList of SocketAddress's.
   static AddressList<SocketAddress>* LookupAddress(const char* host,
                                                    int type,
                                                    OSError** os_error);
+
   static bool ReverseLookup(RawAddr addr,
                             char* host,
                             intptr_t host_len,
                             OSError** os_error);
 
   static bool ParseAddress(int type, const char* address, RawAddr* addr);
+  static bool FormatNumericAddress(RawAddr* addr, char* address, int len);
 
   // List interfaces. Returns a AddressList of InterfaceSocketAddress's.
   static AddressList<InterfaceSocketAddress>* ListInterfaces(
diff --git a/runtime/bin/socket_android.cc b/runtime/bin/socket_android.cc
index 98af9a6..72a03bd 100644
--- a/runtime/bin/socket_android.cc
+++ b/runtime/bin/socket_android.cc
@@ -24,17 +24,27 @@
 
 SocketAddress::SocketAddress(struct sockaddr* sa) {
   ASSERT(INET6_ADDRSTRLEN >= INET_ADDRSTRLEN);
+  if (!Socket::FormatNumericAddress(
+          reinterpret_cast<RawAddr*>(sa), as_string_, INET6_ADDRSTRLEN)) {
+    as_string_[0] = 0;
+  }
   socklen_t salen = GetAddrLength(reinterpret_cast<RawAddr*>(sa));
-  if (TEMP_FAILURE_RETRY(getnameinfo(sa,
+  memmove(reinterpret_cast<void *>(&addr_), sa, salen);
+}
+
+
+bool Socket::FormatNumericAddress(RawAddr* addr, char* address, int len) {
+  socklen_t salen = SocketAddress::GetAddrLength(addr);
+  if (TEMP_FAILURE_RETRY(getnameinfo(&addr->addr,
                                      salen,
-                                     as_string_,
-                                     INET6_ADDRSTRLEN,
+                                     address,
+                                     len,
                                      NULL,
                                      0,
                                      NI_NUMERICHOST)) != 0) {
-    as_string_[0] = 0;
+    return false;
   }
-  memmove(reinterpret_cast<void *>(&addr_), sa, salen);
+  return true;
 }
 
 
@@ -105,6 +115,22 @@
 }
 
 
+int Socket::RecvFrom(intptr_t fd, void* buffer, intptr_t num_bytes,
+                     RawAddr* addr) {
+  ASSERT(fd >= 0);
+  socklen_t addr_len = sizeof(addr->ss);
+  ssize_t read_bytes =
+      TEMP_FAILURE_RETRY(
+          recvfrom(fd, buffer, num_bytes, 0, &addr->addr, &addr_len));
+  if (read_bytes == -1 && errno == EWOULDBLOCK) {
+    // If the read would block we need to retry and therefore return 0
+    // as the number of bytes written.
+    read_bytes = 0;
+  }
+  return read_bytes;
+}
+
+
 int Socket::Write(intptr_t fd, const void* buffer, intptr_t num_bytes) {
   ASSERT(fd >= 0);
   ssize_t written_bytes = TEMP_FAILURE_RETRY(write(fd, buffer, num_bytes));
@@ -118,6 +144,23 @@
 }
 
 
+int Socket::SendTo(intptr_t fd, const void* buffer, intptr_t num_bytes,
+                   RawAddr addr) {
+  ASSERT(fd >= 0);
+  ssize_t written_bytes =
+      TEMP_FAILURE_RETRY(
+          sendto(fd, buffer, num_bytes, 0,
+                 &addr.addr, SocketAddress::GetAddrLength(&addr)));
+  ASSERT(EAGAIN == EWOULDBLOCK);
+  if (written_bytes == -1 && errno == EWOULDBLOCK) {
+    // If the would block we need to retry and therefore return 0 as
+    // the number of bytes written.
+    written_bytes = 0;
+  }
+  return written_bytes;
+}
+
+
 intptr_t Socket::GetPort(intptr_t fd) {
   ASSERT(fd >= 0);
   RawAddr raw;
@@ -256,6 +299,36 @@
 }
 
 
+intptr_t Socket::CreateBindDatagram(
+    RawAddr* addr, intptr_t port, bool reuseAddress) {
+  intptr_t fd;
+
+  fd = TEMP_FAILURE_RETRY(
+      socket(addr->addr.sa_family, SOCK_DGRAM, IPPROTO_UDP));
+  if (fd < 0) return -1;
+
+  FDUtils::SetCloseOnExec(fd);
+
+  if (reuseAddress) {
+    int optval = 1;
+    VOID_TEMP_FAILURE_RETRY(
+        setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof(optval)));
+  }
+
+  SocketAddress::SetAddrPort(addr, port);
+  if (TEMP_FAILURE_RETRY(
+          bind(fd,
+               &addr->addr,
+               SocketAddress::GetAddrLength(addr))) < 0) {
+    TEMP_FAILURE_RETRY(close(fd));
+    return -1;
+  }
+
+  Socket::SetNonBlocking(fd);
+  return fd;
+}
+
+
 AddressList<InterfaceSocketAddress>* Socket::ListInterfaces(
     int type,
     OSError** os_error) {
@@ -291,7 +364,7 @@
           bind(fd,
                &addr.addr,
                SocketAddress::GetAddrLength(&addr))) < 0) {
-    TEMP_FAILURE_RETRY(close(fd));
+    VOID_TEMP_FAILURE_RETRY(close(fd));
     return -1;
   }
 
@@ -307,7 +380,7 @@
   }
 
   if (TEMP_FAILURE_RETRY(listen(fd, backlog > 0 ? backlog : SOMAXCONN)) != 0) {
-    TEMP_FAILURE_RETRY(close(fd));
+    VOID_TEMP_FAILURE_RETRY(close(fd));
     return -1;
   }
 
@@ -368,6 +441,21 @@
 }
 
 
+bool Socket::GetNoDelay(intptr_t fd, bool* enabled) {
+  int on;
+  socklen_t len = sizeof(on);
+  int err = TEMP_FAILURE_RETRY(getsockopt(fd,
+                                          IPPROTO_TCP,
+                                          TCP_NODELAY,
+                                          reinterpret_cast<void *>(&on),
+                                          &len));
+  if (err == 0) {
+    *enabled = on == 1;
+  }
+  return err == 0;
+}
+
+
 bool Socket::SetNoDelay(intptr_t fd, bool enabled) {
   int on = enabled ? 1 : 0;
   return TEMP_FAILURE_RETRY(setsockopt(fd,
@@ -377,6 +465,115 @@
                                        sizeof(on))) == 0;
 }
 
+
+bool Socket::GetMulticastLoop(intptr_t fd, intptr_t protocol, bool* enabled) {
+  uint8_t on;
+  socklen_t len = sizeof(on);
+  int level = protocol == SocketAddress::TYPE_IPV4 ? IPPROTO_IP : IPPROTO_IPV6;
+  int optname = protocol == SocketAddress::TYPE_IPV4
+      ? IP_MULTICAST_LOOP : IPV6_MULTICAST_LOOP;
+  if (TEMP_FAILURE_RETRY(getsockopt(fd,
+                                     level,
+                                     optname,
+                                     reinterpret_cast<char *>(&on),
+                                    &len)) == 0) {
+    *enabled = (on == 1);
+    return true;
+  }
+  return false;
+}
+
+
+bool Socket::SetMulticastLoop(intptr_t fd, intptr_t protocol, bool enabled) {
+  int on = enabled ? 1 : 0;
+  int level = protocol == SocketAddress::TYPE_IPV4 ? IPPROTO_IP : IPPROTO_IPV6;
+  int optname = protocol == SocketAddress::TYPE_IPV4
+      ? IP_MULTICAST_LOOP : IPV6_MULTICAST_LOOP;
+  return TEMP_FAILURE_RETRY(setsockopt(fd,
+                                       level,
+                                       optname,
+                                       reinterpret_cast<char *>(&on),
+                                       sizeof(on))) == 0;
+}
+
+
+bool Socket::GetMulticastHops(intptr_t fd, intptr_t protocol, int* value) {
+  uint8_t v;
+  socklen_t len = sizeof(v);
+  int level = protocol == SocketAddress::TYPE_IPV4 ? IPPROTO_IP : IPPROTO_IPV6;
+  int optname = protocol == SocketAddress::TYPE_IPV4
+      ? IP_MULTICAST_TTL : IPV6_MULTICAST_HOPS;
+  if (TEMP_FAILURE_RETRY(getsockopt(fd,
+                                    level,
+                                    optname,
+                                    reinterpret_cast<char *>(&v),
+                                    &len)) == 0) {
+    *value = v;
+    return true;
+  }
+  return false;
+}
+
+
+bool Socket::SetMulticastHops(intptr_t fd, intptr_t protocol, int value) {
+  int v = value;
+  int level = protocol == SocketAddress::TYPE_IPV4 ? IPPROTO_IP : IPPROTO_IPV6;
+  int optname = protocol == SocketAddress::TYPE_IPV4
+      ? IP_MULTICAST_TTL : IPV6_MULTICAST_HOPS;
+  return TEMP_FAILURE_RETRY(setsockopt(fd,
+                                       level,
+                                       optname,
+                                       reinterpret_cast<char *>(&v),
+                                       sizeof(v))) == 0;
+}
+
+
+bool Socket::GetBroadcast(intptr_t fd, bool* enabled) {
+  int on;
+  socklen_t len = sizeof(on);
+  int err = TEMP_FAILURE_RETRY(getsockopt(fd,
+                                          SOL_SOCKET,
+                                          SO_BROADCAST,
+                                          reinterpret_cast<char *>(&on),
+                                          &len));
+  if (err == 0) {
+    *enabled = on == 1;
+  }
+  return err == 0;
+}
+
+
+bool Socket::SetBroadcast(intptr_t fd, bool enabled) {
+  int on = enabled ? 1 : 0;
+  return TEMP_FAILURE_RETRY(setsockopt(fd,
+                                       SOL_SOCKET,
+                                       SO_BROADCAST,
+                                       reinterpret_cast<char *>(&on),
+                                       sizeof(on))) == 0;
+}
+
+
+bool Socket::JoinMulticast(
+    intptr_t fd, RawAddr* addr, RawAddr*, int interfaceIndex) {
+  int proto = addr->addr.sa_family == AF_INET ? IPPROTO_IP : IPPROTO_IPV6;
+  struct group_req mreq;
+  mreq.gr_interface = interfaceIndex;
+  memmove(&mreq.gr_group, &addr->ss, SocketAddress::GetAddrLength(addr));
+  return TEMP_FAILURE_RETRY(setsockopt(
+      fd, proto, MCAST_JOIN_GROUP, &mreq, sizeof(mreq))) == 0;
+}
+
+
+bool Socket::LeaveMulticast(
+    intptr_t fd, RawAddr* addr, RawAddr*, int interfaceIndex) {
+  int proto = addr->addr.sa_family == AF_INET ? IPPROTO_IP : IPPROTO_IPV6;
+  struct group_req mreq;
+  mreq.gr_interface = interfaceIndex;
+  memmove(&mreq.gr_group, &addr->ss, SocketAddress::GetAddrLength(addr));
+  return TEMP_FAILURE_RETRY(setsockopt(
+      fd, proto, MCAST_LEAVE_GROUP, &mreq, sizeof(mreq))) == 0;
+}
+
 }  // namespace bin
 }  // namespace dart
 
diff --git a/runtime/bin/socket_linux.cc b/runtime/bin/socket_linux.cc
index e50884b..2c4a337 100644
--- a/runtime/bin/socket_linux.cc
+++ b/runtime/bin/socket_linux.cc
@@ -26,17 +26,27 @@
 
 SocketAddress::SocketAddress(struct sockaddr* sa) {
   ASSERT(INET6_ADDRSTRLEN >= INET_ADDRSTRLEN);
+  if (!Socket::FormatNumericAddress(
+          reinterpret_cast<RawAddr*>(sa), as_string_, INET6_ADDRSTRLEN)) {
+    as_string_[0] = 0;
+  }
   socklen_t salen = GetAddrLength(reinterpret_cast<RawAddr*>(sa));
-  if (TEMP_FAILURE_RETRY(getnameinfo(sa,
+  memmove(reinterpret_cast<void *>(&addr_), sa, salen);
+}
+
+
+bool Socket::FormatNumericAddress(RawAddr* addr, char* address, int len) {
+  socklen_t salen = SocketAddress::GetAddrLength(addr);
+  if (TEMP_FAILURE_RETRY(getnameinfo(&addr->addr,
                                      salen,
-                                     as_string_,
-                                     INET6_ADDRSTRLEN,
+                                     address,
+                                     len,
                                      NULL,
                                      0,
                                      NI_NUMERICHOST)) != 0) {
-    as_string_[0] = 0;
+    return false;
   }
-  memmove(reinterpret_cast<void *>(&addr_), sa, salen);
+  return true;
 }
 
 
@@ -107,6 +117,22 @@
 }
 
 
+int Socket::RecvFrom(intptr_t fd, void* buffer, intptr_t num_bytes,
+                     RawAddr* addr) {
+  ASSERT(fd >= 0);
+  socklen_t addr_len = sizeof(addr->ss);
+  ssize_t read_bytes =
+      TEMP_FAILURE_RETRY(
+          recvfrom(fd, buffer, num_bytes, 0, &addr->addr, &addr_len));
+  if (read_bytes == -1 && errno == EWOULDBLOCK) {
+    // If the read would block we need to retry and therefore return 0
+    // as the number of bytes written.
+    read_bytes = 0;
+  }
+  return read_bytes;
+}
+
+
 int Socket::Write(intptr_t fd, const void* buffer, intptr_t num_bytes) {
   ASSERT(fd >= 0);
   ssize_t written_bytes = TEMP_FAILURE_RETRY(write(fd, buffer, num_bytes));
@@ -120,6 +146,23 @@
 }
 
 
+int Socket::SendTo(intptr_t fd, const void* buffer, intptr_t num_bytes,
+                   RawAddr addr) {
+  ASSERT(fd >= 0);
+  ssize_t written_bytes =
+      TEMP_FAILURE_RETRY(
+          sendto(fd, buffer, num_bytes, 0,
+                 &addr.addr, SocketAddress::GetAddrLength(&addr)));
+  ASSERT(EAGAIN == EWOULDBLOCK);
+  if (written_bytes == -1 && errno == EWOULDBLOCK) {
+    // If the would block we need to retry and therefore return 0 as
+    // the number of bytes written.
+    written_bytes = 0;
+  }
+  return written_bytes;
+}
+
+
 intptr_t Socket::GetPort(intptr_t fd) {
   ASSERT(fd >= 0);
   RawAddr raw;
@@ -257,6 +300,36 @@
 }
 
 
+intptr_t Socket::CreateBindDatagram(
+    RawAddr* addr, intptr_t port, bool reuseAddress) {
+  intptr_t fd;
+
+  fd = TEMP_FAILURE_RETRY(
+      socket(addr->addr.sa_family, SOCK_DGRAM, IPPROTO_UDP));
+  if (fd < 0) return -1;
+
+  FDUtils::SetCloseOnExec(fd);
+
+  if (reuseAddress) {
+    int optval = 1;
+    VOID_TEMP_FAILURE_RETRY(
+        setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof(optval)));
+  }
+
+  SocketAddress::SetAddrPort(addr, port);
+  if (TEMP_FAILURE_RETRY(
+          bind(fd,
+               &addr->addr,
+               SocketAddress::GetAddrLength(addr))) < 0) {
+    TEMP_FAILURE_RETRY(close(fd));
+    return -1;
+  }
+
+  Socket::SetNonBlocking(fd);
+  return fd;
+}
+
+
 static bool ShouldIncludeIfaAddrs(struct ifaddrs* ifa, int lookup_family) {
   if (ifa->ifa_addr == NULL) {
     // OpenVPN's virtual device tun0.
@@ -334,7 +407,7 @@
           bind(fd,
                &addr.addr,
                SocketAddress::GetAddrLength(&addr))) < 0) {
-    TEMP_FAILURE_RETRY(close(fd));
+    VOID_TEMP_FAILURE_RETRY(close(fd));
     return -1;
   }
 
@@ -350,7 +423,7 @@
   }
 
   if (TEMP_FAILURE_RETRY(listen(fd, backlog > 0 ? backlog : SOMAXCONN)) != 0) {
-    TEMP_FAILURE_RETRY(close(fd));
+    VOID_TEMP_FAILURE_RETRY(close(fd));
     return -1;
   }
 
@@ -410,6 +483,21 @@
 }
 
 
+bool Socket::GetNoDelay(intptr_t fd, bool* enabled) {
+  int on;
+  socklen_t len = sizeof(on);
+  int err = TEMP_FAILURE_RETRY(getsockopt(fd,
+                                          IPPROTO_TCP,
+                                          TCP_NODELAY,
+                                          reinterpret_cast<void *>(&on),
+                                          &len));
+  if (err == 0) {
+    *enabled = on == 1;
+  }
+  return err == 0;
+}
+
+
 bool Socket::SetNoDelay(intptr_t fd, bool enabled) {
   int on = enabled ? 1 : 0;
   return TEMP_FAILURE_RETRY(setsockopt(fd,
@@ -419,6 +507,115 @@
                                        sizeof(on))) == 0;
 }
 
+
+bool Socket::GetMulticastLoop(intptr_t fd, intptr_t protocol, bool* enabled) {
+  uint8_t on;
+  socklen_t len = sizeof(on);
+  int level = protocol == SocketAddress::TYPE_IPV4 ? IPPROTO_IP : IPPROTO_IPV6;
+  int optname = protocol == SocketAddress::TYPE_IPV4
+      ? IP_MULTICAST_LOOP : IPV6_MULTICAST_LOOP;
+  if (TEMP_FAILURE_RETRY(getsockopt(fd,
+                                     level,
+                                     optname,
+                                     reinterpret_cast<char *>(&on),
+                                    &len)) == 0) {
+    *enabled = (on == 1);
+    return true;
+  }
+  return false;
+}
+
+
+bool Socket::SetMulticastLoop(intptr_t fd, intptr_t protocol, bool enabled) {
+  int on = enabled ? 1 : 0;
+  int level = protocol == SocketAddress::TYPE_IPV4 ? IPPROTO_IP : IPPROTO_IPV6;
+  int optname = protocol == SocketAddress::TYPE_IPV4
+      ? IP_MULTICAST_LOOP : IPV6_MULTICAST_LOOP;
+  return TEMP_FAILURE_RETRY(setsockopt(fd,
+                                       level,
+                                       optname,
+                                       reinterpret_cast<char *>(&on),
+                                       sizeof(on))) == 0;
+}
+
+
+bool Socket::GetMulticastHops(intptr_t fd, intptr_t protocol, int* value) {
+  uint8_t v;
+  socklen_t len = sizeof(v);
+  int level = protocol == SocketAddress::TYPE_IPV4 ? IPPROTO_IP : IPPROTO_IPV6;
+  int optname = protocol == SocketAddress::TYPE_IPV4
+      ? IP_MULTICAST_TTL : IPV6_MULTICAST_HOPS;
+  if (TEMP_FAILURE_RETRY(getsockopt(fd,
+                                    level,
+                                    optname,
+                                    reinterpret_cast<char *>(&v),
+                                    &len)) == 0) {
+    *value = v;
+    return true;
+  }
+  return false;
+}
+
+
+bool Socket::SetMulticastHops(intptr_t fd, intptr_t protocol, int value) {
+  int v = value;
+  int level = protocol == SocketAddress::TYPE_IPV4 ? IPPROTO_IP : IPPROTO_IPV6;
+  int optname = protocol == SocketAddress::TYPE_IPV4
+      ? IP_MULTICAST_TTL : IPV6_MULTICAST_HOPS;
+  return TEMP_FAILURE_RETRY(setsockopt(fd,
+                                       level,
+                                       optname,
+                                       reinterpret_cast<char *>(&v),
+                                       sizeof(v))) == 0;
+}
+
+
+bool Socket::GetBroadcast(intptr_t fd, bool* enabled) {
+  int on;
+  socklen_t len = sizeof(on);
+  int err = TEMP_FAILURE_RETRY(getsockopt(fd,
+                                          SOL_SOCKET,
+                                          SO_BROADCAST,
+                                          reinterpret_cast<char *>(&on),
+                                          &len));
+  if (err == 0) {
+    *enabled = on == 1;
+  }
+  return err == 0;
+}
+
+
+bool Socket::SetBroadcast(intptr_t fd, bool enabled) {
+  int on = enabled ? 1 : 0;
+  return TEMP_FAILURE_RETRY(setsockopt(fd,
+                                       SOL_SOCKET,
+                                       SO_BROADCAST,
+                                       reinterpret_cast<char *>(&on),
+                                       sizeof(on))) == 0;
+}
+
+
+bool Socket::JoinMulticast(
+    intptr_t fd, RawAddr* addr, RawAddr*, int interfaceIndex) {
+  int proto = addr->addr.sa_family == AF_INET ? IPPROTO_IP : IPPROTO_IPV6;
+  struct group_req mreq;
+  mreq.gr_interface = interfaceIndex;
+  memmove(&mreq.gr_group, &addr->ss, SocketAddress::GetAddrLength(addr));
+  return TEMP_FAILURE_RETRY(setsockopt(
+      fd, proto, MCAST_JOIN_GROUP, &mreq, sizeof(mreq))) == 0;
+}
+
+
+bool Socket::LeaveMulticast(
+    intptr_t fd, RawAddr* addr, RawAddr*, int interfaceIndex) {
+  int proto = addr->addr.sa_family == AF_INET ? IPPROTO_IP : IPPROTO_IPV6;
+  struct group_req mreq;
+  mreq.gr_interface = interfaceIndex;
+  memmove(&mreq.gr_group, &addr->ss, SocketAddress::GetAddrLength(addr));
+  return TEMP_FAILURE_RETRY(setsockopt(
+      fd, proto, MCAST_LEAVE_GROUP, &mreq, sizeof(mreq))) == 0;
+}
+
 }  // namespace bin
 }  // namespace dart
 
diff --git a/runtime/bin/socket_macos.cc b/runtime/bin/socket_macos.cc
index b8eef1d..f626dff 100644
--- a/runtime/bin/socket_macos.cc
+++ b/runtime/bin/socket_macos.cc
@@ -26,17 +26,27 @@
 
 SocketAddress::SocketAddress(struct sockaddr* sa) {
   ASSERT(INET6_ADDRSTRLEN >= INET_ADDRSTRLEN);
+  if (!Socket::FormatNumericAddress(
+          reinterpret_cast<RawAddr*>(sa), as_string_, INET6_ADDRSTRLEN)) {
+    as_string_[0] = 0;
+  }
   socklen_t salen = GetAddrLength(reinterpret_cast<RawAddr*>(sa));
-  if (TEMP_FAILURE_RETRY(getnameinfo(sa,
+  memmove(reinterpret_cast<void *>(&addr_), sa, salen);
+}
+
+
+bool Socket::FormatNumericAddress(RawAddr* addr, char* address, int len) {
+  socklen_t salen = SocketAddress::GetAddrLength(addr);
+  if (TEMP_FAILURE_RETRY(getnameinfo(&addr->addr,
                                      salen,
-                                     as_string_,
-                                     INET6_ADDRSTRLEN,
+                                     address,
+                                     len,
                                      NULL,
                                      0,
                                      NI_NUMERICHOST)) != 0) {
-    as_string_[0] = 0;
+    return false;
   }
-  memmove(reinterpret_cast<void *>(&addr_), sa, salen);
+  return true;
 }
 
 
@@ -107,6 +117,22 @@
 }
 
 
+int Socket::RecvFrom(intptr_t fd, void* buffer, intptr_t num_bytes,
+                     RawAddr* addr) {
+  ASSERT(fd >= 0);
+  socklen_t addr_len = sizeof(addr->ss);
+  ssize_t read_bytes =
+      TEMP_FAILURE_RETRY(
+          recvfrom(fd, buffer, num_bytes, 0, &addr->addr, &addr_len));
+  if (read_bytes == -1 && errno == EWOULDBLOCK) {
+    // If the read would block we need to retry and therefore return 0
+    // as the number of bytes written.
+    read_bytes = 0;
+  }
+  return read_bytes;
+}
+
+
 int Socket::Write(intptr_t fd, const void* buffer, intptr_t num_bytes) {
   ASSERT(fd >= 0);
   ssize_t written_bytes = TEMP_FAILURE_RETRY(write(fd, buffer, num_bytes));
@@ -120,6 +146,23 @@
 }
 
 
+int Socket::SendTo(intptr_t fd, const void* buffer, intptr_t num_bytes,
+                   RawAddr addr) {
+  ASSERT(fd >= 0);
+  ssize_t written_bytes =
+      TEMP_FAILURE_RETRY(
+          sendto(fd, buffer, num_bytes, 0,
+                 &addr.addr, SocketAddress::GetAddrLength(&addr)));
+  ASSERT(EAGAIN == EWOULDBLOCK);
+  if (written_bytes == -1 && errno == EWOULDBLOCK) {
+    // If the would block we need to retry and therefore return 0 as
+    // the number of bytes written.
+    written_bytes = 0;
+  }
+  return written_bytes;
+}
+
+
 intptr_t Socket::GetPort(intptr_t fd) {
   ASSERT(fd >= 0);
   RawAddr raw;
@@ -257,6 +300,36 @@
 }
 
 
+intptr_t Socket::CreateBindDatagram(
+    RawAddr* addr, intptr_t port, bool reuseAddress) {
+  intptr_t fd;
+
+  fd = TEMP_FAILURE_RETRY(
+      socket(addr->addr.sa_family, SOCK_DGRAM, IPPROTO_UDP));
+  if (fd < 0) return -1;
+
+  FDUtils::SetCloseOnExec(fd);
+
+  if (reuseAddress) {
+    int optval = 1;
+    VOID_TEMP_FAILURE_RETRY(
+        setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof(optval)));
+  }
+
+  SocketAddress::SetAddrPort(addr, port);
+  if (TEMP_FAILURE_RETRY(
+          bind(fd,
+               &addr->addr,
+               SocketAddress::GetAddrLength(addr))) < 0) {
+    VOID_TEMP_FAILURE_RETRY(close(fd));
+    return -1;
+  }
+
+  Socket::SetNonBlocking(fd);
+  return fd;
+}
+
+
 static bool ShouldIncludeIfaAddrs(struct ifaddrs* ifa, int lookup_family) {
   if (ifa->ifa_addr == NULL) {
     // OpenVPN's virtual device tun0.
@@ -401,6 +474,21 @@
 }
 
 
+bool Socket::GetNoDelay(intptr_t fd, bool* enabled) {
+  int on;
+  socklen_t len = sizeof(on);
+  int err = TEMP_FAILURE_RETRY(getsockopt(fd,
+                                          IPPROTO_TCP,
+                                          TCP_NODELAY,
+                                          reinterpret_cast<void *>(&on),
+                                          &len));
+  if (err == 0) {
+    *enabled = on == 1;
+  }
+  return err == 0;
+}
+
+
 bool Socket::SetNoDelay(intptr_t fd, bool enabled) {
   int on = enabled ? 1 : 0;
   return TEMP_FAILURE_RETRY(setsockopt(fd,
@@ -410,6 +498,165 @@
                                        sizeof(on))) == 0;
 }
 
+
+bool Socket::GetMulticastLoop(intptr_t fd, intptr_t protocol, bool* enabled) {
+  uint8_t on;
+  socklen_t len = sizeof(on);
+  int level = protocol == SocketAddress::TYPE_IPV4 ? IPPROTO_IP : IPPROTO_IPV6;
+  int optname = protocol == SocketAddress::TYPE_IPV4
+      ? IP_MULTICAST_LOOP : IPV6_MULTICAST_LOOP;
+  if (TEMP_FAILURE_RETRY(getsockopt(fd,
+                                     level,
+                                     optname,
+                                     reinterpret_cast<char *>(&on),
+                                    &len)) == 0) {
+    *enabled = (on == 1);
+    return true;
+  }
+  return false;
+}
+
+
+bool Socket::SetMulticastLoop(intptr_t fd, intptr_t protocol, bool enabled) {
+  u_int on = enabled ? 1 : 0;
+  int level = protocol == SocketAddress::TYPE_IPV4 ? IPPROTO_IP : IPPROTO_IPV6;
+  int optname = protocol == SocketAddress::TYPE_IPV4
+      ? IP_MULTICAST_LOOP : IPV6_MULTICAST_LOOP;
+  return TEMP_FAILURE_RETRY(setsockopt(fd,
+                                       level,
+                                       optname,
+                                       reinterpret_cast<char *>(&on),
+                                       sizeof(on))) == 0;
+}
+
+
+bool Socket::GetMulticastHops(intptr_t fd, intptr_t protocol, int* value) {
+  uint8_t v;
+  socklen_t len = sizeof(v);
+  int level = protocol == SocketAddress::TYPE_IPV4 ? IPPROTO_IP : IPPROTO_IPV6;
+  int optname = protocol == SocketAddress::TYPE_IPV4
+      ? IP_MULTICAST_TTL : IPV6_MULTICAST_HOPS;
+  if (TEMP_FAILURE_RETRY(getsockopt(fd,
+                                    level,
+                                    optname,
+                                    reinterpret_cast<char *>(&v),
+                                    &len)) == 0) {
+    *value = v;
+    return true;
+  }
+  return false;
+}
+
+
+bool Socket::SetMulticastHops(intptr_t fd, intptr_t protocol, int value) {
+  int v = value;
+  int level = protocol == SocketAddress::TYPE_IPV4 ? IPPROTO_IP : IPPROTO_IPV6;
+  int optname = protocol == SocketAddress::TYPE_IPV4
+      ? IP_MULTICAST_TTL : IPV6_MULTICAST_HOPS;
+  return TEMP_FAILURE_RETRY(setsockopt(fd,
+                                       level,
+                                       optname,
+                                       reinterpret_cast<char *>(&v),
+                                       sizeof(v))) == 0;
+}
+
+
+bool Socket::GetBroadcast(intptr_t fd, bool* enabled) {
+  int on;
+  socklen_t len = sizeof(on);
+  int err = TEMP_FAILURE_RETRY(getsockopt(fd,
+                                          SOL_SOCKET,
+                                          SO_BROADCAST,
+                                          reinterpret_cast<char *>(&on),
+                                          &len));
+  if (err == 0) {
+    *enabled = on == 1;
+  }
+  return err == 0;
+}
+
+
+bool Socket::SetBroadcast(intptr_t fd, bool enabled) {
+  int on = enabled ? 1 : 0;
+  return TEMP_FAILURE_RETRY(setsockopt(fd,
+                                       SOL_SOCKET,
+                                       SO_BROADCAST,
+                                       reinterpret_cast<char *>(&on),
+                                       sizeof(on))) == 0;
+}
+
+
+static bool JoinOrLeaveMulticast(intptr_t fd,
+                                 RawAddr* addr,
+                                 RawAddr* interface,
+                                 int interfaceIndex,
+                                 bool join) {
+  if (addr->addr.sa_family == AF_INET) {
+    ASSERT(interface->addr.sa_family == AF_INET);
+    struct ip_mreq mreq;
+    memmove(&mreq.imr_multiaddr,
+            &addr->in.sin_addr,
+            SocketAddress::GetAddrLength(addr));
+    memmove(&mreq.imr_interface,
+            &interface->in.sin_addr,
+            SocketAddress::GetAddrLength(interface));
+    if (join) {
+      return TEMP_FAILURE_RETRY(setsockopt(
+          fd, IPPROTO_IP, IP_ADD_MEMBERSHIP, &mreq, sizeof(mreq))) == 0;
+    } else {
+      return TEMP_FAILURE_RETRY(setsockopt(
+          fd, IPPROTO_IP, IP_DROP_MEMBERSHIP, &mreq, sizeof(mreq))) == 0;
+    }
+  } else {
+    ASSERT(addr->addr.sa_family == AF_INET6);
+    struct ipv6_mreq mreq;
+    memmove(&mreq.ipv6mr_multiaddr,
+            &addr->in6.sin6_addr,
+            SocketAddress::GetAddrLength(addr));
+    mreq.ipv6mr_interface = interfaceIndex;
+    if (join) {
+      return TEMP_FAILURE_RETRY(setsockopt(
+          fd, IPPROTO_IPV6, IPV6_JOIN_GROUP, &mreq, sizeof(mreq))) == 0;
+    } else {
+      return TEMP_FAILURE_RETRY(setsockopt(
+          fd, IPPROTO_IPV6, IPV6_LEAVE_GROUP, &mreq, sizeof(mreq))) == 0;
+    }
+  }
+}
+
+bool Socket::JoinMulticast(
+  intptr_t fd, RawAddr* addr, RawAddr* interface, int interfaceIndex) {
+    return JoinOrLeaveMulticast(fd, addr, interface, interfaceIndex, true);
+  if (addr->addr.sa_family == AF_INET) {
+    ASSERT(interface->addr.sa_family == AF_INET);
+    struct ip_mreq mreq;
+    memmove(&mreq.imr_multiaddr,
+            &addr->in.sin_addr,
+            SocketAddress::GetAddrLength(addr));
+    memmove(&mreq.imr_interface,
+            &interface->in.sin_addr,
+            SocketAddress::GetAddrLength(interface));
+    return TEMP_FAILURE_RETRY(setsockopt(
+        fd, IPPROTO_IP, IP_ADD_MEMBERSHIP, &mreq, sizeof(mreq))) == 0;
+  } else {
+    ASSERT(addr->addr.sa_family == AF_INET6);
+    ASSERT(interface->addr.sa_family == AF_INET6);
+    struct ipv6_mreq mreq;
+    memmove(&mreq.ipv6mr_multiaddr,
+            &addr->in6.sin6_addr,
+            SocketAddress::GetAddrLength(addr));
+    mreq.ipv6mr_interface = interfaceIndex;
+    return TEMP_FAILURE_RETRY(setsockopt(
+        fd, IPPROTO_IPV6, IPV6_JOIN_GROUP, &mreq, sizeof(mreq))) == 0;
+  }
+}
+
+
+bool Socket::LeaveMulticast(
+    intptr_t fd, RawAddr* addr, RawAddr* interface, int interfaceIndex) {
+  return JoinOrLeaveMulticast(fd, addr, interface, interfaceIndex, false);
+}
+
 }  // namespace bin
 }  // namespace dart
 
diff --git a/runtime/bin/socket_patch.dart b/runtime/bin/socket_patch.dart
index d313a0d..a85320c 100644
--- a/runtime/bin/socket_patch.dart
+++ b/runtime/bin/socket_patch.dart
@@ -247,6 +247,10 @@
   static const LIST_INTERFACES = 1;
   static const REVERSE_LOOKUP = 2;
 
+  // Protocol flags.
+  static const int PROTOCOL_IPV4 = 1 << 0;
+  static const int PROTOCOL_IPV6 = 1 << 1;
+
   // Socket close state
   bool isClosed = false;
   bool isClosing = false;
@@ -265,8 +269,8 @@
   // The type flags for this socket.
   final int typeFlags;
 
-  // Holds the port of the socket, null if not known.
-  int localPort;
+  // Holds the port of the socket, 0 if not known.
+  int localPort = 0;
 
   // Holds the address used to connect or bind the socket.
   InternetAddress address;
@@ -398,6 +402,39 @@
         });
   }
 
+  static Future<_NativeSocket> bindDatagram(
+      host, int port, bool reuseAddress) {
+    return new Future.value(host)
+        .then((host) {
+          if (host is _InternetAddress) return host;
+          return lookup(host)
+              .then((list) {
+                if (list.length == 0) {
+                  throw createError(response, "Failed host lookup: '$host'");
+                }
+                return list[0];
+              });
+        })
+        .then((address) {
+          var socket = new _NativeSocket.datagram(address);
+          var result = socket.nativeCreateBindDatagram(
+              address._sockaddr_storage, port, reuseAddress);
+          if (result is OSError) {
+            throw new SocketException("Failed to create datagram socket",
+                                      osError: result,
+                                      address: address,
+                                      port: port);
+          }
+          if (port != 0) socket.localPort = port;
+          return socket;
+        });
+  }
+
+  _NativeSocket.datagram(this.address)
+      : typeFlags = TYPE_NORMAL_SOCKET {
+    eventHandlers = new List(EVENT_COUNT + 1);
+  }
+
   _NativeSocket.normal() : typeFlags = TYPE_NORMAL_SOCKET {
     eventHandlers = new List(EVENT_COUNT + 1);
   }
@@ -440,6 +477,16 @@
     return result;
   }
 
+  Datagram receive() {
+    if (isClosing || isClosed) return null;
+    var result = nativeRecvFrom();
+    if (result is OSError) {
+      reportError(result, "Receive failed");
+      return null;
+    }
+    return result;
+  }
+
   int write(List<int> buffer, int offset, int bytes) {
     if (buffer is! List) throw new ArgumentError();
     if (offset == null) offset = 0;
@@ -470,6 +517,22 @@
     return result;
   }
 
+  int send(List<int> buffer, int offset, int bytes,
+           InternetAddress address, int port) {
+    if (isClosing || isClosed) return 0;
+    _BufferAndStart bufferAndStart =
+        _ensureFastAndSerializableByteData(
+            buffer, offset, bytes);
+    var result = nativeSendTo(
+        bufferAndStart.buffer, bufferAndStart.start, bytes,
+        address._sockaddr_storage, port);
+    if (result is OSError) {
+      scheduleMicrotask(() => reportError(result, "Send failed"));
+      result = 0;
+    }
+    return result;
+  }
+
   _NativeSocket accept() {
     // Don't issue accept if we're closing.
     if (isClosing || isClosed) return null;
@@ -481,7 +544,7 @@
   }
 
   int get port {
-    if (localPort != null) return localPort;
+    if (localPort != 0) return localPort;
     return localPort = nativeGetPort();
   }
 
@@ -697,26 +760,91 @@
     close();
   }
 
-  bool setOption(SocketOption option, bool enabled) {
+  getOption(SocketOption option) {
     if (option is! SocketOption) throw new ArgumentError(options);
-    if (enabled is! bool) throw new ArgumentError(enabled);
-    return nativeSetOption(option._value, enabled);
+    var result = nativeGetOption(option._value, address.type._value);
+    if (result is OSError) throw result;
+    return result;
+  }
+
+  bool setOption(SocketOption option, value) {
+    if (option is! SocketOption) throw new ArgumentError(options);
+    var result = nativeSetOption(option._value, address.type._value, value);
+    if (result is OSError) throw result;
+  }
+
+  InternetAddress multicastAddress(
+      InternetAddress addr, NetworkInterface interface) {
+    // On Mac OS using the interface index for joining IPv4 multicast groups
+    // is not supported. Here the IP address of the interface is needed.
+    if (Platform.isMacOS && addr.type == InternetAddressType.IP_V4) {
+      if (interface != null) {
+        for (int i = 0; i < interface.addresses.length; i++) {
+          if (addr.type == InternetAddressType.IP_V4) {
+            return interface.addresses[i];
+          }
+        }
+        // No IPv4 address found on the interface.
+        throw new SocketException(
+            "The network interface does not have an address "
+            "of the same family as the multicast address");
+      } else {
+        // Default to the ANY address if on iterface is specified.
+        return InternetAddress.ANY_IP_V4;
+      }
+    } else {
+      return null;
+    }
+  }
+
+  void joinMulticast(InternetAddress addr, NetworkInterface interface) {
+    var interfaceAddr = multicastAddress(addr, interface);
+    var interfaceIndex = interface == null ? 0 : interface.index;
+    var result = nativeJoinMulticast(
+        addr._sockaddr_storage,
+        interfaceAddr == null ? null : interfaceAddr._sockaddr_storage,
+        interfaceIndex);
+    if (result is OSError) throw result;
+  }
+
+  void leaveMulticast(InternetAddress addr, NetworkInterface interface) {
+    var interfaceAddr = multicastAddress(addr, interface);
+    var interfaceIndex = interface == null ? 0 : interface.index;
+    var result = nativeLeaveMulticast(
+        addr._sockaddr_storage,
+        interfaceAddr == null ? null : interfaceAddr._sockaddr_storage,
+        interfaceIndex);
+    if (result is OSError) throw result;
   }
 
   void nativeSetSocketId(int id) native "Socket_SetSocketId";
   nativeAvailable() native "Socket_Available";
   nativeRead(int len) native "Socket_Read";
+  nativeRecvFrom() native "Socket_RecvFrom";
   nativeWrite(List<int> buffer, int offset, int bytes)
       native "Socket_WriteList";
+  nativeSendTo(List<int> buffer, int offset, int bytes,
+               List<int> address, int port)
+      native "Socket_SendTo";
   nativeCreateConnect(List<int> addr,
                       int port) native "Socket_CreateConnect";
   nativeCreateBindListen(List<int> addr, int port, int backlog, bool v6Only)
       native "ServerSocket_CreateBindListen";
+  nativeCreateBindDatagram(List<int> addr, int port, bool reuseAddress)
+      native "Socket_CreateBindDatagram";
   nativeAccept(_NativeSocket socket) native "ServerSocket_Accept";
   int nativeGetPort() native "Socket_GetPort";
   List nativeGetRemotePeer() native "Socket_GetRemotePeer";
   OSError nativeGetError() native "Socket_GetError";
-  bool nativeSetOption(int option, bool enabled) native "Socket_SetOption";
+  nativeGetOption(int option, int protocol) native "Socket_GetOption";
+  bool nativeSetOption(int option, int protocol, value)
+      native "Socket_SetOption";
+  bool nativeJoinMulticast(
+      List<int> addr, List<int> interfaceAddr, int interfaceIndex)
+          native "Socket_JoinMulticast";
+  bool nativeLeaveMulticast(
+      List<int> addr, List<int> interfaceAddr, int interfaceIndex)
+      native "Socket_LeaveMulticast";
 }
 
 
@@ -1281,3 +1409,156 @@
     }
   }
 }
+
+
+patch class RawDatagramSocket {
+  /* patch */ static Future<RawDatagramSocket> bind(
+      host, int port, {bool reuseAddress: true}) {
+    return _RawDatagramSocket.bind(host, port, reuseAddress);
+  }
+}
+
+class _RawDatagramSocket extends Stream implements RawDatagramSocket {
+  _NativeSocket _socket;
+  StreamController<RawSocketEvent> _controller;
+  bool _readEventsEnabled = true;
+  bool _writeEventsEnabled = true;
+
+  _RawDatagramSocket(this._socket) {
+    var zone = Zone.current;
+    _controller = new StreamController(sync: true,
+        onListen: _onSubscriptionStateChange,
+        onCancel: _onSubscriptionStateChange,
+        onPause: _onPauseStateChange,
+        onResume: _onPauseStateChange);
+    _socket.closeFuture.then((_) => _controller.close());
+    _socket.setHandlers(
+      read: () => _controller.add(RawSocketEvent.READ),
+      write: () {
+        // The write event handler is automatically disabled by the
+        // event handler when it fires.
+        _writeEventsEnabled = false;
+        _controller.add(RawSocketEvent.WRITE);
+      },
+      closed: () => _controller.add(RawSocketEvent.READ_CLOSED),
+      destroyed: () => _controller.add(RawSocketEvent.CLOSED),
+      error: zone.bindUnaryCallback((e) {
+        _controller.addError(e);
+        close();
+      })
+    );
+  }
+
+  static Future<RawDatagramSocket> bind(
+      host, int port, bool reuseAddress) {
+    if (port < 0 || port > 0xffff)
+      throw new ArgumentError("Invalid port $port");
+    return _NativeSocket.bindDatagram(host, port, reuseAddress)
+        .then((socket) => new _RawDatagramSocket(socket));
+  }
+
+  StreamSubscription<RawSocketEvent> listen(void onData(RawSocketEvent event),
+                                            {Function onError,
+                                             void onDone(),
+                                             bool cancelOnError}) {
+    return _controller.stream.listen(
+        onData,
+        onError: onError,
+        onDone: onDone,
+        cancelOnError: cancelOnError);
+  }
+
+  Future close() => _socket.close().then((_) => this);
+
+  int send(List<int> buffer, InternetAddress address, int port) =>
+      _socket.send(buffer, 0, buffer.length, address, port);
+
+  Datagram receive() {
+    return _socket.receive();
+  }
+
+  void joinMulticast(InternetAddress group, [NetworkInterface interface]) {
+    _socket.joinMulticast(group, interface);
+  }
+
+  void leaveMulticast(InternetAddress group, [NetworkInterface interface]) {
+    _socket.leaveMulticast(group, interface);
+  }
+
+  bool get readEventsEnabled => _readEventsEnabled;
+  void set readEventsEnabled(bool value) {
+    if (value != _readEventsEnabled) {
+      _readEventsEnabled = value;
+      if (!_controller.isPaused) _resume();
+    }
+  }
+
+  bool get writeEventsEnabled => _writeEventsEnabled;
+  void set writeEventsEnabled(bool value) {
+    if (value != _writeEventsEnabled) {
+      _writeEventsEnabled = value;
+      if (!_controller.isPaused) _resume();
+    }
+  }
+
+  bool get multicastLoopback =>
+      _socket.getOption(SocketOption._IP_MULTICAST_LOOP);
+  void set multicastLoopback(bool value) =>
+      _socket.setOption(SocketOption._IP_MULTICAST_LOOP, value);
+
+  int get multicastHops =>
+      _socket.getOption(SocketOption._IP_MULTICAST_HOPS);
+  void set multicastHops(int value) =>
+      _socket.setOption(SocketOption._IP_MULTICAST_HOPS, value);
+
+  NetworkInterface get multicastInterface =>
+      throw "Not implemented";
+  void set multicastInterface(NetworkInterface value) =>
+      throw "Not implemented";
+
+  bool get broadcastEnabled =>
+      _socket.getOption(SocketOption._IP_BROADCAST);
+  void set broadcastEnabled(bool value) =>
+      _socket.setOption(SocketOption._IP_BROADCAST, value);
+
+  int get port => _socket.port;
+
+  InternetAddress get address => _socket.address;
+
+  _pause() {
+    _socket.setListening(read: false, write: false);
+  }
+
+  void _resume() {
+    _socket.setListening(read: _readEventsEnabled, write: _writeEventsEnabled);
+  }
+
+  void _onPauseStateChange() {
+    if (_controller.isPaused) {
+      _pause();
+    } else {
+      _resume();
+    }
+  }
+
+  void _onSubscriptionStateChange() {
+    if (_controller.hasListener) {
+      _resume();
+    } else {
+      close();
+    }
+  }
+}
+
+Datagram _makeDatagram(List<int> data,
+                       bool ipV6,
+                       String address,
+                       List<int> sockaddr_storage,
+                       int port) {
+  var addressType =
+      ipV6 ? InternetAddressType.IP_V6 : InternetAddressType.IP_V4;
+  return new Datagram(
+      data,
+      new _InternetAddress(addressType, address, null, sockaddr_storage),
+      port);
+}
diff --git a/runtime/bin/socket_win.cc b/runtime/bin/socket_win.cc
index 7610a73..3664830 100644
--- a/runtime/bin/socket_win.cc
+++ b/runtime/bin/socket_win.cc
@@ -22,12 +22,7 @@
 
   // Clear the port before calling WSAAddressToString as WSAAddressToString
   // includes the port in the formatted string.
-  DWORD len = INET6_ADDRSTRLEN;
-  int err = WSAAddressToStringA(&raw->addr,
-                                sizeof(RawAddr),
-                                NULL,
-                                as_string_,
-                                &len);
+  int err = Socket::FormatNumericAddress(raw, as_string_, INET6_ADDRSTRLEN);
 
   if (err != 0) {
     as_string_[0] = 0;
@@ -37,6 +32,18 @@
           SocketAddress::GetAddrLength(raw));
 }
 
+
+bool Socket::FormatNumericAddress(RawAddr* addr, char* address, int len) {
+  socklen_t salen = SocketAddress::GetAddrLength(addr);
+  DWORD l = len;
+  return WSAAddressToStringA(&addr->addr,
+                                salen,
+                                NULL,
+                                address,
+                                &l) != 0;
+}
+
+
 bool Socket::Initialize() {
   static bool socket_initialized = false;
   if (socket_initialized) return true;
@@ -64,12 +71,28 @@
 }
 
 
+int Socket::RecvFrom(intptr_t fd, void* buffer, intptr_t num_bytes,
+                     RawAddr* addr) {
+  Handle* handle = reinterpret_cast<Handle*>(fd);
+  socklen_t addr_len = sizeof(addr->ss);
+  return handle->RecvFrom(buffer, num_bytes, &addr->addr, addr_len);
+}
+
+
 intptr_t Socket::Write(intptr_t fd, const void* buffer, intptr_t num_bytes) {
   Handle* handle = reinterpret_cast<Handle*>(fd);
   return handle->Write(buffer, num_bytes);
 }
 
 
+int Socket::SendTo(
+    intptr_t fd, const void* buffer, intptr_t num_bytes, RawAddr addr) {
+  Handle* handle = reinterpret_cast<Handle*>(fd);
+  return handle->SendTo(
+    buffer, num_bytes, &addr.addr, SocketAddress::GetAddrLength(&addr));
+}
+
+
 intptr_t Socket::GetPort(intptr_t fd) {
   ASSERT(reinterpret_cast<Handle*>(fd)->is_socket());
   SocketHandle* socket_handle = reinterpret_cast<SocketHandle*>(fd);
@@ -282,6 +305,47 @@
 }
 
 
+intptr_t Socket::CreateBindDatagram(
+    RawAddr* addr, intptr_t port, bool reuseAddress) {
+  SOCKET s = socket(addr->ss.ss_family, SOCK_DGRAM, IPPROTO_UDP);
+  if (s == INVALID_SOCKET) {
+    return -1;
+  }
+
+  int status;
+  if (reuseAddress) {
+    BOOL optval = true;
+    status = setsockopt(s,
+                        SOL_SOCKET,
+                        SO_REUSEADDR,
+                        reinterpret_cast<const char*>(&optval),
+                        sizeof(optval));
+    if (status == SOCKET_ERROR) {
+      DWORD rc = WSAGetLastError();
+      closesocket(s);
+      SetLastError(rc);
+      return -1;
+    }
+  }
+
+  SocketAddress::SetAddrPort(addr, port);
+
+  status = bind(s,
+                &addr->addr,
+                SocketAddress::GetAddrLength(addr));
+  if (status == SOCKET_ERROR) {
+    DWORD rc = WSAGetLastError();
+    closesocket(s);
+    SetLastError(rc);
+    return -1;
+  }
+
+  DatagramSocket* datagram_socket = new DatagramSocket(s);
+  datagram_socket->EnsureInitialized(EventHandler::delegate());
+  return reinterpret_cast<intptr_t>(datagram_socket);
+}
+
+
 AddressList<InterfaceSocketAddress>* Socket::ListInterfaces(
     int type,
     OSError** os_error) {
@@ -437,16 +501,156 @@
 }
 
 
+bool Socket::GetNoDelay(intptr_t fd, bool* enabled) {
+  SocketHandle* handle = reinterpret_cast<SocketHandle*>(fd);
+  int on;
+  socklen_t len = sizeof(on);
+  int err = getsockopt(handle->socket(),
+                       IPPROTO_TCP,
+                       TCP_NODELAY,
+                       reinterpret_cast<char *>(&on),
+                       &len);
+  if (err == 0) {
+    *enabled = on == 1;
+  }
+  return err == 0;
+}
+
+
 bool Socket::SetNoDelay(intptr_t fd, bool enabled) {
   SocketHandle* handle = reinterpret_cast<SocketHandle*>(fd);
   int on = enabled ? 1 : 0;
-  return setsockopt(fd,
+  return setsockopt(handle->socket(),
                     IPPROTO_TCP,
                     TCP_NODELAY,
                     reinterpret_cast<char *>(&on),
                     sizeof(on)) == 0;
 }
 
+
+bool Socket::GetMulticastLoop(intptr_t fd, intptr_t protocol, bool* enabled) {
+  SocketHandle* handle = reinterpret_cast<SocketHandle*>(fd);
+  uint8_t on;
+  socklen_t len = sizeof(on);
+  int level = protocol == SocketAddress::TYPE_IPV4 ? IPPROTO_IP : IPPROTO_IPV6;
+  int optname = protocol == SocketAddress::TYPE_IPV4
+      ? IP_MULTICAST_LOOP : IPV6_MULTICAST_LOOP;
+  if (getsockopt(handle->socket(),
+                 level,
+                 optname,
+                 reinterpret_cast<char *>(&on),
+                 &len) == 0) {
+    *enabled = (on == 1);
+    return true;
+  }
+  return false;
+}
+
+
+bool Socket::SetMulticastLoop(intptr_t fd, intptr_t protocol, bool enabled) {
+  SocketHandle* handle = reinterpret_cast<SocketHandle*>(fd);
+  int on = enabled ? 1 : 0;
+  int level = protocol == SocketAddress::TYPE_IPV4 ? IPPROTO_IP : IPPROTO_IPV6;
+  int optname = protocol == SocketAddress::TYPE_IPV4
+      ? IP_MULTICAST_LOOP : IPV6_MULTICAST_LOOP;
+  return setsockopt(handle->socket(),
+                    level,
+                    optname,
+                    reinterpret_cast<char *>(&on),
+                    sizeof(on)) == 0;
+  return false;
+}
+
+
+bool Socket::GetMulticastHops(intptr_t fd, intptr_t protocol, int* value) {
+  SocketHandle* handle = reinterpret_cast<SocketHandle*>(fd);
+  uint8_t v;
+  socklen_t len = sizeof(v);
+  int level = protocol == SocketAddress::TYPE_IPV4 ? IPPROTO_IP : IPPROTO_IPV6;
+  int optname = protocol == SocketAddress::TYPE_IPV4
+      ? IP_MULTICAST_TTL : IPV6_MULTICAST_HOPS;
+  if (getsockopt(handle->socket(),
+                 level,
+                 optname,
+                 reinterpret_cast<char *>(&v),
+                 &len) == 0) {
+    *value = v;
+    return true;
+  }
+  return false;
+}
+
+
+bool Socket::SetMulticastHops(intptr_t fd, intptr_t protocol, int value) {
+  SocketHandle* handle = reinterpret_cast<SocketHandle*>(fd);
+  int v = value;
+  int level = protocol == SocketAddress::TYPE_IPV4 ? IPPROTO_IP : IPPROTO_IPV6;
+  int optname = protocol == SocketAddress::TYPE_IPV4
+      ? IP_MULTICAST_TTL : IPV6_MULTICAST_HOPS;
+  return setsockopt(handle->socket(),
+                    level,
+                    optname,
+                    reinterpret_cast<char *>(&v),
+                    sizeof(v)) == 0;
+}
+
+
+bool Socket::GetBroadcast(intptr_t fd, bool* enabled) {
+  SocketHandle* handle = reinterpret_cast<SocketHandle*>(fd);
+  int on;
+  socklen_t len = sizeof(on);
+  int err = getsockopt(handle->socket(),
+                       SOL_SOCKET,
+                       SO_BROADCAST,
+                       reinterpret_cast<char *>(&on),
+                       &len);
+  if (err == 0) {
+    *enabled = on == 1;
+  }
+  return err == 0;
+}
+
+
+bool Socket::SetBroadcast(intptr_t fd, bool enabled) {
+  SocketHandle* handle = reinterpret_cast<SocketHandle*>(fd);
+  int on = enabled ? 1 : 0;
+  return setsockopt(handle->socket(),
+                    SOL_SOCKET,
+                    SO_BROADCAST,
+                    reinterpret_cast<char *>(&on),
+                    sizeof(on)) == 0;
+}
+
+
+bool Socket::JoinMulticast(
+    intptr_t fd, RawAddr* addr, RawAddr*, int interfaceIndex) {
+  SocketHandle* handle = reinterpret_cast<SocketHandle*>(fd);
+  int proto = addr->addr.sa_family == AF_INET ? IPPROTO_IP : IPPROTO_IPV6;
+  struct group_req mreq;
+  mreq.gr_interface = interfaceIndex;
+  memmove(&mreq.gr_group, &addr->ss, SocketAddress::GetAddrLength(addr));
+  return setsockopt(handle->socket(),
+                    proto,
+                    MCAST_JOIN_GROUP,
+                    reinterpret_cast<char *>(&mreq),
+                    sizeof(mreq)) == 0;
+}
+
+
+bool Socket::LeaveMulticast(
+    intptr_t fd, RawAddr* addr, RawAddr*, int interfaceIndex) {
+  SocketHandle* handle = reinterpret_cast<SocketHandle*>(fd);
+  int proto = addr->addr.sa_family == AF_INET ? IPPROTO_IP : IPPROTO_IPV6;
+  struct group_req mreq;
+  mreq.gr_interface = interfaceIndex;
+  memmove(&mreq.gr_group, &addr->ss, SocketAddress::GetAddrLength(addr));
+  return setsockopt(handle->socket(),
+                    proto,
+                    MCAST_LEAVE_GROUP,
+                    reinterpret_cast<char *>(&mreq),
+                    sizeof(mreq)) == 0;
+}
+
 }  // namespace bin
 }  // namespace dart
 
diff --git a/runtime/bin/stdin.cc b/runtime/bin/stdin.cc
index 5b21b5b..ef7904a 100644
--- a/runtime/bin/stdin.cc
+++ b/runtime/bin/stdin.cc
@@ -22,17 +22,25 @@
 }
 
 
+void FUNCTION_NAME(Stdin_GetEchoMode)(Dart_NativeArguments args) {
+  Dart_SetReturnValue(args, Dart_NewBoolean(Stdin::GetEchoMode()));
+}
+
+
 void FUNCTION_NAME(Stdin_SetEchoMode)(Dart_NativeArguments args) {
-  bool enabled = DartUtils::GetBooleanValue(Dart_GetNativeArgument(args, 1));
+  bool enabled = DartUtils::GetBooleanValue(Dart_GetNativeArgument(args, 0));
   Stdin::SetEchoMode(enabled);
-  Dart_SetReturnValue(args, Dart_Null());
+}
+
+
+void FUNCTION_NAME(Stdin_GetLineMode)(Dart_NativeArguments args) {
+  Dart_SetReturnValue(args, Dart_NewBoolean(Stdin::GetLineMode()));
 }
 
 
 void FUNCTION_NAME(Stdin_SetLineMode)(Dart_NativeArguments args) {
-  bool enabled = DartUtils::GetBooleanValue(Dart_GetNativeArgument(args, 1));
+  bool enabled = DartUtils::GetBooleanValue(Dart_GetNativeArgument(args, 0));
   Stdin::SetLineMode(enabled);
-  Dart_SetReturnValue(args, Dart_Null());
 }
 
 }  // namespace bin
diff --git a/runtime/bin/stdin.h b/runtime/bin/stdin.h
index 931e04f..a0c6875 100644
--- a/runtime/bin/stdin.h
+++ b/runtime/bin/stdin.h
@@ -17,7 +17,11 @@
 class Stdin {
  public:
   static int ReadByte();
+
+  static bool GetEchoMode();
   static void SetEchoMode(bool enabled);
+
+  static bool GetLineMode();
   static void SetLineMode(bool enabled);
 
  private:
diff --git a/runtime/bin/stdin_android.cc b/runtime/bin/stdin_android.cc
index 816023a..a1a4d63 100644
--- a/runtime/bin/stdin_android.cc
+++ b/runtime/bin/stdin_android.cc
@@ -25,6 +25,13 @@
 }
 
 
+bool Stdin::GetEchoMode() {
+  struct termios term;
+  tcgetattr(fileno(stdin), &term);
+  return (term.c_lflag & ECHO) != 0;
+}
+
+
 void Stdin::SetEchoMode(bool enabled) {
   struct termios term;
   tcgetattr(fileno(stdin), &term);
@@ -37,6 +44,13 @@
 }
 
 
+bool Stdin::GetLineMode() {
+  struct termios term;
+  tcgetattr(fileno(stdin), &term);
+  return (term.c_lflag & ICANON) != 0;
+}
+
+
 void Stdin::SetLineMode(bool enabled) {
   struct termios term;
   tcgetattr(fileno(stdin), &term);
diff --git a/runtime/bin/stdin_linux.cc b/runtime/bin/stdin_linux.cc
index 4f95198..c64610a 100644
--- a/runtime/bin/stdin_linux.cc
+++ b/runtime/bin/stdin_linux.cc
@@ -25,6 +25,13 @@
 }
 
 
+bool Stdin::GetEchoMode() {
+  struct termios term;
+  tcgetattr(fileno(stdin), &term);
+  return (term.c_lflag & ECHO) != 0;
+}
+
+
 void Stdin::SetEchoMode(bool enabled) {
   struct termios term;
   tcgetattr(fileno(stdin), &term);
@@ -37,6 +44,13 @@
 }
 
 
+bool Stdin::GetLineMode() {
+  struct termios term;
+  tcgetattr(fileno(stdin), &term);
+  return (term.c_lflag & ICANON) != 0;
+}
+
+
 void Stdin::SetLineMode(bool enabled) {
   struct termios term;
   tcgetattr(fileno(stdin), &term);
diff --git a/runtime/bin/stdin_macos.cc b/runtime/bin/stdin_macos.cc
index 0bea869..a8afb77 100644
--- a/runtime/bin/stdin_macos.cc
+++ b/runtime/bin/stdin_macos.cc
@@ -25,6 +25,13 @@
 }
 
 
+bool Stdin::GetEchoMode() {
+  struct termios term;
+  tcgetattr(fileno(stdin), &term);
+  return (term.c_lflag & ECHO) != 0;
+}
+
+
 void Stdin::SetEchoMode(bool enabled) {
   struct termios term;
   tcgetattr(fileno(stdin), &term);
@@ -37,6 +44,13 @@
 }
 
 
+bool Stdin::GetLineMode() {
+  struct termios term;
+  tcgetattr(fileno(stdin), &term);
+  return (term.c_lflag & ICANON) != 0;
+}
+
+
 void Stdin::SetLineMode(bool enabled) {
   struct termios term;
   tcgetattr(fileno(stdin), &term);
diff --git a/runtime/bin/stdin_win.cc b/runtime/bin/stdin_win.cc
index e1d036e..44e517d 100644
--- a/runtime/bin/stdin_win.cc
+++ b/runtime/bin/stdin_win.cc
@@ -23,6 +23,14 @@
 }
 
 
+bool Stdin::GetEchoMode() {
+  HANDLE h = GetStdHandle(STD_INPUT_HANDLE);
+  DWORD mode;
+  if (!GetConsoleMode(h, &mode)) return false;
+  return (mode & ENABLE_ECHO_INPUT) != 0;
+}
+
+
 void Stdin::SetEchoMode(bool enabled) {
   HANDLE h = GetStdHandle(STD_INPUT_HANDLE);
   DWORD mode;
@@ -36,6 +44,14 @@
 }
 
 
+bool Stdin::GetLineMode() {
+  HANDLE h = GetStdHandle(STD_INPUT_HANDLE);
+  DWORD mode;
+  if (!GetConsoleMode(h, &mode)) return false;
+  return (mode & ENABLE_LINE_INPUT) != 0;
+}
+
+
 void Stdin::SetLineMode(bool enabled) {
   HANDLE h = GetStdHandle(STD_INPUT_HANDLE);
   DWORD mode;
diff --git a/runtime/bin/stdio_patch.dart b/runtime/bin/stdio_patch.dart
index eb9aa68..5d5cdaf 100644
--- a/runtime/bin/stdio_patch.dart
+++ b/runtime/bin/stdio_patch.dart
@@ -41,8 +41,17 @@
 
 patch class Stdin {
   /* patch */ int readByteSync() native "Stdin_ReadByte";
-  /* patch */ void set echoMode(bool enabled) native "Stdin_SetEchoMode";
-  /* patch */ void set lineMode(bool enabled) native "Stdin_SetLineMode";
+
+  /* patch */ bool get echoMode => _echoMode;
+  /* patch */ void set echoMode(bool enabled) { _echoMode = enabled; }
+
+  /* patch */ bool get lineMode => _lineMode;
+  /* patch */ void set lineMode(bool enabled) { _lineMode = enabled; }
+
+  static bool get _echoMode native "Stdin_GetEchoMode";
+  static void set _echoMode(bool enabled) native "Stdin_SetEchoMode";
+  static bool get _lineMode native "Stdin_GetLineMode";
+  static void set _lineMode(bool enabled) native "Stdin_SetLineMode";
 }
 
 
diff --git a/runtime/bin/vmservice/client/build.dart b/runtime/bin/vmservice/client/build.dart
index 627da4e2..6b7d11f 100644
--- a/runtime/bin/vmservice/client/build.dart
+++ b/runtime/bin/vmservice/client/build.dart
@@ -11,23 +11,34 @@
     .then((_) => deploy()).then(compileToJs);
 }
 
-compileToJs(_) {
-  print("Running dart2js");
-  var dart_path = Platform.executable;
-  var dart2js_path = 'dart2js';
-  if (dart_path.lastIndexOf(Platform.pathSeparator) != -1) {
-    var bin_path = dart_path.substring(0, dart_path.lastIndexOf(Platform.pathSeparator));
-    dart2js_path = "$bin_path${Platform.pathSeparator}dart2js";
+String findDart2JS() {
+  var dartPath = Platform.executable;
+  var lastIndex = dartPath.lastIndexOf(Platform.pathSeparator);
+  if (lastIndex != -1) {
+    var binPath = dartPath.substring(0, lastIndex);
+    return '$binPath${Platform.pathSeparator}dart2js';
   }
+  return 'dart2js';
+}
+
+void runDart2JS(String input, String output) {
+  var dart2js_path = findDart2JS();
   var result =
     Process.runSync(dart2js_path,
-        [ '--minify', '-o', 'out/web/index.html_bootstrap.dart.js',
-        'out/web/index.html_bootstrap.dart'], runInShell: true);
+        [ '--minify', '-o', output, input], runInShell: true);
   print(result.stdout);
   print(result.stderr);
   if (result.exitCode != 0) {
     print("Running dart2js failed.");
     exit(result.exitCode);
   }
+}
+
+compileToJs(_) {
+  print("Running dart2js");
+  runDart2JS('out/web/index.html_bootstrap.dart',
+             'out/web/index.html_bootstrap.dart.js');
+  runDart2JS('out/web/index_devtools.html_bootstrap.dart',
+             'out/web/index_devtools.html_bootstrap.dart.js');
   print("Done");
 }
diff --git a/runtime/bin/vmservice/client/deployed/web/index.html b/runtime/bin/vmservice/client/deployed/web/index.html
index 94b6cc8..a0437be 100644
--- a/runtime/bin/vmservice/client/deployed/web/index.html
+++ b/runtime/bin/vmservice/client/deployed/web/index.html
@@ -30,18 +30,45 @@
     </div>
   </template>
   
-</polymer-element><polymer-element name="class-view" extends="observatory-element">
+</polymer-element><polymer-element name="field-ref" extends="observatory-element">
+<template>
+<div>
+  <template if="{{ field['final'] }}"> final </template>
+  <template if="{{ field['const'] }}"> const </template>
+  <template if="{{ (field['declared_type']['name'] == 'dynamic' &amp;&amp; !field['final'] &amp;&amp; !field['const']) }}">
+  var
+  </template>
+  <template if="{{ (field['declared_type']['name'] != 'dynamic') }}">
+  <a href="{{ app.locationManager.currentIsolateClassLink(field['declared_type']['id']) }}">
+    {{ field['declared_type']['user_name'] }} </a>
+  </template>
+  <a href="{{ app.locationManager.currentIsolateObjectLink(field['id'])}}">
+    {{ field['user_name'] }} </a>
+</div>
+</template>  </polymer-element><polymer-element name="instance-ref" extends="observatory-element">
+<template>
+<div>
+  <template if="{{ (instance['type'] == 'null') }}">
+    {{ "null" }}
+  </template>
+  <template if="{{ (instance['type'] != 'null') }}">
+  <a href="{{ app.locationManager.currentIsolateObjectLink(instance['id'])}}">
+    {{ instance['preview'] }}
+  </a>
+  </template>
+ </div>
+</template>  </polymer-element><polymer-element name="class-view" extends="observatory-element">
   <template>
     <div class="row">
     <div class="col-md-8 col-md-offset-2">
       <div class="panel panel-warning">
         <div class="panel-heading">
-          {{ cls['user_name'] }} ({{ cls['name'] }}) 
+          class <strong>{{ cls['user_name'] }}</strong>
           <template if="{{ cls['super']['type'] != 'Null' }}">
             extends
             <a href="{{ app.locationManager.currentIsolateClassLink(cls['super']['id'])}}">
               {{ cls['super']['user_name'] }}
-            </a> 
+            </a>
           </template>
           <a class="pull-right" href="{{ app.locationManager.currentIsolateObjectLink(cls['library']['id'])}}">
             {{ cls['library']['name'] }}
@@ -65,21 +92,18 @@
               <tr>
                 <td>Patch</td><td>{{ cls['patch'] }}</td>
               </tr>
+              <tr>
+                <td>VM Name</td><td>{{ cls['name'] }}</td>
+              </tr>
             </tbody>
           </table>
           <template if="{{ cls['error'] == null }}">
             <blockquote><strong>Fields</strong></blockquote>
             <table class="table table-hover">
-              <thead>
-                <tr>
-                  <th>User Name</th>
-                  <th>VM Name</th>
-                </tr>
-              </thead>
-              <tbody>
+             <tbody>
                 <tr template="" repeat="{{ field in cls['fields'] }}">
-                  <td><a href="{{ app.locationManager.currentIsolateObjectLink(field['id'])}}">{{ field['user_name'] }}</a></td>
-                  <td><a href="{{ app.locationManager.currentIsolateObjectLink(field['id'])}}">{{ field['name'] }}</a></td>
+                  <td><field-ref app="{{ app }}" field="{{ field }}"></field-ref></td>
+                  <td><instance-ref app="{{ app }}" instance="{{ field['value'] }}"></instance-ref></td>                  
                 </tr>
               </tbody>
             </table>
@@ -108,8 +132,7 @@
     </div>
   </template>
   
-</polymer-element>
-<polymer-element name="disassembly-entry" extends="observatory-element">
+</polymer-element><polymer-element name="disassembly-entry" extends="observatory-element">
   <template>
   <div class="row">
     <template if="{{ instruction['type'] == 'DisassembledInstructionComment' }}">
@@ -261,7 +284,7 @@
   <template>
   	<div class="row">
   	  <div class="col-md-1">
-  	  	<img src="img/isolate_icon.png" class="img-polaroid">	
+  	  	<img src="packages/observatory/src/observatory_elements/img/isolate_icon.png" class="img-polaroid">	
   	  </div>
   	  <div class="col-md-1">{{ isolate }}</div>
   	  <div class="col-md-10">{{ name }}</div>
@@ -289,6 +312,45 @@
       </ul>
   </template>
   
+</polymer-element><polymer-element name="instance-view" extends="observatory-element">
+  <template>
+    <div class="row">
+    <div class="col-md-8 col-md-offset-2">
+      <div class="panel panel-warning">   
+        <div class="panel-heading">
+         Instance of
+         <a href="{{ app.locationManager.currentIsolateClassLink(instance['class']['id'])}}">
+            {{ instance['class']['user_name'] }}
+         </a>
+        </div>
+        <div class="panel-body">
+          <template if="{{ instance['error'] == null }}">
+            <table class="table table-hover">
+              <tbody>
+                <tr>
+                  <td>Preview</td><td>{{ instance['preview'] }}</td>
+                </tr>
+              </tbody>
+            </table>
+            <blockquote><strong>Fields</strong></blockquote>
+            <table class="table table-hover">
+             <tbody>
+                <tr template="" repeat="{{ field in instance['fields'] }}">
+                  <td><field-ref app="{{ app }}" field="{{ field }}"></field-ref></td>
+                  <td><instance-ref app="{{ app }}" instance="{{ field['value'] }}"></instance-ref></td>              
+                </tr>
+              </tbody>
+            </table>
+          </template>
+          <template if="{{ instance['error'] != null }}">
+            <error-view error_obj="{{ instance['error'] }}"></error-view>
+          </template>
+        </div>
+      </div>
+    </div>
+    </div>
+  </template>
+  
 </polymer-element><polymer-element name="json-view" extends="observatory-element">
   <template>
     <template bind="" if="{{ valueType == 'Primitive' }}">
@@ -318,8 +380,7 @@
     </template>
   </template>
   
-</polymer-element>
-<polymer-element name="library-view" extends="observatory-element">
+</polymer-element><polymer-element name="library-view" extends="observatory-element">
   <template>
   <div class="alert alert-success">Library {{ library['name'] }}</div>
   <div class="alert alert-info">Scripts</div>
@@ -351,35 +412,8 @@
   <table class="table table-hover">
     <tbody>
       <tr template="" repeat="{{ variable in library['variables'] }}">
-        <td>
-          <template if="{{ variable['final'] }}">
-            final
-          </template>
-          <template if="{{ variable['const'] }}">
-            const
-          </template>
-          <template if="{{ (variable['declared_type']['name'] == 'dynamic' &amp;&amp; !variable['final'] &amp;&amp; !variable['const']) }}">
-            var
-          </template>
-          <template if="{{ (variable['declared_type']['name'] != 'dynamic') }}">
-            <a href="{{ app.locationManager.currentIsolateClassLink(variable['declared_type']['id']) }}">
-              {{ variable['declared_type']['user_name'] }}
-            </a>
-          </template>
-          <a href="{{ app.locationManager.currentIsolateObjectLink(variable['id'])}}">
-            {{ variable['user_name'] }}
-          </a>
-        </td>
-        <td>
-          <template if="{{ (variable['value']['type'] == 'null') }}">
-            {{ "null" }}
-          </template>
-          <template if="{{ (variable['value']['type'] != 'null') }}">
-            <a href="{{ app.locationManager.currentIsolateObjectLink(variable['value']['id'])}}">
-              {{ variable['value']['preview'] }}
-            </a>
-          </template>
-        </td>
+        <td><field-ref app="{{ app }}" field="{{ variable }}"></field-ref></td>
+        <td><instance-ref app="{{ app }}" instance="{{ variable['value'] }}"></instance-ref></td>
       </tr>
     </tbody>
   </table>
@@ -493,6 +527,24 @@
     <template if="{{ messageType == 'Field' }}">
       <field-view app="{{ app }}" field="{{ message }}"></field-view>
     </template>
+    <template if="{{ messageType == 'Instance' }}">
+      <instance-view app="{{ app }}" instance="{{ message }}"></instance-view>
+    </template>
+    <template if="{{ messageType == 'Array' }}">
+      <instance-view app="{{ app }}" instance="{{ message }}"></instance-view>
+    </template>
+    <template if="{{ messageType == 'GrowableObjectArray' }}">
+      <instance-view app="{{ app }}" instance="{{ message }}"></instance-view>
+    </template>
+    <template if="{{ messageType == 'String' }}">
+      <instance-view app="{{ app }}" instance="{{ message }}"></instance-view>
+    </template>
+    <template if="{{ messageType == 'Bool' }}">
+      <instance-view app="{{ app }}" instance="{{ message }}"></instance-view>
+    </template>
+    <template if="{{ messageType == 'Smi' }}">
+      <instance-view app="{{ app }}" instance="{{ message }}"></instance-view>
+    </template>
     <template if="{{ messageType == 'Function' }}">
       <function-view app="{{ app }}" function="{{ message }}"></function-view>
     </template>
@@ -536,4 +588,4 @@
 </polymer-element>
   <observatory-application></observatory-application>
 
-</body></html>
+</body></html>
\ No newline at end of file
diff --git a/runtime/bin/vmservice/client/deployed/web/index.html_bootstrap.dart.js b/runtime/bin/vmservice/client/deployed/web/index.html_bootstrap.dart.js
index f571390..a67ecba 100644
--- a/runtime/bin/vmservice/client/deployed/web/index.html_bootstrap.dart.js
+++ b/runtime/bin/vmservice/client/deployed/web/index.html_bootstrap.dart.js
@@ -904,35 +904,36 @@
   // every PathObserver used by defineProperty share a single Object.observe
   // callback, and thus get() can simply call observer.deliver() and any changes
   // to any dependent value will be observed.
-  PathObserver.defineProperty = function(target, name, object, path) {
+  PathObserver.defineProperty = function(object, name, descriptor) {
     // TODO(rafaelw): Validate errors
-    path = getPath(path);
-    var notify = notifyFunction(target, name);
+    var obj = descriptor.object;
+    var path = getPath(descriptor.path);
+    var notify = notifyFunction(object, name);
 
-    var observer = new PathObserver(object, path,
+    var observer = new PathObserver(obj, descriptor.path,
         function(newValue, oldValue) {
           if (notify)
             notify(PROP_UPDATE_TYPE, oldValue);
         }
     );
 
-    Object.defineProperty(target, name, {
+    Object.defineProperty(object, name, {
       get: function() {
-        return path.getValueFrom(object);
+        return path.getValueFrom(obj);
       },
       set: function(newValue) {
-        path.setValueFrom(object, newValue);
+        path.setValueFrom(obj, newValue);
       },
       configurable: true
     });
 
     return {
       close: function() {
-        var oldValue = path.getValueFrom(object);
+        var oldValue = path.getValueFrom(obj);
         if (notify)
           observer.deliver();
         observer.close();
-        Object.defineProperty(target, name, {
+        Object.defineProperty(object, name, {
           value: oldValue,
           writable: true,
           configurable: true
@@ -1418,7 +1419,7 @@
     'delete': PROP_DELETE_TYPE,
     splice: ARRAY_SPLICE_TYPE
   };
-})(typeof global !== 'undefined' && global ? global : this || window);
+})(typeof global !== 'undefined' && global ? global : this);
 
 /*
  * Copyright 2012 The Polymer Authors. All rights reserved.
@@ -1461,7 +1462,7 @@
 // Use of this source code is goverened by a BSD-style
 // license that can be found in the LICENSE file.
 
-window.ShadowDOMPolyfill = {};
+var ShadowDOMPolyfill = {};
 
 (function(scope) {
   'use strict';
@@ -1489,19 +1490,16 @@
       throw new Error('Assertion failed');
   };
 
-  var defineProperty = Object.defineProperty;
-  var getOwnPropertyNames = Object.getOwnPropertyNames;
-  var getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;
-
   function mixin(to, from) {
-    getOwnPropertyNames(from).forEach(function(name) {
-      defineProperty(to, name, getOwnPropertyDescriptor(from, name));
+    Object.getOwnPropertyNames(from).forEach(function(name) {
+      Object.defineProperty(to, name,
+                            Object.getOwnPropertyDescriptor(from, name));
     });
     return to;
   };
 
   function mixinStatics(to, from) {
-    getOwnPropertyNames(from).forEach(function(name) {
+    Object.getOwnPropertyNames(from).forEach(function(name) {
       switch (name) {
         case 'arguments':
         case 'caller':
@@ -1511,7 +1509,8 @@
         case 'toString':
           return;
       }
-      defineProperty(to, name, getOwnPropertyDescriptor(from, name));
+      Object.defineProperty(to, name,
+                            Object.getOwnPropertyDescriptor(from, name));
     });
     return to;
   };
@@ -1526,7 +1525,7 @@
   // Mozilla's old DOM bindings are bretty busted:
   // https://bugzilla.mozilla.org/show_bug.cgi?id=855844
   // Make sure they are create before we start modifying things.
-  getOwnPropertyNames(window);
+  Object.getOwnPropertyNames(window);
 
   function getWrapperConstructor(node) {
     var nativePrototype = node.__proto__ || Object.getPrototypeOf(node);
@@ -1588,39 +1587,28 @@
         function() { return this.impl[name].apply(this.impl, arguments); };
   }
 
-  function getDescriptor(source, name) {
-    try {
-      return Object.getOwnPropertyDescriptor(source, name);
-    } catch (ex) {
-      // JSC and V8 both use data properties instead of accessors which can
-      // cause getting the property desciptor to throw an exception.
-      // https://bugs.webkit.org/show_bug.cgi?id=49739
-      return dummyDescriptor;
-    }
-  }
-
-  function installProperty(source, target, allowMethod, opt_blacklist) {
-    var names = getOwnPropertyNames(source);
-    for (var i = 0; i < names.length; i++) {
-      var name = names[i];
-      if (name === 'polymerBlackList_')
-        continue;
-
+  function installProperty(source, target, allowMethod) {
+    Object.getOwnPropertyNames(source).forEach(function(name) {
       if (name in target)
-        continue;
-
-      if (source.polymerBlackList_ && source.polymerBlackList_[name])
-        continue;
+        return;
 
       if (isFirefox) {
         // Tickle Firefox's old bindings.
         source.__lookupGetter__(name);
       }
-      var descriptor = getDescriptor(source, name);
+      var descriptor;
+      try {
+        descriptor = Object.getOwnPropertyDescriptor(source, name);
+      } catch (ex) {
+        // JSC and V8 both use data properties instead of accessors which can
+        // cause getting the property desciptor to throw an exception.
+        // https://bugs.webkit.org/show_bug.cgi?id=49739
+        descriptor = dummyDescriptor;
+      }
       var getter, setter;
       if (allowMethod && typeof descriptor.value === 'function') {
         target[name] = getMethod(name);
-        continue;
+        return;
       }
 
       var isEvent = isEventHandlerName(name);
@@ -1636,13 +1624,13 @@
           setter = getSetter(name);
       }
 
-      defineProperty(target, name, {
+      Object.defineProperty(target, name, {
         get: getter,
         set: setter,
         configurable: descriptor.configurable,
         enumerable: descriptor.enumerable
       });
-    }
+    });
   }
 
   /**
@@ -1667,12 +1655,6 @@
     addForwardingProperties(nativePrototype, wrapperPrototype);
     if (opt_instance)
       registerInstanceProperties(wrapperPrototype, opt_instance);
-    defineProperty(wrapperPrototype, 'constructor', {
-      value: wrapperConstructor,
-      configurable: true,
-      enumerable: false,
-      writable: true
-    });
   }
 
   function isWrapperFor(wrapperConstructor, nativeConstructor) {
@@ -1683,7 +1665,11 @@
   /**
    * Creates a generic wrapper constructor based on |object| and its
    * constructor.
+   * Sometimes the constructor does not have an associated instance
+   * (CharacterData for example). In that case you can pass the constructor that
+   * you want to map the object to using |opt_nativeConstructor|.
    * @param {Node} object
+   * @param {Function=} opt_nativeConstructor
    * @return {Function} The generated constructor.
    */
   function registerObject(object) {
@@ -1796,7 +1782,7 @@
   }
 
   function defineGetter(constructor, name, getter) {
-    defineProperty(constructor.prototype, name, {
+    Object.defineProperty(constructor.prototype, name, {
       get: getter,
       configurable: true,
       enumerable: true
@@ -1845,430 +1831,7 @@
   scope.wrapIfNeeded = wrapIfNeeded;
   scope.wrappers = wrappers;
 
-})(window.ShadowDOMPolyfill);
-
-/*
- * Copyright 2013 The Polymer Authors. All rights reserved.
- * Use of this source code is goverened by a BSD-style
- * license that can be found in the LICENSE file.
- */
-
-(function(context) {
-  'use strict';
-
-  var OriginalMutationObserver = window.MutationObserver;
-  var callbacks = [];
-  var pending = false;
-  var timerFunc;
-
-  function handle() {
-    pending = false;
-    var copies = callbacks.slice(0);
-    callbacks = [];
-    for (var i = 0; i < copies.length; i++) {
-      (0, copies[i])();
-    }
-  }
-
-  if (OriginalMutationObserver) {
-    var counter = 1;
-    var observer = new OriginalMutationObserver(handle);
-    var textNode = document.createTextNode(counter);
-    observer.observe(textNode, {characterData: true});
-
-    timerFunc = function() {
-      counter = (counter + 1) % 2;
-      textNode.data = counter;
-    };
-
-  } else {
-    timerFunc = window.setImmediate || window.setTimeout;
-  }
-
-  function setEndOfMicrotask(func) {
-    callbacks.push(func);
-    if (pending)
-      return;
-    pending = true;
-    timerFunc(handle, 0);
-  }
-
-  context.setEndOfMicrotask = setEndOfMicrotask;
-
-})(window.ShadowDOMPolyfill);
-
-/*
- * Copyright 2013 The Polymer Authors. All rights reserved.
- * Use of this source code is goverened by a BSD-style
- * license that can be found in the LICENSE file.
- */
-
-(function(scope) {
-  'use strict';
-
-  var setEndOfMicrotask = scope.setEndOfMicrotask
-  var wrapIfNeeded = scope.wrapIfNeeded
-  var wrappers = scope.wrappers;
-
-  var registrationsTable = new WeakMap();
-  var globalMutationObservers = [];
-  var isScheduled = false;
-
-  function scheduleCallback(observer) {
-    if (isScheduled)
-      return;
-    setEndOfMicrotask(notifyObservers);
-    isScheduled = true;
-  }
-
-  // http://dom.spec.whatwg.org/#mutation-observers
-  function notifyObservers() {
-    isScheduled = false;
-
-    do {
-      var notifyList = globalMutationObservers.slice();
-      var anyNonEmpty = false;
-      for (var i = 0; i < notifyList.length; i++) {
-        var mo = notifyList[i];
-        var queue = mo.takeRecords();
-        removeTransientObserversFor(mo);
-        if (queue.length) {
-          mo.callback_(queue, mo);
-          anyNonEmpty = true;
-        }
-      }
-    } while (anyNonEmpty);
-  }
-
-  /**
-   * @param {string} type
-   * @param {Node} target
-   * @constructor
-   */
-  function MutationRecord(type, target) {
-    this.type = type;
-    this.target = target;
-    this.addedNodes = new wrappers.NodeList();
-    this.removedNodes = new wrappers.NodeList();
-    this.previousSibling = null;
-    this.nextSibling = null;
-    this.attributeName = null;
-    this.attributeNamespace = null;
-    this.oldValue = null;
-  }
-
-  /**
-   * Registers transient observers to ancestor and its ancesors for the node
-   * which was removed.
-   * @param {!Node} ancestor
-   * @param {!Node} node
-   */
-  function registerTransientObservers(ancestor, node) {
-    for (; ancestor; ancestor = ancestor.parentNode) {
-      var registrations = registrationsTable.get(ancestor);
-      if (!registrations)
-        continue;
-      for (var i = 0; i < registrations.length; i++) {
-        var registration = registrations[i];
-        if (registration.options.subtree)
-          registration.addTransientObserver(node);
-      }
-    }
-  }
-
-  function removeTransientObserversFor(observer) {
-    for (var i = 0; i < observer.nodes_.length; i++) {
-      var node = observer.nodes_[i];
-      var registrations = registrationsTable.get(node);
-      if (!registrations)
-        return;
-      for (var j = 0; j < registrations.length; j++) {
-        var registration = registrations[j];
-        if (registration.observer === observer)
-          registration.removeTransientObservers();
-      }
-    }
-  }
-
-  // http://dom.spec.whatwg.org/#queue-a-mutation-record
-  function enqueueMutation(target, type, data) {
-    // 1.
-    var interestedObservers = Object.create(null);
-    var associatedStrings = Object.create(null);
-
-    // 2.
-    for (var node = target; node; node = node.parentNode) {
-      // 3.
-      var registrations = registrationsTable.get(node);
-      if (!registrations)
-        continue;
-      for (var j = 0; j < registrations.length; j++) {
-        var registration = registrations[j];
-        var options = registration.options;
-        // 1.
-        if (node !== target && !options.subtree)
-          continue;
-
-        // 2.
-        if (type === 'attributes' && !options.attributes)
-          continue;
-
-        // 3. If type is "attributes", options's attributeFilter is present, and
-        // either options's attributeFilter does not contain name or namespace
-        // is non-null, continue.
-        if (type === 'attributes' && options.attributeFilter &&
-            (data.namespace !== null ||
-             options.attributeFilter.indexOf(data.name) === -1)) {
-          continue;
-        }
-
-        // 4.
-        if (type === 'characterData' && !options.characterData)
-          continue;
-
-        // 5.
-        if (type === 'childList' && !options.childList)
-          continue;
-
-        // 6.
-        var observer = registration.observer;
-        interestedObservers[observer.uid_] = observer;
-
-        // 7. If either type is "attributes" and options's attributeOldValue is
-        // true, or type is "characterData" and options's characterDataOldValue
-        // is true, set the paired string of registered observer's observer in
-        // interested observers to oldValue.
-        if (type === 'attributes' && options.attributeOldValue ||
-            type === 'characterData' && options.characterDataOldValue) {
-          associatedStrings[observer.uid_] = data.oldValue;
-        }
-      }
-    }
-
-    var anyRecordsEnqueued = false;
-
-    // 4.
-    for (var uid in interestedObservers) {
-      var observer = interestedObservers[uid];
-      var record = new MutationRecord(type, target);
-
-      // 2.
-      if ('name' in data && 'namespace' in data) {
-        record.attributeName = data.name;
-        record.attributeNamespace = data.namespace;
-      }
-
-      // 3.
-      if (data.addedNodes)
-        record.addedNodes = data.addedNodes;
-
-      // 4.
-      if (data.removedNodes)
-        record.removedNodes = data.removedNodes;
-
-      // 5.
-      if (data.previousSibling)
-        record.previousSibling = data.previousSibling;
-
-      // 6.
-      if (data.nextSibling)
-        record.nextSibling = data.nextSibling;
-
-      // 7.
-      if (associatedStrings[uid] !== undefined)
-        record.oldValue = associatedStrings[uid];
-
-      // 8.
-      observer.records_.push(record);
-
-      anyRecordsEnqueued = true;
-    }
-
-    if (anyRecordsEnqueued)
-      scheduleCallback();
-  }
-
-  var slice = Array.prototype.slice;
-
-  /**
-   * @param {!Object} options
-   * @constructor
-   */
-  function MutationObserverOptions(options) {
-    this.childList = !!options.childList;
-    this.subtree = !!options.subtree;
-
-    // 1. If either options' attributeOldValue or attributeFilter is present
-    // and options' attributes is omitted, set options' attributes to true.
-    if (!('attributes' in options) &&
-        ('attributeOldValue' in options || 'attributeFilter' in options)) {
-      this.attributes = true;
-    } else {
-      this.attributes = !!options.attributes;
-    }
-
-    // 2. If options' characterDataOldValue is present and options'
-    // characterData is omitted, set options' characterData to true.
-    if ('characterDataOldValue' in options && !('characterData' in options))
-      this.characterData = true;
-    else
-      this.characterData = !!options.characterData;
-
-    // 3. & 4.
-    if (!this.attributes &&
-        (options.attributeOldValue || 'attributeFilter' in options) ||
-        // 5.
-        !this.characterData && options.characterDataOldValue) {
-      throw new TypeError();
-    }
-
-    this.characterData = !!options.characterData;
-    this.attributeOldValue = !!options.attributeOldValue;
-    this.characterDataOldValue = !!options.characterDataOldValue;
-    if ('attributeFilter' in options) {
-      if (options.attributeFilter == null ||
-          typeof options.attributeFilter !== 'object') {
-        throw new TypeError();
-      }
-      this.attributeFilter = slice.call(options.attributeFilter);
-    } else {
-      this.attributeFilter = null;
-    }
-  }
-
-  var uidCounter = 0;
-
-  /**
-   * The class that maps to the DOM MutationObserver interface.
-   * @param {Function} callback.
-   * @constructor
-   */
-  function MutationObserver(callback) {
-    this.callback_ = callback;
-    this.nodes_ = [];
-    this.records_ = [];
-    this.uid_ = ++uidCounter;
-
-    // This will leak. There is no way to implement this without WeakRefs :'(
-    globalMutationObservers.push(this);
-  }
-
-  MutationObserver.prototype = {
-    // http://dom.spec.whatwg.org/#dom-mutationobserver-observe
-    observe: function(target, options) {
-      target = wrapIfNeeded(target);
-
-      var newOptions = new MutationObserverOptions(options);
-
-      // 6.
-      var registration;
-      var registrations = registrationsTable.get(target);
-      if (!registrations)
-        registrationsTable.set(target, registrations = []);
-
-      for (var i = 0; i < registrations.length; i++) {
-        if (registrations[i].observer === this) {
-          registration = registrations[i];
-          // 6.1.
-          registration.removeTransientObservers();
-          // 6.2.
-          registration.options = newOptions;
-        }
-      }
-
-      // 7.
-      if (!registration) {
-        registration = new Registration(this, target, newOptions);
-        registrations.push(registration);
-        this.nodes_.push(target);
-      }
-    },
-
-    // http://dom.spec.whatwg.org/#dom-mutationobserver-disconnect
-    disconnect: function() {
-      this.nodes_.forEach(function(node) {
-        var registrations = registrationsTable.get(node);
-        for (var i = 0; i < registrations.length; i++) {
-          var registration = registrations[i];
-          if (registration.observer === this) {
-            registrations.splice(i, 1);
-            // Each node can only have one registered observer associated with
-            // this observer.
-            break;
-          }
-        }
-      }, this);
-      this.records_ = [];
-    },
-
-    takeRecords: function() {
-      var copyOfRecords = this.records_;
-      this.records_ = [];
-      return copyOfRecords;
-    }
-  };
-
-  /**
-   * Class used to represent a registered observer.
-   * @param {MutationObserver} observer
-   * @param {Node} target
-   * @param {MutationObserverOptions} options
-   * @constructor
-   */
-  function Registration(observer, target, options) {
-    this.observer = observer;
-    this.target = target;
-    this.options = options;
-    this.transientObservedNodes = [];
-  }
-
-  Registration.prototype = {
-    /**
-     * Adds a transient observer on node. The transient observer gets removed
-     * next time we deliver the change records.
-     * @param {Node} node
-     */
-    addTransientObserver: function(node) {
-      // Don't add transient observers on the target itself. We already have all
-      // the required listeners set up on the target.
-      if (node === this.target)
-        return;
-
-      this.transientObservedNodes.push(node);
-      var registrations = registrationsTable.get(node);
-      if (!registrations)
-        registrationsTable.set(node, registrations = []);
-
-      // We know that registrations does not contain this because we already
-      // checked if node === this.target.
-      registrations.push(this);
-    },
-
-    removeTransientObservers: function() {
-      var transientObservedNodes = this.transientObservedNodes;
-      this.transientObservedNodes = [];
-
-      for (var i = 0; i < transientObservedNodes.length; i++) {
-        var node = transientObservedNodes[i];
-        var registrations = registrationsTable.get(node);
-        for (var j = 0; j < registrations.length; j++) {
-          if (registrations[j] === this) {
-            registrations.splice(j, 1);
-            // Each node can only have one registered observer associated with
-            // this observer.
-            break;
-          }
-        }
-      }
-    }
-  };
-
-  scope.enqueueMutation = enqueueMutation;
-  scope.registerTransientObservers = registerTransientObservers;
-  scope.wrappers.MutationObserver = MutationObserver;
-  scope.wrappers.MutationRecord = MutationRecord;
-
-})(window.ShadowDOMPolyfill);
+})(this.ShadowDOMPolyfill);
 
 // Copyright 2013 The Polymer Authors. All rights reserved.
 // Use of this source code is goverened by a BSD-style
@@ -2451,6 +2014,17 @@
     return false;
   }
 
+  var mutationEventsAreSilenced = 0;
+
+  function muteMutationEvents() {
+    mutationEventsAreSilenced++;
+  }
+
+  function unmuteMutationEvents() {
+    mutationEventsAreSilenced--;
+  }
+
+  var OriginalMutationEvent = window.MutationEvent;
 
   function dispatchOriginalEvent(originalEvent) {
     // Make sure this event is only dispatched once.
@@ -2458,9 +2032,15 @@
       return;
     handledEventsTable.set(originalEvent, true);
 
-    // Render before dispatching the event to ensure that the event path is
-    // correct.
-    scope.renderAllPending();
+    // Don't do rendering if this is a mutation event since rendering might
+    // mutate the DOM which would fire more events and we would most likely
+    // just iloop.
+    if (originalEvent instanceof OriginalMutationEvent) {
+      if (mutationEventsAreSilenced)
+        return;
+    } else {
+      scope.renderAllPending();
+    }
 
     var target = wrap(originalEvent.target);
     var event = wrap(originalEvent);
@@ -2630,7 +2210,6 @@
   };
 
   var OriginalEvent = window.Event;
-  OriginalEvent.prototype.polymerBlackList_ = {returnValue: true};
 
   /**
    * Creates a new Event wrapper or wraps an existin native Event object.
@@ -2746,6 +2325,13 @@
   var MouseEvent = registerGenericEvent('MouseEvent', UIEvent, mouseEventProto);
   var FocusEvent = registerGenericEvent('FocusEvent', UIEvent, focusEventProto);
 
+  var MutationEvent = registerGenericEvent('MutationEvent', Event, {
+    initMutationEvent: getInitFunction('initMutationEvent', 3),
+    get relatedNode() {
+      return wrap(this.impl.relatedNode);
+    },
+  });
+
   // In case the browser does not support event constructors we polyfill that
   // by calling `createEvent('Foo')` and `initFooEvent` where the arguments to
   // `initFooEvent` are derived from the registered default event init dict.
@@ -2812,41 +2398,12 @@
     configureEventConstructor('FocusEvent', {relatedTarget: null}, 'UIEvent');
   }
 
-  function BeforeUnloadEvent(impl) {
-    Event.call(this);
-  }
-  BeforeUnloadEvent.prototype = Object.create(Event.prototype);
-  mixin(BeforeUnloadEvent.prototype, {
-    get returnValue() {
-      return this.impl.returnValue;
-    },
-    set returnValue(v) {
-      this.impl.returnValue = v;
-    }
-  });
-
   function isValidListener(fun) {
     if (typeof fun === 'function')
       return true;
     return fun && fun.handleEvent;
   }
 
-  function isMutationEvent(type) {
-    switch (type) {
-      case 'DOMAttrModified':
-      case 'DOMAttributeNameChanged':
-      case 'DOMCharacterDataModified':
-      case 'DOMElementNameChanged':
-      case 'DOMNodeInserted':
-      case 'DOMNodeInsertedIntoDocument':
-      case 'DOMNodeRemoved':
-      case 'DOMNodeRemovedFromDocument':
-      case 'DOMSubtreeModified':
-        return true;
-    }
-    return false;
-  }
-
   var OriginalEventTarget = window.EventTarget;
 
   /**
@@ -2881,7 +2438,7 @@
 
   EventTarget.prototype = {
     addEventListener: function(type, fun, capture) {
-      if (!isValidListener(fun) || isMutationEvent(type))
+      if (!isValidListener(fun))
         return;
 
       var listener = new Listener(type, fun, capture);
@@ -3011,16 +2568,18 @@
   scope.elementFromPoint = elementFromPoint;
   scope.getEventHandlerGetter = getEventHandlerGetter;
   scope.getEventHandlerSetter = getEventHandlerSetter;
+  scope.muteMutationEvents = muteMutationEvents;
+  scope.unmuteMutationEvents = unmuteMutationEvents;
   scope.wrapEventTargetMethods = wrapEventTargetMethods;
-  scope.wrappers.BeforeUnloadEvent = BeforeUnloadEvent;
   scope.wrappers.CustomEvent = CustomEvent;
   scope.wrappers.Event = Event;
   scope.wrappers.EventTarget = EventTarget;
   scope.wrappers.FocusEvent = FocusEvent;
   scope.wrappers.MouseEvent = MouseEvent;
+  scope.wrappers.MutationEvent = MutationEvent;
   scope.wrappers.UIEvent = UIEvent;
 
-})(window.ShadowDOMPolyfill);
+})(this.ShadowDOMPolyfill);
 
 // Copyright 2012 The Polymer Authors. All rights reserved.
 // Use of this source code is goverened by a BSD-style
@@ -3067,8 +2626,7 @@
   scope.addWrapNodeListMethod = addWrapNodeListMethod;
   scope.wrapNodeList = wrapNodeList;
 
-})(window.ShadowDOMPolyfill);
-
+})(this.ShadowDOMPolyfill);
 // Copyright 2012 The Polymer Authors. All rights reserved.
 // Use of this source code is goverened by a BSD-style
 // license that can be found in the LICENSE file.
@@ -3078,11 +2636,9 @@
 
   var EventTarget = scope.wrappers.EventTarget;
   var NodeList = scope.wrappers.NodeList;
-  var assert = scope.assert;
   var defineWrapGetter = scope.defineWrapGetter;
-  var enqueueMutation = scope.enqueueMutation;
+  var assert = scope.assert;
   var mixin = scope.mixin;
-  var registerTransientObservers = scope.registerTransientObservers;
   var registerWrapper = scope.registerWrapper;
   var unwrap = scope.unwrap;
   var wrap = scope.wrap;
@@ -3092,36 +2648,6 @@
     assert(node instanceof Node);
   }
 
-  function createOneElementNodeList(node) {
-    var nodes = new NodeList();
-    nodes[0] = node;
-    nodes.length = 1;
-    return nodes;
-  }
-
-  var surpressMutations = false;
-
-  /**
-   * Called before node is inserted into a node to enqueue its removal from its
-   * old parent.
-   * @param {!Node} node The node that is about to be removed.
-   * @param {!Node} parent The parent node that the node is being removed from.
-   * @param {!NodeList} nodes The collected nodes.
-   */
-  function enqueueRemovalForInsertedNodes(node, parent, nodes) {
-    enqueueMutation(parent, 'childList', {
-      removedNodes: nodes,
-      previousSibling: node.previousSibling,
-      nextSibling: node.nextSibling
-    });
-  }
-
-  function enqueueRemovalForInsertedDocumentFragment(df, nodes) {
-    enqueueMutation(df, 'childList', {
-      removedNodes: nodes
-    });
-  }
-
   /**
    * Collects nodes from a DocumentFragment or a Node for removal followed
    * by an insertion.
@@ -3129,95 +2655,60 @@
    * This updates the internal pointers for node, previousNode and nextNode.
    */
   function collectNodes(node, parentNode, previousNode, nextNode) {
-    if (node instanceof DocumentFragment) {
-      var nodes = collectNodesForDocumentFragment(node);
-
-      // The extra loop is to work around bugs with DocumentFragments in IE.
-      surpressMutations = true;
-      for (var i = nodes.length - 1; i >= 0; i--) {
-        node.removeChild(nodes[i]);
-        nodes[i].parentNode_ = parentNode;
-      }
-      surpressMutations = false;
-
-      for (var i = 0; i < nodes.length; i++) {
-        nodes[i].previousSibling_ = nodes[i - 1] || previousNode;
-        nodes[i].nextSibling_ = nodes[i + 1] || nextNode;
-      }
-
+    if (!(node instanceof DocumentFragment)) {
+      if (node.parentNode)
+        node.parentNode.removeChild(node);
+      node.parentNode_ = parentNode;
+      node.previousSibling_ = previousNode;
+      node.nextSibling_ = nextNode;
       if (previousNode)
-        previousNode.nextSibling_ = nodes[0];
+        previousNode.nextSibling_ = node;
       if (nextNode)
-        nextNode.previousSibling_ = nodes[nodes.length - 1];
+        nextNode.previousSibling_ = node;
+      return [node];
+    }
 
+    var nodes = [];
+    for (var child = node.firstChild; child; child = child.nextSibling) {
+      nodes.push(child);
+    }
+
+    for (var i = nodes.length - 1; i >= 0; i--) {
+      node.removeChild(nodes[i]);
+      nodes[i].parentNode_ = parentNode;
+    }
+
+    for (var i = 0; i < nodes.length; i++) {
+      nodes[i].previousSibling_ = nodes[i - 1] || previousNode;
+      nodes[i].nextSibling_ = nodes[i + 1] || nextNode;
+    }
+
+    if (previousNode)
+      previousNode.nextSibling_ = nodes[0];
+    if (nextNode)
+      nextNode.previousSibling_ = nodes[nodes.length - 1];
+
+    return nodes;
+  }
+
+  function collectNodesNoNeedToUpdatePointers(node) {
+    if (node instanceof DocumentFragment) {
+      var nodes = [];
+      var i = 0;
+      for (var child = node.firstChild; child; child = child.nextSibling) {
+        nodes[i++] = child;
+      }
       return nodes;
     }
-
-    var nodes = createOneElementNodeList(node);
-    var oldParent = node.parentNode;
-    if (oldParent) {
-      // This will enqueue the mutation record for the removal as needed.
-      oldParent.removeChild(node);
-    }
-
-    node.parentNode_ = parentNode;
-    node.previousSibling_ = previousNode;
-    node.nextSibling_ = nextNode;
-    if (previousNode)
-      previousNode.nextSibling_ = node;
-    if (nextNode)
-      nextNode.previousSibling_ = node;
-
-    return nodes;
-  }
-
-  function collectNodesNative(node) {
-    if (node instanceof DocumentFragment)
-      return collectNodesForDocumentFragment(node);
-
-    var nodes = createOneElementNodeList(node);
-    var oldParent = node.parentNode;
-    if (oldParent)
-      enqueueRemovalForInsertedNodes(node, oldParent, nodes);
-    return nodes;
-  }
-
-  function collectNodesForDocumentFragment(node) {
-    var nodes = new NodeList();
-    var i = 0;
-    for (var child = node.firstChild; child; child = child.nextSibling) {
-      nodes[i++] = child;
-    }
-    nodes.length = i;
-    enqueueRemovalForInsertedDocumentFragment(node, nodes);
-    return nodes;
-  }
-
-  function snapshotNodeList(nodeList) {
-    // NodeLists are not live at the moment so just return the same object.
-    return nodeList;
-  }
-
-  // http://dom.spec.whatwg.org/#node-is-inserted
-  function nodeWasAdded(node) {
-    node.nodeIsInserted_();
+    return [node];
   }
 
   function nodesWereAdded(nodes) {
     for (var i = 0; i < nodes.length; i++) {
-      nodeWasAdded(nodes[i]);
+      nodes[i].nodeWasAdded_();
     }
   }
 
-  // http://dom.spec.whatwg.org/#node-is-removed
-  function nodeWasRemoved(node) {
-    // Nothing at this point in time.
-  }
-
-  function nodesWereRemoved(nodes) {
-    // Nothing at this point in time.
-  }
-
   function ensureSameOwnerDocument(parent, child) {
     var ownerDoc = parent.nodeType === Node.DOCUMENT_NODE ?
         parent : parent.ownerDocument;
@@ -3360,56 +2851,69 @@
   Node.prototype = Object.create(EventTarget.prototype);
   mixin(Node.prototype, {
     appendChild: function(childWrapper) {
-      return this.insertBefore(childWrapper, null);
+      assertIsNodeWrapper(childWrapper);
+
+      var nodes;
+
+      if (this.invalidateShadowRenderer() || invalidateParent(childWrapper)) {
+        var previousNode = this.lastChild;
+        var nextNode = null;
+        nodes = collectNodes(childWrapper, this, previousNode, nextNode);
+
+        this.lastChild_ = nodes[nodes.length - 1];
+        if (!previousNode)
+          this.firstChild_ = nodes[0];
+
+        originalAppendChild.call(this.impl, unwrapNodesForInsertion(this, nodes));
+      } else {
+        nodes = collectNodesNoNeedToUpdatePointers(childWrapper)
+        ensureSameOwnerDocument(this, childWrapper);
+        originalAppendChild.call(this.impl, unwrap(childWrapper));
+      }
+
+      nodesWereAdded(nodes);
+
+      return childWrapper;
     },
 
     insertBefore: function(childWrapper, refWrapper) {
-      assertIsNodeWrapper(childWrapper);
+      // TODO(arv): Unify with appendChild
+      if (!refWrapper)
+        return this.appendChild(childWrapper);
 
-      refWrapper = refWrapper || null;
-      refWrapper && assertIsNodeWrapper(refWrapper);
-      refWrapper && assert(refWrapper.parentNode === this);
+      assertIsNodeWrapper(childWrapper);
+      assertIsNodeWrapper(refWrapper);
+      assert(refWrapper.parentNode === this);
 
       var nodes;
-      var previousNode =
-          refWrapper ? refWrapper.previousSibling : this.lastChild;
 
-      var useNative = !this.invalidateShadowRenderer() &&
-                      !invalidateParent(childWrapper);
+      if (this.invalidateShadowRenderer() || invalidateParent(childWrapper)) {
+        var previousNode = refWrapper.previousSibling;
+        var nextNode = refWrapper;
+        nodes = collectNodes(childWrapper, this, previousNode, nextNode);
 
-      if (useNative)
-        nodes = collectNodesNative(childWrapper);
-      else
-        nodes = collectNodes(childWrapper, this, previousNode, refWrapper);
-
-      if (useNative) {
-        ensureSameOwnerDocument(this, childWrapper);
-        originalInsertBefore.call(this.impl, unwrap(childWrapper),
-                                  unwrap(refWrapper));
-      } else {
-        if (!previousNode)
+        if (this.firstChild === refWrapper)
           this.firstChild_ = nodes[0];
-        if (!refWrapper)
-          this.lastChild_ = nodes[nodes.length - 1];
-
-        var refNode = unwrap(refWrapper);
-        var parentNode = refNode ? refNode.parentNode : this.impl;
 
         // insertBefore refWrapper no matter what the parent is?
+        var refNode = unwrap(refWrapper);
+        var parentNode = refNode.parentNode;
+
         if (parentNode) {
-          originalInsertBefore.call(parentNode,
-              unwrapNodesForInsertion(this, nodes), refNode);
+          originalInsertBefore.call(
+              parentNode,
+              unwrapNodesForInsertion(this, nodes),
+              refNode);
         } else {
           adoptNodesIfNeeded(this, nodes);
         }
+      } else {
+        nodes = collectNodesNoNeedToUpdatePointers(childWrapper);
+        ensureSameOwnerDocument(this, childWrapper);
+        originalInsertBefore.call(this.impl, unwrap(childWrapper),
+                                  unwrap(refWrapper));
       }
 
-      enqueueMutation(this, 'childList', {
-        addedNodes: nodes,
-        nextSibling: refWrapper,
-        previousSibling: previousNode
-      });
-
       nodesWereAdded(nodes);
 
       return childWrapper;
@@ -3435,15 +2939,15 @@
       }
 
       var childNode = unwrap(childWrapper);
-      var childWrapperNextSibling = childWrapper.nextSibling;
-      var childWrapperPreviousSibling = childWrapper.previousSibling;
-
       if (this.invalidateShadowRenderer()) {
+
         // We need to remove the real node from the DOM before updating the
         // pointers. This is so that that mutation event is dispatched before
         // the pointers have changed.
         var thisFirstChild = this.firstChild;
         var thisLastChild = this.lastChild;
+        var childWrapperNextSibling = childWrapper.nextSibling;
+        var childWrapperPreviousSibling = childWrapper.previousSibling;
 
         var parentNode = childNode.parentNode;
         if (parentNode)
@@ -3466,16 +2970,6 @@
         removeChildOriginalHelper(this.impl, childNode);
       }
 
-      if (!surpressMutations) {
-        enqueueMutation(this, 'childList', {
-          removedNodes: createOneElementNodeList(childWrapper),
-          nextSibling: childWrapperNextSibling,
-          previousSibling: childWrapperPreviousSibling
-        });
-      }
-
-      registerTransientObservers(this, childWrapper);
-
       return childWrapper;
     },
 
@@ -3489,22 +2983,16 @@
       }
 
       var oldChildNode = unwrap(oldChildWrapper);
-      var nextNode = oldChildWrapper.nextSibling;
-      var previousNode = oldChildWrapper.previousSibling;
       var nodes;
 
-      var useNative = !this.invalidateShadowRenderer() &&
-                      !invalidateParent(newChildWrapper);
-
-      if (useNative) {
-        nodes = collectNodesNative(newChildWrapper);
-      } else {
+      if (this.invalidateShadowRenderer() ||
+          invalidateParent(newChildWrapper)) {
+        var previousNode = oldChildWrapper.previousSibling;
+        var nextNode = oldChildWrapper.nextSibling;
         if (nextNode === newChildWrapper)
           nextNode = newChildWrapper.nextSibling;
         nodes = collectNodes(newChildWrapper, this, previousNode, nextNode);
-      }
 
-      if (!useNative) {
         if (this.firstChild === oldChildWrapper)
           this.firstChild_ = nodes[0];
         if (this.lastChild === oldChildWrapper)
@@ -3521,32 +3009,25 @@
               oldChildNode);
         }
       } else {
+        nodes = collectNodesNoNeedToUpdatePointers(newChildWrapper);
         ensureSameOwnerDocument(this, newChildWrapper);
         originalReplaceChild.call(this.impl, unwrap(newChildWrapper),
                                   oldChildNode);
       }
 
-      enqueueMutation(this, 'childList', {
-        addedNodes: nodes,
-        removedNodes: createOneElementNodeList(oldChildWrapper),
-        nextSibling: nextNode,
-        previousSibling: previousNode
-      });
-
-      nodeWasRemoved(oldChildWrapper);
       nodesWereAdded(nodes);
 
       return oldChildWrapper;
     },
 
     /**
-     * Called after a node was inserted. Subclasses override this to invalidate
+     * Called after a node was added. Subclasses override this to invalidate
      * the renderer as needed.
      * @private
      */
-    nodeIsInserted_: function() {
+    nodeWasAdded_: function() {
       for (var child = this.firstChild; child; child = child.nextSibling) {
-        child.nodeIsInserted_();
+        child.nodeWasAdded_();
       }
     },
 
@@ -3603,8 +3084,6 @@
       return s;
     },
     set textContent(textContent) {
-      var removedNodes = snapshotNodeList(this.childNodes);
-
       if (this.invalidateShadowRenderer()) {
         removeAllChildNodes(this);
         if (textContent !== '') {
@@ -3614,16 +3093,6 @@
       } else {
         this.impl.textContent = textContent;
       }
-
-      var addedNodes = snapshotNodeList(this.childNodes);
-
-      enqueueMutation(this, 'childList', {
-        addedNodes: addedNodes,
-        removedNodes: removedNodes
-      });
-
-      nodesWereRemoved(removedNodes);
-      nodesWereAdded(addedNodes);
     },
 
     get childNodes() {
@@ -3637,6 +3106,9 @@
     },
 
     cloneNode: function(deep) {
+      if (!this.invalidateShadowRenderer())
+        return wrap(this.impl.cloneNode(deep));
+
       var clone = wrap(this.impl.cloneNode(false));
       if (deep) {
         for (var child = this.firstChild; child; child = child.nextSibling) {
@@ -3679,14 +3151,9 @@
   delete Node.prototype.querySelectorAll;
   Node.prototype = mixin(Object.create(EventTarget.prototype), Node.prototype);
 
-  scope.nodeWasAdded = nodeWasAdded;
-  scope.nodeWasRemoved = nodeWasRemoved;
-  scope.nodesWereAdded = nodesWereAdded;
-  scope.nodesWereRemoved = nodesWereRemoved;
-  scope.snapshotNodeList = snapshotNodeList;
   scope.wrappers.Node = Node;
 
-})(window.ShadowDOMPolyfill);
+})(this.ShadowDOMPolyfill);
 
 // Copyright 2013 The Polymer Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
@@ -3760,7 +3227,7 @@
   scope.GetElementsByInterface = GetElementsByInterface;
   scope.SelectorsInterface = SelectorsInterface;
 
-})(window.ShadowDOMPolyfill);
+})(this.ShadowDOMPolyfill);
 
 // Copyright 2013 The Polymer Authors. All rights reserved.
 // Use of this source code is goverened by a BSD-style
@@ -3830,7 +3297,7 @@
   scope.ChildNodeInterface = ChildNodeInterface;
   scope.ParentNodeInterface = ParentNodeInterface;
 
-})(window.ShadowDOMPolyfill);
+})(this.ShadowDOMPolyfill);
 
 // Copyright 2013 The Polymer Authors. All rights reserved.
 // Use of this source code is goverened by a BSD-style
@@ -3841,7 +3308,6 @@
 
   var ChildNodeInterface = scope.ChildNodeInterface;
   var Node = scope.wrappers.Node;
-  var enqueueMutation = scope.enqueueMutation;
   var mixin = scope.mixin;
   var registerWrapper = scope.registerWrapper;
 
@@ -3857,16 +3323,6 @@
     },
     set textContent(value) {
       this.data = value;
-    },
-    get data() {
-      return this.impl.data;
-    },
-    set data(value) {
-      var oldValue = this.impl.data;
-      enqueueMutation(this, 'characterData', {
-        oldValue: oldValue
-      });
-      this.impl.data = value;
     }
   });
 
@@ -3876,7 +3332,7 @@
                   document.createTextNode(''));
 
   scope.wrappers.CharacterData = CharacterData;
-})(window.ShadowDOMPolyfill);
+})(this.ShadowDOMPolyfill);
 
 // Copyright 2013 The Polymer Authors. All rights reserved.
 // Use of this source code is goverened by a BSD-style
@@ -3891,7 +3347,6 @@
   var ParentNodeInterface = scope.ParentNodeInterface;
   var SelectorsInterface = scope.SelectorsInterface;
   var addWrapNodeListMethod = scope.addWrapNodeListMethod;
-  var enqueueMutation = scope.enqueueMutation;
   var mixin = scope.mixin;
   var oneOf = scope.oneOf;
   var registerWrapper = scope.registerWrapper;
@@ -3919,17 +3374,6 @@
       renderer.invalidate();
   }
 
-  function enqueAttributeChange(element, name, oldValue) {
-    // This is not fully spec compliant. We should use localName (which might
-    // have a different case than name) and the namespace (which requires us
-    // to get the Attr object).
-    enqueueMutation(element, 'attributes', {
-      name: name,
-      namespace: null,
-      oldValue: oldValue
-    });
-  }
-
   function Element(node) {
     Node.call(this, node);
   }
@@ -3950,16 +3394,12 @@
     },
 
     setAttribute: function(name, value) {
-      var oldValue = this.impl.getAttribute(name);
       this.impl.setAttribute(name, value);
-      enqueAttributeChange(this, name, oldValue);
       invalidateRendererBasedOnAttribute(this, name);
     },
 
     removeAttribute: function(name) {
-      var oldValue = this.impl.getAttribute(name);
       this.impl.removeAttribute(name);
-      enqueAttributeChange(this, name, oldValue);
       invalidateRendererBasedOnAttribute(this, name);
     },
 
@@ -4010,7 +3450,7 @@
   // that reflect attributes.
   scope.matchesName = matchesName;
   scope.wrappers.Element = Element;
-})(window.ShadowDOMPolyfill);
+})(this.ShadowDOMPolyfill);
 
 // Copyright 2013 The Polymer Authors. All rights reserved.
 // Use of this source code is goverened by a BSD-style
@@ -4021,12 +3461,8 @@
 
   var Element = scope.wrappers.Element;
   var defineGetter = scope.defineGetter;
-  var enqueueMutation = scope.enqueueMutation;
   var mixin = scope.mixin;
-  var nodesWereAdded = scope.nodesWereAdded;
-  var nodesWereRemoved = scope.nodesWereRemoved;
   var registerWrapper = scope.registerWrapper;
-  var snapshotNodeList = scope.snapshotNodeList;
   var unwrap = scope.unwrap;
   var wrap = scope.wrap;
 
@@ -4128,21 +3564,10 @@
       return getInnerHTML(this);
     },
     set innerHTML(value) {
-      var removedNodes = snapshotNodeList(this.childNodes);
-
       if (this.invalidateShadowRenderer())
         setInnerHTML(this, value, this.tagName);
       else
         this.impl.innerHTML = value;
-      var addedNodes = snapshotNodeList(this.childNodes);
-
-      enqueueMutation(this, 'childList', {
-        addedNodes: addedNodes,
-        removedNodes: removedNodes
-      });
-
-      nodesWereRemoved(removedNodes);
-      nodesWereAdded(addedNodes);
     },
 
     get outerHTML() {
@@ -4226,8 +3651,7 @@
   // TODO: Find a better way to share these two with WrapperShadowRoot.
   scope.getInnerHTML = getInnerHTML;
   scope.setInnerHTML = setInnerHTML
-})(window.ShadowDOMPolyfill);
-
+})(this.ShadowDOMPolyfill);
 // Copyright 2013 The Polymer Authors. All rights reserved.
 // Use of this source code is goverened by a BSD-style
 // license that can be found in the LICENSE file.
@@ -4258,7 +3682,7 @@
                   document.createElement('canvas'));
 
   scope.wrappers.HTMLCanvasElement = HTMLCanvasElement;
-})(window.ShadowDOMPolyfill);
+})(this.ShadowDOMPolyfill);
 
 // Copyright 2013 The Polymer Authors. All rights reserved.
 // Use of this source code is goverened by a BSD-style
@@ -4300,8 +3724,7 @@
     registerWrapper(OriginalHTMLContentElement, HTMLContentElement);
 
   scope.wrappers.HTMLContentElement = HTMLContentElement;
-})(window.ShadowDOMPolyfill);
-
+})(this.ShadowDOMPolyfill);
 // Copyright 2013 The Polymer Authors. All rights reserved.
 // Use of this source code is goverened by a BSD-style
 // license that can be found in the LICENSE file.
@@ -4344,7 +3767,7 @@
 
   scope.wrappers.HTMLImageElement = HTMLImageElement;
   scope.wrappers.Image = Image;
-})(window.ShadowDOMPolyfill);
+})(this.ShadowDOMPolyfill);
 
 // Copyright 2013 The Polymer Authors. All rights reserved.
 // Use of this source code is goverened by a BSD-style
@@ -4371,7 +3794,7 @@
     registerWrapper(OriginalHTMLShadowElement, HTMLShadowElement);
 
   scope.wrappers.HTMLShadowElement = HTMLShadowElement;
-})(window.ShadowDOMPolyfill);
+})(this.ShadowDOMPolyfill);
 
 // Copyright 2013 The Polymer Authors. All rights reserved.
 // Use of this source code is goverened by a BSD-style
@@ -4383,8 +3806,10 @@
   var HTMLElement = scope.wrappers.HTMLElement;
   var getInnerHTML = scope.getInnerHTML;
   var mixin = scope.mixin;
+  var muteMutationEvents = scope.muteMutationEvents;
   var registerWrapper = scope.registerWrapper;
   var setInnerHTML = scope.setInnerHTML;
+  var unmuteMutationEvents = scope.unmuteMutationEvents;
   var unwrap = scope.unwrap;
   var wrap = scope.wrap;
 
@@ -4413,9 +3838,11 @@
     var doc = getTemplateContentsOwner(templateElement.ownerDocument);
     var df = unwrap(doc.createDocumentFragment());
     var child;
+    muteMutationEvents();
     while (child = templateElement.firstChild) {
       df.appendChild(child);
     }
+    unmuteMutationEvents();
     return df;
   }
 
@@ -4452,8 +3879,7 @@
     registerWrapper(OriginalHTMLTemplateElement, HTMLTemplateElement);
 
   scope.wrappers.HTMLTemplateElement = HTMLTemplateElement;
-})(window.ShadowDOMPolyfill);
-
+})(this.ShadowDOMPolyfill);
 // Copyright 2013 The Polymer Authors. All rights reserved.
 // Use of this source code is goverened by a BSD-style
 // license that can be found in the LICENSE file.
@@ -4475,7 +3901,7 @@
                   document.createElement('audio'));
 
   scope.wrappers.HTMLMediaElement = HTMLMediaElement;
-})(window.ShadowDOMPolyfill);
+})(this.ShadowDOMPolyfill);
 
 // Copyright 2013 The Polymer Authors. All rights reserved.
 // Use of this source code is goverened by a BSD-style
@@ -4518,7 +3944,7 @@
 
   scope.wrappers.HTMLAudioElement = HTMLAudioElement;
   scope.wrappers.Audio = Audio;
-})(window.ShadowDOMPolyfill);
+})(this.ShadowDOMPolyfill);
 
 // Copyright 2013 The Polymer Authors. All rights reserved.
 // Use of this source code is goverened by a BSD-style
@@ -4582,7 +4008,7 @@
 
   scope.wrappers.HTMLOptionElement = HTMLOptionElement;
   scope.wrappers.Option = Option;
-})(window.ShadowDOMPolyfill);
+})(this.ShadowDOMPolyfill);
 
 // Copyright 2013 The Polymer Authors. All rights reserved.
 // Use of this source code is goverened by a BSD-style
@@ -4614,8 +4040,7 @@
   HTMLUnknownElement.prototype = Object.create(HTMLElement.prototype);
   registerWrapper(OriginalHTMLUnknownElement, HTMLUnknownElement);
   scope.wrappers.HTMLUnknownElement = HTMLUnknownElement;
-})(window.ShadowDOMPolyfill);
-
+})(this.ShadowDOMPolyfill);
 // Copyright 2013 The Polymer Authors. All rights reserved.
 // Use of this source code is goverened by a BSD-style
 // license that can be found in the LICENSE file.
@@ -4651,11 +4076,10 @@
     }
   });
 
-  registerWrapper(OriginalCanvasRenderingContext2D, CanvasRenderingContext2D,
-                  document.createElement('canvas').getContext('2d'));
+  registerWrapper(OriginalCanvasRenderingContext2D, CanvasRenderingContext2D);
 
   scope.wrappers.CanvasRenderingContext2D = CanvasRenderingContext2D;
-})(window.ShadowDOMPolyfill);
+})(this.ShadowDOMPolyfill);
 
 // Copyright 2013 The Polymer Authors. All rights reserved.
 // Use of this source code is goverened by a BSD-style
@@ -4695,111 +4119,10 @@
     }
   });
 
-  // Blink/WebKit has broken DOM bindings. Usually we would create an instance
-  // of the object and pass it into registerWrapper as a "blueprint" but
-  // creating WebGL contexts is expensive and might fail so we use a dummy
-  // object with dummy instance properties for these broken browsers.
-  var instanceProperties = /WebKit/.test(navigator.userAgent) ?
-      {drawingBufferHeight: null, drawingBufferWidth: null} : {};
-
-  registerWrapper(OriginalWebGLRenderingContext, WebGLRenderingContext,
-      instanceProperties);
+  registerWrapper(OriginalWebGLRenderingContext, WebGLRenderingContext);
 
   scope.wrappers.WebGLRenderingContext = WebGLRenderingContext;
-})(window.ShadowDOMPolyfill);
-
-// Copyright 2013 The Polymer Authors. All rights reserved.
-// Use of this source code is goverened by a BSD-style
-// license that can be found in the LICENSE file.
-
-(function(scope) {
-  'use strict';
-
-  var registerWrapper = scope.registerWrapper;
-  var unwrap = scope.unwrap;
-  var unwrapIfNeeded = scope.unwrapIfNeeded;
-  var wrap = scope.wrap;
-
-  var OriginalRange = window.Range;
-
-  function Range(impl) {
-    this.impl = impl;
-  }
-  Range.prototype = {
-    get startContainer() {
-      return wrap(this.impl.startContainer);
-    },
-    get endContainer() {
-      return wrap(this.impl.endContainer);
-    },
-    get commonAncestorContainer() {
-      return wrap(this.impl.commonAncestorContainer);
-    },
-    setStart: function(refNode,offset) {
-      this.impl.setStart(unwrapIfNeeded(refNode), offset);
-    },
-    setEnd: function(refNode,offset) {
-      this.impl.setEnd(unwrapIfNeeded(refNode), offset);
-    },
-    setStartBefore: function(refNode) {
-      this.impl.setStartBefore(unwrapIfNeeded(refNode));
-    },
-    setStartAfter: function(refNode) {
-      this.impl.setStartAfter(unwrapIfNeeded(refNode));
-    },
-    setEndBefore: function(refNode) {
-      this.impl.setEndBefore(unwrapIfNeeded(refNode));
-    },
-    setEndAfter: function(refNode) {
-      this.impl.setEndAfter(unwrapIfNeeded(refNode));
-    },
-    selectNode: function(refNode) {
-      this.impl.selectNode(unwrapIfNeeded(refNode));
-    },
-    selectNodeContents: function(refNode) {
-      this.impl.selectNodeContents(unwrapIfNeeded(refNode));
-    },
-    compareBoundaryPoints: function(how, sourceRange) {
-      return this.impl.compareBoundaryPoints(how, unwrap(sourceRange));
-    },
-    extractContents: function() {
-      return wrap(this.impl.extractContents());
-    },
-    cloneContents: function() {
-      return wrap(this.impl.cloneContents());
-    },
-    insertNode: function(node) {
-      this.impl.insertNode(unwrapIfNeeded(node));
-    },
-    surroundContents: function(newParent) {
-      this.impl.surroundContents(unwrapIfNeeded(newParent));
-    },
-    cloneRange: function() {
-      return wrap(this.impl.cloneRange());
-    },
-    isPointInRange: function(node, offset) {
-      return this.impl.isPointInRange(unwrapIfNeeded(node), offset);
-    },
-    comparePoint: function(node, offset) {
-      return this.impl.comparePoint(unwrapIfNeeded(node), offset);
-    },
-    intersectsNode: function(node) {
-      return this.impl.intersectsNode(unwrapIfNeeded(node));
-    }
-  };
-
-  // IE9 does not have createContextualFragment.
-  if (OriginalRange.prototype.createContextualFragment) {
-    Range.prototype.createContextualFragment = function(html) {
-      return wrap(this.impl.createContextualFragment(html));
-    };
-  }
-
-  registerWrapper(window.Range, Range, document.createRange());
-
-  scope.wrappers.Range = Range;
-
-})(window.ShadowDOMPolyfill);
+})(this.ShadowDOMPolyfill);
 
 // Copyright 2013 The Polymer Authors. All rights reserved.
 // Use of this source code is goverened by a BSD-style
@@ -4826,7 +4149,7 @@
   scope.wrappers.DocumentFragment = DocumentFragment;
   scope.wrappers.Text = Text;
 
-})(window.ShadowDOMPolyfill);
+})(this.ShadowDOMPolyfill);
 
 // Copyright 2013 The Polymer Authors. All rights reserved.
 // Use of this source code is goverened by a BSD-style
@@ -4891,9 +4214,7 @@
   });
 
   scope.wrappers.ShadowRoot = ShadowRoot;
-
-})(window.ShadowDOMPolyfill);
-
+})(this.ShadowDOMPolyfill);
 // Copyright 2013 The Polymer Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
@@ -4908,7 +4229,9 @@
   var ShadowRoot = scope.wrappers.ShadowRoot;
   var assert = scope.assert;
   var mixin = scope.mixin;
+  var muteMutationEvents = scope.muteMutationEvents;
   var oneOf = scope.oneOf;
+  var unmuteMutationEvents = scope.unmuteMutationEvents;
   var unwrap = scope.unwrap;
   var wrap = scope.wrap;
 
@@ -5252,8 +4575,11 @@
         this.renderNode(shadowRoot, renderNode, node, false);
       }
 
-      if (topMostRenderer)
+      if (topMostRenderer) {
+        //muteMutationEvents();
         renderNode.sync();
+        //unmuteMutationEvents();
+      }
 
       this.dirty = false;
     },
@@ -5523,8 +4849,8 @@
     return getDistributedChildNodes(this);
   };
 
-  HTMLShadowElement.prototype.nodeIsInserted_ =
-  HTMLContentElement.prototype.nodeIsInserted_ = function() {
+  HTMLShadowElement.prototype.nodeWasAdded_ =
+  HTMLContentElement.prototype.nodeWasAdded_ = function() {
     // Invalidate old renderer if any.
     this.invalidateShadowRenderer();
 
@@ -5549,8 +4875,7 @@
     remove: remove,
   };
 
-})(window.ShadowDOMPolyfill);
-
+})(this.ShadowDOMPolyfill);
 // Copyright 2013 The Polymer Authors. All rights reserved.
 // Use of this source code is goverened by a BSD-style
 // license that can be found in the LICENSE file.
@@ -5604,7 +4929,7 @@
 
   elementsWithFormProperty.forEach(createWrapperConstructor);
 
-})(window.ShadowDOMPolyfill);
+})(this.ShadowDOMPolyfill);
 
 // Copyright 2013 The Polymer Authors. All rights reserved.
 // Use of this source code is goverened by a BSD-style
@@ -5688,8 +5013,6 @@
       doc.adoptNode(oldShadowRoot);
   }
 
-  var originalImportNode = document.importNode;
-
   mixin(Document.prototype, {
     adoptNode: function(node) {
       if (node.parentNode)
@@ -5699,17 +5022,6 @@
     },
     elementFromPoint: function(x, y) {
       return elementFromPoint(this, this, x, y);
-    },
-    importNode: function(node, deep) {
-      // We need to manually walk the tree to ensure we do not include rendered
-      // shadow trees.
-      var clone = wrap(originalImportNode.call(this.impl, unwrap(node), false));
-      if (deep) {
-        for (var child = node.firstChild; child; child = child.nextSibling) {
-          clone.appendChild(this.importNode(child, true));
-        }
-      }
-      return clone;
     }
   });
 
@@ -5828,7 +5140,6 @@
     window.HTMLDocument || window.Document,  // Gecko adds these to HTMLDocument
   ], [
     'adoptNode',
-    'importNode',
     'contains',
     'createComment',
     'createDocumentFragment',
@@ -5910,7 +5221,7 @@
   scope.wrappers.DOMImplementation = DOMImplementation;
   scope.wrappers.Document = Document;
 
-})(window.ShadowDOMPolyfill);
+})(this.ShadowDOMPolyfill);
 
 // Copyright 2013 The Polymer Authors. All rights reserved.
 // Use of this source code is goverened by a BSD-style
@@ -5960,7 +5271,188 @@
 
   scope.wrappers.Window = Window;
 
-})(window.ShadowDOMPolyfill);
+})(this.ShadowDOMPolyfill);
+
+// Copyright 2013 The Polymer Authors. All rights reserved.
+// Use of this source code is goverened by a BSD-style
+// license that can be found in the LICENSE file.
+
+(function(scope) {
+  'use strict';
+
+  var defineGetter = scope.defineGetter;
+  var defineWrapGetter = scope.defineWrapGetter;
+  var registerWrapper = scope.registerWrapper;
+  var unwrapIfNeeded = scope.unwrapIfNeeded;
+  var wrapNodeList = scope.wrapNodeList;
+  var wrappers = scope.wrappers;
+
+  var OriginalMutationObserver = window.MutationObserver ||
+      window.WebKitMutationObserver;
+
+  if (!OriginalMutationObserver)
+    return;
+
+  var OriginalMutationRecord = window.MutationRecord;
+
+  function MutationRecord(impl) {
+    this.impl = impl;
+  }
+
+  MutationRecord.prototype = {
+    get addedNodes() {
+      return wrapNodeList(this.impl.addedNodes);
+    },
+    get removedNodes() {
+      return wrapNodeList(this.impl.removedNodes);
+    }
+  };
+
+  ['target', 'previousSibling', 'nextSibling'].forEach(function(name) {
+    defineWrapGetter(MutationRecord, name);
+  });
+
+  // WebKit/Blink treats these as instance properties so we override
+  [
+    'type',
+    'attributeName',
+    'attributeNamespace',
+    'oldValue'
+  ].forEach(function(name) {
+    defineGetter(MutationRecord, name, function() {
+      return this.impl[name];
+    });
+  });
+
+  if (OriginalMutationRecord)
+    registerWrapper(OriginalMutationRecord, MutationRecord);
+
+  function wrapRecord(record) {
+    return new MutationRecord(record);
+  }
+
+  function wrapRecords(records) {
+    return records.map(wrapRecord);
+  }
+
+  function MutationObserver(callback) {
+    var self = this;
+    this.impl = new OriginalMutationObserver(function(mutations, observer) {
+      callback.call(self, wrapRecords(mutations), self);
+    });
+  }
+
+  var OriginalNode = window.Node;
+
+  MutationObserver.prototype = {
+    observe: function(target, options) {
+      this.impl.observe(unwrapIfNeeded(target), options);
+    },
+    disconnect: function() {
+      this.impl.disconnect();
+    },
+    takeRecords: function() {
+      return wrapRecords(this.impl.takeRecords());
+    }
+  };
+
+  scope.wrappers.MutationObserver = MutationObserver;
+  scope.wrappers.MutationRecord = MutationRecord;
+
+})(this.ShadowDOMPolyfill);
+
+// Copyright 2013 The Polymer Authors. All rights reserved.
+// Use of this source code is goverened by a BSD-style
+// license that can be found in the LICENSE file.
+
+(function(scope) {
+  'use strict';
+
+  var registerWrapper = scope.registerWrapper;
+  var unwrap = scope.unwrap;
+  var unwrapIfNeeded = scope.unwrapIfNeeded;
+  var wrap = scope.wrap;
+
+  var OriginalRange = window.Range;
+
+  function Range(impl) {
+    this.impl = impl;
+  }
+  Range.prototype = {
+    get startContainer() {
+      return wrap(this.impl.startContainer);
+    },
+    get endContainer() {
+      return wrap(this.impl.endContainer);
+    },
+    get commonAncestorContainer() {
+      return wrap(this.impl.commonAncestorContainer);
+    },
+    setStart: function(refNode,offset) {
+      this.impl.setStart(unwrapIfNeeded(refNode), offset);
+    },
+    setEnd: function(refNode,offset) {
+      this.impl.setEnd(unwrapIfNeeded(refNode), offset);
+    },
+    setStartBefore: function(refNode) {
+      this.impl.setStartBefore(unwrapIfNeeded(refNode));
+    },
+    setStartAfter: function(refNode) {
+      this.impl.setStartAfter(unwrapIfNeeded(refNode));
+    },
+    setEndBefore: function(refNode) {
+      this.impl.setEndBefore(unwrapIfNeeded(refNode));
+    },
+    setEndAfter: function(refNode) {
+      this.impl.setEndAfter(unwrapIfNeeded(refNode));
+    },
+    selectNode: function(refNode) {
+      this.impl.selectNode(unwrapIfNeeded(refNode));
+    },
+    selectNodeContents: function(refNode) {
+      this.impl.selectNodeContents(unwrapIfNeeded(refNode));
+    },
+    compareBoundaryPoints: function(how, sourceRange) {
+      return this.impl.compareBoundaryPoints(how, unwrap(sourceRange));
+    },
+    extractContents: function() {
+      return wrap(this.impl.extractContents());
+    },
+    cloneContents: function() {
+      return wrap(this.impl.cloneContents());
+    },
+    insertNode: function(node) {
+      this.impl.insertNode(unwrapIfNeeded(node));
+    },
+    surroundContents: function(newParent) {
+      this.impl.surroundContents(unwrapIfNeeded(newParent));
+    },
+    cloneRange: function() {
+      return wrap(this.impl.cloneRange());
+    },
+    isPointInRange: function(node, offset) {
+      return this.impl.isPointInRange(unwrapIfNeeded(node), offset);
+    },
+    comparePoint: function(node, offset) {
+      return this.impl.comparePoint(unwrapIfNeeded(node), offset);
+    },
+    intersectsNode: function(node) {
+      return this.impl.intersectsNode(unwrapIfNeeded(node));
+    }
+  };
+
+  // IE9 does not have createContextualFragment.
+  if (OriginalRange.prototype.createContextualFragment) {
+    Range.prototype.createContextualFragment = function(html) {
+      return wrap(this.impl.createContextualFragment(html));
+    };
+  }
+
+  registerWrapper(window.Range, Range);
+
+  scope.wrappers.Range = Range;
+
+})(this.ShadowDOMPolyfill);
 
 // Copyright 2013 The Polymer Authors. All rights reserved.
 // Use of this source code is goverened by a BSD-style
@@ -6062,8 +5554,7 @@
   // Export for testing.
   scope.knownElements = elements;
 
-})(window.ShadowDOMPolyfill);
-
+})(this.ShadowDOMPolyfill);
 /*
  * Copyright 2013 The Polymer Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style
@@ -6552,16 +6043,11 @@
     return cssText.replace(cssColonHostRe, function(m, p1, p2, p3) {
       p1 = polyfillHostNoCombinator;
       if (p2) {
-        var parts = p2.split(','), r = [];
-        for (var i=0, l=parts.length, p; (i<l) && (p=parts[i]); i++) {
-          p = p.trim();
-          if (p.match(polyfillHost)) {
-            r.push(p1 + p.replace(polyfillHost, '') + p3);
-          } else {
-            r.push(p1 + p + p3 + ', ' + p + ' ' + p1 + p3);
-          }
+        if (p2.match(polyfillHost)) {
+          return p1 + p2.replace(polyfillHost, '') + p3;
+        } else {
+          return p1 + p2 + p3 + ', ' + p2 + ' ' + p1 + p3;
         }
-        return r.join(',');
       } else {
         return p1 + p3;
       }
@@ -6571,7 +6057,7 @@
    * Convert ^ and ^^ combinators by replacing with space.
   */
   convertCombinators: function(cssText) {
-    return cssText.replace(/\^\^/g, ' ').replace(/\^/g, ' ');
+    return cssText.replace('^^', ' ').replace('^', ' ');
   },
   // change a selector like 'div' to 'name div'
   scopeRules: function(cssRules, name, typeExtension) {
@@ -6583,7 +6069,7 @@
         cssText += this.propertiesFromRule(rule) + '\n}\n\n';
       } else if (rule.media) {
         cssText += '@media ' + rule.media.mediaText + ' {\n';
-        cssText += this.scopeRules(rule.cssRules, name, typeExtension);
+        cssText += this.scopeRules(rule.cssRules, name);
         cssText += '\n}\n\n';
       } else if (rule.cssText) {
         cssText += rule.cssText + '\n\n';
@@ -6596,9 +6082,8 @@
     parts.forEach(function(p) {
       p = p.trim();
       if (this.selectorNeedsScoping(p, name, typeExtension)) {
-        p = (strict && !p.match(polyfillHostNoCombinator)) ? 
-            this.applyStrictSelectorScope(p, name) :
-            this.applySimpleSelectorScope(p, name, typeExtension);
+        p = strict ? this.applyStrictSelectorScope(p, name) :
+          this.applySimpleSelectorScope(p, name, typeExtension);
       }
       r.push(p);
     }, this);
@@ -6646,7 +6131,14 @@
         polyfillHost);
   },
   propertiesFromRule: function(rule) {
-    return rule.style.cssText;
+    var properties = rule.style.cssText;
+    // TODO(sorvell): Chrome cssom incorrectly removes quotes from the content
+    // property. (https://code.google.com/p/chromium/issues/detail?id=247231)
+    if (rule.style.content && !rule.style.content.match(/['"]+/)) {
+      properties = 'content: \'' + rule.style.content + '\';\n' + 
+        rule.style.cssText.replace(/content:[^;]*;/g, '');
+    }
+    return properties;
   }
 };
 
@@ -6660,18 +6152,15 @@
     cssPolyfillUnscopedRuleCommentRe = /\/\*\s@polyfill-unscoped-rule([^*]*\*+([^/*][^*]*\*+)*)\//gim,
     cssPseudoRe = /::(x-[^\s{,(]*)/gim,
     cssPartRe = /::part\(([^)]*)\)/gim,
-    // note: :host pre-processed to -shadowcsshost.
-    polyfillHost = '-shadowcsshost',
-    cssColonHostRe = new RegExp('(' + polyfillHost +
-        ')(?:\\((' +
-        '(?:\\([^)(]*\\)|[^)(]*)+?' +
-        ')\\))?([^,{]*)', 'gim'),
+    // note: :host pre-processed to -host.
+    cssColonHostRe = /(-host)(?:\(([^)]*)\))?([^,{]*)/gim,
     selectorReSuffix = '([>\\s~+\[.,{:][\\s\\S]*)?$',
     hostRe = /@host/gim,
     colonHostRe = /\:host/gim,
+    polyfillHost = '-host',
     /* host name without combinator */
-    polyfillHostNoCombinator = polyfillHost + '-no-combinator',
-    polyfillHostRe = new RegExp(polyfillHost, 'gim');
+    polyfillHostNoCombinator = '-host-no-combinator',
+    polyfillHostRe = /-host/gim;
 
 function stylesToCssText(styles, preserveComments) {
   var cssText = '';
@@ -8287,7 +7776,7 @@
 $is_bh:true,
 $is_HB:true,
 $is_Dv:true}]
-$$.eO=[P,{"":"v;wc,nn,lv,Pp",
+$$.bq=[P,{"":"v;wc,nn,lv,Pp",
 call$2:function(a,b){return this.nn.call(this.wc,a,b)},
 $is_bh:true}]
 $$.Y7=[A,{"":"v;wc,nn,lv,Pp",
@@ -8316,7 +7805,7 @@
 call$catchAll:function(){return{onError:null,radix:null}},
 $is_HB:true,
 $is_Dv:true}]
-;init.mangledNames={gB:"length",gCr:"_mangledName",gCt:"paddedLine",gDb:"_cachedDeclarations",gEI:"prefix",gF1:"isolate",gFF:"source",gFJ:"__$cls",gFT:"__$instruction",gFU:"_cachedMethodsMap",gG1:"message",gH8:"_fieldsDescriptor",gHX:"__$displayValue",gHt:"_fieldsMetadata",gKM:"$",gLA:"src",gLy:"_cachedSetters",gM2:"_cachedVariables",gMj:"function",gNI:"instruction",gNl:"script",gO3:"url",gOk:"_cachedMetadata",gP:"value",gPw:"__$isolate",gPy:"__$error",gQG:"app",gQq:"__$trace",gRu:"cls",gT1:"_cachedGetters",gTn:"json",gTx:"_jsConstructorOrInterceptor",gUF:"_cachedTypeVariables",gUy:"_collapsed",gUz:"__$script",gVB:"error_obj",gXB:"_message",gXJ:"lines",gXR:"scripts",gZ6:"locationManager",gZw:"__$code",ga:"a",gai:"displayValue",gb:"b",gb0:"_cachedConstructors",gcC:"hash",geb:"__$json",gfY:"kind",ghO:"__$error_obj",ghm:"__$app",gi0:"__$name",gi2:"isolates",giI:"__$library",gjO:"id",gjd:"_cachedMethods",gkc:"error",gkf:"_count",gl7:"iconClass",glD:"currentHashUri",gle:"_metadata",glw:"requestManager",gn2:"responses",gnI:"isolateManager",gnz:"_owner",goc:"name",gpz:"_jsConstructorCache",gqN:"_superclass",gql:"__$function",gqm:"_cachedSuperinterfaces",gt0:"field",gtB:"_cachedFields",gtD:"library",gtN:"trace",gtT:"code",guA:"_cachedMembers",gvH:"index",gvX:"__$source",gvt:"__$field",gxj:"collapsed",gzd:"currentHash",gzh:"__$iconClass"};init.mangledGlobalNames={DI:"_closeIconClass",Vl:"_openIconClass"};(function (reflectionData) {
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 C.YD.ZL(a)
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+z=a.P2
+y=a.Xf
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+a.VA=this.pD(a,C.Jw,a.VA,"none")}else{a.Xf=this.pD(a,C.Di,y,"glyphicon glyphicon-chevron-up")
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 a.mT=y
 a.KM=v
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 C.j8.FH(a)
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+H.VM(z,[H.W8(this,"AM",0)])
 return z},
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@@ -10363,17 +9821,17 @@
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 H.VM(y,[z])
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-gEO:function(){throw H.b(H.Ef("Should not call _methods"))},
-qj:function(a,b){throw H.b(H.Ef("Should not call _invoke"))},
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+H.VM(z,[P.wv,P.QF])
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-gCr:function(){return H.d(this.NK.gCr())+"<"+this.EZ+">"},
+gWL:function(){return H.d(this.NK.gWL())+"<"+this.EZ+">"},
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+if(z!=null)return z
+z=new H.Gj(H.Vv(this.gEO()))
+H.VM(z,[P.wv,P.RS])
+this.FU=z
+return z},
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 if(z!=null)return z
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-z=H.Jf(this,init.metadata[J.UQ(init.typeInformation[this.NK.gCr()],0)])
+z=H.Jf(this,init.metadata[J.UQ(init.typeInformation[this.NK.gWL()],0)])
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 return z},
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 if(z!=null&&z.gFo()&&!z.gV5()){y=z.gao()
-if(!(y in $))throw H.b(H.Ef("Cannot find \""+y+"\" in current isolate."))
+if(!(y in $))throw H.b(H.Pa("Cannot find \""+y+"\" in current isolate."))
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+if(!(y in $))throw H.b(H.Pa("Cannot find \""+y+"\" in current isolate."))
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 C.Tl.FH(a)
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 C.OD.FH(a)
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 C.lS.FH(a)
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 C.PJ.FH(a)
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+a.Ye=z
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+C.cp.FH(a)
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-Qh:function(a){var z,y,x,w
+Qh:function(a){var z,y,x,w,v,u
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-this.Lv=H.vn(x).F2(w,y,null).Ax
+y=z.tt(z,!1)}x=this.hP.gLv()
+if(x==null)this.Lv=null
+else{z=this.KL
+if(z.gbP(z)==null)if(z.glT())this.Lv=x
+else this.Lv=K.Ku(x,y)
+else if(J.xC(z.gbP(z),"[]")){if(0>=y.length)throw H.e(y,0)
+w=y[0]
+z=J.U6(x)
+this.Lv=z.t(x,w)
+if(typeof x==="object"&&x!==null&&!!z.$isd3)this.tj=z.gqh(x).yI(new K.vQ(this,a,w))}else{v=H.vn(x)
+u=new H.GD(H.le(z.gbP(z)))
+this.Lv=z.glT()?v.rN(u).Ax:v.F2(u,y,null).Ax
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-return typeof a==="object"&&a!==null&&!!z.$isqI&&J.xC(a.oc,this.d)},
+return typeof a==="object"&&a!==null&&!!z.$isHA&&J.xC(a.G3,this.d)},
+"+call:1:0":0,
+$isEH:true,
+$is_HB:true,
+$is_Dv:true},jh:{"":"Tp;e,f,g",
+call$1:function(a){if(J.ja(a,new K.e3(this.g))===!0)this.e.DX(this.f)},
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+$isEH:true,
+$is_HB:true,
+$is_Dv:true},e3:{"":"Tp;h",
+call$1:function(a){var z=J.x(a)
+return typeof a==="object"&&a!==null&&!!z.$isqI&&J.xC(a.oc,this.h)},
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+"+invoke:3:0":0,
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+CI:function(a,b){return this.F2(a,b,null)},
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+$isK9:true},RW:{"":"hw;hP<,bP>,re<",
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+glT:function(){return this.re==null},
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 y=J.v1(this.bP)
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-"+hashCode":0,
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-$is_bh:true}}],["polymer_expressions.parser","package:polymer_expressions/parser.dart",,T,{FX:{"":"a;Sk,Ix,ku,fL",
+$is_bh:true}}],["polymer_expressions.parser","package:polymer_expressions/parser.dart",,T,{FX:{"":"a;Sk,Ix,ku,fL,lQ",
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@@ -19600,29 +19150,30 @@
 this.w5()
 return this.o9()},
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-if(!(a!=null&&!J.xC(J.Iz(this.fL.mD),a)))z=b!=null&&!J.xC(J.Vm(this.fL.mD),b)
+if(!(a!=null&&!J.xC(J.Iz(this.lQ),a)))z=b!=null&&!J.xC(J.Vm(this.lQ),b)
 else z=!0
-if(z)throw H.b(Y.RV("Expected "+b+": "+H.d(this.fL.mD)))
-this.fL.G()},
+if(z)throw H.b(Y.RV("Expected "+b+": "+H.d(this.lQ)))
+this.lQ=this.fL.G()?this.fL.mD:null},
 w5:function(){return this.Gd(null,null)},
-o9:function(){if(this.fL.mD==null){this.Sk.toString
+o9:function(){if(this.lQ==null){this.Sk.toString
 return C.OL}var z=this.Dl()
 return z==null?null:this.BH(z,0)},
 BH:function(a,b){var z,y,x,w
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+for(z=this.Sk;y=this.lQ,y!=null;)if(J.xC(J.Iz(y),9))if(J.xC(J.Vm(this.lQ),"(")){x=this.qk()
 z.toString
-a=new U.RW(a,null,x)}else if(J.xC(J.Vm(this.fL.mD),"[")){w=this.bK()
+a=new U.RW(a,null,x)}else if(J.xC(J.Vm(this.lQ),"[")){w=this.bK()
+x=w==null?[]:[w]
 z.toString
-a=new U.zX(a,w)}else break
-else if(J.xC(J.Iz(this.fL.mD),3)){this.w5()
-a=this.qL(a,this.Dl())}else if(J.xC(J.Iz(this.fL.mD),10)&&J.xC(J.Vm(this.fL.mD),"in"))a=this.xo(a)
-else if(J.xC(J.Iz(this.fL.mD),8)&&J.J5(this.fL.mD.gG8(),b))a=this.Tw(a)
+a=new U.RW(a,"[]",x)}else break
+else if(J.xC(J.Iz(this.lQ),3)){this.w5()
+a=this.ct(a,this.Dl())}else if(J.xC(J.Iz(this.lQ),10)&&J.xC(J.Vm(this.lQ),"in"))a=this.xo(a)
+else if(J.xC(J.Iz(this.lQ),8)&&J.J5(this.lQ.gG8(),b))a=this.Tw(a)
 else break
 return a},
-qL:function(a,b){var z,y
+ct:function(a,b){var z,y
 if(typeof b==="object"&&b!==null&&!!b.$isw6){z=b.gP(b)
 this.Sk.toString
-return new U.x9(a,z)}else{if(typeof b==="object"&&b!==null&&!!b.$isRW){z=b.ghP()
+return new U.RW(a,z,null)}else{if(typeof b==="object"&&b!==null&&!!b.$isRW){z=b.ghP()
 y=J.x(z)
 y=typeof z==="object"&&z!==null&&!!y.$isw6
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@@ -19631,27 +19182,27 @@
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 return new U.RW(a,z,y)}else throw H.b(Y.RV("expected identifier: "+H.d(b)))}},
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-z=this.fL.mD
+z=this.lQ
 this.w5()
 y=this.Dl()
-while(!0){x=this.fL.mD
-if(x!=null)x=(J.xC(J.Iz(x),8)||J.xC(J.Iz(this.fL.mD),3)||J.xC(J.Iz(this.fL.mD),9))&&J.xZ(this.fL.mD.gG8(),z.gG8())
+while(!0){x=this.lQ
+if(x!=null)x=(J.xC(J.Iz(x),8)||J.xC(J.Iz(this.lQ),3)||J.xC(J.Iz(this.lQ),9))&&J.xZ(this.lQ.gG8(),z.gG8())
 else x=!1
 if(!x)break
-y=this.BH(y,this.fL.mD.gG8())}x=J.Vm(z)
+y=this.BH(y,this.lQ.gG8())}x=J.Vm(z)
 this.Sk.toString
 return new U.uk(x,a,y)},
 Dl:function(){var z,y,x,w
-if(J.xC(J.Iz(this.fL.mD),8)){z=J.Vm(this.fL.mD)
+if(J.xC(J.Iz(this.lQ),8)){z=J.Vm(this.lQ)
 y=J.x(z)
 if(y.n(z,"+")||y.n(z,"-")){this.w5()
-if(J.xC(J.Iz(this.fL.mD),6)){y=H.BU(H.d(z)+H.d(J.Vm(this.fL.mD)),null,null)
+if(J.xC(J.Iz(this.lQ),6)){y=H.BU(H.d(z)+H.d(J.Vm(this.lQ)),null,null)
 this.Sk.toString
 z=new U.no(y)
 z.$builtinTypeInfo=[null]
 this.w5()
 return z}else{y=this.Sk
-if(J.xC(J.Iz(this.fL.mD),7)){x=H.IH(H.d(z)+H.d(J.Vm(this.fL.mD)),null)
+if(J.xC(J.Iz(this.lQ),7)){x=H.IH(H.d(z)+H.d(J.Vm(this.lQ)),null)
 y.toString
 z=new U.no(x)
 z.$builtinTypeInfo=[null]
@@ -19663,7 +19214,7 @@
 this.Sk.toString
 return new U.jK(z,w)}}return this.lb()},
 lb:function(){var z,y
-switch(J.Iz(this.fL.mD)){case 10:z=J.Vm(this.fL.mD)
+switch(J.Iz(this.lQ)){case 10:z=J.Vm(this.lQ)
 y=J.x(z)
 if(y.n(z,"this")){this.w5()
 this.Sk.toString
@@ -19673,23 +19224,23 @@
 case 1:return this.qF()
 case 6:return this.Ud()
 case 7:return this.tw()
-case 9:if(J.xC(J.Vm(this.fL.mD),"("))return this.Pj()
-else if(J.xC(J.Vm(this.fL.mD),"{"))return this.Wc()
+case 9:if(J.xC(J.Vm(this.lQ),"("))return this.Pj()
+else if(J.xC(J.Vm(this.lQ),"{"))return this.Wc()
 return
 default:return}},
 Wc:function(){var z,y,x,w
 z=[]
 y=this.Sk
 do{this.w5()
-if(J.xC(J.Iz(this.fL.mD),9)&&J.xC(J.Vm(this.fL.mD),"}"))break
-x=J.Vm(this.fL.mD)
+if(J.xC(J.Iz(this.lQ),9)&&J.xC(J.Vm(this.lQ),"}"))break
+x=J.Vm(this.lQ)
 y.toString
 w=new U.no(x)
 w.$builtinTypeInfo=[null]
 this.w5()
 this.Gd(5,":")
 z.push(new U.ae(w,this.o9()))
-x=this.fL.mD}while(x!=null&&J.xC(J.Vm(x),","))
+x=this.lQ}while(x!=null&&J.xC(J.Vm(x),","))
 this.Gd(9,"}")
 return new U.kB(z)},
 xo:function(a){var z,y
@@ -19700,15 +19251,15 @@
 this.Sk.toString
 return new U.K9(a,y)},
 Cy:function(){var z,y,x
-if(J.xC(J.Vm(this.fL.mD),"true")){this.w5()
+if(J.xC(J.Vm(this.lQ),"true")){this.w5()
 this.Sk.toString
 z=new U.no(!0)
 H.VM(z,[null])
-return z}if(J.xC(J.Vm(this.fL.mD),"false")){this.w5()
+return z}if(J.xC(J.Vm(this.lQ),"false")){this.w5()
 this.Sk.toString
 z=new U.no(!1)
 H.VM(z,[null])
-return z}if(J.xC(J.Vm(this.fL.mD),"null")){this.w5()
+return z}if(J.xC(J.Vm(this.lQ),"null")){this.w5()
 this.Sk.toString
 z=new U.no(null)
 H.VM(z,[null])
@@ -19717,23 +19268,23 @@
 if(x==null)return y
 else{this.Sk.toString
 return new U.RW(y,null,x)}},
-nt:function(){if(!J.xC(J.Iz(this.fL.mD),2))throw H.b(Y.RV("expected identifier: "+H.d(this.fL.mD)+".value"))
-var z=J.Vm(this.fL.mD)
+nt:function(){if(!J.xC(J.Iz(this.lQ),2))throw H.b(Y.RV("expected identifier: "+H.d(this.lQ)+".value"))
+var z=J.Vm(this.lQ)
 this.w5()
 this.Sk.toString
 return new U.w6(z)},
 qk:function(){var z,y
-z=this.fL.mD
-if(z!=null&&J.xC(J.Iz(z),9)&&J.xC(J.Vm(this.fL.mD),"(")){y=[]
+z=this.lQ
+if(z!=null&&J.xC(J.Iz(z),9)&&J.xC(J.Vm(this.lQ),"(")){y=[]
 do{this.w5()
-if(J.xC(J.Iz(this.fL.mD),9)&&J.xC(J.Vm(this.fL.mD),")"))break
+if(J.xC(J.Iz(this.lQ),9)&&J.xC(J.Vm(this.lQ),")"))break
 y.push(this.o9())
-z=this.fL.mD}while(z!=null&&J.xC(J.Vm(z),","))
+z=this.lQ}while(z!=null&&J.xC(J.Vm(z),","))
 this.Gd(9,")")
 return y}return},
 bK:function(){var z,y
-z=this.fL.mD
-if(z!=null&&J.xC(J.Iz(z),9)&&J.xC(J.Vm(this.fL.mD),"[")){this.w5()
+z=this.lQ
+if(z!=null&&J.xC(J.Iz(z),9)&&J.xC(J.Vm(this.lQ),"[")){this.w5()
 y=this.o9()
 this.Gd(9,"]")
 return y}return},
@@ -19743,14 +19294,14 @@
 this.Sk.toString
 return new U.Iq(z)},
 qF:function(){var z,y
-z=J.Vm(this.fL.mD)
+z=J.Vm(this.lQ)
 this.Sk.toString
 y=new U.no(z)
 H.VM(y,[null])
 this.w5()
 return y},
 pT:function(a){var z,y
-z=H.BU(H.d(a)+H.d(J.Vm(this.fL.mD)),null,null)
+z=H.BU(H.d(a)+H.d(J.Vm(this.lQ)),null,null)
 this.Sk.toString
 y=new U.no(z)
 H.VM(y,[null])
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 return y},
 Ud:function(){return this.pT("")},
 yj:function(a){var z,y
-z=H.IH(H.d(a)+H.d(J.Vm(this.fL.mD)),null)
+z=H.IH(H.d(a)+H.d(J.Vm(this.lQ)),null)
 this.Sk.toString
 y=new U.no(z)
 H.VM(y,[null])
@@ -19770,29 +19321,17 @@
 H.VM(z,[Y.Pn])
 y=P.p9("")
 x=new U.Fq()
-return new T.FX(x,new Y.hc(z,y,new P.WU(a,0,0,null),null),null,null)}}}}],["polymer_expressions.src.globals","package:polymer_expressions/src/globals.dart",,K,{Dc:function(a){var z=new K.Bt(a)
+return new T.FX(x,new Y.hc(z,y,new P.WU(a,0,0,null),null),null,null,null)}}}}],["polymer_expressions.src.globals","package:polymer_expressions/src/globals.dart",,K,{Dc:function(a){var z=new K.Bt(a)
 H.VM(z,[null])
 return z},Ae:{"":"a;vH>-,P>-",
 r6:function(a,b){return this.P.call$1(b)},
-n:function(a,b){var z
-if(b==null)return!1
-z=J.x(b)
-return typeof b==="object"&&b!==null&&!!z.$isAe&&J.xC(b.vH,this.vH)&&J.xC(b.P,this.P)
-"37,106,37"},
-"+==:1:0":1,
-giO:function(a){return J.v1(this.P)
-"27"},
-"+hashCode":1,
-bu:function(a){return"("+H.d(this.vH)+", "+H.d(this.P)+")"
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-"+toString:0:0":1,
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 "<>":[3],
 static:{i0:function(a,b,c){var z=new K.Ae(a,b)
 H.VM(z,[c])
 return z
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+"28,29,30,31,32"},"+new IndexedValue:2:0":1}},"+IndexedValue": [0],Bt:{"":"mW;YR",
 gA:function(a){var z=J.GP(this.YR)
 z=new K.vR(z,0,null)
 H.VM(z,[H.W8(this,"Bt",0)])
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 default:return a}},Pn:{"":"a;fY>,P>,G8<",
 r6:function(a,b){return this.P.call$1(b)},
 bu:function(a){return"("+this.fY+", '"+this.P+"')"},
-"+toString:0:0":0,
 $isPn:true},hc:{"":"a;MV,wV,jI,x0",
 zl:function(){var z,y,x,w,v
 z=this.jI
@@ -19946,18 +19484,11 @@
 u.$builtinTypeInfo=[J.im]
 v=H.eT(u)}this.MV.push(new Y.Pn(8,v,C.dj.t(C.dj,v)))}},hA:{"":"a;G1>",
 bu:function(a){return"ParseException: "+this.G1},
-"+toString:0:0":0,
 static:{RV:function(a){return new Y.hA(a)}}}}],["polymer_expressions.visitor","package:polymer_expressions/visitor.dart",,S,{fr:{"":"a;",
 DV:function(a){return J.UK(a,this)},
 gnG:function(){return new H.Pm(this,S.fr.prototype.DV,null,"DV")}},a0:{"":"fr;",
 W9:function(a){return this.xn(a)},
-LT:function(a){var z=a.wz
-z.RR(z,this)
-this.xn(a)},
-co:function(a){J.UK(a.ghP(),this)
-this.xn(a)},
-CU:function(a){J.UK(a.ghP(),this)
-J.UK(a.gJn(),this)
+LT:function(a){a.RR(a,this)
 this.xn(a)},
 Y7:function(a){var z,y
 J.UK(a.ghP(),this)
@@ -19979,7 +19510,7 @@
 this.xn(a)},
 ky:function(a){J.UK(a.gBb(a),this)
 J.UK(a.gT8(a),this)
-this.xn(a)}}}],["response_viewer_element","package:observatory/src/observatory_elements/response_viewer.dart",,Q,{NQ:{"":["uL;hm-,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM-",null,null,null,null,null,null,null,null,null,null,null,null,function(){return[C.nJ]}],
+this.xn(a)}}}],["response_viewer_element","package:observatory/src/observatory_elements/response_viewer.dart",,Q,{NQ:{"":["uL;tH-,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM-",null,null,null,null,null,null,null,null,null,null,null,null,function(){return[C.nJ]}],
 "@":function(){return[C.Ig]},
 static:{Zo:function(a){var z,y,x,w,v
 z=$.Nd()
@@ -19994,12 +19525,12 @@
 C.Cc.ZL(a)
 C.Cc.FH(a)
 return a
-"30"},"+new ResponseViewerElement$created:0:0":1}},"+ResponseViewerElement": [24]}],["script_view_element","package:observatory/src/observatory_elements/script_view.dart",,U,{fI:{"":["WZq;Uz%-,VJ,Ai,hm-,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM-",null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,function(){return[C.nJ]}],
+"33"},"+new ResponseViewerElement$created:0:0":1}},"+ResponseViewerElement": [27]}],["script_view_element","package:observatory/src/observatory_elements/script_view.dart",,U,{fI:{"":["V0;Uz%-,VJ,Ai,tH-,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM-",null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,function(){return[C.nJ]}],
 gNl:function(a){return a.Uz
-"34,35,36"},
+"37,38,39"},
 "+script":1,
-sNl:function(a,b){a.Uz=this.ct(a,C.fX,a.Uz,b)
-"37,28,34,35"},
+sNl:function(a,b){a.Uz=this.pD(a,C.fX,a.Uz,b)
+"40,31,37,38"},
 "+script=":1,
 "@":function(){return[C.Er]},
 static:{Ry:function(a){var z,y,x,w,v
@@ -20015,12 +19546,12 @@
 C.cJ.ZL(a)
 C.cJ.FH(a)
 return a
-"31"},"+new ScriptViewElement$created:0:0":1}},"+ScriptViewElement": [107],WZq:{"":"uL+Pi;",$isd3:true}}],["source_view_element","package:observatory/src/observatory_elements/source_view.dart",,X,{kK:{"":["pva;vX%-,VJ,Ai,hm-,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM-",null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,function(){return[C.nJ]}],
+"34"},"+new ScriptViewElement$created:0:0":1}},"+ScriptViewElement": [113],V0:{"":"uL+Pi;",$isd3:true}}],["source_view_element","package:observatory/src/observatory_elements/source_view.dart",,X,{kK:{"":["V4;vX%-,VJ,Ai,tH-,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM-",null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,function(){return[C.nJ]}],
 gFF:function(a){return a.vX
-"108,35,36"},
+"114,38,39"},
 "+source":1,
-sFF:function(a,b){a.vX=this.ct(a,C.hn,a.vX,b)
-"37,28,108,35"},
+sFF:function(a,b){a.vX=this.pD(a,C.hn,a.vX,b)
+"40,31,114,38"},
 "+source=":1,
 "@":function(){return[C.H8]},
 static:{HO:function(a){var z,y,x,w,v
@@ -20036,12 +19567,12 @@
 C.Ks.ZL(a)
 C.Ks.FH(a)
 return a
-"32"},"+new SourceViewElement$created:0:0":1}},"+SourceViewElement": [109],pva:{"":"uL+Pi;",$isd3:true}}],["stack_trace_element","package:observatory/src/observatory_elements/stack_trace.dart",,X,{uw:{"":["cda;Qq%-,VJ,Ai,hm-,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM-",null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,function(){return[C.nJ]}],
-gtN:function(a){return a.Qq
-"34,35,36"},
+"35"},"+new SourceViewElement$created:0:0":1}},"+SourceViewElement": [115],V4:{"":"uL+Pi;",$isd3:true}}],["stack_trace_element","package:observatory/src/observatory_elements/stack_trace.dart",,X,{uw:{"":["V6;V4%-,VJ,Ai,tH-,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM-",null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,function(){return[C.nJ]}],
+gtN:function(a){return a.V4
+"37,38,39"},
 "+trace":1,
-stN:function(a,b){a.Qq=this.ct(a,C.kw,a.Qq,b)
-"37,28,34,35"},
+stN:function(a,b){a.V4=this.pD(a,C.kw,a.V4,b)
+"40,31,37,38"},
 "+trace=":1,
 "@":function(){return[C.js]},
 static:{bV:function(a){var z,y,x,w,v,u
@@ -20053,14 +19584,14 @@
 v=W.cv
 u=new V.br(P.Py(null,null,null,w,v),null,null)
 H.VM(u,[w,v])
-a.Qq=z
+a.V4=z
 a.Ye=y
 a.mT=x
 a.KM=u
 C.bg.ZL(a)
 C.bg.FH(a)
 return a
-"33"},"+new StackTraceElement$created:0:0":1}},"+StackTraceElement": [110],cda:{"":"uL+Pi;",$isd3:true}}],["template_binding","package:template_binding/template_binding.dart",,M,{IP:function(a){var z=J.RE(a)
+"36"},"+new StackTraceElement$created:0:0":1}},"+StackTraceElement": [116],V6:{"":"uL+Pi;",$isd3:true}}],["template_binding","package:template_binding/template_binding.dart",,M,{IP:function(a){var z=J.RE(a)
 if(typeof a==="object"&&a!==null&&!!z.$isQl)return C.io.f0(a)
 switch(z.gr9(a)){case"checkbox":return $.FF().aM(a)
 case"radio":case"select-multiple":case"select-one":return z.gEr(a)
@@ -20075,7 +19606,7 @@
 for(y=a.firstChild,x=0;y!=null;y=y.nextSibling,x=w){w=x+1
 if(x>=z.length)throw H.e(z,x)
 M.HP(y,z[x],c,d,e)}},bM:function(a){var z,y
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+for(;z=J.RE(a),y=z.gKV(a),y!=null;a=y);if(typeof a==="object"&&a!==null&&!!z.$isYN||typeof a==="object"&&a!==null&&!!z.$isI0||typeof a==="object"&&a!==null&&!!z.$ishy)return a
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 z=J.x(a)
 if(typeof a==="object"&&a!==null&&!!z.$iscv)return M.F5(a,b)
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 y.sr9(z,"checkbox")
 x=[]
 w=y.gVl(z)
-v=new W.Ov(0,w.uv,w.Ph,W.aF(new M.LfS(x)),w.Sg)
+v=new W.Ov(0,w.uv,w.Ph,W.aF(new M.ik(x)),w.Sg)
 H.VM(v,[H.W8(w,"RO",0)])
 v.Zz()
 y=y.gEr(z)
-v=new W.Ov(0,y.uv,y.Ph,W.aF(new M.fTP(x)),y.Sg)
+v=new W.Ov(0,y.uv,y.Ph,W.aF(new M.LfS(x)),y.Sg)
 H.VM(v,[H.W8(y,"RO",0)])
 v.Zz()
 z.dispatchEvent(W.H6("click",!1,0,!0,!0,0,0,!1,0,!1,null,0,0,!1,window))
 return x.length===1?C.mt:C.Nm.gFV(x)},
 "+call:0:0":0,
 $isEH:true,
-$is_X0:true},LfS:{"":"Tp;a",
+$is_X0:true},ik:{"":"Tp;a",
 call$1:function(a){this.a.push(C.T1)},
 "+call:1:0":0,
 $isEH:true,
 $is_HB:true,
-$is_Dv:true},fTP:{"":"Tp;b",
+$is_Dv:true},LfS:{"":"Tp;b",
 call$1:function(a){this.b.push(C.mt)},
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@@ -20889,6 +20420,7 @@
 init.globalFunctions.LS=P.LS=new P.Ri(P.qc,"LS")
 init.globalFunctions.iv=P.iv=new H.zy(P.Ou,"iv")
 init.globalFunctions.py=P.py=new H.Nb(P.T9,"py")
+init.globalFunctions.BC=P.BC=new H.Nb(P.tp,"BC")
 init.globalFunctions.n4=P.n4=new H.zy(P.Wc,"n4")
 init.globalFunctions.N3=P.N3=new H.zy(P.ad,"N3")
 init.globalFunctions.J2=P.J2=new H.Nb(P.xv,"J2")
@@ -20947,15 +20479,10 @@
 U.EZ.$isa=true
 U.RW.$ishw=true
 U.RW.$isa=true
-U.zX.$iszX=true
-U.zX.$ishw=true
-U.zX.$isa=true
 U.uk.$ishw=true
 U.uk.$isa=true
 U.K9.$ishw=true
 U.K9.$isa=true
-U.x9.$ishw=true
-U.x9.$isa=true
 U.no.$ishw=true
 U.no.$isa=true
 U.jK.$ishw=true
@@ -20981,38 +20508,38 @@
 A.XP.$isD0=true
 A.XP.$isa=true
 P.vr.$isvr=true
-P.vr.$isej=true
+P.vr.$isQF=true
 P.vr.$isa=true
-P.NL.$isej=true
-P.NL.$isa=true
-P.RS.$isej=true
-P.RS.$isa=true
-H.Zk.$isej=true
-H.Zk.$isej=true
-H.Zk.$isej=true
-H.Zk.$isa=true
 P.D4.$isD4=true
-P.D4.$isej=true
-P.D4.$isej=true
+P.D4.$isQF=true
+P.D4.$isQF=true
 P.D4.$isa=true
-P.ej.$isej=true
-P.ej.$isa=true
-P.RY.$isej=true
-P.RY.$isa=true
-P.Ms.$isMs=true
-P.Ms.$isej=true
-P.Ms.$isej=true
-P.Ms.$isa=true
-P.Ys.$isej=true
+P.RS.$isQF=true
+P.RS.$isa=true
+H.Zk.$isQF=true
+H.Zk.$isQF=true
+H.Zk.$isQF=true
+H.Zk.$isa=true
+P.Ys.$isQF=true
 P.Ys.$isa=true
-P.Fw.$isej=true
+P.Ms.$isMs=true
+P.Ms.$isQF=true
+P.Ms.$isQF=true
+P.Ms.$isa=true
+P.Fw.$isQF=true
 P.Fw.$isa=true
-P.L9u.$isej=true
+P.L9u.$isQF=true
 P.L9u.$isa=true
 X.TR.$isa=true
 N.TJ.$isa=true
 T.yj.$isyj=true
 T.yj.$isa=true
+P.NL.$isQF=true
+P.NL.$isa=true
+P.RY.$isQF=true
+P.RY.$isa=true
+P.QF.$isQF=true
+P.QF.$isa=true
 P.MO.$isMO=true
 P.MO.$isa=true
 F.d3.$isa=true
@@ -21036,9 +20563,9 @@
 P.uq.$isa=true
 P.iD.$isiD=true
 P.iD.$isa=true
-W.QF.$isKV=true
-W.QF.$isD0=true
-W.QF.$isa=true
+W.YN.$isKV=true
+W.YN.$isD0=true
+W.YN.$isa=true
 P.HI.$isqh=true
 P.HI.$asqh=[null]
 P.HI.$isa=true
@@ -21057,6 +20584,8 @@
 W.ew.$isea=true
 W.ew.$isa=true
 L.Pf.$isa=true
+W.cx.$isea=true
+W.cx.$isa=true
 P.mE.$ismE=true
 P.mE.$isa=true
 P.KA.$isKA=true
@@ -21070,11 +20599,11 @@
 P.JI.$isa=true
 H.Uz.$isUz=true
 H.Uz.$isD4=true
-H.Uz.$isej=true
-H.Uz.$isej=true
-H.Uz.$isej=true
-H.Uz.$isej=true
-H.Uz.$isej=true
+H.Uz.$isQF=true
+H.Uz.$isQF=true
+H.Uz.$isQF=true
+H.Uz.$isQF=true
+H.Uz.$isQF=true
 H.Uz.$isa=true
 P.e4.$ise4=true
 P.e4.$isa=true
@@ -21144,18 +20673,18 @@
 return J.ks(a)}
 C.OL=new U.EZ()
 C.Gw=new H.SJ()
-C.l0=new J.Q()
+C.E3=new J.Q()
 C.Fm=new J.kn()
 C.yX=new J.Pp()
-C.wq=new J.im()
+C.c1=new J.im()
 C.oD=new J.P()
 C.Kn=new J.O()
 C.lM=new P.by()
-C.mI=new K.ndx()
+C.mI=new K.Fa()
 C.Us=new A.yL()
-C.nJ=new K.Hm()
+C.nJ=new K.x9()
 C.Wj=new P.dp()
-C.za=new A.jh()
+C.za=new A.Mh()
 C.NU=new P.R8()
 C.v8=new P.W5()
 C.kk=Z.aC.prototype
@@ -21164,22 +20693,25 @@
 C.Vy=new A.V3("disassembly-entry")
 C.J0=new A.V3("observatory-element")
 C.Er=new A.V3("script-view")
+C.ht=new A.V3("field-ref")
 C.aM=new A.V3("isolate-summary")
 C.Ig=new A.V3("response-viewer")
 C.Uc=new A.V3("function-view")
 C.xW=new A.V3("code-view")
 C.aQ=new A.V3("class-view")
-C.Ob=new A.V3("library-view")
+C.Oy=new A.V3("library-view")
 C.c0=new A.V3("message-viewer")
 C.js=new A.V3("stack-trace")
 C.jF=new A.V3("isolate-list")
 C.KG=new A.V3("navigation-bar")
+C.ay=new A.V3("instance-ref")
 C.Gu=new A.V3("collapsible-content")
 C.bd=new A.V3("observatory-application")
 C.uW=new A.V3("error-view")
 C.HN=new A.V3("json-view")
 C.H8=new A.V3("source-view")
-C.mv=new A.V3("field-view")
+C.Tq=new A.V3("field-view")
+C.ql=new A.V3("instance-view")
 C.Tl=E.Fv.prototype
 C.RT=new P.a6(0)
 C.OD=F.I3.prototype
@@ -21189,9 +20721,13 @@
 C.PP=H.VM(new W.e0("hashchange"),[W.ea])
 C.io=H.VM(new W.e0("input"),[W.ea])
 C.fK=H.VM(new W.e0("load"),[W.ew])
+C.ph=H.VM(new W.e0("message"),[W.cx])
+C.WR=D.qr.prototype
 C.lS=A.Gk.prototype
 C.PJ=N.Ds.prototype
 C.W3=W.fJ.prototype
+C.cp=B.pR.prototype
+C.yK=Z.hx.prototype
 C.Dh=L.u7.prototype
 C.nM=D.St.prototype
 C.Nm=J.Q.prototype
@@ -21319,6 +20855,7 @@
   hooks.prototypeForTag = prototypeForTagIE;
 }
 C.A3=new P.QM(null)
+C.Ap=new P.dI(null)
 C.GB=Z.vj.prototype
 C.VZ=new N.Ng("FINER",400)
 C.R5=new N.Ng("FINE",500)
@@ -21347,13 +20884,13 @@
 C.uE=new H.LP(11,{caption:null,col:null,colgroup:null,option:null,optgroup:null,tbody:null,td:null,tfoot:null,th:null,thead:null,tr:null},C.zJ)
 C.uS=I.makeConstantList(["webkitanimationstart","webkitanimationend","webkittransitionend","domfocusout","domfocusin","animationend","animationiteration","animationstart","doubleclick","fullscreenchange","fullscreenerror","keyadded","keyerror","keymessage","needkey","speechchange"])
 C.FS=new H.LP(16,{webkitanimationstart:"webkitAnimationStart",webkitanimationend:"webkitAnimationEnd",webkittransitionend:"webkitTransitionEnd",domfocusout:"DOMFocusOut",domfocusin:"DOMFocusIn",animationend:"webkitAnimationEnd",animationiteration:"webkitAnimationIteration",animationstart:"webkitAnimationStart",doubleclick:"dblclick",fullscreenchange:"webkitfullscreenchange",fullscreenerror:"webkitfullscreenerror",keyadded:"webkitkeyadded",keyerror:"webkitkeyerror",keymessage:"webkitkeymessage",needkey:"webkitneedkey",speechchange:"webkitSpeechChange"},C.uS)
-C.qr=I.makeConstantList(["!",":",",",")","]","}","?","||","&&","|","^","&","!=","==",">=",">","<=","<","+","-","%","/","*","(","[",".","{"])
-C.dj=new H.LP(27,{"!":0,":":0,",":0,")":0,"]":0,"}":0,"?":1,"||":2,"&&":3,"|":4,"^":5,"&":6,"!=":7,"==":7,">=":8,">":8,"<=":8,"<":8,"+":9,"-":9,"%":10,"/":10,"*":10,"(":11,"[":11,".":11,"{":11},C.qr)
+C.p5=I.makeConstantList(["!",":",",",")","]","}","?","||","&&","|","^","&","!=","==",">=",">","<=","<","+","-","%","/","*","(","[",".","{"])
+C.dj=new H.LP(27,{"!":0,":":0,",":0,")":0,"]":0,"}":0,"?":1,"||":2,"&&":3,"|":4,"^":5,"&":6,"!=":7,"==":7,">=":8,">":8,"<=":8,"<":8,"+":9,"-":9,"%":10,"/":10,"*":10,"(":11,"[":11,".":11,"{":11},C.p5)
 C.pa=I.makeConstantList(["name","extends","constructor","noscript","attributes"])
 C.kr=new H.LP(5,{name:1,extends:1,constructor:1,noscript:1,attributes:1},C.pa)
 C.ME=I.makeConstantList(["enumerate"])
 C.va=new H.LP(1,{enumerate:K.ZO},C.ME)
-C.Wp=L.BK.prototype
+C.Wp=L.Nh.prototype
 C.Xg=Q.ih.prototype
 C.t5=W.BH.prototype
 C.k0=V.F1.prototype
@@ -21378,18 +20915,18 @@
 C.Je=new H.GD("current")
 C.h1=new H.GD("currentHash")
 C.tv=new H.GD("currentHashUri")
+C.Na=new H.GD("devtools")
 C.Jw=new H.GD("displayValue")
 C.nN=new H.GD("dynamic")
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+C.YU=new H.GD("error")
 C.Yn=new H.GD("error_obj")
 C.WQ=new H.GD("field")
 C.nf=new H.GD("function")
 C.AZ=new H.GD("dart.core.String")
 C.Di=new H.GD("iconClass")
 C.EN=new H.GD("id")
+C.fn=new H.GD("instance")
 C.eJ=new H.GD("instruction")
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-C.nZ=new H.GD("isNotEmpty")
 C.Y2=new H.GD("isolate")
 C.Gd=new H.GD("json")
 C.fy=new H.GD("kind")
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 C.wa=new H.Lm(C.vO,"V",0)
 C.Ti=H.mm('wn')
 C.Mt=new H.Lm(C.Ti,"E",0)
-C.qM=H.mm('F1')
+C.Ye=H.mm('hx')
+C.G6=H.mm('F1')
+C.NM=H.mm('Nh')
 C.nY=H.mm('a')
 C.Yc=H.mm('iP')
 C.LN=H.mm('Be')
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 C.Op=H.mm('G8')
 C.xF=H.mm('NQ')
 C.b4=H.mm('ih')
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+C.Ob=H.mm('kK')
 C.hG=H.mm('ir')
 C.aj=H.mm('fI')
 C.dA=H.mm('Ms')
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 C.xE=H.mm('aC')
 C.yw=H.mm('int')
 C.vuj=H.mm('uw')
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 C.CT=H.mm('St')
 C.Q4=H.mm('uL')
 C.yQ=H.mm('EH')
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 C.yg=H.mm('I3')
 C.XU=H.mm('i6')
 C.Bm=H.mm('XP')
+C.Wz=H.mm('pR')
 C.HL=H.mm('bool')
 C.HH=H.mm('dynamic')
 C.Gp=H.mm('cw')
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+C.mnH=H.mm('Ds')
 C.CS=H.mm('vm')
 C.XK=H.mm('Gk')
 C.GX=H.mm('c8')
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 C.vB=J.is.prototype
 C.dy=new P.z0(!1)
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 J.EY=function(a,b){return J.RE(a).od(a,b)}
 J.Eg=function(a,b){return J.rY(a).Tc(a,b)}
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 J.GP=function(a){return J.w1(a).gA(a)}
+J.GS=function(a,b,c,d){return J.RE(a).rJ(a,b,c,d)}
 J.GW=function(a){return J.RE(a).gn4(a)}
 J.H4=function(a,b){return J.RE(a).wR(a,b)}
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 J.I8=function(a,b,c){return J.rY(a).wL(a,b,c)}
 J.Ib=function(a){return J.RE(a).gqh(a)}
+J.Ih=function(a,b,c){return J.RE(a).X6(a,b,c)}
 J.Ir=function(a){return J.RE(a).gHs(a)}
 J.Iz=function(a){return J.RE(a).gfY(a)}
 J.J5=function(a,b){if(typeof a=="number"&&typeof b=="number")return a>=b
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 J.Vm=function(a){return J.RE(a).gP(a)}
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 J.WI=function(a){return J.RE(a).gG3(a)}
 J.We=function(a,b){return J.RE(a).scC(a,b)}
+J.Xf=function(a,b){return J.RE(a).oo(a,b)}
 J.Y5=function(a){return J.RE(a).gyT(a)}
 J.Z0=function(a){return J.RE(a).ghr(a)}
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 J.bi=function(a,b){return J.w1(a).h(a,b)}
 J.bs=function(a){return J.RE(a).JP(a)}
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 J.c9=function(a,b){return J.RE(a).sa4(a,b)}
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 J.vo=function(a,b){return J.w1(a).ev(a,b)}
 J.w8=function(a){return J.RE(a).gkc(a)}
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 I.$lazy($,"globalThis","DX","jk",function(){return function() { return this; }()})
 I.$lazy($,"globalWindow","pG","Qm",function(){return $.jk().window})
 I.$lazy($,"globalWorker","zA","Nl",function(){return $.jk().Worker})
@@ -21689,7 +21230,6 @@
 I.$lazy($,"_waitSuper","uv","xY",function(){return P.L5(null,null,null,J.O,[J.Q,A.XP])})
 I.$lazy($,"_declarations","EJ","cd",function(){return P.L5(null,null,null,J.O,A.XP)})
 I.$lazy($,"_objectType","Cy","Tf",function(){return P.re(C.nY)})
-I.$lazy($,"_sheetLog","Fa","vM",function(){return N.Jx("polymer.stylesheet")})
 I.$lazy($,"_reverseEventTranslations","fp","pT",function(){return new A.w12().call$0()})
 I.$lazy($,"bindPattern","ZA","VC",function(){return new H.VR(H.v4("\\{\\{([^{}]*)}}",!1,!0,!1),null,null)})
 I.$lazy($,"_polymerSyntax","Df","Nd",function(){var z=P.L5(null,null,null,J.O,P.a)
@@ -21723,7 +21263,7 @@
 return z.t(z,y)})
 I.$lazy($,"_mangledNameField","AU","av",function(){return new M.w13().call$0()})
 I.$lazy($,"_logger","Kp","IS",function(){return N.Jx("polymer_expressions")})
-I.$lazy($,"_BINARY_OPERATORS","AM","e6",function(){return H.B7(["+",new K.wJY(),"-",new K.zOQ(),"*",new K.W6o(),"/",new K.MdQ(),"==",new K.YJG(),"!=",new K.DOe(),">",new K.lPa(),">=",new K.Ufa(),"<",new K.Raa(),"<=",new K.w0(),"||",new K.w4(),"&&",new K.w5(),"|",new K.w7()],P.L5(null,null,null,null,null))})
+I.$lazy($,"_BINARY_OPERATORS","tB","bF",function(){return H.B7(["+",new K.wJY(),"-",new K.zOQ(),"*",new K.W6o(),"/",new K.MdQ(),"==",new K.YJG(),"!=",new K.DOe(),">",new K.lPa(),">=",new K.Ufa(),"<",new K.Raa(),"<=",new K.w0(),"||",new K.w4(),"&&",new K.w5(),"|",new K.w7()],P.L5(null,null,null,null,null))})
 I.$lazy($,"_UNARY_OPERATORS","ju","YG",function(){return H.B7(["+",new K.w9(),"-",new K.w10(),"!",new K.w11()],P.L5(null,null,null,null,null))})
 I.$lazy($,"_checkboxEventType","S8","FF",function(){return new M.Uf().call$0()})
 I.$lazy($,"_contentsOwner","mn","LQ",function(){var z=new P.kM(null)
@@ -21736,7 +21276,7 @@
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+init.metadata=[P.a,C.wK,C.wa,C.WX,C.Mt,C.wW,P.uq,"name",J.O,Z.aC,F.Be,R.i6,W.K5,E.Fv,F.I3,D.qr,A.Gk,N.Ds,B.pR,Z.hx,L.u7,D.St,Z.vj,M.CX,L.Nh,Q.ih,V.F1,Z.uL,[K.Ae,3],"index",J.im,"value",3,Q.NQ,U.fI,X.kK,X.uw,P.L8,C.nJ,C.Us,,Z.Vf,F.tu,C.mI,J.kn,"r","e",W.ea,"detail","target",W.KV,R.Vc,[P.L8,P.wv,P.RS],[J.Q,H.Zk],"methodOwner",P.NL,[J.Q,P.RY],"fieldOwner",[P.L8,P.wv,P.RY],[P.L8,P.wv,P.QF],[P.L8,P.wv,P.NL],P.vr,"fieldName",P.wv,"arg",H.Uz,[J.Q,P.vr],P.Ms,"memberName","positionalArguments",J.Q,"namedArguments",[P.L8,P.wv,null],[J.Q,P.Ms],"owner",[J.Q,P.Fw],[J.Q,P.L9u],H.Un,"key",P.QF,H.Tp,"tv","i",E.WZ,F.pv,D.Vfx,A.Dsd,N.tuj,B.Vct,Z.D13,D.WZq,"oldValue",Z.pva,M.cda,"m",[J.Q,P.L8],P.iD,"l","objectId","cid","isolateId",[J.Q,L.Zw],V.waa,L.mL,Z.Nr,5,"newValue",4,[P.cX,1],[P.cX,2],2,1,"v",U.V0,L.Pf,X.V4,X.V6,];$=null
 I = I.$finishIsolateConstructor(I)
 $=new I()
 function convertToFastObject(properties) {
@@ -21798,9 +21338,9 @@
   init.currentScript = currentScript;
 
   if (typeof dartMainRunner === "function") {
-    dartMainRunner(function() { H.Vg(E.qg); });
+    dartMainRunner(function() { H.SG(E.qg); });
   } else {
-    H.Vg(E.qg);
+    H.SG(E.qg);
   }
 })
 function init(){I.p={}
@@ -22024,6 +21564,7 @@
 $desc=$collectedClasses.OM
 if($desc instanceof Array)$desc=$desc[1]
 OM.prototype=$desc
+OM.prototype.gRn=function(receiver){return receiver.data}
 OM.prototype.gB=function(receiver){return receiver.length}
 function QQ(){}QQ.builtin$cls="QQ"
 if(!"name" in QQ)QQ.name="QQ"
@@ -22041,16 +21582,17 @@
 $desc=$collectedClasses.y4
 if($desc instanceof Array)$desc=$desc[1]
 y4.prototype=$desc
+y4.prototype.gRn=function(receiver){return receiver.data}
 function d7(){}d7.builtin$cls="d7"
 if(!"name" in d7)d7.name="d7"
 $desc=$collectedClasses.d7
 if($desc instanceof Array)$desc=$desc[1]
 d7.prototype=$desc
-function Rb(){}Rb.builtin$cls="Rb"
-if(!"name" in Rb)Rb.name="Rb"
-$desc=$collectedClasses.Rb
+function na(){}na.builtin$cls="na"
+if(!"name" in na)na.name="na"
+$desc=$collectedClasses.na
 if($desc instanceof Array)$desc=$desc[1]
-Rb.prototype=$desc
+na.prototype=$desc
 function oJ(){}oJ.builtin$cls="oJ"
 if(!"name" in oJ)oJ.name="oJ"
 $desc=$collectedClasses.oJ
@@ -22097,11 +21639,11 @@
 $desc=$collectedClasses.Wy
 if($desc instanceof Array)$desc=$desc[1]
 Wy.prototype=$desc
-function QF(){}QF.builtin$cls="QF"
-if(!"name" in QF)QF.name="QF"
-$desc=$collectedClasses.QF
+function YN(){}YN.builtin$cls="YN"
+if(!"name" in YN)YN.name="YN"
+$desc=$collectedClasses.YN
 if($desc instanceof Array)$desc=$desc[1]
-QF.prototype=$desc
+YN.prototype=$desc
 function bA(){}bA.builtin$cls="bA"
 if(!"name" in bA)bA.name="bA"
 $desc=$collectedClasses.bA
@@ -22112,19 +21654,19 @@
 $desc=$collectedClasses.Wq
 if($desc instanceof Array)$desc=$desc[1]
 Wq.prototype=$desc
-function rz(){}rz.builtin$cls="rz"
-if(!"name" in rz)rz.name="rz"
-$desc=$collectedClasses.rz
+function rv(){}rv.builtin$cls="rv"
+if(!"name" in rv)rv.name="rv"
+$desc=$collectedClasses.rv
 if($desc instanceof Array)$desc=$desc[1]
-rz.prototype=$desc
-rz.prototype.gG1=function(receiver){return receiver.message}
-rz.prototype.goc=function(receiver){return receiver.name}
-function Nh(){}Nh.builtin$cls="Nh"
-if(!"name" in Nh)Nh.name="Nh"
-$desc=$collectedClasses.Nh
+rv.prototype=$desc
+rv.prototype.gG1=function(receiver){return receiver.message}
+rv.prototype.goc=function(receiver){return receiver.name}
+function BK(){}BK.builtin$cls="BK"
+if(!"name" in BK)BK.name="BK"
+$desc=$collectedClasses.BK
 if($desc instanceof Array)$desc=$desc[1]
-Nh.prototype=$desc
-Nh.prototype.gG1=function(receiver){return receiver.message}
+BK.prototype=$desc
+BK.prototype.gG1=function(receiver){return receiver.message}
 function wj(){}wj.builtin$cls="wj"
 if(!"name" in wj)wj.name="wj"
 $desc=$collectedClasses.wj
@@ -22279,6 +21821,7 @@
 $desc=$collectedClasses.Sg
 if($desc instanceof Array)$desc=$desc[1]
 Sg.prototype=$desc
+Sg.prototype.gRn=function(receiver){return receiver.data}
 function pA(){}pA.builtin$cls="pA"
 if(!"name" in pA)pA.name="pA"
 $desc=$collectedClasses.pA
@@ -22392,11 +21935,11 @@
 if($desc instanceof Array)$desc=$desc[1]
 ku.prototype=$desc
 ku.prototype.gG1=function(receiver){return receiver.message}
-function Ih(){}Ih.builtin$cls="Ih"
-if(!"name" in Ih)Ih.name="Ih"
-$desc=$collectedClasses.Ih
+function KM(){}KM.builtin$cls="KM"
+if(!"name" in KM)KM.name="KM"
+$desc=$collectedClasses.KM
 if($desc instanceof Array)$desc=$desc[1]
-Ih.prototype=$desc
+KM.prototype=$desc
 function cW(){}cW.builtin$cls="cW"
 if(!"name" in cW)cW.name="cW"
 $desc=$collectedClasses.cW
@@ -22453,6 +21996,7 @@
 $desc=$collectedClasses.Hw
 if($desc instanceof Array)$desc=$desc[1]
 Hw.prototype=$desc
+Hw.prototype.gRn=function(receiver){return receiver.data}
 function bn(){}bn.builtin$cls="bn"
 if(!"name" in bn)bn.name="bn"
 $desc=$collectedClasses.bn
@@ -22516,16 +22060,17 @@
 $desc=$collectedClasses.G7
 if($desc instanceof Array)$desc=$desc[1]
 G7.prototype=$desc
+G7.prototype.gRn=function(receiver){return receiver.data}
 G7.prototype.gMB=function(receiver){return receiver.form}
 G7.prototype.goc=function(receiver){return receiver.name}
 G7.prototype.soc=function(receiver,v){return receiver.name=v}
 G7.prototype.gr9=function(receiver){return receiver.type}
 G7.prototype.sr9=function(receiver,v){return receiver.type=v}
-function kl(){}kl.builtin$cls="kl"
-if(!"name" in kl)kl.name="kl"
-$desc=$collectedClasses.kl
+function wq(){}wq.builtin$cls="wq"
+if(!"name" in wq)wq.name="wq"
+$desc=$collectedClasses.wq
 if($desc instanceof Array)$desc=$desc[1]
-kl.prototype=$desc
+wq.prototype=$desc
 function Ql(){}Ql.builtin$cls="Ql"
 if(!"name" in Ql)Ql.name="Ql"
 $desc=$collectedClasses.Ql
@@ -22660,11 +22205,11 @@
 lp.prototype.gr9=function(receiver){return receiver.type}
 lp.prototype.gP=function(receiver){return receiver.value}
 lp.prototype.sP=function(receiver,v){return receiver.value=v}
-function kd(){}kd.builtin$cls="kd"
-if(!"name" in kd)kd.name="kd"
-$desc=$collectedClasses.kd
+function pD(){}pD.builtin$cls="pD"
+if(!"name" in pD)pD.name="pD"
+$desc=$collectedClasses.pD
 if($desc instanceof Array)$desc=$desc[1]
-kd.prototype=$desc
+pD.prototype=$desc
 function I0(){}I0.builtin$cls="I0"
 if(!"name" in I0)I0.name="I0"
 $desc=$collectedClasses.I0
@@ -22781,6 +22326,7 @@
 $desc=$collectedClasses.xV
 if($desc instanceof Array)$desc=$desc[1]
 xV.prototype=$desc
+xV.prototype.gRn=function(receiver){return receiver.data}
 function FH(){}FH.builtin$cls="FH"
 if(!"name" in FH)FH.name="FH"
 $desc=$collectedClasses.FH
@@ -22851,11 +22397,11 @@
 UM.prototype.goc=function(receiver){return receiver.name}
 UM.prototype.gP=function(receiver){return receiver.value}
 UM.prototype.sP=function(receiver,v){return receiver.value=v}
-function WS(){}WS.builtin$cls="WS"
-if(!"name" in WS)WS.name="WS"
-$desc=$collectedClasses.WS
+function UL(){}UL.builtin$cls="UL"
+if(!"name" in UL)UL.name="UL"
+$desc=$collectedClasses.UL
 if($desc instanceof Array)$desc=$desc[1]
-WS.prototype=$desc
+UL.prototype=$desc
 function rq(){}rq.builtin$cls="rq"
 if(!"name" in rq)rq.name="rq"
 $desc=$collectedClasses.rq
@@ -22871,11 +22417,11 @@
 $desc=$collectedClasses.kc
 if($desc instanceof Array)$desc=$desc[1]
 kc.prototype=$desc
-function Eh(){}Eh.builtin$cls="Eh"
-if(!"name" in Eh)Eh.name="Eh"
-$desc=$collectedClasses.Eh
+function ij(){}ij.builtin$cls="ij"
+if(!"name" in ij)ij.name="ij"
+$desc=$collectedClasses.ij
 if($desc instanceof Array)$desc=$desc[1]
-Eh.prototype=$desc
+ij.prototype=$desc
 function ty(){}ty.builtin$cls="ty"
 if(!"name" in ty)ty.name="ty"
 $desc=$collectedClasses.ty
@@ -22916,11 +22462,11 @@
 $desc=$collectedClasses.hF
 if($desc instanceof Array)$desc=$desc[1]
 hF.prototype=$desc
-function yK(){}yK.builtin$cls="yK"
-if(!"name" in yK)yK.name="yK"
-$desc=$collectedClasses.yK
+function OF(){}OF.builtin$cls="OF"
+if(!"name" in OF)OF.name="OF"
+$desc=$collectedClasses.OF
 if($desc instanceof Array)$desc=$desc[1]
-yK.prototype=$desc
+OF.prototype=$desc
 function HB(){}HB.builtin$cls="HB"
 if(!"name" in HB)HB.name="HB"
 $desc=$collectedClasses.HB
@@ -23047,21 +22593,21 @@
 $desc=$collectedClasses.VE
 if($desc instanceof Array)$desc=$desc[1]
 VE.prototype=$desc
-function zp(){}zp.builtin$cls="zp"
-if(!"name" in zp)zp.name="zp"
-$desc=$collectedClasses.zp
+function lc(){}lc.builtin$cls="lc"
+if(!"name" in lc)lc.name="lc"
+$desc=$collectedClasses.lc
 if($desc instanceof Array)$desc=$desc[1]
-zp.prototype=$desc
+lc.prototype=$desc
 function Xu(){}Xu.builtin$cls="Xu"
 if(!"name" in Xu)Xu.name="Xu"
 $desc=$collectedClasses.Xu
 if($desc instanceof Array)$desc=$desc[1]
 Xu.prototype=$desc
-function lu(){}lu.builtin$cls="lu"
-if(!"name" in lu)lu.name="lu"
-$desc=$collectedClasses.lu
+function qM(){}qM.builtin$cls="qM"
+if(!"name" in qM)qM.name="qM"
+$desc=$collectedClasses.qM
 if($desc instanceof Array)$desc=$desc[1]
-lu.prototype=$desc
+qM.prototype=$desc
 function tk(){}tk.builtin$cls="tk"
 if(!"name" in tk)tk.name="tk"
 $desc=$collectedClasses.tk
@@ -23078,11 +22624,11 @@
 $desc=$collectedClasses.qN
 if($desc instanceof Array)$desc=$desc[1]
 qN.prototype=$desc
-function NY(){}NY.builtin$cls="NY"
-if(!"name" in NY)NY.name="NY"
-$desc=$collectedClasses.NY
+function nh(){}nh.builtin$cls="nh"
+if(!"name" in nh)nh.name="nh"
+$desc=$collectedClasses.nh
 if($desc instanceof Array)$desc=$desc[1]
-NY.prototype=$desc
+nh.prototype=$desc
 function d4(){}d4.builtin$cls="d4"
 if(!"name" in d4)d4.name="d4"
 $desc=$collectedClasses.d4
@@ -23136,11 +22682,11 @@
 $desc=$collectedClasses.BA
 if($desc instanceof Array)$desc=$desc[1]
 BA.prototype=$desc
-function tp(){}tp.builtin$cls="tp"
-if(!"name" in tp)tp.name="tp"
-$desc=$collectedClasses.tp
+function zp(){}zp.builtin$cls="zp"
+if(!"name" in zp)zp.name="zp"
+$desc=$collectedClasses.zp
 if($desc instanceof Array)$desc=$desc[1]
-tp.prototype=$desc
+zp.prototype=$desc
 function rE(){}rE.builtin$cls="rE"
 if(!"name" in rE)rE.name="rE"
 $desc=$collectedClasses.rE
@@ -23268,13 +22814,13 @@
 $desc=$collectedClasses.MT
 if($desc instanceof Array)$desc=$desc[1]
 MT.prototype=$desc
-function xN(){}xN.builtin$cls="xN"
-if(!"name" in xN)xN.name="xN"
-$desc=$collectedClasses.xN
+function Rk(){}Rk.builtin$cls="Rk"
+if(!"name" in Rk)Rk.name="Rk"
+$desc=$collectedClasses.Rk
 if($desc instanceof Array)$desc=$desc[1]
-xN.prototype=$desc
-xN.prototype.gbP=function(receiver){return receiver.method}
-xN.prototype.gLU=function(receiver){return receiver.href}
+Rk.prototype=$desc
+Rk.prototype.gbP=function(receiver){return receiver.method}
+Rk.prototype.gLU=function(receiver){return receiver.href}
 function Eo(){}Eo.builtin$cls="Eo"
 if(!"name" in Eo)Eo.name="Eo"
 $desc=$collectedClasses.Eo
@@ -23285,12 +22831,12 @@
 $desc=$collectedClasses.Dn
 if($desc instanceof Array)$desc=$desc[1]
 Dn.prototype=$desc
-function ox(){}ox.builtin$cls="ox"
-if(!"name" in ox)ox.name="ox"
-$desc=$collectedClasses.ox
+function UD(){}UD.builtin$cls="UD"
+if(!"name" in UD)UD.name="UD"
+$desc=$collectedClasses.UD
 if($desc instanceof Array)$desc=$desc[1]
-ox.prototype=$desc
-ox.prototype.gLU=function(receiver){return receiver.href}
+UD.prototype=$desc
+UD.prototype.gLU=function(receiver){return receiver.href}
 function ZD(){}ZD.builtin$cls="ZD"
 if(!"name" in ZD)ZD.name="ZD"
 $desc=$collectedClasses.ZD
@@ -23337,11 +22883,11 @@
 $desc=$collectedClasses.cB
 if($desc instanceof Array)$desc=$desc[1]
 cB.prototype=$desc
-function k2(){}k2.builtin$cls="k2"
-if(!"name" in k2)k2.name="k2"
-$desc=$collectedClasses.k2
+function uY(){}uY.builtin$cls="uY"
+if(!"name" in uY)uY.name="uY"
+$desc=$collectedClasses.uY
 if($desc instanceof Array)$desc=$desc[1]
-k2.prototype=$desc
+uY.prototype=$desc
 function yR(){}yR.builtin$cls="yR"
 if(!"name" in yR)yR.name="yR"
 $desc=$collectedClasses.yR
@@ -23419,6 +22965,11 @@
 Cf.prototype=$desc
 Cf.prototype.gtT=function(receiver){return receiver.code}
 Cf.prototype.gG1=function(receiver){return receiver.message}
+function I2(){}I2.builtin$cls="I2"
+if(!"name" in I2)I2.name="I2"
+$desc=$collectedClasses.I2
+if($desc instanceof Array)$desc=$desc[1]
+I2.prototype=$desc
 function AS(){}AS.builtin$cls="AS"
 if(!"name" in AS)AS.name="AS"
 $desc=$collectedClasses.AS
@@ -23500,11 +23051,11 @@
 $desc=$collectedClasses.QI
 if($desc instanceof Array)$desc=$desc[1]
 QI.prototype=$desc
-function Tm(){}Tm.builtin$cls="Tm"
-if(!"name" in Tm)Tm.name="Tm"
-$desc=$collectedClasses.Tm
+function FP(){}FP.builtin$cls="FP"
+if(!"name" in FP)FP.name="FP"
+$desc=$collectedClasses.FP
 if($desc instanceof Array)$desc=$desc[1]
-Tm.prototype=$desc
+FP.prototype=$desc
 function is(){}is.builtin$cls="is"
 if(!"name" in is)is.name="is"
 $desc=$collectedClasses.is
@@ -23600,8 +23151,8 @@
 $desc=$collectedClasses.RA
 if($desc instanceof Array)$desc=$desc[1]
 RA.prototype=$desc
-function IY(F1,xh,G1){this.F1=F1
-this.xh=xh
+function IY(F1,i3,G1){this.F1=F1
+this.i3=i3
 this.G1=G1}IY.builtin$cls="IY"
 if(!"name" in IY)IY.name="IY"
 $desc=$collectedClasses.IY
@@ -24026,10 +23577,10 @@
 $desc=$collectedClasses.tQ
 if($desc instanceof Array)$desc=$desc[1]
 tQ.prototype=$desc
-function aC(FJ,VJ,Ai,hm,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM){this.FJ=FJ
+function aC(FJ,VJ,Ai,tH,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM){this.FJ=FJ
 this.VJ=VJ
 this.Ai=Ai
-this.hm=hm
+this.tH=tH
 this.VJ=VJ
 this.Ai=Ai
 this.VJ=VJ
@@ -24055,10 +23606,10 @@
 $desc=$collectedClasses.Vf
 if($desc instanceof Array)$desc=$desc[1]
 Vf.prototype=$desc
-function Be(Zw,VJ,Ai,hm,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM){this.Zw=Zw
+function Be(Zw,VJ,Ai,tH,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM){this.Zw=Zw
 this.VJ=VJ
 this.Ai=Ai
-this.hm=hm
+this.tH=tH
 this.VJ=VJ
 this.Ai=Ai
 this.VJ=VJ
@@ -24084,12 +23635,12 @@
 $desc=$collectedClasses.tu
 if($desc instanceof Array)$desc=$desc[1]
 tu.prototype=$desc
-function i6(zh,HX,Uy,VJ,Ai,hm,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM){this.zh=zh
-this.HX=HX
-this.Uy=Uy
+function i6(Xf,VA,P2,VJ,Ai,tH,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM){this.Xf=Xf
+this.VA=VA
+this.P2=P2
 this.VJ=VJ
 this.Ai=Ai
-this.hm=hm
+this.tH=tH
 this.VJ=VJ
 this.Ai=Ai
 this.VJ=VJ
@@ -24106,18 +23657,18 @@
 $desc=$collectedClasses.i6
 if($desc instanceof Array)$desc=$desc[1]
 i6.prototype=$desc
-i6.prototype.gzh=function(receiver){return receiver.zh}
-i6.prototype.gzh.$reflectable=1
-i6.prototype.szh=function(receiver,v){return receiver.zh=v}
-i6.prototype.szh.$reflectable=1
-i6.prototype.gHX=function(receiver){return receiver.HX}
-i6.prototype.gHX.$reflectable=1
-i6.prototype.sHX=function(receiver,v){return receiver.HX=v}
-i6.prototype.sHX.$reflectable=1
-i6.prototype.gUy=function(receiver){return receiver.Uy}
-i6.prototype.gUy.$reflectable=1
-i6.prototype.sUy=function(receiver,v){return receiver.Uy=v}
-i6.prototype.sUy.$reflectable=1
+i6.prototype.gXf=function(receiver){return receiver.Xf}
+i6.prototype.gXf.$reflectable=1
+i6.prototype.sXf=function(receiver,v){return receiver.Xf=v}
+i6.prototype.sXf.$reflectable=1
+i6.prototype.gVA=function(receiver){return receiver.VA}
+i6.prototype.gVA.$reflectable=1
+i6.prototype.sVA=function(receiver,v){return receiver.VA=v}
+i6.prototype.sVA.$reflectable=1
+i6.prototype.gP2=function(receiver){return receiver.P2}
+i6.prototype.gP2.$reflectable=1
+i6.prototype.sP2=function(receiver,v){return receiver.P2=v}
+i6.prototype.sP2.$reflectable=1
 function Vc(){}Vc.builtin$cls="Vc"
 if(!"name" in Vc)Vc.name="Vc"
 $desc=$collectedClasses.Vc
@@ -24199,12 +23750,12 @@
 $desc=$collectedClasses.rR
 if($desc instanceof Array)$desc=$desc[1]
 rR.prototype=$desc
-function vZ(Kw,xZ){this.Kw=Kw
-this.xZ=xZ}vZ.builtin$cls="vZ"
-if(!"name" in vZ)vZ.name="vZ"
-$desc=$collectedClasses.vZ
+function AM(Kw,xZ){this.Kw=Kw
+this.xZ=xZ}AM.builtin$cls="AM"
+if(!"name" in AM)AM.name="AM"
+$desc=$collectedClasses.AM
 if($desc instanceof Array)$desc=$desc[1]
-vZ.prototype=$desc
+AM.prototype=$desc
 function d5(Kw,xZ){this.Kw=Kw
 this.xZ=xZ}d5.builtin$cls="d5"
 if(!"name" in d5)d5.name="d5"
@@ -24393,11 +23944,11 @@
 $desc=$collectedClasses.bl
 if($desc instanceof Array)$desc=$desc[1]
 bl.prototype=$desc
-function tB(a){this.a=a}tB.builtin$cls="tB"
-if(!"name" in tB)tB.name="tB"
-$desc=$collectedClasses.tB
+function Ef(a){this.a=a}Ef.builtin$cls="Ef"
+if(!"name" in Ef)Ef.name="Ef"
+$desc=$collectedClasses.Ef
 if($desc instanceof Array)$desc=$desc[1]
-tB.prototype=$desc
+Ef.prototype=$desc
 function Oo(){}Oo.builtin$cls="Oo"
 if(!"name" in Oo)Oo.name="Oo"
 $desc=$collectedClasses.Oo
@@ -24413,7 +23964,7 @@
 $desc=$collectedClasses.Ax
 if($desc instanceof Array)$desc=$desc[1]
 Ax.prototype=$desc
-function Wf(Cr,Tx,H8,Ht,pz,le,qN,jd,tB,b0,FU,T1,Ly,M2,uA,Db,Ok,qm,UF,nz,If){this.Cr=Cr
+function Wf(WL,Tx,H8,Ht,pz,le,qN,jd,tB,b0,FU,T1,Ly,M2,uA,Db,Ok,qm,UF,nz,If){this.WL=WL
 this.Tx=Tx
 this.H8=H8
 this.Ht=Ht
@@ -24438,8 +23989,8 @@
 $desc=$collectedClasses.Wf
 if($desc instanceof Array)$desc=$desc[1]
 Wf.prototype=$desc
-Wf.prototype.gCr=function(){return this.Cr}
-Wf.prototype.gCr.$reflectable=1
+Wf.prototype.gWL=function(){return this.WL}
+Wf.prototype.gWL.$reflectable=1
 Wf.prototype.gTx=function(){return this.Tx}
 Wf.prototype.gTx.$reflectable=1
 Wf.prototype.gH8=function(){return this.H8}
@@ -24547,7 +24098,7 @@
 $desc=$collectedClasses.Sz
 if($desc instanceof Array)$desc=$desc[1]
 Sz.prototype=$desc
-function Zk(dl,Yq,lT,hB,Fo,xV,qx,nz,le,G6,H3,If){this.dl=dl
+function Zk(dl,Yq,lT,hB,Fo,xV,qx,nz,le,G6,Cr,If){this.dl=dl
 this.Yq=Yq
 this.lT=lT
 this.hB=hB
@@ -24557,7 +24108,7 @@
 this.nz=nz
 this.le=le
 this.G6=G6
-this.H3=H3
+this.Cr=Cr
 this.If=If}Zk.builtin$cls="Zk"
 if(!"name" in Zk)Zk.name="Zk"
 $desc=$collectedClasses.Zk
@@ -24575,14 +24126,14 @@
 if($desc instanceof Array)$desc=$desc[1]
 fu.prototype=$desc
 fu.prototype.gh7=function(){return this.h7}
-function ng(Cr,CM,If){this.Cr=Cr
+function ng(WL,CM,If){this.WL=WL
 this.CM=CM
 this.If=If}ng.builtin$cls="ng"
 if(!"name" in ng)ng.name="ng"
 $desc=$collectedClasses.ng
 if($desc instanceof Array)$desc=$desc[1]
 ng.prototype=$desc
-ng.prototype.gCr=function(){return this.Cr}
+ng.prototype.gWL=function(){return this.WL}
 function Ar(d9,o3,yA,zM,h7){this.d9=d9
 this.o3=o3
 this.yA=yA
@@ -25199,13 +24750,13 @@
 $desc=$collectedClasses.fB
 if($desc instanceof Array)$desc=$desc[1]
 fB.prototype=$desc
-function eO(wc,nn,lv,Pp){this.wc=wc
+function bq(wc,nn,lv,Pp){this.wc=wc
 this.nn=nn
 this.lv=lv
-this.Pp=Pp}eO.builtin$cls="eO"
-$desc=$collectedClasses.eO
+this.Pp=Pp}bq.builtin$cls="bq"
+$desc=$collectedClasses.bq
 if($desc instanceof Array)$desc=$desc[1]
-eO.prototype=$desc
+bq.prototype=$desc
 function nO(qs,Sb){this.qs=qs
 this.Sb=Sb}nO.builtin$cls="nO"
 if(!"name" in nO)nO.name="nO"
@@ -25692,26 +25243,56 @@
 $desc=$collectedClasses.ob
 if($desc instanceof Array)$desc=$desc[1]
 ob.prototype=$desc
+function Ud(Ct,FN){this.Ct=Ct
+this.FN=FN}Ud.builtin$cls="Ud"
+if(!"name" in Ud)Ud.name="Ud"
+$desc=$collectedClasses.Ud
+if($desc instanceof Array)$desc=$desc[1]
+Ud.prototype=$desc
+function K8(Ct,FN){this.Ct=Ct
+this.FN=FN}K8.builtin$cls="K8"
+if(!"name" in K8)K8.name="K8"
+$desc=$collectedClasses.K8
+if($desc instanceof Array)$desc=$desc[1]
+K8.prototype=$desc
 function by(){}by.builtin$cls="by"
 if(!"name" in by)by.name="by"
 $desc=$collectedClasses.by
 if($desc instanceof Array)$desc=$desc[1]
 by.prototype=$desc
+function dI(ke){this.ke=ke}dI.builtin$cls="dI"
+if(!"name" in dI)dI.name="dI"
+$desc=$collectedClasses.dI
+if($desc instanceof Array)$desc=$desc[1]
+dI.prototype=$desc
 function QM(N5){this.N5=N5}QM.builtin$cls="QM"
 if(!"name" in QM)QM.name="QM"
 $desc=$collectedClasses.QM
 if($desc instanceof Array)$desc=$desc[1]
 QM.prototype=$desc
+function Sh(WE,u4,JN){this.WE=WE
+this.u4=u4
+this.JN=JN}Sh.builtin$cls="Sh"
+if(!"name" in Sh)Sh.name="Sh"
+$desc=$collectedClasses.Sh
+if($desc instanceof Array)$desc=$desc[1]
+Sh.prototype=$desc
+function tF(a,b){this.a=a
+this.b=b}tF.builtin$cls="tF"
+if(!"name" in tF)tF.name="tF"
+$desc=$collectedClasses.tF
+if($desc instanceof Array)$desc=$desc[1]
+tF.prototype=$desc
 function z0(lH){this.lH=lH}z0.builtin$cls="z0"
 if(!"name" in z0)z0.name="z0"
 $desc=$collectedClasses.z0
 if($desc instanceof Array)$desc=$desc[1]
 z0.prototype=$desc
-function E3(){}E3.builtin$cls="E3"
-if(!"name" in E3)E3.name="E3"
-$desc=$collectedClasses.E3
+function Vx(){}Vx.builtin$cls="Vx"
+if(!"name" in Vx)Vx.name="Vx"
+$desc=$collectedClasses.Vx
 if($desc instanceof Array)$desc=$desc[1]
-E3.prototype=$desc
+Vx.prototype=$desc
 function Rw(vn,An,EN){this.vn=vn
 this.An=An
 this.EN=EN}Rw.builtin$cls="Rw"
@@ -25744,11 +25325,11 @@
 $desc=$collectedClasses.CL
 if($desc instanceof Array)$desc=$desc[1]
 CL.prototype=$desc
-function K8(OF){this.OF=OF}K8.builtin$cls="K8"
-if(!"name" in K8)K8.name="K8"
-$desc=$collectedClasses.K8
+function uA(OF){this.OF=OF}uA.builtin$cls="uA"
+if(!"name" in uA)uA.name="uA"
+$desc=$collectedClasses.uA
 if($desc instanceof Array)$desc=$desc[1]
-K8.prototype=$desc
+uA.prototype=$desc
 function a2(){}a2.builtin$cls="a2"
 if(!"name" in a2)a2.name="a2"
 $desc=$collectedClasses.a2
@@ -26075,11 +25656,11 @@
 $desc=$collectedClasses.BV
 if($desc instanceof Array)$desc=$desc[1]
 BV.prototype=$desc
-function id(){}id.builtin$cls="id"
-if(!"name" in id)id.name="id"
-$desc=$collectedClasses.id
+function E1(){}E1.builtin$cls="E1"
+if(!"name" in E1)E1.name="E1"
+$desc=$collectedClasses.E1
 if($desc instanceof Array)$desc=$desc[1]
-id.prototype=$desc
+E1.prototype=$desc
 function wz(Sn,Sc){this.Sn=Sn
 this.Sc=Sc}wz.builtin$cls="wz"
 if(!"name" in wz)wz.name="wz"
@@ -26291,12 +25872,12 @@
 $desc=$collectedClasses.W9
 if($desc instanceof Array)$desc=$desc[1]
 W9.prototype=$desc
-function uY(a,b){this.a=a
-this.b=b}uY.builtin$cls="uY"
-if(!"name" in uY)uY.name="uY"
-$desc=$collectedClasses.uY
+function vZ(a,b){this.a=a
+this.b=b}vZ.builtin$cls="vZ"
+if(!"name" in vZ)vZ.name="vZ"
+$desc=$collectedClasses.vZ
 if($desc instanceof Array)$desc=$desc[1]
-uY.prototype=$desc
+vZ.prototype=$desc
 function dW(Ui){this.Ui=Ui}dW.builtin$cls="dW"
 if(!"name" in dW)dW.name="dW"
 $desc=$collectedClasses.dW
@@ -26367,11 +25948,11 @@
 $desc=$collectedClasses.QS
 if($desc instanceof Array)$desc=$desc[1]
 QS.prototype=$desc
-function ej(){}ej.builtin$cls="ej"
-if(!"name" in ej)ej.name="ej"
-$desc=$collectedClasses.ej
+function QF(){}QF.builtin$cls="QF"
+if(!"name" in QF)QF.name="QF"
+$desc=$collectedClasses.QF
 if($desc instanceof Array)$desc=$desc[1]
-ej.prototype=$desc
+QF.prototype=$desc
 function NL(){}NL.builtin$cls="NL"
 if(!"name" in NL)NL.name="NL"
 $desc=$collectedClasses.NL
@@ -26475,41 +26056,41 @@
 $desc=$collectedClasses.RKu
 if($desc instanceof Array)$desc=$desc[1]
 RKu.prototype=$desc
-function na(){}na.builtin$cls="na"
-if(!"name" in na)na.name="na"
-$desc=$collectedClasses.na
-if($desc instanceof Array)$desc=$desc[1]
-na.prototype=$desc
-function TkQ(){}TkQ.builtin$cls="TkQ"
-if(!"name" in TkQ)TkQ.name="TkQ"
-$desc=$collectedClasses.TkQ
-if($desc instanceof Array)$desc=$desc[1]
-TkQ.prototype=$desc
 function xGn(){}xGn.builtin$cls="xGn"
 if(!"name" in xGn)xGn.name="xGn"
 $desc=$collectedClasses.xGn
 if($desc instanceof Array)$desc=$desc[1]
 xGn.prototype=$desc
-function ZKG(){}ZKG.builtin$cls="ZKG"
-if(!"name" in ZKG)ZKG.name="ZKG"
-$desc=$collectedClasses.ZKG
+function TkQ(){}TkQ.builtin$cls="TkQ"
+if(!"name" in TkQ)TkQ.name="TkQ"
+$desc=$collectedClasses.TkQ
 if($desc instanceof Array)$desc=$desc[1]
-ZKG.prototype=$desc
+TkQ.prototype=$desc
 function VWk(){}VWk.builtin$cls="VWk"
 if(!"name" in VWk)VWk.name="VWk"
 $desc=$collectedClasses.VWk
 if($desc instanceof Array)$desc=$desc[1]
 VWk.prototype=$desc
-function w6W(){}w6W.builtin$cls="w6W"
-if(!"name" in w6W)w6W.name="w6W"
-$desc=$collectedClasses.w6W
+function ZKG(){}ZKG.builtin$cls="ZKG"
+if(!"name" in ZKG)ZKG.name="ZKG"
+$desc=$collectedClasses.ZKG
 if($desc instanceof Array)$desc=$desc[1]
-w6W.prototype=$desc
+ZKG.prototype=$desc
 function DHb(){}DHb.builtin$cls="DHb"
 if(!"name" in DHb)DHb.name="DHb"
 $desc=$collectedClasses.DHb
 if($desc instanceof Array)$desc=$desc[1]
 DHb.prototype=$desc
+function w6W(){}w6W.builtin$cls="w6W"
+if(!"name" in w6W)w6W.name="w6W"
+$desc=$collectedClasses.w6W
+if($desc instanceof Array)$desc=$desc[1]
+w6W.prototype=$desc
+function Hna(){}Hna.builtin$cls="Hna"
+if(!"name" in Hna)Hna.name="Hna"
+$desc=$collectedClasses.Hna
+if($desc instanceof Array)$desc=$desc[1]
+Hna.prototype=$desc
 function z9g(){}z9g.builtin$cls="z9g"
 if(!"name" in z9g)z9g.name="z9g"
 $desc=$collectedClasses.z9g
@@ -26525,10 +26106,10 @@
 $desc=$collectedClasses.UZ
 if($desc instanceof Array)$desc=$desc[1]
 UZ.prototype=$desc
-function Fv(FT,VJ,Ai,hm,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM){this.FT=FT
+function Fv(FT,VJ,Ai,tH,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM){this.FT=FT
 this.VJ=VJ
 this.Ai=Ai
-this.hm=hm
+this.tH=tH
 this.VJ=VJ
 this.Ai=Ai
 this.VJ=VJ
@@ -26554,11 +26135,11 @@
 $desc=$collectedClasses.WZ
 if($desc instanceof Array)$desc=$desc[1]
 WZ.prototype=$desc
-function I3(Py,hO,VJ,Ai,hm,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM){this.Py=Py
+function I3(Py,hO,VJ,Ai,tH,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM){this.Py=Py
 this.hO=hO
 this.VJ=VJ
 this.Ai=Ai
-this.hm=hm
+this.tH=tH
 this.VJ=VJ
 this.Ai=Ai
 this.VJ=VJ
@@ -26588,10 +26169,39 @@
 $desc=$collectedClasses.pv
 if($desc instanceof Array)$desc=$desc[1]
 pv.prototype=$desc
-function Gk(vt,VJ,Ai,hm,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM){this.vt=vt
+function qr(Lf,VJ,Ai,tH,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM){this.Lf=Lf
 this.VJ=VJ
 this.Ai=Ai
-this.hm=hm
+this.tH=tH
+this.VJ=VJ
+this.Ai=Ai
+this.VJ=VJ
+this.Ai=Ai
+this.ZI=ZI
+this.uN=uN
+this.z3=z3
+this.TQ=TQ
+this.Vk=Vk
+this.Ye=Ye
+this.mT=mT
+this.KM=KM}qr.builtin$cls="qr"
+if(!"name" in qr)qr.name="qr"
+$desc=$collectedClasses.qr
+if($desc instanceof Array)$desc=$desc[1]
+qr.prototype=$desc
+qr.prototype.gLf=function(receiver){return receiver.Lf}
+qr.prototype.gLf.$reflectable=1
+qr.prototype.sLf=function(receiver,v){return receiver.Lf=v}
+qr.prototype.sLf.$reflectable=1
+function Vfx(){}Vfx.builtin$cls="Vfx"
+if(!"name" in Vfx)Vfx.name="Vfx"
+$desc=$collectedClasses.Vfx
+if($desc instanceof Array)$desc=$desc[1]
+Vfx.prototype=$desc
+function Gk(vt,VJ,Ai,tH,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM){this.vt=vt
+this.VJ=VJ
+this.Ai=Ai
+this.tH=tH
 this.VJ=VJ
 this.Ai=Ai
 this.VJ=VJ
@@ -26612,15 +26222,15 @@
 Gk.prototype.gvt.$reflectable=1
 Gk.prototype.svt=function(receiver,v){return receiver.vt=v}
 Gk.prototype.svt.$reflectable=1
-function Vfx(){}Vfx.builtin$cls="Vfx"
-if(!"name" in Vfx)Vfx.name="Vfx"
-$desc=$collectedClasses.Vfx
+function Dsd(){}Dsd.builtin$cls="Dsd"
+if(!"name" in Dsd)Dsd.name="Dsd"
+$desc=$collectedClasses.Dsd
 if($desc instanceof Array)$desc=$desc[1]
-Vfx.prototype=$desc
-function Ds(ql,VJ,Ai,hm,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM){this.ql=ql
+Dsd.prototype=$desc
+function Ds(ql,VJ,Ai,tH,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM){this.ql=ql
 this.VJ=VJ
 this.Ai=Ai
-this.hm=hm
+this.tH=tH
 this.VJ=VJ
 this.Ai=Ai
 this.VJ=VJ
@@ -26641,11 +26251,45 @@
 Ds.prototype.gql.$reflectable=1
 Ds.prototype.sql=function(receiver,v){return receiver.ql=v}
 Ds.prototype.sql.$reflectable=1
-function Dsd(){}Dsd.builtin$cls="Dsd"
-if(!"name" in Dsd)Dsd.name="Dsd"
-$desc=$collectedClasses.Dsd
+function tuj(){}tuj.builtin$cls="tuj"
+if(!"name" in tuj)tuj.name="tuj"
+$desc=$collectedClasses.tuj
 if($desc instanceof Array)$desc=$desc[1]
-Dsd.prototype=$desc
+tuj.prototype=$desc
+function aI(b,c){this.b=b
+this.c=c}aI.builtin$cls="aI"
+if(!"name" in aI)aI.name="aI"
+$desc=$collectedClasses.aI
+if($desc instanceof Array)$desc=$desc[1]
+aI.prototype=$desc
+function rG(d){this.d=d}rG.builtin$cls="rG"
+if(!"name" in rG)rG.name="rG"
+$desc=$collectedClasses.rG
+if($desc instanceof Array)$desc=$desc[1]
+rG.prototype=$desc
+function yh(e){this.e=e}yh.builtin$cls="yh"
+if(!"name" in yh)yh.name="yh"
+$desc=$collectedClasses.yh
+if($desc instanceof Array)$desc=$desc[1]
+yh.prototype=$desc
+function wO(){}wO.builtin$cls="wO"
+if(!"name" in wO)wO.name="wO"
+$desc=$collectedClasses.wO
+if($desc instanceof Array)$desc=$desc[1]
+wO.prototype=$desc
+function Tm(f,g,h){this.f=f
+this.g=g
+this.h=h}Tm.builtin$cls="Tm"
+if(!"name" in Tm)Tm.name="Tm"
+$desc=$collectedClasses.Tm
+if($desc instanceof Array)$desc=$desc[1]
+Tm.prototype=$desc
+function rz(a,i){this.a=a
+this.i=i}rz.builtin$cls="rz"
+if(!"name" in rz)rz.name="rz"
+$desc=$collectedClasses.rz
+if($desc instanceof Array)$desc=$desc[1]
+rz.prototype=$desc
 function CA(a,b){this.a=a
 this.b=b}CA.builtin$cls="CA"
 if(!"name" in CA)CA.name="CA"
@@ -26680,7 +26324,65 @@
 $desc=$collectedClasses.GE
 if($desc instanceof Array)$desc=$desc[1]
 GE.prototype=$desc
-function u7(hm,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM){this.hm=hm
+function pR(iK,VJ,Ai,tH,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM){this.iK=iK
+this.VJ=VJ
+this.Ai=Ai
+this.tH=tH
+this.VJ=VJ
+this.Ai=Ai
+this.VJ=VJ
+this.Ai=Ai
+this.ZI=ZI
+this.uN=uN
+this.z3=z3
+this.TQ=TQ
+this.Vk=Vk
+this.Ye=Ye
+this.mT=mT
+this.KM=KM}pR.builtin$cls="pR"
+if(!"name" in pR)pR.name="pR"
+$desc=$collectedClasses.pR
+if($desc instanceof Array)$desc=$desc[1]
+pR.prototype=$desc
+pR.prototype.giK=function(receiver){return receiver.iK}
+pR.prototype.giK.$reflectable=1
+pR.prototype.siK=function(receiver,v){return receiver.iK=v}
+pR.prototype.siK.$reflectable=1
+function Vct(){}Vct.builtin$cls="Vct"
+if(!"name" in Vct)Vct.name="Vct"
+$desc=$collectedClasses.Vct
+if($desc instanceof Array)$desc=$desc[1]
+Vct.prototype=$desc
+function hx(Xh,VJ,Ai,tH,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM){this.Xh=Xh
+this.VJ=VJ
+this.Ai=Ai
+this.tH=tH
+this.VJ=VJ
+this.Ai=Ai
+this.VJ=VJ
+this.Ai=Ai
+this.ZI=ZI
+this.uN=uN
+this.z3=z3
+this.TQ=TQ
+this.Vk=Vk
+this.Ye=Ye
+this.mT=mT
+this.KM=KM}hx.builtin$cls="hx"
+if(!"name" in hx)hx.name="hx"
+$desc=$collectedClasses.hx
+if($desc instanceof Array)$desc=$desc[1]
+hx.prototype=$desc
+hx.prototype.gXh=function(receiver){return receiver.Xh}
+hx.prototype.gXh.$reflectable=1
+hx.prototype.sXh=function(receiver,v){return receiver.Xh=v}
+hx.prototype.sXh.$reflectable=1
+function D13(){}D13.builtin$cls="D13"
+if(!"name" in D13)D13.name="D13"
+$desc=$collectedClasses.D13
+if($desc instanceof Array)$desc=$desc[1]
+D13.prototype=$desc
+function u7(tH,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM){this.tH=tH
 this.VJ=VJ
 this.Ai=Ai
 this.VJ=VJ
@@ -26697,11 +26399,11 @@
 $desc=$collectedClasses.u7
 if($desc instanceof Array)$desc=$desc[1]
 u7.prototype=$desc
-function St(Pw,i0,VJ,Ai,hm,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM){this.Pw=Pw
+function St(Pw,i0,VJ,Ai,tH,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM){this.Pw=Pw
 this.i0=i0
 this.VJ=VJ
 this.Ai=Ai
-this.hm=hm
+this.tH=tH
 this.VJ=VJ
 this.Ai=Ai
 this.VJ=VJ
@@ -26726,16 +26428,16 @@
 St.prototype.gi0.$reflectable=1
 St.prototype.si0=function(receiver,v){return receiver.i0=v}
 St.prototype.si0.$reflectable=1
-function tuj(){}tuj.builtin$cls="tuj"
-if(!"name" in tuj)tuj.name="tuj"
-$desc=$collectedClasses.tuj
+function WZq(){}WZq.builtin$cls="WZq"
+if(!"name" in WZq)WZq.name="WZq"
+$desc=$collectedClasses.WZq
 if($desc instanceof Array)$desc=$desc[1]
-tuj.prototype=$desc
-function vj(eb,kf,VJ,Ai,hm,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM){this.eb=eb
+WZq.prototype=$desc
+function vj(eb,kf,VJ,Ai,tH,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM){this.eb=eb
 this.kf=kf
 this.VJ=VJ
 this.Ai=Ai
-this.hm=hm
+this.tH=tH
 this.VJ=VJ
 this.Ai=Ai
 this.VJ=VJ
@@ -26760,15 +26462,15 @@
 vj.prototype.gkf.$reflectable=1
 vj.prototype.skf=function(receiver,v){return receiver.kf=v}
 vj.prototype.skf.$reflectable=1
-function Vct(){}Vct.builtin$cls="Vct"
-if(!"name" in Vct)Vct.name="Vct"
-$desc=$collectedClasses.Vct
+function pva(){}pva.builtin$cls="pva"
+if(!"name" in pva)pva.name="pva"
+$desc=$collectedClasses.pva
 if($desc instanceof Array)$desc=$desc[1]
-Vct.prototype=$desc
-function CX(iI,VJ,Ai,hm,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM){this.iI=iI
+pva.prototype=$desc
+function CX(iI,VJ,Ai,tH,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM){this.iI=iI
 this.VJ=VJ
 this.Ai=Ai
-this.hm=hm
+this.tH=tH
 this.VJ=VJ
 this.Ai=Ai
 this.VJ=VJ
@@ -26789,11 +26491,11 @@
 CX.prototype.giI.$reflectable=1
 CX.prototype.siI=function(receiver,v){return receiver.iI=v}
 CX.prototype.siI.$reflectable=1
-function D13(){}D13.builtin$cls="D13"
-if(!"name" in D13)D13.name="D13"
-$desc=$collectedClasses.D13
+function cda(){}cda.builtin$cls="cda"
+if(!"name" in cda)cda.name="cda"
+$desc=$collectedClasses.cda
 if($desc instanceof Array)$desc=$desc[1]
-D13.prototype=$desc
+cda.prototype=$desc
 function TJ(oc,eT,yz,Cj,wd,Gs){this.oc=oc
 this.eT=eT
 this.yz=yz
@@ -26835,8 +26537,8 @@
 HV.prototype.gG1=function(receiver){return this.G1}
 HV.prototype.gkc=function(receiver){return this.kc}
 HV.prototype.gI4=function(){return this.I4}
-function BK(XB,hm,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM){this.XB=XB
-this.hm=hm
+function Nh(XB,tH,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM){this.XB=XB
+this.tH=tH
 this.VJ=VJ
 this.Ai=Ai
 this.VJ=VJ
@@ -26848,16 +26550,16 @@
 this.Vk=Vk
 this.Ye=Ye
 this.mT=mT
-this.KM=KM}BK.builtin$cls="BK"
-if(!"name" in BK)BK.name="BK"
-$desc=$collectedClasses.BK
+this.KM=KM}Nh.builtin$cls="Nh"
+if(!"name" in Nh)Nh.name="Nh"
+$desc=$collectedClasses.Nh
 if($desc instanceof Array)$desc=$desc[1]
-BK.prototype=$desc
-BK.prototype.gXB=function(receiver){return receiver.XB}
-BK.prototype.gXB.$reflectable=1
-BK.prototype.sXB=function(receiver,v){return receiver.XB=v}
-BK.prototype.sXB.$reflectable=1
-function fA(T9,Jt){this.T9=T9
+Nh.prototype=$desc
+Nh.prototype.gXB=function(receiver){return receiver.XB}
+Nh.prototype.gXB.$reflectable=1
+Nh.prototype.sXB=function(receiver,v){return receiver.XB=v}
+Nh.prototype.sXB.$reflectable=1
+function fA(Kr,Jt){this.Kr=Kr
 this.Jt=Jt}fA.builtin$cls="fA"
 if(!"name" in fA)fA.name="fA"
 $desc=$collectedClasses.fA
@@ -26884,7 +26586,7 @@
 $desc=$collectedClasses.c5
 if($desc instanceof Array)$desc=$desc[1]
 c5.prototype=$desc
-function ih(hm,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM){this.hm=hm
+function ih(tH,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM){this.tH=tH
 this.VJ=VJ
 this.Ai=Ai
 this.VJ=VJ
@@ -26916,8 +26618,8 @@
 mL.prototype.glw.$reflectable=1
 mL.prototype.gnI=function(){return this.nI}
 mL.prototype.gnI.$reflectable=1
-function bv(nk,YG,XR,VJ,Ai){this.nk=nk
-this.YG=YG
+function bv(nk,SS,XR,VJ,Ai){this.nk=nk
+this.SS=SS
 this.XR=XR
 this.VJ=VJ
 this.Ai=Ai}bv.builtin$cls="bv"
@@ -27024,6 +26726,18 @@
 $desc=$collectedClasses.jI
 if($desc instanceof Array)$desc=$desc[1]
 jI.prototype=$desc
+function Rb(Hr,Oy,JR,e0,oJ,vm,VJ,Ai){this.Hr=Hr
+this.Oy=Oy
+this.JR=JR
+this.e0=e0
+this.oJ=oJ
+this.vm=vm
+this.VJ=VJ
+this.Ai=Ai}Rb.builtin$cls="Rb"
+if(!"name" in Rb)Rb.name="Rb"
+$desc=$collectedClasses.Rb
+if($desc instanceof Array)$desc=$desc[1]
+Rb.prototype=$desc
 function Zw(Rd,n7,LA,Vg,VJ,Ai){this.Rd=Rd
 this.n7=n7
 this.LA=LA
@@ -27045,7 +26759,10 @@
 $desc=$collectedClasses.Pf
 if($desc instanceof Array)$desc=$desc[1]
 Pf.prototype=$desc
-function F1(hm,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM){this.hm=hm
+function F1(k5,VJ,Ai,tH,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM){this.k5=k5
+this.VJ=VJ
+this.Ai=Ai
+this.tH=tH
 this.VJ=VJ
 this.Ai=Ai
 this.VJ=VJ
@@ -27062,7 +26779,16 @@
 $desc=$collectedClasses.F1
 if($desc instanceof Array)$desc=$desc[1]
 F1.prototype=$desc
-function uL(hm,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM){this.hm=hm
+F1.prototype.gk5=function(receiver){return receiver.k5}
+F1.prototype.gk5.$reflectable=1
+F1.prototype.sk5=function(receiver,v){return receiver.k5=v}
+F1.prototype.sk5.$reflectable=1
+function waa(){}waa.builtin$cls="waa"
+if(!"name" in waa)waa.name="waa"
+$desc=$collectedClasses.waa
+if($desc instanceof Array)$desc=$desc[1]
+waa.prototype=$desc
+function uL(tH,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM){this.tH=tH
 this.VJ=VJ
 this.Ai=Ai
 this.VJ=VJ
@@ -27079,15 +26805,15 @@
 $desc=$collectedClasses.uL
 if($desc instanceof Array)$desc=$desc[1]
 uL.prototype=$desc
-uL.prototype.ghm=function(receiver){return receiver.hm}
-uL.prototype.ghm.$reflectable=1
-uL.prototype.shm=function(receiver,v){return receiver.hm=v}
-uL.prototype.shm.$reflectable=1
-function Xf(){}Xf.builtin$cls="Xf"
-if(!"name" in Xf)Xf.name="Xf"
-$desc=$collectedClasses.Xf
+uL.prototype.gtH=function(receiver){return receiver.tH}
+uL.prototype.gtH.$reflectable=1
+uL.prototype.stH=function(receiver,v){return receiver.tH=v}
+uL.prototype.stH.$reflectable=1
+function Nr(){}Nr.builtin$cls="Nr"
+if(!"name" in Nr)Nr.name="Nr"
+$desc=$collectedClasses.Nr
 if($desc instanceof Array)$desc=$desc[1]
-Xf.prototype=$desc
+Nr.prototype=$desc
 function Pi(){}Pi.builtin$cls="Pi"
 if(!"name" in Pi)Pi.name="Pi"
 $desc=$collectedClasses.Pi
@@ -27150,11 +26876,11 @@
 $desc=$collectedClasses.Zb
 if($desc instanceof Array)$desc=$desc[1]
 Zb.prototype=$desc
-function bF(g){this.g=g}bF.builtin$cls="bF"
-if(!"name" in bF)bF.name="bF"
-$desc=$collectedClasses.bF
+function id(g){this.g=g}id.builtin$cls="id"
+if(!"name" in id)id.name="id"
+$desc=$collectedClasses.id
 if($desc instanceof Array)$desc=$desc[1]
-bF.prototype=$desc
+id.prototype=$desc
 function iV(h,i,j,k){this.h=h
 this.i=i
 this.j=j
@@ -27174,16 +26900,16 @@
 W4.prototype=$desc
 W4.prototype.gWA=function(){return this.WA}
 W4.prototype.gIl=function(){return this.Il}
-function ndx(){}ndx.builtin$cls="ndx"
-if(!"name" in ndx)ndx.name="ndx"
-$desc=$collectedClasses.ndx
+function Fa(){}Fa.builtin$cls="Fa"
+if(!"name" in Fa)Fa.name="Fa"
+$desc=$collectedClasses.Fa
 if($desc instanceof Array)$desc=$desc[1]
-ndx.prototype=$desc
-function Hm(){}Hm.builtin$cls="Hm"
-if(!"name" in Hm)Hm.name="Hm"
-$desc=$collectedClasses.Hm
+Fa.prototype=$desc
+function x9(){}x9.builtin$cls="x9"
+if(!"name" in x9)x9.name="x9"
+$desc=$collectedClasses.x9
 if($desc instanceof Array)$desc=$desc[1]
-Hm.prototype=$desc
+x9.prototype=$desc
 function d3(){}d3.builtin$cls="d3"
 if(!"name" in d3)d3.name="d3"
 $desc=$collectedClasses.d3
@@ -27434,11 +27160,11 @@
 $desc=$collectedClasses.w12
 if($desc instanceof Array)$desc=$desc[1]
 w12.prototype=$desc
-function ppY(a){this.a=a}ppY.builtin$cls="ppY"
-if(!"name" in ppY)ppY.name="ppY"
-$desc=$collectedClasses.ppY
+function fTP(a){this.a=a}fTP.builtin$cls="fTP"
+if(!"name" in fTP)fTP.name="fTP"
+$desc=$collectedClasses.fTP
 if($desc instanceof Array)$desc=$desc[1]
-ppY.prototype=$desc
+fTP.prototype=$desc
 function yL(){}yL.builtin$cls="yL"
 if(!"name" in yL)yL.name="yL"
 $desc=$collectedClasses.yL
@@ -27554,11 +27280,11 @@
 $desc=$collectedClasses.ir
 if($desc instanceof Array)$desc=$desc[1]
 ir.prototype=$desc
-function Tt(KM){this.KM=KM}Tt.builtin$cls="Tt"
-if(!"name" in Tt)Tt.name="Tt"
-$desc=$collectedClasses.Tt
+function Sa(KM){this.KM=KM}Sa.builtin$cls="Sa"
+if(!"name" in Sa)Sa.name="Sa"
+$desc=$collectedClasses.Sa
 if($desc instanceof Array)$desc=$desc[1]
-Tt.prototype=$desc
+Sa.prototype=$desc
 dM.prototype.gKM=function(receiver){return receiver.KM}
 dM.prototype.gKM.$reflectable=1
 function GN(){}GN.builtin$cls="GN"
@@ -27596,26 +27322,16 @@
 $desc=$collectedClasses.Bl
 if($desc instanceof Array)$desc=$desc[1]
 Bl.prototype=$desc
-function Fn(){}Fn.builtin$cls="Fn"
-if(!"name" in Fn)Fn.name="Fn"
-$desc=$collectedClasses.Fn
-if($desc instanceof Array)$desc=$desc[1]
-Fn.prototype=$desc
-function e3(){}e3.builtin$cls="e3"
-if(!"name" in e3)e3.name="e3"
-$desc=$collectedClasses.e3
-if($desc instanceof Array)$desc=$desc[1]
-e3.prototype=$desc
 function pM(){}pM.builtin$cls="pM"
 if(!"name" in pM)pM.name="pM"
 $desc=$collectedClasses.pM
 if($desc instanceof Array)$desc=$desc[1]
 pM.prototype=$desc
-function jh(){}jh.builtin$cls="jh"
-if(!"name" in jh)jh.name="jh"
-$desc=$collectedClasses.jh
+function Mh(){}Mh.builtin$cls="Mh"
+if(!"name" in Mh)Mh.name="Mh"
+$desc=$collectedClasses.Mh
 if($desc instanceof Array)$desc=$desc[1]
-jh.prototype=$desc
+Mh.prototype=$desc
 function Md(){}Md.builtin$cls="Md"
 if(!"name" in Md)Md.name="Md"
 $desc=$collectedClasses.Md
@@ -27651,11 +27367,11 @@
 $desc=$collectedClasses.mf
 if($desc instanceof Array)$desc=$desc[1]
 mf.prototype=$desc
-function ik(){}ik.builtin$cls="ik"
-if(!"name" in ik)ik.name="ik"
-$desc=$collectedClasses.ik
+function ej(){}ej.builtin$cls="ej"
+if(!"name" in ej)ej.name="ej"
+$desc=$collectedClasses.ej
 if($desc instanceof Array)$desc=$desc[1]
-ik.prototype=$desc
+ej.prototype=$desc
 function HK(b){this.b=b}HK.builtin$cls="HK"
 if(!"name" in HK)HK.name="HK"
 $desc=$collectedClasses.HK
@@ -27950,60 +27666,6 @@
 ky.prototype=$desc
 ky.prototype.gBb=function(receiver){return this.Bb}
 ky.prototype.gT8=function(receiver){return this.T8}
-function uA(a,b){this.a=a
-this.b=b}uA.builtin$cls="uA"
-if(!"name" in uA)uA.name="uA"
-$desc=$collectedClasses.uA
-if($desc instanceof Array)$desc=$desc[1]
-uA.prototype=$desc
-function vl(hP,KL,bO,tj,Lv,k6){this.hP=hP
-this.KL=KL
-this.bO=bO
-this.tj=tj
-this.Lv=Lv
-this.k6=k6}vl.builtin$cls="vl"
-if(!"name" in vl)vl.name="vl"
-$desc=$collectedClasses.vl
-if($desc instanceof Array)$desc=$desc[1]
-vl.prototype=$desc
-vl.prototype.ghP=function(){return this.hP}
-function Li(a,b,c){this.a=a
-this.b=b
-this.c=c}Li.builtin$cls="Li"
-if(!"name" in Li)Li.name="Li"
-$desc=$collectedClasses.Li
-if($desc instanceof Array)$desc=$desc[1]
-Li.prototype=$desc
-function WK(d){this.d=d}WK.builtin$cls="WK"
-if(!"name" in WK)WK.name="WK"
-$desc=$collectedClasses.WK
-if($desc instanceof Array)$desc=$desc[1]
-WK.prototype=$desc
-function iT(hP,Jn,KL,bO,tj,Lv,k6){this.hP=hP
-this.Jn=Jn
-this.KL=KL
-this.bO=bO
-this.tj=tj
-this.Lv=Lv
-this.k6=k6}iT.builtin$cls="iT"
-if(!"name" in iT)iT.name="iT"
-$desc=$collectedClasses.iT
-if($desc instanceof Array)$desc=$desc[1]
-iT.prototype=$desc
-iT.prototype.ghP=function(){return this.hP}
-iT.prototype.gJn=function(){return this.Jn}
-function tE(a,b,c){this.a=a
-this.b=b
-this.c=c}tE.builtin$cls="tE"
-if(!"name" in tE)tE.name="tE"
-$desc=$collectedClasses.tE
-if($desc instanceof Array)$desc=$desc[1]
-tE.prototype=$desc
-function GS(d){this.d=d}GS.builtin$cls="GS"
-if(!"name" in GS)GS.name="GS"
-$desc=$collectedClasses.GS
-if($desc instanceof Array)$desc=$desc[1]
-GS.prototype=$desc
 function fa(hP,re,KL,bO,tj,Lv,k6){this.hP=hP
 this.re=re
 this.KL=KL
@@ -28034,6 +27696,18 @@
 $desc=$collectedClasses.a9
 if($desc instanceof Array)$desc=$desc[1]
 a9.prototype=$desc
+function jh(e,f,g){this.e=e
+this.f=f
+this.g=g}jh.builtin$cls="jh"
+if(!"name" in jh)jh.name="jh"
+$desc=$collectedClasses.jh
+if($desc instanceof Array)$desc=$desc[1]
+jh.prototype=$desc
+function e3(h){this.h=h}e3.builtin$cls="e3"
+if(!"name" in e3)e3.name="e3"
+$desc=$collectedClasses.e3
+if($desc instanceof Array)$desc=$desc[1]
+e3.prototype=$desc
 function VA(Bb,T8,KL,bO,tj,Lv,k6){this.Bb=Bb
 this.T8=T8
 this.KL=KL
@@ -28143,22 +27817,6 @@
 K9.prototype=$desc
 K9.prototype.gBb=function(receiver){return this.Bb}
 K9.prototype.gT8=function(receiver){return this.T8}
-function zX(hP,Jn){this.hP=hP
-this.Jn=Jn}zX.builtin$cls="zX"
-if(!"name" in zX)zX.name="zX"
-$desc=$collectedClasses.zX
-if($desc instanceof Array)$desc=$desc[1]
-zX.prototype=$desc
-zX.prototype.ghP=function(){return this.hP}
-zX.prototype.gJn=function(){return this.Jn}
-function x9(hP,oc){this.hP=hP
-this.oc=oc}x9.builtin$cls="x9"
-if(!"name" in x9)x9.name="x9"
-$desc=$collectedClasses.x9
-if($desc instanceof Array)$desc=$desc[1]
-x9.prototype=$desc
-x9.prototype.ghP=function(){return this.hP}
-x9.prototype.goc=function(receiver){return this.oc}
 function RW(hP,bP,re){this.hP=hP
 this.bP=bP
 this.re=re}RW.builtin$cls="RW"
@@ -28174,10 +27832,11 @@
 $desc=$collectedClasses.xs
 if($desc instanceof Array)$desc=$desc[1]
 xs.prototype=$desc
-function FX(Sk,Ix,ku,fL){this.Sk=Sk
+function FX(Sk,Ix,ku,fL,lQ){this.Sk=Sk
 this.Ix=Ix
 this.ku=ku
-this.fL=fL}FX.builtin$cls="FX"
+this.fL=fL
+this.lQ=lQ}FX.builtin$cls="FX"
 if(!"name" in FX)FX.name="FX"
 $desc=$collectedClasses.FX
 if($desc instanceof Array)$desc=$desc[1]
@@ -28238,7 +27897,7 @@
 $desc=$collectedClasses.a0
 if($desc instanceof Array)$desc=$desc[1]
 a0.prototype=$desc
-function NQ(hm,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM){this.hm=hm
+function NQ(tH,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM){this.tH=tH
 this.VJ=VJ
 this.Ai=Ai
 this.VJ=VJ
@@ -28255,10 +27914,10 @@
 $desc=$collectedClasses.NQ
 if($desc instanceof Array)$desc=$desc[1]
 NQ.prototype=$desc
-function fI(Uz,VJ,Ai,hm,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM){this.Uz=Uz
+function fI(Uz,VJ,Ai,tH,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM){this.Uz=Uz
 this.VJ=VJ
 this.Ai=Ai
-this.hm=hm
+this.tH=tH
 this.VJ=VJ
 this.Ai=Ai
 this.VJ=VJ
@@ -28279,15 +27938,15 @@
 fI.prototype.gUz.$reflectable=1
 fI.prototype.sUz=function(receiver,v){return receiver.Uz=v}
 fI.prototype.sUz.$reflectable=1
-function WZq(){}WZq.builtin$cls="WZq"
-if(!"name" in WZq)WZq.name="WZq"
-$desc=$collectedClasses.WZq
+function V0(){}V0.builtin$cls="V0"
+if(!"name" in V0)V0.name="V0"
+$desc=$collectedClasses.V0
 if($desc instanceof Array)$desc=$desc[1]
-WZq.prototype=$desc
-function kK(vX,VJ,Ai,hm,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM){this.vX=vX
+V0.prototype=$desc
+function kK(vX,VJ,Ai,tH,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM){this.vX=vX
 this.VJ=VJ
 this.Ai=Ai
-this.hm=hm
+this.tH=tH
 this.VJ=VJ
 this.Ai=Ai
 this.VJ=VJ
@@ -28308,15 +27967,15 @@
 kK.prototype.gvX.$reflectable=1
 kK.prototype.svX=function(receiver,v){return receiver.vX=v}
 kK.prototype.svX.$reflectable=1
-function pva(){}pva.builtin$cls="pva"
-if(!"name" in pva)pva.name="pva"
-$desc=$collectedClasses.pva
+function V4(){}V4.builtin$cls="V4"
+if(!"name" in V4)V4.name="V4"
+$desc=$collectedClasses.V4
 if($desc instanceof Array)$desc=$desc[1]
-pva.prototype=$desc
-function uw(Qq,VJ,Ai,hm,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM){this.Qq=Qq
+V4.prototype=$desc
+function uw(V4,VJ,Ai,tH,VJ,Ai,VJ,Ai,ZI,uN,z3,TQ,Vk,Ye,mT,KM){this.V4=V4
 this.VJ=VJ
 this.Ai=Ai
-this.hm=hm
+this.tH=tH
 this.VJ=VJ
 this.Ai=Ai
 this.VJ=VJ
@@ -28333,15 +27992,15 @@
 $desc=$collectedClasses.uw
 if($desc instanceof Array)$desc=$desc[1]
 uw.prototype=$desc
-uw.prototype.gQq=function(receiver){return receiver.Qq}
-uw.prototype.gQq.$reflectable=1
-uw.prototype.sQq=function(receiver,v){return receiver.Qq=v}
-uw.prototype.sQq.$reflectable=1
-function cda(){}cda.builtin$cls="cda"
-if(!"name" in cda)cda.name="cda"
-$desc=$collectedClasses.cda
+uw.prototype.gV4=function(receiver){return receiver.V4}
+uw.prototype.gV4.$reflectable=1
+uw.prototype.sV4=function(receiver,v){return receiver.V4=v}
+uw.prototype.sV4.$reflectable=1
+function V6(){}V6.builtin$cls="V6"
+if(!"name" in V6)V6.name="V6"
+$desc=$collectedClasses.V6
 if($desc instanceof Array)$desc=$desc[1]
-cda.prototype=$desc
+V6.prototype=$desc
 function V2(N1,bn,Ck){this.N1=N1
 this.bn=bn
 this.Ck=Ck}V2.builtin$cls="V2"
@@ -28381,16 +28040,16 @@
 $desc=$collectedClasses.Uf
 if($desc instanceof Array)$desc=$desc[1]
 Uf.prototype=$desc
-function LfS(a){this.a=a}LfS.builtin$cls="LfS"
+function ik(a){this.a=a}ik.builtin$cls="ik"
+if(!"name" in ik)ik.name="ik"
+$desc=$collectedClasses.ik
+if($desc instanceof Array)$desc=$desc[1]
+ik.prototype=$desc
+function LfS(b){this.b=b}LfS.builtin$cls="LfS"
 if(!"name" in LfS)LfS.name="LfS"
 $desc=$collectedClasses.LfS
 if($desc instanceof Array)$desc=$desc[1]
 LfS.prototype=$desc
-function fTP(b){this.b=b}fTP.builtin$cls="fTP"
-if(!"name" in fTP)fTP.name="fTP"
-$desc=$collectedClasses.fTP
-if($desc instanceof Array)$desc=$desc[1]
-fTP.prototype=$desc
 function NP(Ca,LO,ZY,xS,PB,eS,Ii){this.Ca=Ca
 this.LO=LO
 this.ZY=ZY
@@ -28679,4 +28338,4 @@
 $desc=$collectedClasses.PW
 if($desc instanceof Array)$desc=$desc[1]
 PW.prototype=$desc
-return[qE,Yy,Ps,rK,fY,Mr,zx,ct,nB,i3,it,Az,QP,QW,n6,Ny,OM,QQ,MA,y4,d7,Rb,oJ,DG,mN,vH,hh,Em,Sb,rV,Wy,QF,bA,Wq,rz,Nh,wj,cv,Fs,SX,ea,D0,as,T5,Aa,u5,Yu,iG,jP,U2,tA,xn,Vb,QH,ST,X2,fJ,Vi,tX,Sg,pA,Mi,Gt,In,Gx,eP,AL,Og,cS,M6,El,zm,SV,aB,ku,Ih,cW,DK,qm,ZY,cx,la,Vn,PG,xe,Hw,bn,Im,oB,Aj,oU,qT,KV,BH,mh,G7,kl,Ql,Xp,bP,mX,SN,HD,ni,p3,qj,qW,KR,ew,fs,bX,BL,MC,Mx,j2,yz,lp,kd,I0,QR,Cp,ua,zD,Ul,G0,wb,fq,h4,qk,GI,Tb,tV,BT,yY,kJ,AE,xV,FH,y6,RH,pU,Lq,Mf,BR,r4,aG,J6,K5,UM,WS,rq,nK,kc,Eh,ty,Nf,Nc,rj,rh,Zv,Q7,hF,yK,HB,ZJ,mU,eZ,Fl,y5,nV,Zc,ui,D6,DQ,Sm,dx,es,eG,lv,pf,NV,W1,zo,wf,TU,bb,VE,zp,Xu,lu,tk,me,qN,NY,d4,MI,ca,xX,eW,um,Fu,OE,l6,BA,tp,rE,CC,PQ,uz,Yd,U0,AD,Gr,tc,GH,lo,NJ,nd,vt,rQ,EU,LR,MB,hy,r8,aS,CG,qF,MT,xN,Eo,Dn,ox,ZD,NE,wD,BD,vRT,Fi,Qr,mj,cB,k2,yR,AX,xJ,l4,Et,NC,nb,By,xt,tG,P0,Jq,Xr,qD,Cf,AS,Kq,oI,mJ,rF,vi,ZX,ycx,nE,zt,F0,Lt,Gv,kn,PE,QI,Tm,is,Q,jx,ZC,Jt,P,im,Pp,O,PK,JO,O2,aX,cC,RA,IY,JH,jl,Iy,JM,Ua,JG,ns,wd,TA,YP,yc,I9,Bj,NO,II,aJ,X1,HU,Pm,oo,OW,Dd,AP,yH,FA,Av,oH,LP,c2,WT,p8,XR,LI,A2,F3,u8,Gi,t2,Zr,ZQ,az,vV,Hk,XO,dr,TL,KX,uZ,OQ,Tp,v,Z3,D2,GT,Pe,Eq,cu,Lm,dC,wN,VX,VR,EK,KW,Pb,tQ,aC,Vf,Be,tu,i6,Vc,zO,aL,nH,a7,i1,xy,MH,A8,U5,SO,zs,rR,vZ,d5,U1,SJ,SU,Tv,XC,iK,GD,Sn,nI,jU,Lj,mb,am,cw,EE,Uz,uh,Kv,oP,YX,BI,y1,M2,iu,mg,zE,bl,tB,Oo,Tc,Ax,Wf,Un,Ei,U7,t0,Ld,Sz,Zk,fu,ng,Ar,jB,ye,Gj,Zz,Xh,Ca,Ik,JI,Ip,WV,C7,CQ,dz,tK,OR,Bg,DL,b8,j7,oV,TP,Zf,vs,da,xw,dm,rH,ZL,mi,jb,wB,Pu,qh,QC,Yl,Rv,YJ,jv,LB,DO,lz,Rl,Jb,M4,Jp,h7,pr,eN,B5,PI,j4,i9,VV,Dy,lU,xp,UH,Z5,ii,ib,MO,ms,UO,Bc,vp,lk,Gh,XB,ly,cK,O9,yU,nP,KA,Vo,qB,ez,lx,LV,DS,dp,B3,CR,ny,dR,uR,QX,YR,fB,eO,nO,t3,dq,dX,aY,wJ,e4,JB,Id,fZ,TF,Xz,Cg,Hs,uo,pK,eM,Ue,W5,R8,k6,oi,ce,o2,jG,fG,EQ,YB,iX,ou,S9,ey,xd,v6,db,Cm,N6,jg,YO,oz,b6,ef,zQ,Yp,u3,mW,ar,lD,W0,Sw,o0,a1,jp,Xt,Ba,An,LD,YI,OG,ro,DN,ZM,HW,JC,f1,Uk,wI,ob,by,QM,z0,E3,Rw,GY,jZ,h0,CL,K8,a2,fR,iP,MF,Rq,Hn,Zl,pl,a6,P7,DW,Ge,LK,AT,bJ,mp,ub,ds,lj,UV,VS,t7,HG,aE,kM,EH,cX,eL,L8,c8,a,Od,mE,WU,Rn,wv,uq,iD,hb,XX,Kd,yZ,Gs,pm,Tw,wm,FB,Lk,XZ,qz,hQ,Nw,kZ,JT,d9,rI,dD,QZ,BV,id,wz,B1,M5,Jn,DM,zL,ec,Kx,iO,bU,e7,nj,rl,RAp,ma,cf,E9,nF,FK,Si,vf,Fc,hD,I4,e0,RO,eu,ie,Ea,pu,i2,b0,Ov,qO,RX,kG,Gm,W9,uY,dW,PA,H2,O7,HI,E4,r7,Tz,Wk,DV,Hp,Nz,Jd,QS,ej,NL,vr,D4,L9u,Ms,Fw,RS,RY,Ys,vg,xG,Vj,VW,RK,DH,ZK,Th,Vju,KB,RKu,na,TkQ,xGn,ZKG,VWk,w6W,DHb,z9g,G8,UZ,Fv,WZ,I3,pv,Gk,Vfx,Ds,Dsd,CA,YL,KC,xL,As,GE,u7,St,tuj,vj,Vct,CX,D13,TJ,dG,Ng,HV,BK,fA,tz,jR,PO,c5,ih,mL,bv,pt,Zd,dY,vY,dS,ZW,dZ,Qe,Nu,pF,Ha,nu,be,Pg,jI,Zw,Pf,F1,uL,Xf,Pi,yj,qI,J3,E5,o5,b5,zI,Zb,bF,iV,W4,ndx,Hm,d3,X6,xh,wn,uF,cj,HA,br,zT,D7,qL,C4,l9,lP,km,Qt,Dk,A0,rm,eY,OO,BE,Qb,xI,q1,Zj,XP,q6,CK,BO,ZG,Oc,MX,w12,ppY,yL,dM,Y7,WC,Xi,TV,Mq,Oa,n1,xf,L6,Rs,uJ,hm,Ji,Bf,ir,Tt,GN,k8,HJ,S0,V3,Bl,Fn,e3,pM,jh,Md,Lf,fT,pp,Nq,nl,mf,ik,HK,w13,o8,GL,e9,Dw,Xy,uK,mY,fE,mB,XF,iH,wJY,zOQ,W6o,MdQ,YJG,DOe,lPa,Ufa,Raa,w0,w4,w5,w7,w9,w10,w11,c4,z6,Ay,Ed,G1,Os,Dl,Wh,x5,ev,ID,jV,ek,OC,Xm,Jy,ky,uA,vl,Li,WK,iT,tE,GS,fa,WW,vQ,a9,VA,J1,fk,wL,B0,Fq,hw,EZ,no,kB,ae,Iq,w6,jK,uk,K9,zX,x9,RW,xs,FX,Ae,Bt,vR,Pn,hc,hA,fr,a0,NQ,fI,WZq,kK,pva,uw,cda,V2,D8,jY,ll,Uf,LfS,fTP,NP,Vh,r0,jz,SA,zV,nv,ee,XI,hs,yp,ug,DT,OB,Ra,N9,NW,HS,TG,ts,Kj,VU,Ya,XT,ic,VT,T4,TR,VD,Oh,zy,Nb,Fy,eU,ADW,Ri,kq,Ag,PW]}
\ No newline at end of file
+return[qE,Yy,Ps,rK,fY,Mr,zx,ct,nB,i3,it,Az,QP,QW,n6,Ny,OM,QQ,MA,y4,d7,na,oJ,DG,mN,vH,hh,Em,Sb,rV,Wy,YN,bA,Wq,rv,BK,wj,cv,Fs,SX,ea,D0,as,T5,Aa,u5,Yu,iG,jP,U2,tA,xn,Vb,QH,ST,X2,fJ,Vi,tX,Sg,pA,Mi,Gt,In,Gx,eP,AL,Og,cS,M6,El,zm,SV,aB,ku,KM,cW,DK,qm,ZY,cx,la,Vn,PG,xe,Hw,bn,Im,oB,Aj,oU,qT,KV,BH,mh,G7,wq,Ql,Xp,bP,mX,SN,HD,ni,p3,qj,qW,KR,ew,fs,bX,BL,MC,Mx,j2,yz,lp,pD,I0,QR,Cp,ua,zD,Ul,G0,wb,fq,h4,qk,GI,Tb,tV,BT,yY,kJ,AE,xV,FH,y6,RH,pU,Lq,Mf,BR,r4,aG,J6,K5,UM,UL,rq,nK,kc,ij,ty,Nf,Nc,rj,rh,Zv,Q7,hF,OF,HB,ZJ,mU,eZ,Fl,y5,nV,Zc,ui,D6,DQ,Sm,dx,es,eG,lv,pf,NV,W1,zo,wf,TU,bb,VE,lc,Xu,qM,tk,me,qN,nh,d4,MI,ca,xX,eW,um,Fu,OE,l6,BA,zp,rE,CC,PQ,uz,Yd,U0,AD,Gr,tc,GH,lo,NJ,nd,vt,rQ,EU,LR,MB,hy,r8,aS,CG,qF,MT,Rk,Eo,Dn,UD,ZD,NE,wD,BD,vRT,Fi,Qr,mj,cB,uY,yR,AX,xJ,l4,Et,NC,nb,By,xt,tG,P0,Jq,Xr,qD,Cf,I2,AS,Kq,oI,mJ,rF,vi,ZX,ycx,nE,zt,F0,Lt,Gv,kn,PE,QI,FP,is,Q,jx,ZC,Jt,P,im,Pp,O,PK,JO,O2,aX,cC,RA,IY,JH,jl,Iy,JM,Ua,JG,ns,wd,TA,YP,yc,I9,Bj,NO,II,aJ,X1,HU,Pm,oo,OW,Dd,AP,yH,FA,Av,oH,LP,c2,WT,p8,XR,LI,A2,F3,u8,Gi,t2,Zr,ZQ,az,vV,Hk,XO,dr,TL,KX,uZ,OQ,Tp,v,Z3,D2,GT,Pe,Eq,cu,Lm,dC,wN,VX,VR,EK,KW,Pb,tQ,aC,Vf,Be,tu,i6,Vc,zO,aL,nH,a7,i1,xy,MH,A8,U5,SO,zs,rR,AM,d5,U1,SJ,SU,Tv,XC,iK,GD,Sn,nI,jU,Lj,mb,am,cw,EE,Uz,uh,Kv,oP,YX,BI,y1,M2,iu,mg,zE,bl,Ef,Oo,Tc,Ax,Wf,Un,Ei,U7,t0,Ld,Sz,Zk,fu,ng,Ar,jB,ye,Gj,Zz,Xh,Ca,Ik,JI,Ip,WV,C7,CQ,dz,tK,OR,Bg,DL,b8,j7,oV,TP,Zf,vs,da,xw,dm,rH,ZL,mi,jb,wB,Pu,qh,QC,Yl,Rv,YJ,jv,LB,DO,lz,Rl,Jb,M4,Jp,h7,pr,eN,B5,PI,j4,i9,VV,Dy,lU,xp,UH,Z5,ii,ib,MO,ms,UO,Bc,vp,lk,Gh,XB,ly,cK,O9,yU,nP,KA,Vo,qB,ez,lx,LV,DS,dp,B3,CR,ny,dR,uR,QX,YR,fB,bq,nO,t3,dq,dX,aY,wJ,e4,JB,Id,fZ,TF,Xz,Cg,Hs,uo,pK,eM,Ue,W5,R8,k6,oi,ce,o2,jG,fG,EQ,YB,iX,ou,S9,ey,xd,v6,db,Cm,N6,jg,YO,oz,b6,ef,zQ,Yp,u3,mW,ar,lD,W0,Sw,o0,a1,jp,Xt,Ba,An,LD,YI,OG,ro,DN,ZM,HW,JC,f1,Uk,wI,ob,Ud,K8,by,dI,QM,Sh,tF,z0,Vx,Rw,GY,jZ,h0,CL,uA,a2,fR,iP,MF,Rq,Hn,Zl,pl,a6,P7,DW,Ge,LK,AT,bJ,mp,ub,ds,lj,UV,VS,t7,HG,aE,kM,EH,cX,eL,L8,c8,a,Od,mE,WU,Rn,wv,uq,iD,hb,XX,Kd,yZ,Gs,pm,Tw,wm,FB,Lk,XZ,qz,hQ,Nw,kZ,JT,d9,rI,dD,QZ,BV,E1,wz,B1,M5,Jn,DM,zL,ec,Kx,iO,bU,e7,nj,rl,RAp,ma,cf,E9,nF,FK,Si,vf,Fc,hD,I4,e0,RO,eu,ie,Ea,pu,i2,b0,Ov,qO,RX,kG,Gm,W9,vZ,dW,PA,H2,O7,HI,E4,r7,Tz,Wk,DV,Hp,Nz,Jd,QS,QF,NL,vr,D4,L9u,Ms,Fw,RS,RY,Ys,vg,xG,Vj,VW,RK,DH,ZK,Th,Vju,KB,RKu,xGn,TkQ,VWk,ZKG,DHb,w6W,Hna,z9g,G8,UZ,Fv,WZ,I3,pv,qr,Vfx,Gk,Dsd,Ds,tuj,aI,rG,yh,wO,Tm,rz,CA,YL,KC,xL,As,GE,pR,Vct,hx,D13,u7,St,WZq,vj,pva,CX,cda,TJ,dG,Ng,HV,Nh,fA,tz,jR,PO,c5,ih,mL,bv,pt,Zd,dY,vY,dS,ZW,dZ,Qe,Nu,pF,Ha,nu,be,Pg,jI,Rb,Zw,Pf,F1,waa,uL,Nr,Pi,yj,qI,J3,E5,o5,b5,zI,Zb,id,iV,W4,Fa,x9,d3,X6,xh,wn,uF,cj,HA,br,zT,D7,qL,C4,l9,lP,km,Qt,Dk,A0,rm,eY,OO,BE,Qb,xI,q1,Zj,XP,q6,CK,BO,ZG,Oc,MX,w12,fTP,yL,dM,Y7,WC,Xi,TV,Mq,Oa,n1,xf,L6,Rs,uJ,hm,Ji,Bf,ir,Sa,GN,k8,HJ,S0,V3,Bl,pM,Mh,Md,Lf,fT,pp,Nq,nl,mf,ej,HK,w13,o8,GL,e9,Dw,Xy,uK,mY,fE,mB,XF,iH,wJY,zOQ,W6o,MdQ,YJG,DOe,lPa,Ufa,Raa,w0,w4,w5,w7,w9,w10,w11,c4,z6,Ay,Ed,G1,Os,Dl,Wh,x5,ev,ID,jV,ek,OC,Xm,Jy,ky,fa,WW,vQ,a9,jh,e3,VA,J1,fk,wL,B0,Fq,hw,EZ,no,kB,ae,Iq,w6,jK,uk,K9,RW,xs,FX,Ae,Bt,vR,Pn,hc,hA,fr,a0,NQ,fI,V0,kK,V4,uw,V6,V2,D8,jY,ll,Uf,ik,LfS,NP,Vh,r0,jz,SA,zV,nv,ee,XI,hs,yp,ug,DT,OB,Ra,N9,NW,HS,TG,ts,Kj,VU,Ya,XT,ic,VT,T4,TR,VD,Oh,zy,Nb,Fy,eU,ADW,Ri,kq,Ag,PW]}
\ No newline at end of file
diff --git a/runtime/bin/vmservice/client/deployed/web/index_devtools.html b/runtime/bin/vmservice/client/deployed/web/index_devtools.html
new file mode 100644
index 0000000..c776551
--- /dev/null
+++ b/runtime/bin/vmservice/client/deployed/web/index_devtools.html
@@ -0,0 +1,591 @@
+<!DOCTYPE html><html><head><script src="packages/shadow_dom/shadow_dom.debug.js"></script>
+<script src="packages/custom_element/custom-elements.debug.js"></script>
+<script src="packages/browser/interop.js"></script>
+
+  <title>Dart VM Observatory</title>
+  <meta charset="utf-8">
+  <link type="text/css" rel="stylesheet" href="bootstrap_css/css/bootstrap.min.css">
+  
+  <script src="index_devtools.html_bootstrap.dart.js"></script>
+  
+</head>
+<body><polymer-element name="observatory-element">
+  
+</polymer-element><polymer-element name="error-view" extends="observatory-element">
+  <template>
+    <div class="row">
+    <div class="col-md-8 col-md-offset-2">
+      <div class="panel panel-danger">
+        <div class="panel-heading">Error</div>
+        <div class="panel-body">
+          <template if="{{ (error_obj == null) || (error_obj['type'] != 'LanguageError') }}">
+            <p>{{ error }}</p>
+          </template>
+          <template if="{{ (error_obj != null) &amp;&amp; (error_obj['type'] == 'LanguageError') }}">
+            <pre>{{ error_obj['error_msg'] }}</pre>
+          </template>
+        </div>
+      </div>
+    </div>
+    </div>
+  </template>
+  
+</polymer-element><polymer-element name="field-ref" extends="observatory-element">
+<template>
+<div>
+  <template if="{{ field['final'] }}"> final </template>
+  <template if="{{ field['const'] }}"> const </template>
+  <template if="{{ (field['declared_type']['name'] == 'dynamic' &amp;&amp; !field['final'] &amp;&amp; !field['const']) }}">
+  var
+  </template>
+  <template if="{{ (field['declared_type']['name'] != 'dynamic') }}">
+  <a href="{{ app.locationManager.currentIsolateClassLink(field['declared_type']['id']) }}">
+    {{ field['declared_type']['user_name'] }} </a>
+  </template>
+  <a href="{{ app.locationManager.currentIsolateObjectLink(field['id'])}}">
+    {{ field['user_name'] }} </a>
+</div>
+</template>  </polymer-element><polymer-element name="instance-ref" extends="observatory-element">
+<template>
+<div>
+  <template if="{{ (instance['type'] == 'null') }}">
+    {{ "null" }}
+  </template>
+  <template if="{{ (instance['type'] != 'null') }}">
+  <a href="{{ app.locationManager.currentIsolateObjectLink(instance['id'])}}">
+    {{ instance['preview'] }}
+  </a>
+  </template>
+ </div>
+</template>  </polymer-element><polymer-element name="class-view" extends="observatory-element">
+  <template>
+    <div class="row">
+    <div class="col-md-8 col-md-offset-2">
+      <div class="panel panel-warning">
+        <div class="panel-heading">
+          class <strong>{{ cls['user_name'] }}</strong>
+          <template if="{{ cls['super']['type'] != 'Null' }}">
+            extends
+            <a href="{{ app.locationManager.currentIsolateClassLink(cls['super']['id'])}}">
+              {{ cls['super']['user_name'] }}
+            </a>
+          </template>
+          <a class="pull-right" href="{{ app.locationManager.currentIsolateObjectLink(cls['library']['id'])}}">
+            {{ cls['library']['name'] }}
+          </a>
+        </div>
+        <div class="panel-body">
+          <table class="table table-hover">
+            <tbody>
+              <tr>
+                <td>Abstract</td><td>{{ cls['abstract'] }}</td>
+              </tr>
+              <tr>
+                <td>Const</td><td>{{ cls['const'] }}</td>
+              </tr>
+              <tr>
+                <td>Finalized</td><td>{{ cls['const'] }}</td>
+              </tr>
+              <tr>
+                <td>Implemented</td><td>{{ cls['implemented'] }}</td>
+              </tr>
+              <tr>
+                <td>Patch</td><td>{{ cls['patch'] }}</td>
+              </tr>
+              <tr>
+                <td>VM Name</td><td>{{ cls['name'] }}</td>
+              </tr>
+            </tbody>
+          </table>
+          <template if="{{ cls['error'] == null }}">
+            <blockquote><strong>Fields</strong></blockquote>
+            <table class="table table-hover">
+             <tbody>
+                <tr template="" repeat="{{ field in cls['fields'] }}">
+                  <td><field-ref app="{{ app }}" field="{{ field }}"></field-ref></td>
+                  <td><instance-ref app="{{ app }}" instance="{{ field['value'] }}"></instance-ref></td>                  
+                </tr>
+              </tbody>
+            </table>
+            <blockquote><strong>Functions</strong></blockquote>
+            <table class="table table-hover">
+              <thead>
+                <tr>
+                  <th>User Name</th>
+                  <th>VM Name</th>
+                </tr>
+              </thead>
+              <tbody>
+                <tr template="" repeat="{{ function in cls['functions'] }}">
+                  <td><a href="{{ app.locationManager.currentIsolateObjectLink(function['id'])}}">{{ function['user_name'] }}</a></td>
+                  <td><a href="{{ app.locationManager.currentIsolateObjectLink(function['id'])}}">{{ function['name'] }}</a></td>
+                </tr>
+              </tbody>
+            </table>
+          </template>
+          <template if="{{ cls['error'] != null }}">
+            <error-view error_obj="{{ cls['error'] }}"></error-view>
+          </template>
+        </div>
+      </div>
+    </div>
+    </div>
+  </template>
+  
+</polymer-element><polymer-element name="disassembly-entry" extends="observatory-element">
+  <template>
+  <div class="row">
+    <template if="{{ instruction['type'] == 'DisassembledInstructionComment' }}">
+      <div class="col-md-2"></div>
+      <div class="col-md-2"></div>
+      <div class="col-md-4"><code>{{ instruction['comment'] }}</code></div>
+    </template>
+    <template if="{{ instruction['type'] == 'DisassembledInstruction' }}">
+      <div class="col-md-2"></div>
+      <div class="col-md-2">{{ instruction['pc'] }}</div>
+      <div class="col-md-4">
+        <code>{{ instruction['hex'] }} {{ instruction['human'] }}</code>
+      </div>
+    </template>
+  </div>
+  </template>
+  
+</polymer-element><polymer-element name="code-view" extends="observatory-element">
+  <template>
+  <div class="row">
+    <div class="col-md-8 col-md-offset-2">
+      <div class="{{ cssPanelClass }}">
+        <div class="panel-heading">
+          <a href="{{ app.locationManager.currentIsolateObjectLink(code['function']['id'])}}">
+            {{ code['function']['user_name'] }} ({{ code['function']['name'] }})
+          </a>
+        </div>
+        <div class="panel-body">
+          <div class="row">
+              <div class="col-md-2"><strong>Samples</strong></div>
+              <div class="col-md-2"><strong>Address</strong></div>
+              <div><strong>Instruction</strong></div>
+          </div>
+          <template repeat="{{ instruction in code['disassembly'] }}">
+            <disassembly-entry instruction="{{ instruction }}">
+            </disassembly-entry>
+          </template>
+        </div>
+      </div>
+    </div>
+  </div>
+  </template>
+  
+</polymer-element><polymer-element name="collapsible-content" extends="observatory-element">
+  <template>
+    <div class="well row">
+      <a on-click="toggleDisplay" class="btn muted unselectable">
+           Raw message... <i class="{{ iconClass }}"></i>
+      </a>
+      <div style="display: {{ displayValue }}" class="well">
+        <content></content>
+      </div>
+    </div>
+  </template>
+  
+</polymer-element><polymer-element name="field-view" extends="observatory-element">
+  <template>
+  <div class="row">
+    <div class="col-md-8 col-md-offset-2">
+      <div class="panel panel-warning">
+        <div class="panel-heading">
+          <template if="{{ field['static'] }}">static</template>
+          <template if="{{ field['final'] }}">final</template>
+          <template if="{{ field['const'] }}">const</template>
+          {{ field['user_name'] }} ({{ field['name'] }}) 
+          <a class="pull-right" href="{{ app.locationManager.currentIsolateClassLink(field['class']['id'])}}">
+            {{ field['class']['user_name'] }}
+          </a>
+        </div>
+        <div class="panel-body">
+        <template if="{{ field['guard_class'] == 'dynamic'}}">
+          <div class="alert alert-danger">
+            Field has been assigned multiple types. If a field is only ever
+            assigned a single type, performance may improve.
+          </div>
+        </template>
+        <template if="{{ field['guard_class'] != 'dynamic'}}">
+          <div class="alert alert-success">Field has monomorphic type</div>
+          <template if="{{ (field['guard_class'] != 'dynamic') &amp;&amp; 
+                        field['guard_nullable'] }}">
+            <div class="alert alert-info">
+              Field has been assigned null. If a field is never assigned null,
+              performance may improve.
+            </div>
+          </template>
+          <blockquote>
+            <a href="{{ app.locationManager.currentIsolateClassLink(field['guard_class']['id'])}}">
+            {{ field['guard_class']['user_name'] }}
+          </a>
+          </blockquote>
+        </template>
+        </div>
+      </div>
+    </div>
+  </div>
+  </template>
+  
+</polymer-element><polymer-element name="function-view" extends="observatory-element">
+  <template>
+  <div class="row">
+    <div class="col-md-8 col-md-offset-2">
+      <div class="panel panel-warning">
+        <div class="panel-heading">
+          {{ function['user_name'] }} ({{ function['name'] }}) 
+          <a class="pull-right" href="{{ app.locationManager.currentIsolateClassLink(function['class']['id'])}}">
+            {{ function['class']['name'] }}
+          </a>
+        </div>
+        <div class="panel-body">
+          <div>
+          <a class="btn btn-primary" href="{{ app.locationManager.currentIsolateObjectLink(function['code']['id'])}}">Current Code</a>
+          <a class="btn btn-info" href="{{ app.locationManager.currentIsolateObjectLink(function['unoptimized_code']['id'])}}">Unoptimized Code</a>
+          </div>
+          <table class="table table-hover">
+            <tbody>
+              <tr>
+                <td>static</td><td>{{ function['is_static'] }}</td>
+              </tr>
+              <tr>
+                <td>Const</td><td>{{ function['is_const'] }}</td>
+              </tr>
+              <tr>
+                <td>Optimizable</td><td>{{ function['is_optimizable'] }}</td>
+              </tr>
+              <tr>
+                <td>Inlinable</td><td>{{ function['is_inlinable'] }}</td>
+              </tr>
+              <tr>
+                <td>Kind</td><td>{{ function['kind'] }}</td>
+              </tr>
+              <tr>
+                <td>Usage Count</td><td>{{ function['usage_counter'] }}</td>
+              </tr>
+              <tr>
+                <td>Optimized Call Site Count</td><td>{{ function['optimized_call_site_count'] }}</td>
+              </tr>
+              <tr>
+                <td>Deoptimizations</td><td>{{ function['deoptimizations'] }}</td>
+              </tr>
+            </tbody>
+          </table>
+        </div>
+      </div>
+    </div>
+  </div>
+  </template>
+  
+</polymer-element><polymer-element name="isolate-summary" extends="observatory-element">
+  <template>
+  	<div class="row">
+  	  <div class="col-md-1">
+  	  	<img src="packages/observatory/src/observatory_elements/img/isolate_icon.png" class="img-polaroid">	
+  	  </div>
+  	  <div class="col-md-1">{{ isolate }}</div>
+  	  <div class="col-md-10">{{ name }}</div>
+  	</div>
+  	<div class="row">
+  	  <div class="col-md-2"></div>
+  	  <div class="col-md-1">
+  	  	<a href="{{ app.locationManager.relativeLink(isolate, 'stacktrace') }}">Stacktrace</a>
+  	  </div>
+      <div class="col-md-1">
+        <a href="{{ app.locationManager.relativeLink(isolate, 'library') }}">Library</a>
+      </div>
+  	  <div class="col-md-8"></div>
+    </div>
+  </template>
+  
+</polymer-element><polymer-element name="isolate-list" extends="observatory-element">
+  <template>
+      <ul class="list-group">
+      <template repeat="{{ isolate in app.isolateManager.isolates.values }}">
+      	<li class="list-group-item">
+        <isolate-summary app="{{ app }}" isolate="{{ isolate.id }}" name="{{ isolate.name }}"></isolate-summary>
+        </li>
+      </template>
+      </ul>
+  </template>
+  
+</polymer-element><polymer-element name="instance-view" extends="observatory-element">
+  <template>
+    <div class="row">
+    <div class="col-md-8 col-md-offset-2">
+      <div class="panel panel-warning">   
+        <div class="panel-heading">
+         Instance of
+         <a href="{{ app.locationManager.currentIsolateClassLink(instance['class']['id'])}}">
+            {{ instance['class']['user_name'] }}
+         </a>
+        </div>
+        <div class="panel-body">
+          <template if="{{ instance['error'] == null }}">
+            <table class="table table-hover">
+              <tbody>
+                <tr>
+                  <td>Preview</td><td>{{ instance['preview'] }}</td>
+                </tr>
+              </tbody>
+            </table>
+            <blockquote><strong>Fields</strong></blockquote>
+            <table class="table table-hover">
+             <tbody>
+                <tr template="" repeat="{{ field in instance['fields'] }}">
+                  <td><field-ref app="{{ app }}" field="{{ field }}"></field-ref></td>
+                  <td><instance-ref app="{{ app }}" instance="{{ field['value'] }}"></instance-ref></td>              
+                </tr>
+              </tbody>
+            </table>
+          </template>
+          <template if="{{ instance['error'] != null }}">
+            <error-view error_obj="{{ instance['error'] }}"></error-view>
+          </template>
+        </div>
+      </div>
+    </div>
+    </div>
+  </template>
+  
+</polymer-element><polymer-element name="json-view" extends="observatory-element">
+  <template>
+    <template bind="" if="{{ valueType == 'Primitive' }}">
+      <span>{{primitiveString}}</span>
+    </template>
+    <template bind="" if="{{ valueType == 'List' }}">
+      <table class="table table-condensed table-bordered">
+        <caption class="text-left">List, {{list.length}}</caption>
+        <tbody>
+          <tr template="" repeat="{{item in list)}}">
+            <th>{{counter}}</th>
+            <td><json-view json="{{item}}"></json-view></td>
+          </tr>
+        </tbody>
+      </table>
+    </template>
+    <template if="{{ valueType == 'Map' }}">
+      <table class="table table-condensed table-bordered">
+        <caption class="text-left">Map, {{keys.length}}</caption>
+        <tbody>
+          <tr template="" repeat="{{key in keys}}">
+            <th>{{key}}</th>
+            <td><json-view json="{{value(key)}}"></json-view></td>
+          </tr>
+        </tbody>
+      </table>
+    </template>
+  </template>
+  
+</polymer-element><polymer-element name="library-view" extends="observatory-element">
+  <template>
+  <div class="alert alert-success">Library {{ library['name'] }}</div>
+  <div class="alert alert-info">Scripts</div>
+  <table class="table table-hover">
+    <tbody>
+      <tr template="" repeat="{{ script in library['scripts']}}">
+        <td>
+          {{ script['kind'] }}
+        </td>
+        <td>
+          <a href="{{ app.locationManager.currentIsolateScriptLink(script['id'], script['name']) }}">{{ script['name'] }}</a>
+        </td>
+      </tr>
+    </tbody>
+  </table>
+  <div class="alert alert-info">Imported Libraries</div>
+  <table class="table table-hover">
+    <tbody>
+      <tr template="" repeat="{{ lib in library['libraries'] }}">
+        <td>
+          <a href="{{ app.locationManager.currentIsolateObjectLink(lib['id'])}}">
+            {{ lib['url'] }}
+          </a>
+        </td>
+      </tr>
+    </tbody>
+  </table>
+  <div class="alert alert-info">Variables</div>
+  <table class="table table-hover">
+    <tbody>
+      <tr template="" repeat="{{ variable in library['variables'] }}">
+        <td><field-ref app="{{ app }}" field="{{ variable }}"></field-ref></td>
+        <td><instance-ref app="{{ app }}" instance="{{ variable['value'] }}"></instance-ref></td>
+      </tr>
+    </tbody>
+  </table>
+  <div class="alert alert-info">Functions</div>
+  <table class="table table-hover">
+    <tbody>
+      <tr template="" repeat="{{ func in library['functions'] }}">
+        <td>
+          <a href="{{ app.locationManager.currentIsolateObjectLink(func['id'])}}">
+            {{ func['user_name'] }}
+          </a>
+        </td>
+      </tr>
+    </tbody>
+  </table>
+  <div class="alert alert-info">Classes</div>
+  <table class="table table-hover">
+    <thead>
+      <tr>
+        <th>Name</th>
+        <th>Internal Name</th>
+      </tr>
+    </thead>
+    <tbody>
+      <tr template="" repeat="{{ cls in library['classes'] }}">
+        <td>
+          <a href="{{ app.locationManager.currentIsolateClassLink(cls['id']) }}">
+            {{ cls['user_name'] }}
+          </a>
+        </td>
+        <td>
+          <a href="{{ app.locationManager.currentIsolateClassLink(cls['id']) }}">
+            {{ cls['name'] }}
+          </a>
+        </td>
+      </tr>
+    </tbody>
+  </table>
+
+  </template>
+  
+</polymer-element><polymer-element name="source-view" extends="observatory-element">
+  <template>
+  <div class="row">
+    <div class="col-md-8 col-md-offset-2">
+      <div class="panel-heading">{{ source.url }}</div>
+      <div class="panel-body">
+        <div class="row">
+          <div><strong>Source</strong></div>
+        </div>
+        <pre>        <template repeat="{{ line in source.lines }}">{{line.paddedLine}} {{line.src}}
+        </template>
+        </pre>
+      </div>
+    </div>
+  </div>
+  </template>
+  
+</polymer-element><polymer-element name="script-view" extends="observatory-element">
+  <template>
+    <source-view app="{{ app }}" source="{{ script['source'] }}"></source-view>
+  </template>
+  
+</polymer-element><polymer-element name="stack-trace" extends="observatory-element">
+  <template>
+  <div class="alert alert-info">Stack Trace</div>
+  <table class="table table-hover">
+    <thead>
+      <tr>
+        <th>Depth</th>
+        <th>Function</th>
+        <th>Url</th>
+        <th>Line</th>
+      </tr>
+    </thead>
+    <tbody>
+      <tr template="" repeat="{{ frame in trace['members'] }}">
+        <td>{{$index}}</td>
+        <td><a href="{{app.locationManager.currentIsolateObjectLink(frame['function']['id'])}}">{{ frame['name'] }}</a></td>
+        <td>{{ frame['url'] }}</td>
+        <td>{{ frame['line'] }}</td>
+      </tr>
+    </tbody>
+  </table>
+  </template>
+  
+</polymer-element><polymer-element name="message-viewer" extends="observatory-element">
+  <!--
+    This is a big switch statement which instantiates the custom element
+    designated to display the message type.
+  -->
+  <template>
+  	<!-- If the message type is an IsolateList -->
+    <template if="{{ messageType == 'IsolateList' }}">
+      <isolate-list app="{{ app }}"></isolate-list>
+    </template>
+    <!-- If the message type is a StackTrace -->
+    <template if="{{ messageType == 'StackTrace' }}">
+      <stack-trace app="{{ app }}" trace="{{ message }}"></stack-trace>
+    </template>
+    <!-- If the message type is a RequestError -->
+    <template if="{{ messageType == 'RequestError' }}">
+      <error-view app="{{ app }}" error="{{ message['error'] }}"></error-view>
+    </template>
+    <template if="{{ messageType == 'Library' }}">
+      <library-view app="{{ app }}" library="{{ message }}"></library-view>
+    </template>
+    <template if="{{ messageType == 'Class' }}">
+      <class-view app="{{ app }}" cls="{{ message }}"></class-view>
+    </template>
+    <template if="{{ messageType == 'Field' }}">
+      <field-view app="{{ app }}" field="{{ message }}"></field-view>
+    </template>
+    <template if="{{ messageType == 'Instance' }}">
+      <instance-view app="{{ app }}" instance="{{ message }}"></instance-view>
+    </template>
+    <template if="{{ messageType == 'Array' }}">
+      <instance-view app="{{ app }}" instance="{{ message }}"></instance-view>
+    </template>
+    <template if="{{ messageType == 'GrowableObjectArray' }}">
+      <instance-view app="{{ app }}" instance="{{ message }}"></instance-view>
+    </template>
+    <template if="{{ messageType == 'String' }}">
+      <instance-view app="{{ app }}" instance="{{ message }}"></instance-view>
+    </template>
+    <template if="{{ messageType == 'Bool' }}">
+      <instance-view app="{{ app }}" instance="{{ message }}"></instance-view>
+    </template>
+    <template if="{{ messageType == 'Smi' }}">
+      <instance-view app="{{ app }}" instance="{{ message }}"></instance-view>
+    </template>
+    <template if="{{ messageType == 'Function' }}">
+      <function-view app="{{ app }}" function="{{ message }}"></function-view>
+    </template>
+    <template if="{{ messageType == 'Code' }}">
+      <code-view app="{{ app }}" code="{{ message }}"></code-view>
+    </template>
+    <template if="{{ messageType == 'Script' }}">
+      <script-view app="{{ app }}" script="{{ message }}"></script-view>
+    </template>
+    <!-- Add new views and message types in the future here. -->
+  </template>
+  
+</polymer-element><polymer-element name="navigation-bar" extends="observatory-element">
+  <template>
+    <nav class="navbar navbar-default" role="navigation">
+      <div class="navbar-header">
+        <a class="navbar-brand" href="">Observatory</a>
+      </div>
+      <div class="collapse navbar-collapse navbar-ex1-collapse">
+        <input class="span2 pull-right navbar-form" placeholder="VM Address" type="text" value="{{ app.requestManager.prefix }}">
+      </div>
+    </nav>
+  </template>
+  
+</polymer-element><polymer-element name="response-viewer" extends="observatory-element">
+  <template>
+    <template repeat="{{ message in app.requestManager.responses }}">
+      <message-viewer app="{{ app }}" message="{{ message }}"></message-viewer>
+      <collapsible-content>
+        <!-- <json-view json="{{ message }}"></json-view> -->
+      </collapsible-content>
+    </template>
+  </template>
+  
+</polymer-element><polymer-element name="observatory-application" extends="observatory-element">
+  <template>
+    <navigation-bar app="{{ app }}"></navigation-bar>
+    <response-viewer app="{{ app }}"></response-viewer>
+  </template>
+  
+</polymer-element>
+  <observatory-application devtools="true"></observatory-application>
+
+</body></html>
\ No newline at end of file
diff --git a/runtime/bin/vmservice/client/deployed/web/index_devtools.html_bootstrap.dart.js b/runtime/bin/vmservice/client/deployed/web/index_devtools.html_bootstrap.dart.js
new file mode 100644
index 0000000..1cb385f
--- /dev/null
+++ b/runtime/bin/vmservice/client/deployed/web/index_devtools.html_bootstrap.dart.js
@@ -0,0 +1,48979 @@
+if (!HTMLElement.prototype.createShadowRoot
+    || window.__forceShadowDomPolyfill) {
+
+/*
+ * Copyright 2013 The Polymer Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style
+ * license that can be found in the LICENSE file.
+ */
+(function() {
+  // TODO(jmesserly): fix dart:html to use unprefixed name
+  if (Element.prototype.webkitCreateShadowRoot) {
+    Element.prototype.webkitCreateShadowRoot = function() {
+      return window.ShadowDOMPolyfill.wrapIfNeeded(this).createShadowRoot();
+    };
+  }
+})();
+
+// Copyright 2012 Google Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+(function(global) {
+  'use strict';
+
+  var PROP_ADD_TYPE = 'add';
+  var PROP_UPDATE_TYPE = 'update';
+  var PROP_RECONFIGURE_TYPE = 'reconfigure';
+  var PROP_DELETE_TYPE = 'delete';
+  var ARRAY_SPLICE_TYPE = 'splice';
+
+  // Detect and do basic sanity checking on Object/Array.observe.
+  function detectObjectObserve() {
+    if (typeof Object.observe !== 'function' ||
+        typeof Array.observe !== 'function') {
+      return false;
+    }
+
+    var records = [];
+
+    function callback(recs) {
+      records = recs;
+    }
+
+    var test = {};
+    Object.observe(test, callback);
+    test.id = 1;
+    test.id = 2;
+    delete test.id;
+    Object.deliverChangeRecords(callback);
+    if (records.length !== 3)
+      return false;
+
+    // TODO(rafaelw): Remove this when new change record type names make it to
+    // chrome release.
+    if (records[0].type == 'new' &&
+        records[1].type == 'updated' &&
+        records[2].type == 'deleted') {
+      PROP_ADD_TYPE = 'new';
+      PROP_UPDATE_TYPE = 'updated';
+      PROP_RECONFIGURE_TYPE = 'reconfigured';
+      PROP_DELETE_TYPE = 'deleted';
+    } else if (records[0].type != 'add' ||
+               records[1].type != 'update' ||
+               records[2].type != 'delete') {
+      console.error('Unexpected change record names for Object.observe. ' +
+                    'Using dirty-checking instead');
+      return false;
+    }
+    Object.unobserve(test, callback);
+
+    test = [0];
+    Array.observe(test, callback);
+    test[1] = 1;
+    test.length = 0;
+    Object.deliverChangeRecords(callback);
+    if (records.length != 2)
+      return false;
+    if (records[0].type != ARRAY_SPLICE_TYPE ||
+        records[1].type != ARRAY_SPLICE_TYPE) {
+      return false;
+    }
+    Array.unobserve(test, callback);
+
+    return true;
+  }
+
+  var hasObserve = detectObjectObserve();
+
+  function detectEval() {
+    // don't test for eval if document has CSP securityPolicy object and we can see that
+    // eval is not supported. This avoids an error message in console even when the exception
+    // is caught
+    if (global.document &&
+        'securityPolicy' in global.document &&
+        !global.document.securityPolicy.allowsEval) {
+      return false;
+    }
+
+    try {
+      var f = new Function('', 'return true;');
+      return f();
+    } catch (ex) {
+      return false;
+    }
+  }
+
+  var hasEval = detectEval();
+
+  function isIndex(s) {
+    return +s === s >>> 0;
+  }
+
+  function toNumber(s) {
+    return +s;
+  }
+
+  function isObject(obj) {
+    return obj === Object(obj);
+  }
+
+  var numberIsNaN = global.Number.isNaN || function isNaN(value) {
+    return typeof value === 'number' && global.isNaN(value);
+  }
+
+  function areSameValue(left, right) {
+    if (left === right)
+      return left !== 0 || 1 / left === 1 / right;
+    if (numberIsNaN(left) && numberIsNaN(right))
+      return true;
+
+    return left !== left && right !== right;
+  }
+
+  var createObject = ('__proto__' in {}) ?
+    function(obj) { return obj; } :
+    function(obj) {
+      var proto = obj.__proto__;
+      if (!proto)
+        return obj;
+      var newObject = Object.create(proto);
+      Object.getOwnPropertyNames(obj).forEach(function(name) {
+        Object.defineProperty(newObject, name,
+                             Object.getOwnPropertyDescriptor(obj, name));
+      });
+      return newObject;
+    };
+
+  var identStart = '[\$_a-zA-Z]';
+  var identPart = '[\$_a-zA-Z0-9]';
+  var ident = identStart + '+' + identPart + '*';
+  var elementIndex = '(?:[0-9]|[1-9]+[0-9]+)';
+  var identOrElementIndex = '(?:' + ident + '|' + elementIndex + ')';
+  var path = '(?:' + identOrElementIndex + ')(?:\\s*\\.\\s*' + identOrElementIndex + ')*';
+  var pathRegExp = new RegExp('^' + path + '$');
+
+  function isPathValid(s) {
+    if (typeof s != 'string')
+      return false;
+    s = s.trim();
+
+    if (s == '')
+      return true;
+
+    if (s[0] == '.')
+      return false;
+
+    return pathRegExp.test(s);
+  }
+
+  var constructorIsPrivate = {};
+
+  function Path(s, privateToken) {
+    if (privateToken !== constructorIsPrivate)
+      throw Error('Use Path.get to retrieve path objects');
+
+    if (s.trim() == '')
+      return this;
+
+    if (isIndex(s)) {
+      this.push(s);
+      return this;
+    }
+
+    s.split(/\s*\.\s*/).filter(function(part) {
+      return part;
+    }).forEach(function(part) {
+      this.push(part);
+    }, this);
+
+    if (hasEval && !hasObserve && this.length) {
+      this.getValueFrom = this.compiledGetValueFromFn();
+    }
+  }
+
+  // TODO(rafaelw): Make simple LRU cache
+  var pathCache = {};
+
+  function getPath(pathString) {
+    if (pathString instanceof Path)
+      return pathString;
+
+    if (pathString == null)
+      pathString = '';
+
+    if (typeof pathString !== 'string')
+      pathString = String(pathString);
+
+    var path = pathCache[pathString];
+    if (path)
+      return path;
+    if (!isPathValid(pathString))
+      return invalidPath;
+    var path = new Path(pathString, constructorIsPrivate);
+    pathCache[pathString] = path;
+    return path;
+  }
+
+  Path.get = getPath;
+
+  Path.prototype = createObject({
+    __proto__: [],
+    valid: true,
+
+    toString: function() {
+      return this.join('.');
+    },
+
+    getValueFrom: function(obj, observedSet) {
+      for (var i = 0; i < this.length; i++) {
+        if (obj == null)
+          return;
+        if (observedSet)
+          observedSet.observe(obj);
+        obj = obj[this[i]];
+      }
+      return obj;
+    },
+
+    compiledGetValueFromFn: function() {
+      var accessors = this.map(function(ident) {
+        return isIndex(ident) ? '["' + ident + '"]' : '.' + ident;
+      });
+
+      var str = '';
+      var pathString = 'obj';
+      str += 'if (obj != null';
+      var i = 0;
+      for (; i < (this.length - 1); i++) {
+        var ident = this[i];
+        pathString += accessors[i];
+        str += ' &&\n     ' + pathString + ' != null';
+      }
+      str += ')\n';
+
+      pathString += accessors[i];
+
+      str += '  return ' + pathString + ';\nelse\n  return undefined;';
+      return new Function('obj', str);
+    },
+
+    setValueFrom: function(obj, value) {
+      if (!this.length)
+        return false;
+
+      for (var i = 0; i < this.length - 1; i++) {
+        if (!isObject(obj))
+          return false;
+        obj = obj[this[i]];
+      }
+
+      if (!isObject(obj))
+        return false;
+
+      obj[this[i]] = value;
+      return true;
+    }
+  });
+
+  var invalidPath = new Path('', constructorIsPrivate);
+  invalidPath.valid = false;
+  invalidPath.getValueFrom = invalidPath.setValueFrom = function() {};
+
+  var MAX_DIRTY_CHECK_CYCLES = 1000;
+
+  function dirtyCheck(observer) {
+    var cycles = 0;
+    while (cycles < MAX_DIRTY_CHECK_CYCLES && observer.check()) {
+      observer.report();
+      cycles++;
+    }
+    if (global.testingExposeCycleCount)
+      global.dirtyCheckCycleCount = cycles;
+  }
+
+  function objectIsEmpty(object) {
+    for (var prop in object)
+      return false;
+    return true;
+  }
+
+  function diffIsEmpty(diff) {
+    return objectIsEmpty(diff.added) &&
+           objectIsEmpty(diff.removed) &&
+           objectIsEmpty(diff.changed);
+  }
+
+  function diffObjectFromOldObject(object, oldObject) {
+    var added = {};
+    var removed = {};
+    var changed = {};
+    var oldObjectHas = {};
+
+    for (var prop in oldObject) {
+      var newValue = object[prop];
+
+      if (newValue !== undefined && newValue === oldObject[prop])
+        continue;
+
+      if (!(prop in object)) {
+        removed[prop] = undefined;
+        continue;
+      }
+
+      if (newValue !== oldObject[prop])
+        changed[prop] = newValue;
+    }
+
+    for (var prop in object) {
+      if (prop in oldObject)
+        continue;
+
+      added[prop] = object[prop];
+    }
+
+    if (Array.isArray(object) && object.length !== oldObject.length)
+      changed.length = object.length;
+
+    return {
+      added: added,
+      removed: removed,
+      changed: changed
+    };
+  }
+
+  function copyObject(object, opt_copy) {
+    var copy = opt_copy || (Array.isArray(object) ? [] : {});
+    for (var prop in object) {
+      copy[prop] = object[prop];
+    };
+    if (Array.isArray(object))
+      copy.length = object.length;
+    return copy;
+  }
+
+  function Observer(object, callback, target, token) {
+    this.closed = false;
+    this.object = object;
+    this.callback = callback;
+    // TODO(rafaelw): Hold this.target weakly when WeakRef is available.
+    this.target = target;
+    this.token = token;
+    this.reporting = true;
+    if (hasObserve) {
+      var self = this;
+      this.boundInternalCallback = function(records) {
+        self.internalCallback(records);
+      };
+    }
+
+    addToAll(this);
+  }
+
+  Observer.prototype = {
+    internalCallback: function(records) {
+      if (this.closed)
+        return;
+      if (this.reporting && this.check(records)) {
+        this.report();
+        if (this.testingResults)
+          this.testingResults.anyChanged = true;
+      }
+    },
+
+    close: function() {
+      if (this.closed)
+        return;
+      if (this.object && typeof this.object.close === 'function')
+        this.object.close();
+
+      this.disconnect();
+      this.object = undefined;
+      this.closed = true;
+    },
+
+    deliver: function(testingResults) {
+      if (this.closed)
+        return;
+      if (hasObserve) {
+        this.testingResults = testingResults;
+        Object.deliverChangeRecords(this.boundInternalCallback);
+        this.testingResults = undefined;
+      } else {
+        dirtyCheck(this);
+      }
+    },
+
+    report: function() {
+      if (!this.reporting)
+        return;
+
+      this.sync(false);
+      if (this.callback) {
+        this.reportArgs.push(this.token);
+        this.invokeCallback(this.reportArgs);
+      }
+      this.reportArgs = undefined;
+    },
+
+    invokeCallback: function(args) {
+      try {
+        this.callback.apply(this.target, args);
+      } catch (ex) {
+        Observer._errorThrownDuringCallback = true;
+        console.error('Exception caught during observer callback: ' + (ex.stack || ex));
+      }
+    },
+
+    reset: function() {
+      if (this.closed)
+        return;
+
+      if (hasObserve) {
+        this.reporting = false;
+        Object.deliverChangeRecords(this.boundInternalCallback);
+        this.reporting = true;
+      }
+
+      this.sync(true);
+    }
+  }
+
+  var collectObservers = !hasObserve || global.forceCollectObservers;
+  var allObservers;
+  Observer._allObserversCount = 0;
+
+  if (collectObservers) {
+    allObservers = [];
+  }
+
+  function addToAll(observer) {
+    if (!collectObservers)
+      return;
+
+    allObservers.push(observer);
+    Observer._allObserversCount++;
+  }
+
+  var runningMicrotaskCheckpoint = false;
+
+  var hasDebugForceFullDelivery = typeof Object.deliverAllChangeRecords == 'function';
+
+  global.Platform = global.Platform || {};
+
+  global.Platform.performMicrotaskCheckpoint = function() {
+    if (runningMicrotaskCheckpoint)
+      return;
+
+    if (hasDebugForceFullDelivery) {
+      Object.deliverAllChangeRecords();
+      return;
+    }
+
+    if (!collectObservers)
+      return;
+
+    runningMicrotaskCheckpoint = true;
+
+    var cycles = 0;
+    var results = {};
+
+    do {
+      cycles++;
+      var toCheck = allObservers;
+      allObservers = [];
+      results.anyChanged = false;
+
+      for (var i = 0; i < toCheck.length; i++) {
+        var observer = toCheck[i];
+        if (observer.closed)
+          continue;
+
+        if (hasObserve) {
+          observer.deliver(results);
+        } else if (observer.check()) {
+          results.anyChanged = true;
+          observer.report();
+        }
+
+        allObservers.push(observer);
+      }
+    } while (cycles < MAX_DIRTY_CHECK_CYCLES && results.anyChanged);
+
+    if (global.testingExposeCycleCount)
+      global.dirtyCheckCycleCount = cycles;
+
+    Observer._allObserversCount = allObservers.length;
+    runningMicrotaskCheckpoint = false;
+  };
+
+  if (collectObservers) {
+    global.Platform.clearObservers = function() {
+      allObservers = [];
+    };
+  }
+
+  function ObjectObserver(object, callback, target, token) {
+    Observer.call(this, object, callback, target, token);
+    this.connect();
+    this.sync(true);
+  }
+
+  ObjectObserver.prototype = createObject({
+    __proto__: Observer.prototype,
+
+    connect: function() {
+      if (hasObserve)
+        Object.observe(this.object, this.boundInternalCallback);
+    },
+
+    sync: function(hard) {
+      if (!hasObserve)
+        this.oldObject = copyObject(this.object);
+    },
+
+    check: function(changeRecords) {
+      var diff;
+      var oldValues;
+      if (hasObserve) {
+        if (!changeRecords)
+          return false;
+
+        oldValues = {};
+        diff = diffObjectFromChangeRecords(this.object, changeRecords,
+                                           oldValues);
+      } else {
+        oldValues = this.oldObject;
+        diff = diffObjectFromOldObject(this.object, this.oldObject);
+      }
+
+      if (diffIsEmpty(diff))
+        return false;
+
+      this.reportArgs =
+          [diff.added || {}, diff.removed || {}, diff.changed || {}];
+      this.reportArgs.push(function(property) {
+        return oldValues[property];
+      });
+
+      return true;
+    },
+
+    disconnect: function() {
+      if (!hasObserve)
+        this.oldObject = undefined;
+      else if (this.object)
+        Object.unobserve(this.object, this.boundInternalCallback);
+    }
+  });
+
+  function ArrayObserver(array, callback, target, token) {
+    if (!Array.isArray(array))
+      throw Error('Provided object is not an Array');
+    ObjectObserver.call(this, array, callback, target, token);
+  }
+
+  ArrayObserver.prototype = createObject({
+    __proto__: ObjectObserver.prototype,
+
+    connect: function() {
+      if (hasObserve)
+        Array.observe(this.object, this.boundInternalCallback);
+    },
+
+    sync: function() {
+      if (!hasObserve)
+        this.oldObject = this.object.slice();
+    },
+
+    check: function(changeRecords) {
+      var splices;
+      if (hasObserve) {
+        if (!changeRecords)
+          return false;
+        splices = projectArraySplices(this.object, changeRecords);
+      } else {
+        splices = calcSplices(this.object, 0, this.object.length,
+                              this.oldObject, 0, this.oldObject.length);
+      }
+
+      if (!splices || !splices.length)
+        return false;
+
+      this.reportArgs = [splices];
+      return true;
+    }
+  });
+
+  ArrayObserver.applySplices = function(previous, current, splices) {
+    splices.forEach(function(splice) {
+      var spliceArgs = [splice.index, splice.removed.length];
+      var addIndex = splice.index;
+      while (addIndex < splice.index + splice.addedCount) {
+        spliceArgs.push(current[addIndex]);
+        addIndex++;
+      }
+
+      Array.prototype.splice.apply(previous, spliceArgs);
+    });
+  };
+
+  function ObservedSet(callback) {
+    this.arr = [];
+    this.callback = callback;
+    this.isObserved = true;
+  }
+
+  // TODO(rafaelw): Consider surfacing a way to avoid observing prototype
+  // ancestors which are expected not to change (e.g. Element, Node...).
+  var objProto = Object.getPrototypeOf({});
+  var arrayProto = Object.getPrototypeOf([]);
+  ObservedSet.prototype = {
+    reset: function() {
+      this.isObserved = !this.isObserved;
+    },
+
+    observe: function(obj) {
+      if (!isObject(obj) || obj === objProto || obj === arrayProto)
+        return;
+      var i = this.arr.indexOf(obj);
+      if (i >= 0 && this.arr[i+1] === this.isObserved)
+        return;
+
+      if (i < 0) {
+        i = this.arr.length;
+        this.arr[i] = obj;
+        Object.observe(obj, this.callback);
+      }
+
+      this.arr[i+1] = this.isObserved;
+      this.observe(Object.getPrototypeOf(obj));
+    },
+
+    cleanup: function() {
+      var i = 0, j = 0;
+      var isObserved = this.isObserved;
+      while(j < this.arr.length) {
+        var obj = this.arr[j];
+        if (this.arr[j + 1] == isObserved) {
+          if (i < j) {
+            this.arr[i] = obj;
+            this.arr[i + 1] = isObserved;
+          }
+          i += 2;
+        } else {
+          Object.unobserve(obj, this.callback);
+        }
+        j += 2;
+      }
+
+      this.arr.length = i;
+    }
+  };
+
+  function PathObserver(object, path, callback, target, token, valueFn,
+                        setValueFn) {
+    var path = path instanceof Path ? path : getPath(path);
+    if (!path || !path.length || !isObject(object)) {
+      this.value_ = path ? path.getValueFrom(object) : undefined;
+      this.value = valueFn ? valueFn(this.value_) : this.value_;
+      this.closed = true;
+      return;
+    }
+
+    Observer.call(this, object, callback, target, token);
+    this.valueFn = valueFn;
+    this.setValueFn = setValueFn;
+    this.path = path;
+
+    this.connect();
+    this.sync(true);
+  }
+
+  PathObserver.prototype = createObject({
+    __proto__: Observer.prototype,
+
+    connect: function() {
+      if (hasObserve)
+        this.observedSet = new ObservedSet(this.boundInternalCallback);
+    },
+
+    disconnect: function() {
+      this.value = undefined;
+      this.value_ = undefined;
+      if (this.observedSet) {
+        this.observedSet.reset();
+        this.observedSet.cleanup();
+        this.observedSet = undefined;
+      }
+    },
+
+    check: function() {
+      // Note: Extracting this to a member function for use here and below
+      // regresses dirty-checking path perf by about 25% =-(.
+      if (this.observedSet)
+        this.observedSet.reset();
+
+      this.value_ = this.path.getValueFrom(this.object, this.observedSet);
+
+      if (this.observedSet)
+        this.observedSet.cleanup();
+
+      if (areSameValue(this.value_, this.oldValue_))
+        return false;
+
+      this.value = this.valueFn ? this.valueFn(this.value_) : this.value_;
+      this.reportArgs = [this.value, this.oldValue];
+      return true;
+    },
+
+    sync: function(hard) {
+      if (hard) {
+        if (this.observedSet)
+          this.observedSet.reset();
+
+        this.value_ = this.path.getValueFrom(this.object, this.observedSet);
+        this.value = this.valueFn ? this.valueFn(this.value_) : this.value_;
+
+        if (this.observedSet)
+          this.observedSet.cleanup();
+      }
+
+      this.oldValue_ = this.value_;
+      this.oldValue = this.value;
+    },
+
+    setValue: function(newValue) {
+      if (!this.path)
+        return;
+      if (typeof this.setValueFn === 'function')
+        newValue = this.setValueFn(newValue);
+      this.path.setValueFrom(this.object, newValue);
+    }
+  });
+
+  function CompoundPathObserver(callback, target, token, valueFn) {
+    Observer.call(this, undefined, callback, target, token);
+    this.valueFn = valueFn;
+
+    this.observed = [];
+    this.values = [];
+    this.value = undefined;
+    this.oldValue = undefined;
+    this.oldValues = undefined;
+    this.changeFlags = undefined;
+    this.started = false;
+  }
+
+  CompoundPathObserver.prototype = createObject({
+    __proto__: PathObserver.prototype,
+
+    // TODO(rafaelw): Consider special-casing when |object| is a PathObserver
+    // and path 'value' to avoid explicit observation.
+    addPath: function(object, path) {
+      if (this.started)
+        throw Error('Cannot add more paths once started.');
+
+      var path = path instanceof Path ? path : getPath(path);
+      var value = path ? path.getValueFrom(object) : undefined;
+
+      this.observed.push(object, path);
+      this.values.push(value);
+    },
+
+    start: function() {
+      this.started = true;
+      this.connect();
+      this.sync(true);
+    },
+
+    getValues: function() {
+      if (this.observedSet)
+        this.observedSet.reset();
+
+      var anyChanged = false;
+      for (var i = 0; i < this.observed.length; i = i+2) {
+        var path = this.observed[i+1];
+        if (!path)
+          continue;
+        var object = this.observed[i];
+        var value = path.getValueFrom(object, this.observedSet);
+        var oldValue = this.values[i/2];
+        if (!areSameValue(value, oldValue)) {
+          if (!anyChanged && !this.valueFn) {
+            this.oldValues = this.oldValues || [];
+            this.changeFlags = this.changeFlags || [];
+            for (var j = 0; j < this.values.length; j++) {
+              this.oldValues[j] = this.values[j];
+              this.changeFlags[j] = false;
+            }
+          }
+
+          if (!this.valueFn)
+            this.changeFlags[i/2] = true;
+
+          this.values[i/2] = value;
+          anyChanged = true;
+        }
+      }
+
+      if (this.observedSet)
+        this.observedSet.cleanup();
+
+      return anyChanged;
+    },
+
+    check: function() {
+      if (!this.getValues())
+        return;
+
+      if (this.valueFn) {
+        this.value = this.valueFn(this.values);
+
+        if (areSameValue(this.value, this.oldValue))
+          return false;
+
+        this.reportArgs = [this.value, this.oldValue];
+      } else {
+        this.reportArgs = [this.values, this.oldValues, this.changeFlags,
+                           this.observed];
+      }
+
+      return true;
+    },
+
+    sync: function(hard) {
+      if (hard) {
+        this.getValues();
+        if (this.valueFn)
+          this.value = this.valueFn(this.values);
+      }
+
+      if (this.valueFn)
+        this.oldValue = this.value;
+    },
+
+    close: function() {
+      if (this.observed) {
+        for (var i = 0; i < this.observed.length; i = i + 2) {
+          var object = this.observed[i];
+          if (object && typeof object.close === 'function')
+            object.close();
+        }
+        this.observed = undefined;
+        this.values = undefined;
+      }
+
+      Observer.prototype.close.call(this);
+    }
+  });
+
+  var expectedRecordTypes = {};
+  expectedRecordTypes[PROP_ADD_TYPE] = true;
+  expectedRecordTypes[PROP_UPDATE_TYPE] = true;
+  expectedRecordTypes[PROP_DELETE_TYPE] = true;
+
+  function notifyFunction(object, name) {
+    if (typeof Object.observe !== 'function')
+      return;
+
+    var notifier = Object.getNotifier(object);
+    return function(type, oldValue) {
+      var changeRecord = {
+        object: object,
+        type: type,
+        name: name
+      };
+      if (arguments.length === 2)
+        changeRecord.oldValue = oldValue;
+      notifier.notify(changeRecord);
+    }
+  }
+
+  // TODO(rafaelw): It should be possible for the Object.observe case to have
+  // every PathObserver used by defineProperty share a single Object.observe
+  // callback, and thus get() can simply call observer.deliver() and any changes
+  // to any dependent value will be observed.
+  PathObserver.defineProperty = function(object, name, descriptor) {
+    // TODO(rafaelw): Validate errors
+    var obj = descriptor.object;
+    var path = getPath(descriptor.path);
+    var notify = notifyFunction(object, name);
+
+    var observer = new PathObserver(obj, descriptor.path,
+        function(newValue, oldValue) {
+          if (notify)
+            notify(PROP_UPDATE_TYPE, oldValue);
+        }
+    );
+
+    Object.defineProperty(object, name, {
+      get: function() {
+        return path.getValueFrom(obj);
+      },
+      set: function(newValue) {
+        path.setValueFrom(obj, newValue);
+      },
+      configurable: true
+    });
+
+    return {
+      close: function() {
+        var oldValue = path.getValueFrom(obj);
+        if (notify)
+          observer.deliver();
+        observer.close();
+        Object.defineProperty(object, name, {
+          value: oldValue,
+          writable: true,
+          configurable: true
+        });
+      }
+    };
+  }
+
+  function diffObjectFromChangeRecords(object, changeRecords, oldValues) {
+    var added = {};
+    var removed = {};
+
+    for (var i = 0; i < changeRecords.length; i++) {
+      var record = changeRecords[i];
+      if (!expectedRecordTypes[record.type]) {
+        console.error('Unknown changeRecord type: ' + record.type);
+        console.error(record);
+        continue;
+      }
+
+      if (!(record.name in oldValues))
+        oldValues[record.name] = record.oldValue;
+
+      if (record.type == PROP_UPDATE_TYPE)
+        continue;
+
+      if (record.type == PROP_ADD_TYPE) {
+        if (record.name in removed)
+          delete removed[record.name];
+        else
+          added[record.name] = true;
+
+        continue;
+      }
+
+      // type = 'delete'
+      if (record.name in added) {
+        delete added[record.name];
+        delete oldValues[record.name];
+      } else {
+        removed[record.name] = true;
+      }
+    }
+
+    for (var prop in added)
+      added[prop] = object[prop];
+
+    for (var prop in removed)
+      removed[prop] = undefined;
+
+    var changed = {};
+    for (var prop in oldValues) {
+      if (prop in added || prop in removed)
+        continue;
+
+      var newValue = object[prop];
+      if (oldValues[prop] !== newValue)
+        changed[prop] = newValue;
+    }
+
+    return {
+      added: added,
+      removed: removed,
+      changed: changed
+    };
+  }
+
+  function newSplice(index, removed, addedCount) {
+    return {
+      index: index,
+      removed: removed,
+      addedCount: addedCount
+    };
+  }
+
+  var EDIT_LEAVE = 0;
+  var EDIT_UPDATE = 1;
+  var EDIT_ADD = 2;
+  var EDIT_DELETE = 3;
+
+  function ArraySplice() {}
+
+  ArraySplice.prototype = {
+
+    // Note: This function is *based* on the computation of the Levenshtein
+    // "edit" distance. The one change is that "updates" are treated as two
+    // edits - not one. With Array splices, an update is really a delete
+    // followed by an add. By retaining this, we optimize for "keeping" the
+    // maximum array items in the original array. For example:
+    //
+    //   'xxxx123' -> '123yyyy'
+    //
+    // With 1-edit updates, the shortest path would be just to update all seven
+    // characters. With 2-edit updates, we delete 4, leave 3, and add 4. This
+    // leaves the substring '123' intact.
+    calcEditDistances: function(current, currentStart, currentEnd,
+                                old, oldStart, oldEnd) {
+      // "Deletion" columns
+      var rowCount = oldEnd - oldStart + 1;
+      var columnCount = currentEnd - currentStart + 1;
+      var distances = new Array(rowCount);
+
+      // "Addition" rows. Initialize null column.
+      for (var i = 0; i < rowCount; i++) {
+        distances[i] = new Array(columnCount);
+        distances[i][0] = i;
+      }
+
+      // Initialize null row
+      for (var j = 0; j < columnCount; j++)
+        distances[0][j] = j;
+
+      for (var i = 1; i < rowCount; i++) {
+        for (var j = 1; j < columnCount; j++) {
+          if (this.equals(current[currentStart + j - 1], old[oldStart + i - 1]))
+            distances[i][j] = distances[i - 1][j - 1];
+          else {
+            var north = distances[i - 1][j] + 1;
+            var west = distances[i][j - 1] + 1;
+            distances[i][j] = north < west ? north : west;
+          }
+        }
+      }
+
+      return distances;
+    },
+
+    // This starts at the final weight, and walks "backward" by finding
+    // the minimum previous weight recursively until the origin of the weight
+    // matrix.
+    spliceOperationsFromEditDistances: function(distances) {
+      var i = distances.length - 1;
+      var j = distances[0].length - 1;
+      var current = distances[i][j];
+      var edits = [];
+      while (i > 0 || j > 0) {
+        if (i == 0) {
+          edits.push(EDIT_ADD);
+          j--;
+          continue;
+        }
+        if (j == 0) {
+          edits.push(EDIT_DELETE);
+          i--;
+          continue;
+        }
+        var northWest = distances[i - 1][j - 1];
+        var west = distances[i - 1][j];
+        var north = distances[i][j - 1];
+
+        var min;
+        if (west < north)
+          min = west < northWest ? west : northWest;
+        else
+          min = north < northWest ? north : northWest;
+
+        if (min == northWest) {
+          if (northWest == current) {
+            edits.push(EDIT_LEAVE);
+          } else {
+            edits.push(EDIT_UPDATE);
+            current = northWest;
+          }
+          i--;
+          j--;
+        } else if (min == west) {
+          edits.push(EDIT_DELETE);
+          i--;
+          current = west;
+        } else {
+          edits.push(EDIT_ADD);
+          j--;
+          current = north;
+        }
+      }
+
+      edits.reverse();
+      return edits;
+    },
+
+    /**
+     * Splice Projection functions:
+     *
+     * A splice map is a representation of how a previous array of items
+     * was transformed into a new array of items. Conceptually it is a list of
+     * tuples of
+     *
+     *   <index, removed, addedCount>
+     *
+     * which are kept in ascending index order of. The tuple represents that at
+     * the |index|, |removed| sequence of items were removed, and counting forward
+     * from |index|, |addedCount| items were added.
+     */
+
+    /**
+     * Lacking individual splice mutation information, the minimal set of
+     * splices can be synthesized given the previous state and final state of an
+     * array. The basic approach is to calculate the edit distance matrix and
+     * choose the shortest path through it.
+     *
+     * Complexity: O(l * p)
+     *   l: The length of the current array
+     *   p: The length of the old array
+     */
+    calcSplices: function(current, currentStart, currentEnd,
+                          old, oldStart, oldEnd) {
+      var prefixCount = 0;
+      var suffixCount = 0;
+
+      var minLength = Math.min(currentEnd - currentStart, oldEnd - oldStart);
+      if (currentStart == 0 && oldStart == 0)
+        prefixCount = this.sharedPrefix(current, old, minLength);
+
+      if (currentEnd == current.length && oldEnd == old.length)
+        suffixCount = this.sharedSuffix(current, old, minLength - prefixCount);
+
+      currentStart += prefixCount;
+      oldStart += prefixCount;
+      currentEnd -= suffixCount;
+      oldEnd -= suffixCount;
+
+      if (currentEnd - currentStart == 0 && oldEnd - oldStart == 0)
+        return [];
+
+      if (currentStart == currentEnd) {
+        var splice = newSplice(currentStart, [], 0);
+        while (oldStart < oldEnd)
+          splice.removed.push(old[oldStart++]);
+
+        return [ splice ];
+      } else if (oldStart == oldEnd)
+        return [ newSplice(currentStart, [], currentEnd - currentStart) ];
+
+      var ops = this.spliceOperationsFromEditDistances(
+          this.calcEditDistances(current, currentStart, currentEnd,
+                                 old, oldStart, oldEnd));
+
+      var splice = undefined;
+      var splices = [];
+      var index = currentStart;
+      var oldIndex = oldStart;
+      for (var i = 0; i < ops.length; i++) {
+        switch(ops[i]) {
+          case EDIT_LEAVE:
+            if (splice) {
+              splices.push(splice);
+              splice = undefined;
+            }
+
+            index++;
+            oldIndex++;
+            break;
+          case EDIT_UPDATE:
+            if (!splice)
+              splice = newSplice(index, [], 0);
+
+            splice.addedCount++;
+            index++;
+
+            splice.removed.push(old[oldIndex]);
+            oldIndex++;
+            break;
+          case EDIT_ADD:
+            if (!splice)
+              splice = newSplice(index, [], 0);
+
+            splice.addedCount++;
+            index++;
+            break;
+          case EDIT_DELETE:
+            if (!splice)
+              splice = newSplice(index, [], 0);
+
+            splice.removed.push(old[oldIndex]);
+            oldIndex++;
+            break;
+        }
+      }
+
+      if (splice) {
+        splices.push(splice);
+      }
+      return splices;
+    },
+
+    sharedPrefix: function(current, old, searchLength) {
+      for (var i = 0; i < searchLength; i++)
+        if (!this.equals(current[i], old[i]))
+          return i;
+      return searchLength;
+    },
+
+    sharedSuffix: function(current, old, searchLength) {
+      var index1 = current.length;
+      var index2 = old.length;
+      var count = 0;
+      while (count < searchLength && this.equals(current[--index1], old[--index2]))
+        count++;
+
+      return count;
+    },
+
+    calculateSplices: function(current, previous) {
+      return this.calcSplices(current, 0, current.length, previous, 0,
+                              previous.length);
+    },
+
+    equals: function(currentValue, previousValue) {
+      return currentValue === previousValue;
+    }
+  };
+
+  var arraySplice = new ArraySplice();
+
+  function calcSplices(current, currentStart, currentEnd,
+                       old, oldStart, oldEnd) {
+    return arraySplice.calcSplices(current, currentStart, currentEnd,
+                                   old, oldStart, oldEnd);
+  }
+
+  function intersect(start1, end1, start2, end2) {
+    // Disjoint
+    if (end1 < start2 || end2 < start1)
+      return -1;
+
+    // Adjacent
+    if (end1 == start2 || end2 == start1)
+      return 0;
+
+    // Non-zero intersect, span1 first
+    if (start1 < start2) {
+      if (end1 < end2)
+        return end1 - start2; // Overlap
+      else
+        return end2 - start2; // Contained
+    } else {
+      // Non-zero intersect, span2 first
+      if (end2 < end1)
+        return end2 - start1; // Overlap
+      else
+        return end1 - start1; // Contained
+    }
+  }
+
+  function mergeSplice(splices, index, removed, addedCount) {
+
+    var splice = newSplice(index, removed, addedCount);
+
+    var inserted = false;
+    var insertionOffset = 0;
+
+    for (var i = 0; i < splices.length; i++) {
+      var current = splices[i];
+      current.index += insertionOffset;
+
+      if (inserted)
+        continue;
+
+      var intersectCount = intersect(splice.index,
+                                     splice.index + splice.removed.length,
+                                     current.index,
+                                     current.index + current.addedCount);
+
+      if (intersectCount >= 0) {
+        // Merge the two splices
+
+        splices.splice(i, 1);
+        i--;
+
+        insertionOffset -= current.addedCount - current.removed.length;
+
+        splice.addedCount += current.addedCount - intersectCount;
+        var deleteCount = splice.removed.length +
+                          current.removed.length - intersectCount;
+
+        if (!splice.addedCount && !deleteCount) {
+          // merged splice is a noop. discard.
+          inserted = true;
+        } else {
+          var removed = current.removed;
+
+          if (splice.index < current.index) {
+            // some prefix of splice.removed is prepended to current.removed.
+            var prepend = splice.removed.slice(0, current.index - splice.index);
+            Array.prototype.push.apply(prepend, removed);
+            removed = prepend;
+          }
+
+          if (splice.index + splice.removed.length > current.index + current.addedCount) {
+            // some suffix of splice.removed is appended to current.removed.
+            var append = splice.removed.slice(current.index + current.addedCount - splice.index);
+            Array.prototype.push.apply(removed, append);
+          }
+
+          splice.removed = removed;
+          if (current.index < splice.index) {
+            splice.index = current.index;
+          }
+        }
+      } else if (splice.index < current.index) {
+        // Insert splice here.
+
+        inserted = true;
+
+        splices.splice(i, 0, splice);
+        i++;
+
+        var offset = splice.addedCount - splice.removed.length
+        current.index += offset;
+        insertionOffset += offset;
+      }
+    }
+
+    if (!inserted)
+      splices.push(splice);
+  }
+
+  function createInitialSplices(array, changeRecords) {
+    var splices = [];
+
+    for (var i = 0; i < changeRecords.length; i++) {
+      var record = changeRecords[i];
+      switch(record.type) {
+        case ARRAY_SPLICE_TYPE:
+          mergeSplice(splices, record.index, record.removed.slice(), record.addedCount);
+          break;
+        case PROP_ADD_TYPE:
+        case PROP_UPDATE_TYPE:
+        case PROP_DELETE_TYPE:
+          if (!isIndex(record.name))
+            continue;
+          var index = toNumber(record.name);
+          if (index < 0)
+            continue;
+          mergeSplice(splices, index, [record.oldValue], 1);
+          break;
+        default:
+          console.error('Unexpected record type: ' + JSON.stringify(record));
+          break;
+      }
+    }
+
+    return splices;
+  }
+
+  function projectArraySplices(array, changeRecords) {
+    var splices = [];
+
+    createInitialSplices(array, changeRecords).forEach(function(splice) {
+      if (splice.addedCount == 1 && splice.removed.length == 1) {
+        if (splice.removed[0] !== array[splice.index])
+          splices.push(splice);
+
+        return
+      };
+
+      splices = splices.concat(calcSplices(array, splice.index, splice.index + splice.addedCount,
+                                           splice.removed, 0, splice.removed.length));
+    });
+
+    return splices;
+  }
+
+  global.Observer = Observer;
+  global.Observer.hasObjectObserve = hasObserve;
+  global.ArrayObserver = ArrayObserver;
+  global.ArrayObserver.calculateSplices = function(current, previous) {
+    return arraySplice.calculateSplices(current, previous);
+  };
+
+  global.ArraySplice = ArraySplice;
+  global.ObjectObserver = ObjectObserver;
+  global.PathObserver = PathObserver;
+  global.CompoundPathObserver = CompoundPathObserver;
+  global.Path = Path;
+
+  // TODO(rafaelw): Only needed for testing until new change record names
+  // make it to release.
+  global.Observer.changeRecordTypes = {
+    add: PROP_ADD_TYPE,
+    update: PROP_UPDATE_TYPE,
+    reconfigure: PROP_RECONFIGURE_TYPE,
+    'delete': PROP_DELETE_TYPE,
+    splice: ARRAY_SPLICE_TYPE
+  };
+})(typeof global !== 'undefined' && global ? global : this);
+
+/*
+ * Copyright 2012 The Polymer Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style
+ * license that can be found in the LICENSE file.
+ */
+
+if (typeof WeakMap === 'undefined') {
+  (function() {
+    var defineProperty = Object.defineProperty;
+    var counter = Date.now() % 1e9;
+
+    var WeakMap = function() {
+      this.name = '__st' + (Math.random() * 1e9 >>> 0) + (counter++ + '__');
+    };
+
+    WeakMap.prototype = {
+      set: function(key, value) {
+        var entry = key[this.name];
+        if (entry && entry[0] === key)
+          entry[1] = value;
+        else
+          defineProperty(key, this.name, {value: [key, value], writable: true});
+      },
+      get: function(key) {
+        var entry;
+        return (entry = key[this.name]) && entry[0] === key ?
+            entry[1] : undefined;
+      },
+      delete: function(key) {
+        this.set(key, undefined);
+      }
+    };
+
+    window.WeakMap = WeakMap;
+  })();
+}
+
+// Copyright 2012 The Polymer Authors. All rights reserved.
+// Use of this source code is goverened by a BSD-style
+// license that can be found in the LICENSE file.
+
+var ShadowDOMPolyfill = {};
+
+(function(scope) {
+  'use strict';
+
+  var constructorTable = new WeakMap();
+  var nativePrototypeTable = new WeakMap();
+  var wrappers = Object.create(null);
+
+  // Don't test for eval if document has CSP securityPolicy object and we can
+  // see that eval is not supported. This avoids an error message in console
+  // even when the exception is caught
+  var hasEval = !('securityPolicy' in document) ||
+      document.securityPolicy.allowsEval;
+  if (hasEval) {
+    try {
+      var f = new Function('', 'return true;');
+      hasEval = f();
+    } catch (ex) {
+      hasEval = false;
+    }
+  }
+
+  function assert(b) {
+    if (!b)
+      throw new Error('Assertion failed');
+  };
+
+  function mixin(to, from) {
+    Object.getOwnPropertyNames(from).forEach(function(name) {
+      Object.defineProperty(to, name,
+                            Object.getOwnPropertyDescriptor(from, name));
+    });
+    return to;
+  };
+
+  function mixinStatics(to, from) {
+    Object.getOwnPropertyNames(from).forEach(function(name) {
+      switch (name) {
+        case 'arguments':
+        case 'caller':
+        case 'length':
+        case 'name':
+        case 'prototype':
+        case 'toString':
+          return;
+      }
+      Object.defineProperty(to, name,
+                            Object.getOwnPropertyDescriptor(from, name));
+    });
+    return to;
+  };
+
+  function oneOf(object, propertyNames) {
+    for (var i = 0; i < propertyNames.length; i++) {
+      if (propertyNames[i] in object)
+        return propertyNames[i];
+    }
+  }
+
+  // Mozilla's old DOM bindings are bretty busted:
+  // https://bugzilla.mozilla.org/show_bug.cgi?id=855844
+  // Make sure they are create before we start modifying things.
+  Object.getOwnPropertyNames(window);
+
+  function getWrapperConstructor(node) {
+    var nativePrototype = node.__proto__ || Object.getPrototypeOf(node);
+    var wrapperConstructor = constructorTable.get(nativePrototype);
+    if (wrapperConstructor)
+      return wrapperConstructor;
+
+    var parentWrapperConstructor = getWrapperConstructor(nativePrototype);
+
+    var GeneratedWrapper = createWrapperConstructor(parentWrapperConstructor);
+    registerInternal(nativePrototype, GeneratedWrapper, node);
+
+    return GeneratedWrapper;
+  }
+
+  function addForwardingProperties(nativePrototype, wrapperPrototype) {
+    installProperty(nativePrototype, wrapperPrototype, true);
+  }
+
+  function registerInstanceProperties(wrapperPrototype, instanceObject) {
+    installProperty(instanceObject, wrapperPrototype, false);
+  }
+
+  var isFirefox = /Firefox/.test(navigator.userAgent);
+
+  // This is used as a fallback when getting the descriptor fails in
+  // installProperty.
+  var dummyDescriptor = {
+    get: function() {},
+    set: function(v) {},
+    configurable: true,
+    enumerable: true
+  };
+
+  function isEventHandlerName(name) {
+    return /^on[a-z]+$/.test(name);
+  }
+
+  function isIdentifierName(name) {
+    return /^\w[a-zA-Z_0-9]*$/.test(name);
+  }
+
+  function getGetter(name) {
+    return hasEval && isIdentifierName(name) ?
+        new Function('return this.impl.' + name) :
+        function() { return this.impl[name]; };
+  }
+
+  function getSetter(name) {
+    return hasEval && isIdentifierName(name) ?
+        new Function('v', 'this.impl.' + name + ' = v') :
+        function(v) { this.impl[name] = v; };
+  }
+
+  function getMethod(name) {
+    return hasEval && isIdentifierName(name) ?
+        new Function('return this.impl.' + name +
+                     '.apply(this.impl, arguments)') :
+        function() { return this.impl[name].apply(this.impl, arguments); };
+  }
+
+  function installProperty(source, target, allowMethod) {
+    Object.getOwnPropertyNames(source).forEach(function(name) {
+      if (name in target)
+        return;
+
+      if (isFirefox) {
+        // Tickle Firefox's old bindings.
+        source.__lookupGetter__(name);
+      }
+      var descriptor;
+      try {
+        descriptor = Object.getOwnPropertyDescriptor(source, name);
+      } catch (ex) {
+        // JSC and V8 both use data properties instead of accessors which can
+        // cause getting the property desciptor to throw an exception.
+        // https://bugs.webkit.org/show_bug.cgi?id=49739
+        descriptor = dummyDescriptor;
+      }
+      var getter, setter;
+      if (allowMethod && typeof descriptor.value === 'function') {
+        target[name] = getMethod(name);
+        return;
+      }
+
+      var isEvent = isEventHandlerName(name);
+      if (isEvent)
+        getter = scope.getEventHandlerGetter(name);
+      else
+        getter = getGetter(name);
+
+      if (descriptor.writable || descriptor.set) {
+        if (isEvent)
+          setter = scope.getEventHandlerSetter(name);
+        else
+          setter = getSetter(name);
+      }
+
+      Object.defineProperty(target, name, {
+        get: getter,
+        set: setter,
+        configurable: descriptor.configurable,
+        enumerable: descriptor.enumerable
+      });
+    });
+  }
+
+  /**
+   * @param {Function} nativeConstructor
+   * @param {Function} wrapperConstructor
+   * @param {Object=} opt_instance If present, this is used to extract
+   *     properties from an instance object.
+   */
+  function register(nativeConstructor, wrapperConstructor, opt_instance) {
+    var nativePrototype = nativeConstructor.prototype;
+    registerInternal(nativePrototype, wrapperConstructor, opt_instance);
+    mixinStatics(wrapperConstructor, nativeConstructor);
+  }
+
+  function registerInternal(nativePrototype, wrapperConstructor, opt_instance) {
+    var wrapperPrototype = wrapperConstructor.prototype;
+    assert(constructorTable.get(nativePrototype) === undefined);
+
+    constructorTable.set(nativePrototype, wrapperConstructor);
+    nativePrototypeTable.set(wrapperPrototype, nativePrototype);
+
+    addForwardingProperties(nativePrototype, wrapperPrototype);
+    if (opt_instance)
+      registerInstanceProperties(wrapperPrototype, opt_instance);
+  }
+
+  function isWrapperFor(wrapperConstructor, nativeConstructor) {
+    return constructorTable.get(nativeConstructor.prototype) ===
+        wrapperConstructor;
+  }
+
+  /**
+   * Creates a generic wrapper constructor based on |object| and its
+   * constructor.
+   * Sometimes the constructor does not have an associated instance
+   * (CharacterData for example). In that case you can pass the constructor that
+   * you want to map the object to using |opt_nativeConstructor|.
+   * @param {Node} object
+   * @param {Function=} opt_nativeConstructor
+   * @return {Function} The generated constructor.
+   */
+  function registerObject(object) {
+    var nativePrototype = Object.getPrototypeOf(object);
+
+    var superWrapperConstructor = getWrapperConstructor(nativePrototype);
+    var GeneratedWrapper = createWrapperConstructor(superWrapperConstructor);
+    registerInternal(nativePrototype, GeneratedWrapper, object);
+
+    return GeneratedWrapper;
+  }
+
+  function createWrapperConstructor(superWrapperConstructor) {
+    function GeneratedWrapper(node) {
+      superWrapperConstructor.call(this, node);
+    }
+    GeneratedWrapper.prototype =
+        Object.create(superWrapperConstructor.prototype);
+    GeneratedWrapper.prototype.constructor = GeneratedWrapper;
+
+    return GeneratedWrapper;
+  }
+
+  var OriginalDOMImplementation = window.DOMImplementation;
+  var OriginalEvent = window.Event;
+  var OriginalNode = window.Node;
+  var OriginalWindow = window.Window;
+  var OriginalRange = window.Range;
+  var OriginalCanvasRenderingContext2D = window.CanvasRenderingContext2D;
+  var OriginalWebGLRenderingContext = window.WebGLRenderingContext;
+
+  function isWrapper(object) {
+    return object instanceof wrappers.EventTarget ||
+           object instanceof wrappers.Event ||
+           object instanceof wrappers.Range ||
+           object instanceof wrappers.DOMImplementation ||
+           object instanceof wrappers.CanvasRenderingContext2D ||
+           wrappers.WebGLRenderingContext &&
+               object instanceof wrappers.WebGLRenderingContext;
+  }
+
+  function isNative(object) {
+    return object instanceof OriginalNode ||
+           object instanceof OriginalEvent ||
+           object instanceof OriginalWindow ||
+           object instanceof OriginalRange ||
+           object instanceof OriginalDOMImplementation ||
+           object instanceof OriginalCanvasRenderingContext2D ||
+           OriginalWebGLRenderingContext &&
+               object instanceof OriginalWebGLRenderingContext;
+  }
+
+  /**
+   * Wraps a node in a WrapperNode. If there already exists a wrapper for the
+   * |node| that wrapper is returned instead.
+   * @param {Node} node
+   * @return {WrapperNode}
+   */
+  function wrap(impl) {
+    if (impl === null)
+      return null;
+
+    assert(isNative(impl));
+    return impl.polymerWrapper_ ||
+        (impl.polymerWrapper_ = new (getWrapperConstructor(impl))(impl));
+  }
+
+  /**
+   * Unwraps a wrapper and returns the node it is wrapping.
+   * @param {WrapperNode} wrapper
+   * @return {Node}
+   */
+  function unwrap(wrapper) {
+    if (wrapper === null)
+      return null;
+    assert(isWrapper(wrapper));
+    return wrapper.impl;
+  }
+
+  /**
+   * Unwraps object if it is a wrapper.
+   * @param {Object} object
+   * @return {Object} The native implementation object.
+   */
+  function unwrapIfNeeded(object) {
+    return object && isWrapper(object) ? unwrap(object) : object;
+  }
+
+  /**
+   * Wraps object if it is not a wrapper.
+   * @param {Object} object
+   * @return {Object} The wrapper for object.
+   */
+  function wrapIfNeeded(object) {
+    return object && !isWrapper(object) ? wrap(object) : object;
+  }
+
+  /**
+   * Overrides the current wrapper (if any) for node.
+   * @param {Node} node
+   * @param {WrapperNode=} wrapper If left out the wrapper will be created as
+   *     needed next time someone wraps the node.
+   */
+  function rewrap(node, wrapper) {
+    if (wrapper === null)
+      return;
+    assert(isNative(node));
+    assert(wrapper === undefined || isWrapper(wrapper));
+    node.polymerWrapper_ = wrapper;
+  }
+
+  function defineGetter(constructor, name, getter) {
+    Object.defineProperty(constructor.prototype, name, {
+      get: getter,
+      configurable: true,
+      enumerable: true
+    });
+  }
+
+  function defineWrapGetter(constructor, name) {
+    defineGetter(constructor, name, function() {
+      return wrap(this.impl[name]);
+    });
+  }
+
+  /**
+   * Forwards existing methods on the native object to the wrapper methods.
+   * This does not wrap any of the arguments or the return value since the
+   * wrapper implementation already takes care of that.
+   * @param {Array.<Function>} constructors
+   * @parem {Array.<string>} names
+   */
+  function forwardMethodsToWrapper(constructors, names) {
+    constructors.forEach(function(constructor) {
+      names.forEach(function(name) {
+        constructor.prototype[name] = function() {
+          var w = wrapIfNeeded(this);
+          return w[name].apply(w, arguments);
+        };
+      });
+    });
+  }
+
+  scope.assert = assert;
+  scope.constructorTable = constructorTable;
+  scope.defineGetter = defineGetter;
+  scope.defineWrapGetter = defineWrapGetter;
+  scope.forwardMethodsToWrapper = forwardMethodsToWrapper;
+  scope.isWrapperFor = isWrapperFor;
+  scope.mixin = mixin;
+  scope.nativePrototypeTable = nativePrototypeTable;
+  scope.oneOf = oneOf;
+  scope.registerObject = registerObject;
+  scope.registerWrapper = register;
+  scope.rewrap = rewrap;
+  scope.unwrap = unwrap;
+  scope.unwrapIfNeeded = unwrapIfNeeded;
+  scope.wrap = wrap;
+  scope.wrapIfNeeded = wrapIfNeeded;
+  scope.wrappers = wrappers;
+
+})(this.ShadowDOMPolyfill);
+
+// Copyright 2013 The Polymer Authors. All rights reserved.
+// Use of this source code is goverened by a BSD-style
+// license that can be found in the LICENSE file.
+
+(function(scope) {
+  'use strict';
+
+  var forwardMethodsToWrapper = scope.forwardMethodsToWrapper;
+  var mixin = scope.mixin;
+  var registerWrapper = scope.registerWrapper;
+  var unwrap = scope.unwrap;
+  var wrap = scope.wrap;
+  var wrappers = scope.wrappers;
+
+  var wrappedFuns = new WeakMap();
+  var listenersTable = new WeakMap();
+  var handledEventsTable = new WeakMap();
+  var targetTable = new WeakMap();
+  var currentTargetTable = new WeakMap();
+  var relatedTargetTable = new WeakMap();
+  var eventPhaseTable = new WeakMap();
+  var stopPropagationTable = new WeakMap();
+  var stopImmediatePropagationTable = new WeakMap();
+  var eventHandlersTable = new WeakMap();
+  var eventPathTable = new WeakMap();
+
+  function isShadowRoot(node) {
+    return node instanceof wrappers.ShadowRoot;
+  }
+
+  function isInsertionPoint(node) {
+    var localName = node.localName;
+    return localName === 'content' || localName === 'shadow';
+  }
+
+  function isShadowHost(node) {
+    return !!node.shadowRoot;
+  }
+
+  function getEventParent(node) {
+    var dv;
+    return node.parentNode || (dv = node.defaultView) && wrap(dv) || null;
+  }
+
+  // https://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html#dfn-adjusted-parent
+  function calculateParents(node, context, ancestors) {
+    if (ancestors.length)
+      return ancestors.shift();
+
+    // 1.
+    if (isShadowRoot(node))
+      return getInsertionParent(node) || node.host;
+
+    // 2.
+    var eventParents = scope.eventParentsTable.get(node);
+    if (eventParents) {
+      // Copy over the remaining event parents for next iteration.
+      for (var i = 1; i < eventParents.length; i++) {
+        ancestors[i - 1] = eventParents[i];
+      }
+      return eventParents[0];
+    }
+
+    // 3.
+    if (context && isInsertionPoint(node)) {
+      var parentNode = node.parentNode;
+      if (parentNode && isShadowHost(parentNode)) {
+        var trees = scope.getShadowTrees(parentNode);
+        var p = getInsertionParent(context);
+        for (var i = 0; i < trees.length; i++) {
+          if (trees[i].contains(p))
+            return p;
+        }
+      }
+    }
+
+    return getEventParent(node);
+  }
+
+  // https://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html#event-retargeting
+  function retarget(node) {
+    var stack = [];  // 1.
+    var ancestor = node;  // 2.
+    var targets = [];
+    var ancestors = [];
+    while (ancestor) {  // 3.
+      var context = null;  // 3.2.
+      // TODO(arv): Change order of these. If the stack is empty we always end
+      // up pushing ancestor, no matter what.
+      if (isInsertionPoint(ancestor)) {  // 3.1.
+        context = topMostNotInsertionPoint(stack);  // 3.1.1.
+        var top = stack[stack.length - 1] || ancestor;  // 3.1.2.
+        stack.push(top);
+      } else if (!stack.length) {
+        stack.push(ancestor);  // 3.3.
+      }
+      var target = stack[stack.length - 1];  // 3.4.
+      targets.push({target: target, currentTarget: ancestor});  // 3.5.
+      if (isShadowRoot(ancestor))  // 3.6.
+        stack.pop();  // 3.6.1.
+
+      ancestor = calculateParents(ancestor, context, ancestors);  // 3.7.
+    }
+    return targets;
+  }
+
+  function topMostNotInsertionPoint(stack) {
+    for (var i = stack.length - 1; i >= 0; i--) {
+      if (!isInsertionPoint(stack[i]))
+        return stack[i];
+    }
+    return null;
+  }
+
+  // https://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html#dfn-adjusted-related-target
+  function adjustRelatedTarget(target, related) {
+    var ancestors = [];
+    while (target) {  // 3.
+      var stack = [];  // 3.1.
+      var ancestor = related;  // 3.2.
+      var last = undefined;  // 3.3. Needs to be reset every iteration.
+      while (ancestor) {
+        var context = null;
+        if (!stack.length) {
+          stack.push(ancestor);
+        } else {
+          if (isInsertionPoint(ancestor)) {  // 3.4.3.
+            context = topMostNotInsertionPoint(stack);
+            // isDistributed is more general than checking whether last is
+            // assigned into ancestor.
+            if (isDistributed(last)) {  // 3.4.3.2.
+              var head = stack[stack.length - 1];
+              stack.push(head);
+            }
+          }
+        }
+
+        if (inSameTree(ancestor, target))  // 3.4.4.
+          return stack[stack.length - 1];
+
+        if (isShadowRoot(ancestor))  // 3.4.5.
+          stack.pop();
+
+        last = ancestor;  // 3.4.6.
+        ancestor = calculateParents(ancestor, context, ancestors);  // 3.4.7.
+      }
+      if (isShadowRoot(target))  // 3.5.
+        target = target.host;
+      else
+        target = target.parentNode;  // 3.6.
+    }
+  }
+
+  function getInsertionParent(node) {
+    return scope.insertionParentTable.get(node);
+  }
+
+  function isDistributed(node) {
+    return getInsertionParent(node);
+  }
+
+  function rootOfNode(node) {
+    var p;
+    while (p = node.parentNode) {
+      node = p;
+    }
+    return node;
+  }
+
+  function inSameTree(a, b) {
+    return rootOfNode(a) === rootOfNode(b);
+  }
+
+  function enclosedBy(a, b) {
+    if (a === b)
+      return true;
+    if (a instanceof wrappers.ShadowRoot)
+      return enclosedBy(rootOfNode(a.host), b);
+    return false;
+  }
+
+  var mutationEventsAreSilenced = 0;
+
+  function muteMutationEvents() {
+    mutationEventsAreSilenced++;
+  }
+
+  function unmuteMutationEvents() {
+    mutationEventsAreSilenced--;
+  }
+
+  var OriginalMutationEvent = window.MutationEvent;
+
+  function dispatchOriginalEvent(originalEvent) {
+    // Make sure this event is only dispatched once.
+    if (handledEventsTable.get(originalEvent))
+      return;
+    handledEventsTable.set(originalEvent, true);
+
+    // Don't do rendering if this is a mutation event since rendering might
+    // mutate the DOM which would fire more events and we would most likely
+    // just iloop.
+    if (originalEvent instanceof OriginalMutationEvent) {
+      if (mutationEventsAreSilenced)
+        return;
+    } else {
+      scope.renderAllPending();
+    }
+
+    var target = wrap(originalEvent.target);
+    var event = wrap(originalEvent);
+    return dispatchEvent(event, target);
+  }
+
+  function dispatchEvent(event, originalWrapperTarget) {
+    var eventPath = retarget(originalWrapperTarget);
+
+    // For window load events the load event is dispatched at the window but
+    // the target is set to the document.
+    //
+    // http://www.whatwg.org/specs/web-apps/current-work/multipage/the-end.html#the-end
+    //
+    // TODO(arv): Find a less hacky way to do this.
+    if (event.type === 'load' &&
+        eventPath.length === 2 &&
+        eventPath[0].target instanceof wrappers.Document) {
+      eventPath.shift();
+    }
+
+    eventPathTable.set(event, eventPath);
+
+    if (dispatchCapturing(event, eventPath)) {
+      if (dispatchAtTarget(event, eventPath)) {
+        dispatchBubbling(event, eventPath);
+      }
+    }
+
+    eventPhaseTable.set(event, Event.NONE);
+    currentTargetTable.set(event, null);
+
+    return event.defaultPrevented;
+  }
+
+  function dispatchCapturing(event, eventPath) {
+    var phase;
+
+    for (var i = eventPath.length - 1; i > 0; i--) {
+      var target = eventPath[i].target;
+      var currentTarget = eventPath[i].currentTarget;
+      if (target === currentTarget)
+        continue;
+
+      phase = Event.CAPTURING_PHASE;
+      if (!invoke(eventPath[i], event, phase))
+        return false;
+    }
+
+    return true;
+  }
+
+  function dispatchAtTarget(event, eventPath) {
+    var phase = Event.AT_TARGET;
+    return invoke(eventPath[0], event, phase);
+  }
+
+  function dispatchBubbling(event, eventPath) {
+    var bubbles = event.bubbles;
+    var phase;
+
+    for (var i = 1; i < eventPath.length; i++) {
+      var target = eventPath[i].target;
+      var currentTarget = eventPath[i].currentTarget;
+      if (target === currentTarget)
+        phase = Event.AT_TARGET;
+      else if (bubbles && !stopImmediatePropagationTable.get(event))
+        phase = Event.BUBBLING_PHASE;
+      else
+        continue;
+
+      if (!invoke(eventPath[i], event, phase))
+        return;
+    }
+  }
+
+  function invoke(tuple, event, phase) {
+    var target = tuple.target;
+    var currentTarget = tuple.currentTarget;
+
+    var listeners = listenersTable.get(currentTarget);
+    if (!listeners)
+      return true;
+
+    if ('relatedTarget' in event) {
+      var originalEvent = unwrap(event);
+      // X-Tag sets relatedTarget on a CustomEvent. If they do that there is no
+      // way to have relatedTarget return the adjusted target but worse is that
+      // the originalEvent might not have a relatedTarget so we hit an assert
+      // when we try to wrap it.
+      if (originalEvent.relatedTarget) {
+        var relatedTarget = wrap(originalEvent.relatedTarget);
+
+        var adjusted = adjustRelatedTarget(currentTarget, relatedTarget);
+        if (adjusted === target)
+          return true;
+
+        relatedTargetTable.set(event, adjusted);
+      }
+    }
+
+    eventPhaseTable.set(event, phase);
+    var type = event.type;
+
+    var anyRemoved = false;
+    targetTable.set(event, target);
+    currentTargetTable.set(event, currentTarget);
+
+    for (var i = 0; i < listeners.length; i++) {
+      var listener = listeners[i];
+      if (listener.removed) {
+        anyRemoved = true;
+        continue;
+      }
+
+      if (listener.type !== type ||
+          !listener.capture && phase === Event.CAPTURING_PHASE ||
+          listener.capture && phase === Event.BUBBLING_PHASE) {
+        continue;
+      }
+
+      try {
+        if (typeof listener.handler === 'function')
+          listener.handler.call(currentTarget, event);
+        else
+          listener.handler.handleEvent(event);
+
+        if (stopImmediatePropagationTable.get(event))
+          return false;
+
+      } catch (ex) {
+        if (window.onerror)
+          window.onerror(ex.message);
+        else
+          console.error(ex, ex.stack);
+      }
+    }
+
+    if (anyRemoved) {
+      var copy = listeners.slice();
+      listeners.length = 0;
+      for (var i = 0; i < copy.length; i++) {
+        if (!copy[i].removed)
+          listeners.push(copy[i]);
+      }
+    }
+
+    return !stopPropagationTable.get(event);
+  }
+
+  function Listener(type, handler, capture) {
+    this.type = type;
+    this.handler = handler;
+    this.capture = Boolean(capture);
+  }
+  Listener.prototype = {
+    equals: function(that) {
+      return this.handler === that.handler && this.type === that.type &&
+          this.capture === that.capture;
+    },
+    get removed() {
+      return this.handler === null;
+    },
+    remove: function() {
+      this.handler = null;
+    }
+  };
+
+  var OriginalEvent = window.Event;
+
+  /**
+   * Creates a new Event wrapper or wraps an existin native Event object.
+   * @param {string|Event} type
+   * @param {Object=} options
+   * @constructor
+   */
+  function Event(type, options) {
+    if (type instanceof OriginalEvent)
+      this.impl = type;
+    else
+      return wrap(constructEvent(OriginalEvent, 'Event', type, options));
+  }
+  Event.prototype = {
+    get target() {
+      return targetTable.get(this);
+    },
+    get currentTarget() {
+      return currentTargetTable.get(this);
+    },
+    get eventPhase() {
+      return eventPhaseTable.get(this);
+    },
+    get path() {
+      var nodeList = new wrappers.NodeList();
+      var eventPath = eventPathTable.get(this);
+      if (eventPath) {
+        var index = 0;
+        var lastIndex = eventPath.length - 1;
+        var baseRoot = rootOfNode(currentTargetTable.get(this));
+
+        for (var i = 0; i <= lastIndex; i++) {
+          var currentTarget = eventPath[i].currentTarget;
+          var currentRoot = rootOfNode(currentTarget);
+          if (enclosedBy(baseRoot, currentRoot) &&
+              // Make sure we do not add Window to the path.
+              (i !== lastIndex || currentTarget instanceof wrappers.Node)) {
+            nodeList[index++] = currentTarget;
+          }
+        }
+        nodeList.length = index;
+      }
+      return nodeList;
+    },
+    stopPropagation: function() {
+      stopPropagationTable.set(this, true);
+    },
+    stopImmediatePropagation: function() {
+      stopPropagationTable.set(this, true);
+      stopImmediatePropagationTable.set(this, true);
+    }
+  };
+  registerWrapper(OriginalEvent, Event, document.createEvent('Event'));
+
+  function unwrapOptions(options) {
+    if (!options || !options.relatedTarget)
+      return options;
+    return Object.create(options, {
+      relatedTarget: {value: unwrap(options.relatedTarget)}
+    });
+  }
+
+  function registerGenericEvent(name, SuperEvent, prototype) {
+    var OriginalEvent = window[name];
+    var GenericEvent = function(type, options) {
+      if (type instanceof OriginalEvent)
+        this.impl = type;
+      else
+        return wrap(constructEvent(OriginalEvent, name, type, options));
+    };
+    GenericEvent.prototype = Object.create(SuperEvent.prototype);
+    if (prototype)
+      mixin(GenericEvent.prototype, prototype);
+    if (OriginalEvent) {
+      // IE does not support event constructors but FocusEvent can only be
+      // created using new FocusEvent in Firefox.
+      // https://bugzilla.mozilla.org/show_bug.cgi?id=882165
+      if (OriginalEvent.prototype['init' + name]) {
+        registerWrapper(OriginalEvent, GenericEvent,
+                        document.createEvent(name));
+      } else {
+        registerWrapper(OriginalEvent, GenericEvent, new OriginalEvent('temp'));
+      }
+    }
+    return GenericEvent;
+  }
+
+  var UIEvent = registerGenericEvent('UIEvent', Event);
+  var CustomEvent = registerGenericEvent('CustomEvent', Event);
+
+  var relatedTargetProto = {
+    get relatedTarget() {
+      return relatedTargetTable.get(this) || wrap(unwrap(this).relatedTarget);
+    }
+  };
+
+  function getInitFunction(name, relatedTargetIndex) {
+    return function() {
+      arguments[relatedTargetIndex] = unwrap(arguments[relatedTargetIndex]);
+      var impl = unwrap(this);
+      impl[name].apply(impl, arguments);
+    };
+  }
+
+  var mouseEventProto = mixin({
+    initMouseEvent: getInitFunction('initMouseEvent', 14)
+  }, relatedTargetProto);
+
+  var focusEventProto = mixin({
+    initFocusEvent: getInitFunction('initFocusEvent', 5)
+  }, relatedTargetProto);
+
+  var MouseEvent = registerGenericEvent('MouseEvent', UIEvent, mouseEventProto);
+  var FocusEvent = registerGenericEvent('FocusEvent', UIEvent, focusEventProto);
+
+  var MutationEvent = registerGenericEvent('MutationEvent', Event, {
+    initMutationEvent: getInitFunction('initMutationEvent', 3),
+    get relatedNode() {
+      return wrap(this.impl.relatedNode);
+    },
+  });
+
+  // In case the browser does not support event constructors we polyfill that
+  // by calling `createEvent('Foo')` and `initFooEvent` where the arguments to
+  // `initFooEvent` are derived from the registered default event init dict.
+  var defaultInitDicts = Object.create(null);
+
+  var supportsEventConstructors = (function() {
+    try {
+      new window.MouseEvent('click');
+    } catch (ex) {
+      return false;
+    }
+    return true;
+  })();
+
+  /**
+   * Constructs a new native event.
+   */
+  function constructEvent(OriginalEvent, name, type, options) {
+    if (supportsEventConstructors)
+      return new OriginalEvent(type, unwrapOptions(options));
+
+    // Create the arguments from the default dictionary.
+    var event = unwrap(document.createEvent(name));
+    var defaultDict = defaultInitDicts[name];
+    var args = [type];
+    Object.keys(defaultDict).forEach(function(key) {
+      var v = options != null && key in options ?
+          options[key] : defaultDict[key];
+      if (key === 'relatedTarget')
+        v = unwrap(v);
+      args.push(v);
+    });
+    event['init' + name].apply(event, args);
+    return event;
+  }
+
+  if (!supportsEventConstructors) {
+    var configureEventConstructor = function(name, initDict, superName) {
+      if (superName) {
+        var superDict = defaultInitDicts[superName];
+        initDict = mixin(mixin({}, superDict), initDict);
+      }
+
+      defaultInitDicts[name] = initDict;
+    };
+
+    // The order of the default event init dictionary keys is important, the
+    // arguments to initFooEvent is derived from that.
+    configureEventConstructor('Event', {bubbles: false, cancelable: false});
+    configureEventConstructor('CustomEvent', {detail: null}, 'Event');
+    configureEventConstructor('UIEvent', {view: null, detail: 0}, 'Event');
+    configureEventConstructor('MouseEvent', {
+      screenX: 0,
+      screenY: 0,
+      clientX: 0,
+      clientY: 0,
+      ctrlKey: false,
+      altKey: false,
+      shiftKey: false,
+      metaKey: false,
+      button: 0,
+      relatedTarget: null
+    }, 'UIEvent');
+    configureEventConstructor('FocusEvent', {relatedTarget: null}, 'UIEvent');
+  }
+
+  function isValidListener(fun) {
+    if (typeof fun === 'function')
+      return true;
+    return fun && fun.handleEvent;
+  }
+
+  var OriginalEventTarget = window.EventTarget;
+
+  /**
+   * This represents a wrapper for an EventTarget.
+   * @param {!EventTarget} impl The original event target.
+   * @constructor
+   */
+  function EventTarget(impl) {
+    this.impl = impl;
+  }
+
+  // Node and Window have different internal type checks in WebKit so we cannot
+  // use the same method as the original function.
+  var methodNames = [
+    'addEventListener',
+    'removeEventListener',
+    'dispatchEvent'
+  ];
+
+  [Node, Window].forEach(function(constructor) {
+    var p = constructor.prototype;
+    methodNames.forEach(function(name) {
+      Object.defineProperty(p, name + '_', {value: p[name]});
+    });
+  });
+
+  function getTargetToListenAt(wrapper) {
+    if (wrapper instanceof wrappers.ShadowRoot)
+      wrapper = wrapper.host;
+    return unwrap(wrapper);
+  }
+
+  EventTarget.prototype = {
+    addEventListener: function(type, fun, capture) {
+      if (!isValidListener(fun))
+        return;
+
+      var listener = new Listener(type, fun, capture);
+      var listeners = listenersTable.get(this);
+      if (!listeners) {
+        listeners = [];
+        listenersTable.set(this, listeners);
+      } else {
+        // Might have a duplicate.
+        for (var i = 0; i < listeners.length; i++) {
+          if (listener.equals(listeners[i]))
+            return;
+        }
+      }
+
+      listeners.push(listener);
+
+      var target = getTargetToListenAt(this);
+      target.addEventListener_(type, dispatchOriginalEvent, true);
+    },
+    removeEventListener: function(type, fun, capture) {
+      capture = Boolean(capture);
+      var listeners = listenersTable.get(this);
+      if (!listeners)
+        return;
+      var count = 0, found = false;
+      for (var i = 0; i < listeners.length; i++) {
+        if (listeners[i].type === type && listeners[i].capture === capture) {
+          count++;
+          if (listeners[i].handler === fun) {
+            found = true;
+            listeners[i].remove();
+          }
+        }
+      }
+
+      if (found && count === 1) {
+        var target = getTargetToListenAt(this);
+        target.removeEventListener_(type, dispatchOriginalEvent, true);
+      }
+    },
+    dispatchEvent: function(event) {
+      var target = getTargetToListenAt(this);
+      var nativeEvent = unwrap(event);
+      // Allow dispatching the same event again. This is safe because if user
+      // code calls this during an existing dispatch of the same event the
+      // native dispatchEvent throws (that is required by the spec).
+      handledEventsTable.set(nativeEvent, false);
+      return target.dispatchEvent_(nativeEvent);
+    }
+  };
+
+  if (OriginalEventTarget)
+    registerWrapper(OriginalEventTarget, EventTarget);
+
+  function wrapEventTargetMethods(constructors) {
+    forwardMethodsToWrapper(constructors, methodNames);
+  }
+
+  var originalElementFromPoint = document.elementFromPoint;
+
+  function elementFromPoint(self, document, x, y) {
+    scope.renderAllPending();
+
+    var element = wrap(originalElementFromPoint.call(document.impl, x, y));
+    var targets = retarget(element, this)
+    for (var i = 0; i < targets.length; i++) {
+      var target = targets[i];
+      if (target.currentTarget === self)
+        return target.target;
+    }
+    return null;
+  }
+
+  /**
+   * Returns a function that is to be used as a getter for `onfoo` properties.
+   * @param {string} name
+   * @return {Function}
+   */
+  function getEventHandlerGetter(name) {
+    return function() {
+      var inlineEventHandlers = eventHandlersTable.get(this);
+      return inlineEventHandlers && inlineEventHandlers[name] &&
+          inlineEventHandlers[name].value || null;
+     };
+  }
+
+  /**
+   * Returns a function that is to be used as a setter for `onfoo` properties.
+   * @param {string} name
+   * @return {Function}
+   */
+  function getEventHandlerSetter(name) {
+    var eventType = name.slice(2);
+    return function(value) {
+      var inlineEventHandlers = eventHandlersTable.get(this);
+      if (!inlineEventHandlers) {
+        inlineEventHandlers = Object.create(null);
+        eventHandlersTable.set(this, inlineEventHandlers);
+      }
+
+      var old = inlineEventHandlers[name];
+      if (old)
+        this.removeEventListener(eventType, old.wrapped, false);
+
+      if (typeof value === 'function') {
+        var wrapped = function(e) {
+          var rv = value.call(this, e);
+          if (rv === false)
+            e.preventDefault();
+          else if (name === 'onbeforeunload' && typeof rv === 'string')
+            e.returnValue = rv;
+          // mouseover uses true for preventDefault but preventDefault for
+          // mouseover is ignored by browsers these day.
+        };
+
+        this.addEventListener(eventType, wrapped, false);
+        inlineEventHandlers[name] = {
+          value: value,
+          wrapped: wrapped
+        };
+      }
+    };
+  }
+
+  scope.adjustRelatedTarget = adjustRelatedTarget;
+  scope.elementFromPoint = elementFromPoint;
+  scope.getEventHandlerGetter = getEventHandlerGetter;
+  scope.getEventHandlerSetter = getEventHandlerSetter;
+  scope.muteMutationEvents = muteMutationEvents;
+  scope.unmuteMutationEvents = unmuteMutationEvents;
+  scope.wrapEventTargetMethods = wrapEventTargetMethods;
+  scope.wrappers.CustomEvent = CustomEvent;
+  scope.wrappers.Event = Event;
+  scope.wrappers.EventTarget = EventTarget;
+  scope.wrappers.FocusEvent = FocusEvent;
+  scope.wrappers.MouseEvent = MouseEvent;
+  scope.wrappers.MutationEvent = MutationEvent;
+  scope.wrappers.UIEvent = UIEvent;
+
+})(this.ShadowDOMPolyfill);
+
+// Copyright 2012 The Polymer Authors. All rights reserved.
+// Use of this source code is goverened by a BSD-style
+// license that can be found in the LICENSE file.
+
+(function(scope) {
+  'use strict';
+
+  var wrap = scope.wrap;
+
+  function nonEnum(obj, prop) {
+    Object.defineProperty(obj, prop, {enumerable: false});
+  }
+
+  function NodeList() {
+    this.length = 0;
+    nonEnum(this, 'length');
+  }
+  NodeList.prototype = {
+    item: function(index) {
+      return this[index];
+    }
+  };
+  nonEnum(NodeList.prototype, 'item');
+
+  function wrapNodeList(list) {
+    if (list == null)
+      return list;
+    var wrapperList = new NodeList();
+    for (var i = 0, length = list.length; i < length; i++) {
+      wrapperList[i] = wrap(list[i]);
+    }
+    wrapperList.length = length;
+    return wrapperList;
+  }
+
+  function addWrapNodeListMethod(wrapperConstructor, name) {
+    wrapperConstructor.prototype[name] = function() {
+      return wrapNodeList(this.impl[name].apply(this.impl, arguments));
+    };
+  }
+
+  scope.wrappers.NodeList = NodeList;
+  scope.addWrapNodeListMethod = addWrapNodeListMethod;
+  scope.wrapNodeList = wrapNodeList;
+
+})(this.ShadowDOMPolyfill);
+// Copyright 2012 The Polymer Authors. All rights reserved.
+// Use of this source code is goverened by a BSD-style
+// license that can be found in the LICENSE file.
+
+(function(scope) {
+  'use strict';
+
+  var EventTarget = scope.wrappers.EventTarget;
+  var NodeList = scope.wrappers.NodeList;
+  var defineWrapGetter = scope.defineWrapGetter;
+  var assert = scope.assert;
+  var mixin = scope.mixin;
+  var registerWrapper = scope.registerWrapper;
+  var unwrap = scope.unwrap;
+  var wrap = scope.wrap;
+  var wrapIfNeeded = scope.wrapIfNeeded;
+
+  function assertIsNodeWrapper(node) {
+    assert(node instanceof Node);
+  }
+
+  /**
+   * Collects nodes from a DocumentFragment or a Node for removal followed
+   * by an insertion.
+   *
+   * This updates the internal pointers for node, previousNode and nextNode.
+   */
+  function collectNodes(node, parentNode, previousNode, nextNode) {
+    if (!(node instanceof DocumentFragment)) {
+      if (node.parentNode)
+        node.parentNode.removeChild(node);
+      node.parentNode_ = parentNode;
+      node.previousSibling_ = previousNode;
+      node.nextSibling_ = nextNode;
+      if (previousNode)
+        previousNode.nextSibling_ = node;
+      if (nextNode)
+        nextNode.previousSibling_ = node;
+      return [node];
+    }
+
+    var nodes = [];
+    for (var child = node.firstChild; child; child = child.nextSibling) {
+      nodes.push(child);
+    }
+
+    for (var i = nodes.length - 1; i >= 0; i--) {
+      node.removeChild(nodes[i]);
+      nodes[i].parentNode_ = parentNode;
+    }
+
+    for (var i = 0; i < nodes.length; i++) {
+      nodes[i].previousSibling_ = nodes[i - 1] || previousNode;
+      nodes[i].nextSibling_ = nodes[i + 1] || nextNode;
+    }
+
+    if (previousNode)
+      previousNode.nextSibling_ = nodes[0];
+    if (nextNode)
+      nextNode.previousSibling_ = nodes[nodes.length - 1];
+
+    return nodes;
+  }
+
+  function collectNodesNoNeedToUpdatePointers(node) {
+    if (node instanceof DocumentFragment) {
+      var nodes = [];
+      var i = 0;
+      for (var child = node.firstChild; child; child = child.nextSibling) {
+        nodes[i++] = child;
+      }
+      return nodes;
+    }
+    return [node];
+  }
+
+  function nodesWereAdded(nodes) {
+    for (var i = 0; i < nodes.length; i++) {
+      nodes[i].nodeWasAdded_();
+    }
+  }
+
+  function ensureSameOwnerDocument(parent, child) {
+    var ownerDoc = parent.nodeType === Node.DOCUMENT_NODE ?
+        parent : parent.ownerDocument;
+    if (ownerDoc !== child.ownerDocument)
+      ownerDoc.adoptNode(child);
+  }
+
+  function adoptNodesIfNeeded(owner, nodes) {
+    if (!nodes.length)
+      return;
+
+    var ownerDoc = owner.ownerDocument;
+
+    // All nodes have the same ownerDocument when we get here.
+    if (ownerDoc === nodes[0].ownerDocument)
+      return;
+
+    for (var i = 0; i < nodes.length; i++) {
+      scope.adoptNodeNoRemove(nodes[i], ownerDoc);
+    }
+  }
+
+  function unwrapNodesForInsertion(owner, nodes) {
+    adoptNodesIfNeeded(owner, nodes);
+    var length = nodes.length;
+
+    if (length === 1)
+      return unwrap(nodes[0]);
+
+    var df = unwrap(owner.ownerDocument.createDocumentFragment());
+    for (var i = 0; i < length; i++) {
+      df.appendChild(unwrap(nodes[i]));
+    }
+    return df;
+  }
+
+  function removeAllChildNodes(wrapper) {
+    if (wrapper.invalidateShadowRenderer()) {
+      var childWrapper = wrapper.firstChild;
+      while (childWrapper) {
+        assert(childWrapper.parentNode === wrapper);
+        var nextSibling = childWrapper.nextSibling;
+        var childNode = unwrap(childWrapper);
+        var parentNode = childNode.parentNode;
+        if (parentNode)
+          originalRemoveChild.call(parentNode, childNode);
+        childWrapper.previousSibling_ = childWrapper.nextSibling_ =
+            childWrapper.parentNode_ = null;
+        childWrapper = nextSibling;
+      }
+      wrapper.firstChild_ = wrapper.lastChild_ = null;
+    } else {
+      var node = unwrap(wrapper);
+      var child = node.firstChild;
+      var nextSibling;
+      while (child) {
+        nextSibling = child.nextSibling;
+        originalRemoveChild.call(node, child);
+        child = nextSibling;
+      }
+    }
+  }
+
+  function invalidateParent(node) {
+    var p = node.parentNode;
+    return p && p.invalidateShadowRenderer();
+  }
+
+  var OriginalNode = window.Node;
+
+  /**
+   * This represents a wrapper of a native DOM node.
+   * @param {!Node} original The original DOM node, aka, the visual DOM node.
+   * @constructor
+   * @extends {EventTarget}
+   */
+  function Node(original) {
+    assert(original instanceof OriginalNode);
+
+    EventTarget.call(this, original);
+
+    // These properties are used to override the visual references with the
+    // logical ones. If the value is undefined it means that the logical is the
+    // same as the visual.
+
+    /**
+     * @type {Node|undefined}
+     * @private
+     */
+    this.parentNode_ = undefined;
+
+    /**
+     * @type {Node|undefined}
+     * @private
+     */
+    this.firstChild_ = undefined;
+
+    /**
+     * @type {Node|undefined}
+     * @private
+     */
+    this.lastChild_ = undefined;
+
+    /**
+     * @type {Node|undefined}
+     * @private
+     */
+    this.nextSibling_ = undefined;
+
+    /**
+     * @type {Node|undefined}
+     * @private
+     */
+    this.previousSibling_ = undefined;
+  };
+
+  var OriginalDocumentFragment = window.DocumentFragment;
+  var originalAppendChild = OriginalNode.prototype.appendChild;
+  var originalCompareDocumentPosition =
+      OriginalNode.prototype.compareDocumentPosition;
+  var originalInsertBefore = OriginalNode.prototype.insertBefore;
+  var originalRemoveChild = OriginalNode.prototype.removeChild;
+  var originalReplaceChild = OriginalNode.prototype.replaceChild;
+
+  var isIe = /Trident/.test(navigator.userAgent);
+
+  var removeChildOriginalHelper = isIe ?
+      function(parent, child) {
+        try {
+          originalRemoveChild.call(parent, child);
+        } catch (ex) {
+          if (!(parent instanceof OriginalDocumentFragment))
+            throw ex;
+        }
+      } :
+      function(parent, child) {
+        originalRemoveChild.call(parent, child);
+      };
+
+  Node.prototype = Object.create(EventTarget.prototype);
+  mixin(Node.prototype, {
+    appendChild: function(childWrapper) {
+      assertIsNodeWrapper(childWrapper);
+
+      var nodes;
+
+      if (this.invalidateShadowRenderer() || invalidateParent(childWrapper)) {
+        var previousNode = this.lastChild;
+        var nextNode = null;
+        nodes = collectNodes(childWrapper, this, previousNode, nextNode);
+
+        this.lastChild_ = nodes[nodes.length - 1];
+        if (!previousNode)
+          this.firstChild_ = nodes[0];
+
+        originalAppendChild.call(this.impl, unwrapNodesForInsertion(this, nodes));
+      } else {
+        nodes = collectNodesNoNeedToUpdatePointers(childWrapper)
+        ensureSameOwnerDocument(this, childWrapper);
+        originalAppendChild.call(this.impl, unwrap(childWrapper));
+      }
+
+      nodesWereAdded(nodes);
+
+      return childWrapper;
+    },
+
+    insertBefore: function(childWrapper, refWrapper) {
+      // TODO(arv): Unify with appendChild
+      if (!refWrapper)
+        return this.appendChild(childWrapper);
+
+      assertIsNodeWrapper(childWrapper);
+      assertIsNodeWrapper(refWrapper);
+      assert(refWrapper.parentNode === this);
+
+      var nodes;
+
+      if (this.invalidateShadowRenderer() || invalidateParent(childWrapper)) {
+        var previousNode = refWrapper.previousSibling;
+        var nextNode = refWrapper;
+        nodes = collectNodes(childWrapper, this, previousNode, nextNode);
+
+        if (this.firstChild === refWrapper)
+          this.firstChild_ = nodes[0];
+
+        // insertBefore refWrapper no matter what the parent is?
+        var refNode = unwrap(refWrapper);
+        var parentNode = refNode.parentNode;
+
+        if (parentNode) {
+          originalInsertBefore.call(
+              parentNode,
+              unwrapNodesForInsertion(this, nodes),
+              refNode);
+        } else {
+          adoptNodesIfNeeded(this, nodes);
+        }
+      } else {
+        nodes = collectNodesNoNeedToUpdatePointers(childWrapper);
+        ensureSameOwnerDocument(this, childWrapper);
+        originalInsertBefore.call(this.impl, unwrap(childWrapper),
+                                  unwrap(refWrapper));
+      }
+
+      nodesWereAdded(nodes);
+
+      return childWrapper;
+    },
+
+    removeChild: function(childWrapper) {
+      assertIsNodeWrapper(childWrapper);
+      if (childWrapper.parentNode !== this) {
+        // IE has invalid DOM trees at times.
+        var found = false;
+        var childNodes = this.childNodes;
+        for (var ieChild = this.firstChild; ieChild;
+             ieChild = ieChild.nextSibling) {
+          if (ieChild === childWrapper) {
+            found = true;
+            break;
+          }
+        }
+        if (!found) {
+          // TODO(arv): DOMException
+          throw new Error('NotFoundError');
+        }
+      }
+
+      var childNode = unwrap(childWrapper);
+      if (this.invalidateShadowRenderer()) {
+
+        // We need to remove the real node from the DOM before updating the
+        // pointers. This is so that that mutation event is dispatched before
+        // the pointers have changed.
+        var thisFirstChild = this.firstChild;
+        var thisLastChild = this.lastChild;
+        var childWrapperNextSibling = childWrapper.nextSibling;
+        var childWrapperPreviousSibling = childWrapper.previousSibling;
+
+        var parentNode = childNode.parentNode;
+        if (parentNode)
+          removeChildOriginalHelper(parentNode, childNode);
+
+        if (thisFirstChild === childWrapper)
+          this.firstChild_ = childWrapperNextSibling;
+        if (thisLastChild === childWrapper)
+          this.lastChild_ = childWrapperPreviousSibling;
+        if (childWrapperPreviousSibling)
+          childWrapperPreviousSibling.nextSibling_ = childWrapperNextSibling;
+        if (childWrapperNextSibling) {
+          childWrapperNextSibling.previousSibling_ =
+              childWrapperPreviousSibling;
+        }
+
+        childWrapper.previousSibling_ = childWrapper.nextSibling_ =
+            childWrapper.parentNode_ = undefined;
+      } else {
+        removeChildOriginalHelper(this.impl, childNode);
+      }
+
+      return childWrapper;
+    },
+
+    replaceChild: function(newChildWrapper, oldChildWrapper) {
+      assertIsNodeWrapper(newChildWrapper);
+      assertIsNodeWrapper(oldChildWrapper);
+
+      if (oldChildWrapper.parentNode !== this) {
+        // TODO(arv): DOMException
+        throw new Error('NotFoundError');
+      }
+
+      var oldChildNode = unwrap(oldChildWrapper);
+      var nodes;
+
+      if (this.invalidateShadowRenderer() ||
+          invalidateParent(newChildWrapper)) {
+        var previousNode = oldChildWrapper.previousSibling;
+        var nextNode = oldChildWrapper.nextSibling;
+        if (nextNode === newChildWrapper)
+          nextNode = newChildWrapper.nextSibling;
+        nodes = collectNodes(newChildWrapper, this, previousNode, nextNode);
+
+        if (this.firstChild === oldChildWrapper)
+          this.firstChild_ = nodes[0];
+        if (this.lastChild === oldChildWrapper)
+          this.lastChild_ = nodes[nodes.length - 1];
+
+        oldChildWrapper.previousSibling_ = oldChildWrapper.nextSibling_ =
+            oldChildWrapper.parentNode_ = undefined;
+
+        // replaceChild no matter what the parent is?
+        if (oldChildNode.parentNode) {
+          originalReplaceChild.call(
+              oldChildNode.parentNode,
+              unwrapNodesForInsertion(this, nodes),
+              oldChildNode);
+        }
+      } else {
+        nodes = collectNodesNoNeedToUpdatePointers(newChildWrapper);
+        ensureSameOwnerDocument(this, newChildWrapper);
+        originalReplaceChild.call(this.impl, unwrap(newChildWrapper),
+                                  oldChildNode);
+      }
+
+      nodesWereAdded(nodes);
+
+      return oldChildWrapper;
+    },
+
+    /**
+     * Called after a node was added. Subclasses override this to invalidate
+     * the renderer as needed.
+     * @private
+     */
+    nodeWasAdded_: function() {
+      for (var child = this.firstChild; child; child = child.nextSibling) {
+        child.nodeWasAdded_();
+      }
+    },
+
+    hasChildNodes: function() {
+      return this.firstChild !== null;
+    },
+
+    /** @type {Node} */
+    get parentNode() {
+      // If the parentNode has not been overridden, use the original parentNode.
+      return this.parentNode_ !== undefined ?
+          this.parentNode_ : wrap(this.impl.parentNode);
+    },
+
+    /** @type {Node} */
+    get firstChild() {
+      return this.firstChild_ !== undefined ?
+          this.firstChild_ : wrap(this.impl.firstChild);
+    },
+
+    /** @type {Node} */
+    get lastChild() {
+      return this.lastChild_ !== undefined ?
+          this.lastChild_ : wrap(this.impl.lastChild);
+    },
+
+    /** @type {Node} */
+    get nextSibling() {
+      return this.nextSibling_ !== undefined ?
+          this.nextSibling_ : wrap(this.impl.nextSibling);
+    },
+
+    /** @type {Node} */
+    get previousSibling() {
+      return this.previousSibling_ !== undefined ?
+          this.previousSibling_ : wrap(this.impl.previousSibling);
+    },
+
+    get parentElement() {
+      var p = this.parentNode;
+      while (p && p.nodeType !== Node.ELEMENT_NODE) {
+        p = p.parentNode;
+      }
+      return p;
+    },
+
+    get textContent() {
+      // TODO(arv): This should fallback to this.impl.textContent if there
+      // are no shadow trees below or above the context node.
+      var s = '';
+      for (var child = this.firstChild; child; child = child.nextSibling) {
+        s += child.textContent;
+      }
+      return s;
+    },
+    set textContent(textContent) {
+      if (this.invalidateShadowRenderer()) {
+        removeAllChildNodes(this);
+        if (textContent !== '') {
+          var textNode = this.impl.ownerDocument.createTextNode(textContent);
+          this.appendChild(textNode);
+        }
+      } else {
+        this.impl.textContent = textContent;
+      }
+    },
+
+    get childNodes() {
+      var wrapperList = new NodeList();
+      var i = 0;
+      for (var child = this.firstChild; child; child = child.nextSibling) {
+        wrapperList[i++] = child;
+      }
+      wrapperList.length = i;
+      return wrapperList;
+    },
+
+    cloneNode: function(deep) {
+      if (!this.invalidateShadowRenderer())
+        return wrap(this.impl.cloneNode(deep));
+
+      var clone = wrap(this.impl.cloneNode(false));
+      if (deep) {
+        for (var child = this.firstChild; child; child = child.nextSibling) {
+          clone.appendChild(child.cloneNode(true));
+        }
+      }
+      // TODO(arv): Some HTML elements also clone other data like value.
+      return clone;
+    },
+
+    contains: function(child) {
+      if (!child)
+        return false;
+
+      child = wrapIfNeeded(child);
+
+      // TODO(arv): Optimize using ownerDocument etc.
+      if (child === this)
+        return true;
+      var parentNode = child.parentNode;
+      if (!parentNode)
+        return false;
+      return this.contains(parentNode);
+    },
+
+    compareDocumentPosition: function(otherNode) {
+      // This only wraps, it therefore only operates on the composed DOM and not
+      // the logical DOM.
+      return originalCompareDocumentPosition.call(this.impl, unwrap(otherNode));
+    }
+  });
+
+  defineWrapGetter(Node, 'ownerDocument');
+
+  // We use a DocumentFragment as a base and then delete the properties of
+  // DocumentFragment.prototype from the wrapper Node. Since delete makes
+  // objects slow in some JS engines we recreate the prototype object.
+  registerWrapper(OriginalNode, Node, document.createDocumentFragment());
+  delete Node.prototype.querySelector;
+  delete Node.prototype.querySelectorAll;
+  Node.prototype = mixin(Object.create(EventTarget.prototype), Node.prototype);
+
+  scope.wrappers.Node = Node;
+
+})(this.ShadowDOMPolyfill);
+
+// Copyright 2013 The Polymer Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+(function(scope) {
+  'use strict';
+
+  function findOne(node, selector) {
+    var m, el = node.firstElementChild;
+    while (el) {
+      if (el.matches(selector))
+        return el;
+      m = findOne(el, selector);
+      if (m)
+        return m;
+      el = el.nextElementSibling;
+    }
+    return null;
+  }
+
+  function findAll(node, selector, results) {
+    var el = node.firstElementChild;
+    while (el) {
+      if (el.matches(selector))
+        results[results.length++] = el;
+      findAll(el, selector, results);
+      el = el.nextElementSibling;
+    }
+    return results;
+  }
+
+  // find and findAll will only match Simple Selectors,
+  // Structural Pseudo Classes are not guarenteed to be correct
+  // http://www.w3.org/TR/css3-selectors/#simple-selectors
+
+  var SelectorsInterface = {
+    querySelector: function(selector) {
+      return findOne(this, selector);
+    },
+    querySelectorAll: function(selector) {
+      return findAll(this, selector, new NodeList())
+    }
+  };
+
+  var GetElementsByInterface = {
+    getElementsByTagName: function(tagName) {
+      // TODO(arv): Check tagName?
+      return this.querySelectorAll(tagName);
+    },
+    getElementsByClassName: function(className) {
+      // TODO(arv): Check className?
+      return this.querySelectorAll('.' + className);
+    },
+    getElementsByTagNameNS: function(ns, tagName) {
+      if (ns === '*')
+        return this.getElementsByTagName(tagName);
+
+      // TODO(arv): Check tagName?
+      var result = new NodeList;
+      var els = this.getElementsByTagName(tagName);
+      for (var i = 0, j = 0; i < els.length; i++) {
+        if (els[i].namespaceURI === ns)
+          result[j++] = els[i];
+      }
+      result.length = j;
+      return result;
+    }
+  };
+
+  scope.GetElementsByInterface = GetElementsByInterface;
+  scope.SelectorsInterface = SelectorsInterface;
+
+})(this.ShadowDOMPolyfill);
+
+// Copyright 2013 The Polymer Authors. All rights reserved.
+// Use of this source code is goverened by a BSD-style
+// license that can be found in the LICENSE file.
+
+(function(scope) {
+  'use strict';
+
+  var NodeList = scope.wrappers.NodeList;
+
+  function forwardElement(node) {
+    while (node && node.nodeType !== Node.ELEMENT_NODE) {
+      node = node.nextSibling;
+    }
+    return node;
+  }
+
+  function backwardsElement(node) {
+    while (node && node.nodeType !== Node.ELEMENT_NODE) {
+      node = node.previousSibling;
+    }
+    return node;
+  }
+
+  var ParentNodeInterface = {
+    get firstElementChild() {
+      return forwardElement(this.firstChild);
+    },
+
+    get lastElementChild() {
+      return backwardsElement(this.lastChild);
+    },
+
+    get childElementCount() {
+      var count = 0;
+      for (var child = this.firstElementChild;
+           child;
+           child = child.nextElementSibling) {
+        count++;
+      }
+      return count;
+    },
+
+    get children() {
+      var wrapperList = new NodeList();
+      var i = 0;
+      for (var child = this.firstElementChild;
+           child;
+           child = child.nextElementSibling) {
+        wrapperList[i++] = child;
+      }
+      wrapperList.length = i;
+      return wrapperList;
+    }
+  };
+
+  var ChildNodeInterface = {
+    get nextElementSibling() {
+      return forwardElement(this.nextSibling);
+    },
+
+    get previousElementSibling() {
+      return backwardsElement(this.previousSibling);
+    }
+  };
+
+  scope.ChildNodeInterface = ChildNodeInterface;
+  scope.ParentNodeInterface = ParentNodeInterface;
+
+})(this.ShadowDOMPolyfill);
+
+// Copyright 2013 The Polymer Authors. All rights reserved.
+// Use of this source code is goverened by a BSD-style
+// license that can be found in the LICENSE file.
+
+(function(scope) {
+  'use strict';
+
+  var ChildNodeInterface = scope.ChildNodeInterface;
+  var Node = scope.wrappers.Node;
+  var mixin = scope.mixin;
+  var registerWrapper = scope.registerWrapper;
+
+  var OriginalCharacterData = window.CharacterData;
+
+  function CharacterData(node) {
+    Node.call(this, node);
+  }
+  CharacterData.prototype = Object.create(Node.prototype);
+  mixin(CharacterData.prototype, {
+    get textContent() {
+      return this.data;
+    },
+    set textContent(value) {
+      this.data = value;
+    }
+  });
+
+  mixin(CharacterData.prototype, ChildNodeInterface);
+
+  registerWrapper(OriginalCharacterData, CharacterData,
+                  document.createTextNode(''));
+
+  scope.wrappers.CharacterData = CharacterData;
+})(this.ShadowDOMPolyfill);
+
+// Copyright 2013 The Polymer Authors. All rights reserved.
+// Use of this source code is goverened by a BSD-style
+// license that can be found in the LICENSE file.
+
+(function(scope) {
+  'use strict';
+
+  var ChildNodeInterface = scope.ChildNodeInterface;
+  var GetElementsByInterface = scope.GetElementsByInterface;
+  var Node = scope.wrappers.Node;
+  var ParentNodeInterface = scope.ParentNodeInterface;
+  var SelectorsInterface = scope.SelectorsInterface;
+  var addWrapNodeListMethod = scope.addWrapNodeListMethod;
+  var mixin = scope.mixin;
+  var oneOf = scope.oneOf;
+  var registerWrapper = scope.registerWrapper;
+  var wrappers = scope.wrappers;
+
+  var OriginalElement = window.Element;
+
+  var matchesName = oneOf(OriginalElement.prototype, [
+    'matches',
+    'mozMatchesSelector',
+    'msMatchesSelector',
+    'webkitMatchesSelector',
+  ]);
+
+  var originalMatches = OriginalElement.prototype[matchesName];
+
+  function invalidateRendererBasedOnAttribute(element, name) {
+    // Only invalidate if parent node is a shadow host.
+    var p = element.parentNode;
+    if (!p || !p.shadowRoot)
+      return;
+
+    var renderer = scope.getRendererForHost(p);
+    if (renderer.dependsOnAttribute(name))
+      renderer.invalidate();
+  }
+
+  function Element(node) {
+    Node.call(this, node);
+  }
+  Element.prototype = Object.create(Node.prototype);
+  mixin(Element.prototype, {
+    createShadowRoot: function() {
+      var newShadowRoot = new wrappers.ShadowRoot(this);
+      this.impl.polymerShadowRoot_ = newShadowRoot;
+
+      var renderer = scope.getRendererForHost(this);
+      renderer.invalidate();
+
+      return newShadowRoot;
+    },
+
+    get shadowRoot() {
+      return this.impl.polymerShadowRoot_ || null;
+    },
+
+    setAttribute: function(name, value) {
+      this.impl.setAttribute(name, value);
+      invalidateRendererBasedOnAttribute(this, name);
+    },
+
+    removeAttribute: function(name) {
+      this.impl.removeAttribute(name);
+      invalidateRendererBasedOnAttribute(this, name);
+    },
+
+    matches: function(selector) {
+      return originalMatches.call(this.impl, selector);
+    }
+  });
+
+  Element.prototype[matchesName] = function(selector) {
+    return this.matches(selector);
+  };
+
+  if (OriginalElement.prototype.webkitCreateShadowRoot) {
+    Element.prototype.webkitCreateShadowRoot =
+        Element.prototype.createShadowRoot;
+  }
+
+  /**
+   * Useful for generating the accessor pair for a property that reflects an
+   * attribute.
+   */
+  function setterDirtiesAttribute(prototype, propertyName, opt_attrName) {
+    var attrName = opt_attrName || propertyName;
+    Object.defineProperty(prototype, propertyName, {
+      get: function() {
+        return this.impl[propertyName];
+      },
+      set: function(v) {
+        this.impl[propertyName] = v;
+        invalidateRendererBasedOnAttribute(this, attrName);
+      },
+      configurable: true,
+      enumerable: true
+    });
+  }
+
+  setterDirtiesAttribute(Element.prototype, 'id');
+  setterDirtiesAttribute(Element.prototype, 'className', 'class');
+
+  mixin(Element.prototype, ChildNodeInterface);
+  mixin(Element.prototype, GetElementsByInterface);
+  mixin(Element.prototype, ParentNodeInterface);
+  mixin(Element.prototype, SelectorsInterface);
+
+  registerWrapper(OriginalElement, Element);
+
+  // TODO(arv): Export setterDirtiesAttribute and apply it to more bindings
+  // that reflect attributes.
+  scope.matchesName = matchesName;
+  scope.wrappers.Element = Element;
+})(this.ShadowDOMPolyfill);
+
+// Copyright 2013 The Polymer Authors. All rights reserved.
+// Use of this source code is goverened by a BSD-style
+// license that can be found in the LICENSE file.
+
+(function(scope) {
+  'use strict';
+
+  var Element = scope.wrappers.Element;
+  var defineGetter = scope.defineGetter;
+  var mixin = scope.mixin;
+  var registerWrapper = scope.registerWrapper;
+  var unwrap = scope.unwrap;
+  var wrap = scope.wrap;
+
+  /////////////////////////////////////////////////////////////////////////////
+  // innerHTML and outerHTML
+
+  var escapeRegExp = /&|<|"/g;
+
+  function escapeReplace(c) {
+    switch (c) {
+      case '&':
+        return '&amp;';
+      case '<':
+        return '&lt;';
+      case '"':
+        return '&quot;'
+    }
+  }
+
+  function escape(s) {
+    return s.replace(escapeRegExp, escapeReplace);
+  }
+
+  // http://www.whatwg.org/specs/web-apps/current-work/#void-elements
+  var voidElements = {
+    'area': true,
+    'base': true,
+    'br': true,
+    'col': true,
+    'command': true,
+    'embed': true,
+    'hr': true,
+    'img': true,
+    'input': true,
+    'keygen': true,
+    'link': true,
+    'meta': true,
+    'param': true,
+    'source': true,
+    'track': true,
+    'wbr': true
+  };
+
+  function getOuterHTML(node) {
+    switch (node.nodeType) {
+      case Node.ELEMENT_NODE:
+        var tagName = node.tagName.toLowerCase();
+        var s = '<' + tagName;
+        var attrs = node.attributes;
+        for (var i = 0, attr; attr = attrs[i]; i++) {
+          s += ' ' + attr.name + '="' + escape(attr.value) + '"';
+        }
+        s += '>';
+        if (voidElements[tagName])
+          return s;
+
+        return s + getInnerHTML(node) + '</' + tagName + '>';
+
+      case Node.TEXT_NODE:
+        return escape(node.nodeValue);
+
+      case Node.COMMENT_NODE:
+        return '<!--' + escape(node.nodeValue) + '-->';
+      default:
+        console.error(node);
+        throw new Error('not implemented');
+    }
+  }
+
+  function getInnerHTML(node) {
+    var s = '';
+    for (var child = node.firstChild; child; child = child.nextSibling) {
+      s += getOuterHTML(child);
+    }
+    return s;
+  }
+
+  function setInnerHTML(node, value, opt_tagName) {
+    var tagName = opt_tagName || 'div';
+    node.textContent = '';
+    var tempElement = unwrap(node.ownerDocument.createElement(tagName));
+    tempElement.innerHTML = value;
+    var firstChild;
+    while (firstChild = tempElement.firstChild) {
+      node.appendChild(wrap(firstChild));
+    }
+  }
+
+  var OriginalHTMLElement = window.HTMLElement;
+
+  function HTMLElement(node) {
+    Element.call(this, node);
+  }
+  HTMLElement.prototype = Object.create(Element.prototype);
+  mixin(HTMLElement.prototype, {
+    get innerHTML() {
+      // TODO(arv): This should fallback to this.impl.innerHTML if there
+      // are no shadow trees below or above the context node.
+      return getInnerHTML(this);
+    },
+    set innerHTML(value) {
+      if (this.invalidateShadowRenderer())
+        setInnerHTML(this, value, this.tagName);
+      else
+        this.impl.innerHTML = value;
+    },
+
+    get outerHTML() {
+      // TODO(arv): This should fallback to HTMLElement_prototype.outerHTML if there
+      // are no shadow trees below or above the context node.
+      return getOuterHTML(this);
+    },
+    set outerHTML(value) {
+      var p = this.parentNode;
+      if (p) {
+        p.invalidateShadowRenderer();
+        this.impl.outerHTML = value;
+      }
+    }
+  });
+
+  function getter(name) {
+    return function() {
+      scope.renderAllPending();
+      return this.impl[name];
+    };
+  }
+
+  function getterRequiresRendering(name) {
+    defineGetter(HTMLElement, name, getter(name));
+  }
+
+  [
+    'clientHeight',
+    'clientLeft',
+    'clientTop',
+    'clientWidth',
+    'offsetHeight',
+    'offsetLeft',
+    'offsetTop',
+    'offsetWidth',
+    'scrollHeight',
+    'scrollWidth',
+  ].forEach(getterRequiresRendering);
+
+  function getterAndSetterRequiresRendering(name) {
+    Object.defineProperty(HTMLElement.prototype, name, {
+      get: getter(name),
+      set: function(v) {
+        scope.renderAllPending();
+        this.impl[name] = v;
+      },
+      configurable: true,
+      enumerable: true
+    });
+  }
+
+  [
+    'scrollLeft',
+    'scrollTop',
+  ].forEach(getterAndSetterRequiresRendering);
+
+  function methodRequiresRendering(name) {
+    Object.defineProperty(HTMLElement.prototype, name, {
+      value: function() {
+        scope.renderAllPending();
+        return this.impl[name].apply(this.impl, arguments);
+      },
+      configurable: true,
+      enumerable: true
+    });
+  }
+
+  [
+    'getBoundingClientRect',
+    'getClientRects',
+    'scrollIntoView'
+  ].forEach(methodRequiresRendering);
+
+  // HTMLElement is abstract so we use a subclass that has no members.
+  registerWrapper(OriginalHTMLElement, HTMLElement,
+                  document.createElement('b'));
+
+  scope.wrappers.HTMLElement = HTMLElement;
+
+  // TODO: Find a better way to share these two with WrapperShadowRoot.
+  scope.getInnerHTML = getInnerHTML;
+  scope.setInnerHTML = setInnerHTML
+})(this.ShadowDOMPolyfill);
+// Copyright 2013 The Polymer Authors. All rights reserved.
+// Use of this source code is goverened by a BSD-style
+// license that can be found in the LICENSE file.
+
+(function(scope) {
+  'use strict';
+
+  var HTMLElement = scope.wrappers.HTMLElement;
+  var mixin = scope.mixin;
+  var registerWrapper = scope.registerWrapper;
+  var wrap = scope.wrap;
+
+  var OriginalHTMLCanvasElement = window.HTMLCanvasElement;
+
+  function HTMLCanvasElement(node) {
+    HTMLElement.call(this, node);
+  }
+  HTMLCanvasElement.prototype = Object.create(HTMLElement.prototype);
+
+  mixin(HTMLCanvasElement.prototype, {
+    getContext: function() {
+      var context = this.impl.getContext.apply(this.impl, arguments);
+      return context && wrap(context);
+    }
+  });
+
+  registerWrapper(OriginalHTMLCanvasElement, HTMLCanvasElement,
+                  document.createElement('canvas'));
+
+  scope.wrappers.HTMLCanvasElement = HTMLCanvasElement;
+})(this.ShadowDOMPolyfill);
+
+// Copyright 2013 The Polymer Authors. All rights reserved.
+// Use of this source code is goverened by a BSD-style
+// license that can be found in the LICENSE file.
+
+(function(scope) {
+  'use strict';
+
+  var HTMLElement = scope.wrappers.HTMLElement;
+  var mixin = scope.mixin;
+  var registerWrapper = scope.registerWrapper;
+
+  var OriginalHTMLContentElement = window.HTMLContentElement;
+
+  function HTMLContentElement(node) {
+    HTMLElement.call(this, node);
+  }
+  HTMLContentElement.prototype = Object.create(HTMLElement.prototype);
+  mixin(HTMLContentElement.prototype, {
+    get select() {
+      return this.getAttribute('select');
+    },
+    set select(value) {
+      this.setAttribute('select', value);
+    },
+
+    setAttribute: function(n, v) {
+      HTMLElement.prototype.setAttribute.call(this, n, v);
+      if (String(n).toLowerCase() === 'select')
+        this.invalidateShadowRenderer(true);
+    }
+
+    // getDistributedNodes is added in ShadowRenderer
+
+    // TODO: attribute boolean resetStyleInheritance;
+  });
+
+  if (OriginalHTMLContentElement)
+    registerWrapper(OriginalHTMLContentElement, HTMLContentElement);
+
+  scope.wrappers.HTMLContentElement = HTMLContentElement;
+})(this.ShadowDOMPolyfill);
+// Copyright 2013 The Polymer Authors. All rights reserved.
+// Use of this source code is goverened by a BSD-style
+// license that can be found in the LICENSE file.
+
+(function(scope) {
+  'use strict';
+
+  var HTMLElement = scope.wrappers.HTMLElement;
+  var registerWrapper = scope.registerWrapper;
+  var unwrap = scope.unwrap;
+  var rewrap = scope.rewrap;
+
+  var OriginalHTMLImageElement = window.HTMLImageElement;
+
+  function HTMLImageElement(node) {
+    HTMLElement.call(this, node);
+  }
+  HTMLImageElement.prototype = Object.create(HTMLElement.prototype);
+
+  registerWrapper(OriginalHTMLImageElement, HTMLImageElement,
+                  document.createElement('img'));
+
+  function Image(width, height) {
+    if (!(this instanceof Image)) {
+      throw new TypeError(
+          'DOM object constructor cannot be called as a function.');
+    }
+
+    var node = unwrap(document.createElement('img'));
+    HTMLElement.call(this, node);
+    rewrap(node, this);
+
+    if (width !== undefined)
+      node.width = width;
+    if (height !== undefined)
+      node.height = height;
+  }
+
+  Image.prototype = HTMLImageElement.prototype;
+
+  scope.wrappers.HTMLImageElement = HTMLImageElement;
+  scope.wrappers.Image = Image;
+})(this.ShadowDOMPolyfill);
+
+// Copyright 2013 The Polymer Authors. All rights reserved.
+// Use of this source code is goverened by a BSD-style
+// license that can be found in the LICENSE file.
+
+(function(scope) {
+  'use strict';
+
+  var HTMLElement = scope.wrappers.HTMLElement;
+  var mixin = scope.mixin;
+  var registerWrapper = scope.registerWrapper;
+
+  var OriginalHTMLShadowElement = window.HTMLShadowElement;
+
+  function HTMLShadowElement(node) {
+    HTMLElement.call(this, node);
+  }
+  HTMLShadowElement.prototype = Object.create(HTMLElement.prototype);
+  mixin(HTMLShadowElement.prototype, {
+    // TODO: attribute boolean resetStyleInheritance;
+  });
+
+  if (OriginalHTMLShadowElement)
+    registerWrapper(OriginalHTMLShadowElement, HTMLShadowElement);
+
+  scope.wrappers.HTMLShadowElement = HTMLShadowElement;
+})(this.ShadowDOMPolyfill);
+
+// Copyright 2013 The Polymer Authors. All rights reserved.
+// Use of this source code is goverened by a BSD-style
+// license that can be found in the LICENSE file.
+
+(function(scope) {
+  'use strict';
+
+  var HTMLElement = scope.wrappers.HTMLElement;
+  var getInnerHTML = scope.getInnerHTML;
+  var mixin = scope.mixin;
+  var muteMutationEvents = scope.muteMutationEvents;
+  var registerWrapper = scope.registerWrapper;
+  var setInnerHTML = scope.setInnerHTML;
+  var unmuteMutationEvents = scope.unmuteMutationEvents;
+  var unwrap = scope.unwrap;
+  var wrap = scope.wrap;
+
+  var contentTable = new WeakMap();
+  var templateContentsOwnerTable = new WeakMap();
+
+  // http://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/templates/index.html#dfn-template-contents-owner
+  function getTemplateContentsOwner(doc) {
+    if (!doc.defaultView)
+      return doc;
+    var d = templateContentsOwnerTable.get(doc);
+    if (!d) {
+      // TODO(arv): This should either be a Document or HTMLDocument depending
+      // on doc.
+      d = doc.implementation.createHTMLDocument('');
+      while (d.lastChild) {
+        d.removeChild(d.lastChild);
+      }
+      templateContentsOwnerTable.set(doc, d);
+    }
+    return d;
+  }
+
+  function extractContent(templateElement) {
+    // templateElement is not a wrapper here.
+    var doc = getTemplateContentsOwner(templateElement.ownerDocument);
+    var df = unwrap(doc.createDocumentFragment());
+    var child;
+    muteMutationEvents();
+    while (child = templateElement.firstChild) {
+      df.appendChild(child);
+    }
+    unmuteMutationEvents();
+    return df;
+  }
+
+  var OriginalHTMLTemplateElement = window.HTMLTemplateElement;
+
+  function HTMLTemplateElement(node) {
+    HTMLElement.call(this, node);
+    if (!OriginalHTMLTemplateElement) {
+      var content = extractContent(node);
+      contentTable.set(this, wrap(content));
+    }
+  }
+  HTMLTemplateElement.prototype = Object.create(HTMLElement.prototype);
+
+  mixin(HTMLTemplateElement.prototype, {
+    get content() {
+      if (OriginalHTMLTemplateElement)
+        return wrap(this.impl.content);
+      return contentTable.get(this);
+    },
+
+    get innerHTML() {
+      return getInnerHTML(this.content);
+    },
+    set innerHTML(value) {
+      setInnerHTML(this.content, value);
+    }
+
+    // TODO(arv): cloneNode needs to clone content.
+
+  });
+
+  if (OriginalHTMLTemplateElement)
+    registerWrapper(OriginalHTMLTemplateElement, HTMLTemplateElement);
+
+  scope.wrappers.HTMLTemplateElement = HTMLTemplateElement;
+})(this.ShadowDOMPolyfill);
+// Copyright 2013 The Polymer Authors. All rights reserved.
+// Use of this source code is goverened by a BSD-style
+// license that can be found in the LICENSE file.
+
+(function(scope) {
+  'use strict';
+
+  var HTMLElement = scope.wrappers.HTMLElement;
+  var registerWrapper = scope.registerWrapper;
+
+  var OriginalHTMLMediaElement = window.HTMLMediaElement;
+
+  function HTMLMediaElement(node) {
+    HTMLElement.call(this, node);
+  }
+  HTMLMediaElement.prototype = Object.create(HTMLElement.prototype);
+
+  registerWrapper(OriginalHTMLMediaElement, HTMLMediaElement,
+                  document.createElement('audio'));
+
+  scope.wrappers.HTMLMediaElement = HTMLMediaElement;
+})(this.ShadowDOMPolyfill);
+
+// Copyright 2013 The Polymer Authors. All rights reserved.
+// Use of this source code is goverened by a BSD-style
+// license that can be found in the LICENSE file.
+
+(function(scope) {
+  'use strict';
+
+  var HTMLMediaElement = scope.wrappers.HTMLMediaElement;
+  var registerWrapper = scope.registerWrapper;
+  var unwrap = scope.unwrap;
+  var rewrap = scope.rewrap;
+
+  var OriginalHTMLAudioElement = window.HTMLAudioElement;
+
+  function HTMLAudioElement(node) {
+    HTMLMediaElement.call(this, node);
+  }
+  HTMLAudioElement.prototype = Object.create(HTMLMediaElement.prototype);
+
+  registerWrapper(OriginalHTMLAudioElement, HTMLAudioElement,
+                  document.createElement('audio'));
+
+  function Audio(src) {
+    if (!(this instanceof Audio)) {
+      throw new TypeError(
+          'DOM object constructor cannot be called as a function.');
+    }
+
+    var node = unwrap(document.createElement('audio'));
+    HTMLMediaElement.call(this, node);
+    rewrap(node, this);
+
+    node.setAttribute('preload', 'auto');
+    if (src !== undefined)
+      node.setAttribute('src', src);
+  }
+
+  Audio.prototype = HTMLAudioElement.prototype;
+
+  scope.wrappers.HTMLAudioElement = HTMLAudioElement;
+  scope.wrappers.Audio = Audio;
+})(this.ShadowDOMPolyfill);
+
+// Copyright 2013 The Polymer Authors. All rights reserved.
+// Use of this source code is goverened by a BSD-style
+// license that can be found in the LICENSE file.
+
+(function(scope) {
+  'use strict';
+
+  var HTMLElement = scope.wrappers.HTMLElement;
+  var mixin = scope.mixin;
+  var registerWrapper = scope.registerWrapper;
+  var rewrap = scope.rewrap;
+  var unwrap = scope.unwrap;
+  var wrap = scope.wrap;
+
+  var OriginalHTMLOptionElement = window.HTMLOptionElement;
+
+  function trimText(s) {
+    return s.replace(/\s+/g, ' ').trim();
+  }
+
+  function HTMLOptionElement(node) {
+    HTMLElement.call(this, node);
+  }
+  HTMLOptionElement.prototype = Object.create(HTMLElement.prototype);
+  mixin(HTMLOptionElement.prototype, {
+    get text() {
+      return trimText(this.textContent);
+    },
+    set text(value) {
+      this.textContent = trimText(String(value));
+    },
+    get form() {
+      return wrap(unwrap(this).form);
+    }
+  });
+
+  registerWrapper(OriginalHTMLOptionElement, HTMLOptionElement,
+                  document.createElement('option'));
+
+  function Option(text, value, defaultSelected, selected) {
+    if (!(this instanceof Option)) {
+      throw new TypeError(
+          'DOM object constructor cannot be called as a function.');
+    }
+
+    var node = unwrap(document.createElement('option'));
+    HTMLElement.call(this, node);
+    rewrap(node, this);
+
+    if (text !== undefined)
+      node.text = text;
+    if (value !== undefined)
+      node.setAttribute('value', value);
+    if (defaultSelected === true)
+      node.setAttribute('selected', '');
+    node.selected = selected === true;
+  }
+
+  Option.prototype = HTMLOptionElement.prototype;
+
+  scope.wrappers.HTMLOptionElement = HTMLOptionElement;
+  scope.wrappers.Option = Option;
+})(this.ShadowDOMPolyfill);
+
+// Copyright 2013 The Polymer Authors. All rights reserved.
+// Use of this source code is goverened by a BSD-style
+// license that can be found in the LICENSE file.
+
+(function(scope) {
+  'use strict';
+
+  var HTMLContentElement = scope.wrappers.HTMLContentElement;
+  var HTMLElement = scope.wrappers.HTMLElement;
+  var HTMLShadowElement = scope.wrappers.HTMLShadowElement;
+  var HTMLTemplateElement = scope.wrappers.HTMLTemplateElement;
+  var mixin = scope.mixin;
+  var registerWrapper = scope.registerWrapper;
+
+  var OriginalHTMLUnknownElement = window.HTMLUnknownElement;
+
+  function HTMLUnknownElement(node) {
+    switch (node.localName) {
+      case 'content':
+        return new HTMLContentElement(node);
+      case 'shadow':
+        return new HTMLShadowElement(node);
+      case 'template':
+        return new HTMLTemplateElement(node);
+    }
+    HTMLElement.call(this, node);
+  }
+  HTMLUnknownElement.prototype = Object.create(HTMLElement.prototype);
+  registerWrapper(OriginalHTMLUnknownElement, HTMLUnknownElement);
+  scope.wrappers.HTMLUnknownElement = HTMLUnknownElement;
+})(this.ShadowDOMPolyfill);
+// Copyright 2013 The Polymer Authors. All rights reserved.
+// Use of this source code is goverened by a BSD-style
+// license that can be found in the LICENSE file.
+
+(function(scope) {
+  'use strict';
+
+  var mixin = scope.mixin;
+  var registerWrapper = scope.registerWrapper;
+  var unwrap = scope.unwrap;
+  var unwrapIfNeeded = scope.unwrapIfNeeded;
+  var wrap = scope.wrap;
+
+  var OriginalCanvasRenderingContext2D = window.CanvasRenderingContext2D;
+
+  function CanvasRenderingContext2D(impl) {
+    this.impl = impl;
+  }
+
+  mixin(CanvasRenderingContext2D.prototype, {
+    get canvas() {
+      return wrap(this.impl.canvas);
+    },
+
+    drawImage: function() {
+      arguments[0] = unwrapIfNeeded(arguments[0]);
+      this.impl.drawImage.apply(this.impl, arguments);
+    },
+
+    createPattern: function() {
+      arguments[0] = unwrap(arguments[0]);
+      return this.impl.createPattern.apply(this.impl, arguments);
+    }
+  });
+
+  registerWrapper(OriginalCanvasRenderingContext2D, CanvasRenderingContext2D);
+
+  scope.wrappers.CanvasRenderingContext2D = CanvasRenderingContext2D;
+})(this.ShadowDOMPolyfill);
+
+// Copyright 2013 The Polymer Authors. All rights reserved.
+// Use of this source code is goverened by a BSD-style
+// license that can be found in the LICENSE file.
+
+(function(scope) {
+  'use strict';
+
+  var mixin = scope.mixin;
+  var registerWrapper = scope.registerWrapper;
+  var unwrapIfNeeded = scope.unwrapIfNeeded;
+  var wrap = scope.wrap;
+
+  var OriginalWebGLRenderingContext = window.WebGLRenderingContext;
+
+  // IE10 does not have WebGL.
+  if (!OriginalWebGLRenderingContext)
+    return;
+
+  function WebGLRenderingContext(impl) {
+    this.impl = impl;
+  }
+
+  mixin(WebGLRenderingContext.prototype, {
+    get canvas() {
+      return wrap(this.impl.canvas);
+    },
+
+    texImage2D: function() {
+      arguments[5] = unwrapIfNeeded(arguments[5]);
+      this.impl.texImage2D.apply(this.impl, arguments);
+    },
+
+    texSubImage2D: function() {
+      arguments[6] = unwrapIfNeeded(arguments[6]);
+      this.impl.texSubImage2D.apply(this.impl, arguments);
+    }
+  });
+
+  registerWrapper(OriginalWebGLRenderingContext, WebGLRenderingContext);
+
+  scope.wrappers.WebGLRenderingContext = WebGLRenderingContext;
+})(this.ShadowDOMPolyfill);
+
+// Copyright 2013 The Polymer Authors. All rights reserved.
+// Use of this source code is goverened by a BSD-style
+// license that can be found in the LICENSE file.
+
+(function(scope) {
+  'use strict';
+
+  var GetElementsByInterface = scope.GetElementsByInterface;
+  var ParentNodeInterface = scope.ParentNodeInterface;
+  var SelectorsInterface = scope.SelectorsInterface;
+  var mixin = scope.mixin;
+  var registerObject = scope.registerObject;
+
+  var DocumentFragment = registerObject(document.createDocumentFragment());
+  mixin(DocumentFragment.prototype, ParentNodeInterface);
+  mixin(DocumentFragment.prototype, SelectorsInterface);
+  mixin(DocumentFragment.prototype, GetElementsByInterface);
+
+  var Text = registerObject(document.createTextNode(''));
+  var Comment = registerObject(document.createComment(''));
+
+  scope.wrappers.Comment = Comment;
+  scope.wrappers.DocumentFragment = DocumentFragment;
+  scope.wrappers.Text = Text;
+
+})(this.ShadowDOMPolyfill);
+
+// Copyright 2013 The Polymer Authors. All rights reserved.
+// Use of this source code is goverened by a BSD-style
+// license that can be found in the LICENSE file.
+
+(function(scope) {
+  'use strict';
+
+  var DocumentFragment = scope.wrappers.DocumentFragment;
+  var elementFromPoint = scope.elementFromPoint;
+  var getInnerHTML = scope.getInnerHTML;
+  var mixin = scope.mixin;
+  var rewrap = scope.rewrap;
+  var setInnerHTML = scope.setInnerHTML;
+  var unwrap = scope.unwrap;
+
+  var shadowHostTable = new WeakMap();
+  var nextOlderShadowTreeTable = new WeakMap();
+
+  function ShadowRoot(hostWrapper) {
+    var node = unwrap(hostWrapper.impl.ownerDocument.createDocumentFragment());
+    DocumentFragment.call(this, node);
+
+    // createDocumentFragment associates the node with a wrapper
+    // DocumentFragment instance. Override that.
+    rewrap(node, this);
+
+    var oldShadowRoot = hostWrapper.shadowRoot;
+    nextOlderShadowTreeTable.set(this, oldShadowRoot);
+
+    shadowHostTable.set(this, hostWrapper);
+  }
+  ShadowRoot.prototype = Object.create(DocumentFragment.prototype);
+  mixin(ShadowRoot.prototype, {
+    get innerHTML() {
+      return getInnerHTML(this);
+    },
+    set innerHTML(value) {
+      setInnerHTML(this, value);
+      this.invalidateShadowRenderer();
+    },
+
+    get olderShadowRoot() {
+      return nextOlderShadowTreeTable.get(this) || null;
+    },
+
+    get host() {
+      return shadowHostTable.get(this) || null;
+    },
+
+    invalidateShadowRenderer: function() {
+      return shadowHostTable.get(this).invalidateShadowRenderer();
+    },
+
+    elementFromPoint: function(x, y) {
+      return elementFromPoint(this, this.ownerDocument, x, y);
+    },
+
+    getElementById: function(id) {
+      return this.querySelector('#' + id);
+    }
+  });
+
+  scope.wrappers.ShadowRoot = ShadowRoot;
+})(this.ShadowDOMPolyfill);
+// Copyright 2013 The Polymer Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+(function(scope) {
+  'use strict';
+
+  var Element = scope.wrappers.Element;
+  var HTMLContentElement = scope.wrappers.HTMLContentElement;
+  var HTMLShadowElement = scope.wrappers.HTMLShadowElement;
+  var Node = scope.wrappers.Node;
+  var ShadowRoot = scope.wrappers.ShadowRoot;
+  var assert = scope.assert;
+  var mixin = scope.mixin;
+  var muteMutationEvents = scope.muteMutationEvents;
+  var oneOf = scope.oneOf;
+  var unmuteMutationEvents = scope.unmuteMutationEvents;
+  var unwrap = scope.unwrap;
+  var wrap = scope.wrap;
+
+  /**
+   * Updates the fields of a wrapper to a snapshot of the logical DOM as needed.
+   * Up means parentNode
+   * Sideways means previous and next sibling.
+   * @param {!Node} wrapper
+   */
+  function updateWrapperUpAndSideways(wrapper) {
+    wrapper.previousSibling_ = wrapper.previousSibling;
+    wrapper.nextSibling_ = wrapper.nextSibling;
+    wrapper.parentNode_ = wrapper.parentNode;
+  }
+
+  /**
+   * Updates the fields of a wrapper to a snapshot of the logical DOM as needed.
+   * Down means first and last child
+   * @param {!Node} wrapper
+   */
+  function updateWrapperDown(wrapper) {
+    wrapper.firstChild_ = wrapper.firstChild;
+    wrapper.lastChild_ = wrapper.lastChild;
+  }
+
+  function updateAllChildNodes(parentNodeWrapper) {
+    assert(parentNodeWrapper instanceof Node);
+    for (var childWrapper = parentNodeWrapper.firstChild;
+         childWrapper;
+         childWrapper = childWrapper.nextSibling) {
+      updateWrapperUpAndSideways(childWrapper);
+    }
+    updateWrapperDown(parentNodeWrapper);
+  }
+
+  function insertBefore(parentNodeWrapper, newChildWrapper, refChildWrapper) {
+    var parentNode = unwrap(parentNodeWrapper);
+    var newChild = unwrap(newChildWrapper);
+    var refChild = refChildWrapper ? unwrap(refChildWrapper) : null;
+
+    remove(newChildWrapper);
+    updateWrapperUpAndSideways(newChildWrapper);
+
+    if (!refChildWrapper) {
+      parentNodeWrapper.lastChild_ = parentNodeWrapper.lastChild;
+      if (parentNodeWrapper.lastChild === parentNodeWrapper.firstChild)
+        parentNodeWrapper.firstChild_ = parentNodeWrapper.firstChild;
+
+      var lastChildWrapper = wrap(parentNode.lastChild);
+      if (lastChildWrapper)
+        lastChildWrapper.nextSibling_ = lastChildWrapper.nextSibling;
+    } else {
+      if (parentNodeWrapper.firstChild === refChildWrapper)
+        parentNodeWrapper.firstChild_ = refChildWrapper;
+
+      refChildWrapper.previousSibling_ = refChildWrapper.previousSibling;
+    }
+
+    parentNode.insertBefore(newChild, refChild);
+  }
+
+  function remove(nodeWrapper) {
+    var node = unwrap(nodeWrapper)
+    var parentNode = node.parentNode;
+    if (!parentNode)
+      return;
+
+    var parentNodeWrapper = wrap(parentNode);
+    updateWrapperUpAndSideways(nodeWrapper);
+
+    if (nodeWrapper.previousSibling)
+      nodeWrapper.previousSibling.nextSibling_ = nodeWrapper;
+    if (nodeWrapper.nextSibling)
+      nodeWrapper.nextSibling.previousSibling_ = nodeWrapper;
+
+    if (parentNodeWrapper.lastChild === nodeWrapper)
+      parentNodeWrapper.lastChild_ = nodeWrapper;
+    if (parentNodeWrapper.firstChild === nodeWrapper)
+      parentNodeWrapper.firstChild_ = nodeWrapper;
+
+    parentNode.removeChild(node);
+  }
+
+  var distributedChildNodesTable = new WeakMap();
+  var eventParentsTable = new WeakMap();
+  var insertionParentTable = new WeakMap();
+  var rendererForHostTable = new WeakMap();
+
+  function distributeChildToInsertionPoint(child, insertionPoint) {
+    getDistributedChildNodes(insertionPoint).push(child);
+    assignToInsertionPoint(child, insertionPoint);
+
+    var eventParents = eventParentsTable.get(child);
+    if (!eventParents)
+      eventParentsTable.set(child, eventParents = []);
+    eventParents.push(insertionPoint);
+  }
+
+  function resetDistributedChildNodes(insertionPoint) {
+    distributedChildNodesTable.set(insertionPoint, []);
+  }
+
+  function getDistributedChildNodes(insertionPoint) {
+    return distributedChildNodesTable.get(insertionPoint);
+  }
+
+  function getChildNodesSnapshot(node) {
+    var result = [], i = 0;
+    for (var child = node.firstChild; child; child = child.nextSibling) {
+      result[i++] = child;
+    }
+    return result;
+  }
+
+  /**
+   * Visits all nodes in the tree that fulfils the |predicate|. If the |visitor|
+   * function returns |false| the traversal is aborted.
+   * @param {!Node} tree
+   * @param {function(!Node) : boolean} predicate
+   * @param {function(!Node) : *} visitor
+   */
+  function visit(tree, predicate, visitor) {
+    // This operates on logical DOM.
+    for (var node = tree.firstChild; node; node = node.nextSibling) {
+      if (predicate(node)) {
+        if (visitor(node) === false)
+          return;
+      } else {
+        visit(node, predicate, visitor);
+      }
+    }
+  }
+
+  // Matching Insertion Points
+  // http://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html#matching-insertion-points
+
+  // TODO(arv): Verify this... I don't remember why I picked this regexp.
+  var selectorMatchRegExp = /^[*.:#[a-zA-Z_|]/;
+
+  var allowedPseudoRegExp = new RegExp('^:(' + [
+    'link',
+    'visited',
+    'target',
+    'enabled',
+    'disabled',
+    'checked',
+    'indeterminate',
+    'nth-child',
+    'nth-last-child',
+    'nth-of-type',
+    'nth-last-of-type',
+    'first-child',
+    'last-child',
+    'first-of-type',
+    'last-of-type',
+    'only-of-type',
+  ].join('|') + ')');
+
+
+  /**
+   * @param {Element} node
+   * @oaram {Element} point The insertion point element.
+   * @return {boolean} Whether the node matches the insertion point.
+   */
+  function matchesCriteria(node, point) {
+    var select = point.getAttribute('select');
+    if (!select)
+      return true;
+
+    // Here we know the select attribute is a non empty string.
+    select = select.trim();
+    if (!select)
+      return true;
+
+    if (!(node instanceof Element))
+      return false;
+
+    // TODO(arv): This does not seem right. Need to check for a simple selector.
+    if (!selectorMatchRegExp.test(select))
+      return false;
+
+    if (select[0] === ':' && !allowedPseudoRegExp.test(select))
+      return false;
+
+    try {
+      return node.matches(select);
+    } catch (ex) {
+      // Invalid selector.
+      return false;
+    }
+  }
+
+  var request = oneOf(window, [
+    'requestAnimationFrame',
+    'mozRequestAnimationFrame',
+    'webkitRequestAnimationFrame',
+    'setTimeout'
+  ]);
+
+  var pendingDirtyRenderers = [];
+  var renderTimer;
+
+  function renderAllPending() {
+    for (var i = 0; i < pendingDirtyRenderers.length; i++) {
+      pendingDirtyRenderers[i].render();
+    }
+    pendingDirtyRenderers = [];
+  }
+
+  function handleRequestAnimationFrame() {
+    renderTimer = null;
+    renderAllPending();
+  }
+
+  /**
+   * Returns existing shadow renderer for a host or creates it if it is needed.
+   * @params {!Element} host
+   * @return {!ShadowRenderer}
+   */
+  function getRendererForHost(host) {
+    var renderer = rendererForHostTable.get(host);
+    if (!renderer) {
+      renderer = new ShadowRenderer(host);
+      rendererForHostTable.set(host, renderer);
+    }
+    return renderer;
+  }
+
+  function getShadowRootAncestor(node) {
+    for (; node; node = node.parentNode) {
+      if (node instanceof ShadowRoot)
+        return node;
+    }
+    return null;
+  }
+
+  function getRendererForShadowRoot(shadowRoot) {
+    return getRendererForHost(shadowRoot.host);
+  }
+
+  var spliceDiff = new ArraySplice();
+  spliceDiff.equals = function(renderNode, rawNode) {
+    return unwrap(renderNode.node) === rawNode;
+  };
+
+  /**
+   * RenderNode is used as an in memory "render tree". When we render the
+   * composed tree we create a tree of RenderNodes, then we diff this against
+   * the real DOM tree and make minimal changes as needed.
+   */
+  function RenderNode(node) {
+    this.skip = false;
+    this.node = node;
+    this.childNodes = [];
+  }
+
+  RenderNode.prototype = {
+    append: function(node) {
+      var rv = new RenderNode(node);
+      this.childNodes.push(rv);
+      return rv;
+    },
+
+    sync: function(opt_added) {
+      if (this.skip)
+        return;
+
+      var nodeWrapper = this.node;
+      // plain array of RenderNodes
+      var newChildren = this.childNodes;
+      // plain array of real nodes.
+      var oldChildren = getChildNodesSnapshot(unwrap(nodeWrapper));
+      var added = opt_added || new WeakMap();
+
+      var splices = spliceDiff.calculateSplices(newChildren, oldChildren);
+
+      var newIndex = 0, oldIndex = 0;
+      var lastIndex = 0;
+      for (var i = 0; i < splices.length; i++) {
+        var splice = splices[i];
+        for (; lastIndex < splice.index; lastIndex++) {
+          oldIndex++;
+          newChildren[newIndex++].sync(added);
+        }
+
+        var removedCount = splice.removed.length;
+        for (var j = 0; j < removedCount; j++) {
+          var wrapper = wrap(oldChildren[oldIndex++]);
+          if (!added.get(wrapper))
+            remove(wrapper);
+        }
+
+        var addedCount = splice.addedCount;
+        var refNode = oldChildren[oldIndex] && wrap(oldChildren[oldIndex]);
+        for (var j = 0; j < addedCount; j++) {
+          var newChildRenderNode = newChildren[newIndex++];
+          var newChildWrapper = newChildRenderNode.node;
+          insertBefore(nodeWrapper, newChildWrapper, refNode);
+
+          // Keep track of added so that we do not remove the node after it
+          // has been added.
+          added.set(newChildWrapper, true);
+
+          newChildRenderNode.sync(added);
+        }
+
+        lastIndex += addedCount;
+      }
+
+      for (var i = lastIndex; i < newChildren.length; i++) {
+        newChildren[i].sync(added);
+      }
+    }
+  };
+
+  function ShadowRenderer(host) {
+    this.host = host;
+    this.dirty = false;
+    this.invalidateAttributes();
+    this.associateNode(host);
+  }
+
+  ShadowRenderer.prototype = {
+
+    // http://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html#rendering-shadow-trees
+    render: function(opt_renderNode) {
+      if (!this.dirty)
+        return;
+
+      this.invalidateAttributes();
+      this.treeComposition();
+
+      var host = this.host;
+      var shadowRoot = host.shadowRoot;
+
+      this.associateNode(host);
+      var topMostRenderer = !renderNode;
+      var renderNode = opt_renderNode || new RenderNode(host);
+
+      for (var node = shadowRoot.firstChild; node; node = node.nextSibling) {
+        this.renderNode(shadowRoot, renderNode, node, false);
+      }
+
+      if (topMostRenderer) {
+        //muteMutationEvents();
+        renderNode.sync();
+        //unmuteMutationEvents();
+      }
+
+      this.dirty = false;
+    },
+
+    invalidate: function() {
+      if (!this.dirty) {
+        this.dirty = true;
+        pendingDirtyRenderers.push(this);
+        if (renderTimer)
+          return;
+        renderTimer = window[request](handleRequestAnimationFrame, 0);
+      }
+    },
+
+    renderNode: function(shadowRoot, renderNode, node, isNested) {
+      if (isShadowHost(node)) {
+        renderNode = renderNode.append(node);
+        var renderer = getRendererForHost(node);
+        renderer.dirty = true;  // Need to rerender due to reprojection.
+        renderer.render(renderNode);
+      } else if (isInsertionPoint(node)) {
+        this.renderInsertionPoint(shadowRoot, renderNode, node, isNested);
+      } else if (isShadowInsertionPoint(node)) {
+        this.renderShadowInsertionPoint(shadowRoot, renderNode, node);
+      } else {
+        this.renderAsAnyDomTree(shadowRoot, renderNode, node, isNested);
+      }
+    },
+
+    renderAsAnyDomTree: function(shadowRoot, renderNode, node, isNested) {
+      renderNode = renderNode.append(node);
+
+      if (isShadowHost(node)) {
+        var renderer = getRendererForHost(node);
+        renderNode.skip = !renderer.dirty;
+        renderer.render(renderNode);
+      } else {
+        for (var child = node.firstChild; child; child = child.nextSibling) {
+          this.renderNode(shadowRoot, renderNode, child, isNested);
+        }
+      }
+    },
+
+    renderInsertionPoint: function(shadowRoot, renderNode, insertionPoint,
+                                   isNested) {
+      var distributedChildNodes = getDistributedChildNodes(insertionPoint);
+      if (distributedChildNodes.length) {
+        this.associateNode(insertionPoint);
+
+        for (var i = 0; i < distributedChildNodes.length; i++) {
+          var child = distributedChildNodes[i];
+          if (isInsertionPoint(child) && isNested)
+            this.renderInsertionPoint(shadowRoot, renderNode, child, isNested);
+          else
+            this.renderAsAnyDomTree(shadowRoot, renderNode, child, isNested);
+        }
+      } else {
+        this.renderFallbackContent(shadowRoot, renderNode, insertionPoint);
+      }
+      this.associateNode(insertionPoint.parentNode);
+    },
+
+    renderShadowInsertionPoint: function(shadowRoot, renderNode,
+                                         shadowInsertionPoint) {
+      var nextOlderTree = shadowRoot.olderShadowRoot;
+      if (nextOlderTree) {
+        assignToInsertionPoint(nextOlderTree, shadowInsertionPoint);
+        this.associateNode(shadowInsertionPoint.parentNode);
+        for (var node = nextOlderTree.firstChild;
+             node;
+             node = node.nextSibling) {
+          this.renderNode(nextOlderTree, renderNode, node, true);
+        }
+      } else {
+        this.renderFallbackContent(shadowRoot, renderNode,
+                                   shadowInsertionPoint);
+      }
+    },
+
+    renderFallbackContent: function(shadowRoot, renderNode, fallbackHost) {
+      this.associateNode(fallbackHost);
+      this.associateNode(fallbackHost.parentNode);
+      for (var node = fallbackHost.firstChild; node; node = node.nextSibling) {
+        this.renderAsAnyDomTree(shadowRoot, renderNode, node, false);
+      }
+    },
+
+    /**
+     * Invalidates the attributes used to keep track of which attributes may
+     * cause the renderer to be invalidated.
+     */
+    invalidateAttributes: function() {
+      this.attributes = Object.create(null);
+    },
+
+    /**
+     * Parses the selector and makes this renderer dependent on the attribute
+     * being used in the selector.
+     * @param {string} selector
+     */
+    updateDependentAttributes: function(selector) {
+      if (!selector)
+        return;
+
+      var attributes = this.attributes;
+
+      // .class
+      if (/\.\w+/.test(selector))
+        attributes['class'] = true;
+
+      // #id
+      if (/#\w+/.test(selector))
+        attributes['id'] = true;
+
+      selector.replace(/\[\s*([^\s=\|~\]]+)/g, function(_, name) {
+        attributes[name] = true;
+      });
+
+      // Pseudo selectors have been removed from the spec.
+    },
+
+    dependsOnAttribute: function(name) {
+      return this.attributes[name];
+    },
+
+    // http://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html#dfn-distribution-algorithm
+    distribute: function(tree, pool) {
+      var self = this;
+
+      visit(tree, isActiveInsertionPoint,
+          function(insertionPoint) {
+            resetDistributedChildNodes(insertionPoint);
+            self.updateDependentAttributes(
+                insertionPoint.getAttribute('select'));
+
+            for (var i = 0; i < pool.length; i++) {  // 1.2
+              var node = pool[i];  // 1.2.1
+              if (node === undefined)  // removed
+                continue;
+              if (matchesCriteria(node, insertionPoint)) {  // 1.2.2
+                distributeChildToInsertionPoint(node, insertionPoint);  // 1.2.2.1
+                pool[i] = undefined;  // 1.2.2.2
+              }
+            }
+          });
+    },
+
+    // http://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html#dfn-tree-composition
+    treeComposition: function () {
+      var shadowHost = this.host;
+      var tree = shadowHost.shadowRoot;  // 1.
+      var pool = [];  // 2.
+
+      for (var child = shadowHost.firstChild;
+           child;
+           child = child.nextSibling) {  // 3.
+        if (isInsertionPoint(child)) {  // 3.2.
+          var reprojected = getDistributedChildNodes(child);  // 3.2.1.
+          // if reprojected is undef... reset it?
+          if (!reprojected || !reprojected.length)  // 3.2.2.
+            reprojected = getChildNodesSnapshot(child);
+          pool.push.apply(pool, reprojected);  // 3.2.3.
+        } else {
+          pool.push(child); // 3.3.
+        }
+      }
+
+      var shadowInsertionPoint, point;
+      while (tree) {  // 4.
+        // 4.1.
+        shadowInsertionPoint = undefined;  // Reset every iteration.
+        visit(tree, isActiveShadowInsertionPoint, function(point) {
+          shadowInsertionPoint = point;
+          return false;
+        });
+        point = shadowInsertionPoint;
+
+        this.distribute(tree, pool);  // 4.2.
+        if (point) {  // 4.3.
+          var nextOlderTree = tree.olderShadowRoot;  // 4.3.1.
+          if (!nextOlderTree) {
+            break;  // 4.3.1.1.
+          } else {
+            tree = nextOlderTree;  // 4.3.2.2.
+            assignToInsertionPoint(tree, point);  // 4.3.2.2.
+            continue;  // 4.3.2.3.
+          }
+        } else {
+          break;  // 4.4.
+        }
+      }
+    },
+
+    associateNode: function(node) {
+      node.impl.polymerShadowRenderer_ = this;
+    }
+  };
+
+  function isInsertionPoint(node) {
+    // Should this include <shadow>?
+    return node instanceof HTMLContentElement;
+  }
+
+  function isActiveInsertionPoint(node) {
+    // <content> inside another <content> or <shadow> is considered inactive.
+    return node instanceof HTMLContentElement;
+  }
+
+  function isShadowInsertionPoint(node) {
+    return node instanceof HTMLShadowElement;
+  }
+
+  function isActiveShadowInsertionPoint(node) {
+    // <shadow> inside another <content> or <shadow> is considered inactive.
+    return node instanceof HTMLShadowElement;
+  }
+
+  function isShadowHost(shadowHost) {
+    return shadowHost.shadowRoot;
+  }
+
+  function getShadowTrees(host) {
+    var trees = [];
+
+    for (var tree = host.shadowRoot; tree; tree = tree.olderShadowRoot) {
+      trees.push(tree);
+    }
+    return trees;
+  }
+
+  function assignToInsertionPoint(tree, point) {
+    insertionParentTable.set(tree, point);
+  }
+
+  // http://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html#rendering-shadow-trees
+  function render(host) {
+    new ShadowRenderer(host).render();
+  };
+
+  // Need to rerender shadow host when:
+  //
+  // - a direct child to the ShadowRoot is added or removed
+  // - a direct child to the host is added or removed
+  // - a new shadow root is created
+  // - a direct child to a content/shadow element is added or removed
+  // - a sibling to a content/shadow element is added or removed
+  // - content[select] is changed
+  // - an attribute in a direct child to a host is modified
+
+  /**
+   * This gets called when a node was added or removed to it.
+   */
+  Node.prototype.invalidateShadowRenderer = function(force) {
+    var renderer = this.impl.polymerShadowRenderer_;
+    if (renderer) {
+      renderer.invalidate();
+      return true;
+    }
+
+    return false;
+  };
+
+  HTMLContentElement.prototype.getDistributedNodes = function() {
+    // TODO(arv): We should only rerender the dirty ancestor renderers (from
+    // the root and down).
+    renderAllPending();
+    return getDistributedChildNodes(this);
+  };
+
+  HTMLShadowElement.prototype.nodeWasAdded_ =
+  HTMLContentElement.prototype.nodeWasAdded_ = function() {
+    // Invalidate old renderer if any.
+    this.invalidateShadowRenderer();
+
+    var shadowRoot = getShadowRootAncestor(this);
+    var renderer;
+    if (shadowRoot)
+      renderer = getRendererForShadowRoot(shadowRoot);
+    this.impl.polymerShadowRenderer_ = renderer;
+    if (renderer)
+      renderer.invalidate();
+  };
+
+  scope.eventParentsTable = eventParentsTable;
+  scope.getRendererForHost = getRendererForHost;
+  scope.getShadowTrees = getShadowTrees;
+  scope.insertionParentTable = insertionParentTable;
+  scope.renderAllPending = renderAllPending;
+
+  // Exposed for testing
+  scope.visual = {
+    insertBefore: insertBefore,
+    remove: remove,
+  };
+
+})(this.ShadowDOMPolyfill);
+// Copyright 2013 The Polymer Authors. All rights reserved.
+// Use of this source code is goverened by a BSD-style
+// license that can be found in the LICENSE file.
+
+(function(scope) {
+  'use strict';
+
+  var HTMLElement = scope.wrappers.HTMLElement;
+  var assert = scope.assert;
+  var mixin = scope.mixin;
+  var registerWrapper = scope.registerWrapper;
+  var unwrap = scope.unwrap;
+  var wrap = scope.wrap;
+
+  var elementsWithFormProperty = [
+    'HTMLButtonElement',
+    'HTMLFieldSetElement',
+    'HTMLInputElement',
+    'HTMLKeygenElement',
+    'HTMLLabelElement',
+    'HTMLLegendElement',
+    'HTMLObjectElement',
+    // HTMLOptionElement is handled in HTMLOptionElement.js
+    'HTMLOutputElement',
+    'HTMLSelectElement',
+    'HTMLTextAreaElement',
+  ];
+
+  function createWrapperConstructor(name) {
+    if (!window[name])
+      return;
+
+    // Ensure we are not overriding an already existing constructor.
+    assert(!scope.wrappers[name]);
+
+    var GeneratedWrapper = function(node) {
+      // At this point all of them extend HTMLElement.
+      HTMLElement.call(this, node);
+    }
+    GeneratedWrapper.prototype = Object.create(HTMLElement.prototype);
+    mixin(GeneratedWrapper.prototype, {
+      get form() {
+        return wrap(unwrap(this).form);
+      },
+    });
+
+    registerWrapper(window[name], GeneratedWrapper,
+        document.createElement(name.slice(4, -7)));
+    scope.wrappers[name] = GeneratedWrapper;
+  }
+
+  elementsWithFormProperty.forEach(createWrapperConstructor);
+
+})(this.ShadowDOMPolyfill);
+
+// Copyright 2013 The Polymer Authors. All rights reserved.
+// Use of this source code is goverened by a BSD-style
+// license that can be found in the LICENSE file.
+
+(function(scope) {
+  'use strict';
+
+  var GetElementsByInterface = scope.GetElementsByInterface;
+  var Node = scope.wrappers.Node;
+  var ParentNodeInterface = scope.ParentNodeInterface;
+  var SelectorsInterface = scope.SelectorsInterface;
+  var ShadowRoot = scope.wrappers.ShadowRoot;
+  var defineWrapGetter = scope.defineWrapGetter;
+  var elementFromPoint = scope.elementFromPoint;
+  var forwardMethodsToWrapper = scope.forwardMethodsToWrapper;
+  var matchesName = scope.matchesName;
+  var mixin = scope.mixin;
+  var registerWrapper = scope.registerWrapper;
+  var unwrap = scope.unwrap;
+  var wrap = scope.wrap;
+  var wrapEventTargetMethods = scope.wrapEventTargetMethods;
+  var wrapNodeList = scope.wrapNodeList;
+
+  var implementationTable = new WeakMap();
+
+  function Document(node) {
+    Node.call(this, node);
+  }
+  Document.prototype = Object.create(Node.prototype);
+
+  defineWrapGetter(Document, 'documentElement');
+
+  // Conceptually both body and head can be in a shadow but suporting that seems
+  // overkill at this point.
+  defineWrapGetter(Document, 'body');
+  defineWrapGetter(Document, 'head');
+
+  // document cannot be overridden so we override a bunch of its methods
+  // directly on the instance.
+
+  function wrapMethod(name) {
+    var original = document[name];
+    Document.prototype[name] = function() {
+      return wrap(original.apply(this.impl, arguments));
+    };
+  }
+
+  [
+    'createComment',
+    'createDocumentFragment',
+    'createElement',
+    'createElementNS',
+    'createEvent',
+    'createEventNS',
+    'createRange',
+    'createTextNode',
+    'getElementById',
+  ].forEach(wrapMethod);
+
+  var originalAdoptNode = document.adoptNode;
+
+  function adoptNodeNoRemove(node, doc) {
+    originalAdoptNode.call(doc.impl, unwrap(node));
+    adoptSubtree(node, doc);
+  }
+
+  function adoptSubtree(node, doc) {
+    if (node.shadowRoot)
+      doc.adoptNode(node.shadowRoot);
+    if (node instanceof ShadowRoot)
+      adoptOlderShadowRoots(node, doc);
+    for (var child = node.firstChild; child; child = child.nextSibling) {
+      adoptSubtree(child, doc);
+    }
+  }
+
+  function adoptOlderShadowRoots(shadowRoot, doc) {
+    var oldShadowRoot = shadowRoot.olderShadowRoot;
+    if (oldShadowRoot)
+      doc.adoptNode(oldShadowRoot);
+  }
+
+  mixin(Document.prototype, {
+    adoptNode: function(node) {
+      if (node.parentNode)
+        node.parentNode.removeChild(node);
+      adoptNodeNoRemove(node, this);
+      return node;
+    },
+    elementFromPoint: function(x, y) {
+      return elementFromPoint(this, this, x, y);
+    }
+  });
+
+  if (document.register) {
+    var originalRegister = document.register;
+    Document.prototype.register = function(tagName, object) {
+      var prototype = object.prototype;
+
+      // If we already used the object as a prototype for another custom
+      // element.
+      if (scope.nativePrototypeTable.get(prototype)) {
+        // TODO(arv): DOMException
+        throw new Error('NotSupportedError');
+      }
+
+      // Find first object on the prototype chain that already have a native
+      // prototype. Keep track of all the objects before that so we can create
+      // a similar structure for the native case.
+      var proto = Object.getPrototypeOf(prototype);
+      var nativePrototype;
+      var prototypes = [];
+      while (proto) {
+        nativePrototype = scope.nativePrototypeTable.get(proto);
+        if (nativePrototype)
+          break;
+        prototypes.push(proto);
+        proto = Object.getPrototypeOf(proto);
+      }
+
+      if (!nativePrototype) {
+        // TODO(arv): DOMException
+        throw new Error('NotSupportedError');
+      }
+
+      // This works by creating a new prototype object that is empty, but has
+      // the native prototype as its proto. The original prototype object
+      // passed into register is used as the wrapper prototype.
+
+      var newPrototype = Object.create(nativePrototype);
+      for (var i = prototypes.length - 1; i >= 0; i--) {
+        newPrototype = Object.create(newPrototype);
+      }
+
+      // Add callbacks if present.
+      // Names are taken from:
+      //   https://code.google.com/p/chromium/codesearch#chromium/src/third_party/WebKit/Source/bindings/v8/CustomElementConstructorBuilder.cpp&sq=package:chromium&type=cs&l=156
+      // and not from the spec since the spec is out of date.
+      [
+        'createdCallback',
+        'enteredViewCallback',
+        'leftViewCallback',
+        'attributeChangedCallback',
+      ].forEach(function(name) {
+        var f = prototype[name];
+        if (!f)
+          return;
+        newPrototype[name] = function() {
+          f.apply(wrap(this), arguments);
+        };
+      });
+
+      var p = {prototype: newPrototype};
+      if (object.extends)
+        p.extends = object.extends;
+      var nativeConstructor = originalRegister.call(unwrap(this), tagName, p);
+
+      function GeneratedWrapper(node) {
+        if (!node) {
+          if (object.extends) {
+            return document.createElement(object.extends, tagName);
+          } else {
+            return document.createElement(tagName);
+          }
+        }
+        this.impl = node;
+      }
+      GeneratedWrapper.prototype = prototype;
+      GeneratedWrapper.prototype.constructor = GeneratedWrapper;
+
+      scope.constructorTable.set(newPrototype, GeneratedWrapper);
+      scope.nativePrototypeTable.set(prototype, newPrototype);
+
+      return GeneratedWrapper;
+    };
+
+    forwardMethodsToWrapper([
+      window.HTMLDocument || window.Document,  // Gecko adds these to HTMLDocument
+    ], [
+      'register',
+    ]);
+  }
+
+  // We also override some of the methods on document.body and document.head
+  // for convenience.
+  forwardMethodsToWrapper([
+    window.HTMLBodyElement,
+    window.HTMLDocument || window.Document,  // Gecko adds these to HTMLDocument
+    window.HTMLHeadElement,
+    window.HTMLHtmlElement,
+  ], [
+    'appendChild',
+    'compareDocumentPosition',
+    'contains',
+    'getElementsByClassName',
+    'getElementsByTagName',
+    'getElementsByTagNameNS',
+    'insertBefore',
+    'querySelector',
+    'querySelectorAll',
+    'removeChild',
+    'replaceChild',
+    matchesName,
+  ]);
+
+  forwardMethodsToWrapper([
+    window.HTMLDocument || window.Document,  // Gecko adds these to HTMLDocument
+  ], [
+    'adoptNode',
+    'contains',
+    'createComment',
+    'createDocumentFragment',
+    'createElement',
+    'createElementNS',
+    'createEvent',
+    'createEventNS',
+    'createRange',
+    'createTextNode',
+    'elementFromPoint',
+    'getElementById',
+  ]);
+
+  mixin(Document.prototype, GetElementsByInterface);
+  mixin(Document.prototype, ParentNodeInterface);
+  mixin(Document.prototype, SelectorsInterface);
+
+  mixin(Document.prototype, {
+    get implementation() {
+      var implementation = implementationTable.get(this);
+      if (implementation)
+        return implementation;
+      implementation =
+          new DOMImplementation(unwrap(this).implementation);
+      implementationTable.set(this, implementation);
+      return implementation;
+    }
+  });
+
+  registerWrapper(window.Document, Document,
+      document.implementation.createHTMLDocument(''));
+
+  // Both WebKit and Gecko uses HTMLDocument for document. HTML5/DOM only has
+  // one Document interface and IE implements the standard correctly.
+  if (window.HTMLDocument)
+    registerWrapper(window.HTMLDocument, Document);
+
+  wrapEventTargetMethods([
+    window.HTMLBodyElement,
+    window.HTMLDocument || window.Document,  // Gecko adds these to HTMLDocument
+    window.HTMLHeadElement,
+  ]);
+
+  function DOMImplementation(impl) {
+    this.impl = impl;
+  }
+
+  function wrapImplMethod(constructor, name) {
+    var original = document.implementation[name];
+    constructor.prototype[name] = function() {
+      return wrap(original.apply(this.impl, arguments));
+    };
+  }
+
+  function forwardImplMethod(constructor, name) {
+    var original = document.implementation[name];
+    constructor.prototype[name] = function() {
+      return original.apply(this.impl, arguments);
+    };
+  }
+
+  wrapImplMethod(DOMImplementation, 'createDocumentType');
+  wrapImplMethod(DOMImplementation, 'createDocument');
+  wrapImplMethod(DOMImplementation, 'createHTMLDocument');
+  forwardImplMethod(DOMImplementation, 'hasFeature');
+
+  registerWrapper(window.DOMImplementation, DOMImplementation);
+
+  forwardMethodsToWrapper([
+    window.DOMImplementation,
+  ], [
+    'createDocumentType',
+    'createDocument',
+    'createHTMLDocument',
+    'hasFeature',
+  ]);
+
+  scope.adoptNodeNoRemove = adoptNodeNoRemove;
+  scope.wrappers.DOMImplementation = DOMImplementation;
+  scope.wrappers.Document = Document;
+
+})(this.ShadowDOMPolyfill);
+
+// Copyright 2013 The Polymer Authors. All rights reserved.
+// Use of this source code is goverened by a BSD-style
+// license that can be found in the LICENSE file.
+
+(function(scope) {
+  'use strict';
+
+  var EventTarget = scope.wrappers.EventTarget;
+  var mixin = scope.mixin;
+  var registerWrapper = scope.registerWrapper;
+  var unwrap = scope.unwrap;
+  var unwrapIfNeeded = scope.unwrapIfNeeded;
+  var wrap = scope.wrap;
+  var renderAllPending = scope.renderAllPending;
+
+  var OriginalWindow = window.Window;
+
+  function Window(impl) {
+    EventTarget.call(this, impl);
+  }
+  Window.prototype = Object.create(EventTarget.prototype);
+
+  var originalGetComputedStyle = window.getComputedStyle;
+  OriginalWindow.prototype.getComputedStyle = function(el, pseudo) {
+    renderAllPending();
+    return originalGetComputedStyle.call(this || window, unwrapIfNeeded(el),
+                                         pseudo);
+  };
+
+  ['addEventListener', 'removeEventListener', 'dispatchEvent'].forEach(
+      function(name) {
+        OriginalWindow.prototype[name] = function() {
+          var w = wrap(this || window);
+          return w[name].apply(w, arguments);
+        };
+      });
+
+  mixin(Window.prototype, {
+    getComputedStyle: function(el, pseudo) {
+      return originalGetComputedStyle.call(unwrap(this), unwrapIfNeeded(el),
+                                           pseudo);
+    }
+  });
+
+  registerWrapper(OriginalWindow, Window);
+
+  scope.wrappers.Window = Window;
+
+})(this.ShadowDOMPolyfill);
+
+// Copyright 2013 The Polymer Authors. All rights reserved.
+// Use of this source code is goverened by a BSD-style
+// license that can be found in the LICENSE file.
+
+(function(scope) {
+  'use strict';
+
+  var defineGetter = scope.defineGetter;
+  var defineWrapGetter = scope.defineWrapGetter;
+  var registerWrapper = scope.registerWrapper;
+  var unwrapIfNeeded = scope.unwrapIfNeeded;
+  var wrapNodeList = scope.wrapNodeList;
+  var wrappers = scope.wrappers;
+
+  var OriginalMutationObserver = window.MutationObserver ||
+      window.WebKitMutationObserver;
+
+  if (!OriginalMutationObserver)
+    return;
+
+  var OriginalMutationRecord = window.MutationRecord;
+
+  function MutationRecord(impl) {
+    this.impl = impl;
+  }
+
+  MutationRecord.prototype = {
+    get addedNodes() {
+      return wrapNodeList(this.impl.addedNodes);
+    },
+    get removedNodes() {
+      return wrapNodeList(this.impl.removedNodes);
+    }
+  };
+
+  ['target', 'previousSibling', 'nextSibling'].forEach(function(name) {
+    defineWrapGetter(MutationRecord, name);
+  });
+
+  // WebKit/Blink treats these as instance properties so we override
+  [
+    'type',
+    'attributeName',
+    'attributeNamespace',
+    'oldValue'
+  ].forEach(function(name) {
+    defineGetter(MutationRecord, name, function() {
+      return this.impl[name];
+    });
+  });
+
+  if (OriginalMutationRecord)
+    registerWrapper(OriginalMutationRecord, MutationRecord);
+
+  function wrapRecord(record) {
+    return new MutationRecord(record);
+  }
+
+  function wrapRecords(records) {
+    return records.map(wrapRecord);
+  }
+
+  function MutationObserver(callback) {
+    var self = this;
+    this.impl = new OriginalMutationObserver(function(mutations, observer) {
+      callback.call(self, wrapRecords(mutations), self);
+    });
+  }
+
+  var OriginalNode = window.Node;
+
+  MutationObserver.prototype = {
+    observe: function(target, options) {
+      this.impl.observe(unwrapIfNeeded(target), options);
+    },
+    disconnect: function() {
+      this.impl.disconnect();
+    },
+    takeRecords: function() {
+      return wrapRecords(this.impl.takeRecords());
+    }
+  };
+
+  scope.wrappers.MutationObserver = MutationObserver;
+  scope.wrappers.MutationRecord = MutationRecord;
+
+})(this.ShadowDOMPolyfill);
+
+// Copyright 2013 The Polymer Authors. All rights reserved.
+// Use of this source code is goverened by a BSD-style
+// license that can be found in the LICENSE file.
+
+(function(scope) {
+  'use strict';
+
+  var registerWrapper = scope.registerWrapper;
+  var unwrap = scope.unwrap;
+  var unwrapIfNeeded = scope.unwrapIfNeeded;
+  var wrap = scope.wrap;
+
+  var OriginalRange = window.Range;
+
+  function Range(impl) {
+    this.impl = impl;
+  }
+  Range.prototype = {
+    get startContainer() {
+      return wrap(this.impl.startContainer);
+    },
+    get endContainer() {
+      return wrap(this.impl.endContainer);
+    },
+    get commonAncestorContainer() {
+      return wrap(this.impl.commonAncestorContainer);
+    },
+    setStart: function(refNode,offset) {
+      this.impl.setStart(unwrapIfNeeded(refNode), offset);
+    },
+    setEnd: function(refNode,offset) {
+      this.impl.setEnd(unwrapIfNeeded(refNode), offset);
+    },
+    setStartBefore: function(refNode) {
+      this.impl.setStartBefore(unwrapIfNeeded(refNode));
+    },
+    setStartAfter: function(refNode) {
+      this.impl.setStartAfter(unwrapIfNeeded(refNode));
+    },
+    setEndBefore: function(refNode) {
+      this.impl.setEndBefore(unwrapIfNeeded(refNode));
+    },
+    setEndAfter: function(refNode) {
+      this.impl.setEndAfter(unwrapIfNeeded(refNode));
+    },
+    selectNode: function(refNode) {
+      this.impl.selectNode(unwrapIfNeeded(refNode));
+    },
+    selectNodeContents: function(refNode) {
+      this.impl.selectNodeContents(unwrapIfNeeded(refNode));
+    },
+    compareBoundaryPoints: function(how, sourceRange) {
+      return this.impl.compareBoundaryPoints(how, unwrap(sourceRange));
+    },
+    extractContents: function() {
+      return wrap(this.impl.extractContents());
+    },
+    cloneContents: function() {
+      return wrap(this.impl.cloneContents());
+    },
+    insertNode: function(node) {
+      this.impl.insertNode(unwrapIfNeeded(node));
+    },
+    surroundContents: function(newParent) {
+      this.impl.surroundContents(unwrapIfNeeded(newParent));
+    },
+    cloneRange: function() {
+      return wrap(this.impl.cloneRange());
+    },
+    isPointInRange: function(node, offset) {
+      return this.impl.isPointInRange(unwrapIfNeeded(node), offset);
+    },
+    comparePoint: function(node, offset) {
+      return this.impl.comparePoint(unwrapIfNeeded(node), offset);
+    },
+    intersectsNode: function(node) {
+      return this.impl.intersectsNode(unwrapIfNeeded(node));
+    }
+  };
+
+  // IE9 does not have createContextualFragment.
+  if (OriginalRange.prototype.createContextualFragment) {
+    Range.prototype.createContextualFragment = function(html) {
+      return wrap(this.impl.createContextualFragment(html));
+    };
+  }
+
+  registerWrapper(window.Range, Range);
+
+  scope.wrappers.Range = Range;
+
+})(this.ShadowDOMPolyfill);
+
+// Copyright 2013 The Polymer Authors. All rights reserved.
+// Use of this source code is goverened by a BSD-style
+// license that can be found in the LICENSE file.
+
+(function(scope) {
+  'use strict';
+
+  var isWrapperFor = scope.isWrapperFor;
+
+  // This is a list of the elements we currently override the global constructor
+  // for.
+  var elements = {
+    'a': 'HTMLAnchorElement',
+    'applet': 'HTMLAppletElement',
+    'area': 'HTMLAreaElement',
+    'br': 'HTMLBRElement',
+    'base': 'HTMLBaseElement',
+    'body': 'HTMLBodyElement',
+    'button': 'HTMLButtonElement',
+    // 'command': 'HTMLCommandElement',  // Not fully implemented in Gecko.
+    'dl': 'HTMLDListElement',
+    'datalist': 'HTMLDataListElement',
+    'data': 'HTMLDataElement',
+    'dir': 'HTMLDirectoryElement',
+    'div': 'HTMLDivElement',
+    'embed': 'HTMLEmbedElement',
+    'fieldset': 'HTMLFieldSetElement',
+    'font': 'HTMLFontElement',
+    'form': 'HTMLFormElement',
+    'frame': 'HTMLFrameElement',
+    'frameset': 'HTMLFrameSetElement',
+    'hr': 'HTMLHRElement',
+    'head': 'HTMLHeadElement',
+    'h1': 'HTMLHeadingElement',
+    'html': 'HTMLHtmlElement',
+    'iframe': 'HTMLIFrameElement',
+    'input': 'HTMLInputElement',
+    'li': 'HTMLLIElement',
+    'label': 'HTMLLabelElement',
+    'legend': 'HTMLLegendElement',
+    'link': 'HTMLLinkElement',
+    'map': 'HTMLMapElement',
+    'marquee': 'HTMLMarqueeElement',
+    'menu': 'HTMLMenuElement',
+    'menuitem': 'HTMLMenuItemElement',
+    'meta': 'HTMLMetaElement',
+    'meter': 'HTMLMeterElement',
+    'del': 'HTMLModElement',
+    'ol': 'HTMLOListElement',
+    'object': 'HTMLObjectElement',
+    'optgroup': 'HTMLOptGroupElement',
+    'option': 'HTMLOptionElement',
+    'output': 'HTMLOutputElement',
+    'p': 'HTMLParagraphElement',
+    'param': 'HTMLParamElement',
+    'pre': 'HTMLPreElement',
+    'progress': 'HTMLProgressElement',
+    'q': 'HTMLQuoteElement',
+    'script': 'HTMLScriptElement',
+    'select': 'HTMLSelectElement',
+    'source': 'HTMLSourceElement',
+    'span': 'HTMLSpanElement',
+    'style': 'HTMLStyleElement',
+    'time': 'HTMLTimeElement',
+    'caption': 'HTMLTableCaptionElement',
+    // WebKit and Moz are wrong:
+    // https://bugs.webkit.org/show_bug.cgi?id=111469
+    // https://bugzilla.mozilla.org/show_bug.cgi?id=848096
+    // 'td': 'HTMLTableCellElement',
+    'col': 'HTMLTableColElement',
+    'table': 'HTMLTableElement',
+    'tr': 'HTMLTableRowElement',
+    'thead': 'HTMLTableSectionElement',
+    'tbody': 'HTMLTableSectionElement',
+    'textarea': 'HTMLTextAreaElement',
+    'track': 'HTMLTrackElement',
+    'title': 'HTMLTitleElement',
+    'ul': 'HTMLUListElement',
+    'video': 'HTMLVideoElement',
+  };
+
+  function overrideConstructor(tagName) {
+    var nativeConstructorName = elements[tagName];
+    var nativeConstructor = window[nativeConstructorName];
+    if (!nativeConstructor)
+      return;
+    var element = document.createElement(tagName);
+    var wrapperConstructor = element.constructor;
+    window[nativeConstructorName] = wrapperConstructor;
+  }
+
+  Object.keys(elements).forEach(overrideConstructor);
+
+  Object.getOwnPropertyNames(scope.wrappers).forEach(function(name) {
+    window[name] = scope.wrappers[name]
+  });
+
+  // Export for testing.
+  scope.knownElements = elements;
+
+})(this.ShadowDOMPolyfill);
+/*
+ * Copyright 2013 The Polymer Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style
+ * license that can be found in the LICENSE file.
+ */
+(function() {
+  var ShadowDOMPolyfill = window.ShadowDOMPolyfill;
+  var wrap = ShadowDOMPolyfill.wrap;
+
+  // patch in prefixed name
+  Object.defineProperties(HTMLElement.prototype, {
+    //TODO(sjmiles): review accessor alias with Arv
+    webkitShadowRoot: {
+      get: function() {
+        return this.shadowRoot;
+      }
+    }
+  });
+
+  //TODO(sjmiles): review method alias with Arv
+  HTMLElement.prototype.webkitCreateShadowRoot =
+      HTMLElement.prototype.createShadowRoot;
+
+  // TODO(jmesserly): we need to wrap document somehow (a dart:html hook?)
+  window.dartExperimentalFixupGetTag = function(originalGetTag) {
+    var NodeList = ShadowDOMPolyfill.wrappers.NodeList;
+    var ShadowRoot = ShadowDOMPolyfill.wrappers.ShadowRoot;
+    var unwrapIfNeeded = ShadowDOMPolyfill.unwrapIfNeeded;
+    function getTag(obj) {
+      // TODO(jmesserly): do we still need these?
+      if (obj instanceof NodeList) return 'NodeList';
+      if (obj instanceof ShadowRoot) return 'ShadowRoot';
+      if (window.MutationRecord && (obj instanceof MutationRecord))
+          return 'MutationRecord';
+      if (window.MutationObserver && (obj instanceof MutationObserver))
+          return 'MutationObserver';
+
+      // TODO(jmesserly): this prevents incorrect interaction between ShadowDOM
+      // and dart:html's <template> polyfill. Essentially, ShadowDOM is
+      // polyfilling native template, but our Dart polyfill fails to detect this
+      // because the unwrapped node is an HTMLUnknownElement, leading it to
+      // think the node has no content.
+      if (obj instanceof HTMLTemplateElement) return 'HTMLTemplateElement';
+
+      var unwrapped = unwrapIfNeeded(obj);
+      if (obj !== unwrapped) {
+        // Fix up class names for Firefox.
+        // For some of them (like HTMLFormElement and HTMLInputElement),
+        // the "constructor" property of the unwrapped nodes points at the
+        // same constructor as the wrapper.
+        var ctor = obj.constructor
+        if (ctor === unwrapped.constructor) {
+          var name = ctor._ShadowDOMPolyfill$cacheTag_;
+          if (!name) {
+            name = Object.prototype.toString.call(unwrapped);
+            name = name.substring(8, name.length - 1);
+            ctor._ShadowDOMPolyfill$cacheTag_ = name;
+          }
+          return name;
+        }
+
+        obj = unwrapped;
+      }
+      return originalGetTag(obj);
+    }
+
+    return getTag;
+  };
+})();
+
+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+var Platform = {};
+
+/*
+ * Copyright 2012 The Polymer Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style
+ * license that can be found in the LICENSE file.
+ */
+
+/*
+  This is a limited shim for ShadowDOM css styling.
+  https://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html#styles
+  
+  The intention here is to support only the styling features which can be 
+  relatively simply implemented. The goal is to allow users to avoid the 
+  most obvious pitfalls and do so without compromising performance significantly. 
+  For ShadowDOM styling that's not covered here, a set of best practices
+  can be provided that should allow users to accomplish more complex styling.
+
+  The following is a list of specific ShadowDOM styling features and a brief
+  discussion of the approach used to shim.
+
+  Shimmed features:
+
+  * @host: ShadowDOM allows styling of the shadowRoot's host element using the 
+  @host rule. To shim this feature, the @host styles are reformatted and 
+  prefixed with a given scope name and promoted to a document level stylesheet.
+  For example, given a scope name of .foo, a rule like this:
+  
+    @host {
+      * {
+        background: red;
+      }
+    }
+  
+  becomes:
+  
+    .foo {
+      background: red;
+    }
+  
+  * encapsultion: Styles defined within ShadowDOM, apply only to 
+  dom inside the ShadowDOM. Polymer uses one of two techniques to imlement
+  this feature.
+  
+  By default, rules are prefixed with the host element tag name 
+  as a descendant selector. This ensures styling does not leak out of the 'top'
+  of the element's ShadowDOM. For example,
+
+  div {
+      font-weight: bold;
+    }
+  
+  becomes:
+
+  x-foo div {
+      font-weight: bold;
+    }
+  
+  becomes:
+
+
+  Alternatively, if Platform.ShadowCSS.strictStyling is set to true then 
+  selectors are scoped by adding an attribute selector suffix to each
+  simple selector that contains the host element tag name. Each element 
+  in the element's ShadowDOM template is also given the scope attribute. 
+  Thus, these rules match only elements that have the scope attribute.
+  For example, given a scope name of x-foo, a rule like this:
+  
+    div {
+      font-weight: bold;
+    }
+  
+  becomes:
+  
+    div[x-foo] {
+      font-weight: bold;
+    }
+
+  Note that elements that are dynamically added to a scope must have the scope
+  selector added to them manually.
+
+  * ::pseudo: These rules are converted to rules that take advantage of the
+  pseudo attribute. For example, a shadowRoot like this inside an x-foo
+
+    <div pseudo="x-special">Special</div>
+
+  with a rule like this:
+
+    x-foo::x-special { ... }
+
+  becomes:
+
+    x-foo [pseudo=x-special] { ... }
+
+  * ::part(): These rules are converted to rules that take advantage of the
+  part attribute. For example, a shadowRoot like this inside an x-foo
+
+    <div part="special">Special</div>
+
+  with a rule like this:
+
+    x-foo::part(special) { ... }
+
+  becomes:
+
+    x-foo [part=special] { ... }    
+  
+  Unaddressed ShadowDOM styling features:
+  
+  * upper/lower bound encapsulation: Styles which are defined outside a
+  shadowRoot should not cross the ShadowDOM boundary and should not apply
+  inside a shadowRoot.
+
+  This styling behavior is not emulated. Some possible ways to do this that 
+  were rejected due to complexity and/or performance concerns include: (1) reset
+  every possible property for every possible selector for a given scope name;
+  (2) re-implement css in javascript.
+  
+  As an alternative, users should make sure to use selectors
+  specific to the scope in which they are working.
+  
+  * ::distributed: This behavior is not emulated. It's often not necessary
+  to style the contents of a specific insertion point and instead, descendants
+  of the host element can be styled selectively. Users can also create an 
+  extra node around an insertion point and style that node's contents
+  via descendent selectors. For example, with a shadowRoot like this:
+  
+    <style>
+      content::-webkit-distributed(div) {
+        background: red;
+      }
+    </style>
+    <content></content>
+  
+  could become:
+  
+    <style>
+      / *@polyfill .content-container div * / 
+      content::-webkit-distributed(div) {
+        background: red;
+      }
+    </style>
+    <div class="content-container">
+      <content></content>
+    </div>
+  
+  Note the use of @polyfill in the comment above a ShadowDOM specific style
+  declaration. This is a directive to the styling shim to use the selector 
+  in comments in lieu of the next selector when running under polyfill.
+*/
+(function(scope) {
+
+var ShadowCSS = {
+  strictStyling: false,
+  registry: {},
+  // Shim styles for a given root associated with a name and extendsName
+  // 1. cache root styles by name
+  // 2. optionally tag root nodes with scope name
+  // 3. shim polyfill directives /* @polyfill */ and /* @polyfill-rule */
+  // 4. shim @host and scoping
+  shimStyling: function(root, name, extendsName) {
+    var typeExtension = this.isTypeExtension(extendsName);
+    // use caching to make working with styles nodes easier and to facilitate
+    // lookup of extendee
+    var def = this.registerDefinition(root, name, extendsName);
+    // find styles and apply shimming...
+    if (this.strictStyling) {
+      this.applyScopeToContent(root, name);
+    }
+    // insert @polyfill and @polyfill-rule rules into style elements
+    // scoping process takes care of shimming these
+    this.insertPolyfillDirectives(def.rootStyles);
+    this.insertPolyfillRules(def.rootStyles);
+    var cssText = this.stylesToShimmedCssText(def.scopeStyles, name,
+        typeExtension);
+    // note: we only need to do rootStyles since these are unscoped.
+    cssText += this.extractPolyfillUnscopedRules(def.rootStyles);
+    // provide shimmedStyle for user extensibility
+    def.shimmedStyle = cssTextToStyle(cssText);
+    if (root) {
+      root.shimmedStyle = def.shimmedStyle;
+    }
+    // remove existing style elements
+    for (var i=0, l=def.rootStyles.length, s; (i<l) && (s=def.rootStyles[i]); 
+        i++) {
+      s.parentNode.removeChild(s);
+    }
+    // add style to document
+    addCssToDocument(cssText);
+  },
+  registerDefinition: function(root, name, extendsName) {
+    var def = this.registry[name] = {
+      root: root,
+      name: name,
+      extendsName: extendsName
+    }
+    var styles = root ? root.querySelectorAll('style') : [];
+    styles = styles ? Array.prototype.slice.call(styles, 0) : [];
+    def.rootStyles = styles;
+    def.scopeStyles = def.rootStyles;
+    var extendee = this.registry[def.extendsName];
+    if (extendee && (!root || root.querySelector('shadow'))) {
+      def.scopeStyles = extendee.scopeStyles.concat(def.scopeStyles);
+    }
+    return def;
+  },
+  isTypeExtension: function(extendsName) {
+    return extendsName && extendsName.indexOf('-') < 0;
+  },
+  applyScopeToContent: function(root, name) {
+    if (root) {
+      // add the name attribute to each node in root.
+      Array.prototype.forEach.call(root.querySelectorAll('*'),
+          function(node) {
+            node.setAttribute(name, '');
+          });
+      // and template contents too
+      Array.prototype.forEach.call(root.querySelectorAll('template'),
+          function(template) {
+            this.applyScopeToContent(template.content, name);
+          },
+          this);
+    }
+  },
+  /*
+   * Process styles to convert native ShadowDOM rules that will trip
+   * up the css parser; we rely on decorating the stylesheet with comments.
+   * 
+   * For example, we convert this rule:
+   * 
+   * (comment start) @polyfill :host menu-item (comment end)
+   * shadow::-webkit-distributed(menu-item) {
+   * 
+   * to this:
+   * 
+   * scopeName menu-item {
+   *
+  **/
+  insertPolyfillDirectives: function(styles) {
+    if (styles) {
+      Array.prototype.forEach.call(styles, function(s) {
+        s.textContent = this.insertPolyfillDirectivesInCssText(s.textContent);
+      }, this);
+    }
+  },
+  insertPolyfillDirectivesInCssText: function(cssText) {
+    return cssText.replace(cssPolyfillCommentRe, function(match, p1) {
+      // remove end comment delimiter and add block start
+      return p1.slice(0, -2) + '{';
+    });
+  },
+  /*
+   * Process styles to add rules which will only apply under the polyfill
+   * 
+   * For example, we convert this rule:
+   * 
+   * (comment start) @polyfill-rule :host menu-item { 
+   * ... } (comment end)
+   * 
+   * to this:
+   * 
+   * scopeName menu-item {...}
+   *
+  **/
+  insertPolyfillRules: function(styles) {
+    if (styles) {
+      Array.prototype.forEach.call(styles, function(s) {
+        s.textContent = this.insertPolyfillRulesInCssText(s.textContent);
+      }, this);
+    }
+  },
+  insertPolyfillRulesInCssText: function(cssText) {
+    return cssText.replace(cssPolyfillRuleCommentRe, function(match, p1) {
+      // remove end comment delimiter
+      return p1.slice(0, -1);
+    });
+  },
+  /*
+   * Process styles to add rules which will only apply under the polyfill
+   * and do not process via CSSOM. (CSSOM is destructive to rules on rare 
+   * occasions, e.g. -webkit-calc on Safari.)
+   * For example, we convert this rule:
+   * 
+   * (comment start) @polyfill-unscoped-rule menu-item { 
+   * ... } (comment end)
+   * 
+   * to this:
+   * 
+   * menu-item {...}
+   *
+  **/
+  extractPolyfillUnscopedRules: function(styles) {
+    var cssText = '';
+    if (styles) {
+      Array.prototype.forEach.call(styles, function(s) {
+        cssText += this.extractPolyfillUnscopedRulesFromCssText(
+            s.textContent) + '\n\n';
+      }, this);
+    }
+    return cssText;
+  },
+  extractPolyfillUnscopedRulesFromCssText: function(cssText) {
+    var r = '', matches;
+    while (matches = cssPolyfillUnscopedRuleCommentRe.exec(cssText)) {
+      r += matches[1].slice(0, -1) + '\n\n';
+    }
+    return r;
+  },
+  // apply @host and scope shimming
+  stylesToShimmedCssText: function(styles, name, typeExtension) {
+    return this.shimAtHost(styles, name, typeExtension) +
+        this.shimScoping(styles, name, typeExtension);
+  },
+  // form: @host { .foo { declarations } }
+  // becomes: scopeName.foo { declarations }
+  shimAtHost: function(styles, name, typeExtension) {
+    if (styles) {
+      return this.convertAtHostStyles(styles, name, typeExtension);
+    }
+  },
+  convertAtHostStyles: function(styles, name, typeExtension) {
+    var cssText = stylesToCssText(styles), self = this;
+    cssText = cssText.replace(hostRuleRe, function(m, p1) {
+      return self.scopeHostCss(p1, name, typeExtension);
+    });
+    cssText = rulesToCss(this.findAtHostRules(cssToRules(cssText),
+        this.makeScopeMatcher(name, typeExtension)));
+    return cssText;
+  },
+  scopeHostCss: function(cssText, name, typeExtension) {
+    var self = this;
+    return cssText.replace(selectorRe, function(m, p1, p2) {
+      return self.scopeHostSelector(p1, name, typeExtension) + ' ' + p2 + '\n\t';
+    });
+  },
+  // supports scopig by name and  [is=name] syntax
+  scopeHostSelector: function(selector, name, typeExtension) {
+    var r = [], parts = selector.split(','), is = '[is=' + name + ']';
+    parts.forEach(function(p) {
+      p = p.trim();
+      // selector: *|:scope -> name
+      if (p.match(hostElementRe)) {
+        p = p.replace(hostElementRe, typeExtension ? is + '$1$3' :
+            name + '$1$3');
+      // selector: .foo -> name.foo (OR) [bar] -> name[bar]
+      } else if (p.match(hostFixableRe)) {
+        p = typeExtension ? is + p : name + p;
+      }
+      r.push(p);
+    }, this);
+    return r.join(', ');
+  },
+  // consider styles that do not include component name in the selector to be
+  // unscoped and in need of promotion; 
+  // for convenience, also consider keyframe rules this way.
+  findAtHostRules: function(cssRules, matcher) {
+    return Array.prototype.filter.call(cssRules, 
+      this.isHostRule.bind(this, matcher));
+  },
+  isHostRule: function(matcher, cssRule) {
+    return (cssRule.selectorText && cssRule.selectorText.match(matcher)) ||
+      (cssRule.cssRules && this.findAtHostRules(cssRule.cssRules, matcher).length) ||
+      (cssRule.type == CSSRule.WEBKIT_KEYFRAMES_RULE);
+  },
+  /* Ensure styles are scoped. Pseudo-scoping takes a rule like:
+   * 
+   *  .foo {... } 
+   *  
+   *  and converts this to
+   *  
+   *  scopeName .foo { ... }
+  */
+  shimScoping: function(styles, name, typeExtension) {
+    if (styles) {
+      return this.convertScopedStyles(styles, name, typeExtension);
+    }
+  },
+  convertScopedStyles: function(styles, name, typeExtension) {
+    var cssText = stylesToCssText(styles).replace(hostRuleRe, '');
+    cssText = this.insertPolyfillHostInCssText(cssText);
+    cssText = this.convertColonHost(cssText);
+    cssText = this.convertPseudos(cssText);
+    cssText = this.convertParts(cssText);
+    cssText = this.convertCombinators(cssText);
+    var rules = cssToRules(cssText);
+    cssText = this.scopeRules(rules, name, typeExtension);
+    return cssText;
+  },
+  convertPseudos: function(cssText) {
+    return cssText.replace(cssPseudoRe, ' [pseudo=$1]');
+  },
+  convertParts: function(cssText) {
+    return cssText.replace(cssPartRe, ' [part=$1]');
+  },
+  /*
+   * convert a rule like :host(.foo) > .bar { }
+   *
+   * to
+   *
+   * scopeName.foo > .bar, .foo scopeName > .bar { }
+   * 
+   * and
+   *
+   * :host(.foo:host) .bar { ... }
+   * 
+   * to
+   * 
+   * scopeName.foo .bar { ... }
+  */
+  convertColonHost: function(cssText) {
+    // p1 = :host, p2 = contents of (), p3 rest of rule
+    return cssText.replace(cssColonHostRe, function(m, p1, p2, p3) {
+      p1 = polyfillHostNoCombinator;
+      if (p2) {
+        if (p2.match(polyfillHost)) {
+          return p1 + p2.replace(polyfillHost, '') + p3;
+        } else {
+          return p1 + p2 + p3 + ', ' + p2 + ' ' + p1 + p3;
+        }
+      } else {
+        return p1 + p3;
+      }
+    });
+  },
+  /*
+   * Convert ^ and ^^ combinators by replacing with space.
+  */
+  convertCombinators: function(cssText) {
+    return cssText.replace('^^', ' ').replace('^', ' ');
+  },
+  // change a selector like 'div' to 'name div'
+  scopeRules: function(cssRules, name, typeExtension) {
+    var cssText = '';
+    Array.prototype.forEach.call(cssRules, function(rule) {
+      if (rule.selectorText && (rule.style && rule.style.cssText)) {
+        cssText += this.scopeSelector(rule.selectorText, name, typeExtension, 
+          this.strictStyling) + ' {\n\t';
+        cssText += this.propertiesFromRule(rule) + '\n}\n\n';
+      } else if (rule.media) {
+        cssText += '@media ' + rule.media.mediaText + ' {\n';
+        cssText += this.scopeRules(rule.cssRules, name);
+        cssText += '\n}\n\n';
+      } else if (rule.cssText) {
+        cssText += rule.cssText + '\n\n';
+      }
+    }, this);
+    return cssText;
+  },
+  scopeSelector: function(selector, name, typeExtension, strict) {
+    var r = [], parts = selector.split(',');
+    parts.forEach(function(p) {
+      p = p.trim();
+      if (this.selectorNeedsScoping(p, name, typeExtension)) {
+        p = strict ? this.applyStrictSelectorScope(p, name) :
+          this.applySimpleSelectorScope(p, name, typeExtension);
+      }
+      r.push(p);
+    }, this);
+    return r.join(', ');
+  },
+  selectorNeedsScoping: function(selector, name, typeExtension) {
+    var re = this.makeScopeMatcher(name, typeExtension);
+    return !selector.match(re);
+  },
+  makeScopeMatcher: function(name, typeExtension) {
+    var matchScope = typeExtension ? '\\[is=[\'"]?' + name + '[\'"]?\\]' : name;
+    return new RegExp('^(' + matchScope + ')' + selectorReSuffix, 'm');
+  },
+  // scope via name and [is=name]
+  applySimpleSelectorScope: function(selector, name, typeExtension) {
+    var scoper = typeExtension ? '[is=' + name + ']' : name;
+    if (selector.match(polyfillHostRe)) {
+      selector = selector.replace(polyfillHostNoCombinator, scoper);
+      return selector.replace(polyfillHostRe, scoper + ' ');
+    } else {
+      return scoper + ' ' + selector;
+    }
+  },
+  // return a selector with [name] suffix on each simple selector
+  // e.g. .foo.bar > .zot becomes .foo[name].bar[name] > .zot[name]
+  applyStrictSelectorScope: function(selector, name) {
+    var splits = [' ', '>', '+', '~'],
+      scoped = selector,
+      attrName = '[' + name + ']';
+    splits.forEach(function(sep) {
+      var parts = scoped.split(sep);
+      scoped = parts.map(function(p) {
+        // remove :host since it should be unnecessary
+        var t = p.trim().replace(polyfillHostRe, '');
+        if (t && (splits.indexOf(t) < 0) && (t.indexOf(attrName) < 0)) {
+          p = t.replace(/([^:]*)(:*)(.*)/, '$1' + attrName + '$2$3')
+        }
+        return p;
+      }).join(sep);
+    });
+    return scoped;
+  },
+  insertPolyfillHostInCssText: function(selector) {
+    return selector.replace(hostRe, polyfillHost).replace(colonHostRe,
+        polyfillHost);
+  },
+  propertiesFromRule: function(rule) {
+    var properties = rule.style.cssText;
+    // TODO(sorvell): Chrome cssom incorrectly removes quotes from the content
+    // property. (https://code.google.com/p/chromium/issues/detail?id=247231)
+    if (rule.style.content && !rule.style.content.match(/['"]+/)) {
+      properties = 'content: \'' + rule.style.content + '\';\n' + 
+        rule.style.cssText.replace(/content:[^;]*;/g, '');
+    }
+    return properties;
+  }
+};
+
+var hostRuleRe = /@host[^{]*{(([^}]*?{[^{]*?}[\s\S]*?)+)}/gim,
+    selectorRe = /([^{]*)({[\s\S]*?})/gim,
+    hostElementRe = /(.*)((?:\*)|(?:\:scope))(.*)/,
+    hostFixableRe = /^[.\[:]/,
+    cssCommentRe = /\/\*[^*]*\*+([^/*][^*]*\*+)*\//gim,
+    cssPolyfillCommentRe = /\/\*\s*@polyfill ([^*]*\*+([^/*][^*]*\*+)*\/)([^{]*?){/gim,
+    cssPolyfillRuleCommentRe = /\/\*\s@polyfill-rule([^*]*\*+([^/*][^*]*\*+)*)\//gim,
+    cssPolyfillUnscopedRuleCommentRe = /\/\*\s@polyfill-unscoped-rule([^*]*\*+([^/*][^*]*\*+)*)\//gim,
+    cssPseudoRe = /::(x-[^\s{,(]*)/gim,
+    cssPartRe = /::part\(([^)]*)\)/gim,
+    // note: :host pre-processed to -host.
+    cssColonHostRe = /(-host)(?:\(([^)]*)\))?([^,{]*)/gim,
+    selectorReSuffix = '([>\\s~+\[.,{:][\\s\\S]*)?$',
+    hostRe = /@host/gim,
+    colonHostRe = /\:host/gim,
+    polyfillHost = '-host',
+    /* host name without combinator */
+    polyfillHostNoCombinator = '-host-no-combinator',
+    polyfillHostRe = /-host/gim;
+
+function stylesToCssText(styles, preserveComments) {
+  var cssText = '';
+  Array.prototype.forEach.call(styles, function(s) {
+    cssText += s.textContent + '\n\n';
+  });
+  // strip comments for easier processing
+  if (!preserveComments) {
+    cssText = cssText.replace(cssCommentRe, '');
+  }
+  return cssText;
+}
+
+function cssTextToStyle(cssText) {
+  var style = document.createElement('style');
+  style.textContent = cssText;
+  return style;
+}
+
+function cssToRules(cssText) {
+  var style = cssTextToStyle(cssText);
+  document.head.appendChild(style);
+  var rules = style.sheet.cssRules;
+  style.parentNode.removeChild(style);
+  return rules;
+}
+
+function rulesToCss(cssRules) {
+  for (var i=0, css=[]; i < cssRules.length; i++) {
+    css.push(cssRules[i].cssText);
+  }
+  return css.join('\n\n');
+}
+
+function addCssToDocument(cssText) {
+  if (cssText) {
+    getSheet().appendChild(document.createTextNode(cssText));
+  }
+}
+
+var sheet;
+function getSheet() {
+  if (!sheet) {
+    sheet = document.createElement("style");
+    sheet.setAttribute('ShadowCSSShim', '');
+  }
+  return sheet;
+}
+
+// add polyfill stylesheet to document
+if (window.ShadowDOMPolyfill) {
+  addCssToDocument('style { display: none !important; }\n');
+  var head = document.querySelector('head');
+  head.insertBefore(getSheet(), head.childNodes[0]);
+}
+
+// exports
+scope.ShadowCSS = ShadowCSS;
+
+})(window.Platform);
+}// Copyright (c) 2012 The Polymer Authors. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+window.CustomElements = {flags:{}};
+// SideTable is a weak map where possible. If WeakMap is not available the
+// association is stored as an expando property.
+var SideTable;
+// TODO(arv): WeakMap does not allow for Node etc to be keys in Firefox
+if (typeof WeakMap !== 'undefined' && navigator.userAgent.indexOf('Firefox/') < 0) {
+  SideTable = WeakMap;
+} else {
+  (function() {
+    var defineProperty = Object.defineProperty;
+    var counter = Date.now() % 1e9;
+
+    SideTable = function() {
+      this.name = '__st' + (Math.random() * 1e9 >>> 0) + (counter++ + '__');
+    };
+
+    SideTable.prototype = {
+      set: function(key, value) {
+        var entry = key[this.name];
+        if (entry && entry[0] === key)
+          entry[1] = value;
+        else
+          defineProperty(key, this.name, {value: [key, value], writable: true});
+      },
+      get: function(key) {
+        var entry;
+        return (entry = key[this.name]) && entry[0] === key ?
+            entry[1] : undefined;
+      },
+      delete: function(key) {
+        this.set(key, undefined);
+      }
+    }
+  })();
+}
+
+(function(global) {
+
+  var registrationsTable = new SideTable();
+
+  // We use setImmediate or postMessage for our future callback.
+  var setImmediate = window.msSetImmediate;
+
+  // Use post message to emulate setImmediate.
+  if (!setImmediate) {
+    var setImmediateQueue = [];
+    var sentinel = String(Math.random());
+    window.addEventListener('message', function(e) {
+      if (e.data === sentinel) {
+        var queue = setImmediateQueue;
+        setImmediateQueue = [];
+        queue.forEach(function(func) {
+          func();
+        });
+      }
+    });
+    setImmediate = function(func) {
+      setImmediateQueue.push(func);
+      window.postMessage(sentinel, '*');
+    };
+  }
+
+  // This is used to ensure that we never schedule 2 callas to setImmediate
+  var isScheduled = false;
+
+  // Keep track of observers that needs to be notified next time.
+  var scheduledObservers = [];
+
+  /**
+   * Schedules |dispatchCallback| to be called in the future.
+   * @param {MutationObserver} observer
+   */
+  function scheduleCallback(observer) {
+    scheduledObservers.push(observer);
+    if (!isScheduled) {
+      isScheduled = true;
+      setImmediate(dispatchCallbacks);
+    }
+  }
+
+  function wrapIfNeeded(node) {
+    return window.ShadowDOMPolyfill &&
+        window.ShadowDOMPolyfill.wrapIfNeeded(node) ||
+        node;
+  }
+
+  function dispatchCallbacks() {
+    // http://dom.spec.whatwg.org/#mutation-observers
+
+    isScheduled = false; // Used to allow a new setImmediate call above.
+
+    var observers = scheduledObservers;
+    scheduledObservers = [];
+    // Sort observers based on their creation UID (incremental).
+    observers.sort(function(o1, o2) {
+      return o1.uid_ - o2.uid_;
+    });
+
+    var anyNonEmpty = false;
+    observers.forEach(function(observer) {
+
+      // 2.1, 2.2
+      var queue = observer.takeRecords();
+      // 2.3. Remove all transient registered observers whose observer is mo.
+      removeTransientObserversFor(observer);
+
+      // 2.4
+      if (queue.length) {
+        observer.callback_(queue, observer);
+        anyNonEmpty = true;
+      }
+    });
+
+    // 3.
+    if (anyNonEmpty)
+      dispatchCallbacks();
+  }
+
+  function removeTransientObserversFor(observer) {
+    observer.nodes_.forEach(function(node) {
+      var registrations = registrationsTable.get(node);
+      if (!registrations)
+        return;
+      registrations.forEach(function(registration) {
+        if (registration.observer === observer)
+          registration.removeTransientObservers();
+      });
+    });
+  }
+
+  /**
+   * This function is used for the "For each registered observer observer (with
+   * observer's options as options) in target's list of registered observers,
+   * run these substeps:" and the "For each ancestor ancestor of target, and for
+   * each registered observer observer (with options options) in ancestor's list
+   * of registered observers, run these substeps:" part of the algorithms. The
+   * |options.subtree| is checked to ensure that the callback is called
+   * correctly.
+   *
+   * @param {Node} target
+   * @param {function(MutationObserverInit):MutationRecord} callback
+   */
+  function forEachAncestorAndObserverEnqueueRecord(target, callback) {
+    for (var node = target; node; node = node.parentNode) {
+      var registrations = registrationsTable.get(node);
+
+      if (registrations) {
+        for (var j = 0; j < registrations.length; j++) {
+          var registration = registrations[j];
+          var options = registration.options;
+
+          // Only target ignores subtree.
+          if (node !== target && !options.subtree)
+            continue;
+
+          var record = callback(options);
+          if (record)
+            registration.enqueue(record);
+        }
+      }
+    }
+  }
+
+  var uidCounter = 0;
+
+  /**
+   * The class that maps to the DOM MutationObserver interface.
+   * @param {Function} callback.
+   * @constructor
+   */
+  function JsMutationObserver(callback) {
+    this.callback_ = callback;
+    this.nodes_ = [];
+    this.records_ = [];
+    this.uid_ = ++uidCounter;
+  }
+
+  JsMutationObserver.prototype = {
+    observe: function(target, options) {
+      target = wrapIfNeeded(target);
+
+      // 1.1
+      if (!options.childList && !options.attributes && !options.characterData ||
+
+          // 1.2
+          options.attributeOldValue && !options.attributes ||
+
+          // 1.3
+          options.attributeFilter && options.attributeFilter.length &&
+              !options.attributes ||
+
+          // 1.4
+          options.characterDataOldValue && !options.characterData) {
+
+        throw new SyntaxError();
+      }
+
+      var registrations = registrationsTable.get(target);
+      if (!registrations)
+        registrationsTable.set(target, registrations = []);
+
+      // 2
+      // If target's list of registered observers already includes a registered
+      // observer associated with the context object, replace that registered
+      // observer's options with options.
+      var registration;
+      for (var i = 0; i < registrations.length; i++) {
+        if (registrations[i].observer === this) {
+          registration = registrations[i];
+          registration.removeListeners();
+          registration.options = options;
+          break;
+        }
+      }
+
+      // 3.
+      // Otherwise, add a new registered observer to target's list of registered
+      // observers with the context object as the observer and options as the
+      // options, and add target to context object's list of nodes on which it
+      // is registered.
+      if (!registration) {
+        registration = new Registration(this, target, options);
+        registrations.push(registration);
+        this.nodes_.push(target);
+      }
+
+      registration.addListeners();
+    },
+
+    disconnect: function() {
+      this.nodes_.forEach(function(node) {
+        var registrations = registrationsTable.get(node);
+        for (var i = 0; i < registrations.length; i++) {
+          var registration = registrations[i];
+          if (registration.observer === this) {
+            registration.removeListeners();
+            registrations.splice(i, 1);
+            // Each node can only have one registered observer associated with
+            // this observer.
+            break;
+          }
+        }
+      }, this);
+      this.records_ = [];
+    },
+
+    takeRecords: function() {
+      var copyOfRecords = this.records_;
+      this.records_ = [];
+      return copyOfRecords;
+    }
+  };
+
+  /**
+   * @param {string} type
+   * @param {Node} target
+   * @constructor
+   */
+  function MutationRecord(type, target) {
+    this.type = type;
+    this.target = target;
+    this.addedNodes = [];
+    this.removedNodes = [];
+    this.previousSibling = null;
+    this.nextSibling = null;
+    this.attributeName = null;
+    this.attributeNamespace = null;
+    this.oldValue = null;
+  }
+
+  function copyMutationRecord(original) {
+    var record = new MutationRecord(original.type, original.target);
+    record.addedNodes = original.addedNodes.slice();
+    record.removedNodes = original.removedNodes.slice();
+    record.previousSibling = original.previousSibling;
+    record.nextSibling = original.nextSibling;
+    record.attributeName = original.attributeName;
+    record.attributeNamespace = original.attributeNamespace;
+    record.oldValue = original.oldValue;
+    return record;
+  };
+
+  // We keep track of the two (possibly one) records used in a single mutation.
+  var currentRecord, recordWithOldValue;
+
+  /**
+   * Creates a record without |oldValue| and caches it as |currentRecord| for
+   * later use.
+   * @param {string} oldValue
+   * @return {MutationRecord}
+   */
+  function getRecord(type, target) {
+    return currentRecord = new MutationRecord(type, target);
+  }
+
+  /**
+   * Gets or creates a record with |oldValue| based in the |currentRecord|
+   * @param {string} oldValue
+   * @return {MutationRecord}
+   */
+  function getRecordWithOldValue(oldValue) {
+    if (recordWithOldValue)
+      return recordWithOldValue;
+    recordWithOldValue = copyMutationRecord(currentRecord);
+    recordWithOldValue.oldValue = oldValue;
+    return recordWithOldValue;
+  }
+
+  function clearRecords() {
+    currentRecord = recordWithOldValue = undefined;
+  }
+
+  /**
+   * @param {MutationRecord} record
+   * @return {boolean} Whether the record represents a record from the current
+   * mutation event.
+   */
+  function recordRepresentsCurrentMutation(record) {
+    return record === recordWithOldValue || record === currentRecord;
+  }
+
+  /**
+   * Selects which record, if any, to replace the last record in the queue.
+   * This returns |null| if no record should be replaced.
+   *
+   * @param {MutationRecord} lastRecord
+   * @param {MutationRecord} newRecord
+   * @param {MutationRecord}
+   */
+  function selectRecord(lastRecord, newRecord) {
+    if (lastRecord === newRecord)
+      return lastRecord;
+
+    // Check if the the record we are adding represents the same record. If
+    // so, we keep the one with the oldValue in it.
+    if (recordWithOldValue && recordRepresentsCurrentMutation(lastRecord))
+      return recordWithOldValue;
+
+    return null;
+  }
+
+  /**
+   * Class used to represent a registered observer.
+   * @param {MutationObserver} observer
+   * @param {Node} target
+   * @param {MutationObserverInit} options
+   * @constructor
+   */
+  function Registration(observer, target, options) {
+    this.observer = observer;
+    this.target = target;
+    this.options = options;
+    this.transientObservedNodes = [];
+  }
+
+  Registration.prototype = {
+    enqueue: function(record) {
+      var records = this.observer.records_;
+      var length = records.length;
+
+      // There are cases where we replace the last record with the new record.
+      // For example if the record represents the same mutation we need to use
+      // the one with the oldValue. If we get same record (this can happen as we
+      // walk up the tree) we ignore the new record.
+      if (records.length > 0) {
+        var lastRecord = records[length - 1];
+        var recordToReplaceLast = selectRecord(lastRecord, record);
+        if (recordToReplaceLast) {
+          records[length - 1] = recordToReplaceLast;
+          return;
+        }
+      } else {
+        scheduleCallback(this.observer);
+      }
+
+      records[length] = record;
+    },
+
+    addListeners: function() {
+      this.addListeners_(this.target);
+    },
+
+    addListeners_: function(node) {
+      var options = this.options;
+      if (options.attributes)
+        node.addEventListener('DOMAttrModified', this, true);
+
+      if (options.characterData)
+        node.addEventListener('DOMCharacterDataModified', this, true);
+
+      if (options.childList)
+        node.addEventListener('DOMNodeInserted', this, true);
+
+      if (options.childList || options.subtree)
+        node.addEventListener('DOMNodeRemoved', this, true);
+    },
+
+    removeListeners: function() {
+      this.removeListeners_(this.target);
+    },
+
+    removeListeners_: function(node) {
+      var options = this.options;
+      if (options.attributes)
+        node.removeEventListener('DOMAttrModified', this, true);
+
+      if (options.characterData)
+        node.removeEventListener('DOMCharacterDataModified', this, true);
+
+      if (options.childList)
+        node.removeEventListener('DOMNodeInserted', this, true);
+
+      if (options.childList || options.subtree)
+        node.removeEventListener('DOMNodeRemoved', this, true);
+    },
+
+    /**
+     * Adds a transient observer on node. The transient observer gets removed
+     * next time we deliver the change records.
+     * @param {Node} node
+     */
+    addTransientObserver: function(node) {
+      // Don't add transient observers on the target itself. We already have all
+      // the required listeners set up on the target.
+      if (node === this.target)
+        return;
+
+      this.addListeners_(node);
+      this.transientObservedNodes.push(node);
+      var registrations = registrationsTable.get(node);
+      if (!registrations)
+        registrationsTable.set(node, registrations = []);
+
+      // We know that registrations does not contain this because we already
+      // checked if node === this.target.
+      registrations.push(this);
+    },
+
+    removeTransientObservers: function() {
+      var transientObservedNodes = this.transientObservedNodes;
+      this.transientObservedNodes = [];
+
+      transientObservedNodes.forEach(function(node) {
+        // Transient observers are never added to the target.
+        this.removeListeners_(node);
+
+        var registrations = registrationsTable.get(node);
+        for (var i = 0; i < registrations.length; i++) {
+          if (registrations[i] === this) {
+            registrations.splice(i, 1);
+            // Each node can only have one registered observer associated with
+            // this observer.
+            break;
+          }
+        }
+      }, this);
+    },
+
+    handleEvent: function(e) {
+      // Stop propagation since we are managing the propagation manually.
+      // This means that other mutation events on the page will not work
+      // correctly but that is by design.
+      e.stopImmediatePropagation();
+
+      switch (e.type) {
+        case 'DOMAttrModified':
+          // http://dom.spec.whatwg.org/#concept-mo-queue-attributes
+
+          var name = e.attrName;
+          var namespace = e.relatedNode.namespaceURI;
+          var target = e.target;
+
+          // 1.
+          var record = new getRecord('attributes', target);
+          record.attributeName = name;
+          record.attributeNamespace = namespace;
+
+          // 2.
+          var oldValue =
+              e.attrChange === MutationEvent.ADDITION ? null : e.prevValue;
+
+          forEachAncestorAndObserverEnqueueRecord(target, function(options) {
+            // 3.1, 4.2
+            if (!options.attributes)
+              return;
+
+            // 3.2, 4.3
+            if (options.attributeFilter && options.attributeFilter.length &&
+                options.attributeFilter.indexOf(name) === -1 &&
+                options.attributeFilter.indexOf(namespace) === -1) {
+              return;
+            }
+            // 3.3, 4.4
+            if (options.attributeOldValue)
+              return getRecordWithOldValue(oldValue);
+
+            // 3.4, 4.5
+            return record;
+          });
+
+          break;
+
+        case 'DOMCharacterDataModified':
+          // http://dom.spec.whatwg.org/#concept-mo-queue-characterdata
+          var target = e.target;
+
+          // 1.
+          var record = getRecord('characterData', target);
+
+          // 2.
+          var oldValue = e.prevValue;
+
+
+          forEachAncestorAndObserverEnqueueRecord(target, function(options) {
+            // 3.1, 4.2
+            if (!options.characterData)
+              return;
+
+            // 3.2, 4.3
+            if (options.characterDataOldValue)
+              return getRecordWithOldValue(oldValue);
+
+            // 3.3, 4.4
+            return record;
+          });
+
+          break;
+
+        case 'DOMNodeRemoved':
+          this.addTransientObserver(e.target);
+          // Fall through.
+        case 'DOMNodeInserted':
+          // http://dom.spec.whatwg.org/#concept-mo-queue-childlist
+          var target = e.relatedNode;
+          var changedNode = e.target;
+          var addedNodes, removedNodes;
+          if (e.type === 'DOMNodeInserted') {
+            addedNodes = [changedNode];
+            removedNodes = [];
+          } else {
+
+            addedNodes = [];
+            removedNodes = [changedNode];
+          }
+          var previousSibling = changedNode.previousSibling;
+          var nextSibling = changedNode.nextSibling;
+
+          // 1.
+          var record = getRecord('childList', target);
+          record.addedNodes = addedNodes;
+          record.removedNodes = removedNodes;
+          record.previousSibling = previousSibling;
+          record.nextSibling = nextSibling;
+
+          forEachAncestorAndObserverEnqueueRecord(target, function(options) {
+            // 2.1, 3.2
+            if (!options.childList)
+              return;
+
+            // 2.2, 3.3
+            return record;
+          });
+
+      }
+
+      clearRecords();
+    }
+  };
+
+  global.JsMutationObserver = JsMutationObserver;
+
+})(this);
+
+if (!window.MutationObserver) {
+  window.MutationObserver =
+      window.WebKitMutationObserver ||
+      window.JsMutationObserver;
+  if (!MutationObserver) {
+    throw new Error("no mutation observer support");
+  }
+}
+
+(function(scope){
+
+var logFlags = window.logFlags || {};
+
+// walk the subtree rooted at node, applying 'find(element, data)' function
+// to each element
+// if 'find' returns true for 'element', do not search element's subtree
+function findAll(node, find, data) {
+  var e = node.firstElementChild;
+  if (!e) {
+    e = node.firstChild;
+    while (e && e.nodeType !== Node.ELEMENT_NODE) {
+      e = e.nextSibling;
+    }
+  }
+  while (e) {
+    if (find(e, data) !== true) {
+      findAll(e, find, data);
+    }
+    e = e.nextElementSibling;
+  }
+  return null;
+}
+
+// walk all shadowRoots on a given node.
+function forRoots(node, cb) {
+  var root = node.shadowRoot;
+  while(root) {
+    forSubtree(root, cb);
+    root = root.olderShadowRoot;
+  }
+}
+
+// walk the subtree rooted at node, including descent into shadow-roots,
+// applying 'cb' to each element
+function forSubtree(node, cb) {
+  //logFlags.dom && node.childNodes && node.childNodes.length && console.group('subTree: ', node);
+  findAll(node, function(e) {
+    if (cb(e)) {
+      return true;
+    }
+    forRoots(e, cb);
+  });
+  forRoots(node, cb);
+  //logFlags.dom && node.childNodes && node.childNodes.length && console.groupEnd();
+}
+
+// manage lifecycle on added node
+function added(node) {
+  if (upgrade(node)) {
+    insertedNode(node);
+    return true;
+  }
+  inserted(node);
+}
+
+// manage lifecycle on added node's subtree only
+function addedSubtree(node) {
+  forSubtree(node, function(e) {
+    if (added(e)) {
+      return true;
+    }
+  });
+}
+
+// manage lifecycle on added node and it's subtree
+function addedNode(node) {
+  return added(node) || addedSubtree(node);
+}
+
+// upgrade custom elements at node, if applicable
+function upgrade(node) {
+  if (!node.__upgraded__ && node.nodeType === Node.ELEMENT_NODE) {
+    var type = node.getAttribute('is') || node.localName;
+    var definition = scope.registry[type];
+    if (definition) {
+      logFlags.dom && console.group('upgrade:', node.localName);
+      scope.upgrade(node);
+      logFlags.dom && console.groupEnd();
+      return true;
+    }
+  }
+}
+
+function insertedNode(node) {
+  inserted(node);
+  if (inDocument(node)) {
+    forSubtree(node, function(e) {
+      inserted(e);
+    });
+  }
+}
+
+
+// TODO(sorvell): on platforms without MutationObserver, mutations may not be
+// reliable and therefore entered/leftView are not reliable.
+// To make these callbacks less likely to fail, we defer all inserts and removes
+// to give a chance for elements to be inserted into dom.
+// This ensures enteredViewCallback fires for elements that are created and
+// immediately added to dom.
+var hasPolyfillMutations = (!window.MutationObserver ||
+    (window.MutationObserver === window.JsMutationObserver));
+scope.hasPolyfillMutations = hasPolyfillMutations;
+
+var isPendingMutations = false;
+var pendingMutations = [];
+function deferMutation(fn) {
+  pendingMutations.push(fn);
+  if (!isPendingMutations) {
+    isPendingMutations = true;
+    var async = (window.Platform && window.Platform.endOfMicrotask) ||
+        setTimeout;
+    async(takeMutations);
+  }
+}
+
+function takeMutations() {
+  isPendingMutations = false;
+  var $p = pendingMutations;
+  for (var i=0, l=$p.length, p; (i<l) && (p=$p[i]); i++) {
+    p();
+  }
+  pendingMutations = [];
+}
+
+function inserted(element) {
+  if (hasPolyfillMutations) {
+    deferMutation(function() {
+      _inserted(element);
+    });
+  } else {
+    _inserted(element);
+  }
+}
+
+// TODO(sjmiles): if there are descents into trees that can never have inDocument(*) true, fix this
+function _inserted(element) {
+  // TODO(sjmiles): it's possible we were inserted and removed in the space
+  // of one microtask, in which case we won't be 'inDocument' here
+  // But there are other cases where we are testing for inserted without
+  // specific knowledge of mutations, and must test 'inDocument' to determine
+  // whether to call inserted
+  // If we can factor these cases into separate code paths we can have
+  // better diagnostics.
+  // TODO(sjmiles): when logging, do work on all custom elements so we can
+  // track behavior even when callbacks not defined
+  //console.log('inserted: ', element.localName);
+  if (element.enteredViewCallback || (element.__upgraded__ && logFlags.dom)) {
+    logFlags.dom && console.group('inserted:', element.localName);
+    if (inDocument(element)) {
+      element.__inserted = (element.__inserted || 0) + 1;
+      // if we are in a 'removed' state, bluntly adjust to an 'inserted' state
+      if (element.__inserted < 1) {
+        element.__inserted = 1;
+      }
+      // if we are 'over inserted', squelch the callback
+      if (element.__inserted > 1) {
+        logFlags.dom && console.warn('inserted:', element.localName,
+          'insert/remove count:', element.__inserted)
+      } else if (element.enteredViewCallback) {
+        logFlags.dom && console.log('inserted:', element.localName);
+        element.enteredViewCallback();
+      }
+    }
+    logFlags.dom && console.groupEnd();
+  }
+}
+
+function removedNode(node) {
+  removed(node);
+  forSubtree(node, function(e) {
+    removed(e);
+  });
+}
+
+
+function removed(element) {
+  if (hasPolyfillMutations) {
+    deferMutation(function() {
+      _removed(element);
+    });
+  } else {
+    _removed(element);
+  }
+}
+
+function removed(element) {
+  // TODO(sjmiles): temporary: do work on all custom elements so we can track
+  // behavior even when callbacks not defined
+  if (element.leftViewCallback || (element.__upgraded__ && logFlags.dom)) {
+    logFlags.dom && console.log('removed:', element.localName);
+    if (!inDocument(element)) {
+      element.__inserted = (element.__inserted || 0) - 1;
+      // if we are in a 'inserted' state, bluntly adjust to an 'removed' state
+      if (element.__inserted > 0) {
+        element.__inserted = 0;
+      }
+      // if we are 'over removed', squelch the callback
+      if (element.__inserted < 0) {
+        logFlags.dom && console.warn('removed:', element.localName,
+            'insert/remove count:', element.__inserted)
+      } else if (element.leftViewCallback) {
+        element.leftViewCallback();
+      }
+    }
+  }
+}
+
+function inDocument(element) {
+  var p = element;
+  var doc = window.ShadowDOMPolyfill &&
+      window.ShadowDOMPolyfill.wrapIfNeeded(document) || document;
+  while (p) {
+    if (p == doc) {
+      return true;
+    }
+    p = p.parentNode || p.host;
+  }
+}
+
+function watchShadow(node) {
+  if (node.shadowRoot && !node.shadowRoot.__watched) {
+    logFlags.dom && console.log('watching shadow-root for: ', node.localName);
+    // watch all unwatched roots...
+    var root = node.shadowRoot;
+    while (root) {
+      watchRoot(root);
+      root = root.olderShadowRoot;
+    }
+  }
+}
+
+function watchRoot(root) {
+  if (!root.__watched) {
+    observe(root);
+    root.__watched = true;
+  }
+}
+
+function filter(inNode) {
+  switch (inNode.localName) {
+    case 'style':
+    case 'script':
+    case 'template':
+    case undefined:
+      return true;
+  }
+}
+
+function handler(mutations) {
+  //
+  if (logFlags.dom) {
+    var mx = mutations[0];
+    if (mx && mx.type === 'childList' && mx.addedNodes) {
+        if (mx.addedNodes) {
+          var d = mx.addedNodes[0];
+          while (d && d !== document && !d.host) {
+            d = d.parentNode;
+          }
+          var u = d && (d.URL || d._URL || (d.host && d.host.localName)) || '';
+          u = u.split('/?').shift().split('/').pop();
+        }
+    }
+    console.group('mutations (%d) [%s]', mutations.length, u || '');
+  }
+  //
+  mutations.forEach(function(mx) {
+    //logFlags.dom && console.group('mutation');
+    if (mx.type === 'childList') {
+      forEach(mx.addedNodes, function(n) {
+        //logFlags.dom && console.log(n.localName);
+        if (filter(n)) {
+          return;
+        }
+        // nodes added may need lifecycle management
+        addedNode(n);
+      });
+      // removed nodes may need lifecycle management
+      forEach(mx.removedNodes, function(n) {
+        //logFlags.dom && console.log(n.localName);
+        if (filter(n)) {
+          return;
+        }
+        removedNode(n);
+      });
+    }
+    //logFlags.dom && console.groupEnd();
+  });
+  logFlags.dom && console.groupEnd();
+};
+
+var observer = new MutationObserver(handler);
+
+function takeRecords() {
+  // TODO(sjmiles): ask Raf why we have to call handler ourselves
+  handler(observer.takeRecords());
+  takeMutations();
+}
+
+var forEach = Array.prototype.forEach.call.bind(Array.prototype.forEach);
+
+function observe(inRoot) {
+  observer.observe(inRoot, {childList: true, subtree: true});
+}
+
+function observeDocument(document) {
+  observe(document);
+}
+
+function upgradeDocument(document) {
+  logFlags.dom && console.group('upgradeDocument: ', (document.URL || document._URL || '').split('/').pop());
+  addedNode(document);
+  logFlags.dom && console.groupEnd();
+}
+
+// exports
+
+scope.watchShadow = watchShadow;
+scope.upgradeAll = addedNode;
+scope.upgradeSubtree = addedSubtree;
+
+scope.observeDocument = observeDocument;
+scope.upgradeDocument = upgradeDocument;
+
+scope.takeRecords = takeRecords;
+
+})(window.CustomElements);
+
+/**
+ * Implements `document.register`
+ * @module CustomElements
+*/
+
+/**
+ * Polyfilled extensions to the `document` object.
+ * @class Document
+*/
+
+(function(scope) {
+
+// imports
+
+if (!scope) {
+  scope = window.CustomElements = {flags:{}};
+}
+var flags = scope.flags;
+
+// native document.register?
+
+var hasNative = Boolean(document.register);
+var useNative = !flags.register && hasNative;
+
+if (useNative) {
+
+  // stub
+  var nop = function() {};
+
+  // exports
+  scope.registry = {};
+  scope.upgradeElement = nop;
+
+  scope.watchShadow = nop;
+  scope.upgrade = nop;
+  scope.upgradeAll = nop;
+  scope.upgradeSubtree = nop;
+  scope.observeDocument = nop;
+  scope.upgradeDocument = nop;
+  scope.takeRecords = nop;
+
+} else {
+
+  /**
+   * Registers a custom tag name with the document.
+   *
+   * When a registered element is created, a `readyCallback` method is called
+   * in the scope of the element. The `readyCallback` method can be specified on
+   * either `options.prototype` or `options.lifecycle` with the latter taking
+   * precedence.
+   *
+   * @method register
+   * @param {String} name The tag name to register. Must include a dash ('-'),
+   *    for example 'x-component'.
+   * @param {Object} options
+   *    @param {String} [options.extends]
+   *      (_off spec_) Tag name of an element to extend (or blank for a new
+   *      element). This parameter is not part of the specification, but instead
+   *      is a hint for the polyfill because the extendee is difficult to infer.
+   *      Remember that the input prototype must chain to the extended element's
+   *      prototype (or HTMLElement.prototype) regardless of the value of
+   *      `extends`.
+   *    @param {Object} options.prototype The prototype to use for the new
+   *      element. The prototype must inherit from HTMLElement.
+   *    @param {Object} [options.lifecycle]
+   *      Callbacks that fire at important phases in the life of the custom
+   *      element.
+   *
+   * @example
+   *      FancyButton = document.register("fancy-button", {
+   *        extends: 'button',
+   *        prototype: Object.create(HTMLButtonElement.prototype, {
+   *          readyCallback: {
+   *            value: function() {
+   *              console.log("a fancy-button was created",
+   *            }
+   *          }
+   *        })
+   *      });
+   * @return {Function} Constructor for the newly registered type.
+   */
+  function register(name, options) {
+    //console.warn('document.register("' + name + '", ', options, ')');
+    // construct a defintion out of options
+    // TODO(sjmiles): probably should clone options instead of mutating it
+    var definition = options || {};
+    if (!name) {
+      // TODO(sjmiles): replace with more appropriate error (EricB can probably
+      // offer guidance)
+      throw new Error('document.register: first argument `name` must not be empty');
+    }
+    if (name.indexOf('-') < 0) {
+      // TODO(sjmiles): replace with more appropriate error (EricB can probably
+      // offer guidance)
+      throw new Error('document.register: first argument (\'name\') must contain a dash (\'-\'). Argument provided was \'' + String(name) + '\'.');
+    }
+    // record name
+    definition.name = name;
+    // must have a prototype, default to an extension of HTMLElement
+    // TODO(sjmiles): probably should throw if no prototype, check spec
+    if (!definition.prototype) {
+      // TODO(sjmiles): replace with more appropriate error (EricB can probably
+      // offer guidance)
+      throw new Error('Options missing required prototype property');
+    }
+    // ensure a lifecycle object so we don't have to null test it
+    definition.lifecycle = definition.lifecycle || {};
+    // build a list of ancestral custom elements (for native base detection)
+    // TODO(sjmiles): we used to need to store this, but current code only
+    // uses it in 'resolveTagName': it should probably be inlined
+    definition.ancestry = ancestry(definition.extends);
+    // extensions of native specializations of HTMLElement require localName
+    // to remain native, and use secondary 'is' specifier for extension type
+    resolveTagName(definition);
+    // some platforms require modifications to the user-supplied prototype
+    // chain
+    resolvePrototypeChain(definition);
+    // overrides to implement attributeChanged callback
+    overrideAttributeApi(definition.prototype);
+    // 7.1.5: Register the DEFINITION with DOCUMENT
+    registerDefinition(name, definition);
+    // 7.1.7. Run custom element constructor generation algorithm with PROTOTYPE
+    // 7.1.8. Return the output of the previous step.
+    definition.ctor = generateConstructor(definition);
+    definition.ctor.prototype = definition.prototype;
+    // force our .constructor to be our actual constructor
+    definition.prototype.constructor = definition.ctor;
+    // if initial parsing is complete
+    if (scope.ready || scope.performedInitialDocumentUpgrade) {
+      // upgrade any pre-existing nodes of this type
+      scope.upgradeAll(document);
+    }
+    return definition.ctor;
+  }
+
+  function ancestry(extnds) {
+    var extendee = registry[extnds];
+    if (extendee) {
+      return ancestry(extendee.extends).concat([extendee]);
+    }
+    return [];
+  }
+
+  function resolveTagName(definition) {
+    // if we are explicitly extending something, that thing is our
+    // baseTag, unless it represents a custom component
+    var baseTag = definition.extends;
+    // if our ancestry includes custom components, we only have a
+    // baseTag if one of them does
+    for (var i=0, a; (a=definition.ancestry[i]); i++) {
+      baseTag = a.is && a.tag;
+    }
+    // our tag is our baseTag, if it exists, and otherwise just our name
+    definition.tag = baseTag || definition.name;
+    if (baseTag) {
+      // if there is a base tag, use secondary 'is' specifier
+      definition.is = definition.name;
+    }
+  }
+
+  function resolvePrototypeChain(definition) {
+    // if we don't support __proto__ we need to locate the native level
+    // prototype for precise mixing in
+    if (!Object.__proto__) {
+      // default prototype
+      var nativePrototype = HTMLElement.prototype;
+      // work out prototype when using type-extension
+      if (definition.is) {
+        var inst = document.createElement(definition.tag);
+        nativePrototype = Object.getPrototypeOf(inst);
+      }
+      // ensure __proto__ reference is installed at each point on the prototype
+      // chain.
+      // NOTE: On platforms without __proto__, a mixin strategy is used instead
+      // of prototype swizzling. In this case, this generated __proto__ provides
+      // limited support for prototype traversal.
+      var proto = definition.prototype, ancestor;
+      while (proto && (proto !== nativePrototype)) {
+        var ancestor = Object.getPrototypeOf(proto);
+        proto.__proto__ = ancestor;
+        proto = ancestor;
+      }
+    }
+    // cache this in case of mixin
+    definition.native = nativePrototype;
+  }
+
+  // SECTION 4
+
+  function instantiate(definition) {
+    // 4.a.1. Create a new object that implements PROTOTYPE
+    // 4.a.2. Let ELEMENT by this new object
+    //
+    // the custom element instantiation algorithm must also ensure that the
+    // output is a valid DOM element with the proper wrapper in place.
+    //
+    return upgrade(domCreateElement(definition.tag), definition);
+  }
+
+  function upgrade(element, definition) {
+    // some definitions specify an 'is' attribute
+    if (definition.is) {
+      element.setAttribute('is', definition.is);
+    }
+    // make 'element' implement definition.prototype
+    implement(element, definition);
+    // flag as upgraded
+    element.__upgraded__ = true;
+    // there should never be a shadow root on element at this point
+    // we require child nodes be upgraded before `created`
+    scope.upgradeSubtree(element);
+    // lifecycle management
+    created(element);
+    // OUTPUT
+    return element;
+  }
+
+  function implement(element, definition) {
+    // prototype swizzling is best
+    if (Object.__proto__) {
+      element.__proto__ = definition.prototype;
+    } else {
+      // where above we can re-acquire inPrototype via
+      // getPrototypeOf(Element), we cannot do so when
+      // we use mixin, so we install a magic reference
+      customMixin(element, definition.prototype, definition.native);
+      element.__proto__ = definition.prototype;
+    }
+  }
+
+  function customMixin(inTarget, inSrc, inNative) {
+    // TODO(sjmiles): 'used' allows us to only copy the 'youngest' version of
+    // any property. This set should be precalculated. We also need to
+    // consider this for supporting 'super'.
+    var used = {};
+    // start with inSrc
+    var p = inSrc;
+    // sometimes the default is HTMLUnknownElement.prototype instead of
+    // HTMLElement.prototype, so we add a test
+    // the idea is to avoid mixing in native prototypes, so adding
+    // the second test is WLOG
+    while (p && p !== inNative && p !== HTMLUnknownElement.prototype) {
+      var keys = Object.getOwnPropertyNames(p);
+      for (var i=0, k; k=keys[i]; i++) {
+        if (!used[k]) {
+          Object.defineProperty(inTarget, k,
+              Object.getOwnPropertyDescriptor(p, k));
+          used[k] = 1;
+        }
+      }
+      p = Object.getPrototypeOf(p);
+    }
+  }
+
+  function created(element) {
+    // invoke createdCallback
+    if (element.createdCallback) {
+      element.createdCallback();
+    }
+  }
+
+  // attribute watching
+
+  function overrideAttributeApi(prototype) {
+    // overrides to implement callbacks
+    // TODO(sjmiles): should support access via .attributes NamedNodeMap
+    // TODO(sjmiles): preserves user defined overrides, if any
+    var setAttribute = prototype.setAttribute;
+    prototype.setAttribute = function(name, value) {
+      changeAttribute.call(this, name, value, setAttribute);
+    }
+    var removeAttribute = prototype.removeAttribute;
+    prototype.removeAttribute = function(name) {
+      changeAttribute.call(this, name, null, removeAttribute);
+    }
+  }
+
+  function changeAttribute(name, value, operation) {
+    var oldValue = this.getAttribute(name);
+    operation.apply(this, arguments);
+    if (this.attributeChangedCallback
+        && (this.getAttribute(name) !== oldValue)) {
+      this.attributeChangedCallback(name, oldValue, value);
+    }
+  }
+
+  // element registry (maps tag names to definitions)
+
+  var registry = {};
+
+  function registerDefinition(name, definition) {
+    if (registry[name]) {
+      throw new Error('Cannot register a tag more than once');
+    }
+    registry[name] = definition;
+  }
+
+  function generateConstructor(definition) {
+    return function() {
+      return instantiate(definition);
+    };
+  }
+
+  function createElement(tag, typeExtension) {
+    var definition = registry[typeExtension || tag];
+    if (definition) {
+      if (tag == definition.tag && typeExtension == definition.is) {
+        return new definition.ctor();
+      }
+      // Handle empty string for type extension.
+      if (!typeExtension && !definition.is) {
+        return new definition.ctor();
+      }
+    }
+
+    if (typeExtension) {
+      var element = createElement(tag);
+      element.setAttribute('is', typeExtension);
+      return element;
+    }
+    var element = domCreateElement(tag);
+    // Custom tags should be HTMLElements even if not upgraded.
+    if (tag.indexOf('-') >= 0) {
+      implement(element, HTMLElement);
+    }
+    return element;
+  }
+
+  function upgradeElement(element) {
+    if (!element.__upgraded__ && (element.nodeType === Node.ELEMENT_NODE)) {
+      var is = element.getAttribute('is');
+      var definition = registry[is || element.localName];
+      if (definition) {
+        if (is && definition.tag == element.localName) {
+          return upgrade(element, definition);
+        } else if (!is && !definition.extends) {
+          return upgrade(element, definition);
+        }
+      }
+    }
+  }
+
+  function cloneNode(deep) {
+    // call original clone
+    var n = domCloneNode.call(this, deep);
+    // upgrade the element and subtree
+    scope.upgradeAll(n);
+    // return the clone
+    return n;
+  }
+  // capture native createElement before we override it
+
+  var domCreateElement = document.createElement.bind(document);
+
+  // capture native cloneNode before we override it
+
+  var domCloneNode = Node.prototype.cloneNode;
+
+  // exports
+
+  document.register = register;
+  document.createElement = createElement; // override
+  Node.prototype.cloneNode = cloneNode; // override
+
+  scope.registry = registry;
+
+  /**
+   * Upgrade an element to a custom element. Upgrading an element
+   * causes the custom prototype to be applied, an `is` attribute
+   * to be attached (as needed), and invocation of the `readyCallback`.
+   * `upgrade` does nothing if the element is already upgraded, or
+   * if it matches no registered custom tag name.
+   *
+   * @method ugprade
+   * @param {Element} element The element to upgrade.
+   * @return {Element} The upgraded element.
+   */
+  scope.upgrade = upgradeElement;
+}
+
+scope.hasNative = hasNative;
+scope.useNative = useNative;
+
+})(window.CustomElements);
+
+(function() {
+
+// import
+
+var IMPORT_LINK_TYPE = window.HTMLImports ? HTMLImports.IMPORT_LINK_TYPE : 'none';
+
+// highlander object for parsing a document tree
+
+var parser = {
+  selectors: [
+    'link[rel=' + IMPORT_LINK_TYPE + ']'
+  ],
+  map: {
+    link: 'parseLink'
+  },
+  parse: function(inDocument) {
+    if (!inDocument.__parsed) {
+      // only parse once
+      inDocument.__parsed = true;
+      // all parsable elements in inDocument (depth-first pre-order traversal)
+      var elts = inDocument.querySelectorAll(parser.selectors);
+      // for each parsable node type, call the mapped parsing method
+      forEach(elts, function(e) {
+        parser[parser.map[e.localName]](e);
+      });
+      // upgrade all upgradeable static elements, anything dynamically
+      // created should be caught by observer
+      CustomElements.upgradeDocument(inDocument);
+      // observe document for dom changes
+      CustomElements.observeDocument(inDocument);
+    }
+  },
+  parseLink: function(linkElt) {
+    // imports
+    if (isDocumentLink(linkElt)) {
+      this.parseImport(linkElt);
+    }
+  },
+  parseImport: function(linkElt) {
+    if (linkElt.content) {
+      parser.parse(linkElt.content);
+    }
+  }
+};
+
+function isDocumentLink(inElt) {
+  return (inElt.localName === 'link'
+      && inElt.getAttribute('rel') === IMPORT_LINK_TYPE);
+}
+
+var forEach = Array.prototype.forEach.call.bind(Array.prototype.forEach);
+
+// exports
+
+CustomElements.parser = parser;
+
+})();
+(function(){
+
+// bootstrap parsing
+function bootstrap() {
+  // parse document
+  CustomElements.parser.parse(document);
+  // one more pass before register is 'live'
+  CustomElements.upgradeDocument(document);
+  CustomElements.performedInitialDocumentUpgrade = true;
+  // choose async
+  var async = window.Platform && Platform.endOfMicrotask ?
+    Platform.endOfMicrotask :
+    setTimeout;
+  async(function() {
+    // set internal 'ready' flag, now document.register will trigger
+    // synchronous upgrades
+    CustomElements.ready = true;
+    // capture blunt profiling data
+    CustomElements.readyTime = Date.now();
+    if (window.HTMLImports) {
+      CustomElements.elapsed = CustomElements.readyTime - HTMLImports.readyTime;
+    }
+    // notify the system that we are bootstrapped
+    document.body.dispatchEvent(
+      new CustomEvent('WebComponentsReady', {bubbles: true})
+    );
+  });
+}
+
+// CustomEvent shim for IE
+if (typeof window.CustomEvent !== 'function') {
+  window.CustomEvent = function(inType) {
+     var e = document.createEvent('HTMLEvents');
+     e.initEvent(inType, true, true);
+     return e;
+  };
+}
+
+if (document.readyState === 'complete') {
+  bootstrap();
+} else {
+  var loadEvent = window.HTMLImports ? 'HTMLImportsLoaded' :
+      document.readyState == 'loading' ? 'DOMContentLoaded' : 'load';
+  window.addEventListener(loadEvent, bootstrap);
+}
+
+})();
+
+(function() {
+// Patch to allow custom element and shadow dom to work together, from:
+// https://github.com/Polymer/platform/blob/master/src/patches-shadowdom-polyfill.js
+// include .host reference
+if (HTMLElement.prototype.createShadowRoot) {
+  var originalCreateShadowRoot = HTMLElement.prototype.createShadowRoot;
+  HTMLElement.prototype.createShadowRoot = function() {
+    var root = originalCreateShadowRoot.call(this);
+    root.host = this;
+    return root;
+  }
+}
+
+
+// Patch to allow custom elements and shadow dom to work together, from:
+// https://github.com/Polymer/platform/blob/master/src/patches-custom-elements.js
+if (window.ShadowDOMPolyfill) {
+  function nop() {};
+
+  // disable shadow dom watching
+  CustomElements.watchShadow = nop;
+  CustomElements.watchAllShadows = nop;
+
+  // ensure wrapped inputs for these functions
+  var fns = ['upgradeAll', 'upgradeSubtree', 'observeDocument',
+      'upgradeDocument'];
+
+  // cache originals
+  var original = {};
+  fns.forEach(function(fn) {
+    original[fn] = CustomElements[fn];
+  });
+
+  // override
+  fns.forEach(function(fn) {
+    CustomElements[fn] = function(inNode) {
+      return original[fn](ShadowDOMPolyfill.wrapIfNeeded(inNode));
+    };
+  });
+}
+
+})();
+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+// Type for remote proxies to Dart objects with dart2js.
+// WARNING: do not call this constructor or rely on it being
+// in the global namespace, as it may be removed.
+function DartObject(o) {
+  this.o = o;
+}
+// Generated by dart2js, the Dart to JavaScript compiler version: 1.0.0.3_r30188.
+(function($){var A={}
+delete A.x
+var B={}
+delete B.x
+var C={}
+delete C.x
+var D={}
+delete D.x
+var E={}
+delete E.x
+var F={}
+delete F.x
+var G={}
+delete G.x
+var H={}
+delete H.x
+var J={}
+delete J.x
+var K={}
+delete K.x
+var L={}
+delete L.x
+var M={}
+delete M.x
+var N={}
+delete N.x
+var O={}
+delete O.x
+var P={}
+delete P.x
+var Q={}
+delete Q.x
+var R={}
+delete R.x
+var S={}
+delete S.x
+var T={}
+delete T.x
+var U={}
+delete U.x
+var V={}
+delete V.x
+var W={}
+delete W.x
+var X={}
+delete X.x
+var Y={}
+delete Y.x
+var Z={}
+delete Z.x
+function I(){}
+init()
+$=I.p
+var $$={}
+$$.YP=[H,{"":"v;wc,nn,lv,Pp",
+call$0:function(){return this.nn.call(this.wc,this.lv)},
+$is_X0:true}]
+$$.Pm=[H,{"":"v;wc,nn,lv,Pp",
+call$1:function(a){return this.nn.call(this.wc,a)},
+$is_HB:true,
+$is_Dv:true}]
+$$.Ip=[P,{"":"v;wc,nn,lv,Pp",
+call$0:function(){return this.nn.call(this.wc)},
+$is_X0:true}]
+$$.C7=[P,{"":"v;wc,nn,lv,Pp",
+call$1:function(a){return this.nn.call(this.wc,this.lv,a)},
+$is_HB:true,
+$is_Dv:true}]
+$$.CQ=[P,{"":"v;wc,nn,lv,Pp",
+call$2:function(a,b){return this.nn.call(this.wc,a,b)},
+call$1:function(a){return this.call$2(a,null)},
+"+call:1:0":0,
+$is_bh:true,
+$is_HB:true,
+$is_Dv:true}]
+$$.bq=[P,{"":"v;wc,nn,lv,Pp",
+call$2:function(a,b){return this.nn.call(this.wc,a,b)},
+$is_bh:true}]
+$$.Y7=[A,{"":"v;wc,nn,lv,Pp",
+call$2:function(a,b){return this.nn.call(this.wc,this.lv,a,b)},
+$is_bh:true}]
+$$.Dw=[T,{"":"v;wc,nn,lv,Pp",
+call$3:function(a,b,c){return this.nn.call(this.wc,a,b,c)}}]
+$$.zy=[H,{"":"Tp;call$2,$name",$is_bh:true}]
+$$.Nb=[H,{"":"Tp;call$1,$name",$is_HB:true,$is_Dv:true}]
+$$.Fy=[H,{"":"Tp;call$0,$name",$is_X0:true}]
+$$.eU=[H,{"":"Tp;call$7,$name"}]
+$$.ADW=[P,{"":"Tp;call$2,$name",
+call$1:function(a){return this.call$2(a,null)},
+"+call:1:0":0,
+$is_bh:true,
+$is_HB:true,
+$is_Dv:true}]
+$$.Ri=[P,{"":"Tp;call$5,$name"}]
+$$.kq=[P,{"":"Tp;call$4,$name"}]
+$$.Ag=[P,{"":"Tp;call$6,$name"}]
+$$.PW=[P,{"":"Tp;call$3$onError$radix,$name",
+call$1:function(a){return this.call$3$onError$radix(a,null,null)},
+"+call:1:0":0,
+call$2$onError:function(a,b){return this.call$3$onError$radix(a,b,null)},
+"+call:2:0:onError":0,
+call$catchAll:function(){return{onError:null,radix:null}},
+$is_HB:true,
+$is_Dv:true}]
+;init.mangledNames={gB:"length",gDb:"_cachedDeclarations",gEI:"prefix",gF1:"isolate",gFF:"source",gFJ:"__$cls",gFT:"__$instruction",gFU:"_cachedMethodsMap",gG1:"message",gH8:"_fieldsDescriptor",gHt:"_fieldsMetadata",gKM:"$",gLA:"src",gLf:"__$field",gLy:"_cachedSetters",gM2:"_cachedVariables",gMj:"function",gNI:"instruction",gNl:"script",gO3:"url",gOk:"_cachedMetadata",gP:"value",gP2:"_collapsed",gPw:"__$isolate",gPy:"__$error",gQG:"app",gRu:"cls",gT1:"_cachedGetters",gTn:"json",gTx:"_jsConstructorOrInterceptor",gUF:"_cachedTypeVariables",gUz:"__$script",gV4:"__$trace",gVA:"__$displayValue",gVB:"error_obj",gWL:"_mangledName",gXB:"_message",gXJ:"lines",gXR:"scripts",gXf:"__$iconClass",gXh:"__$instance",gZ6:"locationManager",gZw:"__$code",ga:"a",gai:"displayValue",gb:"b",gb0:"_cachedConstructors",gcC:"hash",geV:"paddedLine",geb:"__$json",gfY:"kind",ghO:"__$error_obj",ghf:"instance",gi0:"__$name",gi2:"isolates",giI:"__$library",giK:"__$instance",gjO:"id",gjd:"_cachedMethods",gk5:"__$devtools",gkc:"error",gkf:"_count",gl7:"iconClass",glD:"currentHashUri",gle:"_metadata",glw:"requestManager",gn2:"responses",gnI:"isolateManager",gnz:"_owner",goc:"name",gpz:"_jsConstructorCache",gqN:"_superclass",gql:"__$function",gqm:"_cachedSuperinterfaces",gt0:"field",gtB:"_cachedFields",gtD:"library",gtH:"__$app",gtN:"trace",gtT:"code",guA:"_cachedMembers",gvH:"index",gvX:"__$source",gvt:"__$field",gxj:"collapsed",gzd:"currentHash",gzj:"devtools"};init.mangledGlobalNames={DI:"_closeIconClass",Vl:"_openIconClass"};(function (reflectionData) {
+  function map(x){x={x:x};delete x.x;return x}
+  if (!init.libraries) init.libraries = [];
+  if (!init.mangledNames) init.mangledNames = map();
+  if (!init.mangledGlobalNames) init.mangledGlobalNames = map();
+  if (!init.statics) init.statics = map();
+  if (!init.typeInformation) init.typeInformation = map();
+  if (!init.globalFunctions) init.globalFunctions = map();
+  var libraries = init.libraries;
+  var mangledNames = init.mangledNames;
+  var mangledGlobalNames = init.mangledGlobalNames;
+  var hasOwnProperty = Object.prototype.hasOwnProperty;
+  var length = reflectionData.length;
+  for (var i = 0; i < length; i++) {
+    var data = reflectionData[i];
+    var name = data[0];
+    var uri = data[1];
+    var metadata = data[2];
+    var globalObject = data[3];
+    var descriptor = data[4];
+    var isRoot = !!data[5];
+    var fields = descriptor && descriptor[""];
+    var classes = [];
+    var functions = [];
+    function processStatics(descriptor) {
+      for (var property in descriptor) {
+        if (!hasOwnProperty.call(descriptor, property)) continue;
+        if (property === "") continue;
+        var element = descriptor[property];
+        var firstChar = property.substring(0, 1);
+        var previousProperty;
+        if (firstChar === "+") {
+          mangledGlobalNames[previousProperty] = property.substring(1);
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+C.jN=J.PE.prototype
+C.CD=J.P.prototype
+C.xB=J.O.prototype
+C.Mc=function(hooks) {
+  if (typeof dartExperimentalFixupGetTag != "function") return hooks;
+  hooks.getTag = dartExperimentalFixupGetTag(hooks.getTag);
+}
+C.dE=function(hooks) {
+  var userAgent = typeof navigator == "object" ? navigator.userAgent : "";
+  if (userAgent.indexOf("Firefox") == -1) return hooks;
+  var getTag = hooks.getTag;
+  var quickMap = {
+    "BeforeUnloadEvent": "Event",
+    "DataTransfer": "Clipboard",
+    "GeoGeolocation": "Geolocation",
+    "WorkerMessageEvent": "MessageEvent",
+    "XMLDocument": "Document"};
+  function getTagFirefox(o) {
+    var tag = getTag(o);
+    return quickMap[tag] || tag;
+  }
+  hooks.getTag = getTagFirefox;
+}
+C.Mo=function getTagFallback(o) {
+  if (o == null) return "Null";
+  var constructor = o.constructor;
+  if (typeof constructor == "function") {
+    var name = constructor.builtin$cls;
+    if (typeof name == "string") return name;
+    name = constructor.name;
+    if (typeof name == "string"
+        && name !== ""
+        && name !== "Object"
+        && name !== "Function.prototype") {
+      return name;
+    }
+  }
+  var s = Object.prototype.toString.call(o);
+  return s.substring(8, s.length - 1);
+}
+C.dK=function(getTagFallback) {
+  return function(hooks) {
+    if (typeof navigator != "object") return hooks;
+    var userAgent = navigator.userAgent;
+    if (userAgent.indexOf("Chrome") >= 0 ||
+        userAgent.indexOf("DumpRenderTree") >= 0) {
+      return hooks;
+    }
+    hooks.getTag = getTagFallback;
+  };
+}
+C.XQ=function(hooks) { return hooks; }
+
+C.HX=function() {
+  function typeNameInChrome(obj) { return obj.constructor.name; }
+  function getUnknownTag(object, tag) {
+    if (/^HTML[A-Z].*Element$/.test(tag)) {
+      var name = Object.prototype.toString.call(object);
+      if (name == "[object Object]") return null;
+      return "HTMLElement";
+    }
+  }
+  function getUnknownTagGenericBrowser(object, tag) {
+    if (object instanceof HTMLElement) return "HTMLElement";
+    return getUnknownTag(object, tag);
+  }
+  function prototypeForTag(tag) {
+    if (typeof window == "undefined") return null;
+    if (typeof window[tag] == "undefined") return null;
+    var constructor = window[tag];
+    if (typeof constructor != "function") return null;
+    return constructor.prototype;
+  }
+  function discriminator(tag) { return null; }
+  var isBrowser = typeof navigator == "object";
+  return {
+    getTag: typeNameInChrome,
+    getUnknownTag: isBrowser ? getUnknownTagGenericBrowser : getUnknownTag,
+    prototypeForTag: prototypeForTag,
+    discriminator: discriminator };
+}
+C.i7=    ((typeof version == "function" && typeof os == "object" && "system" in os)
+    || (typeof navigator == "object"
+        && navigator.userAgent.indexOf('Chrome') != -1))
+        ? function(x) { return x.$dartCachedLength || x.length; }
+        : function(x) { return x.length; };
+
+C.Px=function(hooks) {
+  var userAgent = typeof navigator == "object" ? navigator.userAgent : "";
+  if (userAgent.indexOf("Trident/") == -1) return hooks;
+  var getTag = hooks.getTag;
+  var quickMap = {
+    "BeforeUnloadEvent": "Event",
+    "DataTransfer": "Clipboard",
+    "HTMLDDElement": "HTMLElement",
+    "HTMLDTElement": "HTMLElement",
+    "HTMLPhraseElement": "HTMLElement",
+    "Position": "Geoposition"
+  };
+  function getTagIE(o) {
+    var tag = getTag(o);
+    var newTag = quickMap[tag];
+    if (newTag) return newTag;
+    if (tag == "Document") {
+      if (!!o.xmlVersion) return "!Document";
+      return "!HTMLDocument";
+    }
+    if (tag == "Object") {
+      if (window.DataView && (o instanceof window.DataView)) return "DataView";
+    }
+    return tag;
+  }
+  function prototypeForTagIE(tag) {
+    if (tag == "Document") return null;
+    var constructor = window[tag];
+    if (constructor == null) return null;
+    return constructor.prototype;
+  }
+  hooks.getTag = getTagIE;
+  hooks.prototypeForTag = prototypeForTagIE;
+}
+C.A3=new P.QM(null)
+C.Ap=new P.dI(null)
+C.GB=Z.vj.prototype
+C.VZ=new N.Ng("FINER",400)
+C.R5=new N.Ng("FINE",500)
+C.IF=new N.Ng("INFO",800)
+C.UP=new N.Ng("WARNING",900)
+C.MG=M.CX.prototype
+I.makeConstantList = function(list) {
+  list.immutable$list = true;
+  list.fixed$length = true;
+  return list;
+};
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+C.HE=I.makeConstantList([0,0,26624,1023,0,0,65534,2047])
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+C.hU=H.VM(I.makeConstantList([]),[P.L9u])
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+C.Qy=I.makeConstantList(["in","this"])
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+C.iq=I.makeConstantList([40,41,91,93,123,125])
+C.zJ=I.makeConstantList(["caption","col","colgroup","option","optgroup","tbody","td","tfoot","th","thead","tr"])
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+C.FS=new H.LP(16,{webkitanimationstart:"webkitAnimationStart",webkitanimationend:"webkitAnimationEnd",webkittransitionend:"webkitTransitionEnd",domfocusout:"DOMFocusOut",domfocusin:"DOMFocusIn",animationend:"webkitAnimationEnd",animationiteration:"webkitAnimationIteration",animationstart:"webkitAnimationStart",doubleclick:"dblclick",fullscreenchange:"webkitfullscreenchange",fullscreenerror:"webkitfullscreenerror",keyadded:"webkitkeyadded",keyerror:"webkitkeyerror",keymessage:"webkitkeymessage",needkey:"webkitneedkey",speechchange:"webkitSpeechChange"},C.uS)
+C.p5=I.makeConstantList(["!",":",",",")","]","}","?","||","&&","|","^","&","!=","==",">=",">","<=","<","+","-","%","/","*","(","[",".","{"])
+C.dj=new H.LP(27,{"!":0,":":0,",":0,")":0,"]":0,"}":0,"?":1,"||":2,"&&":3,"|":4,"^":5,"&":6,"!=":7,"==":7,">=":8,">":8,"<=":8,"<":8,"+":9,"-":9,"%":10,"/":10,"*":10,"(":11,"[":11,".":11,"{":11},C.p5)
+C.pa=I.makeConstantList(["name","extends","constructor","noscript","attributes"])
+C.kr=new H.LP(5,{name:1,extends:1,constructor:1,noscript:1,attributes:1},C.pa)
+C.ME=I.makeConstantList(["enumerate"])
+C.va=new H.LP(1,{enumerate:K.ZO},C.ME)
+C.Wp=L.Nh.prototype
+C.Xg=Q.ih.prototype
+C.t5=W.BH.prototype
+C.k0=V.F1.prototype
+C.mk=Z.uL.prototype
+C.xk=A.XP.prototype
+C.Iv=A.ir.prototype
+C.Cc=Q.NQ.prototype
+C.cJ=U.fI.prototype
+C.Ks=X.kK.prototype
+C.bg=X.uw.prototype
+C.PU=new H.GD("dart.core.Object")
+C.nz=new H.GD("dart.core.DateTime")
+C.Ts=new H.GD("dart.core.bool")
+C.A5=new H.GD("Directory")
+C.pk=new H.GD("Platform")
+C.fz=new H.GD("[]")
+C.wh=new H.GD("app")
+C.Ka=new H.GD("call")
+C.XA=new H.GD("cls")
+C.b1=new H.GD("code")
+C.to=new H.GD("createRuntimeType")
+C.Je=new H.GD("current")
+C.h1=new H.GD("currentHash")
+C.tv=new H.GD("currentHashUri")
+C.Na=new H.GD("devtools")
+C.Jw=new H.GD("displayValue")
+C.nN=new H.GD("dynamic")
+C.YU=new H.GD("error")
+C.Yn=new H.GD("error_obj")
+C.WQ=new H.GD("field")
+C.nf=new H.GD("function")
+C.AZ=new H.GD("dart.core.String")
+C.Di=new H.GD("iconClass")
+C.EN=new H.GD("id")
+C.fn=new H.GD("instance")
+C.eJ=new H.GD("instruction")
+C.Y2=new H.GD("isolate")
+C.Gd=new H.GD("json")
+C.fy=new H.GD("kind")
+C.Wn=new H.GD("length")
+C.EV=new H.GD("library")
+C.Cv=new H.GD("lines")
+C.PC=new H.GD("dart.core.int")
+C.wt=new H.GD("members")
+C.KY=new H.GD("messageType")
+C.YS=new H.GD("name")
+C.OV=new H.GD("noSuchMethod")
+C.Ws=new H.GD("operatingSystem")
+C.X9=new H.GD("paddedLine")
+C.qb=new H.GD("prefix")
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+C.wH=new H.GD("responses")
+C.ok=new H.GD("dart.core.Null")
+C.md=new H.GD("dart.core.double")
+C.fX=new H.GD("script")
+C.eC=new H.GD("[]=")
+C.hn=new H.GD("source")
+C.kw=new H.GD("trace")
+C.Fh=new H.GD("url")
+C.ls=new H.GD("value")
+C.eR=new H.GD("valueType")
+C.QK=new H.GD("window")
+C.vO=H.mm('br')
+C.wK=new H.Lm(C.vO,"K",0)
+C.SL=H.mm('Ae')
+C.WX=new H.Lm(C.SL,"V",0)
+C.QJ=H.mm('xh')
+C.wW=new H.Lm(C.QJ,"T",0)
+C.wa=new H.Lm(C.vO,"V",0)
+C.Ti=H.mm('wn')
+C.Mt=new H.Lm(C.Ti,"E",0)
+C.Ye=H.mm('hx')
+C.G6=H.mm('F1')
+C.NM=H.mm('Nh')
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+C.Yc=H.mm('iP')
+C.LN=H.mm('Be')
+C.Qa=H.mm('u7')
+C.xS=H.mm('UZ')
+C.PT=H.mm('CX')
+C.Op=H.mm('G8')
+C.xF=H.mm('NQ')
+C.b4=H.mm('ih')
+C.Ob=H.mm('kK')
+C.hG=H.mm('ir')
+C.aj=H.mm('fI')
+C.dA=H.mm('Ms')
+C.mo=H.mm('Fv')
+C.O4=H.mm('double')
+C.xE=H.mm('aC')
+C.yw=H.mm('int')
+C.vuj=H.mm('uw')
+C.j6=H.mm('qr')
+C.C6=H.mm('vj')
+C.CT=H.mm('St')
+C.Q4=H.mm('uL')
+C.yQ=H.mm('EH')
+C.Db=H.mm('String')
+C.yg=H.mm('I3')
+C.XU=H.mm('i6')
+C.Bm=H.mm('XP')
+C.Wz=H.mm('pR')
+C.HL=H.mm('bool')
+C.HH=H.mm('dynamic')
+C.Gp=H.mm('cw')
+C.mnH=H.mm('Ds')
+C.CS=H.mm('vm')
+C.XK=H.mm('Gk')
+C.GX=H.mm('c8')
+C.vB=J.is.prototype
+C.dy=new P.z0(!1)
+C.ol=W.K5.prototype
+C.hi=H.VM(new W.kG(W.f0),[W.Lq])
+C.Qq=new P.wJ(null,null,null,null,null,null,null,null,null,null,null,null)
+$.lE=null
+$.b9=1
+$.te="$cachedFunction"
+$.eb="$cachedInvocation"
+$.NF=null
+$.TX=null
+$.x7=null
+$.nw=null
+$.vv=null
+$.Bv=null
+$.oK=null
+$.tY=null
+$.TH=!1
+$.X3=C.NU
+$.Ss=0
+$.L4=null
+$.PN=null
+$.RL=!1
+$.Y4=C.IF
+$.xO=0
+$.el=0
+$.tW=null
+$.Td=!1
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+$.uP=!0
+$.To=null
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+if($desc instanceof Array)$desc=$desc[1]
+PW.prototype=$desc
+return[qE,Yy,Ps,rK,fY,Mr,zx,ct,nB,i3,it,Az,QP,QW,n6,Ny,OM,QQ,MA,y4,d7,na,oJ,DG,mN,vH,hh,Em,Sb,rV,Wy,YN,bA,Wq,rv,BK,wj,cv,Fs,SX,ea,D0,as,T5,Aa,u5,Yu,iG,jP,U2,tA,xn,Vb,QH,ST,X2,fJ,Vi,tX,Sg,pA,Mi,Gt,In,Gx,eP,AL,Og,cS,M6,El,zm,SV,aB,ku,KM,cW,DK,qm,ZY,cx,la,Vn,PG,xe,Hw,bn,Im,oB,Aj,oU,qT,KV,BH,mh,G7,wq,Ql,Xp,bP,mX,SN,HD,ni,p3,qj,qW,KR,ew,fs,bX,BL,MC,Mx,j2,yz,lp,pD,I0,QR,Cp,ua,zD,Ul,G0,wb,fq,h4,qk,GI,Tb,tV,BT,yY,kJ,AE,xV,FH,y6,RH,pU,Lq,Mf,BR,r4,aG,J6,K5,UM,UL,rq,nK,kc,ij,ty,Nf,Nc,rj,rh,Zv,Q7,hF,OF,HB,ZJ,mU,eZ,Fl,y5,nV,Zc,ui,D6,DQ,Sm,dx,es,eG,lv,pf,NV,W1,zo,wf,TU,bb,VE,lc,Xu,qM,tk,me,qN,nh,d4,MI,ca,xX,eW,um,Fu,OE,l6,BA,zp,rE,CC,PQ,uz,Yd,U0,AD,Gr,tc,GH,lo,NJ,nd,vt,rQ,EU,LR,MB,hy,r8,aS,CG,qF,MT,Rk,Eo,Dn,UD,ZD,NE,wD,BD,vRT,Fi,Qr,mj,cB,uY,yR,AX,xJ,l4,Et,NC,nb,By,xt,tG,P0,Jq,Xr,qD,Cf,I2,AS,Kq,oI,mJ,rF,vi,ZX,ycx,nE,zt,F0,Lt,Gv,kn,PE,QI,FP,is,Q,jx,ZC,Jt,P,im,Pp,O,PK,JO,O2,aX,cC,RA,IY,JH,jl,Iy,JM,Ua,JG,ns,wd,TA,YP,yc,I9,Bj,NO,II,aJ,X1,HU,Pm,oo,OW,Dd,AP,yH,FA,Av,oH,LP,c2,WT,p8,XR,LI,A2,F3,u8,Gi,t2,Zr,ZQ,az,vV,Hk,XO,dr,TL,KX,uZ,OQ,Tp,v,Z3,D2,GT,Pe,Eq,cu,Lm,dC,wN,VX,VR,EK,KW,Pb,tQ,aC,Vf,Be,tu,i6,Vc,zO,aL,nH,a7,i1,xy,MH,A8,U5,SO,zs,rR,AM,d5,U1,SJ,SU,Tv,XC,iK,GD,Sn,nI,jU,Lj,mb,am,cw,EE,Uz,uh,Kv,oP,YX,BI,y1,M2,iu,mg,zE,bl,Ef,Oo,Tc,Ax,Wf,Un,Ei,U7,t0,Ld,Sz,Zk,fu,ng,Ar,jB,ye,Gj,Zz,Xh,Ca,Ik,JI,Ip,WV,C7,CQ,dz,tK,OR,Bg,DL,b8,j7,oV,TP,Zf,vs,da,xw,dm,rH,ZL,mi,jb,wB,Pu,qh,QC,Yl,Rv,YJ,jv,LB,DO,lz,Rl,Jb,M4,Jp,h7,pr,eN,B5,PI,j4,i9,VV,Dy,lU,xp,UH,Z5,ii,ib,MO,ms,UO,Bc,vp,lk,Gh,XB,ly,cK,O9,yU,nP,KA,Vo,qB,ez,lx,LV,DS,dp,B3,CR,ny,dR,uR,QX,YR,fB,bq,nO,t3,dq,dX,aY,wJ,e4,JB,Id,fZ,TF,Xz,Cg,Hs,uo,pK,eM,Ue,W5,R8,k6,oi,ce,o2,jG,fG,EQ,YB,iX,ou,S9,ey,xd,v6,db,Cm,N6,jg,YO,oz,b6,ef,zQ,Yp,u3,mW,ar,lD,W0,Sw,o0,a1,jp,Xt,Ba,An,LD,YI,OG,ro,DN,ZM,HW,JC,f1,Uk,wI,ob,Ud,K8,by,dI,QM,Sh,tF,z0,Vx,Rw,GY,jZ,h0,CL,uA,a2,fR,iP,MF,Rq,Hn,Zl,pl,a6,P7,DW,Ge,LK,AT,bJ,mp,ub,ds,lj,UV,VS,t7,HG,aE,kM,EH,cX,eL,L8,c8,a,Od,mE,WU,Rn,wv,uq,iD,hb,XX,Kd,yZ,Gs,pm,Tw,wm,FB,Lk,XZ,qz,hQ,Nw,kZ,JT,d9,rI,dD,QZ,BV,E1,wz,B1,M5,Jn,DM,zL,ec,Kx,iO,bU,e7,nj,rl,RAp,ma,cf,E9,nF,FK,Si,vf,Fc,hD,I4,e0,RO,eu,ie,Ea,pu,i2,b0,Ov,qO,RX,kG,Gm,W9,vZ,dW,PA,H2,O7,HI,E4,r7,Tz,Wk,DV,Hp,Nz,Jd,QS,QF,NL,vr,D4,L9u,Ms,Fw,RS,RY,Ys,vg,xG,Vj,VW,RK,DH,ZK,Th,Vju,KB,RKu,xGn,TkQ,VWk,ZKG,DHb,w6W,Hna,z9g,G8,UZ,Fv,WZ,I3,pv,qr,Vfx,Gk,Dsd,Ds,tuj,aI,rG,yh,wO,Tm,rz,CA,YL,KC,xL,As,GE,pR,Vct,hx,D13,u7,St,WZq,vj,pva,CX,cda,TJ,dG,Ng,HV,Nh,fA,tz,jR,PO,c5,ih,mL,bv,pt,Zd,dY,vY,dS,ZW,dZ,Qe,Nu,pF,Ha,nu,be,Pg,jI,Rb,Zw,Pf,F1,waa,uL,Nr,Pi,yj,qI,J3,E5,o5,b5,zI,Zb,id,iV,W4,Fa,x9,d3,X6,xh,wn,uF,cj,HA,br,zT,D7,qL,C4,l9,lP,km,Qt,Dk,A0,rm,eY,OO,BE,Qb,xI,q1,Zj,XP,q6,CK,BO,ZG,Oc,MX,w12,fTP,yL,dM,Y7,WC,Xi,TV,Mq,Oa,n1,xf,L6,Rs,uJ,hm,Ji,Bf,ir,Sa,GN,k8,HJ,S0,V3,Bl,pM,Mh,Md,Lf,fT,pp,Nq,nl,mf,ej,HK,w13,o8,GL,e9,Dw,Xy,uK,mY,fE,mB,XF,iH,wJY,zOQ,W6o,MdQ,YJG,DOe,lPa,Ufa,Raa,w0,w4,w5,w7,w9,w10,w11,c4,z6,Ay,Ed,G1,Os,Dl,Wh,x5,ev,ID,jV,ek,OC,Xm,Jy,ky,fa,WW,vQ,a9,jh,e3,VA,J1,fk,wL,B0,Fq,hw,EZ,no,kB,ae,Iq,w6,jK,uk,K9,RW,xs,FX,Ae,Bt,vR,Pn,hc,hA,fr,a0,NQ,fI,V0,kK,V4,uw,V6,V2,D8,jY,ll,Uf,ik,LfS,NP,Vh,r0,jz,SA,zV,nv,ee,XI,hs,yp,ug,DT,OB,Ra,N9,NW,HS,TG,ts,Kj,VU,Ya,XT,ic,VT,T4,TR,VD,Oh,zy,Nb,Fy,eU,ADW,Ri,kq,Ag,PW]}
\ No newline at end of file
diff --git a/runtime/bin/vmservice/client/lib/observatory_elements.dart b/runtime/bin/vmservice/client/lib/observatory_elements.dart
index 6847736..0f50949 100644
--- a/runtime/bin/vmservice/client/lib/observatory_elements.dart
+++ b/runtime/bin/vmservice/client/lib/observatory_elements.dart
@@ -1,8 +1,14 @@
 library observatory_elements;
 
 // Export elements.
+export 'package:observatory/src/observatory_elements/class_view.dart';
+export 'package:observatory/src/observatory_elements/code_view.dart';
 export 'package:observatory/src/observatory_elements/collapsible_content.dart';
 export 'package:observatory/src/observatory_elements/error_view.dart';
+export 'package:observatory/src/observatory_elements/field_ref.dart';
+export 'package:observatory/src/observatory_elements/field_view.dart';
+export 'package:observatory/src/observatory_elements/instance_ref.dart';
+export 'package:observatory/src/observatory_elements/instance_view.dart';
 export 'package:observatory/src/observatory_elements/isolate_list.dart';
 export 'package:observatory/src/observatory_elements/isolate_summary.dart';
 export 'package:observatory/src/observatory_elements/json_view.dart';
@@ -15,3 +21,4 @@
 export 'package:observatory/src/observatory_elements/script_view.dart';
 export 'package:observatory/src/observatory_elements/source_view.dart';
 export 'package:observatory/src/observatory_elements/stack_trace.dart';
+
diff --git a/runtime/bin/vmservice/client/lib/observatory_elements.html b/runtime/bin/vmservice/client/lib/observatory_elements.html
index 199998a..ae96d66 100644
--- a/runtime/bin/vmservice/client/lib/observatory_elements.html
+++ b/runtime/bin/vmservice/client/lib/observatory_elements.html
@@ -5,10 +5,13 @@
  <link rel="import" href="src/observatory_elements/code_view.html">
  <link rel="import" href="src/observatory_elements/collapsible_content.html">
  <link rel="import" href="src/observatory_elements/error_view.html">
+ <link rel="import" href="src/observatory_elements/field_ref.html">
  <link rel="import" href="src/observatory_elements/field_view.html">
  <link rel="import" href="src/observatory_elements/function_view.html">
  <link rel="import" href="src/observatory_elements/isolate_list.html">
  <link rel="import" href="src/observatory_elements/isolate_summary.html">
+ <link rel="import" href="src/observatory_elements/instance_ref.html">
+ <link rel="import" href="src/observatory_elements/instance_view.html">
  <link rel="import" href="src/observatory_elements/json_view.html">
  <link rel="import" href="src/observatory_elements/library_view.html">
  <link rel="import" href="src/observatory_elements/message_viewer.html">
diff --git a/runtime/bin/vmservice/client/lib/src/observatory/application.dart b/runtime/bin/vmservice/client/lib/src/observatory/application.dart
index f321dbe..46ea631 100644
--- a/runtime/bin/vmservice/client/lib/src/observatory/application.dart
+++ b/runtime/bin/vmservice/client/lib/src/observatory/application.dart
@@ -11,10 +11,7 @@
   @observable final RequestManager requestManager;
   @observable final IsolateManager isolateManager;
 
-  ObservatoryApplication() :
-      locationManager = new LocationManager(),
-      requestManager = new HttpRequestManager(),
-      isolateManager = new IsolateManager() {
+  void _setup() {
     locationManager._application = this;
     requestManager._application = this;
     isolateManager._application = this;
@@ -22,6 +19,20 @@
     locationManager.init();
   }
 
+  ObservatoryApplication.devtools() :
+      locationManager = new LocationManager(),
+      requestManager = new PostMessageRequestManager(),
+      isolateManager = new IsolateManager() {
+    _setup();
+  }
+
+  ObservatoryApplication() :
+      locationManager = new LocationManager(),
+      requestManager = new HttpRequestManager(),
+      isolateManager = new IsolateManager() {
+    _setup();
+  }
+
   /// Return the [Isolate] with [id].
   Isolate getIsolate(int id) {
     return isolateManager.isolates[id];
diff --git a/runtime/bin/vmservice/client/lib/src/observatory/request_manager.dart b/runtime/bin/vmservice/client/lib/src/observatory/request_manager.dart
index 9a26b54..705e067 100644
--- a/runtime/bin/vmservice/client/lib/src/observatory/request_manager.dart
+++ b/runtime/bin/vmservice/client/lib/src/observatory/request_manager.dart
@@ -68,7 +68,11 @@
       request(requestString).then((responseString) {
         parseResponses(responseString);
       }).catchError((e) {
-        setResponseError(e.target);
+        if (e is FormatException) {
+          setResponseError(e.message);
+        } else {
+          setResponseError(e.target);
+        }
       });
     }
   }
@@ -102,3 +106,44 @@
     return HttpRequest.getString(prefix + requestString);
   }
 }
+
+class PostMessageRequestManager extends RequestManager {
+  final Map _outstandingRequests = new Map();
+  int _requestSerial = 0;
+  PostMessageRequestManager() {
+    window.onMessage.listen(_messageHandler);
+  }
+
+  void _messageHandler(msg) {
+    var id = msg.data['id'];
+    var name = msg.data['name'];
+    var data = msg.data['data'];
+    if (name != 'observatoryData') {
+      return;
+    }
+    print('Got reply $id $data');
+    var completer = _outstandingRequests[id];
+    if (completer != null) {
+      _outstandingRequests.remove(id);
+      print('Completing $id');
+      completer.complete(data);
+    } else {
+      print('Could not find completer for $id');
+    }
+  }
+
+  Future<String> request(String requestString) {
+    var idString = '$_requestSerial';
+    Map message = {};
+    message['id'] = idString;
+    message['method'] = 'observatoryQuery';
+    message['query'] = requestString;
+    _requestSerial++;
+
+    var completer = new Completer();
+    _outstandingRequests[idString] = completer;
+
+    window.parent.postMessage(JSON.encode(message), '*');
+    return completer.future;
+  }
+}
diff --git a/runtime/bin/vmservice/client/lib/src/observatory_elements/class_view.html b/runtime/bin/vmservice/client/lib/src/observatory_elements/class_view.html
index 525035f..762d1a4 100644
--- a/runtime/bin/vmservice/client/lib/src/observatory_elements/class_view.html
+++ b/runtime/bin/vmservice/client/lib/src/observatory_elements/class_view.html
@@ -1,6 +1,8 @@
 <head>
   <link rel="import" href="observatory_element.html">
   <link rel="import" href="error_view.html">
+  <link rel="import" href="field_ref.html">
+  <link rel="import" href="instance_ref.html">
 </head>
 <polymer-element name="class-view" extends="observatory-element">
   <template>
@@ -8,12 +10,12 @@
     <div class="col-md-8 col-md-offset-2">
       <div class="panel panel-warning">
         <div class="panel-heading">
-          {{ cls['user_name'] }} ({{ cls['name'] }}) 
+          class <strong>{{ cls['user_name'] }}</strong>
           <template if="{{ cls['super']['type'] != 'Null' }}">
             extends
             <a href="{{ app.locationManager.currentIsolateClassLink(cls['super']['id'])}}">
               {{ cls['super']['user_name'] }}
-            </a> 
+            </a>
           </template>
           <a class="pull-right" href="{{ app.locationManager.currentIsolateObjectLink(cls['library']['id'])}}">
             {{ cls['library']['name'] }}
@@ -37,21 +39,18 @@
               <tr>
                 <td>Patch</td><td>{{ cls['patch'] }}</td>
               </tr>
+              <tr>
+                <td>VM Name</td><td>{{ cls['name'] }}</td>
+              </tr>
             </tbody>
           </table>
           <template if="{{ cls['error'] == null }}">
             <blockquote><strong>Fields</strong></blockquote>
             <table class="table table-hover">
-              <thead>
-                <tr>
-                  <th>User Name</th>
-                  <th>VM Name</th>
-                </tr>
-              </thead>
-              <tbody>
+             <tbody>
                 <tr template repeat="{{ field in cls['fields'] }}">
-                  <td><a href="{{ app.locationManager.currentIsolateObjectLink(field['id'])}}">{{ field['user_name'] }}</a></td>
-                  <td><a href="{{ app.locationManager.currentIsolateObjectLink(field['id'])}}">{{ field['name'] }}</a></td>
+                  <td><field-ref app="{{ app }}" field="{{ field }}"></field-ref></td>
+                  <td><instance-ref app="{{ app }}" instance="{{ field['value'] }}"></instance-ref></td>                  
                 </tr>
               </tbody>
             </table>
diff --git a/runtime/bin/vmservice/client/lib/src/observatory_elements/field_ref.dart b/runtime/bin/vmservice/client/lib/src/observatory_elements/field_ref.dart
new file mode 100644
index 0000000..ddbe8537
--- /dev/null
+++ b/runtime/bin/vmservice/client/lib/src/observatory_elements/field_ref.dart
@@ -0,0 +1,14 @@
+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+library field_ref_element;
+
+import 'package:polymer/polymer.dart';
+import 'observatory_element.dart';
+
+@CustomTag('field-ref')
+class FieldRefElement extends ObservatoryElement {
+  @published Map field;
+  FieldRefElement.created() : super.created();
+}
\ No newline at end of file
diff --git a/runtime/bin/vmservice/client/lib/src/observatory_elements/field_ref.html b/runtime/bin/vmservice/client/lib/src/observatory_elements/field_ref.html
new file mode 100644
index 0000000..1d6e716
--- /dev/null
+++ b/runtime/bin/vmservice/client/lib/src/observatory_elements/field_ref.html
@@ -0,0 +1,19 @@
+<head>
+<link rel="import" href="observatory_element.html">
+</head>
+<polymer-element name="field-ref" extends="observatory-element">
+<template>
+<div>
+  <template if="{{ field['final'] }}"> final </template>
+  <template if="{{ field['const'] }}"> const </template>
+  <template if="{{ (field['declared_type']['name'] == 'dynamic' && !field['final'] && !field['const']) }}">
+  var
+  </template>
+  <template if="{{ (field['declared_type']['name'] != 'dynamic') }}">
+  <a href="{{ app.locationManager.currentIsolateClassLink(field['declared_type']['id']) }}">
+    {{ field['declared_type']['user_name'] }} </a>
+  </template>
+  <a href="{{ app.locationManager.currentIsolateObjectLink(field['id'])}}">
+    {{ field['user_name'] }} </a>
+</div>
+</template> <script type="application/dart" src="field_ref.dart"></script> </polymer-element>
\ No newline at end of file
diff --git a/runtime/bin/vmservice/client/lib/src/observatory_elements/instance_ref.dart b/runtime/bin/vmservice/client/lib/src/observatory_elements/instance_ref.dart
new file mode 100644
index 0000000..3e8aa78
--- /dev/null
+++ b/runtime/bin/vmservice/client/lib/src/observatory_elements/instance_ref.dart
@@ -0,0 +1,14 @@
+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+library instance_ref_element;
+
+import 'package:polymer/polymer.dart';
+import 'observatory_element.dart';
+
+@CustomTag('instance-ref')
+class InstanceRefElement extends ObservatoryElement {
+  @published Map instance;
+  InstanceRefElement.created() : super.created();
+}
\ No newline at end of file
diff --git a/runtime/bin/vmservice/client/lib/src/observatory_elements/instance_ref.html b/runtime/bin/vmservice/client/lib/src/observatory_elements/instance_ref.html
new file mode 100644
index 0000000..d9abb4f
--- /dev/null
+++ b/runtime/bin/vmservice/client/lib/src/observatory_elements/instance_ref.html
@@ -0,0 +1,16 @@
+<head>
+<link rel="import" href="observatory_element.html">
+</head>
+<polymer-element name="instance-ref" extends="observatory-element">
+<template>
+<div>
+  <template if="{{ (instance['type'] == 'null') }}">
+    {{ "null" }}
+  </template>
+  <template if="{{ (instance['type'] != 'null') }}">
+  <a href="{{ app.locationManager.currentIsolateObjectLink(instance['id'])}}">
+    {{ instance['preview'] }}
+  </a>
+  </template>
+ </div>
+</template> <script type="application/dart" src="instance_ref.dart"></script> </polymer-element>
\ No newline at end of file
diff --git a/runtime/bin/vmservice/client/lib/src/observatory_elements/instance_view.dart b/runtime/bin/vmservice/client/lib/src/observatory_elements/instance_view.dart
new file mode 100644
index 0000000..fcbeaa8
--- /dev/null
+++ b/runtime/bin/vmservice/client/lib/src/observatory_elements/instance_view.dart
@@ -0,0 +1,14 @@
+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+library instance_view_element;
+
+import 'package:polymer/polymer.dart';
+import 'observatory_element.dart';
+
+@CustomTag('instance-view')
+class InstanceViewElement extends ObservatoryElement {
+  @published Map instance;
+  InstanceViewElement.created() : super.created();
+}
\ No newline at end of file
diff --git a/runtime/bin/vmservice/client/lib/src/observatory_elements/instance_view.html b/runtime/bin/vmservice/client/lib/src/observatory_elements/instance_view.html
new file mode 100644
index 0000000..c4864c4
--- /dev/null
+++ b/runtime/bin/vmservice/client/lib/src/observatory_elements/instance_view.html
@@ -0,0 +1,47 @@
+<head>
+  <link rel="import" href="observatory_element.html">
+  <link rel="import" href="error_view.html">
+  <link rel="import" href="field_ref.html">
+  <link rel="import" href="instance_ref.html">
+</head>
+<polymer-element name="instance-view" extends="observatory-element">
+  <template>
+    <div class="row">
+    <div class="col-md-8 col-md-offset-2">
+      <div class="panel panel-warning">   
+        <div class="panel-heading">
+         Instance of
+         <a href="{{ app.locationManager.currentIsolateClassLink(instance['class']['id'])}}">
+            {{ instance['class']['user_name'] }}
+         </a>
+        </div>
+        <div class="panel-body">
+          <template if="{{ instance['error'] == null }}">
+            <table class="table table-hover">
+              <tbody>
+                <tr>
+                  <td>Preview</td><td>{{ instance['preview'] }}</td>
+                </tr>
+              </tbody>
+            </table>
+            <blockquote><strong>Fields</strong></blockquote>
+            <table class="table table-hover">
+             <tbody>
+                <tr template repeat="{{ field in instance['fields'] }}">
+                  <td><field-ref app="{{ app }}" field="{{ field }}"></field-ref></td>
+                  <td><instance-ref app="{{ app }}" instance="{{ field['value'] }}"></instance-ref></td>              
+                </tr>
+              </tbody>
+            </table>
+          </template>
+          <template if="{{ instance['error'] != null }}">
+            <error-view error_obj="{{ instance['error'] }}"></error-view>
+          </template>
+        </div>
+      </div>
+    </div>
+    </div>
+  </template>
+  <script type="application/dart" src="instance_view.dart"></script>
+</polymer-element>
+t>
\ No newline at end of file
diff --git a/runtime/bin/vmservice/client/lib/src/observatory_elements/library_view.dart b/runtime/bin/vmservice/client/lib/src/observatory_elements/library_view.dart
index b2cebf2..befd59e 100644
--- a/runtime/bin/vmservice/client/lib/src/observatory_elements/library_view.dart
+++ b/runtime/bin/vmservice/client/lib/src/observatory_elements/library_view.dart
@@ -4,8 +4,8 @@
 
 library library_view_element;
 
-import 'observatory_element.dart';
 import 'package:polymer/polymer.dart';
+import 'observatory_element.dart';
 
 @CustomTag('library-view')
 class LibraryViewElement extends ObservatoryElement {
diff --git a/runtime/bin/vmservice/client/lib/src/observatory_elements/library_view.html b/runtime/bin/vmservice/client/lib/src/observatory_elements/library_view.html
index 93009fb..746592b 100644
--- a/runtime/bin/vmservice/client/lib/src/observatory_elements/library_view.html
+++ b/runtime/bin/vmservice/client/lib/src/observatory_elements/library_view.html
@@ -1,5 +1,7 @@
 <head>
   <link rel="import" href="observatory_element.html">
+  <link rel="import" href="field_ref.html">
+  <link rel="import" href="instance_ref.html">
 </head>
 <polymer-element name="library-view" extends="observatory-element">
   <template>
@@ -33,35 +35,8 @@
   <table class="table table-hover">
     <tbody>
       <tr template repeat="{{ variable in library['variables'] }}">
-        <td>
-          <template if="{{ variable['final'] }}">
-            final
-          </template>
-          <template if="{{ variable['const'] }}">
-            const
-          </template>
-          <template if="{{ (variable['declared_type']['name'] == 'dynamic' && !variable['final'] && !variable['const']) }}">
-            var
-          </template>
-          <template if="{{ (variable['declared_type']['name'] != 'dynamic') }}">
-            <a href="{{ app.locationManager.currentIsolateClassLink(variable['declared_type']['id']) }}">
-              {{ variable['declared_type']['user_name'] }}
-            </a>
-          </template>
-          <a href="{{ app.locationManager.currentIsolateObjectLink(variable['id'])}}">
-            {{ variable['user_name'] }}
-          </a>
-        </td>
-        <td>
-          <template if="{{ (variable['value']['type'] == 'null') }}">
-            {{ "null" }}
-          </template>
-          <template if="{{ (variable['value']['type'] != 'null') }}">
-            <a href="{{ app.locationManager.currentIsolateObjectLink(variable['value']['id'])}}">
-              {{ variable['value']['preview'] }}
-            </a>
-          </template>
-        </td>
+        <td><field-ref app="{{ app }}" field="{{ variable }}"></field-ref></td>
+        <td><instance-ref app="{{ app }}" instance="{{ variable['value'] }}"></instance-ref></td>
       </tr>
     </tbody>
   </table>
diff --git a/runtime/bin/vmservice/client/lib/src/observatory_elements/message_viewer.html b/runtime/bin/vmservice/client/lib/src/observatory_elements/message_viewer.html
index 6ed611e..3bd2aff 100644
--- a/runtime/bin/vmservice/client/lib/src/observatory_elements/message_viewer.html
+++ b/runtime/bin/vmservice/client/lib/src/observatory_elements/message_viewer.html
@@ -4,6 +4,7 @@
   <link rel="import" href="error_view.html">
   <link rel="import" href="field_view.html">
   <link rel="import" href="function_view.html">
+  <link rel="import" href="instance_view.html">
   <link rel="import" href="isolate_list.html">
   <link rel="import" href="library_view.html">
   <link rel="import" href="observatory_element.html">
@@ -38,6 +39,24 @@
     <template if="{{ messageType == 'Field' }}">
       <field-view app="{{ app }}" field="{{ message }}"></field-view>
     </template>
+    <template if="{{ messageType == 'Instance' }}">
+      <instance-view app="{{ app }}" instance="{{ message }}"></instance-view>
+    </template>
+    <template if="{{ messageType == 'Array' }}">
+      <instance-view app="{{ app }}" instance="{{ message }}"></instance-view>
+    </template>
+    <template if="{{ messageType == 'GrowableObjectArray' }}">
+      <instance-view app="{{ app }}" instance="{{ message }}"></instance-view>
+    </template>
+    <template if="{{ messageType == 'String' }}">
+      <instance-view app="{{ app }}" instance="{{ message }}"></instance-view>
+    </template>
+    <template if="{{ messageType == 'Bool' }}">
+      <instance-view app="{{ app }}" instance="{{ message }}"></instance-view>
+    </template>
+    <template if="{{ messageType == 'Smi' }}">
+      <instance-view app="{{ app }}" instance="{{ message }}"></instance-view>
+    </template>
     <template if="{{ messageType == 'Function' }}">
       <function-view app="{{ app }}" function="{{ message }}"></function-view>
     </template>
diff --git a/runtime/bin/vmservice/client/lib/src/observatory_elements/observatory_application.dart b/runtime/bin/vmservice/client/lib/src/observatory_elements/observatory_application.dart
index 53dbb0b..affc779 100644
--- a/runtime/bin/vmservice/client/lib/src/observatory_elements/observatory_application.dart
+++ b/runtime/bin/vmservice/client/lib/src/observatory_elements/observatory_application.dart
@@ -13,8 +13,12 @@
 /// elements.
 @CustomTag('observatory-application')
 class ObservatoryApplicationElement extends ObservatoryElement {
-
+  @published bool devtools = false;
   ObservatoryApplicationElement.created() : super.created() {
-    app = new ObservatoryApplication();
+    if (devtools) {
+      app = new ObservatoryApplication.devtools();
+    } else {
+      app = new ObservatoryApplication();
+    }
   }
-}
\ No newline at end of file
+}
diff --git a/runtime/bin/vmservice/client/precommit.sh b/runtime/bin/vmservice/client/precommit.sh
index 3ce83cd..b923d9f 100755
--- a/runtime/bin/vmservice/client/precommit.sh
+++ b/runtime/bin/vmservice/client/precommit.sh
@@ -14,6 +14,7 @@
 CUSTOM_ELEMENTS="packages/custom_element/custom-elements.debug.js"
 INTEROP="packages/browser/interop.js"
 OBSERVATORY="index.html_bootstrap.dart.precompiled.js"
+OBSERVATORY_DEVTOOLS="index_devtools.html_bootstrap.dart.precompiled.js"
 
 # Base directory
 BASE="out/web"
@@ -29,3 +30,9 @@
 # Rolling
 cat $INPUT > $OUTPUT
 cp $BASE/index.html $DEPLOYED/index.html
+
+INPUT_DEVTOOLS="$INPUT $BASE/$OBSERVATORY_DEVTOOLS"
+OUTPUT_DEVTOOLS="$DEPLOYED/index_devtools.html_bootstrap.dart.js"
+
+cat $INPUT_DEVTOOLS > $OUTPUT_DEVTOOLS
+cp $BASE/index_devtools.html $DEPLOYED/index_devtools.html
diff --git a/runtime/bin/vmservice/client/pubspec.yaml b/runtime/bin/vmservice/client/pubspec.yaml
index 318643a..21ec1da 100644
--- a/runtime/bin/vmservice/client/pubspec.yaml
+++ b/runtime/bin/vmservice/client/pubspec.yaml
@@ -1,4 +1,4 @@
 name: observatory
-version: 0.1.0
+version: 0.1.1
 dependencies:
   polymer: any
diff --git a/runtime/bin/vmservice/client/web/index_devtools.html b/runtime/bin/vmservice/client/web/index_devtools.html
new file mode 100644
index 0000000..25a8678
--- /dev/null
+++ b/runtime/bin/vmservice/client/web/index_devtools.html
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<head>
+  <title>Dart VM Observatory</title>
+  <meta charset="utf-8">
+  <link type="text/css" rel="stylesheet" 
+                        href="bootstrap_css/css/bootstrap.min.css" />
+  <link rel="import" href="packages/observatory/observatory_elements.html">
+  <script type="application/dart">export 'package:polymer/init.dart';</script>
+  <script src="packages/browser/dart.js"></script>
+</head>
+<body>
+  <observatory-application devtools="true"></observatory-application>
+</body>
diff --git a/runtime/bin/vmservice/running_isolates.dart b/runtime/bin/vmservice/running_isolates.dart
index 0cfa02f..547b9b5 100644
--- a/runtime/bin/vmservice/running_isolates.dart
+++ b/runtime/bin/vmservice/running_isolates.dart
@@ -40,10 +40,12 @@
 
   Future route(ServiceRequest request) {
     if (request.pathSegments.length == 0) {
-      return null;
+      request.setErrorResponse('No path.');
+      return new Future.value(request);
     }
     if (request.pathSegments[0] != 'isolates') {
-      return null;
+      request.setErrorResponse('Path must begin with /isolates/.');
+      return new Future.value(request);
     }
     if (request.pathSegments.length == 1) {
       // Requesting list of running isolates.
diff --git a/runtime/bin/vmservice/server.dart b/runtime/bin/vmservice/server.dart
index 7992b3b..19490a1 100644
--- a/runtime/bin/vmservice/server.dart
+++ b/runtime/bin/vmservice/server.dart
@@ -12,6 +12,12 @@
 
   Server(this.service, this.port);
 
+  void _sendResponse(HttpRequest request, String response) {
+    request.response..headers.contentType = jsonContentType
+                    ..write(response)
+                    ..close();
+  }
+
   void _requestHandler(HttpRequest request) {
     // Allow cross origin requests.
     request.response.headers.add('Access-Control-Allow-Origin', '*');
@@ -31,27 +37,17 @@
 
     var serviceRequest = new ServiceRequest();
     var r = serviceRequest.parse(request.uri);
-    if (!r) {
-      // Did not understand the request uri.
-      serviceRequest.setErrorResponse('Invalid request uri: ${request.uri}');
-    } else {
+    if (r) {
       var f = service.runningIsolates.route(serviceRequest);
-      if (f != null) {
-        f.then((_) {
-          request.response.headers.contentType = jsonContentType;
-          request.response.write(serviceRequest.response);
-          request.response.close();
-        }).catchError((e) { });
-        return;
-      } else {
-        // Nothing responds to this type of request.
-        serviceRequest.setErrorResponse('No route for: $path');
-      }
+      assert(f != null);
+      f.then((_) {
+        _sendResponse(request, serviceRequest.response);
+      }).catchError((e) {
+        // Error replying over HTTP.
+      });
+      return;
     }
-
-    request.response.headers.contentType = jsonContentType;
-    request.response.write(serviceRequest.response);
-    request.response.close();
+    _sendResponse(request, serviceRequest.response);
   }
 
   Future startServer() {
diff --git a/runtime/bin/vmservice/service_request.dart b/runtime/bin/vmservice/service_request.dart
index 4724d7c..8d7eb52 100644
--- a/runtime/bin/vmservice/service_request.dart
+++ b/runtime/bin/vmservice/service_request.dart
@@ -16,6 +16,7 @@
     var path = uri.path;
     var split = path.split('/');
     if (split.length == 0) {
+      setErrorResponse('Invalid request uri: ${request.uri}');
       return false;
     }
     for (int i = 0; i < split.length; i++) {
@@ -37,7 +38,7 @@
 
   void setErrorResponse(String error) {
     _response = JSON.encode({
-        'type': 'error',
+        'type': 'Error',
         'msg': error,
         'pathSegments': pathSegments,
         'parameters': parameters
diff --git a/runtime/bin/vmservice/vmservice.dart b/runtime/bin/vmservice/vmservice.dart
index 9c58842fe..309399f 100644
--- a/runtime/bin/vmservice/vmservice.dart
+++ b/runtime/bin/vmservice/vmservice.dart
@@ -53,4 +53,4 @@
 }
 
 void sendServiceMessage(SendPort sp, ReceivePort rp, Object m)
-    native "SendServiceMessage";
+    native "VMService_SendServiceMessage";
diff --git a/runtime/bin/vmservice/vmservice_dartium.dart b/runtime/bin/vmservice/vmservice_dartium.dart
index c1520ec..249455d 100644
--- a/runtime/bin/vmservice/vmservice_dartium.dart
+++ b/runtime/bin/vmservice/vmservice_dartium.dart
@@ -13,25 +13,20 @@
 RawReceivePort _requestPort;
 
 // The native method that is called to post the response back to DevTools.
-void postResponse(String response, int cookie) native "PostResponse";
+void postResponse(String response, int cookie) native "VMService_PostResponse";
 
 void handleRequest(service, String uri, cookie) {
   var serviceRequest = new ServiceRequest();
   var r = serviceRequest.parse(Uri.parse(uri));
-  if (!r) {
-    // Did not understand the request uri.
-    serviceRequest.setErrorResponse('Invalid request uri: ${uri}');
-  } else {
+  if (r) {
     var f = service.runningIsolates.route(serviceRequest);
-    if (f != null) {
-      f.then((_) {
-        postResponse(serviceRequest.response, cookie);
-      }).catchError((e) { });
-      return;
-    } else {
-      // Nothing responds to this type of request.
-      serviceRequest.setErrorResponse('No route for: $uri');
-    }
+    assert(f != null);
+    f.then((_) {
+      postResponse(serviceRequest.response, cookie);
+    }).catchError((e) {
+      // Error posting response back to Dartium.
+    });
+    return;
   }
   postResponse(serviceRequest.response, cookie);
 }
diff --git a/runtime/bin/vmservice_impl.cc b/runtime/bin/vmservice_impl.cc
index 24f6f7a..74fb836 100644
--- a/runtime/bin/vmservice_impl.cc
+++ b/runtime/bin/vmservice_impl.cc
@@ -535,7 +535,7 @@
 
 
 static VmServiceNativeEntry _VmServiceNativeEntries[] = {
-  {"SendServiceMessage", 3, SendServiceMessage}
+  {"VMService_SendServiceMessage", 3, SendServiceMessage}
 };
 
 
diff --git a/runtime/include/dart_debugger_api.h b/runtime/include/dart_debugger_api.h
index 00d9d70..c2c5aaa 100755
--- a/runtime/include/dart_debugger_api.h
+++ b/runtime/include/dart_debugger_api.h
@@ -25,6 +25,14 @@
  */
 #define ILLEGAL_ISOLATE_ID ILLEGAL_PORT
 
+
+/**
+ * Null value for breakpoint id. Guaranteed never to be associated
+ * with a valid breakpoint.
+ */
+#define ILLEGAL_BREAKPOINT_ID 0
+
+
 // DEPRECATED -- use Dart_PausedEventHandler
 typedef void Dart_BreakpointHandler(Dart_IsolateId isolate_id,
                                     Dart_Breakpoint breakpoint,
@@ -55,6 +63,7 @@
                                       Dart_IsolateEvent kind);
 
 typedef void Dart_PausedEventHandler(Dart_IsolateId isolate_id,
+                                     intptr_t bp_id,
                                      const Dart_CodeLocation& location);
 
 typedef void Dart_BreakpointResolvedHandler(Dart_IsolateId isolate_id,
diff --git a/runtime/lib/mirrors.cc b/runtime/lib/mirrors.cc
index d67d438..59d95bc 100644
--- a/runtime/lib/mirrors.cc
+++ b/runtime/lib/mirrors.cc
@@ -336,6 +336,7 @@
   ASSERT(!cls.IsDynamicClass() && !cls.IsVoidClass());
   ASSERT(!type.IsNull());
   ASSERT(type.IsFinalized());
+  ASSERT(!type.IsTypeRef());
 
   if (cls.IsSignatureClass()) {
     if (cls.IsCanonicalSignatureClass()) {
@@ -382,6 +383,7 @@
 static RawInstance* CreateTypeMirror(const AbstractType& type) {
   ASSERT(type.IsFinalized());
   ASSERT(!type.IsMalformed());
+  ASSERT(!type.IsTypeRef());
   if (type.HasResolvedTypeClass()) {
     const Class& cls = Class::Handle(type.type_class());
     // Handle void and dynamic types.
@@ -1274,6 +1276,7 @@
   const intptr_t num_inherited_args = args.Length() - num_params;
   for (intptr_t i = 0; i < num_params; i++) {
     arg_type ^= args.TypeAt(i + num_inherited_args);
+    arg_type = arg_type.Canonicalize();  // Necessary for recursive types.
     type_mirror = CreateTypeMirror(arg_type);
     result.SetAt(i, type_mirror);
   }
@@ -1326,6 +1329,39 @@
   const Array& args_descriptor =
       Array::Handle(ArgumentsDescriptor::New(args.Length(), arg_names));
 
+  if (function.IsNull()) {
+    // Didn't find a method: try to find a getter and invoke call on its result.
+    const String& getter_name =
+        String::Handle(Field::GetterName(function_name));
+    function = Resolver::ResolveDynamicAnyArgs(klass, getter_name);
+    if (!function.IsNull()) {
+      ASSERT(function.kind() != RawFunction::kMethodExtractor);
+      // Invoke the getter.
+      const int kNumArgs = 1;
+      const Array& getter_args = Array::Handle(Array::New(kNumArgs));
+      getter_args.SetAt(0, reflectee);
+      const Array& getter_args_descriptor =
+          Array::Handle(ArgumentsDescriptor::New(getter_args.Length()));
+      const Instance& getter_result = Instance::Handle(
+          InvokeDynamicFunction(reflectee,
+                                function,
+                                getter_name,
+                                getter_args,
+                                getter_args_descriptor));
+      // Replace the closure as the receiver in the arguments list.
+      args.SetAt(0, getter_result);
+      // Call the closure.
+      const Object& call_result =
+          Object::Handle(DartEntry::InvokeClosure(args, args_descriptor));
+      if (call_result.IsError()) {
+        ThrowInvokeError(Error::Cast(call_result));
+        UNREACHABLE();
+      }
+      return call_result.raw();
+    }
+  }
+
+  // Found an ordinary method.
   return InvokeDynamicFunction(reflectee,
                                function,
                                function_name,
@@ -1508,13 +1544,49 @@
   GET_NON_NULL_NATIVE_ARGUMENT(Array, args, arguments->NativeArgAt(3));
   GET_NON_NULL_NATIVE_ARGUMENT(Array, arg_names, arguments->NativeArgAt(4));
 
+  Function& function = Function::Handle(
+      klass.LookupStaticFunction(function_name));
+
+  if (function.IsNull()) {
+    // Didn't find a method: try to find a getter and invoke call on its result.
+    const String& getter_name =
+        String::Handle(Field::GetterName(function_name));
+    function = klass.LookupStaticFunction(getter_name);
+    if (!function.IsNull()) {
+      // Invoke the getter.
+      const Object& getter_result = Object::Handle(
+          DartEntry::InvokeFunction(function, Object::empty_array()));
+      if (getter_result.IsError()) {
+        ThrowInvokeError(Error::Cast(getter_result));
+        UNREACHABLE();
+      }
+      // Make room for the closure (receiver) in the argument list.
+      int numArgs = args.Length();
+      const Array& call_args = Array::Handle(Array::New(numArgs + 1));
+      Object& temp = Object::Handle();
+      for (int i = 0; i < numArgs; i++) {
+        temp = args.At(i);
+        call_args.SetAt(i + 1, temp);
+      }
+      call_args.SetAt(0, getter_result);
+      const Array& call_args_descriptor_array =
+        Array::Handle(ArgumentsDescriptor::New(call_args.Length(), arg_names));
+      // Call the closure.
+      const Object& call_result = Object::Handle(
+          DartEntry::InvokeClosure(call_args, call_args_descriptor_array));
+      if (call_result.IsError()) {
+        ThrowInvokeError(Error::Cast(call_result));
+        UNREACHABLE();
+      }
+      return call_result.raw();
+    }
+  }
+
   const Array& args_descriptor_array =
       Array::Handle(ArgumentsDescriptor::New(args.Length(), arg_names));
 
-  const Function& function = Function::Handle(
-      klass.LookupStaticFunction(function_name));
-
   ArgumentsDescriptor args_descriptor(args_descriptor_array);
+
   if (function.IsNull() ||
       !function.AreValidArguments(args_descriptor, NULL) ||
       !function.is_visible()) {
@@ -1758,13 +1830,48 @@
   GET_NON_NULL_NATIVE_ARGUMENT(Array, args, arguments->NativeArgAt(3));
   GET_NON_NULL_NATIVE_ARGUMENT(Array, arg_names, arguments->NativeArgAt(4));
 
-  const Array& args_descriptor_array =
-      Array::Handle(ArgumentsDescriptor::New(args.Length(), arg_names));
-
-  const Function& function = Function::Handle(
+  Function& function = Function::Handle(
       library.LookupLocalFunction(function_name));
 
+  if (function.IsNull()) {
+    // Didn't find a method: try to find a getter and invoke call on its result.
+    const String& getter_name =
+        String::Handle(Field::GetterName(function_name));
+    function = library.LookupLocalFunction(getter_name);
+    if (!function.IsNull()) {
+      // Invoke getter.
+      const Object& getter_result = Object::Handle(
+          DartEntry::InvokeFunction(function, Object::empty_array()));
+      if (getter_result.IsError()) {
+        ThrowInvokeError(Error::Cast(getter_result));
+        UNREACHABLE();
+      }
+      // Make room for the closure (receiver) in arguments.
+      int numArgs = args.Length();
+      const Array& call_args = Array::Handle(Array::New(numArgs + 1));
+      Object& temp = Object::Handle();
+      for (int i = 0; i < numArgs; i++) {
+        temp = args.At(i);
+        call_args.SetAt(i + 1, temp);
+      }
+      call_args.SetAt(0, getter_result);
+      const Array& call_args_descriptor_array =
+        Array::Handle(ArgumentsDescriptor::New(call_args.Length(), arg_names));
+      // Call closure.
+      const Object& call_result = Object::Handle(
+          DartEntry::InvokeClosure(call_args, call_args_descriptor_array));
+      if (call_result.IsError()) {
+        ThrowInvokeError(Error::Cast(call_result));
+        UNREACHABLE();
+      }
+      return call_result.raw();
+    }
+  }
+
+  const Array& args_descriptor_array =
+      Array::Handle(ArgumentsDescriptor::New(args.Length(), arg_names));
   ArgumentsDescriptor args_descriptor(args_descriptor_array);
+
   if (function.IsNull() ||
       !function.AreValidArguments(args_descriptor, NULL) ||
       !function.is_visible()) {
diff --git a/runtime/lib/mirrors_impl.dart b/runtime/lib/mirrors_impl.dart
index ec24d3e..e057fd2 100644
--- a/runtime/lib/mirrors_impl.dart
+++ b/runtime/lib/mirrors_impl.dart
@@ -160,6 +160,70 @@
   }
 }
 
+class _SyntheticAccessor implements MethodMirror {
+  final DeclarationMirror owner;
+  final Symbol simpleName;
+  final bool isGetter;
+  final bool isStatic;
+  final bool isTopLevel;
+  final _target;
+
+  _SyntheticAccessor(this.owner,
+                     this.simpleName,
+                     this.isGetter,
+                     this.isStatic,
+                     this.isTopLevel,
+                     this._target);
+
+  bool get isSynthetic => true;
+  bool get isRegularMethod => false;
+  bool get isOperator => false;
+  bool get isConstructor => false;
+  bool get isConstConstructor => false;
+  bool get isGenerativeConstructor => false;
+  bool get isFactoryConstructor => false;
+  bool get isRedirectingConstructor => false;
+  bool get isAbstract => false;
+
+  bool get isSetter => !isGetter;
+  bool get isPrivate => _n(simpleName).startsWith('_');
+
+  Symbol get qualifiedName => _computeQualifiedName(owner, simpleName);
+  Symbol get constructorName => const Symbol('');
+
+  TypeMirror get returnType => _target.type;
+  List<ParameterMirror> get parameters {
+    if (isGetter) return emptyList;
+    return new UnmodifiableListView(
+        [new _SyntheticSetterParameter(this, this._target)]);
+  }
+
+  List<InstanceMirror> get metadata => emptyList;
+
+  String get source => null;
+}
+
+class _SyntheticSetterParameter implements ParameterMirror {
+  final DeclarationMirror owner;
+  final VariableMirror _target;
+
+  _SyntheticSetterParameter(this.owner, this._target);
+
+  Symbol get simpleName => _target.simpleName;
+  Symbol get qualifiedName => _computeQualifiedName(owner, simpleName);
+  TypeMirror get type => _target.type;
+
+  bool get isOptional => false;
+  bool get isNamed => false;
+  bool get isStatic => false;
+  bool get isTopLevel => false;
+  bool get isConst => false;
+  bool get isFinal => true;
+  bool get isPrivate => false;
+  bool get hasDefaultValue => false;
+  InstanceMirror get defaultValue => null;
+}
+
 abstract class _LocalObjectMirror extends _LocalMirror implements ObjectMirror {
   final _reflectee; // May be a MirrorReference or an ordinary object.
 
@@ -492,6 +556,59 @@
     return _mixin;
   }
 
+  var _cachedStaticMembers;
+  Map<Symbol, MethodMirror> get staticMembers {
+    if (_cachedStaticMembers == null) {
+      var result = new Map<Symbol, MethodMirror>();
+      declarations.values.forEach((decl) {
+        if (decl is MethodMirror && decl.isStatic &&
+            !decl.isConstructor && !decl.isAbstract) {
+          result[decl.simpleName] = decl;
+        }
+        if (decl is VariableMirror && decl.isStatic) {
+          var getterName = decl.simpleName;
+          result[getterName] =
+              new _SyntheticAccessor(this, getterName, true, true, false, decl);
+          if (!decl.isFinal) {
+            var setterName = _asSetter(decl.simpleName, this.owner);
+            result[setterName] = new _SyntheticAccessor(
+                this, setterName, false, true, false, decl);
+          }
+        }
+      });
+      _cachedStaticMembers = result;
+    }
+    return _cachedStaticMembers;
+  }
+
+  var _cachedInstanceMembers;
+  Map<Symbol, MethodMirror> get instanceMembers {
+    if (_cachedInstanceMembers == null) {
+      var result = new Map<Symbol, MethodMirror>();
+      if (superclass != null) {
+        result.addAll(superclass.instanceMembers);
+      }
+      declarations.values.forEach((decl) {
+        if (decl is MethodMirror && !decl.isStatic &&
+            !decl.isConstructor && !decl.isAbstract) {
+          result[decl.simpleName] = decl;
+        }
+        if (decl is VariableMirror && !decl.isStatic) {
+          var getterName = decl.simpleName;
+          result[getterName] =
+              new _SyntheticAccessor(this, getterName, true, false, false, decl);
+          if (!decl.isFinal) {
+            var setterName = _asSetter(decl.simpleName, this.owner);
+            result[setterName] = new _SyntheticAccessor(
+                this, setterName, false, false, false, decl);
+          }
+        }
+      });
+      _cachedInstanceMembers = result;
+    }
+    return _cachedInstanceMembers;
+  }
+
   Map<Symbol, DeclarationMirror> _declarations;
   Map<Symbol, DeclarationMirror> get declarations {
     if (_declarations != null) return _declarations;
@@ -918,8 +1035,12 @@
       native "TypedefMirror_declaration";
 }
 
-class _LocalLibraryMirror extends _LocalObjectMirror
-    implements LibraryMirror {
+Symbol _asSetter(Symbol getter, LibraryMirror library) {
+  var unwrapped = MirrorSystem.getName(getter);
+  return MirrorSystem.getSymbol('${unwrapped}=', library);
+}
+
+class _LocalLibraryMirror extends _LocalObjectMirror implements LibraryMirror {
   final Symbol simpleName;
   final Uri uri;
 
@@ -951,6 +1072,11 @@
         new _UnmodifiableMapView<Symbol, DeclarationMirror>(_members);
   }
 
+  Map<Symbol, MethodMirror> get topLevelMembers {
+    throw new UnimplementedError(
+        'LibraryMirror.topLevelMembers is not implemented');
+  }
+
   Map<Symbol, Mirror> _cachedMembers;
   Map<Symbol, Mirror> get _members {
     if (_cachedMembers == null) {
@@ -1050,6 +1176,7 @@
                         _n(constructorName).startsWith('_');
 
   bool get isTopLevel => owner is LibraryMirror;
+  bool get isSynthetic => false;
 
   SourceLocation get location {
     throw new UnimplementedError('MethodMirror.location is not implemented');
diff --git a/runtime/lib/type_patch.dart b/runtime/lib/type_patch.dart
index 4f2dee7..67d7db5 100644
--- a/runtime/lib/type_patch.dart
+++ b/runtime/lib/type_patch.dart
@@ -13,6 +13,10 @@
 class _Type extends _AbstractType {
 }
 
+// Equivalent of RawTypeRef.
+class _TypeRef extends _AbstractType {
+}
+
 // Equivalent of RawTypeParameter.
 class _TypeParameter extends _AbstractType {
 }
diff --git a/runtime/vm/assembler_arm.h b/runtime/vm/assembler_arm.h
index c5971e5..d2b51b8 100644
--- a/runtime/vm/assembler_arm.h
+++ b/runtime/vm/assembler_arm.h
@@ -323,6 +323,11 @@
     return FLAG_use_far_branches || use_far_branches_;
   }
 
+  void set_use_far_branches(bool b) {
+    ASSERT(buffer_.Size() == 0);
+    use_far_branches_ = b;
+  }
+
   void FinalizeInstructions(const MemoryRegion& region) {
     buffer_.FinalizeInstructions(region);
   }
@@ -750,7 +755,7 @@
   GrowableObjectArray& object_pool_;  // Objects and patchable jump targets.
   int32_t prologue_offset_;
 
-  const bool use_far_branches_;
+  bool use_far_branches_;
 
   int32_t AddObject(const Object& obj);
   int32_t AddExternalLabel(const ExternalLabel* label);
diff --git a/runtime/vm/assembler_arm_test.cc b/runtime/vm/assembler_arm_test.cc
index a533cc3..58e529e 100644
--- a/runtime/vm/assembler_arm_test.cc
+++ b/runtime/vm/assembler_arm_test.cc
@@ -478,6 +478,49 @@
 }
 
 
+ASSEMBLER_TEST_GENERATE(Loop2, assembler) {
+  Label loop_entry;
+  __ set_use_far_branches(true);
+  __ mov(R0, ShifterOperand(1));
+  __ mov(R1, ShifterOperand(2));
+  __ Bind(&loop_entry);
+  __ mov(R0, ShifterOperand(R0, LSL, 1));
+  __ movs(R1, ShifterOperand(R1, LSR, 1));
+  __ b(&loop_entry, NE);
+  __ bx(LR);
+}
+
+
+ASSEMBLER_TEST_RUN(Loop2, test) {
+  EXPECT(test != NULL);
+  typedef int (*Loop)();
+  EXPECT_EQ(4, EXECUTE_TEST_CODE_INT32(Loop, test->entry()));
+}
+
+
+ASSEMBLER_TEST_GENERATE(Loop3, assembler) {
+  Label loop_entry;
+  __ set_use_far_branches(true);
+  __ mov(R0, ShifterOperand(1));
+  __ mov(R1, ShifterOperand(2));
+  __ Bind(&loop_entry);
+  for (int i = 0; i < (1 << 22); i++) {
+    __ nop();
+  }
+  __ mov(R0, ShifterOperand(R0, LSL, 1));
+  __ movs(R1, ShifterOperand(R1, LSR, 1));
+  __ b(&loop_entry, NE);
+  __ bx(LR);
+}
+
+
+ASSEMBLER_TEST_RUN(Loop3, test) {
+  EXPECT(test != NULL);
+  typedef int (*Loop)();
+  EXPECT_EQ(4, EXECUTE_TEST_CODE_INT32(Loop, test->entry()));
+}
+
+
 ASSEMBLER_TEST_GENERATE(LoadStore, assembler) {
   __ mov(R1, ShifterOperand(123));
   __ Push(R1);
diff --git a/runtime/vm/assembler_mips.cc b/runtime/vm/assembler_mips.cc
index 61469da..bcedc07 100644
--- a/runtime/vm/assembler_mips.cc
+++ b/runtime/vm/assembler_mips.cc
@@ -185,7 +185,7 @@
     const int32_t dest =
         label->Position() - (buffer_.Size() + Instr::kInstrSize);
     if (use_far_branches() && !CanEncodeBranchOffset(dest)) {
-      EmitFarBranch(b, rs, rt, label->Position());
+      EmitFarBranch(OppositeBranchOpcode(b), rs, rt, label->Position());
     } else {
       const uint16_t dest_off = EncodeBranchOffset(dest, 0);
       EmitIType(b, rs, rt, dest_off);
@@ -210,7 +210,7 @@
     const int32_t dest =
         label->Position() - (buffer_.Size() + Instr::kInstrSize);
     if (use_far_branches() && !CanEncodeBranchOffset(dest)) {
-      EmitFarRegImmBranch(b, rs, label->Position());
+      EmitFarRegImmBranch(OppositeBranchNoLink(b), rs, label->Position());
     } else {
       const uint16_t dest_off = EncodeBranchOffset(dest, 0);
       EmitRegImmType(REGIMM, rs, b, dest_off);
diff --git a/runtime/vm/assembler_mips.h b/runtime/vm/assembler_mips.h
index d17f05d..d30e8ee 100644
--- a/runtime/vm/assembler_mips.h
+++ b/runtime/vm/assembler_mips.h
@@ -175,6 +175,11 @@
     return FLAG_use_far_branches || use_far_branches_;
   }
 
+  void set_use_far_branches(bool b) {
+    ASSERT(buffer_.Size() == 0);
+    use_far_branches_ = b;
+  }
+
   void EnterFrame();
   void LeaveFrameAndReturn();
 
@@ -1163,7 +1168,7 @@
   GrowableObjectArray& object_pool_;  // Objects and patchable jump targets.
   intptr_t prologue_offset_;
 
-  const bool use_far_branches_;
+  bool use_far_branches_;
   bool delay_slot_available_;
   bool in_delay_slot_;
 
diff --git a/runtime/vm/assembler_mips_test.cc b/runtime/vm/assembler_mips_test.cc
index 620c17d..d293395 100644
--- a/runtime/vm/assembler_mips_test.cc
+++ b/runtime/vm/assembler_mips_test.cc
@@ -693,6 +693,27 @@
 }
 
 
+ASSEMBLER_TEST_GENERATE(Beq_backward_far, assembler) {
+  Label l;
+
+  __ set_use_far_branches(true);
+
+  __ LoadImmediate(T1, 0);
+  __ LoadImmediate(T2, 1);
+  __ Bind(&l);
+  __ addiu(T1, T1, Immediate(1));
+  __ beq(T1, T2, &l);
+  __ ori(V0, T1, Immediate(0));
+  __ jr(RA);
+}
+
+
+ASSEMBLER_TEST_RUN(Beq_backward_far, test) {
+  typedef int (*SimpleCode)();
+  EXPECT_EQ(2, EXECUTE_TEST_CODE_INT32(SimpleCode, test->entry()));
+}
+
+
 ASSEMBLER_TEST_GENERATE(Beq_backward_delay, assembler) {
   Label l;
 
@@ -733,10 +754,12 @@
 }
 
 
-ASSEMBLER_TEST_GENERATE(Beq_forward_not_taken, assembler) {
+ASSEMBLER_TEST_GENERATE(Beq_forward_taken_far, assembler) {
   Label l;
 
-  __ LoadImmediate(T5, 0);
+  __ set_use_far_branches(true);
+
+  __ LoadImmediate(T5, 1);
   __ LoadImmediate(T6, 1);
 
   __ LoadImmediate(V0, 42);
@@ -747,12 +770,82 @@
 }
 
 
+ASSEMBLER_TEST_RUN(Beq_forward_taken_far, test) {
+  typedef int (*SimpleCode)();
+  EXPECT_EQ(42, EXECUTE_TEST_CODE_INT32(SimpleCode, test->entry()));
+}
+
+
+ASSEMBLER_TEST_GENERATE(Beq_forward_not_taken, assembler) {
+  Label l;
+
+  __ LoadImmediate(T5, 0);
+  __ LoadImmediate(T6, 1);
+
+  __ LoadImmediate(V0, 42);
+  __ beq(T5, T6, &l);
+  __ nop();
+  __ LoadImmediate(V0, 0);
+  __ Bind(&l);
+  __ jr(RA);
+}
+
+
 ASSEMBLER_TEST_RUN(Beq_forward_not_taken, test) {
   typedef int (*SimpleCode)();
   EXPECT_EQ(0, EXECUTE_TEST_CODE_INT32(SimpleCode, test->entry()));
 }
 
 
+ASSEMBLER_TEST_GENERATE(Beq_forward_not_taken_far, assembler) {
+  Label l;
+
+  __ set_use_far_branches(true);
+
+  __ LoadImmediate(T5, 0);
+  __ LoadImmediate(T6, 1);
+
+  __ LoadImmediate(V0, 42);
+  __ beq(T5, T6, &l);
+  __ nop();
+  __ LoadImmediate(V0, 0);
+  __ Bind(&l);
+  __ jr(RA);
+}
+
+
+ASSEMBLER_TEST_RUN(Beq_forward_not_taken_far, test) {
+  typedef int (*SimpleCode)();
+  EXPECT_EQ(0, EXECUTE_TEST_CODE_INT32(SimpleCode, test->entry()));
+}
+
+
+ASSEMBLER_TEST_GENERATE(Beq_forward_not_taken_far2, assembler) {
+  Label l;
+
+  __ set_use_far_branches(true);
+
+  __ LoadImmediate(T5, 0);
+  __ LoadImmediate(T6, 1);
+
+  __ LoadImmediate(V0, 42);
+  __ beq(T5, T6, &l);
+  __ nop();
+  for (int i = 0; i < (1 << 15); i++) {
+    __ nop();
+  }
+  __ LoadImmediate(V0, 0);
+  __ Bind(&l);
+  __ jr(RA);
+}
+
+
+ASSEMBLER_TEST_RUN(Beq_forward_not_taken_far2, test) {
+  typedef int (*SimpleCode)();
+  EXPECT_EQ(0, EXECUTE_TEST_CODE_INT32(SimpleCode, test->entry()));
+}
+
+
 ASSEMBLER_TEST_GENERATE(Beq_forward_taken2, assembler) {
   Label l;
 
@@ -775,6 +868,57 @@
 }
 
 
+ASSEMBLER_TEST_GENERATE(Beq_forward_taken_far2, assembler) {
+  Label l;
+
+  __ set_use_far_branches(true);
+
+  __ LoadImmediate(T5, 1);
+  __ LoadImmediate(T6, 1);
+
+  __ LoadImmediate(V0, 42);
+  __ beq(T5, T6, &l);
+  __ nop();
+  __ nop();
+  __ LoadImmediate(V0, 0);
+  __ Bind(&l);
+  __ jr(RA);
+}
+
+
+ASSEMBLER_TEST_RUN(Beq_forward_taken_far2, test) {
+  typedef int (*SimpleCode)();
+  EXPECT_EQ(42, EXECUTE_TEST_CODE_INT32(SimpleCode, test->entry()));
+}
+
+
+ASSEMBLER_TEST_GENERATE(Beq_forward_taken_far3, assembler) {
+  Label l;
+
+  __ set_use_far_branches(true);
+
+  __ LoadImmediate(T5, 1);
+  __ LoadImmediate(T6, 1);
+
+  __ LoadImmediate(V0, 42);
+  __ beq(T5, T6, &l);
+  __ nop();
+  for (int i = 0; i < (1 << 15); i++) {
+    __ nop();
+  }
+  __ nop();
+  __ LoadImmediate(V0, 0);
+  __ Bind(&l);
+  __ jr(RA);
+}
+
+
+ASSEMBLER_TEST_RUN(Beq_forward_taken_far3, test) {
+  typedef int (*SimpleCode)();
+  EXPECT_EQ(42, EXECUTE_TEST_CODE_INT32(SimpleCode, test->entry()));
+}
+
+
 ASSEMBLER_TEST_GENERATE(Beq_forward_taken_delay, assembler) {
   Label l;
 
@@ -855,6 +999,145 @@
 }
 
 
+ASSEMBLER_TEST_GENERATE(Bgez_far, assembler) {
+  Label l;
+
+  __ set_use_far_branches(true);
+
+  __ LoadImmediate(T5, 3);
+  __ Bind(&l);
+  __ bgez(T5, &l);
+  __ delay_slot()->addiu(T5, T5, Immediate(-1));
+  __ ori(V0, T5, Immediate(0));
+  __ jr(RA);
+}
+
+
+ASSEMBLER_TEST_RUN(Bgez_far, test) {
+  typedef int (*SimpleCode)();
+  EXPECT_EQ(-2, EXECUTE_TEST_CODE_INT32(SimpleCode, test->entry()));
+}
+
+
+ASSEMBLER_TEST_GENERATE(Bgez_far2, assembler) {
+  Label l;
+
+  __ set_use_far_branches(true);
+
+  __ LoadImmediate(T5, 3);
+  __ Bind(&l);
+  for (int i = 0; i < (1 << 15); i++) {
+    __ nop();
+  }
+  __ bgez(T5, &l);
+  __ delay_slot()->addiu(T5, T5, Immediate(-1));
+  __ ori(V0, T5, Immediate(0));
+  __ jr(RA);
+}
+
+
+ASSEMBLER_TEST_RUN(Bgez_far2, test) {
+  typedef int (*SimpleCode)();
+  EXPECT_EQ(-2, EXECUTE_TEST_CODE_INT32(SimpleCode, test->entry()));
+}
+
+
+ASSEMBLER_TEST_GENERATE(Bgez_taken_forward_far, assembler) {
+  Label l;
+
+  __ set_use_far_branches(true);
+
+  __ LoadImmediate(T5, 1);
+
+  __ LoadImmediate(V0, 42);
+  __ bgez(T5, &l);
+  __ nop();
+  __ nop();
+  __ LoadImmediate(V0, 0);
+  __ Bind(&l);
+  __ jr(RA);
+}
+
+
+ASSEMBLER_TEST_RUN(Bgez_taken_forward_far, test) {
+  typedef int (*SimpleCode)();
+  EXPECT_EQ(42, EXECUTE_TEST_CODE_INT32(SimpleCode, test->entry()));
+}
+
+
+ASSEMBLER_TEST_GENERATE(Bgez_taken_forward_far2, assembler) {
+  Label l;
+
+  __ set_use_far_branches(true);
+
+  __ LoadImmediate(T5, 1);
+
+  __ LoadImmediate(V0, 42);
+  __ bgez(T5, &l);
+  __ nop();
+  for (int i = 0; i < (1 << 15); i++) {
+    __ nop();
+  }
+  __ LoadImmediate(V0, 0);
+  __ Bind(&l);
+  __ jr(RA);
+}
+
+
+ASSEMBLER_TEST_RUN(Bgez_taken_forward_far2, test) {
+  typedef int (*SimpleCode)();
+  EXPECT_EQ(42, EXECUTE_TEST_CODE_INT32(SimpleCode, test->entry()));
+}
+
+
+ASSEMBLER_TEST_GENERATE(Bgez_not_taken_forward_far, assembler) {
+  Label l;
+
+  __ set_use_far_branches(true);
+
+  __ LoadImmediate(T5, -1);
+
+  __ LoadImmediate(V0, 42);
+  __ bgez(T5, &l);
+  __ nop();
+  __ nop();
+  __ LoadImmediate(V0, 0);
+  __ Bind(&l);
+  __ jr(RA);
+}
+
+
+ASSEMBLER_TEST_RUN(Bgez_not_taken_forward_far, test) {
+  typedef int (*SimpleCode)();
+  EXPECT_EQ(0, EXECUTE_TEST_CODE_INT32(SimpleCode, test->entry()));
+}
+
+
+ASSEMBLER_TEST_GENERATE(Bgez_not_taken_forward_far2, assembler) {
+  Label l;
+
+  __ set_use_far_branches(true);
+
+  __ LoadImmediate(T5, -1);
+
+  __ LoadImmediate(V0, 42);
+  __ bgez(T5, &l);
+  __ nop();
+  for (int i = 0; i < (1 << 15); i++) {
+    __ nop();
+  }
+  __ LoadImmediate(V0, 0);
+  __ Bind(&l);
+  __ jr(RA);
+}
+
+
+ASSEMBLER_TEST_RUN(Bgez_not_taken_forward_far2, test) {
+  typedef int (*SimpleCode)();
+  EXPECT_EQ(0, EXECUTE_TEST_CODE_INT32(SimpleCode, test->entry()));
+}
+
+
 ASSEMBLER_TEST_GENERATE(Bgezl, assembler) {
   Label l;
 
@@ -891,6 +1174,95 @@
 }
 
 
+ASSEMBLER_TEST_GENERATE(Blez_far, assembler) {
+  Label l;
+
+  __ set_use_far_branches(true);
+
+  __ LoadImmediate(T5, -3);
+  __ Bind(&l);
+  __ blez(T5, &l);
+  __ delay_slot()->addiu(T5, T5, Immediate(1));
+  __ ori(V0, T5, Immediate(0));
+  __ jr(RA);
+}
+
+
+ASSEMBLER_TEST_RUN(Blez_far, test) {
+  typedef int (*SimpleCode)();
+  EXPECT_EQ(2, EXECUTE_TEST_CODE_INT32(SimpleCode, test->entry()));
+}
+
+
+ASSEMBLER_TEST_GENERATE(Blez_far2, assembler) {
+  Label l;
+
+  __ set_use_far_branches(true);
+
+  __ LoadImmediate(T5, -3);
+  __ Bind(&l);
+  for (int i = 0; i < (1 << 15); i++) {
+    __ nop();
+  }
+  __ blez(T5, &l);
+  __ delay_slot()->addiu(T5, T5, Immediate(1));
+  __ ori(V0, T5, Immediate(0));
+  __ jr(RA);
+}
+
+
+ASSEMBLER_TEST_RUN(Blez_far2, test) {
+  typedef int (*SimpleCode)();
+  EXPECT_EQ(2, EXECUTE_TEST_CODE_INT32(SimpleCode, test->entry()));
+}
+
+
+ASSEMBLER_TEST_GENERATE(Blez_taken_forward_far, assembler) {
+  Label l;
+
+  __ set_use_far_branches(true);
+
+  __ LoadImmediate(T5, -1);
+
+  __ LoadImmediate(V0, 42);
+  __ blez(T5, &l);
+  __ nop();
+  __ nop();
+  __ LoadImmediate(V0, 0);
+  __ Bind(&l);
+  __ jr(RA);
+}
+
+
+ASSEMBLER_TEST_RUN(Blez_taken_forward_far, test) {
+  typedef int (*SimpleCode)();
+  EXPECT_EQ(42, EXECUTE_TEST_CODE_INT32(SimpleCode, test->entry()));
+}
+
+
+ASSEMBLER_TEST_GENERATE(Blez_not_taken_forward_far, assembler) {
+  Label l;
+
+  __ set_use_far_branches(true);
+
+  __ LoadImmediate(T5, 1);
+
+  __ LoadImmediate(V0, 42);
+  __ blez(T5, &l);
+  __ nop();
+  __ nop();
+  __ LoadImmediate(V0, 0);
+  __ Bind(&l);
+  __ jr(RA);
+}
+
+
+ASSEMBLER_TEST_RUN(Blez_not_taken_forward_far, test) {
+  typedef int (*SimpleCode)();
+  EXPECT_EQ(0, EXECUTE_TEST_CODE_INT32(SimpleCode, test->entry()));
+}
+
+
 ASSEMBLER_TEST_GENERATE(Blezl, assembler) {
   Label l;
 
diff --git a/runtime/vm/ast.h b/runtime/vm/ast.h
index d9f4e91..79cde35 100644
--- a/runtime/vm/ast.h
+++ b/runtime/vm/ast.h
@@ -370,6 +370,10 @@
     ASSERT(type_.IsZoneHandle());
     ASSERT(!type_.IsNull());
     ASSERT(type_.IsFinalized());
+    // A wellformed literal Type must be canonical.
+    ASSERT(!type_.IsType() ||
+           type_.IsMalformedOrMalbounded() ||
+           type_.IsCanonical());
   }
 
   const AbstractType& type() const { return type_; }
diff --git a/runtime/vm/class_finalizer.cc b/runtime/vm/class_finalizer.cc
index 01e40a8..b1401e1 100644
--- a/runtime/vm/class_finalizer.cc
+++ b/runtime/vm/class_finalizer.cc
@@ -491,11 +491,13 @@
 }
 
 
-void ClassFinalizer::FinalizeTypeParameters(const Class& cls) {
+void ClassFinalizer::FinalizeTypeParameters(
+    const Class& cls,
+    GrowableObjectArray* pending_types) {
   if (cls.IsMixinApplication()) {
     // Setup the type parameters of the mixin application and finalize the
     // mixin type.
-    ApplyMixinType(cls);
+    ApplyMixinType(cls, pending_types);
   }
   // The type parameter bounds are not finalized here.
   const TypeArguments& type_parameters =
@@ -505,9 +507,8 @@
     const intptr_t num_types = type_parameters.Length();
     for (intptr_t i = 0; i < num_types; i++) {
       type_parameter ^= type_parameters.TypeAt(i);
-      type_parameter ^= FinalizeType(cls,
-                                     type_parameter,
-                                     kCanonicalizeWellFormed);
+      type_parameter ^= FinalizeType(
+          cls, type_parameter, kFinalize, pending_types);
       type_parameters.SetTypeAt(i, type_parameter);
     }
   }
@@ -541,50 +542,46 @@
 //             num_uninitialized_arguments = 1,
 //             i.e. cls_args = [String, double], offset = 1, length = 2.
 //   Output:   arguments = [int, String, double]
+//
+// It is too early to canonicalize the type arguments of the vector, because
+// several type argument vectors may be mutually recursive and finalized at the
+// same time. Canonicalization happens when pending types are processed.
 void ClassFinalizer::FinalizeTypeArguments(
     const Class& cls,
     const AbstractTypeArguments& arguments,
     intptr_t num_uninitialized_arguments,
-    FinalizationKind finalization,
-    Error* bound_error) {
+    Error* bound_error,
+    GrowableObjectArray* pending_types) {
   ASSERT(arguments.Length() >= cls.NumTypeArguments());
   if (!cls.is_type_finalized()) {
-    FinalizeTypeParameters(cls);
+    FinalizeTypeParameters(cls, pending_types);
     ResolveUpperBounds(cls);
   }
   AbstractType& super_type = AbstractType::Handle(cls.super_type());
   if (!super_type.IsNull()) {
     const Class& super_class = Class::Handle(super_type.type_class());
-    AbstractTypeArguments& super_type_args = AbstractTypeArguments::Handle();
-    if (super_type.IsBeingFinalized()) {
-      // This type references itself via its type arguments. This is legal, but
-      // we must avoid endless recursion. We therefore map the innermost
-      // super type to dynamic.
-      // Note that a direct self-reference via the super class chain is illegal
-      // and reported as an error earlier.
-      // Such legal self-references occur with F-bounded quantification.
-      // Example 1: class Derived extends Base<Derived>.
-      // The type 'Derived' forms a cycle by pointing to itself via its
-      // flattened type argument vector: Derived[Derived[...]]
-      // We break the cycle as follows: Derived[Derived[dynamic]]
-      // Example 2: class Derived extends Base<Middle<Derived>> results in
-      // Derived[Middle[Derived[dynamic]]]
-      // Example 3: class Derived<T> extends Base<Derived<T>> results in
-      // Derived[Derived[dynamic], T].
-      ASSERT(super_type_args.IsNull());  // Same as a vector of dynamic.
-    } else {
-      super_type ^= FinalizeType(cls, super_type, finalization);
-      cls.set_super_type(super_type);
-      super_type_args = super_type.arguments();
-    }
     const intptr_t num_super_type_params = super_class.NumTypeParameters();
-    const intptr_t offset = super_class.NumTypeArguments();
-    const intptr_t super_offset = offset - num_super_type_params;
-    ASSERT(offset == (cls.NumTypeArguments() - cls.NumOwnTypeArguments()));
+    const intptr_t num_super_type_args = super_class.NumTypeArguments();
+    ASSERT(num_super_type_args ==
+           (cls.NumTypeArguments() - cls.NumOwnTypeArguments()));
+    if (!super_type.IsFinalized() && !super_type.IsBeingFinalized()) {
+      super_type ^= FinalizeType(
+          cls, super_type, kFinalize, pending_types);
+      cls.set_super_type(super_type);
+    }
+    AbstractTypeArguments& super_type_args = AbstractTypeArguments::Handle(
+        super_type.arguments());
+    // Offset of super type's type parameters in cls' type argument vector.
+    const intptr_t super_offset = num_super_type_args - num_super_type_params;
     AbstractType& super_type_arg = AbstractType::Handle(Type::DynamicType());
-    for (intptr_t i = 0; super_offset + i < num_uninitialized_arguments; i++) {
+    for (intptr_t i = super_offset; i < num_uninitialized_arguments; i++) {
       if (!super_type_args.IsNull()) {
-        super_type_arg = super_type_args.TypeAt(super_offset + i);
+        super_type_arg = super_type_args.TypeAt(i);
+        if (!super_type_arg.IsFinalized()) {
+          super_type_arg ^= FinalizeType(
+              cls, super_type_arg, kFinalize, pending_types);
+          super_type_args.SetTypeAt(i, super_type_arg);
+        }
         if (!super_type_arg.IsInstantiated()) {
           Error& error = Error::Handle();
           super_type_arg = super_type_arg.InstantiateFrom(arguments, &error);
@@ -599,14 +596,11 @@
             }
           }
         }
-        if (finalization >= kCanonicalize) {
-          super_type_arg = super_type_arg.Canonicalize();
-        }
       }
-      arguments.SetTypeAt(super_offset + i, super_type_arg);
+      arguments.SetTypeAt(i, super_type_arg);
     }
     FinalizeTypeArguments(super_class, arguments, super_offset,
-                          finalization, bound_error);
+                          bound_error, pending_types);
   }
 }
 
@@ -647,6 +641,7 @@
     if (type_arg.IsDynamicType()) {
       continue;
     }
+    ASSERT(type_arg.IsFinalized());
     cls_type_param = cls_type_params.TypeAt(i);
     const TypeParameter& type_param = TypeParameter::Cast(cls_type_param);
     ASSERT(type_param.IsFinalized());
@@ -700,9 +695,53 @@
 }
 
 
-RawAbstractType* ClassFinalizer::FinalizeType(const Class& cls,
-                                              const AbstractType& type,
-                                              FinalizationKind finalization) {
+void ClassFinalizer::CheckTypeBounds(const Class& cls, const Type& type) {
+  ASSERT(type.IsFinalized());
+  AbstractTypeArguments& arguments =
+      AbstractTypeArguments::Handle(type.arguments());
+  if (arguments.IsNull()) {
+    return;
+  }
+  Class& owner_class = Class::Handle();
+  Class& type_class = Class::Handle(type.type_class());
+  if (type_class.IsSignatureClass()) {
+    const Function& signature_fun =
+        Function::Handle(type_class.signature_function());
+    ASSERT(!signature_fun.is_static());
+    owner_class = signature_fun.Owner();
+  } else {
+    owner_class = type_class.raw();
+  }
+  Error& bound_error = Error::Handle();
+  CheckTypeArgumentBounds(owner_class, arguments, &bound_error);
+  type.set_arguments(arguments);
+  // If a bound error occurred, mark the type as malbounded.
+  // The bound error will be ignored in production mode.
+  if (!bound_error.IsNull()) {
+    // No compile-time error during finalization.
+    const String& type_name = String::Handle(type.UserVisibleName());
+    FinalizeMalboundedType(bound_error,
+                           Script::Handle(cls.script()),
+                           type,
+                           "type '%s' has an out of bound type argument",
+                           type_name.ToCString());
+    if (FLAG_trace_type_finalization) {
+      OS::Print("Marking type '%s' as malbounded: %s\n",
+                String::Handle(type.Name()).ToCString(),
+                bound_error.ToCString());
+    }
+  }
+}
+
+
+RawAbstractType* ClassFinalizer::FinalizeType(
+    const Class& cls,
+    const AbstractType& type,
+    FinalizationKind finalization,
+    GrowableObjectArray* pending_types) {
+  // Only the 'root' type of the graph can be canonicalized, after all depending
+  // types have been bound checked.
+  ASSERT((pending_types == NULL) || (finalization < kCanonicalize));
   if (type.IsFinalized()) {
     // Ensure type is canonical if canonicalization is requested, unless type is
     // malformed.
@@ -714,6 +753,21 @@
   ASSERT(type.IsResolved());
   ASSERT(finalization >= kFinalize);
 
+  if (type.IsTypeRef()) {
+    // The referenced type will be finalized later by the code that set the
+    // is_being_finalized mark bit.
+    return type.raw();
+  }
+
+  if (type.IsBeingFinalized()) {
+    if (FLAG_trace_type_finalization) {
+      OS::Print("Creating TypeRef '%s' for class '%s'\n",
+                String::Handle(type.Name()).ToCString(),
+                cls.ToCString());
+    }
+    return TypeRef::New(type);
+  }
+
   if (FLAG_trace_type_finalization) {
     OS::Print("Finalizing type '%s' for class '%s'\n",
               String::Handle(type.Name()).ToCString(),
@@ -754,11 +808,14 @@
   // At this point, we can only have a parameterized_type.
   const Type& parameterized_type = Type::Cast(type);
 
-  // Types illegally referring to themselves should have been detected earlier.
-  ASSERT(!parameterized_type.IsBeingFinalized());
-
-  // Mark type as being finalized in order to detect illegal self reference.
-  parameterized_type.set_is_being_finalized();
+  // This type is the root type of the type graph if no pending types queue is
+  // allocated yet.
+  const bool is_root_type = (pending_types == NULL);
+  GrowableObjectArray& types = GrowableObjectArray::Handle();
+  if (is_root_type) {
+    types = GrowableObjectArray::New();
+    pending_types = &types;
+  }
 
   // The type class does not need to be finalized in order to finalize the type,
   // however, it must at least be resolved (this was done as part of resolving
@@ -767,28 +824,10 @@
   // parameters of the type class must be finalized.
   Class& type_class = Class::Handle(parameterized_type.type_class());
   if (!type_class.is_type_finalized()) {
-    FinalizeTypeParameters(type_class);
+    FinalizeTypeParameters(type_class, pending_types);
     ResolveUpperBounds(type_class);
   }
 
-  // Finalize the current type arguments of the type, which are still the
-  // parsed type arguments.
-  AbstractTypeArguments& arguments =
-      AbstractTypeArguments::Handle(parameterized_type.arguments());
-  if (!arguments.IsNull()) {
-    const intptr_t num_arguments = arguments.Length();
-    AbstractType& type_argument = AbstractType::Handle();
-    for (intptr_t i = 0; i < num_arguments; i++) {
-      type_argument = arguments.TypeAt(i);
-      type_argument = FinalizeType(cls, type_argument, finalization);
-      if (type_argument.IsMalformed()) {
-        // Malformed type arguments are mapped to dynamic.
-        type_argument = Type::DynamicType();
-      }
-      arguments.SetTypeAt(i, type_argument);
-    }
-  }
-
   // The finalized type argument vector needs num_type_arguments types.
   const intptr_t num_type_arguments = type_class.NumTypeArguments();
   // The type class has num_type_parameters type parameters.
@@ -798,6 +837,8 @@
   // Check the number of parsed type arguments, if any.
   // Specifying no type arguments indicates a raw type, which is not an error.
   // However, type parameter bounds are checked below, even for a raw type.
+  AbstractTypeArguments& arguments =
+      AbstractTypeArguments::Handle(parameterized_type.arguments());
   if (!arguments.IsNull() && (arguments.Length() != num_type_parameters)) {
     // Wrong number of type arguments. The type is mapped to the raw type.
     if (FLAG_error_on_bad_type) {
@@ -813,6 +854,7 @@
     arguments = AbstractTypeArguments::null();
     parameterized_type.set_arguments(arguments);
   }
+
   // The full type argument vector consists of the type arguments of the
   // super types of type_class, which are initialized from the parsed
   // type arguments, followed by the parsed type arguments.
@@ -827,6 +869,7 @@
       // argument vector.
       const intptr_t offset = num_type_arguments - num_type_parameters;
       AbstractType& type_arg = AbstractType::Handle(Type::DynamicType());
+      // TODO(regis): Leave the temporary type argument values as null.
       for (intptr_t i = 0; i < offset; i++) {
         // Temporarily set the type arguments of the super classes to dynamic.
         full_arguments.SetTypeAt(i, type_arg);
@@ -836,8 +879,8 @@
         // create a vector of dynamic.
         if (!arguments.IsNull()) {
           type_arg = arguments.TypeAt(i);
+          // The parsed type_arg may or may not be finalized.
         }
-        ASSERT(type_arg.IsFinalized());  // Index of type parameter is adjusted.
         full_arguments.SetTypeAt(offset + i, type_arg);
       }
       // Replace the compile-time argument vector (of length zero or
@@ -847,6 +890,22 @@
       // checking, in which case type arguments of super classes will be seen
       // as dynamic.
       parameterized_type.set_arguments(full_arguments);
+      // Mark type as being finalized in order to detect self reference.
+      parameterized_type.set_is_being_finalized();
+      // Finalize the current type arguments of the type, which are still the
+      // parsed type arguments.
+      if (!arguments.IsNull()) {
+        for (intptr_t i = 0; i < num_type_parameters; i++) {
+          type_arg = full_arguments.TypeAt(offset + i);
+          ASSERT(!type_arg.IsBeingFinalized());
+          type_arg = FinalizeType(cls, type_arg, kFinalize, pending_types);
+          if (type_arg.IsMalformed()) {
+            // Malformed type arguments are mapped to dynamic.
+            type_arg = Type::DynamicType();
+          }
+          full_arguments.SetTypeAt(offset + i, type_arg);
+        }
+      }
       // If the type class is a signature class, the full argument vector
       // must include the argument vector of the super type.
       // If the signature class is a function type alias, it is also the owner
@@ -855,32 +914,27 @@
       // signature function may either be an alias or the enclosing class of a
       // local function, in which case the super type of the enclosing class is
       // also considered when filling up the argument vector.
+      Class& owner_class = Class::Handle();
       if (type_class.IsSignatureClass()) {
         const Function& signature_fun =
             Function::Handle(type_class.signature_function());
         ASSERT(!signature_fun.is_static());
-        const Class& sig_fun_owner = Class::Handle(signature_fun.Owner());
-        if (offset > 0) {
-          FinalizeTypeArguments(sig_fun_owner, full_arguments, offset,
-                                finalization, &bound_error);
-        }
-        CheckTypeArgumentBounds(sig_fun_owner, full_arguments, &bound_error);
+        owner_class = signature_fun.Owner();
       } else {
-        if (offset > 0) {
-          FinalizeTypeArguments(type_class, full_arguments, offset,
-                                finalization, &bound_error);
-        }
-        CheckTypeArgumentBounds(type_class, full_arguments, &bound_error);
+        owner_class = type_class.raw();
+      }
+      if (offset > 0) {
+        FinalizeTypeArguments(owner_class, full_arguments, offset,
+                              &bound_error, pending_types);
       }
       if (full_arguments.IsRaw(0, num_type_arguments)) {
         // The parameterized_type is raw. Set its argument vector to null, which
         // is more efficient in type tests.
         full_arguments = TypeArguments::null();
-      } else if (finalization >= kCanonicalize) {
-        // FinalizeTypeArguments can modify 'full_arguments',
-        // canonicalize afterwards.
-        full_arguments ^= full_arguments.Canonicalize();
-        ASSERT(full_arguments.Length() == num_type_arguments);
+      } else {
+        // Postpone bound checking until after all types in the graph of
+        // mutually recursive types are finalized.
+        pending_types->Add(parameterized_type);
       }
       parameterized_type.set_arguments(full_arguments);
     } else {
@@ -890,10 +944,22 @@
 
   // Self referencing types may get finalized indirectly.
   if (!parameterized_type.IsFinalized()) {
+    ASSERT(full_arguments.IsNull() ||
+           !full_arguments.IsRaw(0, num_type_arguments));
     // Mark the type as finalized.
     parameterized_type.SetIsFinalized();
   }
 
+  // If we are done finalizing a graph of mutually recursive types, check their
+  // bounds.
+  if (is_root_type) {
+    Type& type = Type::Handle();
+    for (intptr_t i = 0; i < types.Length(); i++) {
+      type ^= types.At(i);
+      CheckTypeBounds(cls, type);
+    }
+  }
+
   // If the type class is a signature class, we are currently finalizing a
   // signature type, i.e. finalizing the result type and parameter types of the
   // signature function of this signature type.
@@ -905,32 +971,12 @@
     FinalizeTypesInClass(type_class);
   }
 
-  // If a bound error occurred, mark the type as malbounded.
-  // The bound error will be ignored in production mode.
-  if (!bound_error.IsNull()) {
-    // No compile-time error during finalization.
-    const String& parameterized_type_name = String::Handle(
-        parameterized_type.UserVisibleName());
-    FinalizeMalboundedType(bound_error,
-                           Script::Handle(cls.script()),
-                           parameterized_type,
-                           "type '%s' has an out of bound type argument",
-                           parameterized_type_name.ToCString());
-
-    if (FLAG_trace_type_finalization) {
-      OS::Print("Done finalizing malbounded type '%s' with bound error: %s\n",
-                String::Handle(parameterized_type.Name()).ToCString(),
-                bound_error.ToCString());
-    }
-
-    return parameterized_type.raw();;
-  }
-
   if (FLAG_trace_type_finalization) {
-    OS::Print("Done finalizing type '%s' with %" Pd " type args\n",
+    OS::Print("Done finalizing type '%s' with %" Pd " type args: %s\n",
               String::Handle(parameterized_type.Name()).ToCString(),
               parameterized_type.arguments() == AbstractTypeArguments::null() ?
-                  0 : num_type_arguments);
+                  0 : num_type_arguments,
+              parameterized_type.ToCString());
   }
 
   if (finalization >= kCanonicalize) {
@@ -1689,7 +1735,8 @@
 }
 
 
-void ClassFinalizer::ApplyMixinType(const Class& mixin_app_class) {
+void ClassFinalizer::ApplyMixinType(const Class& mixin_app_class,
+                                    GrowableObjectArray* pending_types) {
   if (mixin_app_class.is_mixin_type_applied()) {
     return;
   }
@@ -1760,7 +1807,7 @@
   mixin_type = mixin_app_class.mixin();
   ASSERT(!mixin_type.IsBeingFinalized());
   mixin_type ^=
-      FinalizeType(mixin_app_class, mixin_type, kCanonicalizeWellFormed);
+      FinalizeType(mixin_app_class, mixin_type, kFinalize, pending_types);
   // TODO(14453): Check for a malbounded mixin_type.
   mixin_app_class.set_mixin(mixin_type);
 }
diff --git a/runtime/vm/class_finalizer.h b/runtime/vm/class_finalizer.h
index 91ec1ff..9dc56d3 100644
--- a/runtime/vm/class_finalizer.h
+++ b/runtime/vm/class_finalizer.h
@@ -33,19 +33,19 @@
     kIgnore,                   // Type is ignored and replaced by dynamic.
     kDoNotResolve,             // Type resolution is postponed.
     kResolveTypeParameters,    // Resolve type parameters only.
-    kFinalize,                 // Type resolution and type finalization are
-                               // required; replace a malformed type by dynamic.
+    kFinalize,                 // Type resolution and finalization are required.
     kCanonicalize,             // Same as kFinalize, but with canonicalization.
     kCanonicalizeWellFormed    // Error-free resolution, finalization, and
-                               // canonicalization are required; a malformed
-                               // type is marked as such.
+                               // canonicalization are required.
   };
 
   // Finalize given type while parsing class cls.
   // Also canonicalize type if applicable.
-  static RawAbstractType* FinalizeType(const Class& cls,
-                                       const AbstractType& type,
-                                       FinalizationKind finalization);
+  static RawAbstractType* FinalizeType(
+      const Class& cls,
+      const AbstractType& type,
+      FinalizationKind finalization,
+      GrowableObjectArray* pending_types = NULL);
 
   // Allocate, finalize, and return a new malformed type as if it was declared
   // in class cls at the given token position.
@@ -102,7 +102,8 @@
                                         const Function& factory);
 
   // Apply the mixin type to the mixin application class.
-  static void ApplyMixinType(const Class& mixin_app_class);
+  static void ApplyMixinType(const Class& mixin_app_class,
+                             GrowableObjectArray* pending_types = NULL);
 
  private:
   static bool IsSuperCycleFree(const Class& cls);
@@ -133,12 +134,14 @@
                                       const MixinAppType& mixin_app_type);
   static void ResolveSuperTypeAndInterfaces(const Class& cls,
                                             GrowableArray<intptr_t>* visited);
-  static void FinalizeTypeParameters(const Class& cls);
+  static void FinalizeTypeParameters(const Class& cls,
+                                     GrowableObjectArray* pending_types = NULL);
   static void FinalizeTypeArguments(const Class& cls,
                                     const AbstractTypeArguments& arguments,
                                     intptr_t num_uninitialized_arguments,
-                                    FinalizationKind finalization,
-                                    Error* bound_error);
+                                    Error* bound_error,
+                                    GrowableObjectArray* pending_types);
+  static void CheckTypeBounds(const Class& cls, const Type& type);
   static void CheckTypeArgumentBounds(const Class& cls,
                                       const AbstractTypeArguments& arguments,
                                       Error* bound_error);
diff --git a/runtime/vm/compiler.cc b/runtime/vm/compiler.cc
index 64fdad3..90f22b4 100644
--- a/runtime/vm/compiler.cc
+++ b/runtime/vm/compiler.cc
@@ -385,6 +385,11 @@
         optimizer.ApplyClassIds();
         DEBUG_ASSERT(flow_graph->VerifyUseLists());
 
+        // Propagate types for potentially newly added instructions by
+        // ApplyClassIds(). Must occur before canonicalization.
+        FlowGraphTypePropagator::Propagate(flow_graph);
+        DEBUG_ASSERT(flow_graph->VerifyUseLists());
+
         // Do optimizations that depend on the propagated type information.
         if (optimizer.Canonicalize()) {
           // Invoke Canonicalize twice in order to fully canonicalize patterns
diff --git a/runtime/vm/debugger.cc b/runtime/vm/debugger.cc
index f84dc2e..bd9cbf3 100644
--- a/runtime/vm/debugger.cc
+++ b/runtime/vm/debugger.cc
@@ -155,8 +155,7 @@
   if (event_handler_ != NULL) {
     Debugger* debugger = Isolate::Current()->debugger();
     ASSERT(debugger != NULL);
-    DebuggerEvent event;
-    event.type = type;
+    DebuggerEvent event(type);
     event.isolate_id = debugger->GetIsolateId();
     ASSERT(event.isolate_id != ILLEGAL_ISOLATE_ID);
     if (type == kIsolateInterrupted) {
@@ -239,7 +238,7 @@
 
 
 RawLibrary* ActivationFrame::Library() {
-  const Class& cls = Class::Handle(function().Owner());
+  const Class& cls = Class::Handle(function().origin());
   return cls.library();
 }
 
@@ -1044,8 +1043,7 @@
 
 void Debugger::SignalBpResolved(SourceBreakpoint* bpt) {
   if (event_handler_ != NULL) {
-    DebuggerEvent event;
-    event.type = kBreakpointResolved;
+    DebuggerEvent event(kBreakpointResolved);
     event.breakpoint = bpt;
     (*event_handler_)(&event);
   }
@@ -1390,8 +1388,7 @@
   ASSERT(obj_cache_ == NULL);
   in_event_notification_ = true;
   obj_cache_ = new RemoteObjectCache(64);
-  DebuggerEvent event;
-  event.type = kExceptionThrown;
+  DebuggerEvent event(kExceptionThrown);
   event.exception = &exc;
   (*event_handler_)(&event);
   in_event_notification_ = false;
@@ -1883,16 +1880,17 @@
 }
 
 
-void Debugger::SignalPausedEvent(ActivationFrame* top_frame) {
+void Debugger::SignalPausedEvent(ActivationFrame* top_frame,
+                                 SourceBreakpoint* bpt) {
   resume_action_ = kContinue;
   isolate_->set_single_step(false);
   ASSERT(!in_event_notification_);
   ASSERT(obj_cache_ == NULL);
   in_event_notification_ = true;
   obj_cache_ = new RemoteObjectCache(64);
-  DebuggerEvent event;
-  event.type = kBreakpointReached;
+  DebuggerEvent event(kBreakpointReached);
   event.top_frame = top_frame;
+  event.breakpoint = bpt;
   (*event_handler_)(&event);
   in_event_notification_ = false;
   obj_cache_ = NULL;  // Remote object cache is zone allocated.
@@ -1929,7 +1927,7 @@
   }
 
   stack_trace_ = CollectStackTrace();
-  SignalPausedEvent(frame);
+  SignalPausedEvent(frame, NULL);
 
   RemoveInternalBreakpoints();
   if (resume_action_ == kStepOver) {
@@ -1975,7 +1973,7 @@
 
   if (report_bp && (event_handler_ != NULL)) {
     stack_trace_ = stack_trace;
-    SignalPausedEvent(top_frame);
+    SignalPausedEvent(top_frame, bpt->src_bpt_);
     stack_trace_ = NULL;
   }
 
diff --git a/runtime/vm/debugger.h b/runtime/vm/debugger.h
index f68c023..f70debf 100644
--- a/runtime/vm/debugger.h
+++ b/runtime/vm/debugger.h
@@ -254,13 +254,22 @@
     kIsolateInterrupted = 6,
   };
   struct DebuggerEvent {
+    explicit DebuggerEvent(EventType event_type)
+        : type(event_type) {
+      top_frame = NULL;
+      breakpoint = NULL;
+      exception = NULL;
+      isolate_id = 0;
+    }
     EventType type;
-    union {
-      ActivationFrame* top_frame;
-      SourceBreakpoint* breakpoint;
-      const Object* exception;
-      Dart_Port isolate_id;
-    };
+    // type == kBreakpointReached.
+    ActivationFrame* top_frame;
+    // type == kBreakpointResolved, kBreakpointReached.
+    SourceBreakpoint* breakpoint;
+    // type == kExceptionThrown.
+    const Object* exception;
+    // type == kIsolate(Created|Shutdown|Interrupted).
+    Dart_Port isolate_id;
   };
   typedef void EventHandler(DebuggerEvent *event);
 
@@ -391,7 +400,8 @@
                                      const Code& code);
   static DebuggerStackTrace* CollectStackTraceNew();
   void SignalBpResolved(SourceBreakpoint *bpt);
-  void SignalPausedEvent(ActivationFrame* top_frame);
+  void SignalPausedEvent(ActivationFrame* top_frame,
+                         SourceBreakpoint* bpt);
 
   intptr_t nextId() { return next_id_++; }
 
diff --git a/runtime/vm/debugger_api_impl.cc b/runtime/vm/debugger_api_impl.cc
index dcee7a7..a2ec598 100644
--- a/runtime/vm/debugger_api_impl.cc
+++ b/runtime/vm/debugger_api_impl.cc
@@ -127,7 +127,12 @@
       const Library& lib = Library::Handle(top_frame->Library());
       location.library_id = lib.index();
       location.token_pos = top_frame->TokenPos();
-      (*paused_event_handler)(isolate_id, location);
+      intptr_t bp_id = 0;
+      if (event->breakpoint != NULL) {
+        ASSERT(event->breakpoint->id() != ILLEGAL_BREAKPOINT_ID);
+        bp_id = event->breakpoint->id();
+      }
+      (*paused_event_handler)(isolate_id, bp_id, location);
     }
   } else if (event->type == Debugger::kBreakpointResolved) {
     if (bp_resolved_handler != NULL) {
diff --git a/runtime/vm/debugger_api_impl_test.cc b/runtime/vm/debugger_api_impl_test.cc
index 18771f0..9089e5c 100644
--- a/runtime/vm/debugger_api_impl_test.cc
+++ b/runtime/vm/debugger_api_impl_test.cc
@@ -389,6 +389,7 @@
 
 
 static void InspectOptimizedStack_Breakpoint(Dart_IsolateId isolate_id,
+                                             intptr_t bp_id,
                                              const Dart_CodeLocation& loc) {
   Dart_StackTrace trace;
   Dart_GetStackTrace(&trace);
@@ -583,6 +584,7 @@
 
 
 void TestStepOutHandler(Dart_IsolateId isolate_id,
+                        intptr_t bp_id,
                         const Dart_CodeLocation& location) {
   Dart_StackTrace trace;
   Dart_GetStackTrace(&trace);
@@ -647,6 +649,7 @@
 
 
 void TestStepIntoHandler(Dart_IsolateId isolate_id,
+                         intptr_t bp_id,
                          const Dart_CodeLocation& location) {
   Dart_StackTrace trace;
   Dart_GetStackTrace(&trace);
@@ -728,6 +731,7 @@
 
 
 static void StepIntoHandler(Dart_IsolateId isolate_id,
+                            intptr_t bp_id,
                             const Dart_CodeLocation& location) {
   Dart_StackTrace trace;
   Dart_GetStackTrace(&trace);
@@ -810,6 +814,7 @@
 
 
 void TestSingleStepHandler(Dart_IsolateId isolate_id,
+                           intptr_t bp_id,
                            const Dart_CodeLocation& location) {
   Dart_StackTrace trace;
   Dart_GetStackTrace(&trace);
@@ -869,6 +874,7 @@
 
 
 static void ClosureBreakpointHandler(Dart_IsolateId isolate_id,
+                                     intptr_t bp_id,
                                      const Dart_CodeLocation& location) {
   Dart_StackTrace trace;
   Dart_GetStackTrace(&trace);
@@ -923,6 +929,7 @@
 
 
 static void ExprClosureBreakpointHandler(Dart_IsolateId isolate_id,
+                                         intptr_t bp_id,
                                          const Dart_CodeLocation& location) {
   Dart_StackTrace trace;
   Dart_GetStackTrace(&trace);
@@ -971,6 +978,7 @@
 static intptr_t bp_id_to_be_deleted;
 
 static void DeleteBreakpointHandler(Dart_IsolateId isolate_id,
+                                    intptr_t bp_id,
                                     const Dart_CodeLocation& location) {
   Dart_StackTrace trace;
   Dart_GetStackTrace(&trace);
@@ -997,7 +1005,8 @@
   // Remove the breakpoint after we've hit it twice
   if (breakpoint_hit_counter == 2) {
     if (verbose) OS::Print("uninstalling breakpoint\n");
-    Dart_Handle res = Dart_RemoveBreakpoint(bp_id_to_be_deleted);
+    EXPECT_EQ(bp_id_to_be_deleted, bp_id);
+    Dart_Handle res = Dart_RemoveBreakpoint(bp_id);
     EXPECT_VALID(res);
   }
 }
@@ -1041,6 +1050,7 @@
 
 
 static void InspectStaticFieldHandler(Dart_IsolateId isolate_id,
+                                      intptr_t bp_id,
                                       const Dart_CodeLocation& location) {
   Dart_StackTrace trace;
   Dart_GetStackTrace(&trace);
@@ -1419,6 +1429,7 @@
 
 static void StackTraceDump1BreakpointHandler(
                 Dart_IsolateId isolate_id,
+                intptr_t bp_id,
                 const Dart_CodeLocation& location) {
   Dart_StackTrace trace;
   Dart_GetStackTrace(&trace);
@@ -1736,6 +1747,7 @@
 
 
 void TestEvaluateHandler(Dart_IsolateId isolate_id,
+                         intptr_t bp_id,
                          const Dart_CodeLocation& location) {
   Dart_StackTrace trace;
   Dart_GetStackTrace(&trace);
diff --git a/runtime/vm/flow_graph_optimizer.cc b/runtime/vm/flow_graph_optimizer.cc
index 8c4febc..9e89082 100644
--- a/runtime/vm/flow_graph_optimizer.cc
+++ b/runtime/vm/flow_graph_optimizer.cc
@@ -101,7 +101,6 @@
   ASSERT(call->HasICData());
   if (call->ic_data()->NumberOfChecks() > 0) {
     // This occurs when an instance call has too many checks.
-    // TODO(srdjan): Replace IC call with megamorphic call.
     return false;
   }
   GrowableArray<intptr_t> class_ids(call->ic_data()->num_args_tested());
@@ -110,39 +109,45 @@
     intptr_t cid = call->PushArgumentAt(i)->value()->Type()->ToCid();
     class_ids.Add(cid);
   }
-  // TODO(srdjan): Test for number of arguments checked greater than 1.
-  if (class_ids.length() != 1) {
-    return false;
-  }
-  if (class_ids[0] != kDynamicCid) {
-    ArgumentsDescriptor args_desc(
-        Array::Handle(ArgumentsDescriptor::New(call->ArgumentCount(),
-                                               call->argument_names())));
-    const Class& receiver_class = Class::Handle(
-        Isolate::Current()->class_table()->At(class_ids[0]));
-    const Function& function = Function::Handle(
-        Resolver::ResolveDynamicForReceiverClass(
-            receiver_class,
-            call->function_name(),
-            args_desc));
-    if (function.IsNull()) {
+
+  for (intptr_t i = 0; i < class_ids.length(); i++) {
+    if (class_ids[i] == kDynamicCid) {
+      // Not all cid-s known.
       return false;
     }
-    // Create new ICData, do not modify the one attached to the instruction
-    // since it is attached to the assembly instruction itself.
-    // TODO(srdjan): Prevent modification of ICData object that is
-    // referenced in assembly code.
-    ICData& ic_data = ICData::ZoneHandle(ICData::New(
-        flow_graph_->parsed_function().function(),
-        call->function_name(),
-        Object::empty_array(),  // Dummy argument descriptor.
-        call->deopt_id(),
-        class_ids.length()));
-    ic_data.AddReceiverCheck(class_ids[0], function);
-    call->set_ic_data(&ic_data);
-    return true;
   }
-  return false;
+
+  ArgumentsDescriptor args_desc(
+      Array::Handle(ArgumentsDescriptor::New(call->ArgumentCount(),
+                                             call->argument_names())));
+  const Class& receiver_class = Class::Handle(
+      Isolate::Current()->class_table()->At(class_ids[0]));
+  const Function& function = Function::Handle(
+      Resolver::ResolveDynamicForReceiverClass(
+          receiver_class,
+          call->function_name(),
+          args_desc));
+  if (function.IsNull()) {
+    return false;
+  }
+  // Create new ICData, do not modify the one attached to the instruction
+  // since it is attached to the assembly instruction itself.
+  // TODO(srdjan): Prevent modification of ICData object that is
+  // referenced in assembly code.
+  ICData& ic_data = ICData::ZoneHandle(ICData::New(
+      flow_graph_->parsed_function().function(),
+      call->function_name(),
+      Object::empty_array(),  // Dummy argument descriptor.
+      call->deopt_id(),
+      class_ids.length()));
+  if (class_ids.length() > 1) {
+    ic_data.AddCheck(class_ids, function);
+  } else {
+    ASSERT(class_ids.length() == 1);
+    ic_data.AddReceiverCheck(class_ids[0], function);
+  }
+  call->set_ic_data(&ic_data);
+  return true;
 }
 
 
@@ -6905,20 +6910,17 @@
 }
 
 
-void ConstantPropagator::VisitBinaryMintOp(
-    BinaryMintOpInstr* instr) {
+void ConstantPropagator::VisitBinaryMintOp(BinaryMintOpInstr* instr) {
   HandleBinaryOp(instr, instr->op_kind(), *instr->left(), *instr->right());
 }
 
 
-void ConstantPropagator::VisitShiftMintOp(
-    ShiftMintOpInstr* instr) {
+void ConstantPropagator::VisitShiftMintOp(ShiftMintOpInstr* instr) {
   HandleBinaryOp(instr, instr->op_kind(), *instr->left(), *instr->right());
 }
 
 
-void ConstantPropagator::VisitUnaryMintOp(
-    UnaryMintOpInstr* instr) {
+void ConstantPropagator::VisitUnaryMintOp(UnaryMintOpInstr* instr) {
   // TODO(kmillikin): Handle unary operations.
   SetValue(instr, non_constant_);
 }
diff --git a/runtime/vm/flow_graph_type_propagator.cc b/runtime/vm/flow_graph_type_propagator.cc
index 6db56c5..249bcf1 100644
--- a/runtime/vm/flow_graph_type_propagator.cc
+++ b/runtime/vm/flow_graph_type_propagator.cc
@@ -1009,7 +1009,8 @@
   return CompileType::FromCid(kSmiCid);
 }
 
-
+// Note that MintOp may produce Smi-s as result of an
+// appended BoxIntegerInstr node.
 CompileType BinaryMintOpInstr::ComputeType() const {
   return CompileType::Int();
 }
diff --git a/runtime/vm/json_stream.cc b/runtime/vm/json_stream.cc
index 1b89e24..ae06d19 100644
--- a/runtime/vm/json_stream.cc
+++ b/runtime/vm/json_stream.cc
@@ -114,6 +114,14 @@
 }
 
 
+void JSONStream::PrintValue(const Field& field,
+                            const Instance& instance,
+                            bool ref) {
+  PrintCommaIfNeeded();
+  field.PrintToJSONStreamWithInstance(this, instance, ref);
+}
+
+
 void JSONStream::PrintPropertyBool(const char* name, bool b) {
   PrintPropertyName(name);
   PrintValueBool(b);
@@ -211,7 +219,7 @@
 
 
 void JSONObject::AddPropertyF(const char* name,
-                                      const char* format, ...) const {
+                              const char* format, ...) const {
   stream_->PrintPropertyName(name);
   va_list args;
   va_start(args, format);
@@ -247,4 +255,3 @@
 }
 
 }  // namespace dart
-
diff --git a/runtime/vm/json_stream.h b/runtime/vm/json_stream.h
index 0a544d5..5410314 100644
--- a/runtime/vm/json_stream.h
+++ b/runtime/vm/json_stream.h
@@ -10,9 +10,11 @@
 
 namespace dart {
 
-class Object;
-class JSONObject;
+class Field;
+class Instance;
 class JSONArray;
+class JSONObject;
+class Object;
 
 class JSONStream : ValueObject {
  public:
@@ -53,6 +55,7 @@
   void PrintValue(const char* s);
   void PrintfValue(const char* format, ...) PRINTF_ATTRIBUTE(2, 3);
   void PrintValue(const Object& o, bool ref = true);
+  void PrintValue(const Field& f, const Instance& instance, bool ref = true);
 
   void PrintPropertyBool(const char* name, bool b);
   void PrintProperty(const char* name, intptr_t i);
@@ -145,6 +148,12 @@
   void AddValue(const Object& obj, bool ref = true) const {
     stream_->PrintValue(obj, ref);
   }
+  // Print a field bound to a value.  Value is looked up from 'instance'.
+  void AddValue(const Field& field,
+                const Instance& instance,
+                bool ref = true) const {
+    stream_->PrintValue(field, instance, ref);
+  }
   void AddValueF(const char* format, ...) const PRINTF_ATTRIBUTE(2, 3);
 
  private:
diff --git a/runtime/vm/object.cc b/runtime/vm/object.cc
index b138c2a..01c7690 100644
--- a/runtime/vm/object.cc
+++ b/runtime/vm/object.cc
@@ -902,6 +902,9 @@
   cls = Class::New<Type>();
   object_store->set_type_class(cls);
 
+  cls = Class::New<TypeRef>();
+  object_store->set_type_ref_class(cls);
+
   cls = Class::New<TypeParameter>();
   object_store->set_type_parameter_class(cls);
 
@@ -1033,6 +1036,10 @@
   RegisterPrivateClass(cls, Symbols::Type(), core_lib);
   pending_classes.Add(cls);
 
+  cls = object_store->type_ref_class();
+  RegisterPrivateClass(cls, Symbols::TypeRef(), core_lib);
+  pending_classes.Add(cls);
+
   cls = object_store->type_parameter_class();
   RegisterPrivateClass(cls, Symbols::TypeParameter(), core_lib);
   pending_classes.Add(cls);
@@ -1290,6 +1297,9 @@
   cls = Class::New<Type>();
   object_store->set_type_class(cls);
 
+  cls = Class::New<TypeRef>();
+  object_store->set_type_ref_class(cls);
+
   cls = Class::New<TypeParameter>();
   object_store->set_type_parameter_class(cls);
 
@@ -1991,6 +2001,7 @@
 void Class::set_super_type(const AbstractType& value) const {
   ASSERT(value.IsNull() ||
          (value.IsType() && !value.IsDynamicType()) ||
+         value.IsTypeRef() ||
          value.IsBoundedType() ||
          value.IsMixinAppType());
   StorePointer(&raw_ptr()->super_type_, value.raw());
@@ -3513,9 +3524,6 @@
         // the presence of a malformed bound in checked mode).
         continue;
       }
-      ASSERT((!raw_instantiated && type.IsTypeParameter()) ||
-             type.IsBoundedType() ||
-             type.IsMalformed());
       return false;
     }
     type_class = type.type_class();
@@ -3579,8 +3587,14 @@
 
 
 void TypeArguments::SetTypeAt(intptr_t index, const AbstractType& value) const {
-  ASSERT(!IsCanonical());
-  StorePointer(TypeAddr(index), value.raw());
+  const AbstractType& type_arg = AbstractType::Handle(TypeAt(index));
+  if (type_arg.IsTypeRef()) {
+    if (value.raw() != type_arg.raw()) {
+      TypeRef::Cast(type_arg).set_type(value);
+    }
+  } else {
+    StorePointer(TypeAddr(index), value.raw());
+  }
 }
 
 
@@ -3915,6 +3929,14 @@
   TypeArguments& result = TypeArguments::Handle(isolate);
   result ^= table.At(index);
   if (result.IsNull()) {
+    // Canonicalize each type argument.
+    const intptr_t num_types = Length();
+    AbstractType& type = AbstractType::Handle(isolate);
+    for (intptr_t i = 0; i < num_types; i++) {
+      type = TypeAt(i);
+      type = type.Canonicalize();
+      SetTypeAt(i, type);
+    }
     // Make sure we have an old space object and add it to the table.
     if (this->IsNew()) {
       result ^= Object::Clone(*this, Heap::kOld);
@@ -5896,8 +5918,14 @@
   return chars;
 }
 
-
 void Field::PrintToJSONStream(JSONStream* stream, bool ref) const {
+  PrintToJSONStreamWithInstance(stream, Object::null_instance(), ref);
+}
+
+
+void Field::PrintToJSONStreamWithInstance(JSONStream* stream,
+                                          const Instance& instance,
+                                          bool ref) const {
   JSONObject jsobj(stream);
   const char* internal_field_name = String::Handle(name()).ToCString();
   const char* field_name = String::Handle(UserVisibleName()).ToCString();
@@ -5910,6 +5938,9 @@
   if (is_static()) {
     const Object& valueObj = Object::Handle(value());
     jsobj.AddProperty("value", valueObj);
+  } else if (!instance.IsNull()) {
+    const Object& valueObj = Object::Handle(instance.GetField(*this));
+    jsobj.AddProperty("value", valueObj);
   }
   Class& cls = Class::Handle(owner());
   jsobj.AddProperty("owner", cls);
@@ -11393,7 +11424,7 @@
     }
     const Type& type =
         Type::Handle(Type::New(cls, type_arguments, Scanner::kDummyTokenIndex));
-    const String& type_name = String::Handle(type.Name());
+    const String& type_name = String::Handle(type.UserVisibleName());
     // Calculate the size of the string.
     intptr_t len = OS::SNPrint(NULL, 0, kFormat, type_name.ToCString()) + 1;
     char* chars = Isolate::Current()->current_zone()->Alloc<char>(len);
@@ -11403,6 +11434,17 @@
 }
 
 
+const char* Instance::ToUserCString(intptr_t maxLen) const {
+  if (raw() == Object::sentinel().raw()) {
+    return "<not initialized>";
+  } else if (raw() == Object::transition_sentinel().raw()) {
+    return "<being initialized>";
+  } else {
+    return ToCString();
+  }
+}
+
+
 void Instance::PrintToJSONStream(JSONStream* stream, bool ref) const {
   ObjectIdRing* ring = Isolate::Current()->object_id_ring();
   intptr_t id = ring->GetIdForObject(raw());
@@ -11411,15 +11453,35 @@
   jsobj.AddProperty("type", JSONType(ref));
   jsobj.AddProperty("id", id);
 
+  Class& cls = Class::Handle(this->clazz());
+  jsobj.AddProperty("class", cls);
+
   // Set the "preview" property for this instance.
   if (IsNull()) {
     jsobj.AddProperty("preview", "null");
-  } else if (raw() == Object::sentinel().raw() ||
-             raw() == Object::transition_sentinel().raw()) {
-    jsobj.AddProperty("preview", "<uninitialized>");
   } else {
-    // TODO(turnidge): Handle special characters?  Truncate?
-    jsobj.AddProperty("preview", ToCString());
+    jsobj.AddProperty("preview", ToUserCString(40));
+  }
+  if (ref) {
+    return;
+  }
+
+  // Walk the superclass chain, adding all instance fields.
+  {
+    JSONArray jsarr(&jsobj, "fields");
+    while (!cls.IsNull()) {
+      const Array& field_array = Array::Handle(cls.fields());
+      Field& field = Field::Handle();
+      if (!field_array.IsNull()) {
+        for (intptr_t i = 0; i < field_array.Length(); i++) {
+          field ^= field_array.At(i);
+          if (!field.is_static()) {
+            jsarr.AddValue(field, *this);
+          }
+        }
+      }
+      cls = cls.SuperClass();
+    }
   }
 }
 
@@ -11523,8 +11585,8 @@
 
 bool AbstractType::Equals(const Instance& other) const {
   // AbstractType is an abstract class.
-  ASSERT(raw() == AbstractType::null());
-  return other.IsNull();
+  UNREACHABLE();
+  return false;
 }
 
 
@@ -11645,7 +11707,8 @@
     first_type_param_index = 0;
   }
   String& type_name = String::Handle();
-  if (num_type_params == 0) {
+  if ((num_type_params == 0) ||
+      args.IsRaw(first_type_param_index, num_type_params)) {
     type_name = class_name.raw();
   } else {
     const String& args_name = String::Handle(
@@ -12014,17 +12077,6 @@
 }
 
 
-RawString* Type::TypeClassName() const {
-  if (HasResolvedTypeClass()) {
-    const Class& cls = Class::Handle(type_class());
-    return cls.Name();
-  } else {
-    const UnresolvedClass& cls = UnresolvedClass::Handle(unresolved_class());
-    return cls.Name();
-  }
-}
-
-
 RawAbstractTypeArguments* Type::arguments() const {
   return raw_ptr()->arguments_;
 }
@@ -12046,7 +12098,7 @@
 RawAbstractType* Type::InstantiateFrom(
     const AbstractTypeArguments& instantiator_type_arguments,
     Error* bound_error) const {
-  ASSERT(IsResolved());
+  ASSERT(IsFinalized() || IsBeingFinalized());
   ASSERT(!IsInstantiated());
   // Return the uninstantiated type unchanged if malformed. No copy needed.
   if (IsMalformed()) {
@@ -12075,6 +12127,10 @@
   if (raw() == other.raw()) {
     return true;
   }
+  if (other.IsTypeRef()) {
+    // TODO(regis): Use trail. For now, we "unfold" the right hand type.
+    return Equals(AbstractType::Handle(TypeRef::Cast(other).type()));
+  }
   if (!other.IsType()) {
     return false;
   }
@@ -12093,13 +12149,17 @@
     return true;
   }
   const Class& cls = Class::Handle(type_class());
+  const intptr_t num_type_params = cls.NumTypeParameters();
+  if (num_type_params == 0) {
+    // Shortcut unnecessary handle allocation below.
+    return true;
+  }
+  const intptr_t num_type_args = cls.NumTypeArguments();
+  const intptr_t from_index = num_type_args - num_type_params;
   const AbstractTypeArguments& type_args = AbstractTypeArguments::Handle(
       arguments());
   const AbstractTypeArguments& other_type_args = AbstractTypeArguments::Handle(
       other_type.arguments());
-  const intptr_t num_type_args = cls.NumTypeArguments();
-  const intptr_t num_type_params = cls.NumTypeParameters();
-  const intptr_t from_index = num_type_args - num_type_params;
   if (type_args.IsNull()) {
     return other_type_args.IsRaw(from_index, num_type_params);
   }
@@ -12306,6 +12366,135 @@
 }
 
 
+bool TypeRef::IsInstantiated() const {
+  if (is_being_checked()) {
+    return true;
+  }
+  set_is_being_checked(true);
+  const bool result = AbstractType::Handle(type()).IsInstantiated();
+  set_is_being_checked(false);
+  return result;
+}
+
+
+bool TypeRef::Equals(const Instance& other) const {
+  // TODO(regis): Use trail instead of mark bit.
+  if (raw() == other.raw()) {
+    return true;
+  }
+  if (is_being_checked()) {
+    return true;
+  }
+  set_is_being_checked(true);
+  const bool result = AbstractType::Handle(type()).Equals(other);
+  set_is_being_checked(false);
+  return result;
+}
+
+
+RawAbstractType* TypeRef::InstantiateFrom(
+    const AbstractTypeArguments& instantiator_type_arguments,
+    Error* bound_error) const {
+  const AbstractType& ref_type = AbstractType::Handle(type());
+  // TODO(regis): Use trail instead of mark bit plus temporary redirection,
+  // because it could be marked for another reason.
+  if (is_being_checked()) {
+    ASSERT(ref_type.IsTypeRef());
+    return ref_type.raw();
+  }
+  set_is_being_checked(true);
+  ASSERT(!ref_type.IsTypeRef());
+  const TypeRef& instantiated_type_ref = TypeRef::Handle(
+      TypeRef::New(ref_type));
+  // TODO(regis): instantiated_type_ref should be stored in the trail instead.
+  set_type(instantiated_type_ref);
+  const AbstractType& instantiated_ref_type = AbstractType::Handle(
+      ref_type.InstantiateFrom(instantiator_type_arguments, bound_error));
+  instantiated_type_ref.set_type(instantiated_ref_type);
+  set_type(ref_type);
+  set_is_being_checked(false);
+  return instantiated_type_ref.raw();
+}
+
+
+void TypeRef::set_type(const AbstractType& value) const {
+  ASSERT(value.HasResolvedTypeClass());
+  StorePointer(&raw_ptr()->type_, value.raw());
+}
+
+
+void TypeRef::set_is_being_checked(bool value) const {
+  raw_ptr()->is_being_checked_ = value;
+}
+
+
+// This function only canonicalizes the referenced type, but not the TypeRef
+// itself, since it cannot be canonical by definition.
+// Consider the type Derived, where class Derived extends Base<Derived>.
+// The first type argument of its flattened type argument vector is Derived,
+// i.e. itself, but pointer equality is not possible.
+RawAbstractType* TypeRef::Canonicalize() const {
+  // TODO(regis): Use trail, not mark bit.
+  if (is_being_checked()) {
+    return raw();
+  }
+  set_is_being_checked(true);
+  AbstractType& ref_type = AbstractType::Handle(type());
+  ASSERT(!ref_type.IsTypeRef());
+  ref_type = ref_type.Canonicalize();
+  set_type(ref_type);
+  // No need to call SetCanonical(), since a TypeRef cannot be canonical by
+  // definition.
+  set_is_being_checked(false);
+  // We return the referenced type instead of the TypeRef in order to provide
+  // pointer equality in simple cases, e.g. in language/f_bounded_equality_test.
+  return ref_type.raw();
+}
+
+
+intptr_t TypeRef::Hash() const {
+  // TODO(regis): Use trail and hash of referenced type.
+  // Do not calculate the hash of the referenced type to avoid cycles.
+  uword result = Class::Handle(AbstractType::Handle(type()).type_class()).id();
+  return FinalizeHash(result);
+}
+
+
+RawTypeRef* TypeRef::New() {
+  ASSERT(Isolate::Current()->object_store()->type_ref_class() != Class::null());
+  RawObject* raw = Object::Allocate(TypeRef::kClassId,
+                                    TypeRef::InstanceSize(),
+                                    Heap::kOld);
+  return reinterpret_cast<RawTypeRef*>(raw);
+}
+
+
+RawTypeRef* TypeRef::New(const AbstractType& type) {
+  const TypeRef& result = TypeRef::Handle(TypeRef::New());
+  result.set_type(type);
+  result.set_is_being_checked(false);
+  return result.raw();
+}
+
+
+const char* TypeRef::ToCString() const {
+  const char* format = "TypeRef: %s%s";
+  const char* type_cstr = String::Handle(Class::Handle(AbstractType::Handle(
+      type()).type_class()).Name()).ToCString();
+  const char* args_cstr = (AbstractType::Handle(
+      type()).arguments() == AbstractTypeArguments::null()) ? "" : "<...>";
+  intptr_t len = OS::SNPrint(NULL, 0, format, type_cstr, args_cstr) + 1;
+  char* chars = Isolate::Current()->current_zone()->Alloc<char>(len);
+  OS::SNPrint(chars, len, format, type_cstr, args_cstr);
+  return chars;
+}
+
+
+void TypeRef::PrintToJSONStream(JSONStream* stream, bool ref) const {
+  JSONObject jsobj(stream);
+}
+
+
 void TypeParameter::set_is_finalized() const {
   ASSERT(!IsFinalized());
   set_type_state(RawTypeParameter::kFinalizedUninstantiated);
@@ -12316,6 +12505,10 @@
   if (raw() == other.raw()) {
     return true;
   }
+  if (other.IsTypeRef()) {
+    // TODO(regis): Use trail. For now, we "unfold" the right hand type.
+    return Equals(AbstractType::Handle(TypeRef::Cast(other).type()));
+  }
   if (!other.IsTypeParameter()) {
     return false;
   }
@@ -12360,7 +12553,24 @@
   if (instantiator_type_arguments.IsNull()) {
     return Type::DynamicType();
   }
-  return instantiator_type_arguments.TypeAt(index());
+  const AbstractType& type_arg = AbstractType::Handle(
+      instantiator_type_arguments.TypeAt(index()));
+  // There is no need to canonicalize the instantiated type parameter, since all
+  // type arguments are canonicalized at type finalization time. It would be too
+  // early to canonicalize the returned type argument here, since instantiation
+  // not only happens at run time, but also during type finalization.
+  // However, if the type argument is a reference to a canonical type, we
+  // return the referenced canonical type instead of the type reference to
+  // provide pointer equality in some simple cases, e.g. in
+  // language/f_bounded_equality_test.
+  if (type_arg.IsTypeRef()) {
+    const AbstractType& ref_type = AbstractType::Handle(
+        TypeRef::Cast(type_arg).type());
+    if (ref_type.IsCanonical()) {
+      return ref_type.raw();
+    }
+  }
+  return type_arg.raw();
 }
 
 
@@ -12425,8 +12635,7 @@
 
 intptr_t TypeParameter::Hash() const {
   ASSERT(IsFinalized());
-  uword result = 0;
-  result += Class::Handle(parameterized_class()).id();
+  uword result = Class::Handle(parameterized_class()).id();
   // Do not include the hash of the bound, which could lead to cycles.
   result <<= index();
   return FinalizeHash(result);
@@ -12517,6 +12726,10 @@
   if (raw() == other.raw()) {
     return true;
   }
+  if (other.IsTypeRef()) {
+    // TODO(regis): Use trail. For now, we "unfold" the right hand type.
+    return Equals(AbstractType::Handle(TypeRef::Cast(other).type()));
+  }
   if (!other.IsBoundedType()) {
     return false;
   }
@@ -12540,7 +12753,7 @@
 
 
 void BoundedType::set_type(const AbstractType& value) const {
-  ASSERT(value.IsFinalized());
+  ASSERT(value.IsFinalized() || value.IsBeingFinalized());
   ASSERT(!value.IsMalformed());
   StorePointer(&raw_ptr()->type_, value.raw());
 }
@@ -12620,13 +12833,9 @@
 
 
 intptr_t BoundedType::Hash() const {
-  uword result = 0;
-  result += AbstractType::Handle(type()).Hash();
+  uword result = AbstractType::Handle(type()).Hash();
   // Do not include the hash of the bound, which could lead to cycles.
-  TypeParameter& type_param = TypeParameter::Handle(type_parameter());
-  if (!type_param.IsNull()) {
-    result += type_param.Hash();
-  }
+  result += TypeParameter::Handle(type_parameter()).Hash();
 return FinalizeHash(result);
 }
 
@@ -14224,6 +14433,98 @@
 }
 
 
+static bool IsAsciiPrintChar(intptr_t codePoint) {
+  return codePoint >= ' ' && codePoint <= '~';
+}
+
+
+// Does not null-terminate.
+intptr_t String::EscapedString(char* buffer, int maxLen) const {
+  int pos = 0;
+
+  CodePointIterator cpi(*this);
+  while (cpi.Next()) {
+    int32_t codePoint = cpi.Current();
+    if (IsSpecialCharacter(codePoint)) {
+      if (pos + 2 > maxLen) {
+        return pos;
+      }
+      buffer[pos++] = '\\';
+      buffer[pos++] = SpecialCharacter(codePoint);
+    } else if (IsAsciiPrintChar(codePoint)) {
+      buffer[pos++] = codePoint;
+    } else {
+      if (pos + 6 > maxLen) {
+        return pos;
+      }
+      pos += OS::SNPrint((buffer + pos), (maxLen - pos), "\\u%04x", codePoint);
+    }
+    if (pos == maxLen) {
+      return pos;
+    }
+  }
+  return pos;
+}
+
+
+intptr_t String::EscapedStringLen(intptr_t tooLong) const {
+  intptr_t len = 0;
+
+  CodePointIterator cpi(*this);
+  while (cpi.Next()) {
+    int32_t codePoint = cpi.Current();
+    if (IsSpecialCharacter(codePoint)) {
+      len += 2;  // e.g. "\n"
+    } else if (IsAsciiPrintChar(codePoint)) {
+      len += 1;
+    } else {
+      len += 6;  // e.g. "\u0000".
+    }
+    if (len > tooLong) {
+      // No point going further.
+      break;
+    }
+  }
+  return len;
+}
+
+
+const char* String::ToUserCString(intptr_t maxLen) const {
+  // Compute the needed length for the buffer.
+  const intptr_t escapedLen = EscapedStringLen(maxLen);
+  intptr_t printLen = escapedLen;
+  intptr_t bufferLen = escapedLen + 2;  // +2 for quotes.
+  if (bufferLen > maxLen) {
+    bufferLen = maxLen;     // Truncate.
+    printLen = maxLen - 5;  // -2 for quotes, -3 for elipsis.
+  }
+
+  // Allocate the buffer.
+  Zone* zone = Isolate::Current()->current_zone();
+  char* buffer = zone->Alloc<char>(bufferLen + 1);
+
+  // Leading quote.
+  intptr_t pos = 0;
+  buffer[pos++] = '\"';
+
+  // Print escaped string.
+  pos += EscapedString((buffer + pos), printLen);
+
+  // Trailing quote.
+  buffer[pos++] = '\"';
+
+  if (printLen < escapedLen) {
+    buffer[pos++] = '.';
+    buffer[pos++] = '.';
+    buffer[pos++] = '.';
+  }
+  ASSERT(pos <= bufferLen);
+  buffer[pos++] = '\0';
+
+  return buffer;
+}
+
+
 void String::PrintToJSONStream(JSONStream* stream, bool ref) const {
   Instance::PrintToJSONStream(stream, ref);
 }
@@ -15272,7 +15573,7 @@
   if (IsNull()) {
     return "_GrowableList NULL";
   }
-  const char* format = "_GrowableList len:%" Pd "";
+  const char* format = "Instance(length:%" Pd ") of '_GrowableList'";
   intptr_t len = OS::SNPrint(NULL, 0, format, Length()) + 1;
   char* chars = Isolate::Current()->current_zone()->Alloc<char>(len);
   OS::SNPrint(chars, len, format, Length());
diff --git a/runtime/vm/object.h b/runtime/vm/object.h
index d41ba4c..51d6418 100644
--- a/runtime/vm/object.h
+++ b/runtime/vm/object.h
@@ -2194,6 +2194,12 @@
   static bool IsGetterName(const String& function_name);
   static bool IsSetterName(const String& function_name);
 
+  // When we print a field to a JSON stream, we want to make it appear
+  // that the value is a property of the field, so we allow the actual
+  // instance to be supplied here.
+  virtual void PrintToJSONStreamWithInstance(
+      JSONStream* stream, const Instance& instance, bool ref) const;
+
  private:
   enum {
     kConstBit = 1,
@@ -3962,6 +3968,10 @@
   // error object if evaluating the expression fails.
   RawObject* Evaluate(const String& expr) const;
 
+  // Returns a string representation of this instance in a form
+  // that is suitable for an end user.
+  virtual const char* ToUserCString(intptr_t maxLen = 40) const;
+
   static intptr_t InstanceSize() {
     return RoundedAllocationSize(sizeof(RawInstance));
   }
@@ -4158,7 +4168,6 @@
   virtual RawClass* type_class() const;
   void set_type_class(const Object& value) const;
   virtual RawUnresolvedClass* unresolved_class() const;
-  RawString* TypeClassName() const;
   virtual RawAbstractTypeArguments* arguments() const;
   void set_arguments(const AbstractTypeArguments& value) const;
   virtual intptr_t token_pos() const { return raw_ptr()->token_pos_; }
@@ -4240,6 +4249,67 @@
 };
 
 
+// A TypeRef is used to break cycles in the representation of recursive types.
+// Its only field is the recursive AbstractType it refers to.
+// Note that the cycle always involves type arguments.
+class TypeRef : public AbstractType {
+ public:
+  virtual bool IsFinalized() const {
+    return AbstractType::Handle(type()).IsFinalized();
+  }
+  virtual bool IsBeingFinalized() const {
+    return AbstractType::Handle(type()).IsBeingFinalized();
+  }
+  virtual bool IsMalformed() const {
+    return AbstractType::Handle(type()).IsMalformed();
+  }
+  virtual bool IsMalbounded() const {
+    return AbstractType::Handle(type()).IsMalbounded();
+  }
+  virtual bool IsMalformedOrMalbounded() const {
+    return AbstractType::Handle(type()).IsMalformedOrMalbounded();
+  }
+  virtual bool IsResolved() const { return true; }
+  virtual bool HasResolvedTypeClass() const { return true; }
+  RawAbstractType* type() const { return raw_ptr()->type_; }
+  void set_type(const AbstractType& value) const;
+  virtual RawClass* type_class() const {
+    return AbstractType::Handle(type()).type_class();
+  }
+  virtual RawAbstractTypeArguments* arguments() const {
+    return AbstractType::Handle(type()).arguments();
+  }
+  virtual intptr_t token_pos() const {
+    return AbstractType::Handle(type()).token_pos();
+  }
+  virtual bool IsInstantiated() const;
+  virtual bool Equals(const Instance& other) const;
+  virtual RawAbstractType* InstantiateFrom(
+      const AbstractTypeArguments& instantiator_type_arguments,
+      Error* bound_error) const;
+  virtual RawAbstractType* Canonicalize() const;
+
+  virtual intptr_t Hash() const;
+
+  static intptr_t InstanceSize() {
+    return RoundedAllocationSize(sizeof(RawTypeRef));
+  }
+
+  static RawTypeRef* New(const AbstractType& type);
+
+ private:
+  bool is_being_checked() const {
+    return raw_ptr()->is_being_checked_;
+  }
+  void set_is_being_checked(bool value) const;
+
+  static RawTypeRef* New();
+
+  FINAL_HEAP_OBJECT_IMPLEMENTATION(TypeRef, AbstractType);
+  friend class Class;
+};
+
+
 // A TypeParameter represents a type parameter of a parameterized class.
 // It specifies its index (and its name for debugging purposes), as well as its
 // upper bound.
@@ -4894,6 +4964,9 @@
                           void* peer,
                           Dart_PeerFinalizer cback) const;
 
+  // Produces a quoted, escaped, (possibly) truncated string.
+  const char* ToUserCString(intptr_t maxLen = 40) const;
+
   // Creates a new String object from a C string that is assumed to contain
   // UTF-8 encoded characters and '\0' is considered a termination character.
   // TODO(7123) - Rename this to FromCString(....).
@@ -5018,6 +5091,9 @@
                            CallbackType new_symbol,
                            Snapshot::Kind kind);
 
+  intptr_t EscapedString(char* buffer, int maxLen) const;
+  intptr_t EscapedStringLen(intptr_t tooLong) const;
+
   FINAL_HEAP_OBJECT_IMPLEMENTATION(String, Instance);
 
   friend class Class;
diff --git a/runtime/vm/object_store.h b/runtime/vm/object_store.h
index 9e75cc4..866f62c 100644
--- a/runtime/vm/object_store.h
+++ b/runtime/vm/object_store.h
@@ -72,6 +72,9 @@
   RawClass* type_class() const { return type_class_; }
   void set_type_class(const Class& value) { type_class_ = value.raw(); }
 
+  RawClass* type_ref_class() const { return type_ref_class_; }
+  void set_type_ref_class(const Class& value) { type_ref_class_ = value.raw(); }
+
   RawClass* type_parameter_class() const { return type_parameter_class_; }
   void set_type_parameter_class(const Class& value) {
     type_parameter_class_ = value.raw();
@@ -421,6 +424,7 @@
   RawType* function_type_;
   RawType* function_impl_type_;
   RawClass* type_class_;
+  RawClass* type_ref_class_;
   RawClass* type_parameter_class_;
   RawClass* bounded_type_class_;
   RawClass* mixin_app_type_class_;
diff --git a/runtime/vm/object_test.cc b/runtime/vm/object_test.cc
index 7a017b5..ec1fc42 100644
--- a/runtime/vm/object_test.cc
+++ b/runtime/vm/object_test.cc
@@ -3627,4 +3627,99 @@
   EXPECT(array.IsArray());
 }
 
+
+TEST_CASE(ToUserCString) {
+  const char* kScriptChars =
+      "var simple = 'simple';\n"
+      "var escapes = 'stuff\\n\\r\\f\\b\\t\\v\\'\"\\$stuff';\n"
+      "var uescapes = 'stuff\\u0001\\u0002stuff';\n"
+      "var toolong = "
+      "'01234567890123456789012345678901234567890123456789howdy';\n"
+      "var toolong2 = "
+      "'0123456789012345678901234567890123\\t567890123456789howdy';\n"
+      "var toolong3 = "
+      "'012345678901234567890123456789\\u0001567890123456789howdy';\n"
+      "\n"
+      "class _Cobra { }\n"
+      "var instance = new _Cobra();\n"
+      "\n"
+      "var simple_list = [1,2,'otter'];\n"
+      "\n"
+      "var simple_map = {1: 2, 2: 'otter'};\n";
+  Dart_Handle lib = TestCase::LoadTestScript(kScriptChars, NULL);
+  EXPECT_VALID(lib);
+
+  Instance& obj = Instance::Handle();
+  Dart_Handle result;
+
+  // Simple string.
+  result = Dart_GetField(lib, NewString("simple"));
+  EXPECT_VALID(result);
+  obj ^= Api::UnwrapHandle(result);
+  EXPECT_STREQ("\"simple\"", obj.ToUserCString());
+
+  // Escaped chars.
+  result = Dart_GetField(lib, NewString("escapes"));
+  EXPECT_VALID(result);
+  obj ^= Api::UnwrapHandle(result);
+  EXPECT_STREQ("\"stuff\\n\\r\\f\\b\\t\\v'\\\"\\$stuff\"",
+               obj.ToUserCString());
+
+  // U-escaped chars.
+  result = Dart_GetField(lib, NewString("uescapes"));
+  EXPECT_VALID(result);
+  obj ^= Api::UnwrapHandle(result);
+  EXPECT_STREQ("\"stuff\\u0001\\u0002stuff\"", obj.ToUserCString());
+
+  // Truncation.
+  result = Dart_GetField(lib, NewString("toolong"));
+  EXPECT_VALID(result);
+  obj ^= Api::UnwrapHandle(result);
+  EXPECT_STREQ("\"01234567890123456789012345678901234\"...",
+               obj.ToUserCString());
+
+  // Truncation.  Custom limit.
+  result = Dart_GetField(lib, NewString("toolong"));
+  EXPECT_VALID(result);
+  obj ^= Api::UnwrapHandle(result);
+  EXPECT_STREQ("\"01234\"...", obj.ToUserCString(10));
+
+  // Truncation, limit is in escape.
+  result = Dart_GetField(lib, NewString("toolong2"));
+  EXPECT_VALID(result);
+  obj ^= Api::UnwrapHandle(result);
+  EXPECT_STREQ("\"0123456789012345678901234567890123\"...",
+               obj.ToUserCString());
+
+  // Truncation, limit is in u-escape
+  result = Dart_GetField(lib, NewString("toolong3"));
+  EXPECT_VALID(result);
+  obj ^= Api::UnwrapHandle(result);
+  EXPECT_STREQ("\"012345678901234567890123456789\"...",
+               obj.ToUserCString());
+
+  // Instance of a class.
+  result = Dart_GetField(lib, NewString("instance"));
+  EXPECT_VALID(result);
+  obj ^= Api::UnwrapHandle(result);
+  EXPECT_STREQ("Instance of '_Cobra'", obj.ToUserCString());
+
+  // Simple list.
+  //
+  // TODO(turnidge): Consider showing something like: [1, 2, 'otter'].
+  result = Dart_GetField(lib, NewString("simple_list"));
+  EXPECT_VALID(result);
+  obj ^= Api::UnwrapHandle(result);
+  EXPECT_STREQ("Instance(length:3) of '_GrowableList'",
+               obj.ToUserCString());
+
+  // Simple map.
+  //
+  // TODO(turnidge): Consider showing something like: {1: 2, 2: 'otter'}
+  result = Dart_GetField(lib, NewString("simple_map"));
+  EXPECT_VALID(result);
+  obj ^= Api::UnwrapHandle(result);
+  EXPECT_STREQ("Instance of '_LinkedHashMap'", obj.ToUserCString());
+}
+
 }  // namespace dart
diff --git a/runtime/vm/parser.cc b/runtime/vm/parser.cc
index 66d3e48..7ffa22e 100644
--- a/runtime/vm/parser.cc
+++ b/runtime/vm/parser.cc
@@ -8361,7 +8361,7 @@
           type_parameter ^= ClassFinalizer::FinalizeType(
               current_class(),
               TypeParameter::Cast(left->AsPrimaryNode()->primary()),
-              ClassFinalizer::kFinalize);
+              ClassFinalizer::kCanonicalize);
           ASSERT(!type_parameter.IsMalformed());
           left = new TypeNode(primary->token_pos(), type_parameter);
         } else {
@@ -8438,7 +8438,7 @@
           type_parameter ^= ClassFinalizer::FinalizeType(
               current_class(),
               TypeParameter::Cast(primary->primary()),
-              ClassFinalizer::kFinalize);
+              ClassFinalizer::kCanonicalize);
           ASSERT(!type_parameter.IsMalformed());
           array = new TypeNode(primary->token_pos(), type_parameter);
         } else {
@@ -8503,9 +8503,8 @@
                                             NULL);  // No existing function.
         } else if (primary->primary().IsClass()) {
           const Class& type_class = Class::Cast(primary->primary());
-          AbstractType& type = Type::ZoneHandle(
-              Type::New(type_class, TypeArguments::Handle(),
-                        primary->token_pos(), Heap::kOld));
+          AbstractType& type = Type::ZoneHandle(Type::New(
+              type_class, TypeArguments::Handle(), primary->token_pos()));
           type ^= ClassFinalizer::FinalizeType(
               current_class(), type, ClassFinalizer::kCanonicalize);
           // Type may be malbounded, but not malformed.
@@ -8529,9 +8528,8 @@
           left = LoadClosure(primary);
         } else if (primary->primary().IsClass()) {
           const Class& type_class = Class::Cast(primary->primary());
-          AbstractType& type = Type::ZoneHandle(
-              Type::New(type_class, TypeArguments::Handle(),
-                        primary->token_pos(), Heap::kOld));
+          AbstractType& type = Type::ZoneHandle(Type::New(
+              type_class, TypeArguments::Handle(), primary->token_pos()));
           type = ClassFinalizer::FinalizeType(
               current_class(), type, ClassFinalizer::kCanonicalize);
           // Type may be malbounded, but not malformed.
@@ -8546,7 +8544,7 @@
           type_parameter ^= ClassFinalizer::FinalizeType(
               current_class(),
               TypeParameter::Cast(primary->primary()),
-              ClassFinalizer::kFinalize);
+              ClassFinalizer::kCanonicalize);
           ASSERT(!type_parameter.IsMalformed());
           left = new TypeNode(primary->token_pos(), type_parameter);
         } else if (primary->IsSuper()) {
@@ -9220,7 +9218,7 @@
           CaptureInstantiator();
         }
         type_parameter ^= ClassFinalizer::FinalizeType(
-            current_class(), type_parameter, ClassFinalizer::kFinalize);
+            current_class(), type_parameter, ClassFinalizer::kCanonicalize);
         ASSERT(!type_parameter.IsMalformed());
         return new TypeNode(ident_pos, type_parameter);
       }
@@ -9260,8 +9258,7 @@
     } else if (primary->primary().IsClass()) {
       const Class& type_class = Class::Cast(primary->primary());
       AbstractType& type = Type::ZoneHandle(
-          Type::New(type_class, TypeArguments::Handle(),
-                    primary->token_pos(), Heap::kOld));
+          Type::New(type_class, TypeArguments::Handle(), primary->token_pos()));
       type ^= ClassFinalizer::FinalizeType(
           current_class(), type, ClassFinalizer::kCanonicalize);
       // Type may be malbounded, but not malformed.
diff --git a/runtime/vm/raw_object.cc b/runtime/vm/raw_object.cc
index c425df7..edcc39f 100644
--- a/runtime/vm/raw_object.cc
+++ b/runtime/vm/raw_object.cc
@@ -301,6 +301,13 @@
 }
 
 
+intptr_t RawTypeRef::VisitTypeRefPointers(
+    RawTypeRef* raw_obj, ObjectPointerVisitor* visitor) {
+  visitor->VisitPointers(raw_obj->from(), raw_obj->to());
+  return TypeRef::InstanceSize();
+}
+
+
 intptr_t RawTypeParameter::VisitTypeParameterPointers(
     RawTypeParameter* raw_obj, ObjectPointerVisitor* visitor) {
   visitor->VisitPointers(raw_obj->from(), raw_obj->to());
diff --git a/runtime/vm/raw_object.h b/runtime/vm/raw_object.h
index dce7cbf..b5514df 100644
--- a/runtime/vm/raw_object.h
+++ b/runtime/vm/raw_object.h
@@ -50,6 +50,7 @@
   V(Instance)                                                                  \
     V(AbstractType)                                                            \
       V(Type)                                                                  \
+      V(TypeRef)                                                               \
       V(TypeParameter)                                                         \
       V(BoundedType)                                                           \
       V(MixinAppType)                                                          \
@@ -1178,6 +1179,21 @@
 };
 
 
+class RawTypeRef : public RawAbstractType {
+ private:
+  RAW_HEAP_OBJECT_IMPLEMENTATION(TypeRef);
+
+  RawObject** from() {
+    return reinterpret_cast<RawObject**>(&ptr()->type_);
+  }
+  RawAbstractType* type_;  // The referenced type.
+  RawObject** to() {
+    return reinterpret_cast<RawObject**>(&ptr()->type_);
+  }
+  bool is_being_checked_;  // Transient field, not snapshotted.
+};
+
+
 class RawTypeParameter : public RawAbstractType {
  private:
   RAW_HEAP_OBJECT_IMPLEMENTATION(TypeParameter);
@@ -1208,7 +1224,7 @@
   RawObject** to() {
     return reinterpret_cast<RawObject**>(&ptr()->type_parameter_);
   }
-  bool is_being_checked_;
+  bool is_being_checked_;  // Transient field, not snapshotted.
 };
 
 
diff --git a/runtime/vm/raw_object_snapshot.cc b/runtime/vm/raw_object_snapshot.cc
index e8874af..9c73a1c 100644
--- a/runtime/vm/raw_object_snapshot.cc
+++ b/runtime/vm/raw_object_snapshot.cc
@@ -307,6 +307,54 @@
 }
 
 
+RawTypeRef* TypeRef::ReadFrom(SnapshotReader* reader,
+                              intptr_t object_id,
+                              intptr_t tags,
+                              Snapshot::Kind kind) {
+  ASSERT(reader != NULL);
+
+  // Allocate type ref object.
+  TypeRef& type_ref = TypeRef::ZoneHandle(
+      reader->isolate(), NEW_OBJECT(TypeRef));
+  reader->AddBackRef(object_id, &type_ref, kIsDeserialized);
+
+  // Set the object tags.
+  type_ref.set_tags(tags);
+
+  // Set all the object fields.
+  // TODO(5411462): Need to assert No GC can happen here, even though
+  // allocations may happen.
+  intptr_t num_flds = (type_ref.raw()->to() - type_ref.raw()->from());
+  for (intptr_t i = 0; i <= num_flds; i++) {
+    (*reader->ObjectHandle()) = reader->ReadObjectRef();
+    type_ref.StorePointer((type_ref.raw()->from() + i),
+                          reader->ObjectHandle()->raw());
+  }
+
+  type_ref.set_is_being_checked(false);
+
+  return type_ref.raw();
+}
+
+
+void RawTypeRef::WriteTo(SnapshotWriter* writer,
+                         intptr_t object_id,
+                         Snapshot::Kind kind) {
+  ASSERT(writer != NULL);
+
+  // Write out the serialization header value for this object.
+  writer->WriteInlinedObjectHeader(object_id);
+
+  // Write out the class and tags information.
+  writer->WriteIndexedObject(kTypeRefCid);
+  writer->WriteIntptrValue(writer->GetObjectTags(this));
+
+  // Write out all the object pointer fields.
+  SnapshotWriterVisitor visitor(writer);
+  visitor.VisitPointers(from(), to());
+}
+
+
 RawTypeParameter* TypeParameter::ReadFrom(SnapshotReader* reader,
                                           intptr_t object_id,
                                           intptr_t tags,
diff --git a/runtime/vm/snapshot.cc b/runtime/vm/snapshot.cc
index c05a8fa..04c2196 100644
--- a/runtime/vm/snapshot.cc
+++ b/runtime/vm/snapshot.cc
@@ -536,6 +536,11 @@
 }
 
 
+RawTypeRef* SnapshotReader::NewTypeRef() {
+  ALLOC_NEW_OBJECT(TypeRef, object_store()->type_ref_class());
+}
+
+
 RawTypeParameter* SnapshotReader::NewTypeParameter() {
   ALLOC_NEW_OBJECT(TypeParameter, object_store()->type_parameter_class());
 }
diff --git a/runtime/vm/snapshot.h b/runtime/vm/snapshot.h
index 4288f1d..b15d249 100644
--- a/runtime/vm/snapshot.h
+++ b/runtime/vm/snapshot.h
@@ -61,6 +61,7 @@
 class RawStacktrace;
 class RawTokenStream;
 class RawType;
+class RawTypeRef;
 class RawTypeParameter;
 class RawTypeArguments;
 class RawTwoByteString;
@@ -256,6 +257,7 @@
   RawDouble* NewDouble(double value);
   RawUnresolvedClass* NewUnresolvedClass();
   RawType* NewType();
+  RawTypeRef* NewTypeRef();
   RawTypeParameter* NewTypeParameter();
   RawBoundedType* NewBoundedType();
   RawMixinAppType* NewMixinAppType();
@@ -359,6 +361,7 @@
   friend class Type;
   friend class TypeArguments;
   friend class TypeParameter;
+  friend class TypeRef;
   friend class UnresolvedClass;
   friend class WeakProperty;
   friend class MirrorReference;
diff --git a/runtime/vm/symbols.h b/runtime/vm/symbols.h
index ac7b0d9..4527379 100644
--- a/runtime/vm/symbols.h
+++ b/runtime/vm/symbols.h
@@ -75,6 +75,7 @@
   V(Void, "void")                                                              \
   V(UnresolvedClass, "UnresolvedClass")                                        \
   V(Type, "_Type")                                                             \
+  V(TypeRef, "_TypeRef")                                                       \
   V(TypeParameter, "_TypeParameter")                                           \
   V(BoundedType, "_BoundedType")                                               \
   V(MixinAppType, "_MixinAppType")                                             \
diff --git a/sdk/lib/_internal/compiler/implementation/apiimpl.dart b/sdk/lib/_internal/compiler/implementation/apiimpl.dart
index f16cabe..0afeed4 100644
--- a/sdk/lib/_internal/compiler/implementation/apiimpl.dart
+++ b/sdk/lib/_internal/compiler/implementation/apiimpl.dart
@@ -58,6 +58,7 @@
             verbose: hasOption(options, '--verbose'),
             sourceMapUri: extractSourceMapUri(options),
             terseDiagnostics: hasOption(options, '--terse'),
+            dumpInfo: hasOption(options, '--dump-info'),
             buildId: extractStringOption(
                 options, '--build-id=',
                 "build number could not be determined")) {
diff --git a/sdk/lib/_internal/compiler/implementation/closure.dart b/sdk/lib/_internal/compiler/implementation/closure.dart
index 2b08494..66325f7 100644
--- a/sdk/lib/_internal/compiler/implementation/closure.dart
+++ b/sdk/lib/_internal/compiler/implementation/closure.dart
@@ -700,6 +700,8 @@
         new FunctionElementX.from(Compiler.CALL_OPERATOR_NAME,
                                   element,
                                   globalizedElement);
+    ClosureContainer enclosing = element.enclosingElement;
+    enclosing.nestedClosures.add(callElement);
     globalizedElement.addMember(callElement, compiler);
     // The nested function's 'this' is the same as the one for the outer
     // function. It could be [null] if we are inside a static method.
diff --git a/sdk/lib/_internal/compiler/implementation/compiler.dart b/sdk/lib/_internal/compiler/implementation/compiler.dart
index c49df9d..7846c9a 100644
--- a/sdk/lib/_internal/compiler/implementation/compiler.dart
+++ b/sdk/lib/_internal/compiler/implementation/compiler.dart
@@ -11,11 +11,6 @@
 const bool REPORT_EXCESS_RESOLUTION = false;
 
 /**
- * If true, dump the inferred types after compilation.
- */
-const bool DUMP_INFERRED_TYPES = false;
-
-/**
  * Contains backend-specific data that is used throughout the compilation of
  * one work item.
  */
@@ -85,6 +80,10 @@
           [ConstantSystem constantSystem = DART_CONSTANT_SYSTEM])
       : this.constantSystem = constantSystem;
 
+  // Given a [FunctionElement], return a buffer with the code generated for it
+  // or null if no code was generated.
+  CodeBuffer codeOf(Element element) => null;
+
   void initializeHelperClasses() {}
 
   void enqueueHelpers(ResolutionEnqueuer world, TreeElements elements);
@@ -104,9 +103,6 @@
 
   void onResolutionComplete() {}
 
-  // TODO(ahe,karlklose): rename this?
-  void dumpInferredTypes() {}
-
   ItemCompilationContext createItemCompilationContext() {
     return new ItemCompilationContext();
   }
@@ -362,6 +358,7 @@
   final bool trustTypeAnnotations;
   final bool enableConcreteTypeInference;
   final bool disableTypeInferenceFlag;
+  final bool dumpInfo;
 
   /**
    * The maximum size of a concrete type before it widens to dynamic during
@@ -440,6 +437,9 @@
   ClassElement stackTraceClass;
   ClassElement typedDataClass;
 
+  /// The constant for the [proxy] variable defined in dart:core.
+  Constant proxyConstant;
+
   // Initialized after symbolClass has been resolved.
   FunctionElement symbolConstructor;
 
@@ -543,6 +543,7 @@
   EnqueueTask enqueuer;
   DeferredLoadTask deferredLoadTask;
   MirrorUsageAnalyzerTask mirrorUsageAnalyzerTask;
+  DumpInfoTask dumpInfoTask;
   String buildId;
 
   static const String MAIN = 'main';
@@ -616,6 +617,7 @@
             this.sourceMapUri: null,
             this.buildId: UNDETERMINED_BUILD_ID,
             this.terseDiagnostics: false,
+            this.dumpInfo: false,
             outputProvider,
             List<String> strips: const []})
       : this.analyzeOnly = analyzeOnly || analyzeSignaturesOnly,
@@ -653,7 +655,8 @@
       constantHandler = new ConstantHandler(this, backend.constantSystem),
       deferredLoadTask = new DeferredLoadTask(this),
       mirrorUsageAnalyzerTask = new MirrorUsageAnalyzerTask(this),
-      enqueuer = new EnqueueTask(this)];
+      enqueuer = new EnqueueTask(this),
+      dumpInfoTask = new DumpInfoTask(this)];
 
     tasks.addAll(backend.tasks);
   }
@@ -671,10 +674,6 @@
 
   int getNextFreeClassId() => nextFreeClassId++;
 
-  void ensure(bool condition) {
-    if (!condition) cancel('failed assertion in leg');
-  }
-
   void unimplemented(String methodName,
                      {Node node, Token token, HInstruction instruction,
                       Element element}) {
@@ -916,6 +915,9 @@
     backend.initializeHelperClasses();
 
     dynamicClass.ensureResolved(this);
+
+    proxyConstant = constantHandler.compileVariable(
+        coreLibrary.find('proxy'), isConst: true);
   }
 
   Element _unnamedListConstructor;
@@ -1130,6 +1132,10 @@
 
     backend.assembleProgram();
 
+    if (dumpInfo) {
+      dumpInfoTask.dumpInfo();
+    }
+
     checkQueues();
 
     if (compilationFailed) {
@@ -1189,9 +1195,6 @@
     world.queueIsClosed = true;
     if (compilationFailed) return;
     assert(world.checkNoEnqueuedInvokedInstanceMethods());
-    if (DUMP_INFERRED_TYPES && phase == PHASE_COMPILING) {
-      backend.dumpInferredTypes();
-    }
   }
 
   /**
diff --git a/sdk/lib/_internal/compiler/implementation/dart2js.dart b/sdk/lib/_internal/compiler/implementation/dart2js.dart
index 1ab6de7..f51abf5 100644
--- a/sdk/lib/_internal/compiler/implementation/dart2js.dart
+++ b/sdk/lib/_internal/compiler/implementation/dart2js.dart
@@ -276,6 +276,7 @@
     new OptionHandler('--categories=.*', setCategories),
     new OptionHandler('--disable-type-inference', passThrough),
     new OptionHandler('--terse', passThrough),
+    new OptionHandler('--dump-info', passThrough),
     new OptionHandler('--disallow-unsafe-eval',
                       (_) => hasDisallowUnsafeEval = true),
     new OptionHandler('-D.+=.*', addInEnvironment),
@@ -360,6 +361,9 @@
             " \"Content-Security-Policy: script-src 'self'\"");
       } else if (extension == 'js.map' || extension == 'dart.map') {
         uri = sourceMapOut;
+      } else if (extension == 'info.html') {
+        String outName = out.path.substring(out.path.lastIndexOf('/') + 1);
+        uri = out.resolve('${outName}.$extension');
       } else {
         fail('Error: Unknown extension: $extension');
       }
@@ -566,6 +570,8 @@
     unsupported category, for example, --categories=help.  To enable
     all categories, use --categories=all.
 
+  --dump-info
+    Generates an out.info.html file with information about the generated code.
 '''.trim());
 }
 
diff --git a/sdk/lib/_internal/compiler/implementation/dart2jslib.dart b/sdk/lib/_internal/compiler/implementation/dart2jslib.dart
index ca186dc..1465f3d 100644
--- a/sdk/lib/_internal/compiler/implementation/dart2jslib.dart
+++ b/sdk/lib/_internal/compiler/implementation/dart2jslib.dart
@@ -35,6 +35,7 @@
 import 'js/js.dart' as js;
 import 'deferred_load.dart' show DeferredLoadTask;
 import 'mirrors_used.dart' show MirrorUsageAnalyzerTask;
+import 'dump_info.dart';
 
 export 'resolution/resolution.dart' show TreeElements, TreeElementMapping;
 export 'scanner/scannerlib.dart' show isUserDefinableOperator,
diff --git a/sdk/lib/_internal/compiler/implementation/dump_info.dart b/sdk/lib/_internal/compiler/implementation/dump_info.dart
new file mode 100644
index 0000000..727095f
--- /dev/null
+++ b/sdk/lib/_internal/compiler/implementation/dump_info.dart
@@ -0,0 +1,501 @@
+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+library dump_info;
+
+import 'elements/elements.dart';
+import 'elements/visitor.dart';
+import 'dart:convert' show HtmlEscape;
+import 'dart2jslib.dart' show
+    Compiler,
+    CompilerTask,
+    CodeBuffer;
+import 'dart_types.dart' show DartType;
+import 'types/types.dart' show TypeMask;
+
+// TODO (sigurdm): A search function.
+// TODO (sigurdm): Output size of classes.
+// TODO (sigurdm): Print that we dumped the HTML-file.
+// TODO (sigurdm): Include why a given element was included in the output.
+// TODO (sigurdm): Include how much output grew because of mirror support.
+// TODO (sigurdm): Write each function with parameter names.
+// TODO (sigurdm): Write how much space the boilerplate takes.
+// TODO (sigurdm): Include javascript names of entities in the output.
+
+class CodeSizeCounter {
+  final Map<Element, int> generatedSize = new Map<Element, int>();
+
+  int getGeneratedSizeOf(Element element) {
+    int result = generatedSize[element];
+    return result == null ? 0 : result;
+  }
+
+  void countCode(Element element, int added) {
+    int before = generatedSize.putIfAbsent(element, () => 0);
+    generatedSize[element] = before + added;
+  }
+}
+
+tag(String element) {
+  return (String content, {String cls}) {
+    String classString = cls == null ? '' : ' class="$cls"';
+    return '<$element$classString>$content</$element>';
+  };
+}
+
+var div = tag('div');
+var span = tag('span');
+var code = tag('code');
+var h2 = tag('h2');
+
+var esc = const HtmlEscape().convert;
+
+String sizeDescription(int size, ProgramInfo programInfo) {
+  return size == null
+      ? ''
+      : span('${size} bytes '
+        '(${size * 100 ~/ programInfo.size}%)', cls: "size");
+}
+
+/// An [InfoNode] holds information about a part the program.
+abstract class InfoNode {
+  String get name;
+
+  int get size;
+
+  void emitHtml(ProgramInfo programInfo, StringSink buffer);
+}
+
+/// An [ElementNode] holds information about an [Element]
+class ElementInfoNode implements InfoNode {
+  /// The name of the represented [Element].
+  final String name;
+
+  /// The kind of the [Element] represented.  This is presented to the
+  /// user, so it might be more specific than [element.kind].
+  final String kind;
+
+  /// The static type of the represented [Element].
+  /// [null] if this kind of element has no type.
+  final String type;
+
+  /// Any extra information to display about the represented [Element].
+  final String extra;
+
+  /// A textual description of the modifiers (such as "static", "abstract") of
+  /// the represented [Element].
+  final String modifiers;
+
+  /// Describes how many bytes the code for the represented [Element] takes up
+  /// in the output.
+  final int size;
+
+  /// Subnodes containing more detailed information about the represented
+  /// [Element], and its members.
+  List<InfoNode> contents;
+
+  ElementInfoNode({this.name: "",
+      this.kind: "",
+      this.type,
+      this.modifiers: "",
+      this.size,
+      this.contents,
+      this.extra: ""});
+
+  void emitHtml(ProgramInfo programInfo, StringSink buffer) {
+    String kindString = span(esc(kind), cls: 'kind');
+    String modifiersString = span(esc(modifiers), cls: "modifiers");
+
+    String nameString = span(esc(name), cls: 'name');
+    String typeString = type == null
+        ? ''
+        : span('/* ' + esc(type) + ' */', cls: 'type');
+    String extraString = span(esc(extra), cls: 'type');
+    String describe = [
+        kindString,
+        typeString,
+        modifiersString,
+        nameString,
+        sizeDescription(size, programInfo),
+        extraString].join(' ');
+
+    if (contents != null) {
+      buffer.write(div("+$describe", cls: "container"));
+      buffer.write('<div class="contained">');
+      if (contents.isEmpty) {
+        buffer.writeln("No members");
+      }
+      for (InfoNode subElementDescription in contents) {
+        subElementDescription.emitHtml(programInfo, buffer);
+      }
+      buffer.write("</div>");
+    } else {
+      buffer.writeln(describe);
+    }
+  }
+}
+
+/// A [CodeInfoNode] holds information about a piece of code.
+class CodeInfoNode implements InfoNode {
+  /// A short description of the code.
+  final String description;
+
+  final String generatedCode;
+
+  get size => generatedCode.length;
+
+  get name => "";
+
+  CodeInfoNode({this.description: "", this.generatedCode});
+
+  void emitHtml(ProgramInfo programInfo, StringBuffer buffer) {
+    buffer.write(div(description + ' ' +
+                     sizeDescription(generatedCode.length, programInfo),
+                     cls: 'kind') +
+        code(esc(generatedCode)));
+  }
+}
+
+/// Instances represent information inferred about the program such as
+/// inferred type information or inferred side effects.
+class InferredInfoNode implements InfoNode {
+  /// Text describing the represented information.
+  final String description;
+
+  /// The name of the entity this information is inferred about (for example the
+  /// name of a parameter).
+  final String name;
+
+  /// The inferred type/side effect.
+  final String type;
+
+  get size => 0;
+
+  InferredInfoNode({this.name: "", this.description, this.type});
+
+  void emitHtml(ProgramInfo programInfo, StringSink buffer) {
+    buffer.write(div('${span("Inferred " + description, cls: "kind")} '
+                     '${span(esc(name),
+                     cls: "name")} '
+        '${span(esc(type), cls: 'type')} '));
+  }
+}
+
+/// Instances represent information about a program.
+class ProgramInfo {
+  /// A list of all the libraries in the program to show information about.
+  final List<InfoNode> libraries;
+
+  /// The size of the whole program in bytes.
+  final int size;
+
+  /// The time the compilation took place.
+  final DateTime compilationMoment;
+
+  /// The time the compilation took to complete.
+  final Duration compilationDuration;
+
+  /// The version of dart2js used to compile the program.
+  final String dart2jsVersion;
+
+  ProgramInfo({this.libraries,
+               this.size,
+               this.compilationMoment,
+               this.compilationDuration,
+               this.dart2jsVersion});
+}
+
+class InfoDumpVisitor extends ElementVisitor<InfoNode> {
+  final Compiler compiler;
+
+  /// Contains the elements visited on the path from the library to here.
+  List<Element> stack = new List<Element>();
+
+  Element get currentElement => stack.last;
+
+  InfoDumpVisitor(Compiler this.compiler);
+
+  InfoNode visitElement(Element element) {
+    compiler.internalError("This element of kind ${element.kind} "
+        "does not support --dump-info",
+        token: element.position());
+  }
+
+  InfoNode visitLibraryElement(LibraryElement element) {
+    List<InfoNode> contents = new List<InfoNode>();
+    int size = compiler.dumpInfoTask.codeSizeCounter
+        .getGeneratedSizeOf(element);
+    if (size == 0) return null;
+    stack.add(element);
+    element.forEachLocalMember((Element member) {
+      InfoNode info = member.accept(this);
+      if (info != null) {
+        contents.add(info);
+      }
+    });
+    stack.removeLast();
+    String nameString = element.getLibraryName() == ""
+        ? "<unnamed>"
+        : element.getLibraryName();
+    contents.sort((InfoNode e1, InfoNode e2) {
+      return e1.name.compareTo(e2.name);
+    });
+    return new ElementInfoNode(
+        extra: "${element.canonicalUri}",
+        kind: "library",
+        name: nameString,
+        size: size,
+        modifiers: "",
+        contents: contents);
+  }
+
+  InfoNode visitTypedefElement(TypedefElement element) {
+    return element.alias == null
+        ? null
+        : new ElementInfoNode(
+            type: element.alias.toString(),
+            kind: "typedef",
+            name: element.name);
+  }
+
+  InfoNode visitFieldElement(FieldElement element) {
+    CodeBuffer emittedCode = compiler.backend.codeOf(element);
+    int size = 0;
+    DartType type = element.computeType(compiler);
+    TypeMask inferredType = compiler.typesTask
+        .getGuaranteedTypeOfElement(element);
+    // If a field has an empty inferred type it is never used.
+    if ((inferredType == null || inferredType.isEmpty) && emittedCode == null) {
+      return null;
+    }
+    List<InfoNode> contents = new List<InfoNode>();
+    if (emittedCode != null) {
+      contents.add(new CodeInfoNode(
+          description: "Generated initializer",
+          generatedCode: emittedCode.getText()));
+      size = emittedCode.length;
+    }
+    if (inferredType != null) {
+      contents.add(new InferredInfoNode(
+          description: "type",
+          type: inferredType.toString()));
+      stack.add(element);
+    }
+    for (Element closure in element.nestedClosures) {
+      InfoNode info = closure.accept(this);
+      if (info != null) {
+        contents.add(info);
+        size += info.size;
+      }
+    }
+    stack.removeLast();
+
+    return new ElementInfoNode(
+        kind: "field",
+        type: "$type",
+        name: element.name,
+        size: size,
+        modifiers: "${element.modifiers}",
+        contents: contents);
+  }
+
+  InfoNode visitClassElement(ClassElement element) {
+    // If the element is not resolved it is not used in the program, and we omit
+    // it from the output.
+    if (!element.isResolved) return null;
+    String modifiersString = "${element.modifiers}";
+    String supersString = element.allSupertypes == null ? "" :
+        "implements ${element.allSupertypes}";
+    List contents = [];
+    stack.add(element);
+    element.forEachLocalMember((Element member) {
+      InfoNode info = member.accept(this);
+      if (info != null) {
+        contents.add(info);
+      }
+    });
+    stack.removeLast();
+    if (contents.isEmpty) {
+      // TODO (sigurdm): Only return here if the class is never used in type
+      // checks.
+      return null;
+    }
+    contents.sort((InfoNode n1, InfoNode n2) {
+      return n1.name.compareTo(n2.name);
+    });
+    return new ElementInfoNode(
+        kind: "class",
+        name: element.name,
+        extra: supersString,
+        modifiers: modifiersString,
+        contents: contents);
+  }
+
+  InfoNode visitFunctionElement(FunctionElement element) {
+    CodeBuffer emittedCode = compiler.backend.codeOf(element);
+    int size = 0;
+    String nameString = element.name;
+    String modifiersString = "${element.modifiers}";
+    String kindString = "function";
+    if (currentElement.isClass()) {
+      kindString = "method";
+    } else if (currentElement.isField() ||
+               currentElement.isFunction() ||
+               currentElement.isConstructor()) {
+      kindString = "closure";
+      nameString = "<unnamed>";
+    }
+    if (element.isConstructor()) {
+      nameString = element.name == ""
+          ? "${element.enclosingElement.name}"
+          : "${element.enclosingElement.name}.${element.name}";
+      kindString = "constructor";
+    }
+    List contents = [];
+    if (emittedCode != null) {
+      FunctionSignature signature = element.computeSignature(compiler);
+      signature.forEachParameter((parameter) {
+        contents.add(new InferredInfoNode(
+            description: "parameter",
+            name: parameter.name,
+            type: compiler.typesTask
+              .getGuaranteedTypeOfElement(parameter).toString()));
+      });
+      contents.add(new InferredInfoNode(
+          description: "return type",
+          type: compiler.typesTask
+            .getGuaranteedReturnTypeOfElement(element).toString()));
+      contents.add(new InferredInfoNode(
+        description: "side effects",
+        type: compiler.world
+            .getSideEffectsOfElement(element).toString()));
+      contents.add(new CodeInfoNode(
+          description: "Generated code",
+          generatedCode: emittedCode.getText()));
+      size += emittedCode.length;
+    }
+    stack.add(element);
+    for (Element closure in element.nestedClosures) {
+      InfoNode info = closure.accept(this);
+      if (info != null) {
+        contents.add(info);
+        size += info.size;
+      }
+    }
+    stack.removeLast();
+    if (size == 0) {
+      return null;
+    }
+    return new ElementInfoNode(
+        type: element.type.toString(),
+        kind: kindString,
+        name: nameString,
+        size: size,
+        modifiers: modifiersString,
+        contents: contents);
+  }
+}
+
+class DumpInfoTask extends CompilerTask {
+  DumpInfoTask(Compiler compiler)
+      : infoDumpVisitor = new InfoDumpVisitor(compiler),
+        super(compiler);
+
+  String name = "Dump Info";
+
+  final CodeSizeCounter codeSizeCounter = new CodeSizeCounter();
+
+  final InfoDumpVisitor infoDumpVisitor;
+
+  void dumpInfo() {
+    measure(() {
+      ProgramInfo info = collectDumpInfo();
+      StringBuffer buffer = new StringBuffer();
+      dumpInfoHtml(info, buffer);
+      compiler.outputProvider('', 'info.html')
+        ..add(buffer.toString())
+        ..close();
+    });
+  }
+
+  ProgramInfo collectDumpInfo() {
+    List<LibraryElement> sortedLibraries = compiler.libraries.values.toList();
+    sortedLibraries.sort((LibraryElement l1, LibraryElement l2) {
+      if (l1.isPlatformLibrary && !l2.isPlatformLibrary) {
+        return 1;
+      } else if (!l1.isPlatformLibrary && l2.isPlatformLibrary) {
+        return -1;
+      }
+      return l1.getLibraryName().compareTo(l2.getLibraryName());
+    });
+
+    List<InfoNode> libraryInfos = new List<InfoNode>();
+    libraryInfos.addAll(sortedLibraries
+        .map((library) => infoDumpVisitor.visit(library))
+        .where((info) => info != null));
+
+    return new ProgramInfo(
+        compilationDuration: compiler.totalCompileTime.elapsed,
+        // TODO (sigurdm): Also count the size of deferred code
+        size: compiler.assembledCode.length,
+        libraries: libraryInfos,
+        compilationMoment: new DateTime.now(),
+        dart2jsVersion: compiler.hasBuildId ? compiler.buildId : null);
+  }
+
+  void dumpInfoHtml(ProgramInfo info, StringSink buffer) {
+    int totalSize = info.size;
+
+    buffer.writeln("""
+<html>
+  <head>
+    <title>Dart2JS compilation information</title>
+       <style>
+         code {margin-left: 20px; display: block;}
+         div.contained {margin-left: 20px;}
+         div {margin-top:0px;
+         margin-bottom: 0px;
+         white-space: pre; /*border: 1px solid;*/}
+         span.kind {}
+         span.modifiers {font-weight:bold;}
+         span.name {font-weight:bold; font-family: monospace;}
+         span.type {font-family: monospace; color:blue;}
+       </style>
+     </head>
+     <body>
+       <h1>Dart2js compilation information</h1>""");
+    buffer.writeln(h2('Compilation took place: '
+                      '${info.compilationMoment}'));
+    buffer.writeln(h2('Compilation took: '
+                      '${info.compilationDuration.inSeconds} seconds'));
+    buffer.writeln(h2('Output size: ${info.size} bytes'));
+    if (info.dart2jsVersion != null) {
+      buffer.writeln(h2('Dart2js version: ${info.dart2jsVersion}'));
+    }
+
+    info.libraries.forEach((InfoNode node) {
+      node.emitHtml(info, buffer);
+    });
+
+
+    // TODO (sigurdm): This script should be written in dart
+    buffer.writeln(r"""
+    <script type="text/javascript">
+      function toggler(element) {
+        return function(e) {
+          element.hidden = !element.hidden;
+        };
+      }
+      var containers = document.getElementsByClassName('container');
+      for (var i = 0; i < containers.length; i++) {
+        var container = containers[i];
+        container.addEventListener('click',
+          toggler(container.nextElementSibling), false);
+       container.nextElementSibling.hidden = true;
+      };
+    </script>
+  </body>
+</html>""");
+  }
+}
diff --git a/sdk/lib/_internal/compiler/implementation/elements/elements.dart b/sdk/lib/_internal/compiler/implementation/elements/elements.dart
index f06f740..693e4af 100644
--- a/sdk/lib/_internal/compiler/implementation/elements/elements.dart
+++ b/sdk/lib/_internal/compiler/implementation/elements/elements.dart
@@ -627,6 +627,10 @@
   void forEachLocalMember(f(Element element));
 }
 
+abstract class ClosureContainer implements Element {
+  List<FunctionElement> get nestedClosures;
+}
+
 abstract class CompilationUnitElement extends Element {
   Script get script;
   PartOf get partTag;
@@ -739,6 +743,9 @@
   Expression get cachedNode;
 }
 
+abstract class FieldElement extends VariableElement
+    implements ClosureContainer {}
+
 abstract class FieldParameterElement extends VariableElement {
   VariableElement get fieldElement;
 }
@@ -785,7 +792,7 @@
   bool isCompatibleWith(FunctionSignature constructorSignature);
 }
 
-abstract class FunctionElement extends Element {
+abstract class FunctionElement extends Element implements ClosureContainer {
   FunctionExpression get cachedNode;
   DartType get type;
   FunctionSignature get functionSignature;
@@ -887,6 +894,9 @@
   bool implementsInterface(ClassElement intrface);
   bool hasFieldShadowedBy(Element fieldMember);
 
+  /// Returns `true` if this class has a @proxy annotation.
+  bool get isProxy;
+
   ClassElement ensureResolved(Compiler compiler);
 
   void addMember(Element element, DiagnosticListener listener);
@@ -918,7 +928,8 @@
                      {bool includeBackendMembers: false,
                       bool includeSuperAndInjectedMembers: false});
 
-  void forEachInstanceField(void f(ClassElement enclosingClass, Element field),
+  void forEachInstanceField(void f(ClassElement enclosingClass,
+                                   FieldElement field),
                             {bool includeSuperAndInjectedMembers: false});
 
   /// Similar to [forEachInstanceField] but visits static fields.
diff --git a/sdk/lib/_internal/compiler/implementation/elements/modelx.dart b/sdk/lib/_internal/compiler/implementation/elements/modelx.dart
index 215b989..f72260c 100644
--- a/sdk/lib/_internal/compiler/implementation/elements/modelx.dart
+++ b/sdk/lib/_internal/compiler/implementation/elements/modelx.dart
@@ -333,6 +333,7 @@
   get patch => null;
   get origin => this;
   get defaultImplementation => unsupported();
+  get nestedClosures => unsupported();
 
   bool get isRedirectingFactory => unsupported();
 
@@ -1164,6 +1165,17 @@
   accept(ElementVisitor visitor) => visitor.visitVariableElement(this);
 }
 
+class FieldElementX extends VariableElementX implements FieldElement {
+  List<FunctionElement> nestedClosures = new List<FunctionElement>();
+
+  FieldElementX(String name,
+                VariableListElement variables,
+                Expression cachedNode)
+    : super(name, variables, ElementKind.FIELD, cachedNode);
+
+  accept(ElementVisitor visitor) => visitor.visitFieldElement(this);
+}
+
 /**
  * Parameters in constructors that directly initialize fields. For example:
  * [:A(this.field):].
@@ -1420,6 +1432,8 @@
   DartType type;
   final Modifiers modifiers;
 
+  List<FunctionElement> nestedClosures = new List<FunctionElement>();
+
   FunctionSignature functionSignature;
 
   /**
@@ -1744,6 +1758,7 @@
   int supertypeLoadState;
   int resolutionState;
   bool get isResolved => resolutionState == STATE_DONE;
+  bool isProxy = false;
 
   // backendMembers are members that have been added by the backend to simplify
   // compilation. They don't have any user-side counter-part.
@@ -2067,7 +2082,8 @@
    * When called on the implementation element both the fields declared in the
    * origin and in the patch are included.
    */
-  void forEachInstanceField(void f(ClassElement enclosingClass, Element field),
+  void forEachInstanceField(void f(ClassElement enclosingClass,
+                                   FieldElement field),
                             {bool includeSuperAndInjectedMembers: false}) {
     // Filters so that [f] is only invoked with instance fields.
     void fieldFilter(ClassElement enclosingClass, Element member) {
diff --git a/sdk/lib/_internal/compiler/implementation/elements/visitor.dart b/sdk/lib/_internal/compiler/implementation/elements/visitor.dart
index f8f1377..38d88b3 100644
--- a/sdk/lib/_internal/compiler/implementation/elements/visitor.dart
+++ b/sdk/lib/_internal/compiler/implementation/elements/visitor.dart
@@ -27,6 +27,7 @@
   R visitPrefixElement(PrefixElement e) => visitElement(e);
   R visitTypedefElement(TypedefElement e) => visitElement(e);
   R visitVariableElement(VariableElement e) => visitElement(e);
+  R visitFieldElement(FieldElement e) => visitVariableElement(e);
   R visitFieldParameterElement(FieldParameterElement e) => visitElement(e);
   R visitVariableListElement(VariableListElement e) => visitElement(e);
   R visitAbstractFieldElement(AbstractFieldElement e) => visitElement(e);
@@ -35,7 +36,7 @@
   R visitClassElement(ClassElement e) => visitScopeContainerElement(e);
   R visitTypeDeclarationElement(TypeDeclarationElement e) => visitElement(e);
   R visitMixinApplicationElement(MixinApplicationElement e) {
-    visitClassElement(e);
+    return visitClassElement(e);
   }
   R visitVoidElement(VoidElement e) => visitElement(e);
   R visitLabelElement(LabelElement e) => visitElement(e);
diff --git a/sdk/lib/_internal/compiler/implementation/inferrer/container_tracer.dart b/sdk/lib/_internal/compiler/implementation/inferrer/container_tracer.dart
index cb204ae..bc1dc7f 100644
--- a/sdk/lib/_internal/compiler/implementation/inferrer/container_tracer.dart
+++ b/sdk/lib/_internal/compiler/implementation/inferrer/container_tracer.dart
@@ -125,21 +125,67 @@
     'checkGrowable',
   ]);
 
+// A set of selectors we know do not escape the elements inside the
+// list.
+Set<String> doesNotEscapeElementSet = new Set<String>.from(
+  const <String>[
+    // From Object.
+    '==',
+    'hashCode',
+    'toString',
+    'noSuchMethod',
+    'runtimeType',
+
+    // From Iterable.
+    'isEmpty',
+    'isNotEmpty',
+    'length',
+    'any',
+    'contains',
+    'every',
+    'join',
+
+    // From List.
+    'add',
+    'addAll',
+    'clear',
+    'fillRange',
+    'indexOf',
+    'insert',
+    'insertAll',
+    'lastIndexOf',
+    'remove',
+    'removeRange',
+    'replaceRange',
+    'setAll',
+    'setRange',
+    'shuffle',
+    '[]=',
+
+    // From JSArray.
+    'checkMutable',
+    'checkGrowable',
+  ]);
+
 bool _VERBOSE = false;
 
 class ContainerTracerVisitor implements TypeInformationVisitor {
-  final ContainerTypeInformation container;
+  final ListTypeInformation container;
   final TypeGraphInferrerEngine inferrer;
   final Compiler compiler;
 
-  // The set of [TypeInformation] where the traced container could
-  // flow in, and operations done on them.
-  final Setlet<TypeInformation> flowsInto = new Setlet<TypeInformation>();
 
   // Work list that gets populated with [TypeInformation] that could
   // contain the container.
   final List<TypeInformation> workList = <TypeInformation>[];
 
+  // Work list of containers to analyze after analyzing the users of a
+  // [TypeInformation] that may be [container]. We know [container]
+  // has been stored in these containers and we must check how
+  // [container] escapes from these containers.
+  final List<ListTypeInformation> containersToAnalyze =
+      <ListTypeInformation>[];
+
   // The current [TypeInformation] in the analysis.
   TypeInformation currentUser;
 
@@ -156,8 +202,8 @@
       : this.inferrer = inferrer, this.compiler = inferrer.compiler;
 
   void addNewEscapeInformation(TypeInformation info) {
-    if (flowsInto.contains(info)) return;
-    flowsInto.add(info);
+    if (container.flowsInto.contains(info)) return;
+    container.flowsInto.add(info);
     workList.add(info);
   }
 
@@ -171,6 +217,9 @@
         analyzedElements.add(info.owner);
         info.accept(this);
       });
+      while (!containersToAnalyze.isEmpty) {
+        analyzeStoredIntoContainer(containersToAnalyze.removeLast());
+      }
       if (!continueAnalyzing) break;
       if (analyzedElements.length > MAX_ANALYSIS_COUNT) {
         bailout('Too many users');
@@ -210,10 +259,12 @@
     addNewEscapeInformation(info);
   }
 
-  visitContainerTypeInformation(ContainerTypeInformation info) {
-    if (container != info) {
-      bailout('Stored in a container');
-    }
+  visitListTypeInformation(ListTypeInformation info) {
+    containersToAnalyze.add(info);
+  }
+
+  visitMapTypeInformation(MapTypeInformation info) {
+    bailout('Stored in a map');
   }
 
   visitConcreteTypeInformation(ConcreteTypeInformation info) {}
@@ -232,6 +283,35 @@
     }
   }
 
+  void analyzeStoredIntoContainer(ListTypeInformation container) {
+    inferrer.analyzeContainer(container);
+    if (container.bailedOut) {
+      bailout('Stored in a container that bailed out');
+    } else {
+      container.flowsInto.forEach((flow) {
+        flow.users.forEach((user) {
+          if (user is !DynamicCallSiteTypeInformation) return;
+          if (user.receiver != flow) return;
+          if (returnsElementTypeSet.contains(user.selector)) {
+            addNewEscapeInformation(user);
+          } else if (!doesNotEscapeElementSet.contains(user.selector.name)) {
+            bailout('Escape from a container');
+          }
+        });
+      });
+    }
+  }
+
+  bool isAddedToContainer(DynamicCallSiteTypeInformation info) {
+    var receiverType = info.receiver.type;
+    if (!receiverType.isContainer) return false;
+    String selectorName = info.selector.name;
+    List<TypeInformation> arguments = info.arguments.positional;
+    return (selectorName == '[]=' && currentUser == arguments[1])
+        || (selectorName == 'insert' && currentUser == arguments[0])
+        || (selectorName == 'add' && currentUser == arguments[0]);
+  }
+
   visitDynamicCallSiteTypeInformation(DynamicCallSiteTypeInformation info) {
     Selector selector = info.selector;
     String selectorName = selector.name;
@@ -269,6 +349,18 @@
                && !info.targets.every((element) => element.isFunction())) {
       bailout('Passed to a closure');
       return;
+    } else if (isAddedToContainer(info)) {
+      ContainerTypeMask mask = info.receiver.type;
+      if (mask.allocationNode != null) {
+        ListTypeInformation container =
+            inferrer.types.allocatedLists[mask.allocationNode];
+        containersToAnalyze.add(container);
+      } else {
+        // The [ContainerTypeMask] is a union of two containers, and
+        // we lose track of where these containers have been allocated
+        // at this point.
+        bailout('Stored in too many containers');
+      }
     }
 
     if (info.targets
@@ -276,7 +368,6 @@
             .any((other) => other == currentUser)) {
       addNewEscapeInformation(info);
     }
-
   }
 
   bool isClosure(Element element) {
@@ -285,6 +376,17 @@
     return outermost.declaration != element.declaration;
   }
 
+  bool isParameterOfListAddingMethod(Element element) {
+    if (!element.isParameter()) return false;
+    if (element.getEnclosingClass() != compiler.backend.listImplementation) {
+      return false;
+    }
+    Element method = element.enclosingElement;
+    return (method.name == '[]=')
+        || (method.name == 'add')
+        || (method.name == 'insert');
+  }
+
   visitElementTypeInformation(ElementTypeInformation info) {
     if (isClosure(info.element)) {
       bailout('Returned from a closure');
@@ -292,6 +394,11 @@
     if (compiler.backend.isNeededForReflection(info.element)) {
       bailout('Escape in reflection');
     }
+    if (isParameterOfListAddingMethod(info.element)) {
+      // These elements are being handled in
+      // [visitDynamicCallSiteTypeInformation].
+      return;
+    }
     addNewEscapeInformation(info);
   }
 }
diff --git a/sdk/lib/_internal/compiler/implementation/inferrer/inferrer_visitor.dart b/sdk/lib/_internal/compiler/implementation/inferrer/inferrer_visitor.dart
index 6eb5bb5..7db8c95 100644
--- a/sdk/lib/_internal/compiler/implementation/inferrer/inferrer_visitor.dart
+++ b/sdk/lib/_internal/compiler/implementation/inferrer/inferrer_visitor.dart
@@ -42,10 +42,12 @@
   bool isNull(T type);
   Selector newTypedSelector(T receiver, Selector selector);
 
-  T allocateContainer(T type,
-                      Node node,
-                      Element enclosing,
-                      [T elementType, int length]);
+  T allocateList(T type,
+                 Node node,
+                 Element enclosing,
+                 [T elementType, int length]);
+
+  T allocateMap(T keyType, T valueType, T type);
 
   /**
    * Returns the least upper bound between [firstType] and
diff --git a/sdk/lib/_internal/compiler/implementation/inferrer/ir_type_inferrer.dart b/sdk/lib/_internal/compiler/implementation/inferrer/ir_type_inferrer.dart
index 5591f68..bae7c29 100644
--- a/sdk/lib/_internal/compiler/implementation/inferrer/ir_type_inferrer.dart
+++ b/sdk/lib/_internal/compiler/implementation/inferrer/ir_type_inferrer.dart
@@ -5,56 +5,64 @@
 library dart2js.ir_type_inferrer;
 
 import '../ir/ir_nodes.dart';
-import 'inferrer_visitor.dart' show TypeSystem;
+import 'inferrer_visitor.dart' show TypeSystem, ArgumentsTypes;
 import 'simple_types_inferrer.dart' show InferrerEngine;
 import '../elements/elements.dart' show
-    Element, FunctionElement, FunctionSignature;
+    Elements, Element, FunctionElement, FunctionSignature;
 import '../dart2jslib.dart' show Compiler, Constant, ConstantSystem;
 import 'type_graph_inferrer.dart' show TypeInformation;
+import '../universe/universe.dart' show Selector, SideEffects;
+
 
 class IrTypeInferrerVisitor extends IrNodesVisitor {
   final Compiler compiler;
   final Element analyzedElement;
-  final TypeSystem<TypeInformation> types;
+  final Element outermostElement;
   final InferrerEngine<TypeInformation, TypeSystem<TypeInformation>> inferrer;
+  final TypeSystem<TypeInformation> types;
 
   IrTypeInferrerVisitor(this.compiler,
-                        this.analyzedElement,
+                        Element analyzedElement,
                         InferrerEngine<TypeInformation,
                         TypeSystem<TypeInformation>> inferrer)
-    : inferrer = inferrer,
+    : this.analyzedElement = analyzedElement,
+      outermostElement = _outermostElement(analyzedElement),
+      this.inferrer = inferrer,
       types = inferrer.types;
 
+  final SideEffects sideEffects = new SideEffects.empty();
+  bool inLoop = false;
+
+  static Element _outermostElement(Element analyzedElememnt) {
+    Element outermostElement =
+        analyzedElememnt.getOutermostEnclosingMemberOrTopLevel().implementation;
+    assert(outermostElement != null);
+    return outermostElement;
+  }
+
   final Map<IrNode, TypeInformation> analyzed = <IrNode, TypeInformation>{};
 
   TypeInformation returnType;
 
   TypeInformation run() {
-    if (analyzedElement.isField()) {
-      // TODO(lry): handle fields.
-      throw "Type infer from IR for field $analyzedElement";
-    }
+    // TODO(lry): handle fields.
+    assert(!analyzedElement.isField());
+
     FunctionElement function = analyzedElement;
     FunctionSignature signature = function.computeSignature(compiler);
     IrFunction node = compiler.irBuilder.getIr(function);
+
     // TODO(lry): handle parameters.
-
-    if (function.isNative()) {
-      // TODO(lry): handle native.
-      throw "Type infer from IR for native $analyzedElement";
-    }
-
-    if (analyzedElement.isGenerativeConstructor()) {
-      // TODO(lry): handle constructors.
-      throw "Type infer from IR for constructor $analyzedElement";
-    }
-
-    if (analyzedElement.isSynthesized) {
-      // TODO(lry): handle synthethics.
-      throw "Type infer from IR for synthetic $analyzedElement";
-    }
+    assert(function.computeSignature(compiler).parameterCount == 0);
+    // TODO(lry): handle native.
+    assert(!function.isNative());
+    // TODO(lry): handle constructors.
+    assert(!analyzedElement.isGenerativeConstructor());
+    // TODO(lry): handle synthethics.
+    assert(!analyzedElement.isSynthesized);
 
     visitAll(node.statements);
+    compiler.world.registerSideEffects(analyzedElement, sideEffects);
     return returnType;
   }
 
@@ -62,6 +70,25 @@
     return inferrer.types.getConcreteTypeFor(constant.computeMask(compiler));
   }
 
+  TypeInformation handleStaticSend(IrNode node,
+                                   Selector selector,
+                                   Element element,
+                                   ArgumentsTypes arguments) {
+    return inferrer.registerCalledElement(
+        node, selector, outermostElement, element, arguments,
+        sideEffects, inLoop);
+  }
+
+  ArgumentsTypes<TypeInformation> analyzeArguments(
+      Selector selector, List<IrNode> arguments) {
+    // TODO(lry): support named arguments, necessary information should be
+    // in [selector].
+    assert(selector.namedArgumentCount == 0);
+    List<TypeInformation> positional =
+        arguments.map((e) => analyzed[e]).toList(growable: false);
+    return new ArgumentsTypes<TypeInformation>(positional, null);
+  }
+
   void visitIrConstant(IrConstant node) {
     analyzed[node] = typeOfConstant(node.value);
   }
@@ -71,7 +98,22 @@
     returnType = inferrer.addReturnTypeFor(analyzedElement, returnType, type);
   }
 
-  void visitNode(IrNode node) {
+  void visitIrInvokeStatic(IrInvokeStatic node) {
+    FunctionElement element = node.target;
+    Selector selector = node.selector;
+    // TODO(lry): handle foreign functions.
+    assert(!element.isForeign(compiler));
+    // In erroneous code the number of arguments in the selector might not
+    // match the function element.
+    if (!selector.applies(element, compiler)) {
+      analyzed[node] = types.dynamicType;
+    } else {
+      ArgumentsTypes arguments = analyzeArguments(selector, node.arguments);
+      analyzed[node] = handleStaticSend(node, selector, element, arguments);
+    }
+  }
+
+  void visitIrNode(IrNode node) {
     compiler.internalError('Unexpected IrNode $node');
   }
 }
diff --git a/sdk/lib/_internal/compiler/implementation/inferrer/simple_types_inferrer.dart b/sdk/lib/_internal/compiler/implementation/inferrer/simple_types_inferrer.dart
index 85f9ed5..29c46fa 100644
--- a/sdk/lib/_internal/compiler/implementation/inferrer/simple_types_inferrer.dart
+++ b/sdk/lib/_internal/compiler/implementation/inferrer/simple_types_inferrer.dart
@@ -10,6 +10,7 @@
 import '../elements/elements.dart';
 import '../native_handler.dart' as native;
 import '../tree/tree.dart';
+import '../ir/ir_nodes.dart' show IrNode;
 import '../util/util.dart' show Link, Spannable, Setlet;
 import '../types/types.dart'
     show TypesInferrer, FlatTypeMask, TypeMask, ContainerTypeMask,
@@ -99,13 +100,17 @@
       => new TypeMask.nonNullExact(type.declaration);
   TypeMask nonNullEmpty() => new TypeMask.nonNullEmpty();
 
-  TypeMask allocateContainer(TypeMask type,
-                             Node node,
-                             Element enclosing,
-                             [TypeMask elementType, int length]) {
+  TypeMask allocateList(TypeMask type,
+                        Node node,
+                        Element enclosing,
+                        [TypeMask elementType, int length]) {
     return new ContainerTypeMask(type, node, enclosing, elementType, length);
   }
 
+  TypeMask allocateMap(TypeMask keys, TypeMask values, TypeMask type) {
+    return type;
+  }
+
   Selector newTypedSelector(TypeMask receiver, Selector selector) {
     return new TypedSelector(receiver, selector);
   }
@@ -341,9 +346,15 @@
     return returnType;
   }
 
-  void updateSelectorInTree(Element owner, Node node, Selector selector) {
+  void updateSelectorInTree(
+      Element owner, Spannable node, Selector selector) {
+    if (node is IrNode) {
+      // TODO(lry): update selector for IrInvokeDynamic.
+      throw "updateSelector for IR node $node";
+    }
+    Node astNode = node;
     var elements = compiler.enqueuer.resolution.getCachedElements(owner);
-    if (node.asSendSet() != null) {
+    if (astNode.asSendSet() != null) {
       if (selector.isSetter() || selector.isIndexSet()) {
         elements.setSelector(node, selector);
       } else if (selector.isGetter() || selector.isIndex()) {
@@ -352,10 +363,10 @@
         assert(selector.isOperator());
         elements.setOperatorSelectorInComplexSendSet(node, selector);
       }
-    } else if (node.asSend() != null) {
+    } else if (astNode.asSend() != null) {
       elements.setSelector(node, selector);
     } else {
-      assert(node.asForIn() != null);
+      assert(astNode.asForIn() != null);
       if (selector.asUntyped == compiler.iteratorSelector) {
         elements.setIteratorSelector(node, selector);
       } else if (selector.asUntyped == compiler.currentSelector) {
@@ -595,7 +606,7 @@
       T containerType = node.isConst()
           ? types.constListType
           : types.growableListType;
-      return types.allocateContainer(
+      return types.allocateList(
           containerType,
           node,
           outermostElement,
@@ -604,6 +615,30 @@
     });
   }
 
+  T visitLiteralMap(LiteralMap node) {
+    NodeList entries = node.entries;
+    T keyType;
+    T valueType;
+    if (entries.isEmpty) {
+      keyType = types.nonNullEmpty();
+      valueType = types.nonNullEmpty();
+    } else {
+      for (LiteralMapEntry entry in entries) {
+        T key = visit(entry.key);
+        keyType = keyType == null
+            ? types.allocatePhi(null, null, key)
+            : types.addPhiInput(null, keyType, key);
+
+        T value = visit(entry.value);
+        valueType = valueType == null
+            ? types.allocatePhi(null, null, value)
+            : types.addPhiInput(null, valueType, value);
+      }
+    }
+    T type = node.isConst() ? types.constMapType : types.mapType;
+    return types.allocateMap(keyType, valueType, type);
+  }
+
   bool isThisOrSuper(Node node) => node.isThis() || node.isSuper();
 
   bool isInClassOrSubclass(Element element) {
@@ -904,12 +939,14 @@
     }
     Selector selector = elements.getSelector(node);
     ArgumentsTypes arguments = analyzeArguments(node.arguments);
+    // In erroneous code the number of arguments in the selector might not
+    // match the function element.
     if (!selector.applies(element, compiler)) return types.dynamicType;
 
     T returnType = handleStaticSend(node, selector, element, arguments);
     if (Elements.isGrowableListConstructorCall(element, node, compiler)) {
       return inferrer.concreteTypes.putIfAbsent(
-          node, () => types.allocateContainer(
+          node, () => types.allocateList(
               types.growableListType, node, outermostElement,
               types.nonNullEmpty(), 0));
     } else if (Elements.isFixedListConstructorCall(element, node, compiler)
@@ -922,7 +959,7 @@
               : arguments.positional[1];
 
       return inferrer.concreteTypes.putIfAbsent(
-          node, () => types.allocateContainer(
+          node, () => types.allocateList(
               types.fixedListType, node, outermostElement,
               elementType, length));
     } else if (Elements.isConstructorOfTypedArraySubclass(element, compiler)) {
@@ -930,7 +967,7 @@
       T elementType = inferrer.returnTypeOfElement(
           element.getEnclosingClass().lookupMember('[]'));
       return inferrer.concreteTypes.putIfAbsent(
-        node, () => types.allocateContainer(
+        node, () => types.allocateList(
           types.nonNullExact(element.getEnclosingClass()), node,
           outermostElement, elementType, length));
     } else if (element.isFunction() || element.isConstructor()) {
@@ -1028,6 +1065,7 @@
                      Selector selector,
                      Element element,
                      ArgumentsTypes arguments) {
+    // Erroneous elements may be unresolved, for example missing getters.
     if (Elements.isUnresolved(element)) return types.dynamicType;
     return inferrer.registerCalledElement(
         node, selector, outermostElement, element, arguments,
diff --git a/sdk/lib/_internal/compiler/implementation/inferrer/type_graph_inferrer.dart b/sdk/lib/_internal/compiler/implementation/inferrer/type_graph_inferrer.dart
index 0cd9be4..c31b2c0 100644
--- a/sdk/lib/_internal/compiler/implementation/inferrer/type_graph_inferrer.dart
+++ b/sdk/lib/_internal/compiler/implementation/inferrer/type_graph_inferrer.dart
@@ -8,6 +8,7 @@
 import '../dart_types.dart' show DartType, InterfaceType, TypeKind;
 import '../elements/elements.dart';
 import '../tree/tree.dart' show LiteralList, Node;
+import '../ir/ir_nodes.dart' show IrNode;
 import '../types/types.dart' show TypeMask, ContainerTypeMask, TypesInferrer;
 import '../universe/universe.dart' show Selector, TypedSelector, SideEffects;
 import '../dart2jslib.dart' show Compiler, TreeElementMapping;
@@ -50,8 +51,8 @@
   final Map<Element, TypeInformation> typeInformations =
       new Map<Element, TypeInformation>();
 
-  /// [ContainerTypeInformation] for allocated containers.
-  final Map<Node, TypeInformation> allocatedContainers =
+  /// [ListTypeInformation] for allocated lists.
+  final Map<Node, TypeInformation> allocatedLists =
       new Map<Node, TypeInformation>();
 
   /// Cache of [ConcreteTypeInformation].
@@ -270,10 +271,10 @@
     return type == nullType;
   }
 
-  TypeInformation allocateContainer(TypeInformation type,
-                                    Node node,
-                                    Element enclosing,
-                                    [TypeInformation elementType, int length]) {
+  TypeInformation allocateList(TypeInformation type,
+                               Node node,
+                               Element enclosing,
+                               [TypeInformation elementType, int length]) {
     bool isTypedArray = (compiler.typedDataClass != null)
         && type.type.satisfies(compiler.typedDataClass, compiler);
     bool isConst = (type.type == compiler.typesTask.constListType);
@@ -293,8 +294,17 @@
     element.inferred = isElementInferred;
 
     allocatedTypes.add(element);
-    return allocatedContainers[node] =
-        new ContainerTypeInformation(mask, element, length);
+    return allocatedLists[node] =
+        new ListTypeInformation(mask, element, length);
+  }
+
+  TypeInformation allocateMap(TypeInformation keyType,
+                              TypeInformation valueType,
+                              ConcreteTypeInformation type) {
+    MapTypeInformation map =
+        new MapTypeInformation(keyType, valueType, type.type);
+    allocatedTypes.add(map);
+    return map;
   }
 
   Selector newTypedSelector(TypeInformation info, Selector selector) {
@@ -416,7 +426,7 @@
   /// The maximum number of times we allow a node in the graph to
   /// change types. If a node reaches that limit, we give up
   /// inferencing on it and give it the dynamic type.
-  final int MAX_CHANGE_COUNT = 5;
+  final int MAX_CHANGE_COUNT = 6;
 
   int overallRefineCount = 0;
   int addedInGraph = 0;
@@ -424,6 +434,23 @@
   TypeGraphInferrerEngine(Compiler compiler, this.mainElement)
         : super(compiler, new TypeInformationSystem(compiler));
 
+  void analyzeContainer(ListTypeInformation info) {
+    if (info.analyzed) return;
+    info.analyzed = true;
+    ContainerTracerVisitor tracer = new ContainerTracerVisitor(info, this);
+    List<TypeInformation> newAssignments = tracer.run();
+    if (newAssignments == null) {
+      return;
+    }
+    info.bailedOut = false;
+    info.elementType.inferred = true;
+    TypeMask fixedListType = compiler.typesTask.fixedListType;
+    if (info.originalContainerType.forwardTo == fixedListType) {
+      info.checksGrowable = tracer.callsGrowableMethod;
+    }
+    newAssignments.forEach(info.elementType.addAssignment);
+  }
+
   void runOverAllElements() {
     if (compiler.disableTypeInference) return;
     compiler.progress.reset();
@@ -444,18 +471,10 @@
     refine();
 
     // Try to infer element types of lists.
-    types.allocatedContainers.values.forEach((ContainerTypeInformation info) {
+    types.allocatedLists.values.forEach((ListTypeInformation info) {
       if (info.elementType.inferred) return;
-      ContainerTracerVisitor tracer = new ContainerTracerVisitor(info, this);
-      List<TypeInformation> newAssignments = tracer.run();
-      if (newAssignments == null) return;
-
-      info.elementType.inferred = true;
-      TypeMask fixedListType = compiler.typesTask.fixedListType;
-      if (info.originalContainerType.forwardTo == fixedListType) {
-        info.checksGrowable = tracer.callsGrowableMethod;
-      }
-      newAssignments.forEach(info.elementType.addAssignment);
+      analyzeContainer(info);
+      if (info.bailedOut) return;
       workQueue.add(info);
       workQueue.add(info.elementType);
     });
@@ -476,7 +495,7 @@
     refine();
 
     if (_VERBOSE) {
-      types.allocatedContainers.values.forEach((ContainerTypeInformation info) {
+      types.allocatedLists.values.forEach((ListTypeInformation info) {
         print('${info.type} '
               'for ${info.originalContainerType.allocationNode} '
               'at ${info.originalContainerType.allocationElement}');
@@ -493,12 +512,12 @@
     if (analyzedElements.contains(element)) return;
     analyzedElements.add(element);
 
-      var visitor;
-      if (compiler.irBuilder.hasIr(element)) {
-        visitor = new IrTypeInferrerVisitor(compiler, element, this);
-      } else {
-        visitor = new SimpleTypeInferrerVisitor(element, compiler, this);
-      }
+    var visitor;
+    if (compiler.irBuilder.hasIr(element)) {
+      visitor = new IrTypeInferrerVisitor(compiler, element, this);
+    } else {
+      visitor = new SimpleTypeInferrerVisitor(element, compiler, this);
+    }
     TypeInformation type;
     compiler.withCurrentElement(element, () {
       type = visitor.run();
@@ -511,7 +530,7 @@
         // If [element] is final and has an initializer, we record
         // the inferred type.
         if (node.asSendSet() != null) {
-          if (type is! ContainerTypeInformation) {
+          if (type is! ListTypeInformation) {
             // For non-container types, the constant handler does
             // constant folding that could give more precise results.
             Constant value =
@@ -846,7 +865,7 @@
       throw new UnsupportedError(
           "Cannot query the type inferrer when type inference is disabled.");
     }
-    return types.getInferredTypeOf(element).callers.keys;
+    return types.getInferredTypeOf(element).callers;
   }
 
   /**
@@ -911,12 +930,12 @@
 
   TypeMask getTypeOfNode(Element owner, Node node) {
     if (compiler.disableTypeInference) return compiler.typesTask.dynamicType;
-    return inferrer.types.allocatedContainers[node].type;
+    return inferrer.types.allocatedLists[node].type;
   }
 
   bool isFixedArrayCheckedForGrowable(Node node) {
     if (compiler.disableTypeInference) return true;
-    ContainerTypeInformation info = inferrer.types.allocatedContainers[node];
+    ListTypeInformation info = inferrer.types.allocatedLists[node];
     return info.checksGrowable;
   }
 
@@ -944,14 +963,6 @@
     return result;
   }
 
-  Iterable<TypeMask> get containerTypes {
-    if (compiler.disableTypeInference) {
-      throw new UnsupportedError(
-          "Cannot query the type inferrer when type inference is disabled.");
-    }
-    return inferrer.types.allocatedContainers.values.map((info) => info.type);
-  }
-
   Iterable<Element> getCallersOf(Element element) {
     if (compiler.disableTypeInference) {
       throw new UnsupportedError(
@@ -962,14 +973,8 @@
 
   bool isCalledOnce(Element element) {
     if (compiler.disableTypeInference) return false;
-
-    int count = 0;
     ElementTypeInformation info = inferrer.types.getInferredTypeOf(element);
-    for (var set in info.callers.values) {
-      count += set.length;
-      if (count > 1) return false;
-    }
-    return count == 1;
+    return info.isCalledOnce();
   }
 
   void clear() {
diff --git a/sdk/lib/_internal/compiler/implementation/inferrer/type_graph_nodes.dart b/sdk/lib/_internal/compiler/implementation/inferrer/type_graph_nodes.dart
index 06d0b06..3f4dc37 100644
--- a/sdk/lib/_internal/compiler/implementation/inferrer/type_graph_nodes.dart
+++ b/sdk/lib/_internal/compiler/implementation/inferrer/type_graph_nodes.dart
@@ -208,8 +208,16 @@
  */
 class ElementTypeInformation extends TypeInformation {
   final Element element;
-  final Map<Element, Setlet<Spannable>> callers =
-      new Map<Element, Setlet<Spannable>>();
+
+  /**
+   * This map contains the callers of [element]. It stores all unique call sites
+   * to enable counting the global number of call sites of [element].
+   *
+   * A call site is either an AST [Node], an [IrNode] or in the case of
+   * synthesized calls, an [Element] (see uses of [synthesizeForwardingCall]
+   * in [SimpleTypeInferrerVisitor]).
+   */
+  final Map<Element, Setlet<Spannable>> _callers = new Map<Element, Setlet>();
 
   ElementTypeInformation.internal(this.element, assignments)
       : super(null, assignments);
@@ -224,18 +232,30 @@
   }
 
   void addCall(Element caller, Spannable node) {
-    callers.putIfAbsent(caller, () => new Setlet<Spannable>()).add(node);
+    assert(node is Node || node is IrNode || node is Element);
+    _callers.putIfAbsent(caller, () => new Setlet()).add(node);
   }
 
-  void removeCall(Element caller, Spannable node) {
-    Setlet<Spannable> calls = callers[caller];
+  void removeCall(Element caller, node) {
+    Setlet calls = _callers[caller];
     if (calls == null) return;
     calls.remove(node);
     if (calls.isEmpty) {
-      callers.remove(caller);
+      _callers.remove(caller);
     }
   }
 
+  Iterable<Element> get callers => _callers.keys;
+
+  bool isCalledOnce() {
+    int count = 0;
+    for (var set in _callers.values) {
+      count += set.length;
+      if (count > 1) return false;
+    }
+    return count == 1;
+  }
+
   TypeMask handleSpecialCases(TypeGraphInferrerEngine inferrer) {
     if (abandonInferencing) {
       return type;
@@ -816,10 +836,10 @@
 }
 
 /**
- * A [ContainerTypeInformation] is a [TypeInformation] created
+ * A [ListTypeInformation] is a [TypeInformation] created
  * for each `List` instantiations.
  */
-class ContainerTypeInformation extends TypeInformation {
+class ListTypeInformation extends TypeInformation {
   final ElementInContainerTypeInformation elementType;
 
   /** The container type before it is inferred. */
@@ -832,23 +852,30 @@
   int inferredLength;
 
   /**
-   * Whether this container goes through a growable check.
+   * Whether this list goes through a growable check.
    * We conservatively assume it does.
    */
   bool checksGrowable = true;
 
-  ContainerTypeInformation(this.originalContainerType,
-                           this.elementType,
-                           this.originalLength) {
+  // The set of [TypeInformation] where the traced container could
+  // flow in.
+  final Setlet<TypeInformation> flowsInto = new Setlet<TypeInformation>();
+
+  bool bailedOut = true;
+  bool analyzed = false;
+
+  ListTypeInformation(this.originalContainerType,
+                      this.elementType,
+                      this.originalLength) {
     type = originalContainerType;
     inferredLength = originalContainerType.length;
     elementType.addUser(this);
   }
 
-  String toString() => 'Container type $type';
+  String toString() => 'List type $type';
 
   accept(TypeInformationVisitor visitor) {
-    return visitor.visitContainerTypeInformation(this);
+    return visitor.visitListTypeInformation(this);
   }
 
   bool hasStableType(TypeGraphInferrerEngine inferrer) {
@@ -872,7 +899,7 @@
 
 /**
  * An [ElementInContainerTypeInformation] holds the common type of the
- * elements in a [ContainerTypeInformation].
+ * elements in a [ListTypeInformation].
  */
 class ElementInContainerTypeInformation extends TypeInformation {
   /** Whether the element type in that container has been inferred. */
@@ -901,6 +928,32 @@
 }
 
 /**
+ * A [MapTypeInformation] is a [TypeInformation] created
+ * for maps.
+ */
+class MapTypeInformation extends TypeInformation {
+  final TypeInformation keyType;
+  final TypeInformation valueType;
+  final TypeMask initialType;
+
+  MapTypeInformation(this.keyType, this.valueType, this.initialType) {
+    keyType.addUser(this);
+    valueType.addUser(this);
+    type = initialType;
+  }
+
+  accept(TypeInformationVisitor visitor) {
+    return visitor.visitMapTypeInformation(this);
+  }
+
+  TypeMask refine(TypeGraphInferrerEngine inferrer) {
+    return initialType;
+  }
+
+  String toString() => 'Map $type';
+}
+
+/**
  * A [PhiElementTypeInformation] is an union of
  * [ElementTypeInformation], that is local to a method.
  */
@@ -927,7 +980,8 @@
   T visitPhiElementTypeInformation(PhiElementTypeInformation info);
   T visitElementInContainerTypeInformation(
       ElementInContainerTypeInformation info);
-  T visitContainerTypeInformation(ContainerTypeInformation info);
+  T visitListTypeInformation(ListTypeInformation info);
+  T visitMapTypeInformation(MapTypeInformation info);
   T visitConcreteTypeInformation(ConcreteTypeInformation info);
   T visitClosureCallSiteTypeInformation(ClosureCallSiteTypeInformation info);
   T visitStaticCallSiteTypeInformation(StaticCallSiteTypeInformation info);
diff --git a/sdk/lib/_internal/compiler/implementation/ir/ir_builder.dart b/sdk/lib/_internal/compiler/implementation/ir/ir_builder.dart
index 86cdabd..0a747e5 100644
--- a/sdk/lib/_internal/compiler/implementation/ir/ir_builder.dart
+++ b/sdk/lib/_internal/compiler/implementation/ir/ir_builder.dart
@@ -6,12 +6,13 @@
 
 import 'ir_nodes.dart';
 import '../elements/elements.dart';
+import '../elements/modelx.dart' show FunctionElementX;
 import '../dart2jslib.dart';
 import '../source_file.dart';
 import '../tree/tree.dart';
 import '../scanner/scannerlib.dart' show Token;
 import '../js_backend/js_backend.dart' show JavaScriptBackend;
-import 'ir_pickler.dart' show Unpickler;
+import 'ir_pickler.dart' show Unpickler, IrConstantPool;
 
 /**
  * This task iterates through all resolved elements and builds [IrNode]s. The
@@ -72,8 +73,10 @@
           if (irNode != null) {
             assert(() {
               // In host-checked mode, serialize and de-serialize the IrNode.
-              List<int> data = irNode.pickle();
-              irNode = new Unpickler(compiler).unpickle(data);
+              LibraryElement library = element.declaration.getLibrary();
+              IrConstantPool constantPool = IrConstantPool.forLibrary(library);
+              List<int> data = irNode.pickle(constantPool);
+              irNode = new Unpickler(compiler, constantPool).unpickle(data);
               return true;
             });
             nodes[element] = irNode;
@@ -115,8 +118,11 @@
   }
 
   void unlinkTreeAndToken(element) {
+    // Ensure the funciton signature has been computed (requires the AST).
+    assert(element is !FunctionElementX || element.functionSignature != null);
     element.beginToken.next = null;
-    element.cachedNode = null;
+    // TODO(lry): Mark [element] so that parseNode will fail an assertion.
+    // element.cachedNode = null;
   }
 
   SourceFile elementSourceFile(Element element) {
@@ -211,9 +217,9 @@
 
   IrNode visitReturn(Return node) {
     assert(!blockReturns);
-    IrNode value;
+    IrExpression value;
     // TODO(lry): support native returns.
-    if (node.beginToken.value == 'native') return giveup();
+    if (node.beginToken.value == 'native') giveup();
     if (node.expression == null) {
       value = builder.addConstant(constantSystem.createNull(), node);
     } else {
@@ -251,35 +257,63 @@
 //  IrNode visitLiteralSymbol(LiteralSymbol node) => visitExpression(node);
 
   IrNode visitAssert(Send node) {
-    return giveup();
+    giveup();
   }
 
   IrNode visitClosureSend(Send node) {
-    return giveup();
+    giveup();
   }
 
   IrNode visitDynamicSend(Send node) {
-    return giveup();
+    giveup();
   }
 
   IrNode visitGetterSend(Send node) {
-    return giveup();
+    giveup();
   }
 
   IrNode visitOperatorSend(Send node) {
-    return giveup();
+    giveup();
   }
 
   IrNode visitStaticSend(Send node) {
-    return giveup();
+    Selector selector = elements.getSelector(node);
+    Element element = elements[node];
+
+    // TODO(lry): support static fields. (separate IR instruction?)
+    if (element.isField() || element.isGetter()) giveup();
+    // TODO(lry): support constructors / factory calls.
+    if (element.isConstructor()) giveup();
+    // TODO(lry): support foreign functions.
+    if (element.isForeign(compiler)) giveup();
+    // TODO(lry): for elements that could not be resolved emit code to throw a
+    // [NoSuchMethodError].
+    if (element.isErroneous()) giveup();
+    // TODO(lry): support named arguments
+    if (selector.namedArgumentCount != 0) giveup();
+
+    List<IrExpression> arguments = <IrExpression>[];
+    // TODO(lry): support default arguments, need support for locals.
+    bool succeeded = selector.addArgumentsToList(
+        node.arguments, arguments, element.implementation,
+        (node) => node.accept(this), (node) => giveup(), compiler);
+    if (!succeeded) {
+      // TODO(lry): generate code to throw a [WrongArgumentCountError].
+      giveup();
+    }
+    // TODO(lry): generate IR for object identicality.
+    if (element == compiler.identicalFunction) giveup();
+    IrInvokeStatic result = builder.addStatement(
+        new IrInvokeStatic(nodePosition(node), element, selector, arguments));
+    return result;
   }
 
   IrNode visitSuperSend(Send node) {
-    return giveup();
+    giveup();
   }
 
   IrNode visitTypeReferenceSend(Send node) {
-    return giveup();
+    giveup();
   }
 
   static final String ABORT_IRNODE_BUILDER = "IrNode builder aborted";
diff --git a/sdk/lib/_internal/compiler/implementation/ir/ir_nodes.dart b/sdk/lib/_internal/compiler/implementation/ir/ir_nodes.dart
index 5a0672c..1aeeca8 100644
--- a/sdk/lib/_internal/compiler/implementation/ir/ir_nodes.dart
+++ b/sdk/lib/_internal/compiler/implementation/ir/ir_nodes.dart
@@ -7,7 +7,10 @@
 library dart2js.ir_nodes;
 
 import '../dart2jslib.dart' show Constant;
-import 'ir_pickler.dart' show Pickler;
+import '../elements/elements.dart' show FunctionElement, LibraryElement;
+import 'ir_pickler.dart' show Pickler, IrConstantPool;
+import '../universe/universe.dart' show Selector, SelectorKind;
+import '../util/util.dart' show Spannable;
 
 /**
  * A pair of source offset and an identifier name. Identifier names are used in
@@ -19,7 +22,7 @@
   PositionWithIdentifierName(this.offset, this.sourceName);
 }
 
-abstract class IrNode {
+abstract class IrNode implements Spannable {
   static int hashCount = 0;
   final int hashCode = hashCount = (hashCount + 1) & 0x3fffffff;
 
@@ -31,12 +34,18 @@
 
   String get sourceName => (position is int) ? null : position.sourceName;
 
-  List<int> pickle() => new Pickler().pickle(this);
+  List<int> pickle(IrConstantPool constantPool) {
+    return new Pickler(constantPool).pickle(this);
+  }
 
   accept(IrNodesVisitor visitor);
 }
 
-class IrFunction extends IrNode {
+abstract class IrExpression extends IrNode {
+  IrExpression(position) : super(position);
+}
+
+class IrFunction extends IrExpression {
   final List<IrNode> statements;
 
   final int endOffset;
@@ -49,14 +58,14 @@
 }
 
 class IrReturn extends IrNode {
-  final IrNode value;
+  final IrExpression value;
 
   IrReturn(position, this.value) : super(position);
 
   accept(IrNodesVisitor visitor) => visitor.visitIrReturn(this);
 }
 
-class IrConstant extends IrNode {
+class IrConstant extends IrExpression {
   final Constant value;
 
   IrConstant(position, this.value) : super(position);
@@ -64,6 +73,27 @@
   accept(IrNodesVisitor visitor) => visitor.visitIrConstant(this);
 }
 
+class IrInvokeStatic extends IrExpression {
+  final FunctionElement target;
+
+  final List<IrExpression> arguments;
+
+  /**
+   * The selector encodes how the function is invoked: number of positional
+   * arguments, names used in named arguments. This information is required
+   * to build the [StaticCallSiteTypeInformation] for the inference graph.
+   */
+  final Selector selector;
+
+  IrInvokeStatic(position, this.target, this.selector, this.arguments)
+    : super(position) {
+    assert(selector.kind == SelectorKind.CALL);
+    assert(selector.name == target.name);
+  }
+
+  accept(IrNodesVisitor visitor) => visitor.visitIrInvokeStatic(this);
+}
+
 
 abstract class IrNodesVisitor<T> {
   T visit(IrNode node) => node.accept(this);
@@ -72,9 +102,11 @@
     for (IrNode n in nodes) visit(n);
   }
 
-  T visitNode(IrNode node);
+  T visitIrNode(IrNode node);
 
-  T visitIrFunction(IrFunction node) => visitNode(node);
-  T visitIrReturn(IrReturn node) => visitNode(node);
-  T visitIrConstant(IrConstant node) => visitNode(node);
+  T visitIrExpression(IrExpression node) => visitIrNode(node);
+  T visitIrFunction(IrFunction node) => visitIrExpression(node);
+  T visitIrReturn(IrReturn node) => visitIrNode(node);
+  T visitIrConstant(IrConstant node) => visitIrExpression(node);
+  T visitIrInvokeStatic(IrInvokeStatic node) => visitIrExpression(node);
 }
diff --git a/sdk/lib/_internal/compiler/implementation/ir/ir_pickler.dart b/sdk/lib/_internal/compiler/implementation/ir/ir_pickler.dart
index ff43852..317940c 100644
--- a/sdk/lib/_internal/compiler/implementation/ir/ir_pickler.dart
+++ b/sdk/lib/_internal/compiler/implementation/ir/ir_pickler.dart
@@ -16,24 +16,30 @@
 import '../tree/tree.dart' show
     DartString, LiteralDartString, RawSourceDartString, EscapedSourceDartString,
     ConsDartString;
+import '../elements/elements.dart' show
+    Element, LibraryElement, FunctionElement;
+import '../universe/universe.dart' show Selector;
 
 part 'ir_unpickler.dart';
 
-/* The elementCount only includes elements that might potentially be referred
- * to in back reference, for example nodes.
+/* The int(entries) counts expression nodes, which might potentially be
+ * referred to in a back reference.
  *
- * pickle     ::= int(elementCount) node(function)
+ * pickle     ::= int(entries) node(function)
  *
  * int        ::= see [writeInt] for number encoding
  *
  * string     ::= byte(STRING_ASCII) int(length) {byte(ascii)}
  *              | byte(STRING_UTF8) int(length) {byte(utf8)}
  *
- * node       ::= byte(BACK_REFERENCE) int(index)
- *              | byte(NODE_FUNCTION) position int(endSourceOffset)
+ * node       ::= byte(NODE_FUNCTION) position int(endSourceOffset)
  *                    int(namePosition) int(statements) {node(statement)}
- *              | byte(NODE_RETURN) position node(value)
+ *              | byte(NODE_RETURN) position reference(value)
  *              | byte(NODE_CONST) position constant
+ *              | byte(NODE_INVOKE_STATIC) position element int(arguments)
+ *                    {reference(argument)}
+ *
+ * reference  ::= int(indexDelta)
  *
  * position   ::= byte(POSITION_WITH_ID) string(sourceName) int(sourceOffset)
  *              | byte(POSITION_OFFSET) int(sourceOffset)
@@ -46,20 +52,24 @@
  *              | byte(CONST_STRING_ESCAPED) string int(length)
  *              | byte(CONST_STRING_CONS) constant(left) constant(right)
  *              | byte(CONST_NULL)
+ *
+ * element    ::= int(constantPoolIndex)
  */
 class Pickles {
-  static const int BACK_REFERENCE = 1;
-
-  static const int STRING_ASCII = BACK_REFERENCE + 1;
+  static const int STRING_ASCII = 1;
   static const int STRING_UTF8  = STRING_ASCII + 1;
 
-  static const int BEGIN_NODE    = STRING_UTF8 + 1;
-  static const int NODE_FUNCTION = BEGIN_NODE;
-  static const int NODE_RETURN   = NODE_FUNCTION + 1;
-  static const int NODE_CONST    = NODE_RETURN + 1;
-  static const int END_NODE      = NODE_CONST;
+  static const int BEGIN_STATEMENT_NODE = STRING_UTF8 + 1;
+  static const int NODE_RETURN          = BEGIN_STATEMENT_NODE;
+  static const int END_STATEMENT_NODE   = NODE_RETURN;
 
-  static const int BEGIN_POSITION   = END_NODE + 1;
+  static const int BEGIN_EXPRESSION_NODE = END_STATEMENT_NODE + 1;
+  static const int NODE_FUNCTION         = BEGIN_EXPRESSION_NODE;
+  static const int NODE_CONST            = NODE_FUNCTION + 1;
+  static const int NODE_INVOKE_STATIC    = NODE_CONST + 1;
+  static const int END_EXPRESSION_NODE   = NODE_INVOKE_STATIC;
+
+  static const int BEGIN_POSITION   = END_EXPRESSION_NODE + 1;
   static const int POSITION_OFFSET  = BEGIN_POSITION;
   static const int POSITION_WITH_ID = POSITION_OFFSET + 1;
   static const int END_POSITION     = POSITION_WITH_ID;
@@ -76,6 +86,39 @@
   static const int END_CONST            = CONST_NULL;
 
   static const int END_TAG = END_CONST;
+
+  static bool isExpressionTag(int tag) {
+    return BEGIN_EXPRESSION_NODE <= tag && tag <= END_EXPRESSION_NODE;
+  }
+}
+
+class IrConstantPool {
+  static Map<LibraryElement, IrConstantPool> _constantPools =
+      <LibraryElement, IrConstantPool>{};
+
+  static IrConstantPool forLibrary(LibraryElement library) {
+    return _constantPools.putIfAbsent(library, () => new IrConstantPool());
+  }
+
+  /**
+   * The entries of the constant pool. Method [add] ensures that an object
+   * is only added once to this list.
+   */
+  List<Object> entries = <Object>[];
+
+  /**
+   * This map is the inverse of [entries], it stores the index of each object.
+   */
+  Map<Object, int> entryIndex = <Object, int>{};
+
+  int add(Object o) {
+    return entryIndex.putIfAbsent(o, () {
+      entries.add(o);
+      return entries.length - 1;
+    });
+  }
+
+  Object get(int index) => entries[index];
 }
 
 /**
@@ -84,7 +127,9 @@
 class Pickler extends IrNodesVisitor {
   ConstantPickler constantPickler;
 
-  Pickler() {
+  IrConstantPool constantPool;
+
+  Pickler(this.constantPool) {
     assert(Pickles.END_TAG <= 0xff);
     constantPickler = new ConstantPickler(this);
   }
@@ -97,10 +142,10 @@
   /** Offset of the next byte that will be written. */
   int offset;
 
-  /** Stores the intex for emitted elements that might be back-referenced. */
+  /** Stores the index for emitted entries that might be back-referenced. */
   Map<Object, int> emitted;
 
-  /** A counter for emitted elements. */
+  /** A counter for entries in the [emitted] map. */
   int index;
 
   /**
@@ -122,7 +167,7 @@
 
     // The array is longer than necessary, create a copy with the actual size.
     Uint8List result = new Uint8List(offset);
-    // Emit the number or elements in the beginning.
+    // Emit the number or entries in the beginning.
     for (int i = 0, j = sizeOffset; i < sizeBytes; i++, j++) {
       result[i] = data[j];
     }
@@ -209,19 +254,24 @@
   }
 
   /**
-   * If [element] has already been emitted, this function writes a back
-   * reference to the buffer and returns [:true:]. Otherwise, it registers the
-   * element in the [emitted] map and the [:false:].
+   * This function records [IrExpression] nodes in the [emitted] table. It
+   * needs to be invoked for each visited expression node to enable pickling
+   * back references to the node in [writeBackReference].
    */
-  bool writeBackrefIfEmitted(Object element) {
-    int elementIndex = emitted[element];
-    if (elementIndex != null) {
-      writeByte(Pickles.BACK_REFERENCE);
-      writeInt(elementIndex);
-      return true;
-    } else {
-      emitted[element] = index++;
-      return false;
+  void recordForBackReference(IrExpression entry) {
+    assert(emitted[entry] == null);
+    emitted[entry] = index++;
+  }
+
+  void writeBackReference(IrExpression entry) {
+    int entryIndex = emitted[entry];
+    writeInt(index - entryIndex);
+  }
+
+  void writeBackReferenceList(List<IrExpression> entries) {
+    writeInt(entries.length);
+    for (int i = 0; i < entries.length; i++) {
+      writeBackReference(entries[i]);
     }
   }
 
@@ -280,33 +330,55 @@
     writeByte(Pickles.CONST_NULL);
   }
 
+  void writeElement(Element element) {
+    writeInt(constantPool.add(element));
+  }
+
+  void writeSelector(Selector selector) {
+    writeInt(constantPool.add(selector));
+  }
+
+  void writeNodeList(List<IrNode> nodes) {
+    writeInt(nodes.length);
+    for (int i = 0; i < nodes.length; i++) {
+      nodes[i].accept(this);
+    }
+  }
+
   void visitIrFunction(IrFunction node) {
-    if (writeBackrefIfEmitted(node)) return;
+    recordForBackReference(node);
     writeByte(Pickles.NODE_FUNCTION);
     writePosition(node.position);
     writeInt(node.endOffset);
     writeInt(node.namePosition);
-    writeInt(node.statements.length);
-    for (int i = 0; i < node.statements.length; i++) {
-      node.statements[i].accept(this);
-    }
+    writeNodeList(node.statements);
   }
 
   void visitIrReturn(IrReturn node) {
-    if (writeBackrefIfEmitted(node)) return;
     writeByte(Pickles.NODE_RETURN);
     writePosition(node.position);
-    node.value.accept(this);
+    writeBackReference(node.value);
   }
 
   void visitIrConstant(IrConstant node) {
-    if (writeBackrefIfEmitted(node)) return;
+    recordForBackReference(node);
     writeByte(Pickles.NODE_CONST);
     writePosition(node.position);
     node.value.accept(constantPickler);
   }
 
-  void visitNode(IrNode node) {
+  void visitIrInvokeStatic(IrInvokeStatic node) {
+    recordForBackReference(node);
+    writeByte(Pickles.NODE_INVOKE_STATIC);
+    writePosition(node.position);
+    writeElement(node.target);
+    writeSelector(node.selector);
+    // TODO(lry): compact encoding when the arity of the selector and the
+    // arguments list are the same
+    writeBackReferenceList(node.arguments);
+  }
+
+  void visitIrNode(IrNode node) {
     throw "Unexpected $node in pickler.";
   }
 }
diff --git a/sdk/lib/_internal/compiler/implementation/ir/ir_unpickler.dart b/sdk/lib/_internal/compiler/implementation/ir/ir_unpickler.dart
index c1b9f21..6f70d59 100644
--- a/sdk/lib/_internal/compiler/implementation/ir/ir_unpickler.dart
+++ b/sdk/lib/_internal/compiler/implementation/ir/ir_unpickler.dart
@@ -7,16 +7,18 @@
 class Unpickler {
   final Compiler compiler;
 
-  Unpickler(this.compiler);
+  final IrConstantPool constantPool;
+
+  Unpickler(this.compiler, this.constantPool);
 
   List<int> data;
 
   int offset;
 
-  /** For each element index, the corresponding unpickled element. */
+  /** For each entry index, the corresponding unpickled object. */
   List<Object> unpickled;
 
-  /** Counter for elements in [unpickled]. */
+  /** Counter for entries in [unpickled]. */
   int index;
 
   /**
@@ -30,10 +32,10 @@
   IrFunction unpickle(List<int> data) {
     this.data = data;
     offset = 0;
-    int numElements = readInt();
-    unpickled = new List<Object>(numElements);
+    int numEntries = readInt();
+    unpickled = new List<Object>(numEntries);
     index = 0;
-    return readElement();
+    return readEntry();
   }
 
   int readByte() {
@@ -69,43 +71,76 @@
     }
   }
 
+  Element readElement() {
+    int elementIndex = readInt();
+    return constantPool.get(elementIndex);
+  }
+
+  Selector readSelector() {
+    int elementIndex = readInt();
+    return constantPool.get(elementIndex);
+  }
+
   /**
-   * Read an element that might be a back reference, or that might be used
+   * Read an entry that might be a back reference, or that might be used
    * in a back reference.
    */
-  Object readElement() {
-    // Obtain the index of the element before reading its content to ensure
-    // that elements are placed in consecutive order in [unpickled].
-    int elementIndex = index++;
+  IrNode readEntry() {
     int tag = readByte();
-    if (tag == Pickles.BACK_REFERENCE) {
-      int backIndex = readInt();
-      assert(unpickled[backIndex] != null);
-      return unpickled[backIndex];
+    if (Pickles.isExpressionTag(tag)) {
+      return readExpressionEntry(tag);
+    } else if (tag == Pickles.NODE_RETURN) {
+      return readReturnNode();
+    } else {
+      compiler.internalError("Unexpected entry tag: $tag");
     }
-    Object result;
+  }
+
+  IrExpression readExpressionEntry(int tag) {
+    int entryIndex = index++;
+    IrExpression result;
     if (tag == Pickles.NODE_CONST) {
       result = readConstantNode();
     } else if (tag == Pickles.NODE_FUNCTION) {
       result = readFunctionNode();
-    } else if (tag == Pickles.NODE_RETURN) {
-      result = readReturnNode();
+    } else if (tag == Pickles.NODE_INVOKE_STATIC) {
+      result = readInvokeStaticNode();
     } else {
-      compiler.internalError("Unexpected element tag: $tag");
+      compiler.internalError("Unexpected expression entry tag: $tag");
     }
-    unpickled[elementIndex] = result;
+    return unpickled[entryIndex] = result;
+  }
+
+  IrExpression readBackReference() {
+    int indexDelta = readInt();
+    int entryIndex = index - indexDelta;
+    assert(unpickled[entryIndex] != null);
+    return unpickled[entryIndex];
+  }
+
+  List<IrExpression> readBackReferenceList() {
+    int length = readInt();
+    List<IrExpression> result = new List<IrExpression>(length);
+    for (int i = 0; i < length; i++) {
+      result[i] = readBackReference();
+    }
     return result;
   }
 
+  List<IrNode> readNodeList() {
+    int length = readInt();
+    List nodes = new List<IrNode>(length);
+    for (int i = 0; i < length; i++) {
+      nodes[i] = readEntry();
+    }
+    return nodes;
+  }
+
   IrFunction readFunctionNode() {
     var position = readPosition();
     int endOffset = readInt();
     int namePosition = readInt();
-    int numStatements = readInt();
-    List<IrNode> statements = new List<IrNode>(numStatements);
-    for (int i = 0; i < numStatements; i++) {
-      statements[i] = readElement();
-    }
+    List<IrNode> statements = readNodeList();
     return new IrFunction(position, endOffset, namePosition, statements);
   }
 
@@ -117,10 +152,18 @@
 
   IrReturn readReturnNode() {
     var position = readPosition();
-    IrNode value = readElement();
+    IrExpression value = readBackReference();
     return new IrReturn(position, value);
   }
 
+  IrInvokeStatic readInvokeStaticNode() {
+    var position = readPosition();
+    FunctionElement functionElement = readElement();
+    Selector selector = readSelector();
+    List<IrExpression> arguments = readBackReferenceList();
+    return new IrInvokeStatic(position, functionElement, selector, arguments);
+  }
+
   /* int | PositionWithIdentifierName */ readPosition() {
     if (readByte() == Pickles.POSITION_OFFSET) {
       return readInt();
diff --git a/sdk/lib/_internal/compiler/implementation/js/nodes.dart b/sdk/lib/_internal/compiler/implementation/js/nodes.dart
index e6268a3..5d18972 100644
--- a/sdk/lib/_internal/compiler/implementation/js/nodes.dart
+++ b/sdk/lib/_internal/compiler/implementation/js/nodes.dart
@@ -453,8 +453,6 @@
 
   Call callWith(List<Expression> arguments) => new Call(this, arguments);
 
-  New newWith(List<Expression> arguments) => new New(this, arguments);
-
   PropertyAccess operator [](expression) {
     if (expression is Expression) {
       return new PropertyAccess(this, expression);
diff --git a/sdk/lib/_internal/compiler/implementation/js_backend/backend.dart b/sdk/lib/_internal/compiler/implementation/js_backend/backend.dart
index 384ca4e..9151b71 100644
--- a/sdk/lib/_internal/compiler/implementation/js_backend/backend.dart
+++ b/sdk/lib/_internal/compiler/implementation/js_backend/backend.dart
@@ -11,114 +11,6 @@
   final Set<HInstruction> allocatedFixedLists = new Set<HInstruction>();
 }
 
-class CheckedModeHelper {
-  final String name;
-
-  const CheckedModeHelper(String this.name);
-
-  Element getElement(Compiler compiler) => compiler.findHelper(name);
-
-  jsAst.Expression generateCall(SsaCodeGenerator codegen,
-                                HTypeConversion node) {
-    Element helperElement = getElement(codegen.compiler);
-    codegen.world.registerStaticUse(helperElement);
-    List<jsAst.Expression> arguments = <jsAst.Expression>[];
-    codegen.use(node.checkedInput);
-    arguments.add(codegen.pop());
-    generateAdditionalArguments(codegen, node, arguments);
-    String helperName = codegen.backend.namer.isolateAccess(helperElement);
-    return new jsAst.Call(new jsAst.VariableUse(helperName), arguments);
-  }
-
-  void generateAdditionalArguments(SsaCodeGenerator codegen,
-                                   HTypeConversion node,
-                                   List<jsAst.Expression> arguments) {
-    // No additional arguments needed.
-  }
-}
-
-class MalformedCheckedModeHelper extends CheckedModeHelper {
-  const MalformedCheckedModeHelper(String name) : super(name);
-
-  void generateAdditionalArguments(SsaCodeGenerator codegen,
-                                   HTypeConversion node,
-                                   List<jsAst.Expression> arguments) {
-    ErroneousElement element = node.typeExpression.element;
-    arguments.add(js.string(element.message));
-  }
-}
-
-class PropertyCheckedModeHelper extends CheckedModeHelper {
-  const PropertyCheckedModeHelper(String name) : super(name);
-
-  void generateAdditionalArguments(SsaCodeGenerator codegen,
-                                   HTypeConversion node,
-                                   List<jsAst.Expression> arguments) {
-    DartType type = node.typeExpression;
-    String additionalArgument = codegen.backend.namer.operatorIsType(type);
-    arguments.add(js.string(additionalArgument));
-  }
-}
-
-class TypeVariableCheckedModeHelper extends CheckedModeHelper {
-  const TypeVariableCheckedModeHelper(String name) : super(name);
-
-  void generateAdditionalArguments(SsaCodeGenerator codegen,
-                                   HTypeConversion node,
-                                   List<jsAst.Expression> arguments) {
-    assert(node.typeExpression.kind == TypeKind.TYPE_VARIABLE);
-    codegen.use(node.typeRepresentation);
-    arguments.add(codegen.pop());
-  }
-}
-
-class SubtypeCheckedModeHelper extends CheckedModeHelper {
-  const SubtypeCheckedModeHelper(String name) : super(name);
-
-  void generateAdditionalArguments(SsaCodeGenerator codegen,
-                                   HTypeConversion node,
-                                   List<jsAst.Expression> arguments) {
-    DartType type = node.typeExpression;
-    Element element = type.element;
-    String isField = codegen.backend.namer.operatorIs(element);
-    arguments.add(js.string(isField));
-    codegen.use(node.typeRepresentation);
-    arguments.add(codegen.pop());
-    String asField = codegen.backend.namer.substitutionName(element);
-    arguments.add(js.string(asField));
-  }
-}
-
-class FunctionTypeCheckedModeHelper extends CheckedModeHelper {
-  const FunctionTypeCheckedModeHelper(String name) : super(name);
-
-  void generateAdditionalArguments(SsaCodeGenerator codegen,
-                                   HTypeConversion node,
-                                   List<jsAst.Expression> arguments) {
-    DartType type = node.typeExpression;
-    String signatureName = codegen.backend.namer.getFunctionTypeName(type);
-    arguments.add(js.string(signatureName));
-
-    if (type.containsTypeVariables) {
-      ClassElement contextClass = Types.getClassContext(type);
-      // TODO(ahe): Creating a string here is unfortunate. It is slow (due to
-      // string concatenation in the implementation), and may prevent
-      // segmentation of '$'.
-      String contextName = codegen.backend.namer.getNameForRti(contextClass);
-      arguments.add(js.string(contextName));
-
-      if (node.contextIsTypeArguments) {
-        arguments.add(new jsAst.LiteralNull());
-        codegen.use(node.context);
-        arguments.add(codegen.pop());
-      } else {
-        codegen.use(node.context);
-        arguments.add(codegen.pop());
-      }
-    }
-  }
-}
-
 /*
  * Invariants:
  *   canInline(function) implies canInline(function, insideLoop:true)
@@ -364,43 +256,7 @@
   final Set<TypedefElement> typedefTypeLiterals = new Set<TypedefElement>();
 
   /// All the checked mode helpers.
-  static const checkedModeHelpers = const [
-      const MalformedCheckedModeHelper('checkMalformedType'),
-      const CheckedModeHelper('voidTypeCheck'),
-      const CheckedModeHelper('stringTypeCast'),
-      const CheckedModeHelper('stringTypeCheck'),
-      const CheckedModeHelper('doubleTypeCast'),
-      const CheckedModeHelper('doubleTypeCheck'),
-      const CheckedModeHelper('numTypeCast'),
-      const CheckedModeHelper('numTypeCheck'),
-      const CheckedModeHelper('boolTypeCast'),
-      const CheckedModeHelper('boolTypeCheck'),
-      const CheckedModeHelper('intTypeCast'),
-      const CheckedModeHelper('intTypeCheck'),
-      const PropertyCheckedModeHelper('numberOrStringSuperNativeTypeCast'),
-      const PropertyCheckedModeHelper('numberOrStringSuperNativeTypeCheck'),
-      const PropertyCheckedModeHelper('numberOrStringSuperTypeCast'),
-      const PropertyCheckedModeHelper('numberOrStringSuperTypeCheck'),
-      const PropertyCheckedModeHelper('stringSuperNativeTypeCast'),
-      const PropertyCheckedModeHelper('stringSuperNativeTypeCheck'),
-      const PropertyCheckedModeHelper('stringSuperTypeCast'),
-      const PropertyCheckedModeHelper('stringSuperTypeCheck'),
-      const CheckedModeHelper('listTypeCast'),
-      const CheckedModeHelper('listTypeCheck'),
-      const PropertyCheckedModeHelper('listSuperNativeTypeCast'),
-      const PropertyCheckedModeHelper('listSuperNativeTypeCheck'),
-      const PropertyCheckedModeHelper('listSuperTypeCast'),
-      const PropertyCheckedModeHelper('listSuperTypeCheck'),
-      const PropertyCheckedModeHelper('interceptedTypeCast'),
-      const PropertyCheckedModeHelper('interceptedTypeCheck'),
-      const SubtypeCheckedModeHelper('subtypeCast'),
-      const SubtypeCheckedModeHelper('assertSubtype'),
-      const TypeVariableCheckedModeHelper('subtypeOfRuntimeTypeCast'),
-      const TypeVariableCheckedModeHelper('assertSubtypeOfRuntimeType'),
-      const FunctionTypeCheckedModeHelper('functionSubtypeCast'),
-      const FunctionTypeCheckedModeHelper('assertFunctionSubtype'),
-      const PropertyCheckedModeHelper('propertyTypeCast'),
-      const PropertyCheckedModeHelper('propertyTypeCheck') ];
+  static const checkedModeHelpers = CheckedModeHelper.helpers;
 
   // Checked mode helpers indexed by name.
   Map<String, CheckedModeHelper> checkedModeHelperByName =
@@ -426,7 +282,7 @@
         super(compiler, JAVA_SCRIPT_CONSTANT_SYSTEM) {
     emitter = new CodeEmitterTask(compiler, namer, generateSourceMap);
     builder = new SsaBuilderTask(this);
-    fromIrBuilder = new SsaFromIrBuilderTask(compiler);
+    fromIrBuilder = new SsaFromIrBuilderTask(this);
     optimizer = new SsaOptimizerTask(this);
     generator = new SsaCodeGeneratorTask(this);
     typeVariableHandler = new TypeVariableHandler(this);
@@ -843,6 +699,11 @@
         enqueueClass(enqueuer, jsPlainJavaScriptObjectClass, elements);
       }
     }
+    if (cls == compiler.closureClass) {
+      enqueue(enqueuer,
+              compiler.findHelper('closureFromTearOff'),
+              elements);
+    }
     ClassElement result = null;
     if (cls == compiler.stringClass || cls == jsStringClass) {
       addInterceptors(jsStringClass, enqueuer, elements);
@@ -1023,6 +884,7 @@
   }
 
   void registerIsCheck(DartType type, Enqueuer world, TreeElements elements) {
+    enqueueInResolution(getThrowRuntimeError(), elements);
     type = type.unalias(compiler);
     enqueueClass(world, compiler.boolClass, elements);
     bool inCheckedMode = compiler.enableTypeAssertions;
@@ -1066,7 +928,8 @@
       enqueueClass(world, compiler.listClass, elements);
     }
     if (type is FunctionType) {
-      enqueueInResolution(getCheckFunctionSubtype(), elements);
+      enqueueInResolution(
+          compiler.findHelper('functionTypeTestMetaHelper'), elements);
     }
     if (type.element.isNative()) {
       // We will neeed to add the "$is" and "$as" properties on the
@@ -1079,6 +942,7 @@
   }
 
   void registerAsCheck(DartType type, Enqueuer world, TreeElements elements) {
+    enqueueInResolution(getThrowRuntimeError(), elements);
     type = type.unalias(compiler);
     if (!world.isResolutionQueue) {
       // All helpers are added to resolution queue in enqueueHelpers. These
@@ -1484,9 +1348,7 @@
               ? 'subtypeOfRuntimeTypeCast'
               : 'assertSubtypeOfRuntimeType';
         } else if (type.kind == TypeKind.FUNCTION) {
-          return typeCast
-              ? 'functionSubtypeCast'
-              : 'assertFunctionSubtype';
+          return null;
         } else {
           if (nativeCheck) {
             // TODO(karlklose): can we get rid of this branch when we use
@@ -1621,10 +1483,6 @@
     return compiler.findHelper('assertSubtypeOfRuntimeType');
   }
 
-  Element getCheckFunctionSubtype() {
-    return compiler.findHelper('checkFunctionSubtype');
-  }
-
   Element getThrowNoSuchMethod() {
     return compiler.findHelper('throwNoSuchMethod');
   }
@@ -1773,6 +1631,8 @@
    * system.
    */
   bool isAccessibleByReflection(Element element) {
+    // TODO(ahe): This isn't sufficient: simply importing dart:mirrors
+    // causes hasInsufficientMirrorsUsed to become true.
     if (hasInsufficientMirrorsUsed) return true;
     return isNeededForReflection(element);
   }
@@ -1945,6 +1805,12 @@
           element, "@NoSideEffects() should always be combined with @NoInline");
     }
   }
+
+  CodeBuffer codeOf(Element element) {
+    return generatedCode.containsKey(element)
+        ? jsAst.prettyPrint(generatedCode[element], compiler)
+        : null;
+  }
 }
 
 /// Records that [constant] is used by [user.element].
diff --git a/sdk/lib/_internal/compiler/implementation/js_backend/checked_mode_helpers.dart b/sdk/lib/_internal/compiler/implementation/js_backend/checked_mode_helpers.dart
new file mode 100644
index 0000000..254f270
--- /dev/null
+++ b/sdk/lib/_internal/compiler/implementation/js_backend/checked_mode_helpers.dart
@@ -0,0 +1,119 @@
+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+part of js_backend;
+
+class CheckedModeHelper {
+  final String name;
+
+  const CheckedModeHelper(String this.name);
+
+  Element getElement(Compiler compiler) => compiler.findHelper(name);
+
+  jsAst.Expression generateCall(SsaCodeGenerator codegen,
+                                HTypeConversion node) {
+    Element helperElement = getElement(codegen.compiler);
+    codegen.world.registerStaticUse(helperElement);
+    List<jsAst.Expression> arguments = <jsAst.Expression>[];
+    codegen.use(node.checkedInput);
+    arguments.add(codegen.pop());
+    generateAdditionalArguments(codegen, node, arguments);
+    String helperName = codegen.backend.namer.isolateAccess(helperElement);
+    return new jsAst.Call(new jsAst.VariableUse(helperName), arguments);
+  }
+
+  void generateAdditionalArguments(SsaCodeGenerator codegen,
+                                   HTypeConversion node,
+                                   List<jsAst.Expression> arguments) {
+    // No additional arguments needed.
+  }
+
+  static const List<CheckedModeHelper> helpers = const <CheckedModeHelper> [
+      const MalformedCheckedModeHelper('checkMalformedType'),
+      const CheckedModeHelper('voidTypeCheck'),
+      const CheckedModeHelper('stringTypeCast'),
+      const CheckedModeHelper('stringTypeCheck'),
+      const CheckedModeHelper('doubleTypeCast'),
+      const CheckedModeHelper('doubleTypeCheck'),
+      const CheckedModeHelper('numTypeCast'),
+      const CheckedModeHelper('numTypeCheck'),
+      const CheckedModeHelper('boolTypeCast'),
+      const CheckedModeHelper('boolTypeCheck'),
+      const CheckedModeHelper('intTypeCast'),
+      const CheckedModeHelper('intTypeCheck'),
+      const PropertyCheckedModeHelper('numberOrStringSuperNativeTypeCast'),
+      const PropertyCheckedModeHelper('numberOrStringSuperNativeTypeCheck'),
+      const PropertyCheckedModeHelper('numberOrStringSuperTypeCast'),
+      const PropertyCheckedModeHelper('numberOrStringSuperTypeCheck'),
+      const PropertyCheckedModeHelper('stringSuperNativeTypeCast'),
+      const PropertyCheckedModeHelper('stringSuperNativeTypeCheck'),
+      const PropertyCheckedModeHelper('stringSuperTypeCast'),
+      const PropertyCheckedModeHelper('stringSuperTypeCheck'),
+      const CheckedModeHelper('listTypeCast'),
+      const CheckedModeHelper('listTypeCheck'),
+      const PropertyCheckedModeHelper('listSuperNativeTypeCast'),
+      const PropertyCheckedModeHelper('listSuperNativeTypeCheck'),
+      const PropertyCheckedModeHelper('listSuperTypeCast'),
+      const PropertyCheckedModeHelper('listSuperTypeCheck'),
+      const PropertyCheckedModeHelper('interceptedTypeCast'),
+      const PropertyCheckedModeHelper('interceptedTypeCheck'),
+      const SubtypeCheckedModeHelper('subtypeCast'),
+      const SubtypeCheckedModeHelper('assertSubtype'),
+      const TypeVariableCheckedModeHelper('subtypeOfRuntimeTypeCast'),
+      const TypeVariableCheckedModeHelper('assertSubtypeOfRuntimeType'),
+      const PropertyCheckedModeHelper('propertyTypeCast'),
+      const PropertyCheckedModeHelper('propertyTypeCheck')];
+}
+
+class MalformedCheckedModeHelper extends CheckedModeHelper {
+  const MalformedCheckedModeHelper(String name) : super(name);
+
+  void generateAdditionalArguments(SsaCodeGenerator codegen,
+                                   HTypeConversion node,
+                                   List<jsAst.Expression> arguments) {
+    ErroneousElement element = node.typeExpression.element;
+    arguments.add(js.string(element.message));
+  }
+}
+
+class PropertyCheckedModeHelper extends CheckedModeHelper {
+  const PropertyCheckedModeHelper(String name) : super(name);
+
+  void generateAdditionalArguments(SsaCodeGenerator codegen,
+                                   HTypeConversion node,
+                                   List<jsAst.Expression> arguments) {
+    DartType type = node.typeExpression;
+    String additionalArgument = codegen.backend.namer.operatorIsType(type);
+    arguments.add(js.string(additionalArgument));
+  }
+}
+
+class TypeVariableCheckedModeHelper extends CheckedModeHelper {
+  const TypeVariableCheckedModeHelper(String name) : super(name);
+
+  void generateAdditionalArguments(SsaCodeGenerator codegen,
+                                   HTypeConversion node,
+                                   List<jsAst.Expression> arguments) {
+    assert(node.typeExpression.kind == TypeKind.TYPE_VARIABLE);
+    codegen.use(node.typeRepresentation);
+    arguments.add(codegen.pop());
+  }
+}
+
+class SubtypeCheckedModeHelper extends CheckedModeHelper {
+  const SubtypeCheckedModeHelper(String name) : super(name);
+
+  void generateAdditionalArguments(SsaCodeGenerator codegen,
+                                   HTypeConversion node,
+                                   List<jsAst.Expression> arguments) {
+    DartType type = node.typeExpression;
+    Element element = type.element;
+    String isField = codegen.backend.namer.operatorIs(element);
+    arguments.add(js.string(isField));
+    codegen.use(node.typeRepresentation);
+    arguments.add(codegen.pop());
+    String asField = codegen.backend.namer.substitutionName(element);
+    arguments.add(js.string(asField));
+  }
+}
diff --git a/sdk/lib/_internal/compiler/implementation/js_backend/js_backend.dart b/sdk/lib/_internal/compiler/implementation/js_backend/js_backend.dart
index 9598af7..6ca4fc7 100644
--- a/sdk/lib/_internal/compiler/implementation/js_backend/js_backend.dart
+++ b/sdk/lib/_internal/compiler/implementation/js_backend/js_backend.dart
@@ -25,6 +25,7 @@
 import '../util/util.dart';
 
 part 'backend.dart';
+part 'checked_mode_helpers.dart';
 part 'constant_emitter.dart';
 part 'constant_system_javascript.dart';
 part 'minify_namer.dart';
diff --git a/sdk/lib/_internal/compiler/implementation/js_backend/namer.dart b/sdk/lib/_internal/compiler/implementation/js_backend/namer.dart
index 25f86da..9b18a37 100644
--- a/sdk/lib/_internal/compiler/implementation/js_backend/namer.dart
+++ b/sdk/lib/_internal/compiler/implementation/js_backend/namer.dart
@@ -369,6 +369,8 @@
   }
 
   String instanceMethodName(FunctionElement element) {
+    // TODO(ahe): Could this be: return invocationName(new
+    // Selector.fromElement(element))?
     String elementName = element.name;
     String name = operatorNameToIdentifier(elementName);
     if (name != elementName) return getMappedOperatorName(name);
@@ -472,6 +474,10 @@
     return getMappedInstanceName(proposedName);
   }
 
+  String readTypeVariableName(TypeVariableElement element) {
+    return '\$tv_${instanceFieldAccessorName(element)}';
+  }
+
   /**
    * Returns name of the JavaScript property used to store an instance field.
    */
@@ -877,7 +883,7 @@
   }
 
   String isolateStaticClosureAccess(Element element) {
-    return "${globalObjectFor(element)}.${getStaticClosureName(element)}";
+    return "${globalObjectFor(element)}.${getStaticClosureName(element)}()";
   }
 
   String globalObjectForConstant(Constant constant) => 'C';
diff --git a/sdk/lib/_internal/compiler/implementation/js_emitter/class_builder.dart b/sdk/lib/_internal/compiler/implementation/js_emitter/class_builder.dart
index 86befd2..53e32d8 100644
--- a/sdk/lib/_internal/compiler/implementation/js_emitter/class_builder.dart
+++ b/sdk/lib/_internal/compiler/implementation/js_emitter/class_builder.dart
@@ -8,9 +8,13 @@
  * A data structure for collecting fragments of a class definition.
  */
 class ClassBuilder {
-  // TODO (sigurdm) this is just a bag of properties, rename this class
-
   final List<jsAst.Property> properties = <jsAst.Property>[];
+  final List<String> fields = <String>[];
+
+  String superName;
+  String nativeName;
+  String functionType;
+  List<jsAst.Node> fieldMetadata;
 
   /// Set to true by user if class is indistinguishable from its superclass.
   bool isTrivial = false;
@@ -20,8 +24,35 @@
     properties.add(new jsAst.Property(js.string(name), value));
   }
 
-  jsAst.Expression toObjectInitializer() {
-    return new jsAst.ObjectInitializer(properties, isOneLiner: false);
+  void addField(String field) {
+    fields.add(field);
+  }
+
+  jsAst.ObjectInitializer toObjectInitializer() {
+    StringBuffer buffer = new StringBuffer();
+    if (superName != null) {
+      if (nativeName != null) {
+        buffer.write('$nativeName/');
+      }
+      buffer.write('$superName');
+      if (functionType != null) {
+        buffer.write(':$functionType');
+      }
+      buffer.write(';');
+    }
+    buffer.writeAll(fields, ',');
+    var classData = js.string('$buffer');
+    if (fieldMetadata != null) {
+      // If we need to store fieldMetadata, classData is turned into an array,
+      // and the field metadata is appended. So if classData is just a string,
+      // there is no field metadata.
+      classData =
+          new jsAst.ArrayInitializer.from([classData]..addAll(fieldMetadata));
+    }
+    var fieldsAndProperties =
+        [new jsAst.Property(js.string(''), classData)]
+        ..addAll(properties);
+    return new jsAst.ObjectInitializer(fieldsAndProperties, isOneLiner: false);
   }
 
 }
diff --git a/sdk/lib/_internal/compiler/implementation/js_emitter/class_emitter.dart b/sdk/lib/_internal/compiler/implementation/js_emitter/class_emitter.dart
index 97caf52..9d9a89b 100644
--- a/sdk/lib/_internal/compiler/implementation/js_emitter/class_emitter.dart
+++ b/sdk/lib/_internal/compiler/implementation/js_emitter/class_emitter.dart
@@ -47,6 +47,8 @@
       additionalProperties.forEach(builder.addProperty);
     }
 
+    emitTypeVariableReaders(classElement, builder);
+
     emitClassBuilderWithReflectionData(
         className, classElement, builder, properties);
   }
@@ -106,7 +108,6 @@
       throw new SpannableAssertionFailure(
           element, 'Must be a ClassElement or a LibraryElement');
     }
-    StringBuffer buffer = new StringBuffer();
     if (emitStatics) {
       assert(invariant(element, superName == null, message: superName));
     } else {
@@ -114,16 +115,13 @@
       String nativeName =
           namer.getPrimitiveInterceptorRuntimeName(element);
       if (nativeName != null) {
-        buffer.write('$nativeName/');
+        builder.nativeName = nativeName;
       }
-      buffer.write('$superName;');
+      builder.superName = superName;
     }
-    int bufferClassLength = buffer.length;
-
-    String separator = '';
-
     var fieldMetadata = [];
     bool hasMetadata = false;
+    bool fieldsAdded = false;
 
     if (!onlyForRti) {
       visitFields(element, emitStatics,
@@ -140,8 +138,6 @@
         // constructors, so we don't need the fields unless we are generating
         // accessors at runtime.
         if (!classIsNative || needsAccessor) {
-          buffer.write(separator);
-          separator = ',';
           var metadata = task.metadataEmitter.buildMetadataFunction(field);
           if (metadata != null) {
             hasMetadata = true;
@@ -150,16 +146,17 @@
           }
           fieldMetadata.add(metadata);
           recordMangledField(field, accessorName, field.name);
+          String fieldName = name;
+          String fieldCode = '';
+          String reflectionMarker = '';
           if (!needsAccessor) {
             // Emit field for constructor generation.
             assert(!classIsNative);
-            buffer.write(name);
           } else {
             // Emit (possibly renaming) field name so we can add accessors at
             // runtime.
-            buffer.write(accessorName);
             if (name != accessorName) {
-              buffer.write(':$name');
+              fieldName = '$accessorName:$name';
             }
 
             int getterCode = 0;
@@ -206,28 +203,25 @@
               compiler.reportInternalError(
                   field, 'Internal error: code is 0 ($element/$field)');
             } else {
-              buffer.write(FIELD_CODE_CHARACTERS[code - FIRST_FIELD_CODE]);
+              fieldCode = FIELD_CODE_CHARACTERS[code - FIRST_FIELD_CODE];
             }
           }
           if (backend.isAccessibleByReflection(field)) {
-            buffer.write('-');
+            reflectionMarker = '-';
             if (backend.isNeededForReflection(field)) {
               DartType type = field.computeType(compiler);
-              buffer.write('${task.metadataEmitter.reifyType(type)}');
+              reflectionMarker = '-${task.metadataEmitter.reifyType(type)}';
             }
           }
+          builder.addField('$fieldName$fieldCode$reflectionMarker');
+          fieldsAdded = true;
         }
       });
     }
 
-    bool fieldsAdded = buffer.length > bufferClassLength;
-    String compactClassData = buffer.toString();
-    jsAst.Expression classDataNode = js.string(compactClassData);
     if (hasMetadata) {
-      fieldMetadata.insert(0, classDataNode);
-      classDataNode = new jsAst.ArrayInitializer.from(fieldMetadata);
+      builder.fieldMetadata = fieldMetadata;
     }
-    builder.addProperty('', classDataNode);
     return fieldsAdded;
   }
 
@@ -319,7 +313,7 @@
     List<jsAst.Property> statics = new List<jsAst.Property>();
     ClassBuilder staticsBuilder = new ClassBuilder();
     if (emitFields(classElement, staticsBuilder, null, emitStatics: true)) {
-      statics.add(staticsBuilder.properties.single);
+      statics.add(staticsBuilder.toObjectInitializer().properties.single);
     }
 
     Map<String, ClassBuilder> classPropertyLists =
@@ -563,4 +557,45 @@
       builder.addProperty('+$reflectionName', reflectable);
     }
   }
+
+  void emitTypeVariableReaders(ClassElement cls, ClassBuilder builder) {
+    List typeVariables = [];
+    ClassElement superclass = cls;
+    while (superclass != null) {
+      for (TypeVariableType parameter in superclass.typeVariables) {
+        if (task.readTypeVariables.contains(parameter.element)) {
+          emitTypeVariableReader(cls, builder, parameter.element);
+        }
+      }
+      superclass = superclass.superclass;
+    }
+  }
+
+  void emitTypeVariableReader(ClassElement cls,
+                              ClassBuilder builder,
+                              TypeVariableElement element) {
+    String name = namer.readTypeVariableName(element);
+    jsAst.Expression index =
+        js.toExpression(RuntimeTypes.getTypeVariableIndex(element));
+    jsAst.Expression computeTypeVariable;
+
+    Substitution substitution =
+        backend.rti.computeSubstitution(
+            cls, element.enclosingElement, alwaysGenerateFunction: true);
+    if (substitution != null) {
+      jsAst.Expression typeArguments =
+          substitution.getCode(backend.rti, true)['apply'](
+              ['null', r'this.$builtinTypeInfo']);
+      computeTypeVariable = typeArguments[index];
+    } else {
+      // TODO(ahe): These can be generated dynamically.
+      computeTypeVariable =
+          js(r'this.$builtinTypeInfo && this.$builtinTypeInfo[#]', index);
+    }
+    jsAst.Expression convertRtiToRuntimeType =
+        namer.elementAccess(compiler.findHelper('convertRtiToRuntimeType'));
+    builder.addProperty(
+        name, js.fun(
+            [], [js.return_(convertRtiToRuntimeType(computeTypeVariable))]));
+  }
 }
diff --git a/sdk/lib/_internal/compiler/implementation/js_emitter/closure_invocation_element.dart b/sdk/lib/_internal/compiler/implementation/js_emitter/closure_invocation_element.dart
deleted file mode 100644
index 0b891d0..0000000
--- a/sdk/lib/_internal/compiler/implementation/js_emitter/closure_invocation_element.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-part of dart2js.js_emitter;
-
-/**
- * A function element that represents a closure call. The signature is copied
- * from the given element.
- */
-class ClosureInvocationElement extends FunctionElementX {
-  ClosureInvocationElement(String name,
-                           FunctionElement other)
-      : super.from(name, other, other.enclosingElement),
-        methodElement = other;
-
-  isInstanceMember() => true;
-
-  Element getOutermostEnclosingMemberOrTopLevel() => methodElement;
-
-  /**
-   * The [member] this invocation refers to.
-   */
-  Element methodElement;
-}
diff --git a/sdk/lib/_internal/compiler/implementation/js_emitter/code_emitter_task.dart b/sdk/lib/_internal/compiler/implementation/js_emitter/code_emitter_task.dart
index ac52424..835a673 100644
--- a/sdk/lib/_internal/compiler/implementation/js_emitter/code_emitter_task.dart
+++ b/sdk/lib/_internal/compiler/implementation/js_emitter/code_emitter_task.dart
@@ -42,6 +42,10 @@
   final Map<ClassElement, Map<String, jsAst.Expression>> additionalProperties =
       new Map<ClassElement, Map<String, jsAst.Expression>>();
 
+  /// Records if a type variable is read dynamically for type tests.
+  final Set<TypeVariableElement> readTypeVariables =
+      new Set<TypeVariableElement>();
+
   // TODO(ngeoffray): remove this field.
   Set<ClassElement> instantiatedClasses;
 
@@ -349,6 +353,16 @@
           js('var s = fields.split(";")'),
           js('fields = s[1] == "" ? [] : s[1].split(",")'),
           js('supr = s[0]'),
+          js('split = supr.split(":")'),
+          js.if_('split.length == 2', [
+            js('supr = split[0]'),
+            js('var functionSignature = split[1]'),
+            js.if_('functionSignature',
+                js('desc.\$signature = #',
+                   js.fun('s',
+                       js.return_(js.fun([], js.return_('init.metadata[s]'))))(
+                           js('functionSignature'))))
+          ]),
 
           optional(needsMixinSupport, js.if_('supr && supr.indexOf("+") > 0', [
             js('s = supr.split("+")'),
@@ -744,8 +758,10 @@
   }
 
   void generateClass(ClassElement classElement, ClassBuilder properties) {
-    classEmitter.generateClass(
-        classElement, properties, additionalProperties[classElement]);
+    compiler.withCurrentElement(classElement, () {
+      classEmitter.generateClass(
+          classElement, properties, additionalProperties[classElement]);
+    });
   }
 
   /**
@@ -1163,6 +1179,7 @@
 
       jsAst.ObjectInitializer initializers =
           descriptor.toObjectInitializer();
+      int sizeBefore = outputBuffers[outputUnit].length;
       outputBuffers[outputUnit]
           ..write('["${library.getLibraryName()}",$_')
           ..write('"${uri}",$_')
@@ -1174,6 +1191,9 @@
           ..write(jsAst.prettyPrint(initializers, compiler))
           ..write(library == compiler.mainApp ? ',${n}1' : "")
           ..write('],$n');
+      int sizeAfter = outputBuffers[outputUnit].length;
+      compiler.dumpInfoTask.codeSizeCounter
+          .countCode(library, sizeAfter - sizeBefore);
     }
   }
 
@@ -1192,6 +1212,9 @@
         mainBuffer.add('(function(${namer.currentIsolate})$_{$n');
       }
 
+      // Using a named function here produces easier to read stack traces in
+      // Chrome/V8.
+      mainBuffer.add('function dart() {}');
       for (String globalObject in Namer.reservedGlobalObjectNames) {
         // The global objects start as so-called "slow objects". For V8, this
         // means that it won't try to make map transitions as we add properties
@@ -1199,7 +1222,7 @@
         // fast objects by calling "convertToFastObject" (see
         // [emitConvertToFastObjectFunction]).
         mainBuffer
-            ..write('var ${globalObject}$_=$_{}$N')
+            ..write('var ${globalObject}$_=${_}new dart$N')
             ..write('delete ${globalObject}.x$N');
       }
 
@@ -1246,26 +1269,12 @@
       nativeEmitter.finishGenerateNativeClasses();
       nativeEmitter.assembleCode(nativeBuffer);
 
-      // Might create methodClosures.
       if (!deferredClasses.isEmpty) {
         for (ClassElement element in deferredClasses) {
           generateClass(element, getElementDecriptor(element));
         }
       }
 
-      containerBuilder.emitStaticFunctionClosures();
-
-      addComment('Method closures', mainBuffer);
-      // Now that we have emitted all classes, we know all the method
-      // closures that will be needed.
-      containerBuilder.methodClosures.forEach((String code, Element closure) {
-        // TODO(ahe): Some of these can be deferred.
-        String mangledName = namer.getNameOfClass(closure);
-        mainBuffer.add('$classesCollector.$mangledName$_=$_'
-             '[${namer.globalObjectFor(closure)},$_$code]');
-        mainBuffer.add("$N$n");
-      });
-
       // After this assignment we will produce invalid JavaScript code if we use
       // the classesCollector variable.
       classesCollector = 'classesCollector should not be used from now on';
@@ -1286,7 +1295,7 @@
             if (classEmitter.emitFields(
                     library, builder, null, emitStatics: true)) {
               getElementDescriptorForOutputUnit(library, "main")
-                  .properties.addAll(builder.properties);
+                  .properties.addAll(builder.toObjectInitializer().properties);
             }
           }
         }
@@ -1325,7 +1334,7 @@
           }
         }
         mainBuffer
-            ..write(getReflectionDataParser(classesCollector, namer))
+            ..write(getReflectionDataParser(classesCollector, backend))
             ..write('([$n');
 
         List<Element> sortedElements =
@@ -1355,8 +1364,6 @@
         classesCollector = oldClassesCollector;
       }
 
-      containerBuilder.emitStaticFunctionGetters(mainBuffer);
-
       typeTestEmitter.emitRuntimeTypeSupport(mainBuffer);
       interceptorEmitter.emitGetInterceptorMethods(mainBuffer);
       interceptorEmitter.emitOneShotInterceptors(mainBuffer);
@@ -1531,7 +1538,7 @@
                 '$_${namer.isolateName}.prototype$N$n'
                 // The classesCollector object ($$).
                 '$classesCollector$_=$_{};$n')
-        ..write(getReflectionDataParser(classesCollector, namer))
+        ..write(getReflectionDataParser(classesCollector, backend))
         ..write('([$n')
         ..addBuffer(deferredLibrariesBuffer)
         ..write('])$N');
@@ -1592,4 +1599,8 @@
   bool get areAnyElementsDeferred {
     return compiler.deferredLoadTask.areAnyElementsDeferred;
   }
+
+  void registerReadTypeVariable(TypeVariableElement element) {
+    readTypeVariables.add(element);
+  }
 }
diff --git a/sdk/lib/_internal/compiler/implementation/js_emitter/container_builder.dart b/sdk/lib/_internal/compiler/implementation/js_emitter/container_builder.dart
index 276d339..f55026a 100644
--- a/sdk/lib/_internal/compiler/implementation/js_emitter/container_builder.dart
+++ b/sdk/lib/_internal/compiler/implementation/js_emitter/container_builder.dart
@@ -25,7 +25,7 @@
    */
   void addParameterStub(FunctionElement member,
                         Selector selector,
-                        DefineStubFunction defineStub,
+                        AddStubFunction addStub,
                         Set<String> alreadyGenerated) {
     FunctionSignature parameters = member.computeSignature(compiler);
     int positionalArgumentCount = selector.positionalArgumentCount;
@@ -81,10 +81,7 @@
 
     int parameterIndex = 0;
     parameters.orderedForEachParameter((Element element) {
-      // Use generic names for closures to facilitate code sharing.
-      String jsName = member is ClosureInvocationElement
-          ? 'p${parameterIndex++}'
-          : backend.namer.safeName(element.name);
+      String jsName = backend.namer.safeName(element.name);
       assert(jsName != receiverArgumentName);
       if (count < optionalParameterStart) {
         parametersBuffer[count] = new jsAst.Parameter(jsName);
@@ -121,25 +118,30 @@
           member, isInterceptedMethod, invocationName,
           parametersBuffer, argumentsBuffer,
           indexOfLastOptionalArgumentInParameters);
-    } else {
+    } else if (member.isInstanceMember()) {
       body = [js.return_(
           js('this')[namer.getNameOfInstanceMember(member)](argumentsBuffer))];
+    } else {
+      body = [js.return_(namer.elementAccess(member)(argumentsBuffer))];
     }
 
     jsAst.Fun function = js.fun(parametersBuffer, body);
 
-    defineStub(invocationName, function);
-
-    String reflectionName = task.getReflectionName(selector, invocationName);
-    if (reflectionName != null) {
-      var reflectable =
-          js(backend.isAccessibleByReflection(member) ? '1' : '0');
-      defineStub('+$reflectionName', reflectable);
-    }
+    addStub(selector, function);
   }
 
-  void addParameterStubs(FunctionElement member,
-                         DefineStubFunction defineStub) {
+  void addParameterStubs(FunctionElement member, AddStubFunction defineStub,
+                         [bool canTearOff = false]) {
+    if (member.enclosingElement.isClosure()) {
+      ClosureClassElement cls = member.enclosingElement;
+      if (cls.supertype.element == compiler.boundClosureClass) {
+        compiler.internalErrorOnElement(cls.methodElement, 'Bound closure1.');
+      }
+      if (cls.methodElement.isInstanceMember()) {
+        compiler.internalErrorOnElement(cls.methodElement, 'Bound closure2.');
+      }
+    }
+
     // We fill the lists depending on the selector. For example,
     // take method foo:
     //    foo(a, b, {c, d});
@@ -165,340 +167,57 @@
     // (4) No stub generated, call is direct.
     // (5) No stub generated, call is direct.
 
-    // Keep a cache of which stubs have already been generated, to
-    // avoid duplicates. Note that even if selectors are
-    // canonicalized, we would still need this cache: a typed selector
-    // on A and a typed selector on B could yield the same stub.
-    Set<String> generatedStubNames = new Set<String>();
-    bool isClosureInvocation =
-        member.name == namer.closureInvocationSelectorName;
-    if (backend.isNeededForReflection(member) ||
-        (compiler.enabledFunctionApply && isClosureInvocation)) {
-      // If [Function.apply] is called, we pessimistically compile all
-      // possible stubs for this closure.
-      FunctionSignature signature = member.computeSignature(compiler);
-      Set<Selector> selectors = signature.optionalParametersAreNamed
-          ? computeSeenNamedSelectors(member)
-          : computeOptionalSelectors(signature, member);
-      for (Selector selector in selectors) {
-        addParameterStub(member, selector, defineStub, generatedStubNames);
-      }
-      if (signature.optionalParametersAreNamed && isClosureInvocation) {
-        addCatchAllParameterStub(member, signature, defineStub);
-      }
-    } else {
-      Set<Selector> selectors = compiler.codegenWorld.invokedNames[member.name];
+    Set<Selector> selectors = member.isInstanceMember()
+        ? compiler.codegenWorld.invokedNames[member.name]
+        : null; // No stubs needed for static methods.
+
+    /// Returns all closure call selectors renamed to match this member.
+    Set<Selector> callSelectorsAsNamed() {
+      if (!canTearOff) return null;
+      Set<Selector> callSelectors = compiler.codegenWorld.invokedNames[
+          namer.closureInvocationSelectorName];
+      if (callSelectors == null) return null;
+      return callSelectors.map((Selector callSelector) {
+        return new Selector.call(
+            member.name, member.getLibrary(),
+            callSelector.argumentCount, callSelector.namedArguments);
+      }).toSet();
+    }
+    if (selectors == null) {
+      selectors = callSelectorsAsNamed();
       if (selectors == null) return;
-      for (Selector selector in selectors) {
-        if (!selector.applies(member, compiler)) continue;
-        addParameterStub(member, selector, defineStub, generatedStubNames);
-      }
-    }
-  }
-
-  Set<Selector> computeSeenNamedSelectors(FunctionElement element) {
-    Set<Selector> selectors = compiler.codegenWorld.invokedNames[element.name];
-    Set<Selector> result = new Set<Selector>();
-    if (selectors == null) return result;
-    for (Selector selector in selectors) {
-      if (!selector.applies(element, compiler)) continue;
-      result.add(selector);
-    }
-    return result;
-  }
-
-  void addCatchAllParameterStub(FunctionElement member,
-                                FunctionSignature signature,
-                                DefineStubFunction defineStub) {
-    // See Primities.applyFunction in js_helper.dart for details.
-    List<jsAst.Property> properties = <jsAst.Property>[];
-    for (Element element in signature.orderedOptionalParameters) {
-      String jsName = backend.namer.safeName(element.name);
-      Constant value = compiler.constantHandler.initialVariableValues[element];
-      jsAst.Expression reference = null;
-      if (value == null) {
-        reference = new jsAst.LiteralNull();
-      } else {
-        reference = task.constantReference(value);
-      }
-      properties.add(new jsAst.Property(js.string(jsName), reference));
-    }
-    defineStub(
-        backend.namer.callCatchAllName,
-        js.fun([], js.return_(new jsAst.ObjectInitializer(properties))));
-  }
-
-  /**
-   * Compute the set of possible selectors in the presence of optional
-   * non-named parameters.
-   */
-  Set<Selector> computeOptionalSelectors(FunctionSignature signature,
-                                         FunctionElement element) {
-    Set<Selector> selectors = new Set<Selector>();
-    // Add the selector that does not have any optional argument.
-    selectors.add(new Selector(SelectorKind.CALL,
-                               element.name,
-                               element.getLibrary(),
-                               signature.requiredParameterCount,
-                               <String>[]));
-
-    // For each optional parameter, we increment the number of passed
-    // argument.
-    for (int i = 1; i <= signature.optionalParameterCount; i++) {
-      selectors.add(new Selector(SelectorKind.CALL,
-                                 element.name,
-                                 element.getLibrary(),
-                                 signature.requiredParameterCount + i,
-                                 <String>[]));
-    }
-    return selectors;
-  }
-
-  void emitStaticFunctionGetters(CodeBuffer eagerBuffer) {
-    task.addComment('Static function getters', task.mainBuffer);
-    for (FunctionElement element in
-             Elements.sortedByPosition(staticGetters.keys)) {
-      Element closure = staticGetters[element];
-      CodeBuffer buffer =
-          task.isDeferred(element) ? task.deferredConstants : eagerBuffer;
-      String closureClass = namer.isolateAccess(closure);
-      String name = namer.getStaticClosureName(element);
-
-      String closureName = namer.getStaticClosureName(element);
-      jsAst.Node assignment = js(
-          'init.globalFunctions["$closureName"] ='
-          ' ${namer.globalObjectFor(element)}.$name ='
-          ' new $closureClass(#, "$closureName")',
-          namer.elementAccess(element));
-      buffer.write(jsAst.prettyPrint(assignment, compiler));
-      buffer.write('$N');
-    }
-  }
-
-  void emitStaticFunctionClosures() {
-    Set<FunctionElement> functionsNeedingGetter =
-        compiler.codegenWorld.staticFunctionsNeedingGetter;
-    for (FunctionElement element in
-             Elements.sortedByPosition(functionsNeedingGetter)) {
-      String superName = namer.getNameOfClass(compiler.closureClass);
-      int parameterCount = element.functionSignature.parameterCount;
-      String name = 'Closure\$$parameterCount';
-      assert(task.instantiatedClasses.contains(compiler.closureClass));
-
-      ClassElement closureClassElement = new ClosureClassElement(
-          null, name, compiler, element,
-          element.getCompilationUnit());
-      // Now add the methods on the closure class. The instance method does not
-      // have the correct name. Since [addParameterStubs] use the name to create
-      // its stubs we simply create a fake element with the correct name.
-      // Note: the callElement will not have any enclosingElement.
-      FunctionElement callElement =
-          new ClosureInvocationElement(namer.closureInvocationSelectorName,
-                                       element);
-
-      String invocationName = namer.instanceMethodName(callElement);
-      String mangledName = namer.getNameOfClass(closureClassElement);
-
-      // Define the constructor with a name so that Object.toString can
-      // find the class name of the closure class.
-      ClassBuilder closureBuilder = new ClassBuilder();
-      // If a static function is used as a closure we need to add its name
-      // in case it is used in spawnFunction.
-      String methodName = namer.STATIC_CLOSURE_NAME_NAME;
-      List<String> fieldNames = <String>[invocationName, methodName];
-      closureBuilder.addProperty('',
-          js.string("$superName;${fieldNames.join(',')}"));
-
-      addParameterStubs(callElement, closureBuilder.addProperty);
-
-      void emitFunctionTypeSignature(Element method, FunctionType methodType) {
-        RuntimeTypes rti = backend.rti;
-        // [:() => null:] is dummy encoding of [this] which is never needed for
-        // the encoding of the type of the static [method].
-        jsAst.Expression encoding =
-            rti.getSignatureEncoding(methodType, js('null'));
-        String operatorSignature = namer.operatorSignature();
-        // TODO(johnniwinther): Make MiniJsParser support function expressions.
-        closureBuilder.addProperty(operatorSignature, encoding);
-      }
-
-      void emitIsFunctionTypeTest(FunctionType functionType) {
-        String operator = namer.operatorIsType(functionType);
-        closureBuilder.addProperty(operator, js('true'));
-      }
-
-      FunctionType methodType = element.computeType(compiler);
-      Map<FunctionType, bool> functionTypeChecks =
-          task.typeTestEmitter.getFunctionTypeChecksOn(methodType);
-      task.typeTestEmitter.generateFunctionTypeTests(
-          element, methodType, functionTypeChecks,
-          emitFunctionTypeSignature, emitIsFunctionTypeTest);
-
-      closureClassElement =
-          addClosureIfNew(closureBuilder, closureClassElement, fieldNames);
-      staticGetters[element] = closureClassElement;
-
-    }
-  }
-
-  ClassElement addClosureIfNew(ClassBuilder builder,
-                               ClassElement closure,
-                               List<String> fieldNames) {
-    String key =
-        jsAst.prettyPrint(builder.toObjectInitializer(), compiler).getText();
-    return methodClosures.putIfAbsent(key, () {
-      String mangledName = namer.getNameOfClass(closure);
-      emitClosureInPrecompiledFunction(mangledName, fieldNames);
-      return closure;
-    });
-  }
-
-  void emitClosureInPrecompiledFunction(String mangledName,
-                                        List<String> fieldNames) {
-    List<String> fields = fieldNames;
-    String constructorName = mangledName;
-    task.precompiledFunction.add(new jsAst.FunctionDeclaration(
-        new jsAst.VariableDeclaration(constructorName),
-        js.fun(fields, fields.map(
-            (name) => js('this.$name = $name')).toList())));
-    task.precompiledFunction.addAll([
-        js('$constructorName.builtin\$cls = "$constructorName"'),
-        js('\$desc=\$collectedClasses.$constructorName'),
-        js.if_('\$desc instanceof Array', js('\$desc = \$desc[1]')),
-        js('$constructorName.prototype = \$desc'),
-    ]);
-
-    task.precompiledConstructorNames.add(js(constructorName));
-  }
-
-  /**
-   * Documentation wanted -- johnniwinther
-   *
-   * Invariant: [member] must be a declaration element.
-   */
-  void emitDynamicFunctionGetter(FunctionElement member,
-                                 DefineStubFunction defineStub) {
-    assert(invariant(member, member.isDeclaration));
-    assert(task.instantiatedClasses.contains(compiler.boundClosureClass));
-    // For every method that has the same name as a property-get we create a
-    // getter that returns a bound closure. Say we have a class 'A' with method
-    // 'foo' and somewhere in the code there is a dynamic property get of
-    // 'foo'. Then we generate the following code (in pseudo Dart/JavaScript):
-    //
-    // class A {
-    //    foo(x, y, z) { ... } // Original function.
-    //    get foo { return new BoundClosure499(this, "foo"); }
-    // }
-    // class BoundClosure499 extends BoundClosure {
-    //   BoundClosure499(this.self, this.name);
-    //   $call3(x, y, z) { return self[name](x, y, z); }
-    // }
-
-    bool hasOptionalParameters = member.optionalParameterCount(compiler) != 0;
-    int parameterCount = member.parameterCount(compiler);
-
-    // Intercepted methods take an extra parameter, which is the
-    // receiver of the call.
-    bool inInterceptor = backend.isInterceptedMethod(member);
-    List<String> fieldNames = <String>[];
-    compiler.boundClosureClass.forEachInstanceField((_, Element field) {
-      fieldNames.add(namer.instanceFieldPropertyName(field));
-    });
-
-    ClassElement classElement = member.getEnclosingClass();
-    String name = inInterceptor
-        ? 'BoundClosure\$i${parameterCount}'
-        : 'BoundClosure\$${parameterCount}';
-
-    ClassElement closureClassElement = new ClosureClassElement(
-        null, name, compiler, member,
-        member.getCompilationUnit());
-    String superName = namer.getNameOfClass(closureClassElement.superclass);
-
-    // Define the constructor with a name so that Object.toString can
-    // find the class name of the closure class.
-    ClassBuilder boundClosureBuilder = new ClassBuilder();
-    boundClosureBuilder.addProperty('',
-        js.string("$superName;${fieldNames.join(',')}"));
-    // Now add the methods on the closure class. The instance method does not
-    // have the correct name. Since [addParameterStubs] use the name to create
-    // its stubs we simply create a fake element with the correct name.
-    // Note: the callElement will not have any enclosingElement.
-    FunctionElement callElement = new ClosureInvocationElement(
-        namer.closureInvocationSelectorName, member);
-
-    String invocationName = namer.instanceMethodName(callElement);
-
-    List<String> parameters = <String>[];
-    List<jsAst.Expression> arguments =
-        <jsAst.Expression>[js('this')[fieldNames[0]]];
-    if (inInterceptor) {
-      arguments.add(js('this')[fieldNames[2]]);
-    }
-    for (int i = 0; i < parameterCount; i++) {
-      String name = 'p$i';
-      parameters.add(name);
-      arguments.add(js(name));
-    }
-
-    jsAst.Expression fun = js.fun(
-        parameters,
-        js.return_(
-            js('this')[fieldNames[1]]['call'](arguments)));
-    boundClosureBuilder.addProperty(invocationName, fun);
-
-    addParameterStubs(callElement, boundClosureBuilder.addProperty);
-
-    void emitFunctionTypeSignature(Element method, FunctionType methodType) {
-      jsAst.Expression encoding = backend.rti.getSignatureEncoding(
-          methodType, js('this')[fieldNames[0]]);
-      String operatorSignature = namer.operatorSignature();
-      boundClosureBuilder.addProperty(operatorSignature, encoding);
-    }
-
-    void emitIsFunctionTypeTest(FunctionType functionType) {
-      String operator = namer.operatorIsType(functionType);
-      boundClosureBuilder.addProperty(operator,
-          new jsAst.LiteralBool(true));
-    }
-
-    DartType memberType = member.computeType(compiler);
-    Map<FunctionType, bool> functionTypeChecks =
-        task.typeTestEmitter.getFunctionTypeChecksOn(memberType);
-
-    task.typeTestEmitter.generateFunctionTypeTests(
-        member, memberType, functionTypeChecks,
-        emitFunctionTypeSignature, emitIsFunctionTypeTest);
-
-    closureClassElement =
-        addClosureIfNew(boundClosureBuilder, closureClassElement, fieldNames);
-
-    String closureClass = namer.isolateAccess(closureClassElement);
-
-    // And finally the getter.
-    String getterName = namer.getterName(member);
-    String targetName = namer.instanceMethodName(member);
-
-    parameters = <String>[];
-    jsAst.PropertyAccess method =
-        backend.namer.elementAccess(classElement)['prototype'][targetName];
-    arguments = <jsAst.Expression>[js('this'), method];
-
-    if (inInterceptor) {
-      String receiverArg = fieldNames[2];
-      parameters.add(receiverArg);
-      arguments.add(js(receiverArg));
     } else {
-      // Put null in the intercepted receiver field.
-      arguments.add(new jsAst.LiteralNull());
+      Set<Selector> callSelectors = callSelectorsAsNamed();
+      if (callSelectors != null) {
+        selectors = selectors.union(callSelectors);
+      }
     }
-
-    arguments.add(js.string(targetName));
-
-    jsAst.Expression getterFunction = js.fun(
-        parameters, js.return_(js(closureClass).newWith(arguments)));
-
-    defineStub(getterName, getterFunction);
+    Set<Selector> untypedSelectors = new Set<Selector>();
+    if (selectors != null) {
+      for (Selector selector in selectors) {
+        if (!selector.appliesUnnamed(member, compiler)) continue;
+        if (untypedSelectors.add(selector.asUntyped)) {
+          // TODO(ahe): Is the last argument to [addParameterStub] needed?
+          addParameterStub(member, selector, defineStub, new Set<String>());
+        }
+      }
+    }
+    if (canTearOff) {
+      selectors = compiler.codegenWorld.invokedNames[
+          namer.closureInvocationSelectorName];
+      if (selectors != null) {
+        for (Selector selector in selectors) {
+          selector = new Selector.call(
+              member.name, member.getLibrary(),
+              selector.argumentCount, selector.namedArguments);
+          if (!selector.appliesUnnamed(member, compiler)) continue;
+          if (untypedSelectors.add(selector)) {
+            // TODO(ahe): Is the last argument to [addParameterStub] needed?
+            addParameterStub(member, selector, defineStub, new Set<String>());
+          }
+        }
+      }
+    }
   }
 
   /**
@@ -508,7 +227,7 @@
    */
   void emitCallStubForGetter(Element member,
                              Set<Selector> selectors,
-                             DefineStubFunction defineStub) {
+                             AddPropertyFunction addProperty) {
     assert(invariant(member, member.isDeclaration));
     LibraryElement memberLibrary = member.getLibrary();
     // If the method is intercepted, the stub gets the
@@ -560,7 +279,7 @@
             parameters,
             js.return_(buildGetter()[closureCallName](arguments)));
 
-        defineStub(invocationName, function);
+        addProperty(invocationName, function);
       }
     }
   }
@@ -577,10 +296,6 @@
       if (selectors != null && !selectors.isEmpty) {
         emitCallStubForGetter(member, selectors, builder.addProperty);
       }
-    } else if (member.isFunction()) {
-      if (compiler.codegenWorld.hasInvokedGetter(member, compiler)) {
-        emitDynamicFunctionGetter(member, builder.addProperty);
-      }
     }
   }
 
@@ -606,30 +321,189 @@
     jsAst.Expression code = backend.generatedCode[member];
     if (code == null) return;
     String name = namer.getNameOfMember(member);
-    if (backend.isInterceptedMethod(member)) {
-      task.interceptorEmitter.interceptorInvocationNames.add(name);
-    }
-    code = task.metadataEmitter.extendWithMetadata(member, code);
-    builder.addProperty(name, code);
-    String reflectionName = task.getReflectionName(member, name);
-    if (reflectionName != null) {
-      var reflectable =
-          js(backend.isAccessibleByReflection(member) ? '1' : '0');
-      builder.addProperty('+$reflectionName', reflectable);
-      jsAst.Node defaultValues =
-          task.metadataEmitter.reifyDefaultArguments(member);
-      if (defaultValues != null) {
-        String unmangledName = member.name;
-        builder.addProperty('*$unmangledName', defaultValues);
+    task.interceptorEmitter.recordMangledNameOfMemberMethod(member, name);
+    FunctionSignature parameters = member.computeSignature(compiler);
+    bool needsStubs = !parameters.optionalParameters.isEmpty;
+    bool canTearOff = false;
+    bool isClosure = false;
+    bool canBeApplied = compiler.enabledFunctionApply;
+    String tearOffName;
+    if (!member.isFunction() || member.isConstructor() || member.isAccessor()) {
+      canTearOff = false;
+      canBeApplied = false;
+    } else if (member.isInstanceMember()) {
+      if (member.getEnclosingClass().isClosure()) {
+        canTearOff = false;
+        isClosure = true;
+      } else {
+        // Careful with operators.
+        canTearOff = compiler.codegenWorld.hasInvokedGetter(member, compiler);
+        tearOffName = namer.getterName(member);
       }
+    } else {
+      canTearOff =
+          compiler.codegenWorld.staticFunctionsNeedingGetter.contains(member);
+      tearOffName = namer.getStaticClosureName(member);
     }
-    if (member.isInstanceMember()) {
-      // TODO(ahe): Where is this done for static/top-level methods?
-      FunctionSignature parameters = member.computeSignature(compiler);
-      if (!parameters.optionalParameters.isEmpty) {
-        addParameterStubs(member, builder.addProperty);
+
+    bool canBeReflected = backend.isAccessibleByReflection(member);
+    bool needStructuredInfo =
+        canTearOff || canBeReflected || canBeApplied;
+    if (!needStructuredInfo) {
+      builder.addProperty(name, code);
+      if (needsStubs) {
+        addParameterStubs(
+            member,
+            (Selector selector, jsAst.Fun function) {
+              builder.addProperty(namer.invocationName(selector), function);
+            });
       }
+      return;
     }
+
+    if (canTearOff) {
+      assert(invariant(member, !member.isGenerativeConstructor()));
+      assert(invariant(member, !member.isGenerativeConstructorBody()));
+      assert(invariant(member, !member.isConstructor()));
+    }
+
+    // This element is needed for reflection or needs additional stubs. So we
+    // need to retain additional information.
+
+    // The information is stored in an array with this format:
+    //
+    // 1.   The JS function for this member.
+    // 2.   First stub.
+    // 3.   Name of first stub.
+    // ...
+    // M.   Call name of this member.
+    // M+1. Call name of first stub.
+    // ...
+    // N.   Getter name for tearOff.
+    // N+1. (Required parameter count << 1) + (member.isAccessor() ? 1 : 0).
+    // N+2. (Optional parameter count << 1) +
+    //                      (parameters.optionalParametersAreNamed ? 1 : 0).
+    // N+3. Index to function type in constant pool.
+    // N+4. First default argument.
+    // ...
+    // O.   First parameter name (if needed for reflection or Function.apply).
+    // ...
+    // P.   Unmangled name (if reflectable).
+    // P+1. First metadata (if reflectable).
+    // ...
+
+    List expressions = [];
+
+    String callSelectorString = 'null';
+    if (member.isFunction()) {
+      Selector callSelector =
+          new Selector.fromElement(member, compiler).toCallSelector();
+      callSelectorString = '"${namer.invocationName(callSelector)}"';
+    }
+
+    // On [requiredParameterCount], the lower bit is set if this method can be
+    // called reflectively.
+    int requiredParameterCount = parameters.requiredParameterCount << 1;
+    if (member.isAccessor()) requiredParameterCount++;
+
+    int optionalParameterCount = parameters.optionalParameterCount << 1;
+    if (parameters.optionalParametersAreNamed) optionalParameterCount++;
+
+    expressions.add(code);
+
+    // TODO(ahe): Remove comments from output.
+    List tearOffInfo =
+        [new jsAst.LiteralString('$callSelectorString /* tearOffInfo */')];
+
+    if (needsStubs || canTearOff) {
+      addParameterStubs(member, (Selector selector, jsAst.Fun function) {
+        expressions.add(function);
+        if (member.isInstanceMember()) {
+          Set invokedSelectors =
+              compiler.codegenWorld.invokedNames[member.name];
+          if (invokedSelectors != null && invokedSelectors.contains(selector)) {
+            expressions.add(js.string(namer.invocationName(selector)));
+          } else {
+            // Don't add a stub for calling this as a regular instance method,
+            // we only need the "call" stub for implicit closures of this
+            // method.
+            expressions.add("null");
+          }
+        } else {
+          // Static methods don't need "named" stubs as the default arguments
+          // are inlined at call sites. But static methods might need "call"
+          // stubs for implicit closures.
+          expressions.add("null");
+          // TOOD(ahe): Since we know when reading static data versus instance
+          // data, we can eliminate this element.
+        }
+        Set<Selector> callSelectors = compiler.codegenWorld.invokedNames[
+            namer.closureInvocationSelectorName];
+        Selector callSelector = selector.toCallSelector();
+        String callSelectorString = 'null';
+        if (canTearOff && callSelectors != null &&
+            callSelectors.contains(callSelector)) {
+          callSelectorString = '"${namer.invocationName(callSelector)}"';
+        }
+        tearOffInfo.add(
+            new jsAst.LiteralString('$callSelectorString /* tearOffInfo */'));
+      }, canTearOff);
+    }
+
+    jsAst.Expression memberTypeExpression;
+    if (canTearOff || canBeReflected) {
+      DartType memberType;
+      if (member.isGenerativeConstructorBody()) {
+        var body = member;
+        memberType = body.constructor.computeType(compiler);
+      } else {
+        memberType = member.computeType(compiler);
+      }
+      if (memberType.containsTypeVariables) {
+        jsAst.Expression thisAccess = js(r'this.$receiver');
+        memberTypeExpression =
+            backend.rti.getSignatureEncoding(memberType, thisAccess);
+      } else {
+        memberTypeExpression =
+            js.toExpression(task.metadataEmitter.reifyType(memberType));
+      }
+    } else {
+      memberTypeExpression = js('null');
+    }
+
+    expressions
+        ..addAll(tearOffInfo)
+        ..add((tearOffName == null || member.isAccessor())
+              ? js("null") : js.string(tearOffName))
+        ..add(requiredParameterCount)
+        ..add(optionalParameterCount)
+        ..add(memberTypeExpression)
+        ..addAll(task.metadataEmitter.reifyDefaultArguments(member));
+
+    if (canBeReflected || canBeApplied) {
+      parameters.orderedForEachParameter((Element parameter) {
+        expressions.add(task.metadataEmitter.reifyName(parameter.name));
+      });
+    }
+    if (canBeReflected) {
+      jsAst.LiteralString reflectionName;
+      if (member.isConstructor()) {
+        String reflectionNameString = task.getReflectionName(member, name);
+        reflectionName =
+            new jsAst.LiteralString(
+                '"new ${Elements.reconstructConstructorName(member)}"'
+                ' /* $reflectionNameString */');
+      } else {
+        reflectionName = js.string(member.name);
+      }
+      expressions
+          ..add(reflectionName)
+          ..addAll(task.metadataEmitter.computeMetadata(member));
+    } else if (isClosure && canBeApplied) {
+      expressions.add(js.string(member.name));
+    }
+
+    builder.addProperty(name, js.toExpression(expressions));
   }
 
   void addMemberField(VariableElement member, ClassBuilder builder) {
diff --git a/sdk/lib/_internal/compiler/implementation/js_emitter/declarations.dart b/sdk/lib/_internal/compiler/implementation/js_emitter/declarations.dart
index fb2cf01..8ca7b9b 100644
--- a/sdk/lib/_internal/compiler/implementation/js_emitter/declarations.dart
+++ b/sdk/lib/_internal/compiler/implementation/js_emitter/declarations.dart
@@ -8,9 +8,14 @@
 const DEBUG_FAST_OBJECTS = false;
 
 /**
- * A convenient type alias for some functions that emit keyed values.
+ * Call-back for adding stub [function] for [selector].
  */
-typedef void DefineStubFunction(String invocationName, jsAst.Expression value);
+typedef void AddStubFunction(Selector selector, jsAst.Fun function);
+
+/**
+ * Call-back for adding property with [name] and [value].
+ */
+typedef void AddPropertyFunction(String name, jsAst.Expression value);
 
 /**
  * [member] is a field (instance, static, or top level).
diff --git a/sdk/lib/_internal/compiler/implementation/js_emitter/interceptor_emitter.dart b/sdk/lib/_internal/compiler/implementation/js_emitter/interceptor_emitter.dart
index 0a458e4..94fe5e4 100644
--- a/sdk/lib/_internal/compiler/implementation/js_emitter/interceptor_emitter.dart
+++ b/sdk/lib/_internal/compiler/implementation/js_emitter/interceptor_emitter.dart
@@ -7,6 +7,12 @@
 class InterceptorEmitter extends CodeEmitterHelper {
   final Set<String> interceptorInvocationNames = new Set<String>();
 
+  void recordMangledNameOfMemberMethod(FunctionElement member, String name) {
+    if (backend.isInterceptedMethod(member)) {
+      interceptorInvocationNames.add(name);
+    }
+  }
+
   Set<ClassElement> interceptorsReferencedFromConstants() {
     Set<ClassElement> classes = new Set<ClassElement>();
     ConstantHandler handler = compiler.constantHandler;
diff --git a/sdk/lib/_internal/compiler/implementation/js_emitter/js_emitter.dart b/sdk/lib/_internal/compiler/implementation/js_emitter/js_emitter.dart
index cf261ca..c84e44e 100644
--- a/sdk/lib/_internal/compiler/implementation/js_emitter/js_emitter.dart
+++ b/sdk/lib/_internal/compiler/implementation/js_emitter/js_emitter.dart
@@ -18,8 +18,8 @@
 import '../dart2jslib.dart' show
     CodeBuffer;
 
-import '../elements/modelx.dart' show
-    FunctionElementX;
+import '../elements/elements.dart' show
+    TypeVariableElement;
 
 import '../js/js.dart' show
     js;
@@ -58,9 +58,10 @@
 import '../util/uri_extras.dart' show
     relativize;
 
+import '../dump_info.dart' as dumpInfo;
+
 part 'class_builder.dart';
 part 'class_emitter.dart';
-part 'closure_invocation_element.dart';
 part 'code_emitter_helper.dart';
 part 'code_emitter_task.dart';
 part 'container_builder.dart';
diff --git a/sdk/lib/_internal/compiler/implementation/js_emitter/metadata_emitter.dart b/sdk/lib/_internal/compiler/implementation/js_emitter/metadata_emitter.dart
index 6fb21d3..85570b2 100644
--- a/sdk/lib/_internal/compiler/implementation/js_emitter/metadata_emitter.dart
+++ b/sdk/lib/_internal/compiler/implementation/js_emitter/metadata_emitter.dart
@@ -42,9 +42,9 @@
     });
   }
 
-  jsAst.Node reifyDefaultArguments(FunctionElement function) {
+  List<int> reifyDefaultArguments(FunctionElement function) {
     FunctionSignature signature = function.computeSignature(compiler);
-    if (signature.optionalParameterCount == 0) return null;
+    if (signature.optionalParameterCount == 0) return const [];
     List<int> defaultValues = <int>[];
     for (Element element in signature.orderedOptionalParameters) {
       Constant value =
@@ -55,7 +55,7 @@
               .getText();
       defaultValues.add(addGlobalMetadata(stringRepresentation));
     }
-    return js.toExpression(defaultValues);
+    return defaultValues;
   }
 
   int reifyMetadata(MetadataAnnotation annotation) {
@@ -118,21 +118,10 @@
     buffer.write('];$n');
   }
 
-  jsAst.Fun extendWithMetadata(FunctionElement element, jsAst.Fun code) {
-    if (!backend.retainMetadataOf(element)) return code;
+  List<int> computeMetadata(FunctionElement element) {
     return compiler.withCurrentElement(element, () {
+      if (!backend.retainMetadataOf(element)) return const <int>[];
       List<int> metadata = <int>[];
-      FunctionSignature signature = element.functionSignature;
-      if (element.isConstructor()) {
-        metadata.add(reifyType(element.getEnclosingClass().thisType));
-      } else {
-        metadata.add(reifyType(signature.returnType));
-      }
-      signature.forEachParameter((Element parameter) {
-        metadata
-            ..add(reifyName(parameter.name))
-            ..add(reifyType(parameter.computeType(compiler)));
-      });
       Link link = element.metadata;
       // TODO(ahe): Why is metadata sometimes null?
       if (link != null) {
@@ -140,8 +129,7 @@
           metadata.add(reifyMetadata(link.head));
         }
       }
-      code.body.statements.add(js.string(metadata.join(',')).toStatement());
-      return code;
+      return metadata;
     });
   }
 }
diff --git a/sdk/lib/_internal/compiler/implementation/js_emitter/nsm_emitter.dart b/sdk/lib/_internal/compiler/implementation/js_emitter/nsm_emitter.dart
index 4e61cd7..5fabe21 100644
--- a/sdk/lib/_internal/compiler/implementation/js_emitter/nsm_emitter.dart
+++ b/sdk/lib/_internal/compiler/implementation/js_emitter/nsm_emitter.dart
@@ -18,7 +18,7 @@
 
   static const MAX_MINIFIED_LENGTH_FOR_DIFF_ENCODING = 4;
 
-  void emitNoSuchMethodHandlers(DefineStubFunction defineStub) {
+  void emitNoSuchMethodHandlers(AddPropertyFunction addProperty) {
     // Do not generate no such method handlers if there is no class.
     if (compiler.codegenWorld.instantiatedClasses.isEmpty) return;
 
@@ -55,8 +55,8 @@
     compiler.codegenWorld.invokedSetters.forEach(addNoSuchMethodHandlers);
 
     // Set flag used by generateMethod helper below.  If we have very few
-    // handlers we use defineStub for them all, rather than try to generate them
-    // at runtime.
+    // handlers we use addProperty for them all, rather than try to generate
+    // them at runtime.
     bool haveVeryFewNoSuchMemberHandlers =
         (addedJsNames.length < VERY_FEW_NO_SUCH_METHOD_HANDLERS);
 
@@ -104,12 +104,12 @@
       Selector selector = addedJsNames[jsName];
       jsAst.Expression method = generateMethod(jsName, selector);
       if (method != null) {
-        defineStub(jsName, method);
+        addProperty(jsName, method);
         String reflectionName = task.getReflectionName(selector, jsName);
         if (reflectionName != null) {
           bool accessible = compiler.world.allFunctions.filter(selector).any(
               (Element e) => backend.isAccessibleByReflection(e));
-          defineStub('+$reflectionName', js(accessible ? '1' : '0'));
+          addProperty('+$reflectionName', js(accessible ? '1' : '0'));
         }
       }
     }
diff --git a/sdk/lib/_internal/compiler/implementation/js_emitter/reflection_data_parser.dart b/sdk/lib/_internal/compiler/implementation/js_emitter/reflection_data_parser.dart
index 864f130..1076afe 100644
--- a/sdk/lib/_internal/compiler/implementation/js_emitter/reflection_data_parser.dart
+++ b/sdk/lib/_internal/compiler/implementation/js_emitter/reflection_data_parser.dart
@@ -4,21 +4,140 @@
 
 part of dart2js.js_emitter;
 
+// TODO(ahe): Share these with js_helper.dart.
+const FUNCTION_INDEX = 0;
+const NAME_INDEX = 1;
+const CALL_NAME_INDEX = 2;
+const REQUIRED_PARAMETER_INDEX = 3;
+const OPTIONAL_PARAMETER_INDEX = 4;
+const DEFAULT_ARGUMENTS_INDEX = 5;
+
 // TODO(ahe): This code should be integrated in CodeEmitterTask.finishClasses.
-String getReflectionDataParser(String classesCollector, Namer namer) {
+String getReflectionDataParser(String classesCollector,
+                               JavaScriptBackend backend) {
+  Namer namer = backend.namer;
+  Compiler compiler = backend.compiler;
+  Element closureFromTearOff = compiler.findHelper('closureFromTearOff');
+  String tearOffAccess =
+      // Default value for mocked-up test libraries.
+      'function () { throw "Helper \'closureFromTearOff\' missing." }';
+  if (closureFromTearOff != null) {
+    tearOffAccess = namer.isolateAccess(closureFromTearOff);
+  }
   String metadataField = '"${namer.metadataField}"';
   String reflectableField = namer.reflectableField;
+
+  // TODO(ahe): Move this string constants to namer.
+  String reflectionInfoField = r'$reflectionInfo';
+  String reflectionNameField = r'$reflectionName';
+  String metadataIndexField = r'$metadataIndex';
+
   String defaultValuesField = namer.defaultValuesField;
   String methodsWithOptionalArgumentsField =
       namer.methodsWithOptionalArgumentsField;
-  return '''
+
+  String header = '''
 (function (reflectionData) {
+  "use strict";
 '''
 // [map] returns an object literal that V8 shouldn't try to optimize with a
 // hidden class. This prevents a potential performance problem where V8 tries
 // to build a hidden class for an object used as a hashMap.
 '''
   function map(x){x={x:x};delete x.x;return x}
+''';
+
+
+  /**
+   * See [dart2js.js_emitter.ContainerBuilder.addMemberMethod] for format of
+   * [array].
+   */
+  String addStubs = '''
+  function addStubs(descriptor, array, name, isStatic,''' // Break long line.
+                ''' originalDescriptor, functions) {
+    var f, funcs =''' // Break long line.
+    ''' [originalDescriptor[name] =''' // Break long line.
+    ''' descriptor[name] = f = ${readFunction("array", "$FUNCTION_INDEX")}];
+    f.\$stubName = name;
+    functions.push(name);
+    for (var index = $FUNCTION_INDEX; index < array.length; index += 2) {
+      f = array[index + 1];
+      if (typeof f != "function") break;
+      f.\$stubName = ${readString("array", "index + 2")};
+      funcs.push(f);
+      if (f.\$stubName) {
+        originalDescriptor[f.\$stubName] = descriptor[f.\$stubName] = f;
+        functions.push(f.\$stubName);
+      }
+    }
+    for (var i = 0; i < funcs.length; index++, i++) {
+      funcs[i].\$callName = ${readString("array", "index + 1")};
+    }
+    var getterStubName = ${readString("array", "++index")};
+    array = array.slice(++index);
+    var requiredParameterInfo = ${readInt("array", "0")};
+    var requiredParameterCount = requiredParameterInfo >> 1;
+    var isAccessor = (requiredParameterInfo & 1) === 1;
+    var isSetter = requiredParameterInfo === 3;
+    var isGetter = requiredParameterInfo === 1;
+    var optionalParameterInfo = ${readInt("array", "1")};
+    var optionalParameterCount = optionalParameterInfo >> 1;
+    var optionalParametersAreNamed = (optionalParameterInfo & 1) === 1;
+    var functionTypeIndex = ${readFunctionType("array", "2")};
+    var isReflectable =''' // Break long line.
+    ''' array.length > requiredParameterCount + optionalParameterCount + 3;
+    if (getterStubName) {
+      f = tearOff(funcs, array, isStatic, name);
+'''
+      /* Used to create an isolate using spawnFunction.*/
+'''
+      if (isStatic) init.globalFunctions[name] = f;
+      originalDescriptor[getterStubName] = descriptor[getterStubName] = f;
+      funcs.push(f);
+      if (getterStubName) functions.push(getterStubName);
+      f.\$stubName = getterStubName;
+      f.\$callName = null;
+    }
+    if (isReflectable) {
+      for (var i = 0; i < funcs.length; i++) {
+        funcs[i].$reflectableField = 1;
+        funcs[i].$reflectionInfoField = array;
+      }
+    }
+    if (isReflectable) {
+      var unmangledNameIndex =''' // Break long line.
+      ''' optionalParameterCount * 2 + requiredParameterCount + 3;
+      var unmangledName = ${readString("array", "unmangledNameIndex")};
+      var reflectionName =''' // Break long line.
+      ''' unmangledName + ":" + requiredParameterCount +''' // Break long line.
+      ''' ":" + optionalParameterCount;
+      if (isGetter) {
+        reflectionName = unmangledName;
+      } else if (isSetter) {
+        reflectionName = unmangledName + "=";
+      }
+      if (isStatic) {
+        init.mangledGlobalNames[name] = reflectionName;
+      } else {
+        init.mangledNames[name] = reflectionName;
+      }
+      funcs[0].$reflectionNameField = reflectionName;
+      funcs[0].$metadataIndexField = unmangledNameIndex + 1;
+      if (optionalParameterCount) descriptor[unmangledName + "*"] = funcs[0];
+    }
+  }
+''';
+
+  String tearOff = '''
+  function tearOff(funcs, reflectionInfo, isStatic, name) {
+    return function() {
+      return $tearOffAccess(''' // Break long line.
+       '''this, funcs, reflectionInfo, isStatic, arguments, name);
+    }
+  }
+''';
+
+  String init = '''
   if (!init.libraries) init.libraries = [];
   if (!init.mangledNames) init.mangledNames = map();
   if (!init.mangledGlobalNames) init.mangledGlobalNames = map();
@@ -53,6 +172,9 @@
     var fields = descriptor && descriptor[""];
     var classes = [];
     var functions = [];
+''';
+
+  String processStatics = '''
     function processStatics(descriptor) {
       for (var property in descriptor) {
         if (!hasOwnProperty.call(descriptor, property)) continue;
@@ -63,9 +185,9 @@
         if (firstChar === "+") {
           mangledGlobalNames[previousProperty] = property.substring(1);
           if (descriptor[property] == 1) ''' // Break long line.
-'''descriptor[previousProperty].$reflectableField = 1;
+         '''descriptor[previousProperty].$reflectableField = 1;
           if (element && element.length) ''' // Break long line.
-'''init.typeInformation[previousProperty] = element;
+         '''init.typeInformation[previousProperty] = element;
         } else if (firstChar === "@") {
           property = property.substring(1);
           ${namer.currentIsolate}[property][$metadataField] = element;
@@ -80,6 +202,9 @@
           globalObject[previousProperty = property] = element;
           functions.push(property);
           init.globalFunctions[property] = element;
+        } else if (element.constructor === Array) {
+          addStubs(globalObject, element, property, ''' // Break long line.
+                '''true, descriptor, functions);
         } else {
           previousProperty = property;
           var newDesc = {};
@@ -92,7 +217,7 @@
             } else if (firstChar === "+") {
               mangledNames[previousProp] = prop.substring(1);
               if (element[prop] == 1) ''' // Break long line.
-'''element[previousProp].$reflectableField = 1;
+             '''element[previousProp].$reflectableField = 1;
             } else if (firstChar === "@" && prop !== "@") {
               newDesc[prop.substring(1)][$metadataField] = element[prop];
             } else if (firstChar === "*") {
@@ -103,7 +228,14 @@
               }
               optionalMethods[prop] = previousProp;
             } else {
-              newDesc[previousProp = prop] = element[prop];
+              var elem = element[prop];
+              if (prop && elem != null &&''' // Break long line.
+              ''' elem.constructor === Array &&''' // Break long line.
+              ''' prop !== "<>") {
+                addStubs(newDesc, elem, prop, false, element, []);
+              } else {
+                newDesc[previousProp = prop] = elem;
+              }
             }
           }
           $classesCollector[property] = [globalObject, newDesc];
@@ -111,9 +243,55 @@
         }
       }
     }
+''';
+
+String footer = '''
     processStatics(descriptor);
     libraries.push([name, uri, classes, functions, metadata, fields, isRoot,
                     globalObject]);
   }
-})''';
+})
+''';
+
+ return '$header$processStatics$addStubs$tearOff$init$footer';
+}
+
+String readString(String array, String index) {
+  return readChecked(
+      array, index, 'result != null && typeof result != "string"', 'string');
+}
+
+String readInt(String array, String index) {
+  return readChecked(
+      array, index,
+      'result != null && (typeof result != "number" || (result|0) !== result)',
+      'int');
+}
+
+String readFunction(String array, String index) {
+  return readChecked(
+      array, index, 'result != null && typeof result != "function"',
+      'function');
+}
+
+String readFunctionType(String array, String index) {
+  return readChecked(
+      array, index,
+      'result != null && '
+      '(typeof result != "number" || (result|0) !== result) && '
+      'typeof result != "function"',
+      'function or int');
+}
+
+String readChecked(String array, String index, String check, String type) {
+  return '''
+(function() {
+  var result = $array[$index];
+  if ($check) {
+    throw new Error(
+        name + ": expected value of type \'$type\' at index " + ($index) +
+        " but got " + (typeof result));
+  }
+  return result;
+})()''';
 }
diff --git a/sdk/lib/_internal/compiler/implementation/js_emitter/type_test_emitter.dart b/sdk/lib/_internal/compiler/implementation/js_emitter/type_test_emitter.dart
index 0d521bb..92e4f63 100644
--- a/sdk/lib/_internal/compiler/implementation/js_emitter/type_test_emitter.dart
+++ b/sdk/lib/_internal/compiler/implementation/js_emitter/type_test_emitter.dart
@@ -53,11 +53,6 @@
       builder.addProperty(namer.operatorIs(other), js('true'));
     }
 
-    void generateIsFunctionTypeTest(FunctionType type) {
-      String operator = namer.operatorIsType(type);
-      builder.addProperty(operator, new jsAst.LiteralBool(true));
-    }
-
     void generateFunctionTypeSignature(Element method, FunctionType type) {
       assert(method.isImplementation);
       jsAst.Expression thisAccess = new jsAst.This();
@@ -75,7 +70,11 @@
       RuntimeTypes rti = backend.rti;
       jsAst.Expression encoding = rti.getSignatureEncoding(type, thisAccess);
       String operatorSignature = namer.operatorSignature();
-      builder.addProperty(operatorSignature, encoding);
+      if (!type.containsTypeVariables) {
+        builder.functionType = '${task.metadataEmitter.reifyType(type)}';
+      } else {
+        builder.addProperty(operatorSignature, encoding);
+      }
     }
 
     void generateSubstitution(ClassElement cls, {bool emitNull: false}) {
@@ -94,7 +93,7 @@
     }
 
     generateIsTestsOn(classElement, generateIsTest,
-        generateIsFunctionTypeTest, generateFunctionTypeSignature,
+        generateFunctionTypeSignature,
         generateSubstitution);
   }
 
@@ -107,7 +106,6 @@
    */
   void generateIsTestsOn(ClassElement cls,
                          void emitIsTest(Element element),
-                         FunctionTypeTestEmitter emitIsFunctionTypeTest,
                          FunctionTypeSignatureEmitter emitFunctionTypeSignature,
                          SubstitutionEmitter emitSubstitution) {
     if (checkedClasses.contains(cls)) {
@@ -176,7 +174,7 @@
             getFunctionTypeChecksOn(callType);
         generateFunctionTypeTests(
             call, callType, functionTypeChecks,
-            emitFunctionTypeSignature, emitIsFunctionTypeTest);
+            emitFunctionTypeSignature);
      }
     }
 
@@ -250,38 +248,14 @@
       Element method,
       FunctionType methodType,
       Map<FunctionType, bool> functionTypeChecks,
-      FunctionTypeSignatureEmitter emitFunctionTypeSignature,
-      FunctionTypeTestEmitter emitIsFunctionTypeTest) {
-    bool hasDynamicFunctionTypeCheck = false;
-    int neededPredicates = 0;
+      FunctionTypeSignatureEmitter emitFunctionTypeSignature) {
+
+    // TODO(ahe): We should be able to remove this forEach loop.
     functionTypeChecks.forEach((FunctionType functionType, bool knownSubtype) {
-      if (!knownSubtype) {
-        registerDynamicFunctionTypeCheck(functionType);
-        hasDynamicFunctionTypeCheck = true;
-      } else if (!backend.rti.isSimpleFunctionType(functionType)) {
-        // Simple function types are always checked using predicates and should
-        // not provoke generation of signatures.
-        neededPredicates++;
-      }
+      registerDynamicFunctionTypeCheck(functionType);
     });
-    bool alwaysUseSignature = false;
-    if (hasDynamicFunctionTypeCheck ||
-        neededPredicates > MAX_FUNCTION_TYPE_PREDICATES) {
-      emitFunctionTypeSignature(method, methodType);
-      alwaysUseSignature = true;
-    }
-    functionTypeChecks.forEach((FunctionType functionType, bool knownSubtype) {
-      if (knownSubtype) {
-        if (backend.rti.isSimpleFunctionType(functionType)) {
-          // Simple function types are always checked using predicates.
-          emitIsFunctionTypeTest(functionType);
-        } else if (alwaysUseSignature) {
-          registerDynamicFunctionTypeCheck(functionType);
-        } else {
-          emitIsFunctionTypeTest(functionType);
-        }
-      }
-    });
+
+    emitFunctionTypeSignature(method, methodType);
   }
 
   void registerDynamicFunctionTypeCheck(FunctionType functionType) {
diff --git a/sdk/lib/_internal/compiler/implementation/ordered_typeset.dart b/sdk/lib/_internal/compiler/implementation/ordered_typeset.dart
index 26a9e9f..d7b62de 100644
--- a/sdk/lib/_internal/compiler/implementation/ordered_typeset.dart
+++ b/sdk/lib/_internal/compiler/implementation/ordered_typeset.dart
@@ -1,10 +1,10 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-library resolution.ordered_typeset_builder;
+library ordered_typeset;
 
-import 'dart2jslib.dart' show Compiler, MessageKind;
+import 'dart2jslib.dart' show Compiler, MessageKind, invariant;
 import 'dart_types.dart';
 import 'elements/elements.dart' show ClassElement;
 import 'util/util.dart' show Link, LinkBuilder;
@@ -48,7 +48,9 @@
   /// class which this set represents. This is for instance used to create the
   /// type set for [ClosureClassElement] which extends [Closure].
   OrderedTypeSet extendClass(InterfaceType type) {
-    assert(type.treatAsRaw);
+    assert(invariant(type.element, types.head.treatAsRaw,
+        message: 'Cannot extend generic class ${types.head} using '
+                 'OrderedTypeSet.extendClass'));
     Link<DartType> extendedTypes =
         new LinkEntry<DartType>(type, types);
     List<Link<DartType>> list = new List<Link<DartType>>(levels + 1);
diff --git a/sdk/lib/_internal/compiler/implementation/resolution/members.dart b/sdk/lib/_internal/compiler/implementation/resolution/members.dart
index c29501b..9f58576 100644
--- a/sdk/lib/_internal/compiler/implementation/resolution/members.dart
+++ b/sdk/lib/_internal/compiler/implementation/resolution/members.dart
@@ -324,7 +324,10 @@
           originParameter.parseNode(compiler).toString();
       String patchParameterText =
           patchParameter.parseNode(compiler).toString();
-      if (originParameterText != patchParameterText) {
+      if (originParameterText != patchParameterText
+          // We special case the list constructor because of the
+          // optional parameter.
+          && origin != compiler.unnamedListConstructor) {
         compiler.reportError(
             originParameter.parseNode(compiler),
             MessageKind.PATCH_PARAMETER_MISMATCH,
@@ -758,6 +761,9 @@
     }
     for (MetadataAnnotation metadata in element.metadata) {
       metadata.ensureResolved(compiler);
+      if (!element.isProxy && metadata.value == compiler.proxyConstant) {
+        element.isProxy = true;
+      }
     }
 
     // Force resolution of metadata on non-instance members since they may be
@@ -1907,7 +1913,7 @@
 
   Element defineElement(Node node, Element element,
                         {bool doAddToScope: true}) {
-    compiler.ensure(element != null);
+    invariant(node, element != null);
     mapping[node] = element;
     if (doAddToScope) {
       Element existing = scope.add(element);
@@ -3804,8 +3810,9 @@
     : super(compiler, classElement, mapping);
 
   DartType visitClassNode(ClassNode node) {
-    compiler.ensure(element != null);
-    compiler.ensure(element.resolutionState == STATE_STARTED);
+    invariant(node, element != null);
+    invariant(element, element.resolutionState == STATE_STARTED,
+        message: () => 'cyclic resolution of class $element');
 
     InterfaceType type = element.computeType(compiler);
     scope = new TypeDeclarationScope(scope, element);
@@ -3890,8 +3897,9 @@
   }
 
   DartType visitNamedMixinApplication(NamedMixinApplication node) {
-    compiler.ensure(element != null);
-    compiler.ensure(element.resolutionState == STATE_STARTED);
+    invariant(node, element != null);
+    invariant(element, element.resolutionState == STATE_STARTED,
+        message: () => 'cyclic resolution of class $element');
 
     if (identical(node.classKeyword.stringValue, 'typedef')) {
       // TODO(aprelev@gmail.com): Remove this deprecation diagnostic
diff --git a/sdk/lib/_internal/compiler/implementation/scanner/class_element_parser.dart b/sdk/lib/_internal/compiler/implementation/scanner/class_element_parser.dart
index 69a62ef..1d17df3 100644
--- a/sdk/lib/_internal/compiler/implementation/scanner/class_element_parser.dart
+++ b/sdk/lib/_internal/compiler/implementation/scanner/class_element_parser.dart
@@ -165,7 +165,7 @@
     pushNode(null);
     void buildFieldElement(String name, Element fields) {
       Element element =
-          new VariableElementX(name, fields, ElementKind.FIELD, null);
+          new FieldElementX(name, fields, null);
       addMember(element);
     }
     buildFieldElements(modifiers, variableDefinitions.definitions,
diff --git a/sdk/lib/_internal/compiler/implementation/scanner/listener.dart b/sdk/lib/_internal/compiler/implementation/scanner/listener.dart
index 71992fa..1be0e2a 100644
--- a/sdk/lib/_internal/compiler/implementation/scanner/listener.dart
+++ b/sdk/lib/_internal/compiler/implementation/scanner/listener.dart
@@ -858,7 +858,7 @@
 
   void endTopLevelFields(int count, Token beginToken, Token endToken) {
     void buildFieldElement(String name, Element fields) {
-      pushElement(new VariableElementX(name, fields, ElementKind.FIELD, null));
+      pushElement(new FieldElementX(name, fields, null));
     }
     NodeList variables = makeNodeList(count, null, null, ",");
     TypeAnnotation type = popNode();
diff --git a/sdk/lib/_internal/compiler/implementation/scanner/scannerlib.dart b/sdk/lib/_internal/compiler/implementation/scanner/scannerlib.dart
index f5592f4..5813730 100644
--- a/sdk/lib/_internal/compiler/implementation/scanner/scannerlib.dart
+++ b/sdk/lib/_internal/compiler/implementation/scanner/scannerlib.dart
@@ -12,6 +12,7 @@
          FunctionElementX,
          TypedefElementX,
          VariableElementX,
+         FieldElementX,
          VariableListElementX,
          ClassElementX,
          MetadataAnnotationX,
diff --git a/sdk/lib/_internal/compiler/implementation/ssa/builder.dart b/sdk/lib/_internal/compiler/implementation/ssa/builder.dart
index b70c2de..9bf573c 100644
--- a/sdk/lib/_internal/compiler/implementation/ssa/builder.dart
+++ b/sdk/lib/_internal/compiler/implementation/ssa/builder.dart
@@ -649,7 +649,7 @@
     // Remove locals that are not in all handlers.
     directLocals = new Map<Element, HInstruction>();
     joinedLocals.forEach((element, instruction) {
-      if (instruction is HPhi
+      if (element != closureData.thisElement
           && instruction.inputs.length != localsHandlers.length) {
         joinBlock.removePhi(instruction);
       } else {
@@ -884,37 +884,72 @@
 /**
  * This mixin implements functionality that is shared between the [SsaBuilder]
  * and the [SsaFromIrBuilder] classes.
+ *
+ * The type parameter [N] represents the node type from which the SSA form is
+ * built, either [IrNode] or [Node].
+ *
+ * This class does not define any fields because [SsaFromIrInliner], one of its
+ * subclasses, is implemented using delegation and does not need fields. The two
+ * other subclasses, [SsaBuilder] and [SsaFromIrBuilder], implement most of the
+ * properties as fields. To avoid copy-pasting these definitions, the mixin
+ * [SsaGraphBuilderFields] is inserted in between.
  */
-class SsaGraphBuilderMixin {
-  final HGraph graph = new HGraph();
+abstract class SsaGraphBuilderMixin<N> {
+  Compiler get compiler;
+
+  JavaScriptBackend get backend;
+
+  HGraph get graph;
 
   /**
    * The current block to add instructions to. Might be null, if we are
    * visiting dead code, but see [isReachable].
    */
-  HBasicBlock _current;
+  HBasicBlock get current;
+
+  void set current(HBasicBlock block);
 
   /**
-   * The most recently opened block. Has the same value as [_current] while
-   * the block is open, but unlike [_current], it isn't cleared when the
+   * The most recently opened block. Has the same value as [current] while
+   * the block is open, but unlike [current], it isn't cleared when the
    * current block is closed.
    */
-  HBasicBlock lastOpenedBlock;
+  HBasicBlock get lastOpenedBlock;
+
+  void set lastOpenedBlock(HBasicBlock block);
 
   /**
    * Indicates whether the current block is dead (because it has a throw or a
-   * return further up).  If this is false, then [_current] may be null.  If the
+   * return further up). If this is false, then [current] may be null. If the
    * block is dead then it may also be aborted, but for simplicity we only
-   * abort on statement boundaries, not in the middle of expressions.  See
+   * abort on statement boundaries, not in the middle of expressions. See
    * isAborted.
    */
-  bool isReachable = true;
+  bool get isReachable;
 
-  HBasicBlock get current => _current;
-  void set current(c) {
-    isReachable = c != null;
-    _current = c;
-  }
+  void set isReachable(bool value);
+
+  /**
+   * True if we are visiting the expression of a throw statement.
+   */
+  bool get inThrowExpression;
+
+  /**
+   * The loop nesting is consulted when inlining a function invocation in
+   * [tryInlineMethod]. The inlining heuristics take this information into
+   * account.
+   */
+  int get loopNesting;
+
+  List<InliningState> get inliningStack;
+
+  /**
+   * This stack contains declaration elements of the functions being built
+   * or inlined by this builder.
+   */
+  List<Element> get sourceElementStack;
+
+  Element get sourceElement => sourceElementStack.last;
 
   HBasicBlock addNewBlock() {
     HBasicBlock block = graph.addNewBlock();
@@ -950,7 +985,7 @@
   }
 
   bool isAborted() {
-    return _current == null;
+    return current == null;
   }
 
   /**
@@ -967,9 +1002,349 @@
   void add(HInstruction instruction) {
     current.add(instruction);
   }
+
+  void addWithPosition(HInstruction instruction, N node) {
+    add(attachPosition(instruction, node));
+  }
+
+  HInstruction attachPosition(HInstruction instruction, N node);
+
+  SourceFile currentSourceFile() {
+    Element element = sourceElement;
+    // TODO(johnniwinther): remove the 'element.patch' hack.
+    if (element is FunctionElement) {
+      FunctionElement functionElement = element;
+      if (functionElement.patch != null) element = functionElement.patch;
+    }
+    Script script = element.getCompilationUnit().script;
+    return script.file;
+  }
+
+  void checkValidSourceFileLocation(
+      SourceFileLocation location, SourceFile sourceFile, int offset) {
+    if (!location.isValid()) {
+      throw MessageKind.INVALID_SOURCE_FILE_LOCATION.message(
+          {'offset': offset,
+           'fileName': sourceFile.filename,
+           'length': sourceFile.length});
+    }
+  }
+
+  /**
+   * Prepares the state of the builder for inlining an invocaiton of [function].
+   */
+  void enterInlinedMethod(FunctionElement function,
+                          Selector selector,
+                          List<HInstruction> providedArguments,
+                          N currentNode) {
+    assert(invariant(function, function.isImplementation));
+    assert(providedArguments != null);
+
+    List<HInstruction> compiledArguments;
+    bool isInstanceMember = function.isInstanceMember();
+    // For static calls, [providedArguments] is complete, default arguments
+    // have been included if necessary, see [addStaticSendArgumentsToList].
+    if (!isInstanceMember
+        || currentNode == null // In erroneous code, currentNode can be null.
+        || providedArgumentsKnownToBeComplete(currentNode)
+        || function.isGenerativeConstructorBody()
+        || selector.isGetter()) {
+      // For these cases, the provided argument list is known to be complete.
+      compiledArguments = providedArguments;
+    } else {
+      compiledArguments = completeDynamicSendArgumentsList(
+          selector, function, providedArguments);
+    }
+    setupInliningState(function, compiledArguments);
+  }
+
+  /**
+   * Returns a complete argument list for a dynamic call of [function]. The
+   * initial argument list [providedArguments], created by
+   * [addDynamicSendArgumentsToList], does not include values for default
+   * arguments used in the call. The reason is that the target function (which
+   * defines the defaults) is not known.
+   *
+   * However, inlining can only be performed when the target function can be
+   * resolved statically. The defaults can therefore be included at this point.
+   *
+   * The [providedArguments] list contains first all positional arguments, then
+   * the provided named arguments (the named arguments that are defined in the
+   * [selector]) in a specific order (see [addDynamicSendArgumentsToList]).
+   */
+  List<HInstruction> completeDynamicSendArgumentsList(
+      Selector selector,
+      FunctionElement function,
+      List<HInstruction> providedArguments) {
+    assert(selector.applies(function, compiler));
+    FunctionSignature signature = function.computeSignature(compiler);
+    List<HInstruction> compiledArguments = new List<HInstruction>(
+        signature.parameterCount + 1); // Plus one for receiver.
+
+    compiledArguments[0] = providedArguments[0]; // Receiver.
+    int index = 1;
+    for (; index <= signature.requiredParameterCount; index++) {
+      compiledArguments[index] = providedArguments[index];
+    }
+    if (!signature.optionalParametersAreNamed) {
+      signature.forEachOptionalParameter((element) {
+        if (index < providedArguments.length) {
+          compiledArguments[index] = providedArguments[index];
+        } else {
+          compiledArguments[index] =
+              handleConstantForOptionalParameter(element);
+        }
+        index++;
+      });
+    } else {
+      /* Example:
+       *   void foo(a, {b, d, c})
+       *   foo(0, d = 1, b = 2)
+       *
+       * providedArguments = [0, 2, 1]
+       * selectorArgumentNames = [b, d]
+       * signature.orderedOptionalParameters = [b, c, d]
+       *
+       * For each parameter name in the signature, if the argument name matches
+       * we use the next provided argument, otherwise we get the default.
+       */
+      List<String> selectorArgumentNames = selector.getOrderedNamedArguments();
+      int namedArgumentIndex = 0;
+      int firstProvidedNamedArgument = index;
+      signature.orderedOptionalParameters.forEach((element) {
+        if (namedArgumentIndex < selectorArgumentNames.length &&
+            element.name == selectorArgumentNames[namedArgumentIndex]) {
+          // The named argument was provided in the function invocation.
+          compiledArguments[index] = providedArguments[
+              firstProvidedNamedArgument + namedArgumentIndex++];
+        } else {
+          compiledArguments[index] =
+              handleConstantForOptionalParameter(element);
+        }
+        index++;
+      });
+    }
+    return compiledArguments;
+  }
+
+  void setupInliningState(FunctionElement function,
+                          List<HInstruction> compiledArguments);
+
+  void leaveInlinedMethod();
+
+  /**
+   * Try to inline [element] within the currect context of the builder. The
+   * insertion point is the state of the builder.
+   */
+  bool tryInlineMethod(Element element,
+                       Selector selector,
+                       List<HInstruction> providedArguments,
+                       N currentNode) {
+    backend.registerStaticUse(element, compiler.enqueuer.codegen);
+
+    // Ensure that [element] is an implementation element.
+    element = element.implementation;
+    FunctionElement function = element;
+    bool hasIr = compiler.irBuilder.hasIr(function);
+
+    bool insideLoop = loopNesting > 0 || graph.calledInLoop;
+
+    // Bail out early if the inlining decision is in the cache and we can't
+    // inline (no need to check the hard constraints).
+    bool cachedCanBeInlined =
+        backend.inlineCache.canInline(function, insideLoop: insideLoop);
+    if (cachedCanBeInlined == false) return false;
+
+    bool meetsHardConstraints() {
+      // We cannot inline a method from a deferred library into a method
+      // which isn't deferred.
+      // TODO(ahe): But we should still inline into the same
+      // connected-component of the deferred library.
+      if (compiler.deferredLoadTask.isDeferred(element)) return false;
+      if (compiler.disableInlining) return false;
+
+      assert(selector != null
+             || Elements.isStaticOrTopLevel(element)
+             || element.isGenerativeConstructorBody());
+      if (selector != null && !selector.applies(function, compiler)) {
+        return false;
+      }
+
+      // Don't inline operator== methods if the parameter can be null.
+      if (element.name == '==') {
+        if (element.getEnclosingClass() != compiler.objectClass
+            && providedArguments[1].canBeNull()) {
+          return false;
+        }
+      }
+
+      // Generative constructors of native classes should not be called directly
+      // and have an extra argument that causes problems with inlining.
+      if (element.isGenerativeConstructor()
+          && Elements.isNativeOrExtendsNative(element.getEnclosingClass())) {
+        return false;
+      }
+
+      // A generative constructor body is not seen by global analysis,
+      // so we should not query for its type.
+      if (!element.isGenerativeConstructorBody()) {
+        // Don't inline if the return type was inferred to be non-null empty.
+        // This means that the function always throws an exception.
+        TypeMask returnType =
+            compiler.typesTask.getGuaranteedReturnTypeOfElement(element);
+        if (returnType != null
+            && returnType.isEmpty
+            && !returnType.isNullable) {
+          isReachable = false;
+          return false;
+        }
+      }
+
+      return true;
+    }
+
+    bool heuristicSayGoodToGo() {
+      // Don't inline recursivly
+      if (inliningStack.any((entry) => entry.function == function)) {
+        return false;
+      }
+
+      if (element.isSynthesized) return true;
+
+      if (cachedCanBeInlined == true) return cachedCanBeInlined;
+
+      if (inThrowExpression) return false;
+
+      int numParameters = function.functionSignature.parameterCount;
+      int maxInliningNodes;
+      bool useMaxInliningNodes = true;
+      if (insideLoop) {
+        maxInliningNodes = InlineWeeder.INLINING_NODES_INSIDE_LOOP +
+            InlineWeeder.INLINING_NODES_INSIDE_LOOP_ARG_FACTOR * numParameters;
+      } else {
+        maxInliningNodes = InlineWeeder.INLINING_NODES_OUTSIDE_LOOP +
+            InlineWeeder.INLINING_NODES_OUTSIDE_LOOP_ARG_FACTOR * numParameters;
+      }
+
+      // If a method is called only once, and all the methods in the
+      // inlining stack are called only once as well, we know we will
+      // save on output size by inlining this method.
+      TypesInferrer inferrer = compiler.typesTask.typesInferrer;
+      if (inferrer.isCalledOnce(element)
+          && (inliningStack.every(
+                  (entry) => inferrer.isCalledOnce(entry.function)))) {
+        useMaxInliningNodes = false;
+      }
+      bool canInline;
+      if (hasIr) {
+        IrFunction irFunction = compiler.irBuilder.getIr(function);
+        canInline = IrInlineWeeder.canBeInlined(
+            irFunction, maxInliningNodes, useMaxInliningNodes);
+      } else {
+        FunctionExpression functionNode = function.parseNode(compiler);
+        canInline = InlineWeeder.canBeInlined(
+            functionNode, maxInliningNodes, useMaxInliningNodes);
+      }
+      if (canInline) {
+        backend.inlineCache.markAsInlinable(element, insideLoop: insideLoop);
+      } else {
+        backend.inlineCache.markAsNonInlinable(element, insideLoop: insideLoop);
+      }
+      return canInline;
+    }
+
+    void doInlining() {
+      // Add an explicit null check on the receiver before doing the
+      // inlining. We use [element] to get the same name in the
+      // NoSuchMethodError message as if we had called it.
+      if (element.isInstanceMember()
+          && !element.isGenerativeConstructorBody()
+          && (selector.mask == null || selector.mask.isNullable)) {
+        addWithPosition(
+            new HFieldGet(null, providedArguments[0], backend.dynamicType,
+                          isAssignable: false),
+            currentNode);
+      }
+      enterInlinedMethod(function, selector, providedArguments, currentNode);
+      inlinedFrom(function, () {
+        potentiallyCheckInlinedParameterTypes(element);
+        doInline(function);
+      });
+      leaveInlinedMethod();
+    }
+
+    if (meetsHardConstraints() && heuristicSayGoodToGo()) {
+      doInlining();
+      return true;
+    }
+
+    return false;
+  }
+
+  void doInline(Element element);
+
+  inlinedFrom(Element element, f()) {
+    assert(element is FunctionElement || element is VariableElement);
+    return compiler.withCurrentElement(element, () {
+      // The [sourceElementStack] contains declaration elements.
+      sourceElementStack.add(element.declaration);
+      var result = f();
+      sourceElementStack.removeLast();
+      return result;
+    });
+  }
+
+  HInstruction handleConstantForOptionalParameter(Element parameter) {
+    Constant constant =
+        compiler.constantHandler.getConstantForVariable(parameter);
+    assert(invariant(parameter, constant != null,
+        message: 'No constant computed for $parameter'));
+    return graph.addConstant(constant, compiler);
+  }
+
+  /**
+   * In checked mode, generate type tests for the parameters of the inlined
+   * function.
+   */
+  void potentiallyCheckInlinedParameterTypes(FunctionElement function);
+
+  /**
+   * Some dynamic invocations are known to not use default arguments.
+   */
+  bool providedArgumentsKnownToBeComplete(N currentNode);
 }
 
-class SsaBuilder extends ResolvedVisitor with SsaGraphBuilderMixin {
+/**
+ * This class defines the abstract properties of [SsaGraphBuilderMixin] as
+ * fields. It is shared between the [SsaBuilder] and the [SsaFromIrBuilder].
+ */
+abstract class SsaGraphBuilderFields<N> implements SsaGraphBuilderMixin<N> {
+  final HGraph graph = new HGraph();
+
+  HBasicBlock _current;
+
+  HBasicBlock get current => _current;
+
+  void set current(c) {
+    isReachable = c != null;
+    _current = c;
+  }
+
+  HBasicBlock lastOpenedBlock;
+
+  bool isReachable = true;
+
+  bool inThrowExpression = false;
+
+  int loopNesting = 0;
+
+  final List<InliningState> inliningStack = <InliningState>[];
+
+  final List<Element> sourceElementStack = <Element>[];
+}
+
+class SsaBuilder extends ResolvedVisitor
+    with SsaGraphBuilderMixin<Node>, SsaGraphBuilderFields<Node> {
   final SsaBuilderTask builder;
   final JavaScriptBackend backend;
   final CodegenWorkItem work;
@@ -992,16 +1367,8 @@
   // We build the Ssa graph by simulating a stack machine.
   List<HInstruction> stack;
 
-  /**
-   * True if we are visiting the expression of a throw expression.
-   */
-  bool inThrowExpression = false;
-
-  final List<Element> sourceElementStack;
-
-  Element get currentElement => sourceElementStack.last.declaration;
   Element get currentNonClosureClass {
-    ClassElement cls = currentElement.getEnclosingClass();
+    ClassElement cls = sourceElement.getEnclosingClass();
     if (cls != null && cls.isClosure()) {
       var closureClass = cls;
       return closureClass.methodElement.getEnclosingClass();
@@ -1036,20 +1403,16 @@
       activationVariables = new Map<Element, HLocalValue>(),
       jumpTargets = new Map<TargetElement, JumpHandler>(),
       parameters = new Map<Element, HInstruction>(),
-      sourceElementStack = <Element>[work.element],
-      inliningStack = <InliningState>[],
       rti = builder.backend.rti,
       super(work.resolutionTree, builder.compiler) {
     localsHandler = new LocalsHandler(this);
+    sourceElementStack.add(work.element);
   }
 
-  List<InliningState> inliningStack;
-
   Element returnElement;
   DartType returnType;
 
   bool inTryStatement = false;
-  int loopNesting = 0;
 
   Constant getConstantForNode(Node node) {
     ConstantHandler handler = compiler.constantHandler;
@@ -1219,65 +1582,24 @@
     return result;
   }
 
-  /**
-   * Documentation wanted -- johnniwinther
-   *
-   * Invariant: [function] must be an implementation element.
-   */
-  InliningState enterInlinedMethod(FunctionElement function,
-                                   Selector selector,
-                                   List<HInstruction> providedArguments,
-                                   Node currentNode) {
-    assert(invariant(function, function.isImplementation));
-
-    List<HInstruction> compiledArguments;
-    bool isInstanceMember = function.isInstanceMember();
-
-    if (currentNode == null
-        || currentNode.asForIn() != null
-        || !isInstanceMember
-        || function.isGenerativeConstructorBody()) {
-      // For these cases, the provided arguments must match the
-      // expected parameters.
-      assert(providedArguments != null);
-      compiledArguments = providedArguments;
-    } else {
-      Send send = currentNode.asSend();
-      assert(providedArguments != null);
-      compiledArguments = new List<HInstruction>();
-      compiledArguments.add(providedArguments[0]);
-      // [providedArguments] contains the arguments given in our
-      // internal order (see [addDynamicSendArgumentsToList]). So we
-      // call [Selector.addArgumentsToList] only for getting the
-      // default values of the optional parameters.
-      bool succeeded = selector.addArgumentsToList(
-          send.isPropertyAccess ? null : send.arguments,
-          compiledArguments,
-          function,
-          (node) => null,
-          handleConstantForOptionalParameter,
-          compiler);
-      int argumentIndex = 1; // Skip receiver.
-      // [compiledArguments] now only contains the default values of
-      // the optional parameters that were not provided by
-      // [argumentsNodes]. So we iterate over [providedArguments] to fill
-      // in all the arguments.
-      for (int i = 1; i < compiledArguments.length; i++) {
-        if (compiledArguments[i] == null) {
-          compiledArguments[i] = providedArguments[argumentIndex++];
-        }
-      }
-      // The caller of [enterInlinedMethod] has ensured the selector
-      // matches the element.
-      assert(succeeded);
+  addInlinedInstantiation(DartType type) {
+    if (type != null) {
+      currentInlinedInstantiations.add(type);
     }
+  }
 
-    // Create the inlining state after evaluating the arguments, that
-    // may have an impact on the state of the current method.
+  removeInlinedInstantiation(DartType type) {
+    if (type != null) {
+      currentInlinedInstantiations.removeLast();
+    }
+  }
+
+  void setupInliningState(FunctionElement function,
+                          List<HInstruction> compiledArguments) {
     InliningState state = new InliningState(
         function, returnElement, returnType, elements, stack,
         localsHandler, inTryStatement);
-    inTryStatement = false;
+    inTryStatement = false; // TODO(lry): why? Document.
     LocalsHandler newLocalsHandler = new LocalsHandler(this);
     if (compiler.irBuilder.hasIr(function)) {
       // TODO(lry): handle ir functions with nested closure definitions.
@@ -1288,8 +1610,9 @@
           compiler.closureToClassMapper.computeClosureToClassMapping(
               function, function.parseNode(compiler), elements);
     }
+
     int argumentIndex = 0;
-    if (isInstanceMember) {
+    if (function.isInstanceMember()) {
       newLocalsHandler.updateLocal(newLocalsHandler.closureData.thisElement,
                                    compiledArguments[argumentIndex++]);
     }
@@ -1321,12 +1644,10 @@
     stack = <HInstruction>[];
     inliningStack.add(state);
     localsHandler = newLocalsHandler;
-    return state;
   }
 
-  void leaveInlinedMethod(InliningState state) {
-    InliningState poppedState = inliningStack.removeLast();
-    assert(state == poppedState);
+  void leaveInlinedMethod() {
+    InliningState state = inliningStack.removeLast();
     elements = state.oldElements;
     stack.add(localsHandler.readLocal(returnElement));
     returnElement = state.oldReturnElement;
@@ -1338,196 +1659,40 @@
     inTryStatement = state.inTryStatement;
   }
 
-  /**
-   * Try to inline [element] within the currect context of the
-   * builder. The insertion point is the state of the builder.
-   */
-  bool tryInlineMethod(Element element,
-                       Selector selector,
-                       List<HInstruction> providedArguments,
-                       Node currentNode,
-                       [DartType instantiatedType]) {
-    backend.registerStaticUse(element, compiler.enqueuer.codegen);
-
-    // Ensure that [element] is an implementation element.
-    element = element.implementation;
-    FunctionElement function = element;
-
-    bool insideLoop = loopNesting > 0 || graph.calledInLoop;
-
-    // Bail out early if the inlining decision is in the cache and we can't
-    // inline (no need to check the hard constraints).
-    bool cachedCanBeInlined =
-        backend.inlineCache.canInline(function, insideLoop: insideLoop);
-    if (cachedCanBeInlined == false) return false;
-
-    bool meetsHardConstraints() {
-      // We cannot inline a method from a deferred library into a method
-      // which isn't deferred.
-      // TODO(ahe): But we should still inline into the same
-      // connected-component of the deferred library.
-      if (compiler.deferredLoadTask.isDeferred(element)) return false;
-      if (compiler.disableInlining) return false;
-
-      assert(selector != null
-             || Elements.isStaticOrTopLevel(element)
-             || element.isGenerativeConstructorBody());
-      if (selector != null && !selector.applies(function, compiler)) {
-        return false;
-      }
-
-      // Don't inline operator== methods if the parameter can be null.
-      if (element.name == '==') {
-        if (element.getEnclosingClass() != compiler.objectClass
-            && providedArguments[1].canBeNull()) {
-          return false;
-        }
-      }
-
-      // Generative constructors of native classes should not be called directly
-      // and have an extra argument that causes problems with inlining.
-      if (element.isGenerativeConstructor()
-          && Elements.isNativeOrExtendsNative(element.getEnclosingClass())) {
-        return false;
-      }
-
-      // A generative constructor body is not seen by global analysis,
-      // so we should not query for its type.
-      if (!element.isGenerativeConstructorBody()) {
-        // Don't inline if the return type was inferred to be non-null empty.
-        // This means that the function always throws an exception.
-        TypeMask returnType =
-            compiler.typesTask.getGuaranteedReturnTypeOfElement(element);
-        if (returnType != null
-            && returnType.isEmpty
-            && !returnType.isNullable) {
-          isReachable = false;
-          return false;
-        }
-      }
-
-      return true;
-    }
-
-    bool heuristicSayGoodToGo(bool canBeInlined(int maxNodes, bool useMax)) {
-      // Don't inline recursivly
-      if (inliningStack.any((entry) => entry.function == function)) {
-        return false;
-      }
-
-      if (element.isSynthesized) return true;
-
-      if (cachedCanBeInlined == true) return cachedCanBeInlined;
-
-      if (inThrowExpression) return false;
-
-      int numParameters = function.functionSignature.parameterCount;
-      int maxInliningNodes;
-      bool useMaxInliningNodes = true;
-      if (insideLoop) {
-        maxInliningNodes = InlineWeeder.INLINING_NODES_INSIDE_LOOP +
-            InlineWeeder.INLINING_NODES_INSIDE_LOOP_ARG_FACTOR * numParameters;
-      } else {
-        maxInliningNodes = InlineWeeder.INLINING_NODES_OUTSIDE_LOOP +
-            InlineWeeder.INLINING_NODES_OUTSIDE_LOOP_ARG_FACTOR * numParameters;
-      }
-
-      // If a method is called only once, and all the methods in the
-      // inlining stack are called only once as well, we know we will
-      // save on output size by inlining this method.
-      TypesInferrer inferrer = compiler.typesTask.typesInferrer;
-      if (inferrer.isCalledOnce(element)
-          && (inliningStack.every(
-                  (entry) => inferrer.isCalledOnce(entry.function)))) {
-        useMaxInliningNodes = false;
-      }
-      bool canInline = canBeInlined(maxInliningNodes, useMaxInliningNodes);
-      if (canInline) {
-        backend.inlineCache.markAsInlinable(element, insideLoop: insideLoop);
-      } else {
-        backend.inlineCache.markAsNonInlinable(element, insideLoop: insideLoop);
-      }
-      return canInline;
-    }
-
-    void doInlining(void visitBody()) {
-      // Add an explicit null check on the receiver before doing the
-      // inlining. We use [element] to get the same name in the
-      // NoSuchMethodError message as if we had called it.
-      if (element.isInstanceMember()
-          && !element.isGenerativeConstructorBody()
-          && (selector.mask == null || selector.mask.isNullable)) {
-        addWithPosition(
-            new HFieldGet(null, providedArguments[0], backend.dynamicType,
-                          isAssignable: false),
-            currentNode);
-      }
-      InliningState state = enterInlinedMethod(
-          function, selector, providedArguments, currentNode);
-
-      inlinedFrom(element, () {
-        FunctionElement function = element;
-        FunctionSignature signature = function.computeSignature(compiler);
-        signature.orderedForEachParameter((Element parameter) {
-          HInstruction argument = localsHandler.readLocal(parameter);
-          potentiallyCheckType(argument, parameter.computeType(compiler));
-        });
-        addInlinedInstantiation(instantiatedType);
-        if (element.isGenerativeConstructor()) {
-          buildFactory(element);
-        } else {
-          visitBody();
-        }
-        removeInlinedInstantiation(instantiatedType);
-      });
-      leaveInlinedMethod(state);
-    }
-
-    if (meetsHardConstraints()) {
-      if (compiler.irBuilder.hasIr(function)) {
-        IrFunction irFunction = compiler.irBuilder.getIr(function);
-        bool canInline(int n, bool b) {
-          return IrInlineWeeder.canBeInlined(irFunction, n, b);
-        }
-        if (heuristicSayGoodToGo(canInline)) {
-          SsaFromIrInliner irInliner = new SsaFromIrInliner(this);
-          doInlining(() => irInliner.visitAll(irFunction.statements));
-          return true;
-        }
-      } else {
-        FunctionExpression functionNode = function.parseNode(compiler);
-        bool canInline(int n, bool b) {
-          return InlineWeeder.canBeInlined(functionNode, n, b);
-        }
-        if (heuristicSayGoodToGo(canInline)) {
-          doInlining(() => functionNode.body.accept(this));
-          return true;
-        }
-      }
-    }
-
-    return false;
-  }
-
-  addInlinedInstantiation(DartType type) {
-    if (type != null) {
-      currentInlinedInstantiations.add(type);
+  void doInline(FunctionElement function) {
+    if (function.isGenerativeConstructor()) {
+      // TODO(lry): inline constructors in IR.
+      assert(!compiler.irBuilder.hasIr(function));
+      buildFactory(function);
+    } else if (compiler.irBuilder.hasIr(function)) {
+      IrFunction irFunction = compiler.irBuilder.getIr(function);
+      SsaFromIrInliner irInliner = new SsaFromIrInliner(this);
+      irInliner.visitAll(irFunction.statements);
+      // The [IrInliner] does not push the final instruction on the [stack].
+      // In a way, this violates the invariant of the [SsaBuilder], however
+      // it works just fine because [leaveInlinedMethod] will restore the
+      // stack of the callee and push the value of the [returnElement].
+    } else {
+      FunctionExpression functionNode = function.parseNode(compiler);
+      functionNode.body.accept(this);
     }
   }
 
-  removeInlinedInstantiation(DartType type) {
-    if (type != null) {
-      currentInlinedInstantiations.removeLast();
-    }
+  bool providedArgumentsKnownToBeComplete(Node currentNode) {
+    /* When inlining the iterator methods generated for a [:for-in:] loop, the
+     * [currentNode] is the [ForIn] tree. The compiler-generated iterator
+     * invocations are known to have fully specified argument lists, no default
+     * arguments are used. See invocations of [pushInvokeDynamic] in
+     * [visitForIn].
+     */
+    return currentNode.asForIn() != null;
   }
 
-  inlinedFrom(Element element, f()) {
-    assert(element is FunctionElement || element is VariableElement);
-    return compiler.withCurrentElement(element, () {
-      sourceElementStack.add(element);
-      var result = f();
-      sourceElementStack.removeLast();
-      return result;
+  void potentiallyCheckInlinedParameterTypes(FunctionElement function) {
+    FunctionSignature signature = function.computeSignature(compiler);
+    signature.orderedForEachParameter((Element parameter) {
+      HInstruction argument = localsHandler.readLocal(parameter);
+      potentiallyCheckType(argument, parameter.computeType(compiler));
     });
   }
 
@@ -2073,27 +2238,16 @@
       return new HTypeConversion.withTypeRepresentation(type, kind, subtype,
           original, typeVariable);
     } else if (type.kind == TypeKind.FUNCTION) {
-      if (backend.rti.isSimpleFunctionType(type)) {
-        return original.convertType(compiler, type, kind);
-      }
-      TypeMask subtype = original.instructionType;
-      if (type.containsTypeVariables) {
-        bool contextIsTypeArguments = false;
-        HInstruction context;
-        if (!currentElement.enclosingElement.isClosure()
-            && currentElement.isInstanceMember()) {
-          context = localsHandler.readThis();
-        } else {
-          ClassElement contextClass = Types.getClassContext(type);
-          context = buildTypeVariableList(contextClass);
-          add(context);
-          contextIsTypeArguments = true;
-        }
-        return new HTypeConversion.withContext(type, kind, subtype,
-            original, context, contextIsTypeArguments: contextIsTypeArguments);
-      } else {
-        return new HTypeConversion(type, kind, subtype, original);
-      }
+      String name = kind == HTypeConversion.CAST_TYPE_CHECK
+          ? '_asCheck' : '_assertCheck';
+
+      List arguments = [buildFunctionType(type), original];
+      pushInvokeDynamic(
+          null,
+          new Selector.call(name, compiler.jsHelperLibrary, 1),
+          arguments);
+
+      return new HTypeConversion(type, kind, original.instructionType, pop());
     } else {
       return original.convertType(compiler, type, kind);
     }
@@ -2130,10 +2284,6 @@
     return graph;
   }
 
-  void addWithPosition(HInstruction instruction, Node node) {
-    add(attachPosition(instruction, node));
-  }
-
   void push(HInstruction instruction) {
     add(instruction);
     stack.add(instruction);
@@ -2165,7 +2315,9 @@
   }
 
   HInstruction attachPosition(HInstruction target, Node node) {
-    target.sourcePosition = sourceFileLocationForBeginToken(node);
+    if (node != null) {
+      target.sourcePosition = sourceFileLocationForBeginToken(node);
+    }
     return target;
   }
 
@@ -2176,22 +2328,10 @@
       sourceFileLocationForToken(node, node.getEndToken());
 
   SourceFileLocation sourceFileLocationForToken(Node node, Token token) {
-    Element element = sourceElementStack.last;
-    // TODO(johnniwinther): remove the 'element.patch' hack.
-    if (element is FunctionElement) {
-      FunctionElement functionElement = element;
-      if (functionElement.patch != null) element = functionElement.patch;
-    }
-    Script script = element.getCompilationUnit().script;
-    SourceFile sourceFile = script.file;
+    SourceFile sourceFile = currentSourceFile();
     SourceFileLocation location =
         new TokenSourceFileLocation(sourceFile, token);
-    if (!location.isValid()) {
-      throw MessageKind.INVALID_SOURCE_FILE_LOCATION.message(
-          {'offset': token.charOffset,
-           'fileName': sourceFile.filename,
-           'length': sourceFile.length});
-    }
+    checkValidSourceFileLocation(location, sourceFile, token.charOffset);
     return location;
   }
 
@@ -3058,61 +3198,14 @@
     push(instruction);
   }
 
-  HLiteralList buildTypeVariableList(ClassElement contextClass) {
-    List<HInstruction> inputs = <HInstruction>[];
-    for (Link<DartType> link = contextClass.typeVariables;
-        !link.isEmpty;
-        link = link.tail) {
-      inputs.add(addTypeVariableReference(link.head));
-    }
-    return buildLiteralList(inputs);
-  }
-
   HInstruction buildIsNode(Node node, DartType type, HInstruction expression) {
     type = type.unalias(compiler);
     if (type.kind == TypeKind.FUNCTION) {
-      if (backend.rti.isSimpleFunctionType(type)) {
-        // TODO(johnniwinther): Avoid interceptor if unneeded.
-        return new HIs.raw(
-            type, expression, invokeInterceptor(expression), backend.boolType);
-      }
-      Element checkFunctionSubtype = backend.getCheckFunctionSubtype();
-
-      HInstruction signatureName = graph.addConstantString(
-          new DartString.literal(backend.namer.getFunctionTypeName(type)),
-          compiler);
-
-      HInstruction contextName;
-      HInstruction context;
-      HInstruction typeArguments;
-      if (type.containsTypeVariables) {
-        ClassElement contextClass = Types.getClassContext(type);
-        contextName = graph.addConstantString(
-            new DartString.literal(backend.namer.getNameOfClass(contextClass)),
-            compiler);
-        if (!currentElement.enclosingElement.isClosure()
-            && currentElement.isInstanceMember()) {
-          context = localsHandler.readThis();
-          typeArguments = graph.addConstantNull(compiler);
-        } else {
-          context = graph.addConstantNull(compiler);
-          typeArguments = buildTypeVariableList(contextClass);
-          add(typeArguments);
-        }
-      } else {
-        contextName = graph.addConstantNull(compiler);
-        context = graph.addConstantNull(compiler);
-        typeArguments = graph.addConstantNull(compiler);
-      }
-
-      List<HInstruction> inputs = <HInstruction>[expression,
-                                                 signatureName,
-                                                 contextName,
-                                                 context,
-                                                 typeArguments];
-      pushInvokeStatic(node, checkFunctionSubtype, inputs, backend.boolType);
-      HInstruction call = pop();
-      return new HIs.compound(type, expression, call, backend.boolType);
+      List arguments = [buildFunctionType(type), expression];
+      pushInvokeDynamic(
+          node, new Selector.call('_isTest', compiler.jsHelperLibrary, 1),
+          arguments);
+      return new HIs.compound(type, expression, pop(), backend.boolType);
     } else if (type.kind == TypeKind.TYPE_VARIABLE) {
       HInstruction runtimeType = addTypeVariableReference(type);
       Element helper = backend.getCheckSubtypeOfRuntimeType();
@@ -3154,6 +3247,11 @@
     }
   }
 
+  HInstruction buildFunctionType(FunctionType type) {
+    type.accept(new TypeBuilder(), this);
+    return pop();
+  }
+
   void addDynamicSendArgumentsToList(Send node, List<HInstruction> list) {
     Selector selector = elements.getSelector(node);
     if (selector.namedArgumentCount == 0) {
@@ -3189,14 +3287,6 @@
     }
   }
 
-  HInstruction handleConstantForOptionalParameter(Element parameter) {
-    Constant constant =
-        compiler.constantHandler.getConstantForVariable(parameter);
-    assert(invariant(parameter, constant != null,
-        message: 'No constant computed for $parameter'));
-    return graph.addConstant(constant, compiler);
-  }
-
   /**
    * Returns true if the arguments were compatible with the function signature.
    *
@@ -3598,7 +3688,7 @@
 
   visitSend(Send node) {
     Element element = elements[node];
-    if (element != null && identical(element, currentElement)) {
+    if (element != null && identical(element, sourceElement)) {
       graph.isRecursiveMethod = true;
     }
     super.visitSend(node);
@@ -3659,7 +3749,7 @@
    */
   HInstruction readTypeVariable(ClassElement cls,
                                 TypeVariableElement variable) {
-    assert(currentElement.isInstanceMember());
+    assert(sourceElement.isInstanceMember());
 
     HInstruction target = localsHandler.readThis();
     HConstant index = graph.addConstantInt(
@@ -3697,7 +3787,7 @@
    * Helper to create an instruction that gets the value of a type variable.
    */
   HInstruction addTypeVariableReference(TypeVariableType type) {
-    Element member = currentElement;
+    Element member = sourceElement;
     bool isClosure = member.enclosingElement.isClosure();
     if (isClosure) {
       ClosureClassElement closureClass = member.enclosingElement;
@@ -3778,6 +3868,8 @@
     type.typeArguments.forEach((DartType argument) {
       inputs.add(analyzeTypeArgument(argument));
     });
+    // TODO(15489): Register at codegen.
+    compiler.enqueuer.codegen.registerInstantiatedType(type, elements);
     return callSetRuntimeTypeInfo(type.element, inputs, newObject);
   }
 
@@ -3823,13 +3915,13 @@
                   originalElement, send, compiler)) {
         isFixedList = true;
         TypeMask inferred =
-            TypeMaskFactory.inferredForNode(currentElement, send, compiler);
+            TypeMaskFactory.inferredForNode(sourceElement, send, compiler);
         return inferred.containsAll(compiler)
             ? backend.fixedArrayType
             : inferred;
       } else if (isGrowableListConstructorCall) {
         TypeMask inferred =
-            TypeMaskFactory.inferredForNode(currentElement, send, compiler);
+            TypeMaskFactory.inferredForNode(sourceElement, send, compiler);
         return inferred.containsAll(compiler)
             ? backend.extendableArrayType
             : inferred;
@@ -3837,7 +3929,7 @@
                     originalElement, compiler)) {
         isFixedList = true;
         TypeMask inferred =
-            TypeMaskFactory.inferredForNode(currentElement, send, compiler);
+            TypeMaskFactory.inferredForNode(sourceElement, send, compiler);
         ClassElement cls = element.getEnclosingClass();
         return inferred.containsAll(compiler)
             ? new TypeMask.nonNullExact(cls.thisType.element)
@@ -3929,10 +4021,8 @@
               code, backend.nullType, [stack.last], canThrow: true));
       }
     } else if (isGrowableListConstructorCall) {
-      js.Expression code = js.js.parseForeignJS('Array()');
-      var behavior = new native.NativeBehavior();
-      behavior.typesReturned.add(expectedType);
-      push(new HForeign(code, elementType, inputs, nativeBehavior: behavior));
+      push(buildLiteralList(<HInstruction>[]));
+      stack.last.instructionType = elementType;
     } else {
       ClassElement cls = constructor.getEnclosingClass();
       if (cls.isAbstract && constructor.isGenerativeConstructor()) {
@@ -4054,12 +4144,14 @@
       return;
     }
     if (element.isErroneous()) {
+      // An erroneous element indicates that the funciton could not be resolved
+      // (a warning has been issued).
       generateThrowNoSuchMethod(node,
                                 getTargetName(element),
                                 argumentNodes: node.arguments);
       return;
     }
-    compiler.ensure(!element.isGenerativeConstructor());
+    invariant(element, !element.isGenerativeConstructor());
     if (element.isFunction()) {
       var inputs = <HInstruction>[];
       // TODO(5347): Try to avoid the need for calling [implementation] before
@@ -4636,7 +4728,7 @@
     HInstruction value;
     if (node.isRedirectingFactoryBody) {
       FunctionElement element = elements[node.expression].implementation;
-      FunctionElement function = currentElement;
+      FunctionElement function = sourceElement;
       List<HInstruction> inputs = <HInstruction>[];
       FunctionSignature calleeSignature = element.functionSignature;
       FunctionSignature callerSignature = function.functionSignature;
@@ -4724,6 +4816,7 @@
     for (DartType argument in type.typeArguments) {
       arguments.add(analyzeTypeArgument(argument));
     }
+    // TODO(15489): Register at codegen.
     compiler.enqueuer.codegen.registerInstantiatedType(type, elements);
     return callSetRuntimeTypeInfo(type.element, arguments, object);
   }
@@ -4747,7 +4840,7 @@
     }
 
     TypeMask type =
-        TypeMaskFactory.inferredForNode(currentElement, node, compiler);
+        TypeMaskFactory.inferredForNode(sourceElement, node, compiler);
     if (!type.containsAll(compiler)) instruction.instructionType = type;
     stack.add(instruction);
   }
@@ -5360,7 +5453,7 @@
       // TODO(kasperl): Bad smell. We shouldn't be constructing elements here.
       // Note that the name of this element is irrelevant.
       Element element = new VariableElementX.synthetic('exception',
-          ElementKind.PARAMETER, currentElement);
+          ElementKind.PARAMETER, sourceElement);
       exception = new HLocalValue(element, backend.nonNullType);
       add(exception);
       HInstruction oldRethrowableException = rethrowableException;
@@ -5954,3 +6047,96 @@
     branch.blockInformation = conditionStartBlock.blockFlow;
   }
 }
+
+class TypeBuilder implements DartTypeVisitor<dynamic, SsaBuilder> {
+  void visitType(DartType type, _) {
+    throw 'Internal error $type';
+  }
+
+  void visitVoidType(VoidType type, SsaBuilder builder) {
+    ClassElement cls = builder.compiler.findHelper('VoidRuntimeType');
+    builder.push(new HVoidType(type, new TypeMask.exact(cls)));
+  }
+
+  void visitTypeVariableType(TypeVariableType type,
+                             SsaBuilder builder) {
+    ClassElement cls = builder.compiler.findHelper('RuntimeType');
+    TypeMask instructionType = new TypeMask.subclass(cls);
+    if (!builder.sourceElement.enclosingElement.isClosure() &&
+        builder.sourceElement.isInstanceMember()) {
+      HInstruction receiver = builder.localsHandler.readThis();
+      builder.push(new HReadTypeVariable(type, receiver, instructionType));
+    } else {
+      builder.push(
+          new HReadTypeVariable.noReceiver(
+              type, builder.addTypeVariableReference(type), instructionType));
+    }
+  }
+
+  void visitFunctionType(FunctionType type, SsaBuilder builder) {
+    type.returnType.accept(this, builder);
+    HInstruction returnType = builder.pop();
+    List<HInstruction> inputs = <HInstruction>[returnType];
+
+    for (DartType parameter in type.parameterTypes) {
+      parameter.accept(this, builder);
+      inputs.add(builder.pop());
+    }
+
+    for (DartType parameter in type.optionalParameterTypes) {
+      parameter.accept(this, builder);
+      inputs.add(builder.pop());
+    }
+
+    Link<DartType> namedParameterTypes = type.namedParameterTypes;
+    for (String name in type.namedParameters) {
+      DartString dartString = new DartString.literal(name);
+      inputs.add(
+          builder.graph.addConstantString(dartString, builder.compiler));
+      namedParameterTypes.head.accept(this, builder);
+      inputs.add(builder.pop());
+      namedParameterTypes = namedParameterTypes.tail;
+    }
+
+    ClassElement cls = builder.compiler.findHelper('RuntimeFunctionType');
+    builder.push(new HFunctionType(inputs, type, new TypeMask.exact(cls)));
+  }
+
+  void visitMalformedType(MalformedType type, SsaBuilder builder) {
+    visitDynamicType(builder.compiler.types.dynamicType, builder);
+  }
+
+  void visitStatementType(StatementType type, SsaBuilder builder) {
+    throw 'not implemented visitStatementType($type)';
+  }
+
+  void visitGenericType(GenericType type, SsaBuilder builder) {
+    throw 'not implemented visitGenericType($type)';
+  }
+
+  void visitInterfaceType(InterfaceType type, SsaBuilder builder) {
+    List<HInstruction> inputs = <HInstruction>[];
+    for (DartType typeArgument in type.typeArguments) {
+      typeArgument.accept(this, builder);
+      inputs.add(builder.pop());
+    }
+    ClassElement cls;
+    if (type.typeArguments.isEmpty) {
+      cls = builder.compiler.findHelper('RuntimeTypePlain');
+    } else {
+      cls = builder.compiler.findHelper('RuntimeTypeGeneric');
+    }
+    builder.push(new HInterfaceType(inputs, type, new TypeMask.exact(cls)));
+  }
+
+  void visitTypedefType(TypedefType type, SsaBuilder builder) {
+    DartType unaliased = type.unalias(builder.compiler);
+    if (unaliased is TypedefType) throw 'unable to unalias $type';
+    unaliased.accept(this, builder);
+  }
+
+  void visitDynamicType(DynamicType type, SsaBuilder builder) {
+    ClassElement cls = builder.compiler.findHelper('DynamicRuntimeType');
+    builder.push(new HDynamicType(type, new TypeMask.exact(cls)));
+  }
+}
diff --git a/sdk/lib/_internal/compiler/implementation/ssa/codegen.dart b/sdk/lib/_internal/compiler/implementation/ssa/codegen.dart
index 50aabfc..4792747 100644
--- a/sdk/lib/_internal/compiler/implementation/ssa/codegen.dart
+++ b/sdk/lib/_internal/compiler/implementation/ssa/codegen.dart
@@ -1249,6 +1249,16 @@
   visitShiftLeft(HShiftLeft node)   => visitBitInvokeBinary(node, '<<');
   visitShiftRight(HShiftRight node) => visitBitInvokeBinary(node, '>>>');
 
+  visitTruncatingDivide(HTruncatingDivide node) {
+    assert(node.left.isUInt31(compiler));
+    assert(node.right.isPositiveInteger(compiler));
+    use(node.left);
+    js.Expression jsLeft = pop();
+    use(node.right);
+    push(new js.Binary('/', jsLeft, pop()), node);
+    push(new js.Binary('|', pop(), new js.LiteralNumber("0")), node);
+  }
+
   visitNegate(HNegate node)         => visitInvokeUnary(node, '-');
 
   visitLess(HLess node)                 => visitRelational(node, '<');
@@ -2524,7 +2534,6 @@
     world.registerIsCheck(type, work.resolutionTree);
 
     CheckedModeHelper helper;
-    FunctionElement helperElement;
     if (node.isBooleanConversionCheck) {
       helper =
           const CheckedModeHelper('boolConversionCheck');
@@ -2533,13 +2542,121 @@
           backend.getCheckedModeHelper(type, typeCast: node.isCastTypeCheck);
     }
 
-    push(helper.generateCall(this, node));
+    if (helper == null) {
+      assert(type.kind == TypeKind.FUNCTION);
+      use(node.inputs[0]);
+    } else {
+      push(helper.generateCall(this, node));
+    }
   }
 
   void visitTypeKnown(HTypeKnown node) {
     // [HTypeKnown] instructions are removed before generating code.
     assert(false);
   }
+
+  void visitFunctionType(HFunctionType node) {
+    FunctionType type = node.dartType;
+    int inputCount = 0;
+    use(node.inputs[inputCount++]);
+    js.Expression returnType = pop();
+
+    List<js.Expression> parameterTypes = <js.Expression>[];
+    for (var _ in type.parameterTypes) {
+      use(node.inputs[inputCount++]);
+      parameterTypes.add(pop());
+    }
+
+    List<js.Expression> optionalParameterTypes = <js.Expression>[];
+    for (var _ in type.optionalParameterTypes) {
+      use(node.inputs[inputCount++]);
+      optionalParameterTypes.add(pop());
+    }
+
+    List<js.Property> namedParameters = <js.Property>[];
+    for (var _ in type.namedParameters) {
+      use(node.inputs[inputCount++]);
+      js.Expression name = pop();
+      use(node.inputs[inputCount++]);
+      namedParameters.add(new js.Property(name, pop()));
+    }
+
+    if (namedParameters.isEmpty) {
+      var arguments = [returnType];
+      if (!parameterTypes.isEmpty || !optionalParameterTypes.isEmpty) {
+        arguments.add(new js.ArrayInitializer.from(parameterTypes));
+      }
+      if (!optionalParameterTypes.isEmpty) {
+        arguments.add(new js.ArrayInitializer.from(optionalParameterTypes));
+      }
+      push(accessHelper('buildFunctionType')(arguments));
+    } else {
+      var arguments = [
+          returnType,
+          new js.ArrayInitializer.from(parameterTypes),
+          new js.ObjectInitializer(namedParameters)];
+      push(accessHelper('buildNamedFunctionType')(arguments));
+    }
+  }
+
+  void visitReadTypeVariable(HReadTypeVariable node) {
+    TypeVariableElement element = node.dartType.element;
+    Element helperElement = compiler.findHelper('convertRtiToRuntimeType');
+    world.registerStaticUse(helperElement);
+
+    use(node.inputs[0]);
+    if (node.hasReceiver) {
+      if (backend.isInterceptorClass(element.getEnclosingClass())) {
+        int index = RuntimeTypes.getTypeVariableIndex(element);
+        js.Expression receiver = pop();
+        js.Expression helper = backend.namer.elementAccess(helperElement);
+        push(helper(js.js(r'#.$builtinTypeInfo && #.$builtinTypeInfo[#]',
+                          [receiver, receiver, js.js.toExpression(index)])));
+      } else {
+        backend.emitter.registerReadTypeVariable(element);
+        push(
+            js.js('#.${backend.namer.readTypeVariableName(element)}()', pop()));
+      }
+    } else {
+      push(
+          backend.namer.elementAccess(
+              compiler.findHelper('convertRtiToRuntimeType'))(pop()));
+    }
+  }
+
+  void visitInterfaceType(HInterfaceType node) {
+    List<js.Expression> typeArguments = <js.Expression>[];
+    for (HInstruction type in node.inputs) {
+      use(type);
+      typeArguments.add(pop());
+    }
+
+    ClassElement cls = node.dartType.element;
+    var arguments = [
+        backend.namer.elementAccess(backend.getImplementationClass(cls))];
+    if (!typeArguments.isEmpty) {
+      arguments.add(new js.ArrayInitializer.from(typeArguments));
+    }
+    push(accessHelper('buildInterfaceType')(arguments));
+  }
+
+  void visitVoidType(HVoidType node) {
+    push(accessHelper('getVoidRuntimeType')());
+  }
+
+  void visitDynamicType(HDynamicType node) {
+    push(accessHelper('getDynamicRuntimeType')());
+  }
+
+  js.PropertyAccess accessHelper(String name) {
+    Element helper = compiler.findHelper(name);
+    if (helper == null) {
+      // For mocked-up tests.
+      return js.js('(void 0).$name');
+    }
+    world.registerStaticUse(helper);
+    return backend.namer.elementAccess(helper);
+  }
 }
 
 String singleIdentityComparison(HInstruction left,
diff --git a/sdk/lib/_internal/compiler/implementation/ssa/from_ir_builder.dart b/sdk/lib/_internal/compiler/implementation/ssa/from_ir_builder.dart
index 4d97830..84b6a6c 100644
--- a/sdk/lib/_internal/compiler/implementation/ssa/from_ir_builder.dart
+++ b/sdk/lib/_internal/compiler/implementation/ssa/from_ir_builder.dart
@@ -5,14 +5,19 @@
 part of ssa;
 
 class SsaFromIrBuilderTask extends CompilerTask {
-  SsaFromIrBuilderTask(Compiler compiler) : super(compiler);
+  final JavaScriptBackend backend;
+
+  SsaFromIrBuilderTask(JavaScriptBackend backend)
+    : this.backend = backend,
+      super(backend.compiler);
 
   HGraph build(CodegenWorkItem work) {
     return measure(() {
       Element element = work.element.implementation;
       return compiler.withCurrentElement(element, () {
         HInstruction.idCounter = 0;
-        SsaFromIrBuilder builder = new SsaFromIrBuilder(compiler, element);
+
+        SsaFromIrBuilder builder = new SsaFromIrBuilder(backend, work);
 
         HGraph graph;
         ElementKind kind = element.kind;
@@ -42,28 +47,26 @@
 }
 
 /**
- * This builder generates SSA nodes for elements that have an IR representation.
- * It mixes in [SsaGraphBuilderMixin] to share functionality with the
- * [SsaBuilder] that creates SSA nodes from trees.
+ * This class contains code that is shared between [SsaFromIrBuilder] and
+ * [SsaFromIrInliner].
  */
-class SsaFromIrBuilder
-    extends IrNodesVisitor<HInstruction> with SsaGraphBuilderMixin {
-  final Compiler compiler;
-
-  final Element sourceElement;
-
-  SsaFromIrBuilder(this.compiler, this.sourceElement);
-
+abstract class SsaFromIrMixin implements SsaGraphBuilderMixin<IrNode> {
   /**
-   * Maps IR nodes ot the generated [HInstruction]. Because the IR is itself
+   * Maps IR expressions to the generated [HInstruction]. Because the IR is
    * in an SSA form, the arguments of an [IrNode] have already been visited
    * prior to the node. This map is used to obtain the corresponding generated
    * SSA node.
    */
-  final Map<IrNode, HInstruction> generated = new Map<IrNode, HInstruction>();
+  final Map<IrExpression, HInstruction> emitted =
+      new Map<IrExpression, HInstruction>();
 
-  HInstruction recordGenerated(IrNode irNode, HInstruction ssaNode) {
-    return generated[irNode] = ssaNode;
+  Compiler get compiler;
+
+  void emitReturn(HInstruction value, IrReturn node);
+
+  HInstruction addExpression(IrExpression irNode, HInstruction ssaNode) {
+    current.add(emitted[irNode] = ssaNode);
+    return ssaNode;
   }
 
   HInstruction attachPosition(HInstruction target, IrNode node) {
@@ -72,57 +75,122 @@
   }
 
   SourceFileLocation sourceFileLocation(IrNode node) {
-    Element element = sourceElement;
-    // TODO(johnniwinther): remove the 'element.patch' hack.
-    if (element is FunctionElement) {
-      FunctionElement functionElement = element;
-      if (functionElement.patch != null) element = functionElement.patch;
-    }
-    Script script = element.getCompilationUnit().script;
-    SourceFile sourceFile = script.file;
+    SourceFile sourceFile = currentSourceFile();
     SourceFileLocation location =
         new OffsetSourceFileLocation(sourceFile, node.offset, node.sourceName);
-    if (!location.isValid()) {
-      throw MessageKind.INVALID_SOURCE_FILE_LOCATION.message(
-          {'offset': node.offset,
-           'fileName': sourceFile.filename,
-           'length': sourceFile.length});
-    }
+    checkValidSourceFileLocation(location, sourceFile, node.offset);
     return location;
   }
 
+  void potentiallyCheckInlinedParameterTypes(FunctionElement function) {
+    // TODO(lry): in checked mode, generate code for parameter type checks.
+    assert(!compiler.enableTypeAssertions);
+  }
+
+  bool providedArgumentsKnownToBeComplete(IrNode currentNode) {
+    // See comment in [SsaBuilder.providedArgumentsKnownToBeComplete].
+    return false;
+  }
+
+  List<HInstruction> toInstructionList(List<IrNode> nodes) {
+    return nodes.map((e) => emitted[e]).toList(growable: false);
+  }
+
+  HInstruction createInvokeStatic(IrNode node,
+                                  Element element,
+                                  List<HInstruction> arguments,
+                                  [TypeMask type]) {
+//    TODO(lry): enable inlining when building from IR.
+//    if (tryInlineMethod(element, null, arguments, node)) {
+//      return emitted[node];
+//    }
+    if (type == null) {
+      type = TypeMaskFactory.inferredReturnTypeForElement(element, compiler);
+    }
+    bool targetCanThrow = !compiler.world.getCannotThrow(element);
+    HInvokeStatic instruction = new HInvokeStatic(
+        element.declaration, arguments, type, targetCanThrow: targetCanThrow);
+    instruction.sideEffects = compiler.world.getSideEffectsOfElement(element);
+    return attachPosition(instruction, node);
+  }
+
+  void visitIrConstant(IrConstant node) {
+    emitted[node] = graph.addConstant(node.value, compiler);
+  }
+
+  void visitIrInvokeStatic(IrInvokeStatic node) {
+    Element element = node.target;
+    assert(element.isFunction());
+    List<HInstruction> arguments = toInstructionList(node.arguments);
+    HInstruction instruction = createInvokeStatic(node, element, arguments);
+    addExpression(node, instruction);
+  }
+
+  void visitIrNode(IrNode node) {
+    compiler.internalError('Cannot build SSA from IR for $node');
+  }
+
+  void visitIrReturn(IrReturn node) {
+    assert(isReachable);
+    HInstruction value = emitted[node.value];
+    // TODO(lry): add code for dynamic type check.
+    // value = potentiallyCheckType(value, returnType);
+    emitReturn(value, node);
+  }
+}
+
+/**
+ * This builder generates SSA nodes for elements that have an IR representation.
+ * It mixes in [SsaGraphBuilderMixin] to share functionality with the
+ * [SsaBuilder] that creates SSA nodes from trees.
+ */
+class SsaFromIrBuilder extends IrNodesVisitor with
+    SsaGraphBuilderMixin<IrNode>,
+    SsaFromIrMixin,
+    SsaGraphBuilderFields<IrNode> {
+  final Compiler compiler;
+
+  final JavaScriptBackend backend;
+
+  SsaFromIrBuilder(JavaScriptBackend backend, CodegenWorkItem work)
+   : this.backend = backend,
+     this.compiler = backend.compiler {
+    sourceElementStack.add(work.element);
+  }
+
   HGraph buildMethod() {
-    graph.calledInLoop = compiler.world.isCalledInLoop(sourceElement);
+    FunctionElement functionElement = sourceElement.implementation;
+    graph.calledInLoop = compiler.world.isCalledInLoop(functionElement);
 
     open(graph.entry);
     HBasicBlock block = graph.addNewBlock();
     close(new HGoto()).addSuccessor(block);
     open(block);
 
-    IrFunction function = compiler.irBuilder.getIr(sourceElement);
+    IrFunction function = compiler.irBuilder.getIr(functionElement);
     visitAll(function.statements);
     if (!isAborted()) closeAndGotoExit(new HGoto());
     graph.finalize();
     return graph;
   }
 
-  HInstruction visitIrConstant(IrConstant node) {
-    return recordGenerated(node, graph.addConstant(node.value, compiler));
-  }
-
-  HInstruction visitIrReturn(IrReturn node) {
-    assert(isReachable);
-    HInstruction value = generated[node.value];
-    // TODO(lry): add code for dynamic type check.
-    // value = potentiallyCheckType(value, returnType);
+  void emitReturn(HInstruction value, IrReturn node) {
     closeAndGotoExit(attachPosition(new HReturn(value), node));
   }
 
-  HInstruction visitNode(IrNode node) {
-    abort(node);
+  void setupInliningState(FunctionElement function,
+                          List<HInstruction> compiledArguments) {
+    // TODO(lry): inlining when building from IR.
+    throw "setup inlining for $function";
   }
 
-  void abort(IrNode node) {
-    throw 'Cannot build SSA from IR for $node';
+  void leaveInlinedMethod() {
+    // TODO(lry): inlining when building from IR.
+    throw "leave inlining in ir";
+  }
+
+  void doInline(Element element) {
+    // TODO(lry): inlining when building from IR.
+    throw "inline ir in ir for $element";
   }
 }
diff --git a/sdk/lib/_internal/compiler/implementation/ssa/from_ir_inliner.dart b/sdk/lib/_internal/compiler/implementation/ssa/from_ir_inliner.dart
index 9a67f39..d802603 100644
--- a/sdk/lib/_internal/compiler/implementation/ssa/from_ir_inliner.dart
+++ b/sdk/lib/_internal/compiler/implementation/ssa/from_ir_inliner.dart
@@ -4,27 +4,65 @@
 
 part of ssa;
 
-class SsaFromIrInliner extends IrNodesVisitor {
-
+/**
+ * This class implements an [IrNodesVisitor] that inlines a function represented
+ * as IR into an [SsaBuilder].
+ */
+class SsaFromIrInliner
+    extends IrNodesVisitor with SsaGraphBuilderMixin<IrNode>, SsaFromIrMixin {
   final SsaBuilder builder;
 
   SsaFromIrInliner(this.builder);
 
-  final Map<IrNode, HInstruction> emitted = new Map<IrNode, HInstruction>();
-
   Compiler get compiler => builder.compiler;
 
-  void visitIrReturn(IrReturn node) {
-    HInstruction hValue = emitted[node.value];
-    builder.localsHandler.updateLocal(builder.returnElement, hValue);
+  JavaScriptBackend get backend => builder.backend;
+
+  Element get sourceElement => builder.sourceElementStack.last;
+
+  HGraph get graph => builder.graph;
+
+  HBasicBlock get current => builder.current;
+
+  void set current(HBasicBlock block) {
+    builder.current = block;
   }
 
-  void visitIrConstant(IrConstant node) {
-    emitted[node] = builder.graph.addConstant(node.value, compiler);
+  HBasicBlock get lastOpenedBlock => builder.lastOpenedBlock;
+
+  void set lastOpenedBlock(HBasicBlock block) {
+    builder.lastOpenedBlock = block;
   }
 
-  void visitNode(IrNode node) {
-    compiler.internalError('Unexpected IrNode $node');
+  bool get isReachable => builder.isReachable;
+
+  void set isReachable(bool value) {
+    builder.isReachable = value;
+  }
+
+  bool get inThrowExpression => builder.inThrowExpression;
+
+  int get loopNesting => builder.loopNesting;
+
+  List<InliningState> get inliningStack => builder.inliningStack;
+
+  List<Element> get sourceElementStack => builder.sourceElementStack;
+
+  void setupInliningState(FunctionElement function,
+                          List<HInstruction> compiledArguments) {
+    builder.setupInliningState(function, compiledArguments);
+  }
+
+  void leaveInlinedMethod() {
+    builder.leaveInlinedMethod();
+  }
+
+  void doInline(Element element) {
+    builder.doInline(element);
+  }
+
+  void emitReturn(HInstruction value, IrReturn node) {
+    builder.localsHandler.updateLocal(builder.returnElement, value);
   }
 }
 
@@ -57,7 +95,7 @@
     }
   }
 
-  void visitNode(IrNode node) {
+  void visitIrNode(IrNode node) {
     if (!registerNode()) return;
     if (seenReturn) {
       tooDifficult = true;
@@ -65,12 +103,11 @@
   }
 
   void visitIrReturn(IrReturn node) {
-    visitNode(node);
+    visitIrNode(node);
     seenReturn = true;
   }
 
   void visitIrFunction(IrFunction node) {
     tooDifficult = true;
   }
-
 }
\ No newline at end of file
diff --git a/sdk/lib/_internal/compiler/implementation/ssa/invoke_dynamic_specializers.dart b/sdk/lib/_internal/compiler/implementation/ssa/invoke_dynamic_specializers.dart
index 54827a9..daf4f1e 100644
--- a/sdk/lib/_internal/compiler/implementation/ssa/invoke_dynamic_specializers.dart
+++ b/sdk/lib/_internal/compiler/implementation/ssa/invoke_dynamic_specializers.dart
@@ -229,6 +229,18 @@
   }
 
   HInstruction newBuiltinVariant(HInvokeDynamic instruction, Compiler compiler);
+
+  Selector renameToOptimizedSelector(String name,
+                                     Selector selector,
+                                     Compiler compiler) {
+    if (selector.name == name) return selector;
+    return new TypedSelector(
+        selector.mask,
+        new Selector(SelectorKind.CALL,
+                     name,
+                     compiler.interceptorsLibrary,
+                     selector.argumentCount));
+  }
 }
 
 class AddSpecializer extends BinaryArithmeticSpecializer {
@@ -359,10 +371,38 @@
     return super.computeTypeFromInputTypes(instruction, compiler);
   }
 
+  bool isNotZero(HInstruction instruction, Compiler compiler) {
+    if (!instruction.isConstantInteger()) return false;
+    HConstant rightConstant = instruction;
+    IntConstant intConstant = rightConstant.constant;
+    int count = intConstant.value;
+    return count != 0;
+  }
+
+  HInstruction tryConvertToBuiltin(HInvokeDynamic instruction,
+                                   Compiler compiler) {
+    HInstruction left = instruction.inputs[1];
+    HInstruction right = instruction.inputs[2];
+    if (isBuiltin(instruction, compiler)) {
+      if (right.isPositiveInteger(compiler) && isNotZero(right, compiler)) {
+        if (left.isUInt31(compiler)) {
+          return newBuiltinVariant(instruction, compiler);
+        }
+        clearAllSideEffects(instruction);
+        // We can call _tdivFast because the rhs is a 32bit integer
+        // and not 0, nor -1.
+        instruction.selector = renameToOptimizedSelector(
+            '_tdivFast', instruction.selector, compiler);
+      }
+    }
+    return null;
+  }
+
   HInstruction newBuiltinVariant(HInvokeDynamic instruction,
                                  Compiler compiler) {
-    // Truncating divide does not have a JS equivalent.    
-    return null;
+    return new HTruncatingDivide(
+        instruction.inputs[1], instruction.inputs[2],
+        instruction.selector, computeTypeFromInputTypes(instruction, compiler));
   }
 }
 
@@ -415,6 +455,11 @@
       // the instruction does not have any side effect, and that it
       // can be GVN'ed.
       clearAllSideEffects(instruction);
+      Selector selector = instruction.selector;
+      if (isPositive(right, compiler)) {
+        instruction.selector = renameToOptimizedSelector(
+            '_shlPositive', instruction.selector, compiler);
+      }
     }
     return null;
   }
@@ -452,6 +497,16 @@
       // the instruction does not have any side effect, and that it
       // can be GVN'ed.
       clearAllSideEffects(instruction);
+      if (isPositive(right, compiler) && isPositive(left, compiler)) {
+        instruction.selector = renameToOptimizedSelector(
+            '_shrBothPositive', instruction.selector, compiler);
+      } else if (isPositive(left, compiler) && right.isNumber(compiler)) {
+        instruction.selector = renameToOptimizedSelector(
+            '_shrReceiverPositive', instruction.selector, compiler);
+      } else if (isPositive(right, compiler)) {
+        instruction.selector = renameToOptimizedSelector(
+            '_shrOtherPositive', instruction.selector, compiler);
+      }
     }
     return null;
   }
diff --git a/sdk/lib/_internal/compiler/implementation/ssa/nodes.dart b/sdk/lib/_internal/compiler/implementation/ssa/nodes.dart
index e13b16d..64b666c 100644
--- a/sdk/lib/_internal/compiler/implementation/ssa/nodes.dart
+++ b/sdk/lib/_internal/compiler/implementation/ssa/nodes.dart
@@ -65,9 +65,15 @@
   R visitThis(HThis node);
   R visitThrow(HThrow node);
   R visitThrowExpression(HThrowExpression node);
+  R visitTruncatingDivide(HTruncatingDivide node);
   R visitTry(HTry node);
   R visitTypeConversion(HTypeConversion node);
   R visitTypeKnown(HTypeKnown node);
+  R visitReadTypeVariable(HReadTypeVariable node);
+  R visitFunctionType(HFunctionType node);
+  R visitVoidType(HVoidType node);
+  R visitInterfaceType(HInterfaceType node);
+  R visitDynamicType(HDynamicType node);
 }
 
 abstract class HGraphVisitor {
@@ -326,10 +332,16 @@
   visitThis(HThis node) => visitParameterValue(node);
   visitThrow(HThrow node) => visitControlFlow(node);
   visitThrowExpression(HThrowExpression node) => visitInstruction(node);
+  visitTruncatingDivide(HTruncatingDivide node) => visitBinaryArithmetic(node);
   visitTry(HTry node) => visitControlFlow(node);
   visitIs(HIs node) => visitInstruction(node);
   visitTypeConversion(HTypeConversion node) => visitCheck(node);
   visitTypeKnown(HTypeKnown node) => visitCheck(node);
+  visitReadTypeVariable(HReadTypeVariable node) => visitInstruction(node);
+  visitFunctionType(HFunctionType node) => visitInstruction(node);
+  visitVoidType(HVoidType node) => visitInstruction(node);
+  visitInterfaceType(HInterfaceType node) => visitInstruction(node);
+  visitDynamicType(HDynamicType node) => visitInstruction(node);
 }
 
 class SubGraph {
@@ -783,6 +795,12 @@
   static const int IS_TYPECODE = 28;
   static const int INVOKE_DYNAMIC_TYPECODE = 29;
   static const int SHIFT_RIGHT_TYPECODE = 30;
+  static const int READ_TYPE_VARIABLE_TYPECODE = 31;
+  static const int FUNCTION_TYPE_TYPECODE = 32;
+  static const int VOID_TYPE_TYPECODE = 33;
+  static const int INTERFACE_TYPE_TYPECODE = 34;
+  static const int DYNAMIC_TYPE_TYPECODE = 35;
+  static const int TRUNCATING_DIVIDE_TYPECODE = 36;
 
   HInstruction(this.inputs, this.instructionType)
       : id = idCounter++, usedBy = <HInstruction>[] {
@@ -966,7 +984,7 @@
   }
 
   /**
-   * Type of the unstruction.
+   * Type of the instruction.
    */
   TypeMask instructionType;
 
@@ -1664,6 +1682,18 @@
   bool dataEquals(HInstruction other) => true;
 }
 
+class HTruncatingDivide extends HBinaryArithmetic {
+  HTruncatingDivide(left, right, selector, type)
+      : super(left, right, selector, type);
+  accept(HVisitor visitor) => visitor.visitTruncatingDivide(this);
+
+  BinaryOperation operation(ConstantSystem constantSystem)
+      => constantSystem.truncatingDivide;
+  int typeCode() => HInstruction.TRUNCATING_DIVIDE_TYPECODE;
+  bool typeEquals(other) => other is HTruncatingDivide;
+  bool dataEquals(HInstruction other) => true;
+}
+
 /**
  * An [HSwitch] instruction has one input for the incoming
  * value, and one input per constant that it can switch on.
@@ -2747,8 +2777,6 @@
     visitor.visitTryInfo(this);
 }
 
-
-
 class HSwitchBlockInformation implements HStatementInformation {
   final HExpressionInformation expression;
   final List<HStatementInformation> statements;
@@ -2770,3 +2798,111 @@
   bool accept(HStatementInformationVisitor visitor) =>
       visitor.visitSwitchInfo(this);
 }
+
+class HReadTypeVariable extends HInstruction {
+  /// The type variable being read.
+  final TypeVariableType dartType;
+
+  final bool hasReceiver;
+
+  HReadTypeVariable(this.dartType,
+                    HInstruction receiver,
+                    TypeMask instructionType)
+      : hasReceiver = true,
+        super(<HInstruction>[receiver], instructionType) {
+    setUseGvn();
+  }
+
+  HReadTypeVariable.noReceiver(this.dartType,
+                               HInstruction typeArgument,
+                               TypeMask instructionType)
+      : hasReceiver = false,
+        super(<HInstruction>[typeArgument], instructionType) {
+    setUseGvn();
+  }
+
+  accept(HVisitor visitor) => visitor.visitReadTypeVariable(this);
+
+  bool canThrow() => false;
+
+  int typeCode() => HInstruction.READ_TYPE_VARIABLE_TYPECODE;
+  bool typeEquals(HInstruction other) => other is HReadTypeVariable;
+
+  bool dataEquals(HReadTypeVariable other) {
+    return dartType.element == other.dartType.element
+        && hasReceiver == other.hasReceiver;
+  }
+}
+
+abstract class HRuntimeType extends HInstruction {
+  final DartType dartType;
+
+  HRuntimeType(List<HInstruction> inputs,
+               this.dartType,
+               TypeMask instructionType)
+      : super(inputs, instructionType) {
+    setUseGvn();
+  }
+
+  bool canThrow() => false;
+
+  int typeCode() {
+    throw 'abstract method';
+  }
+
+  bool typeEquals(HInstruction other) {
+    throw 'abstract method';
+  }
+
+  bool dataEquals(HRuntimeType other) {
+    return dartType == other.dartType;
+  }
+}
+
+class HFunctionType extends HRuntimeType {
+  HFunctionType(List<HInstruction> inputs,
+                FunctionType dartType,
+                TypeMask instructionType)
+      : super(inputs, dartType, instructionType);
+
+  accept(HVisitor visitor) => visitor.visitFunctionType(this);
+
+  int typeCode() => HInstruction.FUNCTION_TYPE_TYPECODE;
+
+  bool typeEquals(HInstruction other) => other is HFunctionType;
+}
+
+class HVoidType extends HRuntimeType {
+  HVoidType(VoidType dartType, TypeMask instructionType)
+      : super(const <HInstruction>[], dartType, instructionType);
+
+  accept(HVisitor visitor) => visitor.visitVoidType(this);
+
+  int typeCode() => HInstruction.VOID_TYPE_TYPECODE;
+
+  bool typeEquals(HInstruction other) => other is HVoidType;
+}
+
+class HInterfaceType extends HRuntimeType {
+  HInterfaceType(List<HInstruction> inputs,
+                 InterfaceType dartType,
+                 TypeMask instructionType)
+      : super(inputs, dartType, instructionType);
+
+  accept(HVisitor visitor) => visitor.visitInterfaceType(this);
+
+  int typeCode() => HInstruction.INTERFACE_TYPE_TYPECODE;
+
+  bool typeEquals(HInstruction other) => other is HInterfaceType;
+}
+
+class HDynamicType extends HRuntimeType {
+  HDynamicType(DynamicType dartType, TypeMask instructionType)
+      : super(const <HInstruction>[], dartType, instructionType);
+
+  accept(HVisitor visitor) => visitor.visitDynamicType(this);
+
+  int typeCode() => HInstruction.DYNAMIC_TYPE_TYPECODE;
+
+  bool typeEquals(HInstruction other) => other is HDynamicType;
+}
diff --git a/sdk/lib/_internal/compiler/implementation/ssa/optimize.dart b/sdk/lib/_internal/compiler/implementation/ssa/optimize.dart
index 89ec2e7..6b8eaaf 100644
--- a/sdk/lib/_internal/compiler/implementation/ssa/optimize.dart
+++ b/sdk/lib/_internal/compiler/implementation/ssa/optimize.dart
@@ -1448,9 +1448,13 @@
       }
       if (!canBeMoved) continue;
 
-      // This is safe because we are running after GVN.
-      // TODO(ngeoffray): ensure GVN has been run.
-      set_.add(current);
+      HInstruction existing = set_.lookup(current);
+      if (existing == null) {
+        set_.add(current);
+      } else {
+        block.rewriteWithBetterUser(current, existing);
+        block.remove(current);
+      }
     }
   }
 }
@@ -1533,12 +1537,24 @@
 
   SsaLoadElimination(this.compiler);
 
-  visitGraph(HGraph graph) {
+  void visitGraph(HGraph graph) {
     memories = new List<MemorySet>(graph.blocks.length);
-    visitDominatorTree(graph);
+    List<HBasicBlock> blocks = graph.blocks;
+    for (int i = 0; i < blocks.length; i++) {
+      HBasicBlock block = blocks[i];
+      visitBasicBlock(block);
+      if (block.successors.isNotEmpty && block.successors[0].isLoopHeader()) {
+        // We've reached the ending block of a loop. Iterate over the
+        // blocks of the loop again to take values that flow from that
+        // ending block into account.
+        for (int j = block.successors[0].id; j <= block.id; j++) {
+          visitBasicBlock(blocks[j]);
+        }
+      }
+    }
   }
 
-  visitBasicBlock(HBasicBlock block) {
+  void visitBasicBlock(HBasicBlock block) {
     if (block.predecessors.length == 0) {
       // Entry block.
       memorySet = new MemorySet(compiler);
@@ -1550,9 +1566,6 @@
       // `block.predecessors[0]` again, we can just re-use its
       // [memorySet].
       memorySet = memories[block.predecessors[0].id];
-    } else if (block.isLoopHeader()) {
-      // We currently do not handle loops.
-      memorySet = new MemorySet(compiler);
     } else if (block.predecessors.length == 1) {
       // Clone the memorySet of the predecessor, because it is also used
       // by other successors of it.
@@ -1565,6 +1578,7 @@
           memories[block.predecessors[i].id], block, i);
       }
     }
+
     memories[block.id] = memorySet;
     HInstruction instruction = block.first;
     while (instruction != null) {
@@ -1880,6 +1894,8 @@
                             HBasicBlock block,
                             int predecessorIndex) {
     MemorySet result = new MemorySet(compiler);
+    if (other == null) return result;
+
     fieldValues.forEach((element, values) {
       var otherValues = other.fieldValues[element];
       if (otherValues == null) return;
diff --git a/sdk/lib/_internal/compiler/implementation/ssa/tracer.dart b/sdk/lib/_internal/compiler/implementation/ssa/tracer.dart
index b56cd35..7b85b8c 100644
--- a/sdk/lib/_internal/compiler/implementation/ssa/tracer.dart
+++ b/sdk/lib/_internal/compiler/implementation/ssa/tracer.dart
@@ -478,6 +478,10 @@
     return "ThrowExpression ${temporaryId(node.inputs[0])}";
   }
 
+  String visitTruncatingDivide(HTruncatingDivide node) {
+    return handleInvokeBinary(node, '~/');
+  }
+
   String visitExitTry(HExitTry node) {
     return "Exit try";
   }
@@ -521,4 +525,24 @@
   String visitRangeConversion(HRangeConversion node) {
     return "RangeConversion: ${node.checkedInput}";
   }
+
+  String visitReadTypeVariable(HReadTypeVariable node) {
+    return "ReadTypeVariable: ${node.dartType} ${node.hasReceiver}";
+  }
+
+  String visitFunctionType(HFunctionType node) {
+    return "FunctionType: ${node.dartType}";
+  }
+
+  String visitVoidType(HVoidType node) {
+    return "VoidType";
+  }
+
+  String visitInterfaceType(HInterfaceType node) {
+    return "InterfaceType: ${node.dartType}";
+  }
+
+  String visitDynamicType(HDynamicType node) {
+    return "DynamicType";
+  }
 }
diff --git a/sdk/lib/_internal/compiler/implementation/typechecker.dart b/sdk/lib/_internal/compiler/implementation/typechecker.dart
index a14859b..5dd026a 100644
--- a/sdk/lib/_internal/compiler/implementation/typechecker.dart
+++ b/sdk/lib/_internal/compiler/implementation/typechecker.dart
@@ -623,7 +623,7 @@
     if (receiverType.treatAsDynamic) {
       return const DynamicAccess();
     }
-    Member getMember(DartType type) {
+    InterfaceType computeInterfaceType(DartType type) {
       DartType originalType = type;
       while (identical(type.kind, TypeKind.TYPE_VARIABLE)) {
         TypeVariableType variable = type;
@@ -639,7 +639,10 @@
       }
       assert(invariant(node, type.kind == TypeKind.INTERFACE,
           message: "unexpected type kind ${type.kind}."));
-      InterfaceType interface = type;
+      return type;
+    }
+    Member getMember(DartType type) {
+      InterfaceType interface = computeInterfaceType(type);
       return interface.lookupMember(name,
           isSetter: identical(memberKind, MemberKind.SETTER));
     }
@@ -663,23 +666,26 @@
         }
       }
     }
-    switch (memberKind) {
-      case MemberKind.METHOD:
-        reportTypeWarning(node, MessageKind.METHOD_NOT_FOUND,
-            {'className': receiverType.name, 'memberName': name});
-        break;
-      case MemberKind.OPERATOR:
-        reportTypeWarning(node, MessageKind.OPERATOR_NOT_FOUND,
-            {'className': receiverType.name, 'memberName': name});
-        break;
-      case MemberKind.GETTER:
-        reportTypeWarning(node, MessageKind.MEMBER_NOT_FOUND.warning,
-            {'className': receiverType.name, 'memberName': name});
-        break;
-      case MemberKind.SETTER:
-        reportTypeWarning(node, MessageKind.PROPERTY_NOT_FOUND,
-            {'className': receiverType.name, 'memberName': name});
-        break;
+    InterfaceType interface = computeInterfaceType(receiverType);
+    if (!interface.element.isProxy) {
+      switch (memberKind) {
+        case MemberKind.METHOD:
+          reportTypeWarning(node, MessageKind.METHOD_NOT_FOUND,
+              {'className': receiverType.name, 'memberName': name});
+          break;
+        case MemberKind.OPERATOR:
+          reportTypeWarning(node, MessageKind.OPERATOR_NOT_FOUND,
+              {'className': receiverType.name, 'memberName': name});
+          break;
+        case MemberKind.GETTER:
+          reportTypeWarning(node, MessageKind.MEMBER_NOT_FOUND.warning,
+              {'className': receiverType.name, 'memberName': name});
+          break;
+        case MemberKind.SETTER:
+          reportTypeWarning(node, MessageKind.PROPERTY_NOT_FOUND,
+              {'className': receiverType.name, 'memberName': name});
+          break;
+      }
     }
     return const DynamicAccess();
   }
@@ -1447,7 +1453,8 @@
     for (Link<Node> link = node.definitions.nodes; !link.isEmpty;
          link = link.tail) {
       Node definition = link.head;
-      compiler.ensure(definition is Identifier || definition is SendSet);
+      invariant(definition, definition is Identifier || definition is SendSet,
+          message: 'expected identifier or initialization');
       if (definition is SendSet) {
         SendSet initialization = definition;
         DartType initializer = analyzeNonVoid(initialization.arguments.head);
diff --git a/sdk/lib/_internal/compiler/implementation/types/concrete_types_inferrer.dart b/sdk/lib/_internal/compiler/implementation/types/concrete_types_inferrer.dart
index 5e55fb5..5e3e8e3 100644
--- a/sdk/lib/_internal/compiler/implementation/types/concrete_types_inferrer.dart
+++ b/sdk/lib/_internal/compiler/implementation/types/concrete_types_inferrer.dart
@@ -1026,10 +1026,6 @@
     return result == const DynamicTypeMask() ? null : result;
   }
 
-  Iterable<TypeMask> get containerTypes {
-    throw new UnsupportedError("");
-  }
-
   void clear() {}
 
   bool isCalledOnce(Element element) {
diff --git a/sdk/lib/_internal/compiler/implementation/types/types.dart b/sdk/lib/_internal/compiler/implementation/types/types.dart
index 175f92f..a5c9a9a 100644
--- a/sdk/lib/_internal/compiler/implementation/types/types.dart
+++ b/sdk/lib/_internal/compiler/implementation/types/types.dart
@@ -28,7 +28,6 @@
   TypeMask getTypeOfElement(Element element);
   TypeMask getTypeOfNode(Element owner, Node node);
   TypeMask getTypeOfSelector(Selector selector);
-  Iterable<TypeMask> get containerTypes;
   void clear();
   bool isCalledOnce(Element element);
   bool isFixedArrayCheckedForGrowable(Node node);
@@ -400,7 +399,6 @@
 
   /**
    * Return the (inferred) guaranteed type of [selector] or null.
-   * [node] must be an AST node of [owner].
    */
   TypeMask getGuaranteedTypeOfSelector(Selector selector) {
     return measure(() {
diff --git a/sdk/lib/_internal/compiler/implementation/universe/universe.dart b/sdk/lib/_internal/compiler/implementation/universe/universe.dart
index 8e9d506..eed40c8 100644
--- a/sdk/lib/_internal/compiler/implementation/universe/universe.dart
+++ b/sdk/lib/_internal/compiler/implementation/universe/universe.dart
@@ -124,7 +124,7 @@
   // The numbers of arguments of the selector. Includes named arguments.
   final int argumentCount;
   final List<String> namedArguments;
-  final List<String> orderedNamedArguments;
+  final List<String> _orderedNamedArguments;
   final int hashCode;
 
   static const String INDEX_NAME ="[]";
@@ -136,7 +136,7 @@
                     this.library,
                     this.argumentCount,
                     this.namedArguments,
-                    this.orderedNamedArguments,
+                    this._orderedNamedArguments,
                     this.hashCode) {
     assert(kind == SelectorKind.INDEX
            || (name != INDEX_NAME && name != INDEX_SET_NAME));
@@ -186,15 +186,27 @@
   factory Selector.fromElement(Element element, Compiler compiler) {
     String name = element.name;
     if (element.isFunction()) {
-      int arity = element.asFunctionElement().requiredParameterCount(compiler);
       if (name == '[]') {
         return new Selector.index();
       } else if (name == '[]=') {
         return new Selector.indexSet();
-      } else if (Elements.operatorNameToIdentifier(name) != name) {
-        return new Selector(SelectorKind.OPERATOR, name, null, arity);
+      }
+      FunctionSignature signature =
+          element.asFunctionElement().computeSignature(compiler);
+      int arity = signature.parameterCount;
+      List<String> namedArguments = null;
+      if (signature.optionalParametersAreNamed) {
+        namedArguments =
+            signature.orderedOptionalParameters.map((e) => e.name).toList();
+      }
+      if (Elements.operatorNameToIdentifier(name) != name) {
+        // Operators cannot have named arguments, however, that doesn't prevent
+        // a user from declaring such an operator.
+        return new Selector(
+            SelectorKind.OPERATOR, name, null, arity, namedArguments);
       } else {
-        return new Selector.call(name, element.getLibrary(), arity);
+        return new Selector.call(
+            name, element.getLibrary(), arity, namedArguments);
       }
     } else if (element.isSetter()) {
       return new Selector.setter(name, element.getLibrary());
@@ -202,6 +214,9 @@
       return new Selector.getter(name, element.getLibrary());
     } else if (element.isField()) {
       return new Selector.getter(name, element.getLibrary());
+    } else {
+      throw new SpannableAssertionFailure(
+          element, "Can't get selector from $element");
     }
   }
 
@@ -557,13 +572,13 @@
 
   List<String> getOrderedNamedArguments() {
     if (namedArguments.isEmpty) return namedArguments;
-    if (!orderedNamedArguments.isEmpty) return orderedNamedArguments;
+    if (!_orderedNamedArguments.isEmpty) return _orderedNamedArguments;
 
-    orderedNamedArguments.addAll(namedArguments);
-    orderedNamedArguments.sort((String first, String second) {
+    _orderedNamedArguments.addAll(namedArguments);
+    _orderedNamedArguments.sort((String first, String second) {
       return first.compareTo(second);
     });
-    return orderedNamedArguments;
+    return _orderedNamedArguments;
   }
 
   String namedArgumentsToString() {
@@ -590,6 +605,8 @@
   Selector extendIfReachesAll(Compiler compiler) {
     return new TypedSelector(compiler.typesTask.dynamicType, this);
   }
+
+  Selector toCallSelector() => new Selector.callClosureFrom(this);
 }
 
 class TypedSelector extends Selector {
@@ -603,7 +620,7 @@
                        selector.library,
                        selector.argumentCount,
                        selector.namedArguments,
-                       selector.orderedNamedArguments,
+                       selector._orderedNamedArguments,
                        hashCode) {
     assert(mask != null);
     assert(asUntyped.mask == null);
diff --git a/sdk/lib/_internal/lib/core_patch.dart b/sdk/lib/_internal/lib/core_patch.dart
index de1c0c0..b4a7bd2 100644
--- a/sdk/lib/_internal/lib/core_patch.dart
+++ b/sdk/lib/_internal/lib/core_patch.dart
@@ -186,11 +186,16 @@
   patch static int _now() => Primitives.numMicroseconds();
 }
 
+class _ListConstructorSentinel extends JSInt {
+  const _ListConstructorSentinel();
+}
 
 // Patch for List implementation.
 patch class List<E> {
-  patch factory List([int length]) {
-    if (length == null) return new JSArray<E>.emptyGrowable();
+  patch factory List([int length = const _ListConstructorSentinel()]) {
+    if (length == const _ListConstructorSentinel()) {
+      return new JSArray<E>.emptyGrowable();
+    }
     return new JSArray<E>.fixed(length);
   }
 
diff --git a/sdk/lib/_internal/lib/io_patch.dart b/sdk/lib/_internal/lib/io_patch.dart
index bc87e41..2f3db18 100644
--- a/sdk/lib/_internal/lib/io_patch.dart
+++ b/sdk/lib/_internal/lib/io_patch.dart
@@ -293,6 +293,13 @@
   }
 }
 
+patch class RawDatagramSocket {
+  patch static Future<RawDatagramSocket> bind(
+      host, int port, {bool reuseAddress: true}) {
+    throw new UnsupportedError("RawDatagramSocket.bind");
+  }
+}
+
 patch class _SecureFilter {
   patch factory _SecureFilter() {
     throw new UnsupportedError("_SecureFilter._SecureFilter");
@@ -336,9 +343,15 @@
   patch int readByteSync() {
     throw new UnsupportedError("Stdin.readByteSync");
   }
+  patch bool get echoMode {
+    throw new UnsupportedError("Stdin.echoMode");
+  }
   patch void set echoMode(bool enabled) {
     throw new UnsupportedError("Stdin.echoMode");
   }
+  patch bool get lineMode {
+    throw new UnsupportedError("Stdin.lineMode");
+  }
   patch void set lineMode(bool enabled) {
     throw new UnsupportedError("Stdin.lineMode");
   }
diff --git a/sdk/lib/_internal/lib/isolate_helper.dart b/sdk/lib/_internal/lib/isolate_helper.dart
index 0ff3096..af5c9d5 100644
--- a/sdk/lib/_internal/lib/isolate_helper.dart
+++ b/sdk/lib/_internal/lib/isolate_helper.dart
@@ -8,6 +8,7 @@
 import 'dart:collection' show Queue, HashMap;
 import 'dart:isolate';
 import 'dart:_js_helper' show
+    Closure,
     Null,
     Primitives,
     convertDartClosureToJS;
@@ -20,7 +21,7 @@
                                    IsolateContext;
 import 'dart:_interceptors' show JSExtendableArray;
 
-ReceivePort lazyPort;
+ReceivePort controlPort;
 
 /**
  * Called by the compiler to support switching
@@ -222,19 +223,17 @@
 /** Context information tracked for each isolate. */
 class _IsolateContext implements IsolateContext {
   /** Current isolate id. */
-  int id;
+  final int id = _globalState.nextIsolateId++;
 
   /** Registry of receive ports currently active on this isolate. */
-  Map<int, RawReceivePortImpl> ports;
+  final Map<int, RawReceivePortImpl> ports = new Map<int, RawReceivePortImpl>();
+
+  /** Registry of weak receive ports currently active on this isolate. */
+  final Set<int> weakPorts = new Set<int>();
 
   /** Holds isolate globals (statics and top-level properties). */
-  var isolateStatics; // native object containing all globals of an isolate.
-
-  _IsolateContext() {
-    id = _globalState.nextIsolateId++;
-    ports = new Map<int, RawReceivePortImpl>();
-    isolateStatics = JS_CREATE_ISOLATE();
-  }
+  // native object containing all globals of an isolate.
+  final isolateStatics = JS_CREATE_ISOLATE();
 
   /**
    * Run [code] in the context of the isolate represented by [this].
@@ -257,24 +256,41 @@
     JS_SET_CURRENT_ISOLATE(isolateStatics);
   }
 
-  /** Lookup a port registered for this isolate. */
+  /** Looks up a port registered for this isolate. */
   RawReceivePortImpl lookup(int portId) => ports[portId];
 
-  /** Register a port on this isolate. */
+  /** Registers a port on this isolate. */
   void register(int portId, RawReceivePortImpl port)  {
     if (ports.containsKey(portId)) {
       throw new Exception("Registry: ports must be registered only once.");
     }
     ports[portId] = port;
-    _globalState.isolates[id] = this; // indicate this isolate is active
+    _updateGlobalState();
+  }
+
+  /**
+   * Registers a weak port on this isolate.
+   *
+   * The port does not keep the isolate active.
+   */
+  void registerWeak(int portId, RawReceivePortImpl port)  {
+    weakPorts.add(portId);
+    // 'register' updates the global state.
+    register(portId, port);
+  }
+
+  _updateGlobalState() {
+    if (ports.length - weakPorts.length > 0) {
+      _globalState.isolates[id] = this; // indicate this isolate is active
+    } else {
+      _globalState.isolates.remove(id); // indicate this isolate is not active
+    }
   }
 
   /** Unregister a port on this isolate. */
   void unregister(int portId) {
     ports.remove(portId);
-    if (ports.isEmpty) {
-      _globalState.isolates.remove(id); // indicate this isolate is not active
-    }
+    _updateGlobalState();
   }
 }
 
@@ -548,7 +564,7 @@
   }
 
   static _getJSFunctionFromName(String functionName) {
-    return JS("", "init.globalFunctions[#]", functionName);
+    return JS("", "init.globalFunctions[#]()", functionName);
   }
 
   /**
@@ -557,7 +573,7 @@
    * but you should probably not count on this.
    */
   static String _getJSFunctionName(Function f) {
-    return JS("String|Null", r"(#['$name'] || #)", f, null);
+    return (f is Closure) ? JS("String|Null", r'#.$name', f) : null;
   }
 
   /** Create a new JavaScript object instance given its constructor. */
@@ -565,7 +581,8 @@
     return JS("", "new #()", ctor);
   }
 
-  static SendPort spawnFunction(void topLevelFunction(message), message) {
+  static Future<SendPort> spawnFunction(void topLevelFunction(message),
+                                        message) {
     final name = _getJSFunctionName(topLevelFunction);
     if (name == null) {
       throw new UnsupportedError(
@@ -574,27 +591,25 @@
     return spawn(name, null, null, message, false, false);
   }
 
-  static SendPort spawnUri(Uri uri, List<String> args, message) {
+  static Future<SendPort> spawnUri(Uri uri, List<String> args, message) {
     return spawn(null, uri.toString(), args, message, false, true);
   }
 
   // TODO(sigmund): clean up above, after we make the new API the default:
 
   /// If [uri] is `null` it is replaced with the current script.
-  static SendPort spawn(String functionName, String uri,
-                        List<String> args, message,
-                        bool isLight, bool isSpawnUri) {
+  static Future<SendPort> spawn(String functionName, String uri,
+                                List<String> args, message,
+                                bool isLight, bool isSpawnUri) {
     // Assume that the compiled version of the Dart file lives just next to the
     // dart file.
     // TODO(floitsch): support precompiled version of dart2js output.
     if (uri != null && uri.endsWith(".dart")) uri += ".js";
 
-    Completer<SendPort> completer = new Completer<SendPort>.sync();
     ReceivePort port = new ReceivePort();
-    port.listen((msg) {
-      port.close();
+    Future<SendPort> result = port.first.then((msg) {
       assert(msg[0] == _SPAWNED_SIGNAL);
-      completer.complete(msg[1]);
+      return msg[1];
     });
 
     SendPort signalReply = port.sendPort;
@@ -605,8 +620,7 @@
       _startNonWorker(
           functionName, uri, args, message, isSpawnUri, signalReply);
     }
-    return new _BufferingSendPort(
-        _globalState.currentContext.id, completer.future);
+    return result;
   }
 
   static void _startWorker(
@@ -650,8 +664,9 @@
                             SendPort replyTo) {
     _IsolateContext context = JS_CURRENT_ISOLATE_CONTEXT();
     Primitives.initializeStatics(context.id);
-    lazyPort = new ReceivePort();
-    replyTo.send([_SPAWNED_SIGNAL, lazyPort.sendPort]);
+    // The isolate's port does not keep the isolate open.
+    controlPort = new ReceivePortImpl.weak();
+    replyTo.send([_SPAWNED_SIGNAL, controlPort.sendPort]);
     if (!isSpawnUri) {
       topLevel(message);
     } else if (topLevel is _MainFunctionArgsMessage) {
@@ -712,8 +727,7 @@
   void _checkReplyTo(SendPort replyTo) {
     if (replyTo != null
         && replyTo is! _NativeJsSendPort
-        && replyTo is! _WorkerSendPort
-        && replyTo is! _BufferingSendPort) {
+        && replyTo is! _WorkerSendPort) {
       throw new Exception("SendPort.send: Illegal replyTo port type");
     }
   }
@@ -730,34 +744,32 @@
   const _NativeJsSendPort(this._receivePort, int isolateId) : super(isolateId);
 
   void send(var message) {
-    _waitForPendingPorts(message, () {
-      // Check that the isolate still runs and the port is still open
-      final isolate = _globalState.isolates[_isolateId];
-      if (isolate == null) return;
-      if (_receivePort._isClosed) return;
+    // Check that the isolate still runs and the port is still open
+    final isolate = _globalState.isolates[_isolateId];
+    if (isolate == null) return;
+    if (_receivePort._isClosed) return;
 
-      // We force serialization/deserialization as a simple way to ensure
-      // isolate communication restrictions are respected between isolates that
-      // live in the same worker. [_NativeJsSendPort] delivers both messages
-      // from the same worker and messages from other workers. In particular,
-      // messages sent from a worker via a [_WorkerSendPort] are received at
-      // [_processWorkerMessage] and forwarded to a native port. In such cases,
-      // here we'll see [_globalState.currentContext == null].
-      final shouldSerialize = _globalState.currentContext != null
-          && _globalState.currentContext.id != _isolateId;
-      var msg = message;
-      if (shouldSerialize) {
-        msg = _serializeMessage(msg);
-      }
-      _globalState.topEventLoop.enqueue(isolate, () {
-        if (!_receivePort._isClosed) {
-          if (shouldSerialize) {
-            msg = _deserializeMessage(msg);
-          }
-          _receivePort._add(msg);
+    // We force serialization/deserialization as a simple way to ensure
+    // isolate communication restrictions are respected between isolates that
+    // live in the same worker. [_NativeJsSendPort] delivers both messages
+    // from the same worker and messages from other workers. In particular,
+    // messages sent from a worker via a [_WorkerSendPort] are received at
+    // [_processWorkerMessage] and forwarded to a native port. In such cases,
+    // here we'll see [_globalState.currentContext == null].
+    final shouldSerialize = _globalState.currentContext != null
+        && _globalState.currentContext.id != _isolateId;
+    var msg = message;
+    if (shouldSerialize) {
+      msg = _serializeMessage(msg);
+    }
+    _globalState.topEventLoop.enqueue(isolate, () {
+      if (!_receivePort._isClosed) {
+        if (shouldSerialize) {
+          msg = _deserializeMessage(msg);
         }
-      }, 'receive $message');
-    });
+        _receivePort._add(msg);
+      }
+    }, 'receive $message');
   }
 
   bool operator ==(var other) => (other is _NativeJsSendPort) &&
@@ -776,24 +788,22 @@
       : super(isolateId);
 
   void send(var message) {
-    _waitForPendingPorts(message, () {
-      final workerMessage = _serializeMessage({
-          'command': 'message',
-          'port': this,
-          'msg': message});
+    final workerMessage = _serializeMessage({
+        'command': 'message',
+        'port': this,
+        'msg': message});
 
-      if (_globalState.isWorker) {
-        // Communication from one worker to another go through the
-        // main worker.
-        _globalState.mainManager.postMessage(workerMessage);
-      } else {
-        // Deliver the message only if the worker is still alive.
-        /* Worker */ var manager = _globalState.managers[_workerId];
-        if (manager != null) {
-          JS('void', '#.postMessage(#)', manager, workerMessage);
-        }
+    if (_globalState.isWorker) {
+      // Communication from one worker to another go through the
+      // main worker.
+      _globalState.mainManager.postMessage(workerMessage);
+    } else {
+      // Deliver the message only if the worker is still alive.
+      /* Worker */ var manager = _globalState.managers[_workerId];
+      if (manager != null) {
+        JS('void', '#.postMessage(#)', manager, workerMessage);
       }
-    });
+    }
   }
 
   bool operator ==(var other) {
@@ -809,56 +819,6 @@
   }
 }
 
-/** A port that buffers messages until an underlying port gets resolved. */
-class _BufferingSendPort extends _BaseSendPort implements SendPort {
-  /** Internal counter to assign unique ids to each port. */
-  static int _idCount = 0;
-
-  /** For implementing equals and hashcode. */
-  final int _id;
-
-  /** Underlying port, when resolved. */
-  SendPort _port;
-
-  /**
-   * Future.sync the underlying port, so that we can detect when this port can be
-   * sent on messages.
-   */
-  Future<SendPort> _futurePort;
-
-  /** Pending messages (and reply ports). */
-  List pending;
-
-  _BufferingSendPort(isolateId, this._futurePort)
-      : super(isolateId), _id = _idCount, pending = [] {
-    _idCount++;
-    _futurePort.then((p) {
-      _port = p;
-      for (final item in pending) {
-        p.send(item);
-      }
-      pending = null;
-    });
-  }
-
-  _BufferingSendPort.fromPort(isolateId, this._port)
-      : super(isolateId), _id = _idCount {
-    _idCount++;
-  }
-
-  void send(var message) {
-    if (_port != null) {
-      _port.send(message);
-    } else {
-      pending.add(message);
-    }
-  }
-
-  bool operator ==(var other) =>
-      other is _BufferingSendPort && _id == other._id;
-  int get hashCode => _id;
-}
-
 class RawReceivePortImpl implements RawReceivePort {
   static int _nextFreeId = 1;
 
@@ -870,6 +830,10 @@
     _globalState.currentContext.register(_id, this);
   }
 
+  RawReceivePortImpl.weak(this._handler) {
+    _globalState.currentContext.registerWeak(_id, this);
+  }
+
   void set handler(Function newHandler) {
     _handler = newHandler;
   }
@@ -897,6 +861,9 @@
 
   ReceivePortImpl() : this.fromRawReceivePort(new RawReceivePortImpl(null));
 
+  ReceivePortImpl.weak()
+      : this.fromRawReceivePort(new RawReceivePortImpl.weak(null));
+
   ReceivePortImpl.fromRawReceivePort(this._rawPort) {
     _controller = new StreamController(onCancel: close, sync: true);
     _rawPort.handler = _controller.add;
@@ -919,45 +886,6 @@
 }
 
 
-/** Wait until all ports in a message are resolved. */
-_waitForPendingPorts(var message, void callback()) {
-  final finder = new _PendingSendPortFinder();
-  finder.traverse(message);
-  Future.wait(finder.ports).then((_) => callback());
-}
-
-
-/** Visitor that finds all unresolved [SendPort]s in a message. */
-class _PendingSendPortFinder extends _MessageTraverser {
-  List<Future<SendPort>> ports;
-  _PendingSendPortFinder() : super(), ports = [] {
-    _visited = new _JsVisitedMap();
-  }
-
-  visitPrimitive(x) {}
-
-  visitList(List list) {
-    final seen = _visited[list];
-    if (seen != null) return;
-    _visited[list] = true;
-    list.forEach(_dispatch);
-  }
-
-  visitMap(Map map) {
-    final seen = _visited[map];
-    if (seen != null) return;
-
-    _visited[map] = true;
-    map.values.forEach(_dispatch);
-  }
-
-  visitSendPort(var port) {
-    if (port is _BufferingSendPort && port._port == null) {
-      ports.add(port._futurePort);
-    }
-  }
-}
-
 /********************************************************
   Inserted from lib/isolate/dart2js/messages.dart
  ********************************************************/
@@ -990,7 +918,6 @@
   visitSendPort(SendPort x) {
     if (x is _NativeJsSendPort) return visitNativeJsSendPort(x);
     if (x is _WorkerSendPort) return visitWorkerSendPort(x);
-    if (x is _BufferingSendPort) return visitBufferingSendPort(x);
     throw "Illegal underlying port $x";
   }
 
@@ -1002,17 +929,6 @@
   visitWorkerSendPort(_WorkerSendPort port) {
     return ['sendport', port._workerId, port._isolateId, port._receivePortId];
   }
-
-  visitBufferingSendPort(_BufferingSendPort port) {
-    if (port._port != null) {
-      return visitSendPort(port._port);
-    } else {
-      // TODO(floitsch): Use real exception (which one?).
-      throw
-          "internal error: must call _waitForPendingPorts to ensure all"
-          " ports are resolved at this point.";
-    }
-  }
 }
 
 
@@ -1023,7 +939,6 @@
   visitSendPort(SendPort x) {
     if (x is _NativeJsSendPort) return visitNativeJsSendPort(x);
     if (x is _WorkerSendPort) return visitWorkerSendPort(x);
-    if (x is _BufferingSendPort) return visitBufferingSendPort(x);
     throw "Illegal underlying port $x";
   }
 
@@ -1035,17 +950,6 @@
     return new _WorkerSendPort(
         port._workerId, port._isolateId, port._receivePortId);
   }
-
-  SendPort visitBufferingSendPort(_BufferingSendPort port) {
-    if (port._port != null) {
-      return visitSendPort(port._port);
-    } else {
-      // TODO(floitsch): Use real exception (which one?).
-      throw
-          "internal error: must call _waitForPendingPorts to ensure all"
-          " ports are resolved at this point.";
-    }
-  }
 }
 
 class _JsDeserializer extends _Deserializer {
diff --git a/sdk/lib/_internal/lib/isolate_patch.dart b/sdk/lib/_internal/lib/isolate_patch.dart
index 69fa23e..560fb1f 100644
--- a/sdk/lib/_internal/lib/isolate_patch.dart
+++ b/sdk/lib/_internal/lib/isolate_patch.dart
@@ -5,7 +5,6 @@
 // Patch file for the dart:isolate library.
 
 import 'dart:_isolate_helper' show IsolateNatives,
-                                   lazyPort,
                                    ReceivePortImpl,
                                    RawReceivePortImpl,
                                    CloseToken,
@@ -13,8 +12,8 @@
 
 patch class Isolate {
   patch static Future<Isolate> spawn(void entryPoint(message), var message) {
-    SendPort controlPort = IsolateNatives.spawnFunction(entryPoint, message);
-    return new Future<Isolate>.value(new Isolate._fromControlPort(controlPort));
+    return IsolateNatives.spawnFunction(entryPoint, message)
+        .then((controlPort) => new Isolate._fromControlPort(controlPort));
   }
 
   patch static Future<Isolate> spawnUri(
@@ -28,8 +27,8 @@
     } else if (args != null) {
       throw new ArgumentError("Args must be a list of Strings $args");
     }
-    SendPort controlPort = IsolateNatives.spawnUri(uri, args, message);
-    return new Future<Isolate>.value(new Isolate._fromControlPort(controlPort));
+    return IsolateNatives.spawnUri(uri, args, message)
+        .then((controlPort) => new Isolate._fromControlPort(controlPort));
   }
 }
 
diff --git a/sdk/lib/_internal/lib/js_helper.dart b/sdk/lib/_internal/lib/js_helper.dart
index 7e753ef..ba5cf5b 100644
--- a/sdk/lib/_internal/lib/js_helper.dart
+++ b/sdk/lib/_internal/lib/js_helper.dart
@@ -33,6 +33,7 @@
 import 'dart:_collection-dev' show MappedIterable;
 
 import 'dart:_js_names' show
+    extractKeys,
     mangledNames,
     unmangleGlobalNameIfPreservedAnyways;
 
@@ -179,12 +180,32 @@
     } else {
       interceptor = null;
     }
+    bool isCatchAll = false;
     var method = JS('var', '#[#]', receiver, name);
-    if (JS('String', 'typeof #', method) == 'function') {
+    if (JS('bool', 'typeof # != "function"', method) ) {
+      String baseName = _symbol_dev.Symbol.getName(memberName);
+      method = JS('', '#[# + "*"]', receiver, baseName);
+      if (method == null) {
+        interceptor = getInterceptor(object);
+        method = JS('', '#[# + "*"]', interceptor, baseName);
+        if (method != null) {
+          isIntercepted = true;
+          receiver = interceptor;
+        } else {
+          interceptor = null;
+        }
+      }
+      isCatchAll = true;
+    }
+    if (JS('bool', 'typeof # == "function"', method)) {
       if (!hasReflectableProperty(method)) {
         throwInvalidReflectionError(_symbol_dev.Symbol.getName(memberName));
       }
-      return new CachedInvocation(method, isIntercepted, interceptor);
+      if (isCatchAll) {
+        return new CachedCatchAllInvocation(method, isIntercepted, interceptor);
+      } else {
+        return new CachedInvocation(method, isIntercepted, interceptor);
+      }
     } else {
       // In this case, receiver doesn't implement name.  So we should
       // invoke noSuchMethod instead (which will often throw a
@@ -223,7 +244,7 @@
 
   bool get isNoSuchMethod => false;
 
-  /// Applies [jsFunction] to object with [arguments].
+  /// Applies [jsFunction] to [victim] with [arguments].
   /// Users of this class must take care to check the arguments first.
   invokeOn(Object victim, List arguments) {
     var receiver = victim;
@@ -237,6 +258,49 @@
   }
 }
 
+class CachedCatchAllInvocation extends CachedInvocation {
+  final ReflectionInfo info;
+
+  CachedCatchAllInvocation(jsFunction,
+                           bool isIntercepted,
+                           Interceptor cachedInterceptor)
+      : info = new ReflectionInfo(jsFunction),
+        super(jsFunction, isIntercepted, cachedInterceptor);
+
+  invokeOn(Object victim, List arguments) {
+    var receiver = victim;
+    int providedArgumentCount;
+    if (!isIntercepted) {
+      if (arguments is! JSArray) arguments = new List.from(arguments);
+      providedArgumentCount = arguments.length;
+    } else {
+      arguments = [victim]..addAll(arguments);
+      if (cachedInterceptor != null) receiver = cachedInterceptor;
+      providedArgumentCount = arguments.length - 1;
+    }
+    int fullParameterCount =
+        info.requiredParameterCount + info.optionalParameterCount;
+    if (info.areOptionalParametersNamed &&
+        (providedArgumentCount > info.requiredParameterCount)) {
+      throw new UnimplementedNoSuchMethodError(
+          "Invocation of unstubbed method '${info.reflectionName}'"
+          " with ${arguments.length} arguments.");
+    } else if (providedArgumentCount < info.requiredParameterCount) {
+      throw new UnimplementedNoSuchMethodError(
+          "Invocation of unstubbed method '${info.reflectionName}'"
+          " with $providedArgumentCount arguments (too few).");
+    } else if (providedArgumentCount > fullParameterCount) {
+      throw new UnimplementedNoSuchMethodError(
+          "Invocation of unstubbed method '${info.reflectionName}'"
+          " with $providedArgumentCount arguments (too many).");
+    }
+    for (int i = providedArgumentCount; i < fullParameterCount; i++) {
+      arguments.add(getMetadata(info.defaultValue(i)));
+    }
+    return JS("var", "#.apply(#, #)", jsFunction, receiver, arguments);
+  }
+}
+
 class CachedNoSuchMethodInvocation {
   /// Non-null interceptor if this is an intercepted call through an
   /// [Interceptor].
@@ -252,6 +316,96 @@
   }
 }
 
+class ReflectionInfo {
+  static const int REQUIRED_PARAMETERS_INFO = 0;
+  static const int OPTIONAL_PARAMETERS_INFO = 1;
+  static const int FUNCTION_TYPE_INDEX = 2;
+  static const int FIRST_DEFAULT_ARGUMENT = 3;
+
+  /// A JavaScript function object.
+  final jsFunction;
+
+  /// Raw reflection information.
+  final List data;
+
+  /// Is this a getter or a setter.
+  final bool isAccessor;
+
+  /// Number of required parameters.
+  final int requiredParameterCount;
+
+  /// Number of optional parameters.
+  final int optionalParameterCount;
+
+  /// Are optional parameters named.
+  final bool areOptionalParametersNamed;
+
+  /// Either an index to the function type in [:init.metadata:] or a JavaScript
+  /// function object which can compute such a type (presumably due to free
+  /// type variables).
+  final functionType;
+
+  ReflectionInfo.internal(this.jsFunction,
+                          this.data,
+                          this.isAccessor,
+                          this.requiredParameterCount,
+                          this.optionalParameterCount,
+                          this.areOptionalParametersNamed,
+                          this.functionType);
+
+  factory ReflectionInfo(jsFunction) {
+    List data = JS('JSExtendableArray|Null', r'#.$reflectionInfo', jsFunction);
+    if (data == null) return null;
+    data = JSArray.markFixedList(data);
+
+    int requiredParametersInfo =
+        JS('int', '#[#]', data, REQUIRED_PARAMETERS_INFO);
+    int requiredParameterCount = JS('int', '# >> 1', requiredParametersInfo);
+    bool isAccessor = (requiredParametersInfo & 1) == 1;
+
+    int optionalParametersInfo =
+        JS('int', '#[#]', data, OPTIONAL_PARAMETERS_INFO);
+    int optionalParameterCount = JS('int', '# >> 1', optionalParametersInfo);
+    bool areOptionalParametersNamed = (optionalParametersInfo & 1) == 1;
+
+    var functionType = JS('', '#[#]', data, FUNCTION_TYPE_INDEX);
+    return new ReflectionInfo.internal(
+        jsFunction, data, isAccessor, requiredParameterCount,
+        optionalParameterCount, areOptionalParametersNamed, functionType);
+  }
+
+  String parameterName(int parameter) {
+    int metadataIndex = JS('int', '#[# + # + #]', data, parameter,
+                           optionalParameterCount, FIRST_DEFAULT_ARGUMENT);
+    return JS('String', 'init.metadata[#]', metadataIndex);
+  }
+
+  int defaultValue(int parameter) {
+    if (parameter < requiredParameterCount) return null;
+    return JS('int', '#[# + # - #]', data,
+              FIRST_DEFAULT_ARGUMENT, parameter, requiredParameterCount);
+  }
+
+  @NoInline
+  computeFunctionRti(jsConstructor) {
+    if (JS('bool', 'typeof # == "number"', functionType)) {
+      return getMetadata(functionType);
+    } else if (JS('bool', 'typeof # == "function"', functionType)) {
+      var fakeInstance = JS('', 'new #()', jsConstructor);
+      setRuntimeTypeInfo(
+          fakeInstance, JS('JSExtendableArray', '#["<>"]', fakeInstance));
+      return JS('=Object|Null', r'#.apply({$receiver:#})',
+                functionType, fakeInstance);
+    } else {
+      throw new RuntimeError('Unexpected function type');
+    }
+  }
+
+  String get reflectionName => JS('String', r'#.$reflectionName', jsFunction);
+}
+
+getMetadata(int index) => JS('', 'init.metadata[#]', index);
+
 class Primitives {
   /// Isolate-unique ID for caching [JsClosureMirror.function].
   /// Note the initial value is used by the first isolate (or if there are no
@@ -679,11 +833,93 @@
     JS('void', '#[#] = #', object, key, value);
   }
 
+  static functionNoSuchMethod(function,
+                              List positionalArguments,
+                              Map<String, dynamic> namedArguments) {
+    int argumentCount = 0;
+    List arguments = [];
+    List namedArgumentList = [];
+
+    if (positionalArguments != null) {
+      argumentCount += positionalArguments.length;
+      arguments.addAll(positionalArguments);
+    }
+
+    String names = '';
+    if (namedArguments != null && !namedArguments.isEmpty) {
+      namedArguments.forEach((String name, argument) {
+        names = '$names\$$name';
+        namedArgumentList.add(name);
+        arguments.add(argument);
+        argumentCount++;
+      });
+    }
+
+    String selectorName = 'call\$$argumentCount$names';
+
+    return function.noSuchMethod(
+        createUnmangledInvocationMirror(
+            #call,
+            selectorName,
+            JSInvocationMirror.METHOD,
+            arguments,
+            namedArgumentList));
+  }
+
   static applyFunction(Function function,
                        List positionalArguments,
                        Map<String, dynamic> namedArguments) {
+    if (namedArguments != null && !namedArguments.isEmpty) {
+      // TODO(ahe): The following code can be shared with
+      // JsInstanceMirror.invoke.
+      var interceptor = getInterceptor(function);
+      var jsFunction = JS('', '#["call*"]', interceptor);
+
+      if (jsFunction == null) {
+        return functionNoSuchMethod(
+            function, positionalArguments, namedArguments);
+      }
+      ReflectionInfo info = new ReflectionInfo(jsFunction);
+      if (info == null || !info.areOptionalParametersNamed) {
+        return functionNoSuchMethod(
+            function, positionalArguments, namedArguments);
+      }
+
+      if (positionalArguments != null) {
+        positionalArguments = new List.from(positionalArguments);
+      } else {
+        positionalArguments = [];
+      }
+      // Check the number of positional arguments is valid.
+      if (info.requiredParameterCount != positionalArguments.length) {
+        return functionNoSuchMethod(
+            function, positionalArguments, namedArguments);
+      }
+      var defaultArguments = new Map();
+      for (int i = 0; i < info.optionalParameterCount; i++) {
+        var parameterName = info.parameterName(i + info.requiredParameterCount);
+        var defaultValue =
+            getMetadata(info.defaultValue(i + info.requiredParameterCount));
+        defaultArguments[parameterName] = defaultValue;
+      }
+      bool bad = false;
+      namedArguments.forEach((String parameter, value) {
+        if (defaultArguments.containsKey(parameter)) {
+          defaultArguments[parameter] = value;
+        } else {
+          // Extraneous named argument.
+          bad = true;
+        }
+      });
+      if (bad) {
+        return functionNoSuchMethod(
+            function, positionalArguments, namedArguments);
+      }
+      positionalArguments.addAll(defaultArguments.values);
+      return JS('', '#.apply(#, #)', jsFunction, function, positionalArguments);
+    }
+
     int argumentCount = 0;
-    StringBuffer buffer = new StringBuffer();
     List arguments = [];
 
     if (positionalArguments != null) {
@@ -691,50 +927,15 @@
       arguments.addAll(positionalArguments);
     }
 
-    if (JS('bool', r'# in #', JS_GET_NAME('CALL_CATCH_ALL'), function)) {
-      // We expect the closure to have a "call$catchAll" (the value of
-      // JS_GET_NAME('CALL_CATCH_ALL')) function that returns all the expected
-      // named parameters as a (new) JavaScript object literal.  The keys in
-      // the object literal correspond to the argument names, and the values
-      // are the default values. The compiler emits the properties sorted by
-      // keys, and this order is preserved in JavaScript, so we don't need to
-      // sort the keys. Since a new object is returned each time we call
-      // call$catchAll, we can simply overwrite default entries with the
-      // provided named arguments. If there are incorrectly named arguments in
-      // [namedArguments], noSuchMethod will be called as expected.
-      var allNamedArguments =
-          JS('var', r'#[#]()', function, JS_GET_NAME('CALL_CATCH_ALL'));
-      if (namedArguments != null && !namedArguments.isEmpty) {
-        namedArguments.forEach((String key, argument) {
-          JS('void', '#[#] = #', allNamedArguments, key, argument);
-        });
-      }
-      List<String> listOfNamedArguments =
-          JS('List', 'Object.getOwnPropertyNames(#)', allNamedArguments);
-      argumentCount += listOfNamedArguments.length;
-      listOfNamedArguments.forEach((String name) {
-        buffer.write('\$$name');
-        arguments.add(JS('', '#[#]', allNamedArguments, name));
-      });
-    } else {
-      if (namedArguments != null && !namedArguments.isEmpty) {
-        namedArguments.forEach((String name, argument) {
-          buffer.write('\$$name');
-          arguments.add(argument);
-          argumentCount++;
-        });
-      }
-    }
-
-    String selectorName = 'call\$$argumentCount$buffer';
+    String selectorName = 'call\$$argumentCount';
     var jsFunction = JS('var', '#[#]', function, selectorName);
     if (jsFunction == null) {
-      return function.noSuchMethod(createUnmangledInvocationMirror(
-          const Symbol('call'),
-          selectorName,
-          JSInvocationMirror.METHOD,
-          arguments,
-          namedArguments == null ? [] : namedArguments.keys.toList()));
+
+      // TODO(ahe): This might occur for optional arguments if there is no call
+      // selector with that many arguments.
+
+      return
+          functionNoSuchMethod(function, positionalArguments, namedArguments);
     }
     // We bound 'this' to [function] because of how we compile
     // closures: escaped local variables are stored and accessed through
@@ -1530,13 +1731,149 @@
 /**
  * Super class for Dart closures.
  */
-class Closure implements Function {
+abstract class Closure implements Function {
+  // TODO(ahe): These constants must be in sync with
+  // reflection_data_parser.dart.
+  static const FUNCTION_INDEX = 0;
+  static const NAME_INDEX = 1;
+  static const CALL_NAME_INDEX = 2;
+  static const REQUIRED_PARAMETER_INDEX = 3;
+  static const OPTIONAL_PARAMETER_INDEX = 4;
+  static const DEFAULT_ARGUMENTS_INDEX = 5;
+
+  Closure();
+
+  /**
+   * Creates a closure for use by implicit getters associated with a method.
+   *
+   * In other words, creates a tear-off closure.
+   *
+   * Called from [closureFromTearOff] as well as from reflection when tearing
+   * of a method via [:getField:].
+   *
+   * This method assumes that [functions] was created by the JavaScript function
+   * `addStubs` in `reflection_data_parser.dart`. That is, a list of JavaScript
+   * function objects with properties `$stubName` and `$callName`.
+   *
+   * Further assumes that [reflectionInfo] is the end of the array created by
+   * [dart2js.js_emitter.ContainerBuilder.addMemberMethod] starting with
+   * required parameter count.
+   *
+   * Caution: this function may be called when building constants.
+   * TODO(ahe): Don't call this function when building constants.
+   */
+  factory Closure.fromTearOff(receiver,
+                              List functions,
+                              List reflectionInfo,
+                              bool isStatic,
+                              jsArguments,
+                              String propertyName) {
+    // TODO(ahe): All the place below using \$ should be rewritten to go
+    // through the namer.
+    var function = JS('', '#[#]', functions, 0);
+    // TODO(ahe): Try fetching the property directly instead of using "in".
+    if (isStatic && JS('bool', '"\$tearOff" in #', function)) {
+      // The implicit closure of a static function is always the same.
+      return JS('Closure', '#.\$tearOff', function);
+    }
+
+    String name = JS('String|Null', '#.\$stubName', function);
+    String callName = JS('String|Null', '#.\$callName', function);
+
+    JS('', r'#.$reflectionInfo = #', function, reflectionInfo);
+    ReflectionInfo info = new ReflectionInfo(function);
+
+    var functionType = info.functionType;
+
+    // Create a closure and "monkey" patch it with call stubs.
+    Closure closure;
+    var trampoline = function;
+    if (!isStatic) {
+      if (JS('bool', '#.length == 1', jsArguments)) {
+        // Intercepted call.
+        var argument = JS('', '#[0]', jsArguments);
+        trampoline = forwardInterceptedCallTo(argument, receiver, function);
+        closure = new BoundClosure(receiver, function, argument, name);
+      } else {
+        trampoline = forwardTo(receiver, function);
+        closure = new BoundClosure(receiver, function, null, name);
+      }
+    } else {
+      closure = new TearOffClosure();
+      JS('', '#.\$tearOff = #', function, closure);
+      JS('', r'#.$name = #', closure, propertyName);
+    }
+
+    var signatureFunction;
+    if (JS('bool', 'typeof # == "number"', functionType)) {
+      signatureFunction =
+          JS('', '(function(s){return function(){return init.metadata[s]}})(#)',
+             functionType);
+    } else if (!isStatic
+               && JS('bool', 'typeof # == "function"', functionType)) {
+      signatureFunction = functionType;
+      JS('', r'#.$receiver = #', closure, receiver);
+    } else {
+      throw 'Error in reflectionInfo.';
+    }
+
+    JS('', '#.\$signature = #', closure, signatureFunction);
+
+    JS('', '#[#] = #', closure, callName, trampoline);
+    for (int i = 1; i < functions.length; i++) {
+      var stub = functions[i];
+      var stubCallName = JS('String|Null', '#.\$callName', stub);
+      // TODO(ahe): Support interceptors here.
+      JS('', '#[#] = #', closure, stubCallName,
+         isStatic ? stub : forwardTo(receiver, stub));
+    }
+
+    JS('', '#["call*"] = #', closure, function);
+
+    return closure;
+  }
+
+  static forwardTo(receiver, function) {
+    return JS(
+        '',
+        'function(r,f){return function(){return f.apply(r,arguments)}}(#,#)',
+        receiver, function);
+  }
+
+  static forwardInterceptedCallTo(self, interceptor, function) {
+    return JS(
+        '',
+        'function(i,s,f){return function(){'
+        'return f.call.bind(f,i,s).apply(i,arguments)}}(#,#,#)',
+        interceptor, self, function);
+  }
+
   String toString() => "Closure";
 }
 
+/// Called from implicit method getter (aka tear-off).
+Closure closureFromTearOff(receiver,
+                           functions,
+                           reflectionInfo,
+                           isStatic,
+                           jsArguments,
+                           name) {
+  return new Closure.fromTearOff(
+      receiver,
+      JSArray.markFixedList(functions),
+      JSArray.markFixedList(reflectionInfo),
+      JS('bool', '!!#', isStatic),
+      jsArguments,
+      JS('String', '#', name));
+}
+
+/// Represents an implicit closure of a function.
+class TearOffClosure extends Closure {
+}
+
 /// Represents a 'tear-off' closure, that is an instance method bound
 /// to a specific receiver (instance).
-class BoundClosure extends Closure {
+class BoundClosure extends TearOffClosure {
   /// The receiver or interceptor.
   // TODO(ahe): This could just be the interceptor, we always know if
   // we need the interceptor when generating the call method.
@@ -1551,6 +1888,8 @@
   /// The name of the function. Only used by the mirror system.
   final String _name;
 
+  BoundClosure(this._self, this._target, this._receiver, this._name);
+
   bool operator==(other) {
     if (identical(this, other)) return true;
     if (other is! BoundClosure) return false;
@@ -2027,3 +2366,386 @@
   RuntimeError(this.message);
   String toString() => "RuntimeError: $message";
 }
+
+abstract class RuntimeType {
+  const RuntimeType();
+
+  toRti();
+}
+
+class RuntimeFunctionType extends RuntimeType {
+  final RuntimeType returnType;
+  final List<RuntimeType> parameterTypes;
+  final List<RuntimeType> optionalParameterTypes;
+  final namedParameters;
+
+  static var /* bool */ inAssert = false;
+
+  RuntimeFunctionType(this.returnType,
+                      this.parameterTypes,
+                      this.optionalParameterTypes,
+                      this.namedParameters);
+
+  bool get isVoid => returnType is VoidRuntimeType;
+
+  /// Called from generated code. [expression] is a Dart object and this method
+  /// returns true if [this] is a supertype of [expression].
+  @NoInline() @NoSideEffects()
+  bool _isTest(expression) {
+    var functionTypeObject = _extractFunctionTypeObjectFrom(expression);
+    return functionTypeObject == null
+        ? false
+        : isFunctionSubtype(functionTypeObject, toRti());
+  }
+
+  @NoInline() @NoSideEffects()
+  _asCheck(expression) {
+    // Type inferrer doesn't think this is called with dynamic arguments.
+    return _check(JS('', '#', expression), true);
+  }
+
+  @NoInline() @NoSideEffects()
+  _assertCheck(expression) {
+    if (inAssert) return;
+    inAssert = true; // Don't try to check this library itself.
+    try {
+      // Type inferrer don't think this is called with dynamic arguments.
+      return _check(JS('', '#', expression), false);
+    } finally {
+      inAssert = false;
+    }
+  }
+
+  _check(expression, bool isCast) {
+    if (expression == null) return null;
+    if (_isTest(expression)) return expression;
+
+    var self = new FunctionTypeInfoDecoderRing(toRti()).toString();
+    if (isCast) {
+      var functionTypeObject = _extractFunctionTypeObjectFrom(expression);
+      var pretty;
+      if (functionTypeObject != null) {
+        pretty = new FunctionTypeInfoDecoderRing(functionTypeObject).toString();
+      } else {
+        pretty = Primitives.objectTypeName(expression);
+      }
+      throw new CastErrorImplementation(pretty, self);
+    } else {
+      // TODO(ahe): Pass "pretty" function-type to TypeErrorImplementation?
+      throw new TypeErrorImplementation(expression, self);
+    }
+  }
+
+  _extractFunctionTypeObjectFrom(o) {
+    var interceptor = getInterceptor(o);
+    return JS('bool', '# in #', JS_SIGNATURE_NAME(), interceptor)
+        ? JS('', '#[#]()', interceptor, JS_SIGNATURE_NAME())
+        : null;
+  }
+
+  toRti() {
+    var result = JS('=Object', '{ #: "dynafunc" }', JS_FUNCTION_TYPE_TAG());
+    if (isVoid) {
+      JS('', '#[#] = true', result, JS_FUNCTION_TYPE_VOID_RETURN_TAG());
+    } else {
+      if (returnType is! DynamicRuntimeType) {
+        JS('', '#[#] = #', result, JS_FUNCTION_TYPE_RETURN_TYPE_TAG(),
+           returnType.toRti());
+      }
+    }
+    if (parameterTypes != null && !parameterTypes.isEmpty) {
+      JS('', '#[#] = #', result, JS_FUNCTION_TYPE_REQUIRED_PARAMETERS_TAG(),
+         listToRti(parameterTypes));
+    }
+
+    if (optionalParameterTypes != null && !optionalParameterTypes.isEmpty) {
+      JS('', '#[#] = #', result, JS_FUNCTION_TYPE_OPTIONAL_PARAMETERS_TAG(),
+         listToRti(optionalParameterTypes));
+    }
+
+    if (namedParameters != null) {
+      var namedRti = JS('=Object', '{}');
+      var keys = extractKeys(namedParameters);
+      for (var i = 0; i < keys.length; i++) {
+        var name = keys[i];
+        var rti = JS('', '#[#]', namedParameters, name).toRti();
+        JS('', '#[#] = #', namedRti, name, rti);
+      }
+      JS('', '#[#] = #', result, JS_FUNCTION_TYPE_NAMED_PARAMETERS_TAG(),
+         namedRti);
+    }
+
+    return result;
+  }
+
+  static listToRti(list) {
+    list = JS('JSFixedArray', '#', list);
+    var result = JS('JSExtendableArray', '[]');
+    for (var i = 0; i < list.length; i++) {
+      JS('', '#.push(#)', result, list[i].toRti());
+    }
+    return result;
+  }
+
+  String toString() {
+    String result = '(';
+    bool needsComma = false;
+    if (parameterTypes != null) {
+      for (var i = 0; i < parameterTypes.length; i++) {
+        RuntimeType type = parameterTypes[i];
+        if (needsComma) result += ', ';
+        result += '$type';
+        needsComma = true;
+      }
+    }
+    if (optionalParameterTypes != null && !optionalParameterTypes.isEmpty) {
+      if (needsComma) result += ', ';
+      needsComma = false;
+      result += '[';
+      for (var i = 0; i < optionalParameterTypes.length; i++) {
+        RuntimeType type = optionalParameterTypes[i];
+        if (needsComma) result += ', ';
+        result += '$type';
+        needsComma = true;
+      }
+      result += ']';
+    } else if (namedParameters != null) {
+      if (needsComma) result += ', ';
+      needsComma = false;
+      result += '{';
+      var keys = extractKeys(namedParameters);
+      for (var i = 0; i < keys.length; i++) {
+        var name = keys[i];
+        if (needsComma) result += ', ';
+        var rti = JS('', '#[#]', namedParameters, name).toRti();
+        result += '$rti ${JS("String", "#", name)}';
+        needsComma = true;
+      }
+      result += '}';
+    }
+
+    result += ') -> $returnType';
+    return result;
+  }
+}
+
+RuntimeFunctionType buildFunctionType(returnType,
+                                      parameterTypes,
+                                      optionalParameterTypes) {
+  return new RuntimeFunctionType(
+      returnType,
+      parameterTypes,
+      optionalParameterTypes,
+      null);
+}
+
+RuntimeFunctionType buildNamedFunctionType(returnType,
+                                           parameterTypes,
+                                           namedParameters) {
+  return new RuntimeFunctionType(
+      returnType,
+      parameterTypes,
+      null,
+      namedParameters);
+}
+
+RuntimeType buildInterfaceType(rti, typeArguments) {
+  String name = JS('String|Null', r'#.name', rti);
+  if (typeArguments == null || typeArguments.isEmpty) {
+    return new RuntimeTypePlain(name);
+  }
+  return new RuntimeTypeGeneric(name, typeArguments, null);
+}
+
+class DynamicRuntimeType extends RuntimeType {
+  const DynamicRuntimeType();
+
+  String toString() => 'dynamic';
+
+  toRti() => null;
+}
+
+RuntimeType getDynamicRuntimeType() => const DynamicRuntimeType();
+
+class VoidRuntimeType extends RuntimeType {
+  const VoidRuntimeType();
+
+  String toString() => 'void';
+
+  toRti() => throw 'internal error';
+}
+
+RuntimeType getVoidRuntimeType() => const VoidRuntimeType();
+
+/**
+ * Meta helper for function type tests.
+ *
+ * A "meta helper" is a helper function that is never called but simulates how
+ * generated code behaves as far as resolution and type inference is concerned.
+ */
+functionTypeTestMetaHelper() {
+  var dyn = JS('', 'x');
+  var dyn2 = JS('', 'x');
+  List fixedListOrNull = JS('JSFixedArray|Null', 'x');
+  List fixedListOrNull2 = JS('JSFixedArray|Null', 'x');
+  List fixedList = JS('JSFixedArray', 'x');
+  // TODO(ahe): Can we use [UnknownJavaScriptObject] below?
+  var /* UnknownJavaScriptObject */ jsObject = JS('=Object', 'x');
+
+  buildFunctionType(dyn, fixedListOrNull, fixedListOrNull2);
+  buildNamedFunctionType(dyn, fixedList, jsObject);
+  buildInterfaceType(dyn, fixedListOrNull);
+  getDynamicRuntimeType();
+  getVoidRuntimeType();
+  convertRtiToRuntimeType(dyn);
+  dyn._isTest(dyn2);
+  dyn._asCheck(dyn2);
+  dyn._assertCheck(dyn2);
+}
+
+RuntimeType convertRtiToRuntimeType(rti) {
+  if (rti == null) {
+    return getDynamicRuntimeType();
+  } else if (JS('bool', 'typeof # == "function"', rti)) {
+    return new RuntimeTypePlain(JS('String', r'rti.name'));
+  } else if (JS('bool', '#.constructor == Array', rti)) {
+    List list = JS('JSFixedArray', '#', rti);
+    String name = JS('String', r'#.name', list[0]);
+    List arguments = [];
+    for (int i = 1; i < list.length; i++) {
+      arguments.add(convertRtiToRuntimeType(list[i]));
+    }
+    return new RuntimeTypeGeneric(name, arguments, rti);
+  } else if (JS('bool', '"func" in #', rti)) {
+    return new FunctionTypeInfoDecoderRing(rti).toRuntimeType();
+  } else {
+    throw new RuntimeError(
+        "Cannot convert "
+        "'${JS('String', 'JSON.stringify(#)', rti)}' to RuntimeType.");
+  }
+}
+
+class RuntimeTypePlain extends RuntimeType {
+  final String name;
+
+  RuntimeTypePlain(this.name);
+
+  toRti() {
+    var rti = JS('', 'init.allClasses[#]', name);
+    if (rti == null) throw "no type for '$name'";
+    return rti;
+  }
+
+  String toString() => name;
+}
+
+class RuntimeTypeGeneric extends RuntimeType {
+  final String name;
+  final List<RuntimeType> arguments;
+  var rti;
+
+  RuntimeTypeGeneric(this.name, this.arguments, this.rti);
+
+  toRti() {
+    if (rti != null) return rti;
+    var result = JS('JSExtendableArray', '[init.allClasses[#]]', name);
+    if (result[0] == null) {
+      throw "no type for '$name<...>'";
+    }
+    for (RuntimeType argument in arguments) {
+      JS('', '#.push(#)', result, argument.toRti());
+    }
+    return rti = result;
+  }
+
+  String toString() => '$name<${arguments.join(", ")}>';
+}
+
+class FunctionTypeInfoDecoderRing {
+  final _typeData;
+  String _cachedToString;
+
+  FunctionTypeInfoDecoderRing(this._typeData);
+
+  bool get _hasReturnType => JS('bool', '"ret" in #', _typeData);
+  get _returnType => JS('', '#.ret', _typeData);
+
+  bool get _isVoid => JS('bool', '!!#.void', _typeData);
+
+  bool get _hasArguments => JS('bool', '"args" in #', _typeData);
+  List get _arguments => JS('JSExtendableArray', '#.args', _typeData);
+
+  bool get _hasOptionalArguments => JS('bool', '"opt" in #', _typeData);
+  List get _optionalArguments => JS('JSExtendableArray', '#.opt', _typeData);
+
+  bool get _hasNamedArguments => JS('bool', '"named" in #', _typeData);
+  get _namedArguments => JS('=Object', '#.named', _typeData);
+
+  RuntimeType toRuntimeType() {
+    // TODO(ahe): Implement this (and update return type).
+    return const DynamicRuntimeType();
+  }
+
+  String _convert(type) {
+    String result = runtimeTypeToString(type);
+    if (result != null) return result;
+    if (JS('bool', '"func" in #', type)) {
+      return new FunctionTypeInfoDecoderRing(type).toString();
+    } else {
+      throw 'bad type';
+    }
+  }
+
+  String toString() {
+    if (_cachedToString != null) return _cachedToString;
+    var s = "(";
+    var sep = '';
+    if (_hasArguments) {
+      for (var argument in _arguments) {
+        s += sep;
+        s += _convert(argument);
+        sep = ', ';
+      }
+    }
+    if (_hasOptionalArguments) {
+      s += '$sep[';
+      sep = '';
+      for (var argument in _optionalArguments) {
+        s += sep;
+        s += _convert(argument);
+        sep = ', ';
+      }
+      s += ']';
+    }
+    if (_hasNamedArguments) {
+      s += '$sep{';
+      sep = '';
+      for (var name in extractKeys(_namedArguments)) {
+        s += sep;
+        s += '$name: ';
+        s += _convert(JS('', '#[#]', _namedArguments, name));
+        sep = ', ';
+      }
+      s += '}';
+    }
+    s += ') -> ';
+    if (_isVoid) {
+      s += 'void';
+    } else if (_hasReturnType) {
+      s += _convert(_returnType);
+    } else {
+      s += 'dynamic';
+    }
+    return _cachedToString = "$s";
+  }
+}
+
+// TODO(ahe): Remove this class and call noSuchMethod instead.
+class UnimplementedNoSuchMethodError extends Error
+    implements NoSuchMethodError {
+  final String _message;
+
+  UnimplementedNoSuchMethodError(this._message);
+
+  String toString() => "Unsupported operation: $_message";
+}
diff --git a/sdk/lib/_internal/lib/js_mirrors.dart b/sdk/lib/_internal/lib/js_mirrors.dart
index b1fb4c4..f27c8cc 100644
--- a/sdk/lib/_internal/lib/js_mirrors.dart
+++ b/sdk/lib/_internal/lib/js_mirrors.dart
@@ -5,7 +5,10 @@
 library dart._js_mirrors;
 
 import 'dart:async';
-import 'dart:collection' show UnmodifiableListView;
+
+import 'dart:collection' show
+    UnmodifiableListView;
+
 import 'dart:mirrors';
 
 import 'dart:_foreign_helper' show
@@ -13,7 +16,9 @@
     JS_CURRENT_ISOLATE,
     JS_CURRENT_ISOLATE_CONTEXT,
     JS_GET_NAME;
+
 import 'dart:_collection-dev' as _symbol_dev;
+
 import 'dart:_js_helper' show
     BoundClosure,
     Closure,
@@ -21,17 +26,25 @@
     JsCache,
     Null,
     Primitives,
+    ReflectionInfo,
     RuntimeError,
+    TypeVariable,
+    UnimplementedNoSuchMethodError,
     createRuntimeType,
     createUnmangledInvocationMirror,
     getMangledTypeName,
-    throwInvalidReflectionError,
+    getMetadata,
     hasReflectableProperty,
     runtimeTypeToString,
-    TypeVariable;
+    setRuntimeTypeInfo,
+    throwInvalidReflectionError;
+
 import 'dart:_interceptors' show
     Interceptor,
-    JSExtendableArray;
+    JSArray,
+    JSExtendableArray,
+    getInterceptor;
+
 import 'dart:_js_names';
 
 const String METHODS_WITH_OPTIONAL_ARGUMENTS = r'$methodsWithOptionalArguments';
@@ -771,35 +784,34 @@
     String name = n(memberName);
     String reflectiveName;
     if (namedArguments != null && !namedArguments.isEmpty) {
-      var methodsWithOptionalArguments =
-          JS('=Object', '#.\$methodsWithOptionalArguments', reflectee);
-      String mangledName =
-          JS('String|Null', '#[#]', methodsWithOptionalArguments, '*$name');
-      if (mangledName == null) {
+      var interceptor = getInterceptor(reflectee);
+
+      var jsFunction = JS('', '#[# + "*"]', interceptor, name);
+      if (jsFunction == null) {
         // TODO(ahe): Invoke noSuchMethod.
         throw new UnimplementedNoSuchMethodError(
             'Invoking noSuchMethod with named arguments not implemented');
       }
-      var defaultValueIndices =
-          JS('List|Null', '#[#].\$defaultValues', reflectee, mangledName);
-      var defaultValues =
-          defaultValueIndices.map((int i) => getMetadata(i))
-          .iterator;
-      var defaultArguments = new Map();
-      reflectiveName = mangledNames[mangledName];
-      var reflectiveNames = reflectiveName.split(':');
-      int requiredPositionalArgumentCount =
-          int.parse(reflectiveNames.elementAt(1));
+      ReflectionInfo info = new ReflectionInfo(jsFunction);
+      if (jsFunction == null) {
+        // TODO(ahe): Invoke noSuchMethod.
+        throw new UnimplementedNoSuchMethodError(
+            'Invoking noSuchMethod with named arguments not implemented');
+      }
+
       positionalArguments = new List.from(positionalArguments);
       // Check the number of positional arguments is valid.
-      if (requiredPositionalArgumentCount != positionalArguments.length) {
+      if (info.requiredParameterCount != positionalArguments.length) {
         // TODO(ahe): Invoke noSuchMethod.
         throw new UnimplementedNoSuchMethodError(
             'Invoking noSuchMethod with named arguments not implemented');
       }
-      for (String parameter in reflectiveNames.skip(3)) {
-        defaultValues.moveNext();
-        defaultArguments[parameter] = defaultValues.current;
+      var defaultArguments = new Map();
+      for (int i = 0; i < info.optionalParameterCount; i++) {
+        var parameterName = info.parameterName(i + info.requiredParameterCount);
+        var defaultValue =
+            getMetadata(info.defaultValue(i + info.requiredParameterCount));
+        defaultArguments[parameterName] = defaultValue;
       }
       namedArguments.forEach((Symbol symbol, value) {
         String parameter = n(symbol);
@@ -813,6 +825,9 @@
         }
       });
       positionalArguments.addAll(defaultArguments.values);
+      // TODO(ahe): Handle intercepted methods.
+      return reflect(
+          JS('', '#.apply(#, #)', jsFunction, reflectee, positionalArguments));
     } else {
       reflectiveName =
           JS('String', '# + ":" + # + ":0"', name, positionalArguments.length);
@@ -1201,25 +1216,23 @@
     }
 
     keys = extractKeys(JS('', 'init.statics[#]', _mangledName));
-    int length = keys.length;
-    for (int i = 0; i < length; i++) {
-      String mangledName = keys[i];
+    for (String mangledName in keys) {
       if (isReflectiveDataInPrototype(mangledName)) continue;
       String unmangledName = mangledName;
       var jsFunction = JS('', '#[#]', owner._globalObject, mangledName);
 
       bool isConstructor = false;
-      if (i + 1 < length) {
-        String reflectionName = keys[i + 1];
-        if (reflectionName.startsWith('+')) {
-          i++;
-          reflectionName = reflectionName.substring(1);
-          isConstructor = reflectionName.startsWith('new ');
-          if (isConstructor) {
-            reflectionName = reflectionName.substring(4).replaceAll(r'$', '.');
-          }
+      if (hasReflectableProperty(jsFunction)) {
+        String reflectionName =
+            JS('String|Null', r'#.$reflectionName', jsFunction);
+        if (reflectionName == null) continue;
+        isConstructor = reflectionName.startsWith('new ');
+        if (isConstructor) {
+          reflectionName = reflectionName.substring(4).replaceAll(r'$', '.');
         }
         unmangledName = reflectionName;
+      } else {
+        continue;
       }
       bool isStatic = !isConstructor; // Constructors are not static.
       JsMethodMirror mirror =
@@ -1357,7 +1370,7 @@
           (m) => m.constructorName == constructorName,
           orElse: () {
             // TODO(ahe): What receiver to use?
-            throw new NoSuchMethodError(
+            throw new NoSuchStaticMethodError.missingConstructor(
                 this, constructorName, positionalArguments, namedArguments);
           });
       JsCache.update(_jsConstructorCache, n(constructorName), mirror);
@@ -1617,8 +1630,9 @@
 
   MethodMirror get function {
     String cacheName = Primitives.mirrorFunctionCacheName;
-    JsMethodMirror cachedFunction =
-        JS('JsMethodMirror|Null', r'#.constructor[#]', reflectee, cacheName);
+    JsMethodMirror cachedFunction;
+    // TODO(ahe): Restore caching.
+    //= JS('JsMethodMirror|Null', r'#.constructor[#]', reflectee, cacheName);
     if (cachedFunction != null) return cachedFunction;
     disableTreeShaking();
     // TODO(ahe): What about optional parameters (named or not).
@@ -1685,7 +1699,7 @@
   final bool isOperator;
   DeclarationMirror _owner;
   List _metadata;
-  var _returnType;
+  TypeMirror _returnType;
   UnmodifiableListView<ParameterMirror> _parameters;
 
   JsMethodMirror(Symbol simpleName,
@@ -1741,26 +1755,51 @@
 
   TypeMirror get returnType {
     metadata; // Compute _returnType as a side-effect of extracting metadata.
-    return typeMirrorFromRuntimeTypeRepresentation(owner, _returnType);
+    return _returnType;
   }
 
   List<InstanceMirror> get metadata {
     if (_metadata == null) {
       var raw = extractMetadata(_jsFunction);
       var formals = new List(_parameterCount);
-      if (!raw.isEmpty) {
-        _returnType = raw[0];
-        int parameterLength = 1 + _parameterCount * 2;
-        int formalsCount = 0;
-        for (int i = 1; i < parameterLength; i += 2) {
-          var name = raw[i];
-          var type = raw[i + 1];
-          formals[formalsCount++] = new JsParameterMirror(name, this, type);
+      ReflectionInfo info = new ReflectionInfo(_jsFunction);
+      if (info != null) {
+        assert(_parameterCount
+               == info.requiredParameterCount + info.optionalParameterCount);
+        var functionType = info.functionType;
+        var type;
+        if (functionType is int) {
+          type = new JsFunctionTypeMirror(info.computeFunctionRti(null), this);
+          assert(_parameterCount == type.parameters.length);
+        } else if (isTopLevel) {
+          type = new JsFunctionTypeMirror(info.computeFunctionRti(null), owner);
+        } else {
+          TypeMirror ownerType = owner;
+          JsClassMirror ownerClass = ownerType.originalDeclaration;
+          type = new JsFunctionTypeMirror(
+              info.computeFunctionRti(ownerClass._jsConstructorOrInterceptor),
+              owner);
         }
-        raw = raw.sublist(parameterLength);
-      } else {
-        for (int i = 0; i < _parameterCount; i++) {
-          formals[i] = new JsParameterMirror('argument$i', this, null);
+        // Constructors aren't reified with their return type.
+        if (isConstructor) {
+          _returnType = owner;
+        } else {
+          _returnType = type.returnType;
+        }
+        int i = 0;
+        bool isNamed = info.areOptionalParametersNamed;
+        for (JsParameterMirror parameter in type.parameters) {
+          var name = info.parameterName(i);
+          var p;
+          if (i < info.requiredParameterCount) {
+            p = new JsParameterMirror(name, this, parameter._type);
+          } else {
+            var defaultValue = info.defaultValue(i);
+            p = new JsParameterMirror(
+                name, this, parameter._type,
+                isOptional: true, isNamed: isNamed, defaultValue: defaultValue);
+          }
+          formals[i++] = p;
         }
       }
       _parameters = new UnmodifiableListView<ParameterMirror>(formals);
@@ -1819,6 +1858,9 @@
   // Abstract methods are tree-shaken away.
   bool get isAbstract => false;
 
+  // TODO(ahe, 14633): This might not be true for all cases.
+  bool get isSynthetic => false;
+
   // TODO(ahe): Test this.
   bool get isRegularMethod => !isGetter && !isSetter && !isConstructor;
 
@@ -1843,8 +1885,20 @@
   // A JS object representing the type.
   final _type;
 
-  JsParameterMirror(String unmangledName, this.owner, this._type)
-      : super(s(unmangledName));
+  final bool isOptional;
+
+  final bool isNamed;
+
+  final int _defaultValue;
+
+  JsParameterMirror(String unmangledName,
+                    this.owner,
+                    this._type,
+                    {this.isOptional: false,
+                     this.isNamed: false,
+                     defaultValue})
+      : _defaultValue = defaultValue,
+        super(s(unmangledName));
 
   String get _prettyName => 'ParameterMirror';
 
@@ -1858,19 +1912,14 @@
   // TODO(ahe): Implement this.
   bool get isFinal => false;
 
+  // TODO(ahe): Implement this.
   bool get isConst => false;
 
-  // TODO(ahe): Implement this.
-  bool get isOptional => false;
+  bool get hasDefaultValue => _defaultValue != null;
 
-  // TODO(ahe): Implement this.
-  bool get isNamed => false;
-
-  // TODO(ahe): Implement this.
-  bool get hasDefaultValue => false;
-
-  // TODO(ahe): Implement this.
-  get defaultValue => null;
+  get defaultValue {
+    return hasDefaultValue ? reflect(getMetadata(_defaultValue)) : null;
+  }
 
   // TODO(ahe): Implement this.
   List<InstanceMirror> get metadata => throw new UnimplementedError();
@@ -1973,7 +2022,7 @@
     if (_isVoid) return _cachedReturnType = JsMirrorSystem._voidType;
     if (!_hasReturnType) return _cachedReturnType = JsMirrorSystem._dynamicType;
     return _cachedReturnType =
-          typeMirrorFromRuntimeTypeRepresentation(this, _returnType);
+        typeMirrorFromRuntimeTypeRepresentation(owner, _returnType);
   }
 
   List<ParameterMirror> get parameters {
@@ -2058,23 +2107,25 @@
   throw new ArgumentError('Type variable not present in list.');
 }
 
-getMetadata(int index) => JS('', 'init.metadata[#]', index);
-
 TypeMirror typeMirrorFromRuntimeTypeRepresentation(
     DeclarationMirror owner,
     var /*int|List|JsFunction*/ type) {
+  // TODO(ahe): This method might benefit from using convertRtiToRuntimeType
+  // instead of working on strings.
   ClassMirror ownerClass;
   DeclarationMirror context = owner;
-    while(context != null) {
+  while (context != null) {
     if (context is ClassMirror) {
       ownerClass = context;
       break;
     }
+    // TODO(ahe): Get type parameters and arguments from typedefs.
+    if (context is TypedefMirror) break;
     context = context.owner;
   }
 
   String representation;
-  if (type == null){
+  if (type == null) {
     return JsMirrorSystem._dynamicType;
   } else if (ownerClass == null) {
     representation = runtimeTypeToString(type);
@@ -2134,7 +2185,13 @@
   preserveMetadata();
   var metadataFunction = JS('', '#["@"]', victim);
   if (metadataFunction != null) return JS('', '#()', metadataFunction);
-  if (JS('String', 'typeof #', victim) != 'function') return const [];
+  if (JS('bool', 'typeof # != "function"', victim)) return const [];
+  if (JS('bool', '# in #', r'$metadataIndex', victim)) {
+    return JSArray.markFixedList(
+        JS('JSExtendableArray',
+           r'#.$reflectionInfo.splice(#.$metadataIndex)', victim, victim))
+        .map((int i) => getMetadata(i)).toList();
+  }
   String source = JS('String', 'Function.prototype.toString.call(#)', victim);
   int index = source.lastIndexOf(new RegExp('"[0-9,]*";?[ \n\r]*}'));
   if (index == -1) return const [];
@@ -2214,6 +2271,33 @@
   return firstChar == '*' || firstChar == '+';
 }
 
+class NoSuchStaticMethodError extends Error implements NoSuchMethodError {
+  static const int MISSING_CONSTRUCTOR = 0;
+  final ClassMirror _cls;
+  final Symbol _name;
+  final List _positionalArguments;
+  final Map<Symbol, dynamic> _namedArguments;
+  final int _kind;
+
+  NoSuchStaticMethodError.missingConstructor(
+      this._cls,
+      this._name,
+      this._positionalArguments,
+      this._namedArguments)
+      : _kind = MISSING_CONSTRUCTOR;
+
+  String toString() {
+    switch(_kind) {
+    case MISSING_CONSTRUCTOR:
+      return
+          "NoSuchMethodError: No constructor named '${n(_name)}' in class"
+          " '${n(_cls.qualifiedName)}'.";
+    default:
+      return 'NoSuchMethodError';
+    }
+  }
+}
+
 // Copied from package "unmodifiable_collection".
 // TODO(14314): Move to dart:collection.
 class UnmodifiableMapView<K, V> implements Map<K, V> {
@@ -2253,13 +2337,3 @@
 
   void clear() => _throw();
 }
-
-// TODO(ahe): Remove this class and call noSuchMethod instead.
-class UnimplementedNoSuchMethodError extends Error
-    implements NoSuchMethodError {
-  final String _message;
-
-  UnimplementedNoSuchMethodError(this._message);
-
-  String toString() => "Unsupported operation: $_message";
-}
diff --git a/sdk/lib/_internal/lib/js_names.dart b/sdk/lib/_internal/lib/js_names.dart
index 90ad3cf..6aa3632 100644
--- a/sdk/lib/_internal/lib/js_names.dart
+++ b/sdk/lib/_internal/lib/js_names.dart
@@ -4,9 +4,13 @@
 
 library dart._js_names;
 
-import 'dart:_foreign_helper' show JS, JS_GET_NAME;
+import 'dart:_foreign_helper' show
+    JS,
+    JS_GET_NAME;
 
-import 'dart:_js_helper' show JsCache;
+import 'dart:_js_helper' show
+    JsCache,
+    NoInline;
 
 import 'dart:_interceptors' show JSArray;
 
@@ -65,6 +69,7 @@
   return result;
 }
 
+@NoInline()
 List extractKeys(victim) {
   var result = JS('', '''
 (function(victim, hasOwnProperty) {
diff --git a/sdk/lib/_internal/lib/js_number.dart b/sdk/lib/_internal/lib/js_number.dart
index d389a93..b6606f0 100644
--- a/sdk/lib/_internal/lib/js_number.dart
+++ b/sdk/lib/_internal/lib/js_number.dart
@@ -201,14 +201,21 @@
   bool _isInt32(value) => JS('bool', '(# | 0) === #', value, value);
 
   num operator ~/(num other) {
+    if (false) _tdivFast(other); // Ensure resolution.
     if (_isInt32(this) && _isInt32(other) && 0 != other && -1 != other) {
       return JS('num', r'(# / #) | 0', this, other);
     } else {
-      return _slowTdiv(other);
+      return _tdivSlow(other);
     }
   }
 
-  num _slowTdiv(num other) {
+  num _tdivFast(num other) {
+    return _isInt32(this)
+        ? JS('num', r'(# / #) | 0', this, other)
+        : (JS('num', r'# / #', this, other)).toInt();
+  }
+
+  num _tdivSlow(num other) {
     if (other is !num) throw new ArgumentError(other);
     return (JS('num', r'# / #', this, other)).toInt();
   }
@@ -221,30 +228,49 @@
   num operator <<(num other) {
     if (other is !num) throw new ArgumentError(other);
     if (JS('num', '#', other) < 0) throw new ArgumentError(other);
+    return _shlPositive(other);
+  }
+
+  num _shlPositive(num other) {
     // JavaScript only looks at the last 5 bits of the shift-amount. Shifting
     // by 33 is hence equivalent to a shift by 1.
-    if (JS('bool', r'# > 31', other)) return 0;
-    return JS('JSUInt32', r'(# << #) >>> 0', this, other);
+    return JS('bool', r'# > 31', other)
+        ? 0
+        : JS('JSUInt32', r'(# << #) >>> 0', this, other);
   }
 
   num operator >>(num other) {
+    if (false) _shrReceiverPositive(other); 
     if (other is !num) throw new ArgumentError(other);
     if (JS('num', '#', other) < 0) throw new ArgumentError(other);
-    if (JS('num', '#', this) > 0) {
-      // JavaScript only looks at the last 5 bits of the shift-amount. In JS
-      // shifting by 33 is hence equivalent to a shift by 1. Shortcut the
-      // computation when that happens.
-      if (JS('bool', r'# > 31', other)) return 0;
-      // Given that 'a' is positive we must not use '>>'. Otherwise a number
-      // that has the 31st bit set would be treated as negative and shift in
-      // ones.
-      return JS('JSUInt32', r'# >>> #', this, other);
-    }
-    // For negative numbers we just clamp the shift-by amount. 'a' could be
-    // negative but not have its 31st bit set. The ">>" would then shift in
-    // 0s instead of 1s. Therefore we cannot simply return 0xFFFFFFFF.
-    if (JS('num', '#', other) > 31) other = 31;
-    return JS('JSUInt32', r'(# >> #) >>> 0', this, other);
+    return _shrOtherPositive(other);
+  }
+
+  num _shrOtherPositive(num other) {
+    return JS('num', '#', this) > 0
+        ? _shrBothPositive(other)
+        // For negative numbers we just clamp the shift-by amount.
+        // `this` could be negative but not have its 31st bit set.
+        // The ">>" would then shift in 0s instead of 1s. Therefore
+        // we cannot simply return 0xFFFFFFFF.
+        : JS('JSUInt32', r'(# >> #) >>> 0', this, other > 31 ? 31 : other);
+  }
+
+  num _shrReceiverPositive(num other) {
+    if (JS('num', '#', other) < 0) throw new ArgumentError(other);
+    return _shrBothPositive(other);
+  }
+
+  num _shrBothPositive(num other) {
+    return JS('bool', r'# > 31', other)
+        // JavaScript only looks at the last 5 bits of the shift-amount. In JS
+        // shifting by 33 is hence equivalent to a shift by 1. Shortcut the
+        // computation when that happens.
+        ? 0
+        // Given that `this` is positive we must not use '>>'. Otherwise a
+        // number that has the 31st bit set would be treated as negative and
+        // shift in ones.
+        : JS('JSUInt32', r'# >>> #', this, other);
   }
 
   num operator &(num other) {
diff --git a/sdk/lib/_internal/lib/js_rti.dart b/sdk/lib/_internal/lib/js_rti.dart
index d090dea..3c4da5a 100644
--- a/sdk/lib/_internal/lib/js_rti.dart
+++ b/sdk/lib/_internal/lib/js_rti.dart
@@ -177,6 +177,7 @@
       return onTypeVariable(type);
     }
   } else {
+    // TODO(ahe): Handle function types, and be sure to always return a string.
     return null;
   }
 }
@@ -355,73 +356,6 @@
   return true;
 }
 
-Object functionSubtypeCast(Object object, String signatureName,
-                           String contextName, var context,
-                           var typeArguments) {
-  if (!checkFunctionSubtype(object, signatureName,
-                            contextName, context, typeArguments)) {
-    String actualType = Primitives.objectTypeName(object);
-    // TODO(johnniwinther): Provide better function type naming.
-    String typeName = signatureName;
-    throw new CastErrorImplementation(actualType, typeName);
-  }
-  return object;
-}
-
-Object assertFunctionSubtype(Object object, String signatureName,
-                             String contextName, var context,
-                             var typeArguments) {
-  if (!checkFunctionSubtype(object, signatureName,
-      contextName, context, typeArguments)) {
-    // TODO(johnniwinther): Provide better function type naming.
-    String typeName = signatureName;
-    throw new TypeErrorImplementation(object, typeName);
-  }
-  return object;
-}
-
-/**
- * Checks that the type of [target] is a subtype of the function type denoted by
- * [signatureName]. If the type contains type variables, [contextName] holds the
- * name of the class where these were declared and either [context] holds the
- * object in which the runtime values of these can be found or [typeArguments]
- * contains these values as a list of runtime type information.
- */
-bool checkFunctionSubtype(var target, String signatureName,
-                          String contextName, var context,
-                          var typeArguments) {
-  if (isNull(target)) return true;
-  var interceptor = getInterceptor(target);
-  if (hasField(interceptor, '${JS_OPERATOR_IS_PREFIX()}_$signatureName')) {
-    return true;
-  }
-  var signatureLocation = JS_CURRENT_ISOLATE();
-  if (isNotNull(contextName)) {
-    signatureLocation = getField(JS('=Object', 'init.allClasses'), contextName);
-  }
-  var typeSignature =
-      getField(signatureLocation, '${JS_SIGNATURE_NAME()}_$signatureName');
-  if (isNull(typeSignature)) {
-    // All checks can be determined statically so the type signature has not
-    // been computed.
-    return false;
-  }
-  var targetSignatureFunction = getField(interceptor, '${JS_SIGNATURE_NAME()}');
-  if (isNull(targetSignatureFunction)) return false;
-  var targetSignature = invokeOn(targetSignatureFunction, interceptor, null);
-  if (isJsFunction(typeSignature)) {
-    if (isNotNull(typeArguments)) {
-      typeSignature = invoke(typeSignature, typeArguments);
-    } else if (isNotNull(context)) {
-      typeSignature =
-          invoke(typeSignature, getRuntimeTypeArguments(context, contextName));
-    } else {
-      typeSignature = invoke(typeSignature, null);
-    }
-  }
-  return isFunctionSubtype(targetSignature, typeSignature);
-}
-
 /**
  * Computes the signature by applying the type arguments of [context] as an
  * instance of [contextName] to the signature function [signature].
@@ -448,7 +382,7 @@
  * See the comment in the beginning of this file for a description of type
  * representations.
  */
-bool checkSubtypeOfRuntimeType(Object o, var t) {
+bool checkSubtypeOfRuntimeType(o, t) {
   if (isNull(o)) return isSupertypeOfNull(t);
   if (isNull(t)) return true;
   // Get the runtime type information from the object here, because we may
@@ -529,11 +463,11 @@
   var typeOfT = isJsArray(t) ? getIndex(t, 0) : t;
   // Check for a subtyping flag.
   var name = runtimeTypeToString(typeOfT);
-  var test = '${JS_OPERATOR_IS_PREFIX()}${name}';
-  if (hasNoField(typeOfS, test)) return false;
   // Get the necessary substitution of the type arguments, if there is one.
   var substitution;
   if (isNotIdentical(typeOfT, typeOfS)) {
+    var test = '${JS_OPERATOR_IS_PREFIX()}${name}';
+    if (hasNoField(typeOfS, test)) return false;
     var field = '${JS_OPERATOR_AS_PREFIX()}${runtimeTypeToString(typeOfT)}';
     substitution = getField(typeOfS, field);
   }
diff --git a/sdk/lib/_internal/lib/js_string.dart b/sdk/lib/_internal/lib/js_string.dart
index 0dd8066..6693821 100644
--- a/sdk/lib/_internal/lib/js_string.dart
+++ b/sdk/lib/_internal/lib/js_string.dart
@@ -17,7 +17,7 @@
     if (index is !int) throw new ArgumentError(index);
     if (index < 0) throw new RangeError.value(index);
     if (index >= length) throw new RangeError.value(index);
-    return JS('int', r'#.charCodeAt(#)', this, index);
+    return JS('JSUInt31', r'#.charCodeAt(#)', this, index);
   }
 
   Iterable<Match> allMatches(String str) {
diff --git a/sdk/lib/_internal/pub/lib/src/barback.dart b/sdk/lib/_internal/pub/lib/src/barback.dart
index bd06b66..6f14935 100644
--- a/sdk/lib/_internal/pub/lib/src/barback.dart
+++ b/sdk/lib/_internal/pub/lib/src/barback.dart
@@ -40,7 +40,7 @@
 ///
 /// Whenever a new non-patch version of barback is published, this *must* be
 /// incremented to synchronize with that.
-final supportedVersion = new Version(0, 10, 0);
+final supportedVersion = new Version(0, 11, 0);
 
 /// An identifier for a transformer and the configuration that will be passed to
 /// it.
diff --git a/sdk/lib/_internal/pub/lib/src/command/lish.dart b/sdk/lib/_internal/pub/lib/src/command/lish.dart
index 1cc95ac..6d75814 100644
--- a/sdk/lib/_internal/pub/lib/src/command/lish.dart
+++ b/sdk/lib/_internal/pub/lib/src/command/lish.dart
@@ -94,15 +94,6 @@
   }
 
   Future onRun() {
-    // Sanity check. Don't push to the production server when running tests or
-    // developing on pub.
-    if (sdk.isBleedingEdge &&
-        server.toString() == HostedSource.defaultUrl &&
-        !dryRun) {
-      log.error('Cannot publish to $server from bleeding edge pub!');
-      return null;
-    }
-
     if (force && dryRun) {
       log.error('Cannot use both --force and --dry-run.');
       this.printUsage();
diff --git a/sdk/lib/_internal/pub/lib/src/io.dart b/sdk/lib/_internal/pub/lib/src/io.dart
index 533790c..bc6ffd1 100644
--- a/sdk/lib/_internal/pub/lib/src/io.dart
+++ b/sdk/lib/_internal/pub/lib/src/io.dart
@@ -187,17 +187,10 @@
 /// at that path. Completes when the file is done being written.
 Future<String> createFileFromStream(Stream<List<int>> stream, String file) {
   // TODO(nweiz): remove extra logging when we figure out the windows bot issue.
-  log.io("Creating $file from stream (is the stream broadcast? "
-      "${stream.isBroadcast}).");
-
-  var pair = tee(stream);
-  pair.first.listen(
-      (data) => log.io("stream emitted ${data.length} bytes"),
-      onError: (error, st) => log.io("stream emitted $error\n$st"),
-      onDone: () => log.io("stream is done"));
+  log.io("Creating $file from stream.");
 
   return _descriptorPool.withResource(() {
-    return pair.last.pipe(new File(file).openWrite()).then((_) {
+    return stream.pipe(new File(file).openWrite()).then((_) {
       log.fine("Created $file from stream.");
       return file;
     });
diff --git a/sdk/lib/_internal/pub/lib/src/log.dart b/sdk/lib/_internal/pub/lib/src/log.dart
index 10f220d..86c2b7f 100644
--- a/sdk/lib/_internal/pub/lib/src/log.dart
+++ b/sdk/lib/_internal/pub/lib/src/log.dart
@@ -5,18 +5,28 @@
 /// Message logging.
 library pub.log;
 
-import 'dart:io';
 import 'dart:async';
+import 'dart:collection';
+import 'dart:io';
 
 import 'io.dart';
+import 'transcript.dart';
 import 'utils.dart';
 
 typedef LogFn(Entry entry);
 final Map<Level, LogFn> _loggers = new Map<Level, LogFn>();
 
+/// In cases where there's a ton of log spew, make sure we don't eat infinite
+/// memory.
+///
+/// This can occur when the backtracking solver stumbles into a pathological
+/// dependency graph. It generally will find a solution, but it may log
+/// thousands and thousands of entries to get there.
+const _MAX_TRANSCRIPT = 10000;
+
 /// The list of recorded log messages. Will only be recorded if
 /// [recordTranscript()] is called.
-List<Entry> _transcript;
+Transcript<Entry> _transcript;
 
 /// The timer used to write "..." during a progress log.
 Timer _progressTimer;
@@ -176,7 +186,7 @@
 
 /// Enables recording of log entries.
 void recordTranscript() {
-  _transcript = <Entry>[];
+  _transcript = new Transcript<Entry>(_MAX_TRANSCRIPT);
 }
 
 /// If [recordTranscript()] was called, then prints the previously recorded log
@@ -185,9 +195,9 @@
   if (_transcript == null) return;
 
   stderr.writeln('---- Log transcript ----');
-  for (var entry in _transcript) {
-    _logToStderrWithLabel(entry);
-  }
+  _transcript.forEach(_logToStderrWithLabel, (discarded) {
+    stderr.writeln('---- ($discarded discarded) ----');
+  });
   stderr.writeln('---- End log transcript ----');
 }
 
diff --git a/sdk/lib/_internal/pub/lib/src/sdk.dart b/sdk/lib/_internal/pub/lib/src/sdk.dart
index c99f516..bd8314b 100644
--- a/sdk/lib/_internal/pub/lib/src/sdk.dart
+++ b/sdk/lib/_internal/pub/lib/src/sdk.dart
@@ -12,11 +12,6 @@
 import 'io.dart';
 import 'version.dart';
 
-/// Matches an Eclipse-style SDK version number. This is four dotted numbers
-/// (major, minor, patch, build) with an optional suffix attached to the build
-/// number.
-final _versionPattern = new RegExp(r'^(\d+)\.(\d+)\.(\d+)\.(\d+.*)$');
-
 /// Gets the path to the root directory of the SDK.
 String get rootDirectory {
   // Assume the Dart executable is always coming from the SDK.
@@ -29,30 +24,6 @@
 /// different SDK versions.
 Version version = _getVersion();
 
-/// Is `true` if the current SDK is an unreleased bleeding edge version.
-bool get isBleedingEdge {
-  // The live build is locked to the magical old number "0.1.2+<stuff>".
-  return version.major == 0 && version.minor == 1 && version.patch == 2;
-}
-
-/// Parse an Eclipse-style version number using the SDK's versioning convention.
-Version parseVersion(String version) {
-  // Given a version file like: 0.1.2.0_r17495
-  // We create a semver like:   0.1.2+0.r17495
-  var match = _versionPattern.firstMatch(version);
-  if (match == null) {
-    throw new FormatException("The Dart SDK's 'version' file was not in a "
-        "format pub could recognize. Found: $version");
-  }
-
-  // Semantic versions cannot use "_".
-  var build = match[4].replaceAll('_', '.');
-
-  return new Version(
-      int.parse(match[1]), int.parse(match[2]), int.parse(match[3]),
-      build: build);
-}
-
 /// Determine the SDK's version number.
 Version _getVersion() {
   // Some of the pub integration tests require an SDK version number, but the
@@ -64,5 +35,5 @@
   // Read the "version" file.
   var revisionPath = path.join(rootDirectory, "version");
   var version = readTextFile(revisionPath).trim();
-  return parseVersion(version);
+  return new Version.parse(version);
 }
diff --git a/sdk/lib/_internal/pub/lib/src/solver/backtracking_solver.dart b/sdk/lib/_internal/pub/lib/src/solver/backtracking_solver.dart
index 5ff0d08..882ef36 100644
--- a/sdk/lib/_internal/pub/lib/src/solver/backtracking_solver.dart
+++ b/sdk/lib/_internal/pub/lib/src/solver/backtracking_solver.dart
@@ -298,19 +298,23 @@
     // Generate a reverse dependency graph. For each package, create edges to
     // each package that depends on it.
     var dependers = new Map<String, Set<String>>();
+
+    addDependencies(name, deps) {
+      dependers.putIfAbsent(name, () => new Set<String>());
+      for (var dep in deps) {
+        dependers.putIfAbsent(dep.name, () => new Set<String>()).add(name);
+      }
+    }
+
     for (var i = 0; i < _selected.length; i++) {
       var id = _selected[i].current;
       var pubspec = cache.getCachedPubspec(id);
-      if (pubspec == null) continue;
-      dependers.putIfAbsent(id.name, () => new Set<String>());
-
-      for (var dep in pubspec.dependencies) {
-        var depender = dependers.putIfAbsent(dep.name,
-            () => new Set<String>());
-        depender.add(id.name);
-      }
+      if (pubspec != null) addDependencies(id.name, pubspec.dependencies);
     }
 
+    // Include the root package's dependencies.
+    addDependencies(root.name, root.immediateDependencies);
+
     // Now walk the depending graph to see which packages transitively depend
     // on [dependency].
     var visited = new Set<String>();
@@ -473,7 +477,7 @@
 
         // See if it's possible for a package to match that constraint.
         if (constraint.isEmpty) {
-          _solver.logSolve('disjoint constraints on ${dep.name}}');
+          _solver.logSolve('disjoint constraints on ${dep.name}');
           throw new DisjointConstraintException(depender, dependencies);
         }
 
@@ -646,12 +650,6 @@
 /// Ensures that if [pubspec] has an SDK constraint, then it is compatible
 /// with the current SDK. Throws a [SolveFailure] if not.
 void _validateSdkConstraint(Pubspec pubspec) {
-  // If the user is running a continouous build of the SDK, just disable SDK
-  // constraint checking entirely. The actual version number you get is
-  // impossibly old and not correct. We'll just assume users on continuous
-  // know what they're doing.
-  if (sdk.isBleedingEdge) return;
-
   if (pubspec.environment.sdkVersion.allows(sdk.version)) return;
 
   throw new BadSdkVersionException(pubspec.name,
diff --git a/sdk/lib/_internal/pub/lib/src/solver/dependency_queue.dart b/sdk/lib/_internal/pub/lib/src/solver/dependency_queue.dart
index 3c64e53..c462120 100644
--- a/sdk/lib/_internal/pub/lib/src/solver/dependency_queue.dart
+++ b/sdk/lib/_internal/pub/lib/src/solver/dependency_queue.dart
@@ -65,6 +65,10 @@
       }
     }
 
+    // Sort the selected/locked packages by name just to ensure the solver is
+    // deterministic.
+    presorted.sort((a, b) => a.name.compareTo(b.name));
+
     return new DependencyQueue._(solver, new Queue<PackageDep>.from(presorted),
         remaining);
   }
diff --git a/sdk/lib/_internal/pub/lib/src/transcript.dart b/sdk/lib/_internal/pub/lib/src/transcript.dart
new file mode 100644
index 0000000..ce3aab6
--- /dev/null
+++ b/sdk/lib/_internal/pub/lib/src/transcript.dart
@@ -0,0 +1,73 @@
+// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+library pub.transcript;
+
+import 'dart:collection';
+
+/// A rolling transcript of entries of type [T].
+///
+/// It has a maximum number of entries. If entries are added that exceed that
+/// it discards entries from the *middle* of the transcript. Generally, in logs,
+/// the first and last entries are the most important, so it maintains those.
+class Transcript<T> {
+  /// The maximum number of transcript entries.
+  final int max;
+
+  /// The number of entries that were discarded after reaching [max].
+  int get discarded => _discarded;
+  int _discarded = 0;
+
+  /// The earliest half of the entries.
+  ///
+  /// This will be empty until the maximum number of entries is hit at which
+  /// point the oldest half of the entries will be moved from [_newest] to
+  /// here.
+  final _oldest = new List<T>();
+
+  /// The most recent half of the entries.
+  final _newest = new Queue<T>();
+
+  /// Creates a new [Transcript] that can hold up to [max] entries.
+  Transcript(this.max);
+
+  /// Adds [entry] to the transcript.
+  ///
+  /// If the transcript already has the maximum number of entries, discards one
+  /// from the middle.
+  void add(T entry) {
+    if (discarded > 0) {
+      // We're already in "rolling" mode.
+      _newest.removeFirst();
+      _discarded++;
+    } else if (_newest.length == max) {
+      // We are crossing the threshold where we have to discard items. Copy
+      // the first half over to the oldest list.
+      while (_newest.length > max ~/ 2) {
+        _oldest.add(_newest.removeFirst());
+      }
+
+      // Discard the middle item.
+      _newest.removeFirst();
+      _discarded++;
+    }
+
+    _newest.add(entry);
+  }
+
+  /// Traverses the entries in the transcript from oldest to newest.
+  ///
+  /// Invokes [onEntry] for each item. When it reaches the point in the middle
+  /// where excess entries where dropped, invokes [onGap] with the number of
+  /// dropped entries. If no more than [max] entries were added, does not
+  /// invoke [onGap].
+  void forEach(void onEntry(T entry), [void onGap(int)]) {
+    if (_oldest.isNotEmpty) {
+      _oldest.forEach(onEntry);
+      if (onGap != null) onGap(discarded);
+    }
+
+    _newest.forEach(onEntry);
+  }
+}
\ No newline at end of file
diff --git a/sdk/lib/_internal/pub/test/sdk_test.dart b/sdk/lib/_internal/pub/test/sdk_test.dart
deleted file mode 100644
index 6cec3e9..0000000
--- a/sdk/lib/_internal/pub/test/sdk_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-library pub_tests;
-
-import 'package:unittest/unittest.dart';
-
-import '../lib/src/sdk.dart' as sdk;
-import '../lib/src/version.dart';
-
-main() {
-  group("parseVersion()", () {
-    test("parses a release-style version", () {
-      expect(sdk.parseVersion("0.1.2.0_r17645"),
-          equals(new Version.parse("0.1.2+0.r17645")));
-    });
-
-    test("parses a dev-only style version", () {
-      // The "version" file generated on developer builds is a little funky and
-      // we need to make sure we don't choke on it.
-      expect(sdk.parseVersion("0.1.2.0_r16279_bobross"),
-          equals(new Version.parse("0.1.2+0.r16279.bobross")));
-    });
-  });
-}
diff --git a/sdk/lib/_internal/pub/test/transcript_test.dart b/sdk/lib/_internal/pub/test/transcript_test.dart
new file mode 100644
index 0000000..34ea130
--- /dev/null
+++ b/sdk/lib/_internal/pub/test/transcript_test.dart
@@ -0,0 +1,60 @@
+// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+library version_test;
+
+import 'package:unittest/unittest.dart';
+import 'test_pub.dart';
+import '../lib/src/transcript.dart';
+
+main() {
+  initConfig();
+
+  test("discards from the middle once it reaches the maximum", () {
+    var transcript = new Transcript<String>(4);
+    forEachToString() {
+      var result = "";
+      transcript.forEach((entry) => result += entry, (n) => result += "[$n]");
+      return result;
+    }
+
+    expect(forEachToString(), equals(""));
+    transcript.add("a");
+    expect(forEachToString(), equals("a"));
+    transcript.add("b");
+    expect(forEachToString(), equals("ab"));
+    transcript.add("c");
+    expect(forEachToString(), equals("abc"));
+    transcript.add("d");
+    expect(forEachToString(), equals("abcd"));
+    transcript.add("e");
+    expect(forEachToString(), equals("ab[1]de"));
+    transcript.add("f");
+    expect(forEachToString(), equals("ab[2]ef"));
+  });
+
+  test("does not discard if it doesn't reach the maximum", () {
+    var transcript = new Transcript<String>(40);
+    forEachToString() {
+      var result = "";
+      transcript.forEach((entry) => result += entry, (n) => result += "[$n]");
+      return result;
+    }
+
+    expect(forEachToString(), equals(""));
+    transcript.add("a");
+    expect(forEachToString(), equals("a"));
+    transcript.add("b");
+    expect(forEachToString(), equals("ab"));
+    transcript.add("c");
+    expect(forEachToString(), equals("abc"));
+    transcript.add("d");
+    expect(forEachToString(), equals("abcd"));
+    transcript.add("e");
+    expect(forEachToString(), equals("abcde"));
+    transcript.add("f");
+    expect(forEachToString(), equals("abcdef"));
+  });
+
+}
diff --git a/sdk/lib/_internal/pub/test/version_solver_test.dart b/sdk/lib/_internal/pub/test/version_solver_test.dart
index 83551b1..4200480 100644
--- a/sdk/lib/_internal/pub/test/version_solver_test.dart
+++ b/sdk/lib/_internal/pub/test/version_solver_test.dart
@@ -402,6 +402,16 @@
       'a': '1.0.0'
     }
   }, error: couldNotSolve, maxTries: 4);
+
+  // This is a regression test for #15550.
+  testResolve('no version that matches while backtracking', {
+    'myapp 0.0.0': {
+      'a': 'any',
+      'b': '>1.0.0'
+    },
+    'a 1.0.0': {},
+    'b 1.0.0': {}
+  }, error: noVersion(['myapp']), maxTries: 1);
 }
 
 badSource() {
@@ -794,12 +804,6 @@
     'foo': '2.0.0',
     'bar': '2.0.0'
   }, maxTries: 3);
-
-  testResolve('ignores SDK constraints on bleeding edge', {
-    'myapp 0.0.0': {'sdk': badVersion }
-  }, result: {
-    'myapp from root': '0.0.0'
-  }, useBleedingEdgeSdkVersion: true);
 }
 
 void prerelease() {
@@ -989,27 +993,24 @@
 
 testResolve(String description, Map packages, {
     Map lockfile, Map overrides, Map result, FailMatcherBuilder error,
-    int maxTries, bool useBleedingEdgeSdkVersion}) {
+    int maxTries}) {
   _testResolve(test, description, packages, lockfile: lockfile,
-      overrides: overrides, result: result, error: error, maxTries: maxTries,
-      useBleedingEdgeSdkVersion: useBleedingEdgeSdkVersion);
+      overrides: overrides, result: result, error: error, maxTries: maxTries);
 }
 
 solo_testResolve(String description, Map packages, {
     Map lockfile, Map overrides, Map result, FailMatcherBuilder error,
-    int maxTries, bool useBleedingEdgeSdkVersion}) {
+    int maxTries}) {
   log.showSolver();
   _testResolve(solo_test, description, packages, lockfile: lockfile,
-      overrides: overrides, result: result, error: error, maxTries: maxTries,
-      useBleedingEdgeSdkVersion: useBleedingEdgeSdkVersion);
+      overrides: overrides, result: result, error: error, maxTries: maxTries);
 }
 
 _testResolve(void testFn(String description, Function body),
     String description, Map packages, {
     Map lockfile, Map overrides, Map result, FailMatcherBuilder error,
-    int maxTries, bool useBleedingEdgeSdkVersion}) {
+    int maxTries}) {
   if (maxTries == null) maxTries = 1;
-  if (useBleedingEdgeSdkVersion == null) useBleedingEdgeSdkVersion = false;
 
   testFn(description, () {
     var cache = new SystemCache('.');
@@ -1056,12 +1057,6 @@
       });
     }
 
-    // Make a version number like the continuous build's version.
-    var previousVersion = sdk.version;
-    if (useBleedingEdgeSdkVersion) {
-      sdk.version = new Version(0, 1, 2, build: '0_r12345_juser');
-    }
-
     // Resolve the versions.
     var future = resolveVersions(cache.sources, root, lockFile: realLockFile);
 
@@ -1072,12 +1067,6 @@
       matcher = error(maxTries);
     }
 
-    future = future.whenComplete(() {
-      if (useBleedingEdgeSdkVersion) {
-        sdk.version = previousVersion;
-      }
-    });
-
     expect(future, completion(matcher));
   });
 }
diff --git a/sdk/lib/core/date_time.dart b/sdk/lib/core/date_time.dart
index c96c76f..2bd120e 100644
--- a/sdk/lib/core/date_time.dart
+++ b/sdk/lib/core/date_time.dart
@@ -37,7 +37,7 @@
  * You can use these constants to improve code readibility:
  *
  *     DateTime berlinWallFell = new DateTime(1989, DateTime.NOVEMBER, 9);
- *     assert(berlinWallFell.month == DateTime.SATURDAY);
+ *     assert(berlinWallFell.weekday == DateTime.THURSDAY);
  *
  * Day and month values begin at 1, and the week starts on Monday.
  * That is, the constants [JANUARY] and [MONDAY] are both 1.
@@ -79,8 +79,8 @@
  * To find out how much time is between two DateTime objects use
  * [difference], which returns a [Duration] object:
  *
- *     Duration difference = berlinWallFell.difference(dDay);
- *     assert(difference.inDays == 16592);
+ *     Duration difference = berlinWallFell.difference(moonLanding)
+ *     assert(difference.inDays == 7416);
  *
  * ## Other resources
  *
diff --git a/sdk/lib/html/dart2js/html_dart2js.dart b/sdk/lib/html/dart2js/html_dart2js.dart
index a5c5443..5bbd141 100644
--- a/sdk/lib/html/dart2js/html_dart2js.dart
+++ b/sdk/lib/html/dart2js/html_dart2js.dart
@@ -6473,7 +6473,7 @@
   @Experimental()
   Entry getAsEntry() native;
 }
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
@@ -6517,6 +6517,12 @@
   @DocsEditable()
   @Experimental() // untriaged
   void remove(int index) native;
+
+
+  DataTransferItem operator[] (int index) {
+    return JS('DataTransferItem', '#[#]', this, index);
+  }
+
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
@@ -24079,6 +24085,10 @@
 class Storage extends Interceptor
     implements Map<String, String>  native "Storage" {
 
+  void addAll(Map<String, String> other) {
+    other.forEach((k, v) { this[k] = v; });
+  }
+
   // TODO(nweiz): update this when maps support lazy iteration
   bool containsValue(String value) => values.any((e) => e == value);
 
@@ -28727,25 +28737,29 @@
 
   // From WindowTimers
 
+  @JSName('clearInterval')
   @DomName('WorkerGlobalScope.clearInterval')
   @DocsEditable()
   @Experimental() // untriaged
-  void clearInterval(int handle) native;
+  void _clearInterval(int handle) native;
 
+  @JSName('clearTimeout')
   @DomName('WorkerGlobalScope.clearTimeout')
   @DocsEditable()
   @Experimental() // untriaged
-  void clearTimeout(int handle) native;
+  void _clearTimeout(int handle) native;
 
+  @JSName('setInterval')
   @DomName('WorkerGlobalScope.setInterval')
   @DocsEditable()
   @Experimental() // untriaged
-  int setInterval(Object handler, int timeout) native;
+  int _setInterval(Object handler, int timeout) native;
 
+  @JSName('setTimeout')
   @DomName('WorkerGlobalScope.setTimeout')
   @DocsEditable()
   @Experimental() // untriaged
-  int setTimeout(Object handler, int timeout) native;
+  int _setTimeout(Object handler, int timeout) native;
 
   /// Stream of `error` events handled by this [WorkerGlobalScope].
   @DomName('WorkerGlobalScope.onerror')
@@ -30375,13 +30389,13 @@
   // To suppress missing implicit constructor warnings.
   factory _WindowTimers._() { throw new UnsupportedError("Not supported"); }
 
-  void clearInterval(int handle);
+  void _clearInterval(int handle);
 
-  void clearTimeout(int handle);
+  void _clearTimeout(int handle);
 
-  int setInterval(Object handler, int timeout);
+  int _setInterval(Object handler, int timeout);
 
-  int setTimeout(Object handler, int timeout);
+  int _setTimeout(Object handler, int timeout);
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
@@ -30435,6 +30449,10 @@
 
   _AttributeMap(this._element);
 
+  void addAll(Map<String, String> other) {
+    other.forEach((k, v) { this[k] = v; });
+  }
+
   bool containsValue(String value) {
     for (var v in this.values) {
       if (value == v) {
@@ -30591,6 +30609,10 @@
 
   // interface Map
 
+  void addAll(Map<String, String> other) {
+    other.forEach((k, v) { this[k] = v; });
+  }
+
   // TODO: Use lazy iterator when it is available on Map.
   bool containsValue(String value) => values.any((v) => v == value);
 
diff --git a/sdk/lib/html/dartium/html_dartium.dart b/sdk/lib/html/dartium/html_dartium.dart
index 29a417a..be4fb4f 100644
--- a/sdk/lib/html/dartium/html_dartium.dart
+++ b/sdk/lib/html/dartium/html_dartium.dart
@@ -6894,12 +6894,10 @@
   Entry getAsEntry() native "DataTransferItem_webkitGetAsEntry_Callback";
 
 }
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-// WARNING: Do not edit - generated code.
-
 
 @DocsEditable()
 @DomName('DataTransferItemList')
@@ -6949,6 +6947,11 @@
   @Experimental() // untriaged
   void remove(int index) native "DataTransferItemList_remove_Callback";
 
+
+  DataTransferItem operator[] (int index) {
+    return __getter__(index);
+  }
+
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
@@ -25763,6 +25766,10 @@
 class Storage extends NativeFieldWrapperClass2
     implements Map<String, String>  {
 
+  void addAll(Map<String, String> other) {
+    other.forEach((k, v) { this[k] = v; });
+  }
+
   // TODO(nweiz): update this when maps support lazy iteration
   bool containsValue(String value) => values.any((e) => e == value);
 
@@ -27945,13 +27952,13 @@
     if ((blob_OR_source_OR_stream is Blob || blob_OR_source_OR_stream == null)) {
       return _createObjectURL_1(blob_OR_source_OR_stream);
     }
-    if ((blob_OR_source_OR_stream is MediaStream || blob_OR_source_OR_stream == null)) {
+    if ((blob_OR_source_OR_stream is MediaSource || blob_OR_source_OR_stream == null)) {
       return _createObjectURL_2(blob_OR_source_OR_stream);
     }
-    if ((blob_OR_source_OR_stream is MediaSource || blob_OR_source_OR_stream == null)) {
+    if ((blob_OR_source_OR_stream is _WebKitMediaSource || blob_OR_source_OR_stream == null)) {
       return _createObjectURL_3(blob_OR_source_OR_stream);
     }
-    if ((blob_OR_source_OR_stream is _WebKitMediaSource || blob_OR_source_OR_stream == null)) {
+    if ((blob_OR_source_OR_stream is MediaStream || blob_OR_source_OR_stream == null)) {
       return _createObjectURL_4(blob_OR_source_OR_stream);
     }
     throw new ArgumentError("Incorrect number or type of arguments");
@@ -30350,22 +30357,22 @@
   @DomName('WorkerGlobalScope.clearInterval')
   @DocsEditable()
   @Experimental() // untriaged
-  void clearInterval(int handle) native "WorkerGlobalScope_clearInterval_Callback";
+  void _clearInterval(int handle) native "WorkerGlobalScope_clearInterval_Callback";
 
   @DomName('WorkerGlobalScope.clearTimeout')
   @DocsEditable()
   @Experimental() // untriaged
-  void clearTimeout(int handle) native "WorkerGlobalScope_clearTimeout_Callback";
+  void _clearTimeout(int handle) native "WorkerGlobalScope_clearTimeout_Callback";
 
   @DomName('WorkerGlobalScope.setInterval')
   @DocsEditable()
   @Experimental() // untriaged
-  int setInterval(Object handler, int timeout) native "WorkerGlobalScope_setInterval_Callback";
+  int _setInterval(Object handler, int timeout) native "WorkerGlobalScope_setInterval_Callback";
 
   @DomName('WorkerGlobalScope.setTimeout')
   @DocsEditable()
   @Experimental() // untriaged
-  int setTimeout(Object handler, int timeout) native "WorkerGlobalScope_setTimeout_Callback";
+  int _setTimeout(Object handler, int timeout) native "WorkerGlobalScope_setTimeout_Callback";
 
   /// Stream of `error` events handled by this [WorkerGlobalScope].
   @DomName('WorkerGlobalScope.onerror')
@@ -32186,22 +32193,22 @@
   @DomName('WindowTimers.clearInterval')
   @DocsEditable()
   @Experimental() // untriaged
-  void clearInterval(int handle) native "WindowTimers_clearInterval_Callback";
+  void _clearInterval(int handle) native "WindowTimers_clearInterval_Callback";
 
   @DomName('WindowTimers.clearTimeout')
   @DocsEditable()
   @Experimental() // untriaged
-  void clearTimeout(int handle) native "WindowTimers_clearTimeout_Callback";
+  void _clearTimeout(int handle) native "WindowTimers_clearTimeout_Callback";
 
   @DomName('WindowTimers.setInterval')
   @DocsEditable()
   @Experimental() // untriaged
-  int setInterval(Object handler, int timeout) native "WindowTimers_setInterval_Callback";
+  int _setInterval(Object handler, int timeout) native "WindowTimers_setInterval_Callback";
 
   @DomName('WindowTimers.setTimeout')
   @DocsEditable()
   @Experimental() // untriaged
-  int setTimeout(Object handler, int timeout) native "WindowTimers_setTimeout_Callback";
+  int _setTimeout(Object handler, int timeout) native "WindowTimers_setTimeout_Callback";
 
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
@@ -32309,6 +32316,10 @@
 
   _AttributeMap(this._element);
 
+  void addAll(Map<String, String> other) {
+    other.forEach((k, v) { this[k] = v; });
+  }
+
   bool containsValue(String value) {
     for (var v in this.values) {
       if (value == v) {
@@ -32465,6 +32476,10 @@
 
   // interface Map
 
+  void addAll(Map<String, String> other) {
+    other.forEach((k, v) { this[k] = v; });
+  }
+
   // TODO: Use lazy iterator when it is available on Map.
   bool containsValue(String value) => values.any((v) => v == value);
 
@@ -37039,33 +37054,36 @@
                                "is not supported in the browser");
 };
 
- class _Timer implements Timer {
-  var _canceler;
+class _Timer implements Timer {
+  const int _STATE_TIMEOUT = 0;
+  const int _STATE_INTERVAL = 1;
+  var _state;
 
   _Timer(int milliSeconds, void callback(Timer timer), bool repeating) {
-
     if (repeating) {
-      int id = window._setInterval(() {
+      _state = window._setInterval(() {
         callback(this);
-      }, milliSeconds);
-      _canceler = () => window._clearInterval(id);
+      }, milliSeconds) * 2 + _STATE_INTERVAL;
     } else {
-      int id = window._setTimeout(() {
-        _canceler = null;
+      _state = window._setTimeout(() {
+        _state = null;
         callback(this);
-      }, milliSeconds);
-      _canceler = () => window._clearTimeout(id);
+      }, milliSeconds) * 2 + _STATE_TIMEOUT;
     }
   }
 
   void cancel() {
-    if (_canceler != null) {
-      _canceler();
+    if (_state == null) return;
+    int id = _state ~/ 2;
+    if ((_state & 1) == _STATE_TIMEOUT) {
+      window._clearTimeout(id);
+    } else {
+      window._clearInterval(id);
     }
-    _canceler = null;
+    _state = null;
   }
 
-  bool get isActive => _canceler != null;
+  bool get isActive => _state != null;
 }
 
 get _timerFactoryClosure =>
diff --git a/sdk/lib/io/bytes_builder.dart b/sdk/lib/io/bytes_builder.dart
index 7e64f33..e26ae89 100644
--- a/sdk/lib/io/bytes_builder.dart
+++ b/sdk/lib/io/bytes_builder.dart
@@ -98,7 +98,7 @@
   bool get isEmpty => _length == 0;
 
   /**
-   * Returns `true` if the buffer is empty.
+   * Returns `true` if the buffer is not empty.
    */
   bool get isNotEmpty => _length != 0;
 
diff --git a/sdk/lib/io/http_impl.dart b/sdk/lib/io/http_impl.dart
index 756db60..4c6e74b 100644
--- a/sdk/lib/io/http_impl.dart
+++ b/sdk/lib/io/http_impl.dart
@@ -586,7 +586,8 @@
   }
 
   bool _ignoreError(error)
-    => error is SocketException && _outbound is HttpResponse;
+    => (error is SocketException || error is TlsException) &&
+       _outbound is HttpResponse;
 
   _ensureController() {
     if (_controller != null) return;
@@ -2055,7 +2056,13 @@
           _HttpConnection connection = new _HttpConnection(socket, this);
           _connections.add(connection);
         },
-        onError: _controller.addError,
+        onError: (error) {
+          // Ignore HandshakeExceptions as they are bound to a single request,
+          // and are not fatal for the server.
+          if (error is! HandshakeException) {
+            _controller.addError(error);
+          }
+        },
         onDone: _controller.close);
     return _controller.stream.listen(onData,
                                      onError: onError,
diff --git a/sdk/lib/io/socket.dart b/sdk/lib/io/socket.dart
index 2f78958..b619fec 100644
--- a/sdk/lib/io/socket.dart
+++ b/sdk/lib/io/socket.dart
@@ -323,6 +323,11 @@
    */
   static const SocketOption TCP_NODELAY = const SocketOption._(0);
 
+  static const SocketOption _IP_MULTICAST_LOOP = const SocketOption._(1);
+  static const SocketOption _IP_MULTICAST_HOPS = const SocketOption._(2);
+  static const SocketOption _IP_MULTICAST_IF = const SocketOption._(3);
+  static const SocketOption _IP_BROADCAST = const SocketOption._(4);
+
   const SocketOption._(this._value);
   final _value;
 }
@@ -506,6 +511,136 @@
 }
 
 
+/**
+ * Datagram package. Data send to and received from datagram sockets
+ * contains the internet address and port of the destination or source
+ * togeter with the data.
+ */
+class Datagram {
+  List<int> data;
+  InternetAddress address;
+  int port;
+
+  Datagram(this.data, this.address, this.port);
+}
+
+
+/**
+ * The [RawDatagramSocket] is a low-level interface to an UDP socket,
+ * exposing the raw events signaled by the system. It's a [Stream] of
+ * [RawSocketEvent]s.
+ *
+ * Note that the event [RawSocketEvent.READ_CLOSED] will never be
+ * received as an UDP socket cannot be closed by a remote peer.
+ */
+abstract class RawDatagramSocket extends Stream<RawSocketEvent> {
+  /**
+   * Creates a new raw datagram socket binding it to an address and
+   * port.
+   */
+  external static Future<RawDatagramSocket> bind(
+      host, int port, {bool reuseAddress: true});
+
+  /**
+   * Returns the port used by this socket.
+   */
+  int get port;
+
+  /**
+   * Returns the address used by this socket.
+   */
+  InternetAddress get address;
+
+  /**
+   * Close the datagram socket.
+   */
+  void close();
+
+  /**
+   * Send a datagram.
+   *
+   * Returns the number of bytes written. This will always be either
+   * the size of [buffer] or `0`.
+   */
+  int send(List<int> buffer, InternetAddress address, int port);
+
+  /**
+   * Receive a datagram. If there are no datagrams available `null` is
+   * returned.
+   */
+  Datagram receive();
+
+  /**
+   * Join a multicast group.
+   *
+   * If an error occur when trying to join the multicast group an
+   * exception is thrown.
+   */
+  void joinMulticast(InternetAddress group, {NetworkInterface interface});
+
+  /**
+   * Leave a multicast group.
+   *
+   * If an error occur when trying to join the multicase group an
+   * exception is thrown.
+   */
+  void leaveMulticast(InternetAddress group, {NetworkInterface interface});
+
+  /**
+   * Set or get, if the [RawDatagramSocket] should listen for
+   * [RawSocketEvent.READ] events. Default is [true].
+   */
+  bool readEventsEnabled;
+
+  /**
+   * Set or get, if the [RawDatagramSocket] should listen for
+   * [RawSocketEvent.WRITE] events. Default is [true].  This is a
+   * one-shot listener, and writeEventsEnabled must be set to true
+   * again to receive another write event.
+   */
+  bool writeEventsEnabled;
+
+  /**
+   * Set or get, whether multicast traffic is looped back to the host.
+   *
+   * By default multicast loopback is enabled.
+   */
+  bool multicastLoopback;
+
+  /**
+   * Set or get, the maximum network hops for multicast packages
+   * originating from this socket.
+   *
+   * For IPv4 this is referred to as TTL (time to live).
+   *
+   * By default this value is 1 causing multicast traffic to stay on
+   * the local network.
+   */
+  int multicastHops;
+
+  /**
+   * Set or get, the network interface used for outgoing multicast packages.
+   *
+   * A value of `null`indicate that the system chooses the network
+   * interface to use.
+   *
+   * By default this value is `null`
+   */
+  NetworkInterface multicastInterface;
+
+  /**
+   * Set or get, whether IPv4 broadcast is enabled.
+   *
+   * IPv4 broadcast needs to be enabled by the sender for sending IPv4
+   * broadcast packages. By default IPv4 broadcast is disabled.
+   *
+   * For IPv6 there is no general broadcast mechanism. Use multicast
+   * instead.
+   */
+  bool broadcastEnabled;
+}
+
+
 class SocketException implements IOException {
   final String message;
   final OSError osError;
diff --git a/sdk/lib/io/stdio.dart b/sdk/lib/io/stdio.dart
index b0e246d..ab2f03a 100644
--- a/sdk/lib/io/stdio.dart
+++ b/sdk/lib/io/stdio.dart
@@ -121,7 +121,12 @@
   }
 
   /**
-   * Enable or disable echo mode on the [Stdin].
+   * Check if echo mode is enabled on [stdin].
+   */
+  external bool get echoMode;
+
+  /**
+   * Enable or disable echo mode on [stdin].
    *
    * If disabled, input from to console will not be echoed.
    *
@@ -130,7 +135,12 @@
   external void set echoMode(bool enabled);
 
   /**
-   * Enable or disable line mode on the [Stdin].
+   * Check if line mode is enabled on [stdin].
+   */
+  external bool get lineMode;
+
+  /**
+   * Enable or disable line mode on [stdin].
    *
    * If enabled, characters are delayed until a new-line character is entered.
    * If disabled, characters will be available as typed.
diff --git a/sdk/lib/io/timer_impl.dart b/sdk/lib/io/timer_impl.dart
index f03b618..883d09e 100644
--- a/sdk/lib/io/timer_impl.dart
+++ b/sdk/lib/io/timer_impl.dart
@@ -24,8 +24,12 @@
     _Timer timer = new _Timer._internal();
     timer._callback = callback;
     if (milliSeconds > 0) {
+      // Add one because DateTime.now() is assumed to round down
+      // to nearest millisecond, not up, so that time + duration is before
+      // duration milliseconds from now. Using micosecond timers like
+      // Stopwatch allows detecting that the timer fires early.
       timer._wakeupTime =
-          new DateTime.now().millisecondsSinceEpoch + milliSeconds;
+          new DateTime.now().millisecondsSinceEpoch + 1 + milliSeconds;
     }
     timer._milliSeconds = repeating ? milliSeconds : -1;
     timer._addTimerToList();
@@ -79,6 +83,12 @@
   // enqueued in order and notified in FIFO order.
   void _addTimerToList() {
     _Timer entry = _timers.isEmpty ? null : _timers.first;
+    // If timer is last, add to end.
+    if (entry == null || _timers.last._wakeupTime <= _wakeupTime) {
+      _timers.add(this);
+      return;
+    }
+    // Otherwise scan through and find the right position.
     while (entry != null) {
       if (_wakeupTime < entry._wakeupTime) {
         entry.insertBefore(this);
diff --git a/sdk/lib/mirrors/mirrors.dart b/sdk/lib/mirrors/mirrors.dart
index 28d7174..f96525a 100644
--- a/sdk/lib/mirrors/mirrors.dart
+++ b/sdk/lib/mirrors/mirrors.dart
@@ -920,6 +920,15 @@
   bool get isAbstract;
 
   /**
+   * Returns true if the reflectee is synthetic, and returns false otherwise.
+   *
+   * A reflectee is synthetic if it is a getter or setter implicitly introduced
+   * for a field or Type, or if it is a constructor that was implicitly
+   * introduced as a default constructor or as part of a mixin application.
+   */
+  bool get isSynthetic;
+
+  /**
    * Is the reflectee a regular function or method?
    *
    * A function or method is regular if it is not a getter, setter, or
diff --git a/tests/co19/co19-analyzer.status b/tests/co19/co19-analyzer.status
index 8196b61..28c3b88 100644
--- a/tests/co19/co19-analyzer.status
+++ b/tests/co19/co19-analyzer.status
@@ -72,7 +72,7 @@
 LibTest/isolate/SendPort/call_A01_t01: Fail
 LibTest/isolate/SendPort/hashCode_A01_t01: Fail
 LibTest/isolate/SendPort/operator_equality_A01_t01: Fail
-LibTest/isolate/SendPort/send_A01_t01: Pass
+LibTest/isolate/SendPort/send_A01_t01: StaticWarning
 LibTest/isolate/SendPort/send_A02_t01: Fail
 LibTest/isolate/SendPort/send_A02_t04: Fail
 LibTest/isolate/SendPort/send_A02_t05: Fail
@@ -83,7 +83,6 @@
 LibTest/isolate/IsolateStream/contains_A02_t01: Fail
 LibTest/isolate/ReceivePort/receive_A01_t02: Fail
 LibTest/isolate/ReceivePort/toSendPort_A01_t02: Fail
-LibTest/isolate/SendPort/send_A01_t01: Fail
 LibTest/isolate/SendPort/send_A02_t02: Fail
 LibTest/isolate/SendPort/send_A02_t03: Fail
 
@@ -130,13 +129,9 @@
 
 Language/07_Classes/10_Superinterfaces_A07_t05: StaticWarning # co19-roll r667: Please triage this failure
 LibTest/convert/JsonEncoder/JsonEncoder_A01_t01: StaticWarning # co19-roll r667: Please triage this failure
-LibTest/isolate/Isolate/spawnFunction_A02_t02: CompileTimeError # co19-roll r667: Please triage this failure
 LibTest/async/Zone/operator_subscript_A01_t01: StaticWarning # co19-roll r672: Please triage this failure
 
 # co19 issue 656
-LibTest/typed_data/Uint32x4/*: Skip # co19 issue 656
-LibTest/typed_data/Float32x4/Float32x4.fromUint32x4Bits_A01_t01: Skip # co19 issue 656
-LibTest/typed_data/Float32x4/Float32x4.fromUint32x4Bits_A01_t02: Skip # co19 issue 656
 LibTest/typed_data/Float32x4/equal_A01_t01: Skip # co19 issue 656
 LibTest/typed_data/Float32x4/notEqual_A01_t01: Skip # co19 issue 656
 LibTest/typed_data/Float32x4/greaterThan_A01_t01: Skip # co19 issue 656
diff --git a/tests/co19/co19-analyzer2.status b/tests/co19/co19-analyzer2.status
index 184d3aa..5c77349 100644
--- a/tests/co19/co19-analyzer2.status
+++ b/tests/co19/co19-analyzer2.status
@@ -130,13 +130,9 @@
 
 Language/07_Classes/10_Superinterfaces_A07_t05: StaticWarning # co19-roll r667: Please triage this failure
 LibTest/convert/JsonEncoder/JsonEncoder_A01_t01: StaticWarning # co19-roll r667: Please triage this failure
-LibTest/isolate/Isolate/spawnFunction_A02_t02: CompileTimeError # co19-roll r667: Please triage this failure
 LibTest/async/Zone/operator_subscript_A01_t01: StaticWarning # co19-roll r672: Please triage this failure
 
 # co19 issue 656
-LibTest/typed_data/Uint32x4/*: Skip # co19 issue 656
-LibTest/typed_data/Float32x4/Float32x4.fromUint32x4Bits_A01_t01: Skip # co19 issue 656
-LibTest/typed_data/Float32x4/Float32x4.fromUint32x4Bits_A01_t02: Skip # co19 issue 656
 LibTest/typed_data/Float32x4/equal_A01_t01: Skip # co19 issue 656
 LibTest/typed_data/Float32x4/notEqual_A01_t01: Skip # co19 issue 656
 LibTest/typed_data/Float32x4/greaterThan_A01_t01: Skip # co19 issue 656
diff --git a/tests/co19/co19-co19.status b/tests/co19/co19-co19.status
index dfadfa8..bd7e326 100644
--- a/tests/co19/co19-co19.status
+++ b/tests/co19/co19-co19.status
@@ -15,18 +15,9 @@
 LibTest/core/Stopwatch/start_A01_t02: PASS, FAIL, OK # co19 issue 657
 LibTest/core/Stopwatch/elapsedTicks_A01_t01: PASS, FAIL, OK # co19 issue 657
 
-LibTest/isolate/Isolate/spawnFunction_A02_t01: Fail, OK # co19 issue 639
-LibTest/isolate/Isolate/spawnFunction_A03_t01: Fail, OK # co19 issue 639
-LibTest/isolate/Isolate/spawnFunction_A04_t01: Fail, OK # co19 issue 639
-LibTest/isolate/Isolate/spawnFunction_A04_t02: Fail, OK # co19 issue 639
-LibTest/isolate/Isolate/spawnFunction_A04_t03: Fail, OK # co19 issue 639
-
 [ $runtime == vm || $runtime == dartium || $compiler == dart2dart || $compiler == dart2js ]
 Language/12_Expressions/30_Identifier_Reference_A02_t01: fail, pass, ok # co19 issue 649
 
-Language/05_Variables/05_Variables_A06_t01: fail, pass, ok # co19 issue 624
-Language/05_Variables/05_Variables_A06_t02: fail, pass, ok # co19 issue 624
-Language/05_Variables/05_Variables_A06_t03: fail, pass, ok # co19 issue 624
 Language/07_Classes/6_Constructors/1_Generative_Constructors_A12_t02: fail # co19-roll r587: Please triage this failure
 Language/07_Classes/6_Constructors/1_Generative_Constructors_A20_t02: fail # co19-roll r587: Please triage this failure
 
@@ -49,7 +40,7 @@
 LibTest/collection/ListBase/ListBase_class_A01_t01: Skip, OK # co19 issue 661
 LibTest/collection/ListMixin/ListMixin_class_A01_t01: Skip, OK # co19 issue 661
 
-LibTest/isolate/Isolate/spawnUri_A02_t04: Timeout, Fail # co19-roll r672: Please triage this failure
+LibTest/isolate/Isolate/spawnUri_A02_t04: Fail # co19-roll r672: Please triage this failure
 
 [ $runtime == vm || $runtime == dartium || $compiler == dart2js ]
 LibTest/math/acos_A01_t01: PASS, FAIL, OK # co19 issue 44
@@ -66,7 +57,9 @@
 LibTest/core/double/round_A01_t02: FAIL, OK # co19 issue 389
 LibTest/core/double/round_A01_t04: FAIL, OK # co19 issue 389
 
-LibTest/async/Stream/Stream.periodic_A01_t01: TIMEOUT, PASS, FAIL, OK # co19 issue 538
+LibTest/async/Future/Future.delayed_A01_t02: Pass, Fail # Issue 15524
+
+LibTest/async/Stream/Stream.periodic_A01_t01: PASS, FAIL, OK # co19 issue 538
 
 LibTest/isolate/SendPort/send_A02_t02: SKIP # co19 issue 493
 LibTest/isolate/SendPort/send_A02_t03: SKIP # co19 issue 495
@@ -85,9 +78,8 @@
 LibTest/async/Timer/Timer_A02_t01: PASS, FAIL, OK # co19 issue 538
 LibTest/async/Timer/Timer.periodic_A01_t01: PASS, FAIL, OK # co19 issue 537
 LibTest/async/Timer/Timer.periodic_A02_t01: PASS, FAIL, OK # co19 issue 538
-LibTest/async/Future/Future.delayed_A01_t02: PASS, FAIL, OK # co19 issue 536
 
-LibTest/isolate/IsolateStream/contains_A02_t01: PASS, FAIL, OK # co19 issue 540
+LibTest/isolate/IsolateStream/contains_A02_t01: FAIL, OK # co19 issue 540
 
 
 [ $runtime == vm || $compiler == none || $compiler == dart2js ]
@@ -131,7 +123,3 @@
 Language/13_Statements/09_Switch_A09_t01: PASS, FAIL, OK # co19 issue 633
 LibTest/collection/DoubleLinkedQueue/removeFirst_A01_t01: RuntimeError # co19-roll r607: Please triage this failure
 LibTest/collection/LinkedList/LinkedList_A01_t01: RuntimeError # co19-roll r623: Please triage this failure
-
-[ ($runtime == vm || $compiler == dart2js) && $checked]
-Language/14_Libraries_and_Scripts/1_Imports_A03_t46: PASS, FAIL, OK # co19 issue 560
-Language/14_Libraries_and_Scripts/1_Imports_A03_t66: PASS, FAIL, OK # co19 issue 560
diff --git a/tests/co19/co19-dart2dart.status b/tests/co19/co19-dart2dart.status
index 74fd8a5..c3e7ab4 100644
--- a/tests/co19/co19-dart2dart.status
+++ b/tests/co19/co19-dart2dart.status
@@ -68,9 +68,6 @@
 LibTest/math/exp_A01_t01: Fail # Issue co19 - 44
 LibTest/math/sin_A01_t01: Fail # Inherited from VM.
 LibTest/math/tan_A01_t01: Fail # Issue co19 - 44
-LibTest/typed_data/Uint32x4/*: Skip # co19 issue 656
-LibTest/typed_data/Float32x4/Float32x4.fromUint32x4Bits_A01_t01: Skip # co19 issue 656
-LibTest/typed_data/Float32x4/Float32x4.fromUint32x4Bits_A01_t02: Skip # co19 issue 656
 LibTest/typed_data/Float32x4/equal_A01_t01: Skip # co19 issue 656
 LibTest/typed_data/Float32x4/notEqual_A01_t01: Skip # co19 issue 656
 LibTest/typed_data/Float32x4/greaterThan_A01_t01: Skip # co19 issue 656
diff --git a/tests/co19/co19-dart2js.status b/tests/co19/co19-dart2js.status
index 6a983cd..ec96ae9 100644
--- a/tests/co19/co19-dart2js.status
+++ b/tests/co19/co19-dart2js.status
@@ -7,9 +7,9 @@
 LibTest/core/RegExp/Pattern_semantics/splitQueryString_A02_t01: RuntimeError # co19-roll r607: Please triage this failure
 
 [ $compiler == dart2js && $checked && $runtime == ie9 ]
-LibTest/core/Uri/encodeComponent_A01_t02: Pass, Slow
-LibTest/core/Uri/encodeFull_A01_t02: Pass, Slow
-LibTest/core/Uri/encodeQueryComponent_A01_t02: Pass, Timeout # co19-roll r576: Please triage this failure
+LibTest/core/Uri/encodeComponent_A01_t02: Skip
+LibTest/core/Uri/encodeFull_A01_t02: Skip
+LibTest/core/Uri/encodeQueryComponent_A01_t02: Skip
 
 
 # Crashes first, please. Then untriaged bugs. There is a section below
@@ -55,9 +55,6 @@
 LibTest/typed_data/Uint32List/Uint32List_A02_t01: fail # co19-roll r576: Please triage this failure
 LibTest/typed_data/Uint8ClampedList/Uint8ClampedList_A02_t01: fail # co19-roll r576: Please triage this failure
 LibTest/typed_data/Uint8List/Uint8List_A02_t01: fail # co19-roll r576: Please triage this failure
-LibTest/typed_data/Uint32x4/*: Skip # co19 issue 656
-LibTest/typed_data/Float32x4/Float32x4.fromUint32x4Bits_A01_t01: Skip # co19 issue 656
-LibTest/typed_data/Float32x4/Float32x4.fromUint32x4Bits_A01_t02: Skip # co19 issue 656
 LibTest/typed_data/Float32x4/equal_A01_t01: Skip # co19 issue 656
 LibTest/typed_data/Float32x4/notEqual_A01_t01: Skip # co19 issue 656
 LibTest/typed_data/Float32x4/greaterThan_A01_t01: Skip # co19 issue 656
@@ -69,8 +66,8 @@
 LibTest/typed_data/ByteData/ByteData_A02_t01: fail # co19-roll r576: Please triage this failure
 
 [ $compiler == dart2js && $runtime == jsshell ]
-LibTest/isolate/SendPort/send_A02_t05: Fail, Pass # TODO(ahe): Please triage this failure.
-LibTest/isolate/SendPort/send_A02_t06: Fail, Pass # TODO(ahe): Please triage this failure.
+LibTest/isolate/SendPort/send_A02_t05: RuntimeError # TODO(ahe): Please triage this failure.
+LibTest/isolate/SendPort/send_A02_t06: RuntimeError # TODO(ahe): Please triage this failure.
 LibTest/core/Uri/Uri_A06_t03: Pass, Slow
 
 [ $compiler == dart2js ]
@@ -80,8 +77,6 @@
 LibTest/isolate/ReceivePort/receive_A01_t02: RuntimeError # Issue 6750
 
 [ $compiler == dart2js && $runtime == ie9 ]
-LibTest/async/Completer/completeError_A02_t01: Pass, Fail # Issue 8920
-LibTest/async/Stream/listen_A04_t01: Pass, Timeout # Issue: 8920
 LibTest/core/double/round_A01_t01: Fail # Issue: 8920
 LibTest/core/double/toStringAsExponential_A01_t04: Fail # Issue: 8920
 LibTest/core/double/toStringAsPrecision_A01_t04: Fail # Issue: 8920
@@ -98,15 +93,13 @@
 LibTest/core/RegExp/Pattern_semantics/firstMatch_NonEmptyClassRanges_A01_t01: Fail # Issue: 8920
 LibTest/core/RegExp/Pattern_semantics/firstMatch_NonEmptyClassRanges_A01_t05: Fail # Issue: 8920
 LibTest/core/RegExp/Pattern_semantics/firstMatch_NonEmptyClassRanges_A01_t06: Fail # Issue: 8920
-LibTest/isolate/ReceivePort/toSendPort_A01_t01: Pass, Fail # Issue: 8920
-LibTest/isolate/ReceivePort/toSendPort_A01_t02: Pass, Fail # Issue: 8920
+LibTest/isolate/ReceivePort/toSendPort_A01_t01: RuntimeError # Issue: 8920
 LibTest/async/DeferredLibrary/DeferredLibrary_A01_t01: Skip # http://dartbug.com/12635
 LibTest/collection/DoubleLinkedQueue/DoubleLinkedQueue_class_A01_t01: Pass, Timeout # co19-roll r651: Please triage this failure
 
 [ $compiler == dart2js && $runtime == jsshell ]
 LibTest/core/Map/Map_class_A01_t04: Pass, Slow # Issue 8096
 LibTest/core/double/round_A01_t01: Fail # TODO(ngeoaffray): Please triage these failure.
-LibTest/core/int/operator_truncating_division_A01_t01: Fail # TODO(ngeoaffray): Please triage these failure.
 LibTest/core/RegExp/Pattern_semantics/firstMatch_CharacterClassEscape_A03_t01: Fail # TODO(ngeoaffray): Please triage these failure.
 
 [ $compiler == dart2js && $checked ]
@@ -115,6 +108,8 @@
 Language/15_Types/2_Dynamic_Type_System_A01_t02: RuntimeError # co19-roll r607: Please triage this failure
 Language/15_Types/8_Parameterized_Types_A03_t07: RuntimeError # co19-roll r607: Please triage this failure
 Language/15_Types/1_Static_Types_A03_t01: RuntimeError # co19-roll r623: Please triage this failure
+LibTest/core/Map/Map_class_A01_t04: Slow, Pass
+LibTest/core/Uri/Uri_A06_t03: Slow, Pass
 
 [ $compiler == dart2js ]
 LibTest/core/int/operator_GT_A01_t01: RuntimeError, OK # co19 issue 200
@@ -128,7 +123,7 @@
 
 Language/07_Classes/6_Constructors/1_Generative_Constructors_A13_t01: RuntimeError, OK # These tests need to be updated for new optional parameter syntax and semantics, co19 issue 258:
 
-LibTest/isolate/SendPort/send_A02_t04: RuntimeError, Pass, OK # co19 issue 293 Passes on IE
+LibTest/isolate/SendPort/send_A02_t04: RuntimeError, OK # co19 issue 293 Passes on IE
 
 LibTest/core/RegExp/firstMatch_A01_t01: RuntimeError, OK # co19 issue 294
 LibTest/core/RegExp/Pattern_semantics/firstMatch_Term_A04_t01: RuntimeError, OK # co19 issue 294
@@ -239,7 +234,6 @@
 LibTest/core/int/isOdd_A01_t01: RuntimeError, OK # Not in API.
 LibTest/core/int/operator_left_shift_A01_t01: RuntimeError, OK # Requires big int.
 LibTest/core/int/operator_remainder_A01_t03: RuntimeError, OK # Leg only has double.
-LibTest/core/int/operator_truncating_division_A01_t01: Fail, Pass # Requires big int unless type inference fools us.
 LibTest/core/int/operator_truncating_division_A01_t02: RuntimeError, OK # Leg only has double.
 LibTest/core/int/remainder_A01_t01: RuntimeError, OK # Requires big int.
 LibTest/core/int/remainder_A01_t03: RuntimeError, OK # Leg only has double.
@@ -250,12 +244,9 @@
 Language/12_Expressions/00_Object_Identity/1_Object_Identity_A05_t02: RuntimeError # co19-roll r607: Please triage this failure
 Language/12_Expressions/17_Getter_Invocation_A07_t02: RuntimeError # co19-roll r607: Please triage this failure
 LibTest/collection/LinkedList/add_A01_t01: Pass, Timeout  # co19-roll r607: Please triage this failure
-LibTest/core/Uri/Uri_A06_t03: Pass, Timeout # Issue 13511
+LibTest/core/Uri/Uri_A06_t03: Timeout # Issue 13511
 LibTest/math/cos_A01_t01: Fail # co19 issue 44
 
-[ $compiler == dart2js && $runtime == ie9 && $checked ]
-LibTest/async/Future/catchError_A03_t05: Pass, RuntimeError # Issue 14712
-
 #
 # The following tests are failing. Please add the error message
 # (either a compiler error or exception message). The error messages
@@ -272,27 +263,46 @@
 
 
 [ $compiler == dart2js && $runtime == chromeOnAndroid ]
-Language/12_Expressions/05_Strings_A06_t01: Pass, Slow # TODO(kasperl): Please triage.
-LibTest/core/Set/removeAll_A01_t02: Pass, Slow # TODO(kasperl): Please triage.
-LibTest/typed_data/Float64List/join_A01_t01: Pass, Slow # TODO(kasperl): Please triage.
-LibTest/typed_data/Int8List/sublist_A02_t01: Pass, Slow # TODO(kasperl): Please triage.
-LibTest/typed_data/Int16List/single_A01_t02: Pass, Slow # TODO(kasperl): Please triage.
-LibTest/typed_data/Uint8ClampedList/map_A02_t01: Pass, Slow # TODO(kasperl): Please triage.
+Language/12_Expressions/00_Object_Identity/1_Object_Identity_A05_t02: RuntimeError # TODO(dart2js-team): Please triage this failure.
+Language/12_Expressions/05_Strings_A06_t01: Pass, Slow # TODO(dart2js-team): Please triage this failure.
+Language/12_Expressions/05_Strings_A06_t01: Pass, Slow # TODO(dart2js-team): Please triage this failure.
+Language/12_Expressions/17_Getter_Invocation_A07_t02: RuntimeError # TODO(dart2js-team): Please triage this failure.
 
-LibTest/core/int/compareTo_A01_t01: Fail # TODO(kasperl): Please triage.
-LibTest/core/int/operator_left_shift_A01_t01: Fail # TODO(kasperl): Please triage.
-LibTest/core/int/operator_remainder_A01_t03: Fail # TODO(kasperl): Please triage.
-LibTest/core/int/operator_truncating_division_A01_t02: Fail # TODO(kasperl): Please triage.
-LibTest/core/int/remainder_A01_t01: Fail # TODO(kasperl): Please triage.
-LibTest/core/int/remainder_A01_t03: Fail # TODO(kasperl): Please triage.
-LibTest/core/int/toRadixString_A01_t01: Fail # TODO(kasperl): Please triage.
-LibTest/core/RegExp/Pattern_semantics/firstMatch_CharacterEscape_A06_t02: Fail # TODO(kasperl): Please triage.
-LibTest/core/RegExp/Pattern_semantics/firstMatch_DecimalEscape_A01_t02: Fail # TODO(kasperl): Please triage.
-LibTest/core/RegExp/Pattern_semantics/firstMatch_NonEmptyClassRanges_A01_t01: Fail # TODO(kasperl): Please triage.
-LibTest/core/RegExp/Pattern_semantics/firstMatch_NonEmptyClassRanges_A01_t05: Fail # TODO(kasperl): Please triage.
-LibTest/core/RegExp/Pattern_semantics/firstMatch_NonEmptyClassRanges_A01_t06: Fail # TODO(kasperl): Please triage.
-LibTest/isolate/ReceivePort/toSendPort_A01_t02: Fail # TODO(kasperl): Please triage.
-LibTest/math/log_A01_t01: Fail # TODO(kasperl): Please triage.
+LibTest/typed_data/Float64List/join_A01_t01: Pass, Slow # TODO(dart2js-team): Please triage this failure.
+LibTest/typed_data/Int8List/sublist_A02_t01: Pass, Slow # TODO(dart2js-team): Please triage this failure.
+LibTest/typed_data/Int16List/single_A01_t02: Pass, Slow # TODO(dart2js-team): Please triage this failure.
+LibTest/typed_data/Uint8ClampedList/map_A02_t01: Pass, Slow # TODO(dart2js-team): Please triage this failure.
+LibTest/typed_data/Int32x4/operator_OR_A01_t01: RuntimeError # TODO(dart2js-team): Please triage this failure.
+LibTest/typed_data/Float32x4List/Float32x4List.view_A01_t02: RuntimeError # TODO(dart2js-team): Please triage this failure.
+LibTest/typed_data/Float32x4List/Float32x4List.view_A06_t01: RuntimeError # TODO(dart2js-team): Please triage this failure.
+
+
+LibTest/isolate/Isolate/spawnUri_A02_t01: RuntimeError # TODO(dart2js-team): Please triage this failure.
+LibTest/isolate/Isolate/spawn_A01_t04: RuntimeError # TODO(dart2js-team): Please triage this failure.
+
+# These tests are marked failing on all platforms, but they timeout here instead
+LibTest/isolate/Isolate/spawnUri_A01_t01: Skip # TODO(dart2js-team): Please triage this failure.
+LibTest/isolate/Isolate/spawnUri_A01_t02: Skip # TODO(dart2js-team): Please triage this failure.
+LibTest/isolate/Isolate/spawnUri_A01_t03: Skip # TODO(dart2js-team): Please triage this failure.
+LibTest/isolate/Isolate/spawnUri_A02_t02: Skip # TODO(dart2js-team): Please triage this failure.
+LibTest/isolate/Isolate/spawnUri_A02_t03: Skip # TODO(dart2js-team): Please triage this failure.
+LibTest/isolate/Isolate/spawnUri_A02_t04: Skip # TODO(dart2js-team): Please triage this failure.
+
+LibTest/core/Set/removeAll_A01_t02: Pass, Slow # TODO(dart2js-team): Please triage this failure.
+LibTest/core/int/compareTo_A01_t01: Fail # TODO(dart2js-team): Please triage this failure.
+LibTest/core/int/operator_left_shift_A01_t01: Fail # TODO(dart2js-team): Please triage this failure.
+LibTest/core/int/operator_remainder_A01_t03: Fail # TODO(dart2js-team): Please triage this failure.
+LibTest/core/int/operator_truncating_division_A01_t02: Fail # TODO(dart2js-team): Please triage this failure.
+LibTest/core/int/remainder_A01_t01: Fail # TODO(dart2js-team): Please triage this failure.
+LibTest/core/int/remainder_A01_t03: Fail # TODO(dart2js-team): Please triage this failure.
+LibTest/core/int/toRadixString_A01_t01: Fail # TODO(dart2js-team): Please triage this failure.
+
+LibTest/core/RegExp/Pattern_semantics/firstMatch_CharacterEscape_A06_t02: Fail # TODO(dart2js-team): Please triage this failure.
+LibTest/core/RegExp/Pattern_semantics/firstMatch_DecimalEscape_A01_t02: Fail # TODO(dart2js-team): Please triage this failure.
+LibTest/core/RegExp/Pattern_semantics/firstMatch_NonEmptyClassRanges_A01_t01: Fail # TODO(dart2js-team): Please triage this failure.
+LibTest/core/RegExp/Pattern_semantics/firstMatch_NonEmptyClassRanges_A01_t05: Fail # TODO(dart2js-team): Please triage this failure.
+LibTest/core/RegExp/Pattern_semantics/firstMatch_NonEmptyClassRanges_A01_t06: Fail # TODO(dart2js-team): Please triage this failure.
+LibTest/math/log_A01_t01: Fail # TODO(dart2js-team): Please triage this failure.
 
 
 [ $compiler == dart2js && ($runtime == ie10 || $runtime == ff || $runtime == chrome || $runtime == drt || $runtime == safari || $runtime == opera) ]
@@ -335,7 +345,6 @@
 LibTest/typed_data/Uint8List/*: fail, crash # co19-roll r559: Please triage this failure
 LibTest/typed_data/Uint16List/*: fail, crash # co19-roll r559: Please triage this failure
 LibTest/typed_data/Uint32List/*: fail, crash # co19-roll r559: Please triage this failure
-LibTest/typed_data/Uint32x4/*: fail, crash # co19-roll r559: Please triage this failure
 LibTest/typed_data/Uint64List/*: fail, crash # co19-roll r559: Please triage this failure
 LibTest/typed_data/Float32List/Float32List_A02_t01: pass # co19-roll r559: Please triage this failure
 LibTest/typed_data/Float32x4List/Float32x4List_A02_t01: pass # co19-roll r559: Please triage this failure
@@ -536,7 +545,7 @@
 LibTest/typed_data/Float64List/toList_A01_t01: fail, timeout # co19-roll r559: Please triage this failure
 LibTest/typed_data/Int16List/hashCode_A01_t01: fail # co19-roll r559: Please triage this failure
 LibTest/typed_data/Int16List/Int16List.view_A06_t01: fail # co19-roll r587: Please triage this failure
-LibTest/typed_data/Int16List/toList_A01_t01: pass, fail # co19-roll r559: Please triage this failure
+LibTest/typed_data/Int16List/toList_A01_t01: fail # co19-roll r559: Please triage this failure
 LibTest/typed_data/Int16List/toList_A01_t01: timeout # co19-roll r559: Please triage this failure
 LibTest/typed_data/Int32List/hashCode_A01_t01: fail # co19-roll r559: Please triage this failure
 LibTest/typed_data/Int32List/Int32List.view_A06_t01: fail # co19-roll r587: Please triage this failure
diff --git a/tests/co19/co19-dartium.status b/tests/co19/co19-dartium.status
index c60ac8c..1dabd9c 100644
--- a/tests/co19/co19-dartium.status
+++ b/tests/co19/co19-dartium.status
@@ -22,6 +22,7 @@
 LibTest/isolate/Isolate/spawnUri_A01_t04: RuntimeError # co19-roll r672: Please triage this failure
 LibTest/isolate/Isolate/spawnUri_A01_t05: RuntimeError # co19-roll r672: Please triage this failure
 LibTest/isolate/Isolate/spawnUri_A02_t01: RuntimeError # co19-roll r672: Please triage this failure
+LibTest/isolate/Isolate/spawnUri_A02_t04: Pass, Timeout # Please triage this failure
 LibTest/isolate/RawReceivePort/RawReceivePort_A01_t01: RuntimeError # co19-roll r672: Please triage this failure
 LibTest/isolate/RawReceivePort/RawReceivePort_A01_t02: RuntimeError # co19-roll r672: Please triage this failure
 LibTest/isolate/RawReceivePort/close_A01_t01: RuntimeError # co19-roll r672: Please triage this failure
diff --git a/tests/co19/co19-runtime.status b/tests/co19/co19-runtime.status
index 1e73cf2..16f1123 100644
--- a/tests/co19/co19-runtime.status
+++ b/tests/co19/co19-runtime.status
@@ -18,8 +18,6 @@
 LibTest/core/RegExp/firstMatch_A01_t01: Fail # Issue 12508
 LibTest/core/int/toRadixString_A01_t01: Fail # co19 issue 492
 
-LibTest/async/Timer/Timer.periodic_A02_t01: Pass, Fail # co19 issue 537
-
 Language/05_Variables/05_Variables_A05_t01: fail # Dart issue 12539
 Language/05_Variables/05_Variables_A05_t02: fail # Dart issue 12539
 Language/13_Statements/06_For_A01_t11: fail # Dart issue 5675
@@ -32,9 +30,8 @@
 
 # All isolate are being ignored at the moment as the library will go through some changes.
 LibTest/isolate/IsolateStream/any_A02_t01: fail # co19-roll r546: Please triage this failure
-LibTest/isolate/IsolateStream/contains_A02_t01: fail, pass # co19-roll r546: Please triage this failure
+LibTest/isolate/IsolateStream/contains_A02_t01: fail # co19-roll r546: Please triage this failure
 LibTest/isolate/ReceivePort/receive_A01_t02: Fail # VM triage, check spec.
-LibTest/isolate/SendPort/send_A01_t01: fail # co19-roll r546: Please triage this failure
 
 LibTest/isolate/Isolate/spawnUri_A02_t02: Timeout # co19-roll r672: Please triage this failure
 LibTest/isolate/Isolate/spawnUri_A02_t03: Timeout # co19-roll r672: Please triage this failure
@@ -43,10 +40,6 @@
 LibTest/core/RegExp/Pattern_semantics/splitQueryString_A02_t01: RuntimeError # co19-roll r607: Please triage this failure
 LibTest/core/Symbol/Symbol_A01_t03: RuntimeError # co19-roll r607: Please triage this failure
 LibTest/core/Symbol/Symbol_A01_t05: RuntimeError # co19-roll r607: Please triage this failure
-LibTest/typed_data/Float32x4/clamp_A01_t01: Pass, Fail # co19 issue 636
-LibTest/typed_data/Uint32x4/*: Skip # co19 issue 656
-LibTest/typed_data/Float32x4/Float32x4.fromUint32x4Bits_A01_t01: Skip # co19 issue 656
-LibTest/typed_data/Float32x4/Float32x4.fromUint32x4Bits_A01_t02: Skip # co19 issue 656
 LibTest/typed_data/Float32x4/equal_A01_t01: Skip # co19 issue 656
 LibTest/typed_data/Float32x4/notEqual_A01_t01: Skip # co19 issue 656
 LibTest/typed_data/Float32x4/greaterThan_A01_t01: Skip # co19 issue 656
@@ -59,7 +52,6 @@
 LibTest/typed_data/Float32x4/reciprocal_A01_t01: Pass, Fail # Issue 13398
 
 [ $compiler == none && $runtime == vm && $checked ]
-LibTest/async/Future/catchError_A01_t01: Fail # Future constructors have changed # issue 408
 LibTest/core/List/removeAt_A02_t01: Fail # co19-roll r641: Please triage this failure
 
 # Passing for the wrong reasons:
@@ -71,7 +63,6 @@
 #end [ $compiler == none && $runtime == vm && $checked ]
 
 [ $compiler == none && $runtime == vm && $mode == debug ]
-LibTest/async/Stream/Stream.periodic_A03_t01: Fail # co19-roll r546: Please triage this failure
 LibTest/isolate/IsolateStream/contains_A02_t01: Fail # co19-roll r546: Please triage this failure
 Language/15_Types/4_Interface_Types_A11_t01: Pass, Slow
 LibTest/core/List/List_class_A01_t01: Pass, Slow
@@ -89,9 +80,5 @@
 [ $compiler == none && $checked && ($runtime == vm || $runtime == dartium) ]
 Language/15_Types/1_Static_Types_A03_t01: RuntimeError # co19-roll r667: Please triage this failure
 
-[ $compiler == none && $runtime == vm && $system == windows && $mode == debug ]
-Language/15_Types/4_Interface_Types_A11_t01: pass, timeout # Issue 13349
-Language/15_Types/4_Interface_Types_A11_t02: pass, timeout # Issue 13349
-
 [ $runtime == vm ]
 LibTest/isolate/Isolate/spawn_A02_t01: Timeout # co19-roll r672: Please triage this failure
diff --git a/tests/compiler/dart2js/analyze_api_test.dart b/tests/compiler/dart2js/analyze_api_test.dart
index 8965a92..de48a2e 100644
--- a/tests/compiler/dart2js/analyze_api_test.dart
+++ b/tests/compiler/dart2js/analyze_api_test.dart
@@ -20,29 +20,6 @@
 // TODO(johnniwinther): Support canonical URIs as keys and message kinds as
 // values.
 const Map<String, List<String>> WHITE_LIST = const {
-  // The following notices go away when bugs 15417 is fixed.
-  "sdk/lib/core/map.dart": const [
-      "Info: This is the method declaration."],
-
-  // Bug 15417.
-  "sdk/lib/html/dart2js/html_dart2js.dart": const ["""
-Warning: '_DataAttributeMap' doesn't implement 'addAll'.
-Try adding an implementation of 'addAll'.""", """
-Warning: '_NamespacedAttributeMap' doesn't implement 'addAll'.
-Try adding an implementation of 'addAll'.""", """
-Warning: '_ElementAttributeMap' doesn't implement 'addAll'.
-Try adding an implementation of 'addAll'.""", """
-Warning: 'Window' doesn't implement 'clearInterval'.
-Try adding an implementation of 'clearInterval'.""", """
-Warning: 'Window' doesn't implement 'clearTimeout'.
-Try adding an implementation of 'clearTimeout'.""", """
-Warning: 'Window' doesn't implement 'setInterval'.
-Try adding an implementation of 'setInterval'.""", """
-Warning: 'Window' doesn't implement 'setTimeout'.
-Try adding an implementation of 'setTimeout'.""", """
-Warning: 'Storage' doesn't implement 'addAll'.
-Try adding an implementation of 'addAll'.""",
-"Info: This is the method declaration."],
 };
 
 void main() {
diff --git a/tests/compiler/dart2js/cpa_inference_test.dart b/tests/compiler/dart2js/cpa_inference_test.dart
index 2160670..e522a35 100644
--- a/tests/compiler/dart2js/cpa_inference_test.dart
+++ b/tests/compiler/dart2js/cpa_inference_test.dart
@@ -174,7 +174,8 @@
   class Type {}
   class StackTrace {}
   class Dynamic_ {}
-  bool identical(Object a, Object b) {}''';
+  bool identical(Object a, Object b) {}
+  const proxy = 0;''';
 
 Future<AnalysisResult> analyze(String code, {int maxConcreteTypeSize: 1000}) {
   Uri uri = new Uri(scheme: 'source');
diff --git a/tests/compiler/dart2js/dart2js.status b/tests/compiler/dart2js/dart2js.status
index 1b73d2e..2751baf 100644
--- a/tests/compiler/dart2js/dart2js.status
+++ b/tests/compiler/dart2js/dart2js.status
@@ -9,5 +9,11 @@
 analyze_api_test: Pass, Slow
 analyze_dart2js_test: Pass, Slow
 
+# simple_function_subtype_test is temporarily(?) disabled due to new method for
+# building function type tests.
+simple_function_subtype_test: Fail
+
+mirror_final_field_inferrer2_test: Crash, Pass # dartbug.com/15581
+
 [ $jscl || $runtime == drt || $runtime == dartium || $runtime == ff || $runtime == firefox || $runtime == chrome || $runtime == safari || $runtime == ie9 || $runtime == opera ]
 *: Skip # dart2js uses #import('dart:io'); and it is not self-hosted (yet).
diff --git a/tests/compiler/dart2js/dart_backend_test.dart b/tests/compiler/dart2js/dart_backend_test.dart
index c57dfb3..98595af 100644
--- a/tests/compiler/dart2js/dart_backend_test.dart
+++ b/tests/compiler/dart2js/dart_backend_test.dart
@@ -39,6 +39,7 @@
 }
 print(x) {}
 identical(a, b) => true;
+const proxy = 0;
 ''';
 
 const ioLib = r'''
diff --git a/tests/compiler/dart2js/dump_info_test.dart b/tests/compiler/dart2js/dump_info_test.dart
new file mode 100644
index 0000000..e34e828
--- /dev/null
+++ b/tests/compiler/dart2js/dump_info_test.dart
@@ -0,0 +1,50 @@
+// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+// Test that parameters keep their names in the output.
+
+import 'dart:async';
+import "package:expect/expect.dart";
+import "package:async_helper/async_helper.dart";
+import 'memory_compiler.dart';
+
+const String TEST_ONE = r"""
+library main;
+
+int a = 2;
+
+class c {
+  final int m;
+  c(this.m);
+}
+
+void f() {
+  () {} (); // TODO (sigurdm): Empty closure, hack to avoid inlining.
+  a = 2;
+}
+
+main() {
+  f();
+  new c(2);
+}
+""";
+
+main() {
+  var compiler = compilerFor({'main.dart': TEST_ONE});
+  asyncTest(() => compiler.runCompiler(Uri.parse('memory:main.dart')).then((_) {
+    var info = compiler.dumpInfoTask.collectDumpInfo();
+    var mainlib = info.libraries[0];
+    Expect.stringEquals("main", mainlib.name);
+    var contents = mainlib.contents;
+    Expect.stringEquals("main", mainlib.name);
+    Expect.stringEquals("a", contents[0].name);
+    Expect.stringEquals("c", contents[1].name);
+    Expect.stringEquals("f", contents[2].name);
+    Expect.stringEquals("main", contents[3].name);
+    Expect.stringEquals("library", mainlib.kind);
+    Expect.stringEquals("field", contents[0].kind);
+    Expect.stringEquals("class", contents[1].kind);
+    Expect.stringEquals("function", contents[2].kind);
+    Expect.stringEquals("function", contents[3].kind);
+  }));
+}
diff --git a/tests/compiler/dart2js/list_tracer_test.dart b/tests/compiler/dart2js/list_tracer_test.dart
index e599732..738c48c 100644
--- a/tests/compiler/dart2js/list_tracer_test.dart
+++ b/tests/compiler/dart2js/list_tracer_test.dart
@@ -87,6 +87,8 @@
 var listPassedAsNamedParameter = $listAllocation;
 var listSetInNonFinalField = $listAllocation;
 var listWithChangedLength = $listAllocation;
+var listStoredInList = $listAllocation;
+var listStoredInListButEscapes = $listAllocation;
 
 foo(list) {
   list[0] = aDouble;
@@ -175,6 +177,13 @@
 
   listWithChangedLength[0] = anInt;
   listWithChangedLength.length = 54;
+
+  a = [listStoredInList];
+  a[0][0] = 42;
+
+  a = [listStoredInListButEscapes];
+  a[0][0] = 42;
+  a.forEach((e) => print(e));
 }
 """;
 }
@@ -224,6 +233,8 @@
     checkType('listUsedWithNonOkSelector', typesTask.dynamicType);
     checkType('listPassedAsOptionalParameter', typesTask.numType);
     checkType('listPassedAsNamedParameter', typesTask.numType);
+    checkType('listStoredInList', typesTask.uint31Type);
+    checkType('listStoredInListButEscapes', typesTask.dynamicType);
 
     if (!allocation.contains('filled')) {
       checkType('listUnset', new TypeMask.nonNullEmpty());
diff --git a/tests/compiler/dart2js/mirrors_used_test.dart b/tests/compiler/dart2js/mirrors_used_test.dart
index 1eb5892..50ca509 100644
--- a/tests/compiler/dart2js/mirrors_used_test.dart
+++ b/tests/compiler/dart2js/mirrors_used_test.dart
@@ -58,7 +58,7 @@
     // 2. Some code was refactored, and there are more methods.
     // Either situation could be problematic, but in situation 2, it is often
     // acceptable to increase [expectedMethodCount] a little.
-    int expectedMethodCount = 346;
+    int expectedMethodCount = 351;
     Expect.isTrue(
         generatedCode.length <= expectedMethodCount,
         'Too many compiled methods: '
@@ -68,8 +68,11 @@
     List expectedNames = [
         'Foo', // The name of class Foo.
         r'Foo$', // The name of class Foo's constructor.
+        r'get$field']; // The (getter) name of Foo.field.
+    // TODO(ahe): Check for the following names, currently they are not being
+    // recorded correctly, but are being emitted.
+    [
         'Foo_staticMethod', // The name of Foo.staticMethod.
-        r'get$field', // The (getter) name of Foo.field.
         r'instanceMethod$0']; // The name of Foo.instanceMethod.
     Set recordedNames = new Set()
         ..addAll(compiler.backend.emitter.recordedMangledNames)
diff --git a/tests/compiler/dart2js/mock_compiler.dart b/tests/compiler/dart2js/mock_compiler.dart
index b24b0f2..1214f30 100644
--- a/tests/compiler/dart2js/mock_compiler.dart
+++ b/tests/compiler/dart2js/mock_compiler.dart
@@ -131,12 +131,15 @@
     operator-() => (this is JSInt) ? 42 : 42.2;
     operator +(other) => (this is JSInt) ? 42 : 42.2;
     operator -(other) => (this is JSInt) ? 42 : 42.2;
-    operator ~/(other) => 42;
+    operator ~/(other) => _tdivFast(other);
     operator /(other) => (this is JSInt) ? 42 : 42.2;
     operator *(other) => (this is JSInt) ? 42 : 42.2;
     operator %(other) => (this is JSInt) ? 42 : 42.2;
-    operator <<(other) => 42;
-    operator >>(other) => 42;
+    operator <<(other) => _shlPositive(other);
+    operator >>(other) {
+      return _shrBothPositive(other) + _shrReceiverPositive(other) +
+        _shrOtherPositive(other);
+    }
     operator |(other) => 42;
     operator &(other) => 42;
     operator ^(other) => 42;
@@ -148,6 +151,12 @@
     operator ==(other) => true;
     get hashCode => throw "JSNumber.hashCode not implemented.";
 
+    _tdivFast(other) => 42;
+    _shlPositive(other) => 42;
+    _shrBothPositive(other) => 42;
+    _shrReceiverPositive(other) => 42;
+    _shrOtherPositive(other) => 42;
+
     abs() => (this is JSInt) ? 42 : 42.2;
     remainder(other) => (this is JSInt) ? 42 : 42.2;
     truncate() => 42;
@@ -207,7 +216,8 @@
     DateTime.utc(year);
   }
   abstract class Pattern {}
-  bool identical(Object a, Object b) { return true; }''';
+  bool identical(Object a, Object b) { return true; }
+  const proxy = 0;''';
 
 const String DEFAULT_ISOLATE_HELPERLIB = r'''
   var startRootIsolate;
diff --git a/tests/compiler/dart2js/proxy_test.dart b/tests/compiler/dart2js/proxy_test.dart
new file mode 100644
index 0000000..c558350
--- /dev/null
+++ b/tests/compiler/dart2js/proxy_test.dart
@@ -0,0 +1,22 @@
+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file

+// for details. All rights reserved. Use of this source code is governed by a

+// BSD-style license that can be found in the LICENSE file.

+

+// Test that dart2js produces the expected static type warnings for proxy

+// language tests. This ensures that the analyzer and dart2js agrees on these

+// tests.

+

+import 'warnings_checker.dart';

+

+/// Map from test files to a map of their expected status. If the status map is

+/// `null` no warnings must be missing or unexpected, otherwise the status map

+/// can contain a list of line numbers for keys 'missing' and 'unexpected' for

+/// the warnings of each category.

+const Map<String, dynamic> TESTS = const {

+    'language/proxy_test.dart': null,

+    'language/proxy2_test.dart': null,

+};

+

+void main() {

+  checkWarnings(TESTS);

+}

diff --git a/tests/compiler/dart2js/resolver_test.dart b/tests/compiler/dart2js/resolver_test.dart
index 72277c8..fd1534a 100644
--- a/tests/compiler/dart2js/resolver_test.dart
+++ b/tests/compiler/dart2js/resolver_test.dart
@@ -839,7 +839,8 @@
          class StackTrace {}
          class Dynamic_ {}
          class Type {}
-         class Object { Object() : super(); }''';
+         class Object { Object() : super(); }
+         const proxy = 0;''';
   resolveConstructor(script, "Object o = new Object();", "Object", "", 1,
                      expectedWarnings: [],
                      expectedErrors: [MessageKind.SUPER_INITIALIZER_IN_OBJECT],
diff --git a/tests/compiler/dart2js/size_test.dart b/tests/compiler/dart2js/size_test.dart
index 96b5276..d15f924 100644
--- a/tests/compiler/dart2js/size_test.dart
+++ b/tests/compiler/dart2js/size_test.dart
@@ -23,6 +23,7 @@
   class Map {}
   class StackTrace {}
   identical(a, b) => true;
+  const proxy = 0;
 ''';
 
 main() {
diff --git a/tests/compiler/dart2js/static_closure_test.dart b/tests/compiler/dart2js/static_closure_test.dart
index d08c9f0..9581ac9 100644
--- a/tests/compiler/dart2js/static_closure_test.dart
+++ b/tests/compiler/dart2js/static_closure_test.dart
@@ -18,6 +18,6 @@
     // If this test fail, please take a look at the use of
     // toStringWrapper in captureStackTrace in js_helper.dart.
     Expect.isTrue(code.contains(
-        new RegExp(r'print\([$A-Z]+\.main\$closure\);')));
+        new RegExp(r'print\([$A-Z]+\.main\$closure\(\)\);')), code);
   }));
 }
diff --git a/tests/compiler/dart2js/types_of_captured_variables_test.dart b/tests/compiler/dart2js/types_of_captured_variables_test.dart
index 9e802bd..32f61e3 100644
--- a/tests/compiler/dart2js/types_of_captured_variables_test.dart
+++ b/tests/compiler/dart2js/types_of_captured_variables_test.dart
@@ -9,7 +9,7 @@
 const String TEST1 = r"""
 main() {
   var a = 52;
-  var f = () => a + 3;
+  var f = () => a + 87;
   f();
 }
 """;
@@ -18,7 +18,7 @@
 main() {
   var a = 52;
   var g = () { a = 48; };
-  var f = () => a + 3;
+  var f = () => a + 87;
   f();
   g();
 }
@@ -28,7 +28,7 @@
 main() {
   var a = 52;
   var g = () { a = 'foo'; };
-  var f = () => a + 3;
+  var f = () => a + 87;
   f();
   g();
 }
@@ -37,17 +37,17 @@
 main() {
   // Test that we know the type of captured, non-mutated variables.
   asyncTest(() => compileAll(TEST1).then((generated) {
-    Expect.isTrue(generated.contains('+ 3'));
+    Expect.isTrue(generated.contains('+ 87'));
   }));
 
   // Test that we know the type of captured, mutated variables.
   asyncTest(() => compileAll(TEST2).then((generated) {
-    Expect.isTrue(generated.contains('+ 3'));
+    Expect.isTrue(generated.contains('+ 87'));
   }));
 
   // Test that we know when types of a captured, mutated variable
   // conflict.
   asyncTest(() => compileAll(TEST3).then((generated) {
-    Expect.isFalse(generated.contains('+ 3'));
+    Expect.isFalse(generated.contains('+ 87'));
   }));
 }
diff --git a/tests/compiler/dart2js/value_range_test.dart b/tests/compiler/dart2js/value_range_test.dart
index 92ae4c4..89dfabc 100644
--- a/tests/compiler/dart2js/value_range_test.dart
+++ b/tests/compiler/dart2js/value_range_test.dart
@@ -279,7 +279,8 @@
   class Null {}
   class Dynamic_ {}
   class StackTrace {}
-  bool identical(Object a, Object b) {}''';
+  bool identical(Object a, Object b) {}
+  const proxy = 0;''';
 
 const String INTERCEPTORSLIB_WITH_MEMBERS = r'''
   class Interceptor {
diff --git a/tests/compiler/dart2js_extra/dart2js_extra.status b/tests/compiler/dart2js_extra/dart2js_extra.status
index 5ad5f46..c694332 100644
--- a/tests/compiler/dart2js_extra/dart2js_extra.status
+++ b/tests/compiler/dart2js_extra/dart2js_extra.status
@@ -32,7 +32,7 @@
 to_string_test: Fail # Issue 7179.
 runtime_type_test: Fail, OK # Tests extected output of Type.toString().
 
-[ $compiler == dart2js && ($runtime == drt || $runtime == ff || $runtime == safari || $runtime == chrome) ]
+[ $compiler == dart2js && ($runtime == drt || $runtime == ff || $runtime == safari || $runtime == chrome || $runtime == chromeOnAndroid) ]
 isolate2_test/01: Fail # Issue 14458.
 
 [ $jscl ]
diff --git a/tests/compiler/dart2js_extra/deferred/deferred_function_test.dart b/tests/compiler/dart2js_extra/deferred/deferred_function_test.dart
index fb4c282..406eb4a 100644
--- a/tests/compiler/dart2js_extra/deferred/deferred_function_test.dart
+++ b/tests/compiler/dart2js_extra/deferred/deferred_function_test.dart
@@ -25,7 +25,7 @@
 
 main() {
   Expect.throws(() { foo('a'); }, isNoSuchMethodError);
-  Expect.isNull(readFoo());
+  Expect.throws(readFoo, isNoSuchMethodError);
   int counter = 0;
   asyncStart();
   lazy.load().then((bool didLoad) {
@@ -48,5 +48,5 @@
   });
   Expect.equals(0, counter);
   Expect.throws(() { foo('a'); }, isNoSuchMethodError);
-  Expect.isNull(readFoo());
+  Expect.throws(readFoo, isNoSuchMethodError);
 }
diff --git a/tests/compiler/dart2js_extra/mirror_invalid_field_access4_test.dart b/tests/compiler/dart2js_extra/mirror_invalid_field_access4_test.dart
index cdd562e..7c0f972 100644
--- a/tests/compiler/dart2js_extra/mirror_invalid_field_access4_test.dart
+++ b/tests/compiler/dart2js_extra/mirror_invalid_field_access4_test.dart
@@ -34,7 +34,7 @@
   Expect.equals(1, mirror.setField(const Symbol('foo'), 1).reflectee);
   Expect.equals(1, mirror.getField(const Symbol('foo')).reflectee);
   Expect.throws(() => mirror.setField(const Symbol('bar'),  2),
-                (e) => e is UnsupportedError);
+                (e) => e is NoSuchMethodError);
   Expect.throws(() => mirror.getField(const Symbol('bar')),
-                (e) => e is UnsupportedError);
+                (e) => e is NoSuchMethodError);
 }
diff --git a/tests/compiler/dart2js_extra/mirror_invalid_invoke2_test.dart b/tests/compiler/dart2js_extra/mirror_invalid_invoke2_test.dart
index 5955594..9b6d8d2 100644
--- a/tests/compiler/dart2js_extra/mirror_invalid_invoke2_test.dart
+++ b/tests/compiler/dart2js_extra/mirror_invalid_invoke2_test.dart
@@ -29,5 +29,5 @@
   var mirror = reflect(c);
   Expect.equals(1, mirror.invoke(const Symbol('foo'), []).reflectee);
   Expect.throws(() => mirror.invoke(const Symbol('bar'),  []),
-                (e) => e is UnsupportedError);
+                (e) => e is NoSuchMethodError);
 }
diff --git a/tests/compiler/dart2js_extra/mirror_invalid_invoke3_test.dart b/tests/compiler/dart2js_extra/mirror_invalid_invoke3_test.dart
index 0783c70..e142253 100644
--- a/tests/compiler/dart2js_extra/mirror_invalid_invoke3_test.dart
+++ b/tests/compiler/dart2js_extra/mirror_invalid_invoke3_test.dart
@@ -28,5 +28,5 @@
   var mirror = reflect(new C()).type; // Workaround bug 12799.
   Expect.equals(1, mirror.invoke(const Symbol('foo'), []).reflectee);
   Expect.throws(() => mirror.invoke(const Symbol('bar'),  []),
-                (e) => e is UnsupportedError);
+                (e) => e is NoSuchMethodError);
 }
diff --git a/tests/compiler/dart2js_native/internal_library_test.dart b/tests/compiler/dart2js_native/internal_library_test.dart
index d42f826..9645f55 100644
--- a/tests/compiler/dart2js_native/internal_library_test.dart
+++ b/tests/compiler/dart2js_native/internal_library_test.dart
@@ -8,5 +8,5 @@
 import 'dart:_isolate_helper';
 
 void main() {
-  print(lazyPort);
+  print(controlPort);
 }
\ No newline at end of file
diff --git a/tests/corelib/corelib.status b/tests/corelib/corelib.status
index 944143f..e97e429 100644
--- a/tests/corelib/corelib.status
+++ b/tests/corelib/corelib.status
@@ -47,8 +47,10 @@
 compare_to2_test: Fail    # Bug 4018
 
 symbol_test/01: Fail, Pass # bug 11669
-symbol_test/02: Fail, Pass # bug 11669
-symbol_test/03: Fail, Pass # bug 11669
+
+[ $compiler == none && $runtime != dartium && $runtime != drt ]
+symbol_test/02: MissingCompileTimeError # bug 11669
+symbol_test/03: MissingCompileTimeError # bug 11669
 
 [ $compiler == none || $compiler == dart2dart ]
 symbol_test/none: Fail # bug 11669
@@ -122,24 +124,12 @@
 list_removeat_test: fail
 symbol_test/01: fail # test issue 13730; It is static type warning if "const" instance creation argument type is not compatible with parameter type
 
-[ $arch == arm ]
-collection_to_string_test: Pass, Crash # Issue: 11207
-
-[ $arch == simarm && $mode == debug ]
-collection_to_string_test: Pass, Crash # Issue: 11207
-
 [ $arch == simmips ]
 int_parse_radix_test: Skip # Timeout
 
-[ $arch == simmips && $checked ]
-collection_length_test: Pass, Timeout
-
 [ $arch == simarm && $checked ]
 num_parse_test: Pass, Timeout
 
-[ $arch == simmips && $mode == debug ]
-collection_to_string_test: Pass, Crash # Issue: 11207
-
 [ $compiler == dartanalyzer || $compiler == dart2analyzer ]
 error_stack_trace_test: StaticWarning, OK # Test generates errors on purpose.
 iterable_element_at_test: StaticWarning, OK # Test generates errors on purpose.
diff --git a/tests/html/fileapi_test.dart b/tests/html/fileapi_test.dart
index 47f0695..b276e76 100644
--- a/tests/html/fileapi_test.dart
+++ b/tests/html/fileapi_test.dart
@@ -92,12 +92,12 @@
 
   // Do the boilerplate to get several files and directories created to then
   // test the functions that use those items.
-  Future doDirSetup() {
+  Future doDirSetup(String testName) {
     return fs.root.createFile(
-      'file4')
+      'file_$testName')
         .then((FileEntry file) {
           return fs.root.createDirectory(
-              'directory3')
+              'dir_$testName')
             .then((DirectoryEntry dir) {
               return new Future.value(new FileAndDir(file, dir));
             });
@@ -109,7 +109,7 @@
       test('getFileSystem', getFileSystem);
 
       test('readEntries', () {
-        return doDirSetup()
+        return doDirSetup('readEntries')
           .then((fileAndDir) {
             var reader = fileAndDir.dir.createReader();
             return reader.readEntries();
@@ -125,7 +125,7 @@
       test('getFileSystem', getFileSystem);
 
       test('copyTo', () {
-        return doDirSetup()
+        return doDirSetup('copyTo')
           .then((fileAndDir) {
             return fileAndDir.file.copyTo(fileAndDir.dir, name: 'copiedFile');
           }).then((entry) {
@@ -135,7 +135,7 @@
       });
 
       test('getParent', () {
-        return doDirSetup()
+        return doDirSetup('getParent')
           .then((fileAndDir) {
              return fileAndDir.file.getParent();
           }).then((entry) {
@@ -145,12 +145,12 @@
       });
 
       test('moveTo', () {
-        return doDirSetup()
+        return doDirSetup('moveTo')
           .then((fileAndDir) {
             return fileAndDir.file.moveTo(fileAndDir.dir, name: 'movedFile');
           }).then((entry) {
             expect(entry.name, 'movedFile');
-            expect(entry.fullPath, '/directory3/movedFile');
+            expect(entry.fullPath, '/dir_moveTo/movedFile');
             return fs.root.getFile('file4');
           }).catchError((error) {
             expect(error.code, equals(FileError.NOT_FOUND_ERR));
@@ -158,7 +158,7 @@
       });
 
       test('remove', () {
-        return doDirSetup()
+        return doDirSetup('remove')
           .then((fileAndDir) {
             return fileAndDir.file.remove().then((_) {});
           });
@@ -171,7 +171,7 @@
       test('getFileSystem', getFileSystem);
 
       test('createWriter', () {
-        return doDirSetup()
+        return doDirSetup('createWriter')
           .then((fileAndDir) {
             return fileAndDir.file.createWriter();
           }).then((writer) {
@@ -182,7 +182,7 @@
       });
 
       test('file', () {
-        return doDirSetup()
+        return doDirSetup('file')
           .then((fileAndDir) {
             return fileAndDir.file.file()
               .then((fileObj) {
diff --git a/tests/html/html.status b/tests/html/html.status
index bda8941..9eaefff 100644
--- a/tests/html/html.status
+++ b/tests/html/html.status
@@ -6,6 +6,9 @@
 interactive_test: Skip # Must be run manually.
 dromaeo_smoke_test: Skip # Issue 14521, 8257
 
+[ $compiler == dart2js && $csp && $runtime == drt ]
+mutationobserver_test: Skip # http://dartbug.com/15497
+
 [ $compiler == dart2js && $csp ]
 custom/js_custom_test: Fail # Issue 14643
 
@@ -15,7 +18,6 @@
 
 [ $compiler == dart2js && $runtime != drt && $browser ]
 custom/document_register_type_extensions_test/namespaces: Fail # Polyfill does not support createElementNS
-custom/document_register_basic_test: Fail # Polyfill is not case-sensitive
 custom/entered_left_view_test/viewless_document: Fail # Polyfill does not handle this
 custom/attribute_changed_callback_test/unsupported_on_polyfill: Fail # Polyfill does not support
 
@@ -42,25 +44,26 @@
 
 
 [ $compiler == dart2js && $runtime == chromeOnAndroid ]
-crypto_test/functional: Pass, Slow # TODO(kasperl): Please triage.
-input_element_test/supported_datetime-local: Pass, Slow # TODO(kasperl): Please triage.
+crypto_test/functional: Pass, Slow # TODO(dart2js-team): Please triage this failure.
+input_element_test/supported_datetime-local: Pass, Slow # TODO(dart2js-team): Please triage this failure.
 
-fileapi_test/entry: Fail, Pass # TODO(kasperl): Please triage.
-fileapi_test/fileEntry: Fail, Pass # TODO(kasperl): Please triage.
-fileapi_test/getDirectory: Fail, Pass # TODO(kasperl): Please triage.
-fileapi_test/getFile: Fail, Pass # TODO(kasperl): Please triage.
+fileapi_test/entry: Fail, Pass # TODO(dart2js-team): Please triage this failure.
+fileapi_test/fileEntry: Fail, Pass # TODO(dart2js-team): Please triage this failure.
+fileapi_test/getDirectory: Fail, Pass # TODO(dart2js-team): Please triage this failure.
+fileapi_test/getFile: Fail, Pass # TODO(dart2js-team): Please triage this failure.
 
-audiobuffersourcenode_test/supported: Fail # TODO(kasperl): Please triage.
-canvasrenderingcontext2d_test/drawImage_video_element: Fail # TODO(kasperl): Please triage.
-canvasrenderingcontext2d_test/drawImage_video_element_dataUrl: Fail # TODO(kasperl): Please triage.
-element_types_test/supported_datalist: Fail # TODO(kasperl): Please triage.
-fileapi_test/directoryReader: Fail # TODO(kasperl): Please triage.
-input_element_test/supported_week: Fail # TODO(kasperl): Please triage.
-media_stream_test/supported_media: Fail # TODO(kasperl): Please triage.
-rtc_test/supported: Fail # TODO(kasperl): Please triage.
-speechrecognition_test/supported: Fail # TODO(kasperl): Please triage.
-speechrecognition_test/types: Fail # TODO(kasperl): Please triage.
-xhr_test/json: Fail # TODO(kasperl): Please triage.
+audiocontext_test/supported: RuntimeError # TODO(dart2js-team): Please triage this failure.
+audiobuffersourcenode_test/supported: Fail # TODO(dart2js-team): Please triage this failure.
+canvasrenderingcontext2d_test/drawImage_video_element: Fail # TODO(dart2js-team): Please triage this failure.
+canvasrenderingcontext2d_test/drawImage_video_element_dataUrl: Fail # TODO(dart2js-team): Please triage this failure.
+canvasrenderingcontext2d_test/fillText: Fail # TODO(dart2js-team): Please triage this failure.
+element_types_test/supported_datalist: Fail # TODO(dart2js-team): Please triage this failure.
+input_element_test/supported_week: Fail # TODO(dart2js-team): Please triage this failure.
+media_stream_test/supported_media: Fail # TODO(dart2js-team): Please triage this failure.
+rtc_test/supported: Fail # TODO(dart2js-team): Please triage this failure.
+speechrecognition_test/supported: Fail # TODO(dart2js-team): Please triage this failure.
+speechrecognition_test/types: Fail # TODO(dart2js-team): Please triage this failure.
+xhr_test/json: Fail # TODO(dart2js-team): Please triage this failure.
 
 
 [ $compiler == dart2js && $runtime == ie10 ]
@@ -71,14 +74,13 @@
 [ $compiler == dart2js && ( $runtime == ie9 || $runtime == ie10 ) ]
 worker_api_test: Fail # IE does not support URL.createObjectURL in web workers.
 
-[ $compiler == dart2js && $runtime == safari ]
-audiobuffersourcenode_test/supported: Pass, Timeout # Issue 12772
-
-
 [ $compiler == dart2js && $browser && $checked ]
 postmessage_structured_test/typed_arrays: Fail # Issue 10097
 postmessage_structured_test/primitives: Fail # Issue 10097
 
+[ $compiler == dart2js && $runtime == chrome ]
+selectelement_test: Skip # http://dartbug.com/15516
+
 [ $runtime == chrome ]
 canvasrenderingcontext2d_test/drawImage_video_element: Pass,Fail # Issue 11836
 canvasrenderingcontext2d_test/drawImage_video_element_dataUrl: Pass,Fail # Issue 11836
@@ -88,8 +90,6 @@
 xhr_test: Pass, Fail # Issue 11884
 xhr_cross_origin_test: Pass, Fail # Issue 11884
 
-fileapi_test/fileEntry: Pass, Fail # Issue 15355
-
 [$runtime == drt || $runtime == dartium || $runtime == chrome || $runtime == chromeOnAndroid]
 webgl_1_test: Pass, Fail # Issue 8219
 
@@ -171,7 +171,6 @@
 isolates_test: Timeout # Issue 13027
 blob_constructor_test: Fail
 custom/document_register_type_extensions_test/namespaces: Fail # Issue 13193
-document_test/document: Pass, Fail # BUG(9654) need per-instance patching
 dom_constructors_test: Fail
 element_test/click: Fail                # IE does not support firing this event.
 form_element_test: Fail # Issue 4793.
@@ -273,14 +272,14 @@
 worker_test: Skip # Issue 13221
 worker_api_test: Skip # Issue 13221
 element_types_test/supported_track: Pass, Fail
-input_element_test/supported_month: Fail, Crash
-input_element_test/supported_time: Fail, Crash
-input_element_test/supported_week: Fail, Crash
+input_element_test/supported_month: RuntimeError
+input_element_test/supported_time: RuntimeError
+input_element_test/supported_week: RuntimeError
 webgl_1_test: Pass, Fail # Issue 8219
 canvasrenderingcontext2d_test/drawImage_video_element: Fail # Safari does not support drawImage w/ video element
 canvasrenderingcontext2d_test/drawImage_video_element_dataUrl: Fail # Safari does not support drawImage w/ video element
 audiocontext_test/functional: Fail # Issue 14354
-websql_test/functional: Pass, Fail # Issue 14523
+websql_test/functional: RuntimeError # Issue 14523
 
 
 # Safari Feature support statuses-
diff --git a/tests/isolate/isolate.status b/tests/isolate/isolate.status
index 4338e96..0df05ed2 100644
--- a/tests/isolate/isolate.status
+++ b/tests/isolate/isolate.status
@@ -50,12 +50,11 @@
 [ $compiler == dart2dart ]
 *: Skip # Issue 12629
 
-[ $compiler == dart2js && $runtime == ff && ($system == windows || $system == linux) ]
-mandel_isolate_test: Pass, Fail, Timeout # Issue 7952
-
-[ $compiler == dart2js && ( $runtime == ff || $runtime == safari || $runtime == drt || $runtime == chrome ) ]
+[ $compiler == dart2js && ( $runtime == ff || $runtime == safari || $runtime == drt || $runtime == chrome || $runtime == chromeOnAndroid) ]
 isolate_stress_test: Pass, Slow # Issue 10697
-isolate_stress_test: Timeout # Issue 14461
+
+[ $compiler == dart2js && $runtime == chromeOnAndroid ]
+unresolved_ports_test: Pass, Timeout # Issue 15610
 
 [ $compiler == none && $runtime == drt ]
 isolate_stress_test: Skip # Issue 14463
diff --git a/tests/language/code_motion_crash_test.dart b/tests/language/code_motion_crash_test.dart
new file mode 100644
index 0000000..315d9a3
--- /dev/null
+++ b/tests/language/code_motion_crash_test.dart
@@ -0,0 +1,43 @@
+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+// Regression test for dart2js that used to crash during the
+// [SsaCodeMotion] phase on this code.
+
+class A {
+  final finalField;
+  var field = 2;
+  foo() {
+    new A().field = 42;
+  }
+  A._() : finalField = 42;
+  A() : finalField = [new A._(), new B(), new Object()][1];
+}
+
+class B {
+  foo() {}
+  bar() {}
+}
+
+main() {
+  var a = new A();
+  // Create a new block for SsaCodeMotion: the phase will want to move
+  // field access on [a] to this block.
+  if (true) {
+    var b = a.finalField;
+    var d = a.field;
+    b.bar();
+
+    // [c] gets GVN'ed with [b]. As a consequence, the type propagator
+    // that runs after GVN sees that [c] can only be a [B] because of
+    // the call to [bar].
+    var c = a.finalField;
+    c.foo();
+
+    // [e] does not get GVN'ed because the GVN phase sees [c.foo()] as
+    // having side effects.
+    var e = a.field;
+    if (d + e != 4) throw 'Test failed';
+  }
+}
diff --git a/tests/language/cyclic_type_test.dart b/tests/language/cyclic_type_test.dart
new file mode 100644
index 0000000..4c5820c
--- /dev/null
+++ b/tests/language/cyclic_type_test.dart
@@ -0,0 +1,32 @@
+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+// Tests self referencing types.
+
+import "package:expect/expect.dart";
+
+class Base<T> {
+  get t => T;
+}
+
+class Derived<T> extends Base<Derived<Derived<T>>> {}
+
+class Derived1<T> extends Base<Derived2<T>> {}
+
+class Derived2<T> extends Base<Derived1<Derived2<T>>> {}
+
+main() {
+  var d = new Derived();
+  Expect.equals("Derived<Derived>", d.t.toString());
+  d = new Derived<bool>();
+  Expect.equals("Derived<Derived<bool>>", d.t.toString());
+  d = new Derived<Derived>();
+  Expect.equals("Derived<Derived<Derived>>", d.t.toString());
+  d = new Derived1();
+  Expect.equals("Derived2", d.t.toString());
+  d = new Derived2();
+  Expect.equals("Derived1<Derived2>", d.t.toString());
+  d = new Derived2<Derived1<int>>();
+  Expect.equals("Derived1<Derived2<Derived1<int>>>", d.t.toString());
+}
diff --git a/tests/language/language.status b/tests/language/language.status
index 198b732..3fadd70 100644
--- a/tests/language/language.status
+++ b/tests/language/language.status
@@ -6,11 +6,9 @@
 # current state of the language.
 
 [ $compiler == none ]
-mixin_regress_13688_test: RuntimeError # Issue 15244
 mixin_super_constructor_named_test: Fail # Issue 12631
 mixin_super_constructor_positionals_test: Fail # Issue 12631
 built_in_identifier_prefix_test: Fail # Issue 6970
-f_bounded_equality_test: RuntimeError # Issue 14000
 
 # These bugs refer currently ongoing language discussions.
 constructor_initializer_test/none: Fail # Issue 12633
@@ -83,5 +81,3 @@
 typed_message_test: Crash, Fail # Issue 13921, 14400
 vm/optimized_guarded_field_isolates_test: Fail # Issue 13921.
 
-[ $arch == simarm || $arch == simmips ]
-vm/optimized_identical_test: Pass, Crash # http://dartbug.com/15235
diff --git a/tests/language/language_analyzer.status b/tests/language/language_analyzer.status
index 98fc880..bcdd6cf 100644
--- a/tests/language/language_analyzer.status
+++ b/tests/language/language_analyzer.status
@@ -149,9 +149,6 @@
 # test issue 14228
 black_listed_test/none: fail # test issue 14228, warnings are required but not expected
 
-# test issue 14363, "if ((a is B))" has the same effect as "if (a is B)", so no static warning expected
-type_promotion_parameter_test/53: Fail
-
 # test issue 14410, "typedef C = " is now really illegal syntax
 mixin_illegal_syntax_test/none: fail
 
@@ -175,6 +172,10 @@
 least_upper_bound_expansive_test/11: MissingStaticWarning # Issue 15060
 least_upper_bound_expansive_test/12: MissingStaticWarning # Issue 15060
 
+# test issue 15467
+proxy_test/05: StaticWarning # Issue 15467
+proxy_test/06: StaticWarning # Issue 15467
+
 abstract_exact_selector_test: StaticWarning
 abstract_getter_test: StaticWarning
 abstract_object_method_test: StaticWarning
diff --git a/tests/language/language_analyzer2.status b/tests/language/language_analyzer2.status
index 7f9c48b..e7da090 100644
--- a/tests/language/language_analyzer2.status
+++ b/tests/language/language_analyzer2.status
@@ -18,6 +18,12 @@
 override_field_test/03: fail
 method_override7_test/03: Fail # Issue 11496
 
+assignable_expression_test/02: Fail # Issue 15471
+assignable_expression_test/12: Fail # Issue 15471
+assignable_expression_test/22: Fail # Issue 15471
+assignable_expression_test/32: Fail # Issue 15471
+assignable_expression_test/42: Fail # Issue 15471
+
 # Please add new failing tests before this line.
 # Section below is for invalid tests.
 #
@@ -143,9 +149,6 @@
 # test issue 14228
 black_listed_test/none: fail # test issue 14228, warnings are required but not expected
 
-# test issue 14363, "if ((a is B))" has the same effect as "if (a is B)", so no static warning expected
-type_promotion_parameter_test/53: Fail
-
 # test issue 14410, "typedef C = " is now really illegal syntax
 mixin_illegal_syntax_test/none: fail
 
@@ -169,6 +172,10 @@
 least_upper_bound_expansive_test/11: MissingStaticWarning # Issue 15060
 least_upper_bound_expansive_test/12: MissingStaticWarning # Issue 15060
 
+# test issue 15467
+proxy_test/05: StaticWarning # Issue 15467
+proxy_test/06: StaticWarning # Issue 15467
+
 abstract_exact_selector_test: StaticWarning
 abstract_getter_test: StaticWarning
 abstract_object_method_test: StaticWarning
@@ -454,4 +461,3 @@
 vm/type_cast_vm_test: StaticWarning
 vm/type_vm_test: StaticWarning
 void_type_test: StaticWarning
-
diff --git a/tests/language/language_dart2js.status b/tests/language/language_dart2js.status
index 70f90358..8b873d9 100644
--- a/tests/language/language_dart2js.status
+++ b/tests/language/language_dart2js.status
@@ -82,6 +82,7 @@
 issue13474_test: RuntimeError, OK
 
 [ $compiler == dart2js && $minified ]
+cyclic_type_test: Fail # Issue 12605.
 f_bounded_quantification4_test: Fail # Issue 12605.
 f_bounded_quantification5_test: Fail # Issue 12605.
 mixin_generic_test: Fail # Issue 12605.
@@ -92,6 +93,7 @@
 mixin_mixin6_test: Fail # Issue 12605.
 
 [ $compiler == dart2js ]
+function_type_alias9_test/00: Crash
 malformed_test/none: RuntimeError # Issue 12695
 branch_canonicalization_test: RuntimeError # Issue 638.
 identical_closure2_test: RuntimeError # Issue 1533, Issue 12596
@@ -197,7 +199,6 @@
 [ $compiler == dart2dart ]
 regress_13494_test: Fail # Issue 13494
 malformed_test/none: CompileTimeError # Issue 12695
-mixin_regress_13688_test: RuntimeError # Issue 15244
 mixin_super_constructor_named_test: Fail # Issue 12631
 mixin_super_constructor_positionals_test: Fail # Issue 12631
 
@@ -245,7 +246,7 @@
 not_enough_positional_arguments_test/05: Fail # Issue 12839
 
 metadata_test: Fail # Issue 12762
-const_var_test: Pass, Fail # Issue 12794
+const_var_test: CompileTimeError # Issue 12794
 map_literal3_test: Fail # Issue 12794
 external_test/13: Fail # Issue 12888
 built_in_identifier_test/01: Fail # Issue 13022
@@ -265,7 +266,6 @@
 constructor5_test: Fail
 constructor6_test: Fail
 closure_in_initializer_test: Fail
-f_bounded_equality_test: RuntimeError # Issue 14000
 
 # Minified mode failures.
 
@@ -296,6 +296,7 @@
 malbounded_instantiation_test/01: Fail # Issue 14132
 
 [ $compiler == dart2dart && $minified ]
+cyclic_type_test: Fail # Issue 12605.
 super_getter_setter_test: Fail # Issue 11065.
 f_bounded_quantification4_test: Fail # Issue 12605.
 f_bounded_quantification5_test: Fail # Issue 12605.
@@ -313,3 +314,6 @@
 
 [ $runtime == ie9 ]
 stack_trace_test: Fail, OK # Stack traces not available in IE9.
+
+[ $compiler == dart2js && $host_checked ]
+const_factory_with_body_test/01: Crash
diff --git a/tests/language/list_tracer_in_map_test.dart b/tests/language/list_tracer_in_map_test.dart
new file mode 100644
index 0000000..95290a0
--- /dev/null
+++ b/tests/language/list_tracer_in_map_test.dart
@@ -0,0 +1,14 @@
+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+// Regression test for dart2js, whose type inferrer used to not see
+// literal maps as places where a list could escape.
+
+var b = [42];
+var a = {'foo': b};
+
+main() {
+  a['foo'].clear();
+  if (b.length != 0) throw 'Test failed';
+}
diff --git a/tests/language/phi_merge_test.dart b/tests/language/phi_merge_test.dart
new file mode 100644
index 0000000..8001011
--- /dev/null
+++ b/tests/language/phi_merge_test.dart
@@ -0,0 +1,30 @@
+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+// Regression test for dart2js that used to crash on this code.
+
+class A {
+  operator[]=(index, value) {
+    switch (value) {
+      case 42: break;
+      case 43: break;
+    }
+  }
+}
+
+main() {
+  // Make [a] a phi.
+  var a;
+  if (true) {
+    a = new A();
+  } else {
+    a = new A();
+  }
+  // `A[]=` being inlined, the compiler was confused when merging the
+  // phis after the switch.
+  a[0] = 42;
+
+  // Use [a] to provoke the crash.
+  print(a);
+}
diff --git a/tests/language/proxy2_test.dart b/tests/language/proxy2_test.dart
new file mode 100644
index 0000000..ad69472
--- /dev/null
+++ b/tests/language/proxy2_test.dart
@@ -0,0 +1,27 @@
+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+// Test for static warnings for member access on classes with @proxy annotation.
+
+import 'dart:core' as core;
+
+class Fake {
+  const Fake();
+}
+
+const proxy = const Fake();
+
+@proxy
+class WrongProxy {}
+
+@core.proxy
+class PrefixProxy {}
+
+main() {
+  try { new WrongProxy().foo; } catch (e) {}  /// 01: static type warning
+  try { new WrongProxy().foo(); } catch (e) {}  /// 02: static type warning
+
+  try { new PrefixProxy().foo; } catch (e) {} /// 03: ok
+  try { new PrefixProxy().foo(); } catch (e) {} /// 04: ok
+}
diff --git a/tests/language/proxy_test.dart b/tests/language/proxy_test.dart
new file mode 100644
index 0000000..4d4c1c7
--- /dev/null
+++ b/tests/language/proxy_test.dart
@@ -0,0 +1,26 @@
+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+// Test for static warnings for member access on classes with @proxy annotation.
+
+class NonProxy {}
+
+@proxy
+class Proxy {}
+
+const alias = proxy;
+
+@alias
+class AliasProxy {}
+
+main() {
+  try { new NonProxy().foo; } catch (e) {} /// 01: static type warning
+  try { new NonProxy().foo(); } catch (e) {} /// 02: static type warning
+
+  try { new Proxy().foo; } catch (e) {} /// 03: ok
+  try { new Proxy().foo(); } catch (e) {} /// 04: ok
+
+  try { new AliasProxy().foo; } catch (e) {} /// 05: ok
+  try { new AliasProxy().foo(); } catch (e) {} /// 06: ok
+}
\ No newline at end of file
diff --git a/tests/language/truncdiv_uint32_test.dart b/tests/language/truncdiv_uint32_test.dart
new file mode 100644
index 0000000..46930a4
--- /dev/null
+++ b/tests/language/truncdiv_uint32_test.dart
@@ -0,0 +1,9 @@
+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+var a = [0xFFFFFFFF];
+
+main() {
+  if (a[0] ~/ 1 != 0xFFFFFFFF) throw 'Test failed';
+}
diff --git a/tests/language/type_variable_function_type_test.dart b/tests/language/type_variable_function_type_test.dart
new file mode 100644
index 0000000..6c2d515
--- /dev/null
+++ b/tests/language/type_variable_function_type_test.dart
@@ -0,0 +1,25 @@
+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'package:expect/expect.dart';
+
+typedef T Func<T>();
+
+class Foo<S> {
+  m(x) => x is Func<S>;
+}
+
+class Bar<T> {
+  f() {
+    T local() {}
+    return local;
+  }
+}
+
+void main() {
+  var x = new Foo<List<String>>();
+  if (new DateTime.now().millisecondsSinceEpoch == 42) x = new Foo<int>();
+  Expect.isFalse(x.m(new Bar<String>().f()));
+  Expect.isTrue(x.m(new Bar<List<String>>().f()));
+}
diff --git a/tests/lib/analyzer/analyze_library.status b/tests/lib/analyzer/analyze_library.status
index d05992f..5a398f4 100644
--- a/tests/lib/analyzer/analyze_library.status
+++ b/tests/lib/analyzer/analyze_library.status
@@ -11,7 +11,6 @@
 lib/html/dartium/html_dartium: CompileTimeError
 lib/html/html_common/html_common: CompileTimeError
 lib/html/html_common/html_common_dart2js: CompileTimeError
-lib/html/html_common/lists: Pass, CompileTimeError
 lib/indexed_db/dart2js/indexed_db_dart2js: CompileTimeError
 lib/indexed_db/dartium/indexed_db_dartium: CompileTimeError
 lib/_internal/compiler/samples/compile_loop/compile_loop: CompileTimeError
@@ -27,18 +26,7 @@
 lib/_internal/dartdoc/lib/src/client/search: CompileTimeError
 lib/_internal/dartdoc/lib/universe_serializer: CompileTimeError
 lib/_internal/pub/lib/src/barback: Pass, CompileTimeError # Pass necessary, since CompileTimeError is valid for everything in that directory (not only for src/barback.dart)
-lib/_internal/pub/lib/src/barback/dart2js_transformer: CompileTimeError
-lib/_internal/pub/lib/src/barback/dart_forwarding_transformer: CompileTimeError
-lib/_internal/pub/lib/src/barback/load_all_transformers: CompileTimeError
-lib/_internal/pub/lib/src/barback/load_transformers: CompileTimeError
-lib/_internal/pub/lib/src/barback/pub_package_provider: CompileTimeError
-lib/_internal/pub/lib/src/barback/server: CompileTimeError
-lib/_internal/pub/lib/src/barback/sources: CompileTimeError
-lib/_internal/pub/lib/src/command/build: CompileTimeError
-lib/_internal/pub/lib/src/command/lish: CompileTimeError
-lib/_internal/pub/lib/src/command/list_package_dirs: CompileTimeError
 lib/_internal/pub/lib/src/command: Pass, CompileTimeError # Pass necessary, since CompileTimeError is valid for everything in that directory (not only for src/command.dart)
-lib/_internal/pub/lib/src/command/uploader: CompileTimeError
 lib/_internal/pub/test/descriptor: Pass, CompileTimeError # Pass necessary, since CompileTimeError is valid for everything in that directory (not only for test/descriptor.dart)
 lib/_internal/pub/test/lish/utils: CompileTimeError
 lib/_internal/pub/test/oauth2/utils: CompileTimeError
diff --git a/tests/lib/async/multiple_timer_test.dart b/tests/lib/async/multiple_timer_test.dart
index 0a57ef0..6310813 100644
--- a/tests/lib/async/multiple_timer_test.dart
+++ b/tests/lib/async/multiple_timer_test.dart
@@ -12,13 +12,11 @@
 const Duration TIMEOUT3 = const Duration(milliseconds: 500);
 const Duration TIMEOUT4 = const Duration(milliseconds: 1500);
 
-// The stopwatch is more precise than the Timer. It can happen that
-// the TIMEOUT triggers *slightly* too early on the VM. So we add a millisecond
-// as safetymargin.
+// The stopwatch is more precise than the Timer.
 // Some browsers (Firefox and IE so far) can trigger too early. So we add more
 // margin. We use identical(1, 1.0) as an easy way to know if the test is
 // compiled by dart2js.
-int get safetyMargin => identical(1, 1.0) ? 100 : 1;
+int get safetyMargin => identical(1, 1.0) ? 100 : 0;
 
 main() {
   test("multiple timer test", () {
diff --git a/tests/lib/async/stream_periodic3_test.dart b/tests/lib/async/stream_periodic3_test.dart
index 7f31d75..a82e556 100644
--- a/tests/lib/async/stream_periodic3_test.dart
+++ b/tests/lib/async/stream_periodic3_test.dart
@@ -8,13 +8,11 @@
 import "dart:async";
 import '../../../pkg/unittest/lib/unittest.dart';
 
-// The stopwatch is more precise than the Timer. It can happen that
-// the TIMEOUT triggers *slightly* too early on the VM. So we add a millisecond
-// as safetymargin.
+// The stopwatch is more precise than the Timer.
 // Some browsers (Firefox and IE so far) can trigger too early. So we add more
 // margin. We use identical(1, 1.0) as an easy way to know if the test is
 // compiled by dart2js.
-int get safetyMargin => identical(1, 1.0) ? 5 : 1;
+int get safetyMargin => identical(1, 1.0) ? 5 : 0;
 
 main() {
   test("stream-periodic3", () {
diff --git a/tests/lib/async/timer_isolate_test.dart b/tests/lib/async/timer_isolate_test.dart
index 8c6c5fb..1e0cb9b 100644
--- a/tests/lib/async/timer_isolate_test.dart
+++ b/tests/lib/async/timer_isolate_test.dart
@@ -13,7 +13,7 @@
 // Some browsers (Firefox and IE so far) can trigger too early. Add a safety
 // margin. We use identical(1, 1.0) as an easy way to know if the test is
 // compiled by dart2js.
-int get safetyMargin => identical(1, 1.0) ? 100 : 1;
+int get safetyMargin => identical(1, 1.0) ? 100 : 0;
 
 createTimer(replyTo) {
   new Timer(TIMEOUT, () {
diff --git a/tests/lib/async/timer_test.dart b/tests/lib/async/timer_test.dart
index cbb317c..057d3a7 100644
--- a/tests/lib/async/timer_test.dart
+++ b/tests/lib/async/timer_test.dart
@@ -18,7 +18,7 @@
 // Some browsers (Firefox and IE so far) can trigger too early. Add a safety
 // margin. We use identical(1, 1.0) as an easy way to know if the test is
 // compiled by dart2js.
-int get safetyMargin => identical(1, 1.0) ? 100 : 1;
+int get safetyMargin => identical(1, 1.0) ? 100 : 0;
 
 void timeoutHandler() {
   int endTime = (new DateTime.now()).millisecondsSinceEpoch;
diff --git a/tests/lib/lib.status b/tests/lib/lib.status
index 7567494..789712d 100644
--- a/tests/lib/lib.status
+++ b/tests/lib/lib.status
@@ -2,6 +2,11 @@
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
+[ $compiler == dart2js && $checked && $runtime == ie9 ]
+convert/ascii_test: Skip # http://dartbug.com/15498
+convert/streamed_conversion_json_utf8_encode_test: Skip # http://dartbug.com/15498
+convert/streamed_conversion_utf8_encode_test: Skip # http://dartbug.com/15498
+
 [ $csp ]
 mirrors/delegate_test: RuntimeError # Issue 13864
 
@@ -38,6 +43,7 @@
 mirrors/instance_members_unimplemented_interface_test: RuntimeError # Issue 14633
 mirrors/intercepted_superclass_test: RuntimeError # Issue 13644
 mirrors/invoke_test: RuntimeError # Issue 11954
+mirrors/invoke_call_through_getter_test: RuntimeError # Issue 15138
 mirrors/invoke_closurization_test: RuntimeError # Issue 13002
 mirrors/invoke_named_test/none: RuntimeError # Issue 12863
 mirrors/invoke_private_test: CompileTimeError # Issue 12164
@@ -54,7 +60,6 @@
 mirrors/metadata_allowed_values_test/14: MissingCompileTimeError # Issue 14548
 mirrors/method_mirror_name_test: RuntimeError # Issue 6335
 mirrors/method_mirror_properties_test: RuntimeError # Issue 11861
-mirrors/method_mirror_returntype_test : RuntimeError # Issue 11928
 mirrors/method_mirror_source_test : RuntimeError # Issue 6490
 mirrors/mirrors_test: RuntimeError # TODO(ahe): I'm working on fixing this.
 mirrors/mixin_test: RuntimeError # Issue 12464
@@ -69,21 +74,27 @@
 mirrors/redirecting_factory_test/02: RuntimeError # Issue 6490
 mirrors/reflected_type_test: RuntimeError # Issue 12607
 mirrors/repeated_private_anon_mixin_app_test: RuntimeError # Issue 14670
-mirrors/static_members_test: CompileTimeError # Issue 14633, Issue 12164
 mirrors/symbol_validation_test: RuntimeError # Issue 13597
-mirrors/toplevel_members_test: CompileTimeError # Issue 14633, Issue 12164
+mirrors/static_members_test: RuntimeError # Issue 14633, Issue 12164
+mirrors/synthetic_accessor_properties_test: RuntimeError # Issue 14633
+mirrors/toplevel_members_test: RuntimeError # Issue 14633, Issue 12164
 mirrors/typedef_test/none: RuntimeError # http://dartbug.com/6490
 mirrors/typedef_metadata_test: RuntimeError # Issue 12785
 mirrors/typevariable_mirror_metadata_test: CompileTimeError # Issue 10905
 mirrors/type_variable_owner_test/01: RuntimeError # Issue 12785
 mirrors/variable_is_const_test/none: RuntimeError # Issue 14671
 mirrors/variable_is_const_test/01: MissingCompileTimeError # Issue 5519
+mirrors/list_constructor_test/01: RuntimeError # Issue 13523
 
 [ $runtime == safari ]
-mirrors/return_type_test: Pass, Timeout # Issue 12858
 typed_data/setRange_2_test: Fail # Safari doesn't fully implement spec for TypedArray.set
 typed_data/setRange_3_test: Fail # Safari doesn't fully implement spec for TypedArray.set
 
+[ $compiler == dart2js && $runtime == chromeOnAndroid ]
+typed_data/setRange_2_test: RuntimeError # TODO(dart2js-team): Please triage this failure.
+typed_data/setRange_3_test: RuntimeError # TODO(dart2js-team): Please triage this failure.
+mirrors/invoke_subscript_test: RuntimeError, Timeout # Issue 15610
+
 [ $compiler == dart2js && $runtime != jsshell && $runtime != safari && $runtime != ff && $runtime != ie9 && $runtime != ie10]
 math/math_test: RuntimeError
 math/math2_test: RuntimeError
@@ -131,6 +142,11 @@
 [ $compiler == dart2js && $checked ]
 convert/utf85_test: Pass, Slow # Issue 12029.
 
+[ $compiler == dart2js ]
+convert/chunked_conversion_utf88_test: Slow, Pass
+convert/utf85_test: Slow, Pass
+
+
 [ $compiler == dart2js && $browser ]
 async/timer_not_available_test: Fail, OK # only meant to test when there is no way to
                                          # implement timer (currently only in d8)
@@ -144,13 +160,13 @@
 
 [ $compiler == dart2js && $minified ]
 mirrors/typedef_test/01: Fail # http://dartbug.com/6490
+mirrors/list_constructor_test/none: Fail # http://dartbug.com/15555
 
 [ $runtime == ff ]
 # FF setTimeout can fire early: https://bugzilla.mozilla.org/show_bug.cgi?id=291386
 async/multiple_timer_test: Pass, Fail # Issue 14734
 async/timer_isolate_test: Pass, Fail # Issue 14734
 async/timer_test: Pass, Fail # Issue 14734
-convert/chunked_conversion_utf88_test: Pass, Timeout  # Issue 12029
 convert/streamed_conversion_utf8_encode_test: Pass, Timeout  # Issue 12029
 convert/streamed_conversion_utf8_decode_test: Pass, Slow  # Issue 12029
 
@@ -188,17 +204,10 @@
 mirrors/intercepted_object_test: Fail, OK # TODO(ahe): Slight broken test to ensure test coverage on dart2js.
 mirrors/typedef_test/01: Fail, OK # Incorrect dart2js behavior.
 
-mirrors/generics_double_substitution_test/01: RuntimeError # Issue 14869
-
 mirrors/generic_local_function_test: RuntimeError # Issue 14913
-
 mirrors/symbol_validation_test: RuntimeError # Issue 13596
-
-mirrors/static_members_test: RuntimeError # Issue 14632
+mirrors/synthetic_accessor_properties_test/none: RuntimeError # Issue 14632
 mirrors/toplevel_members_test: RuntimeError # Issue 14632
-mirrors/instance_members_test: RuntimeError # Issue 14632
-mirrors/instance_members_with_override_test: RuntimeError # Issue 14632
-mirrors/instance_members_unimplemented_interface_test: RuntimeError # Issue 14632
 
 async/timer_not_available_test: SkipByDesign # only meant to test when there is no way to implement timer (currently only in d8)
 
@@ -211,6 +220,12 @@
 typed_data/setRange_2_test: Fail # Issue 15413
 typed_data/setRange_3_test: Fail # Issue 15413
 
+[ $compiler == none && ( $runtime == drt || $runtime == dartium ) ]
+async/timer_test: Fail, Pass # Issue 15487
+async/multiple_timer_test: Fail, Pass # Issue 15487
+async/stream_periodic3_test: Fail, Pass # Issue 15487
+async/timer_isolate_test: Fail, Pass # Issue 15487
+
 [ $compiler == none && $runtime == drt && $system == windows ]
 async/multiple_timer_test: Fail, Pass # See Issue 10982
 async/timer_test: Fail, Pass # See Issue 10982
diff --git a/tests/lib/mirrors/instance_members_test.dart b/tests/lib/mirrors/instance_members_test.dart
index cf223d5..8f2f477 100644
--- a/tests/lib/mirrors/instance_members_test.dart
+++ b/tests/lib/mirrors/instance_members_test.dart
@@ -50,5 +50,5 @@
      const Symbol('inheritedInstanceVariable='),
      #mixinInstanceVariable,
      const Symbol('mixinInstanceVariable=')],
-    selectKeys(cm.instanceMembers, (dm) => dm.isSynthetic));
+    selectKeys(cm.instanceMembers, (dm) => !dm.isPrivate && dm.isSynthetic));
 }
diff --git a/tests/lib/mirrors/invoke_call_through_getter_test.dart b/tests/lib/mirrors/invoke_call_through_getter_test.dart
new file mode 100644
index 0000000..71dca68
--- /dev/null
+++ b/tests/lib/mirrors/invoke_call_through_getter_test.dart
@@ -0,0 +1,139 @@
+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+library test.invoke_call_through_getter;
+
+import 'dart:mirrors';
+
+import 'package:expect/expect.dart';
+
+class FakeFunctionCall {
+  call(x, y) => '1 $x $y';
+}
+class FakeFunctionNSM {
+  noSuchMethod(msg) => msg.positionalArguments.join(', ');
+}
+
+class C {
+  get fakeFunctionCall => new FakeFunctionCall();
+  get fakeFunctionNSM => new FakeFunctionNSM();
+  get closure => (x, y) => '2 $this $x $y';
+  get closureOpt => (x, y, [z, w]) => '3 $this $x $y $z $w';
+  get closureNamed => (x, y, {z, w}) => '4 $this $x $y $z $w';
+  get notAClosure => 'Not a closure';
+  noSuchMethod(msg) => 'DNU';
+
+  toString() => 'C';
+}
+
+testInstanceBase() {
+  var c = new C();
+
+  Expect.equals('1 5 6', c.fakeFunctionCall(5, 6));
+  Expect.equals('7, 8', c.fakeFunctionNSM(7, 8));
+  Expect.equals('2 C 9 10', c.closure(9, 10));
+  Expect.equals('3 C 11 12 13 null', c.closureOpt(11, 12, 13));
+  Expect.equals('4 C 14 15 null 16', c.closureNamed(14, 15, w: 16));
+  Expect.equals('DNU', c.doesNotExist(17, 18));
+  Expect.throws(() => c.closure('wrong arity'), (e) => e is NoSuchMethodError);
+  Expect.throws(() => c.notAClosure(), (e) => e is NoSuchMethodError);
+}
+
+testInstanceReflective() {
+  InstanceMirror im = reflect(new C());
+
+  Expect.equals('1 5 6',
+                im.invoke(#fakeFunctionCall, [5, 6]).reflectee);
+  Expect.equals('7, 8',
+                im.invoke(#fakeFunctionNSM, [7, 8]).reflectee);
+  Expect.equals('2 C 9 10',
+                im.invoke(#closure, [9, 10]).reflectee);
+  Expect.equals('3 C 11 12 13 null',
+                im.invoke(#closureOpt, [11, 12, 13]).reflectee);
+  Expect.equals('4 C 14 15 null 16',
+                im.invoke(#closureNamed, [14, 15], {#w: 16}).reflectee);
+  Expect.equals('DNU',
+                im.invoke(#doesNotExist, [17, 18]).reflectee);
+  Expect.throws(() => im.invoke(#closure, ['wrong arity']),
+                (e) => e is NoSuchMethodError);
+  Expect.throws(() => im.invoke(#notAClosure, []),
+                (e) => e is NoSuchMethodError);
+}
+
+class D {
+  static get fakeFunctionCall => new FakeFunctionCall();
+  static get fakeFunctionNSM => new FakeFunctionNSM();
+  static get closure => (x, y) => '2 $x $y';
+  static get closureOpt => (x, y, [z, w]) => '3 $x $y $z $w';
+  static get closureNamed => (x, y, {z, w}) => '4 $x $y $z $w';
+  static get notAClosure => 'Not a closure';
+}
+
+testClassBase() {
+  Expect.equals('1 5 6', D.fakeFunctionCall(5, 6));
+  Expect.equals('7, 8', D.fakeFunctionNSM(7, 8));
+  Expect.equals('2 9 10', D.closure(9, 10));
+  Expect.equals('3 11 12 13 null', D.closureOpt(11, 12, 13));
+  Expect.equals('4 14 15 null 16', D.closureNamed(14, 15, w: 16));
+  Expect.throws(() => D.closure('wrong arity'), (e) => e is NoSuchMethodError);
+}
+
+testClassReflective() {
+  ClassMirror cm = reflectClass(D);
+
+  Expect.equals('1 5 6',
+                cm.invoke(#fakeFunctionCall, [5, 6]).reflectee);
+  Expect.equals('7, 8',
+                cm.invoke(#fakeFunctionNSM, [7, 8]).reflectee);
+  Expect.equals('2 9 10',
+                cm.invoke(#closure, [9, 10]).reflectee);
+  Expect.equals('3 11 12 13 null',
+                cm.invoke(#closureOpt, [11, 12, 13]).reflectee);
+  Expect.equals('4 14 15 null 16',
+                cm.invoke(#closureNamed, [14, 15], {#w: 16}).reflectee);
+  Expect.throws(() => cm.invoke(#closure, ['wrong arity']),
+                (e) => e is NoSuchMethodError);
+}
+
+get fakeFunctionCall => new FakeFunctionCall();
+get fakeFunctionNSM => new FakeFunctionNSM();
+get closure => (x, y) => '2 $x $y';
+get closureOpt => (x, y, [z, w]) => '3 $x $y $z $w';
+get closureNamed => (x, y, {z, w}) => '4 $x $y $z $w';
+get notAClosure => 'Not a closure';
+
+testLibraryBase() {
+  Expect.equals('1 5 6', fakeFunctionCall(5, 6));
+  Expect.equals('7, 8', fakeFunctionNSM(7, 8));
+  Expect.equals('2 9 10', closure(9, 10));
+  Expect.equals('3 11 12 13 null', closureOpt(11, 12, 13));
+  Expect.equals('4 14 15 null 16', closureNamed(14, 15, w: 16));
+  Expect.throws(() => closure('wrong arity'), (e) => e is NoSuchMethodError);
+}
+
+testLibraryReflective() {
+  LibraryMirror lm = reflectClass(D).owner;
+
+  Expect.equals('1 5 6',
+                lm.invoke(#fakeFunctionCall, [5, 6]).reflectee);
+  Expect.equals('7, 8',
+                lm.invoke(#fakeFunctionNSM, [7, 8]).reflectee);
+  Expect.equals('2 9 10',
+                lm.invoke(#closure, [9, 10]).reflectee);
+  Expect.equals('3 11 12 13 null',
+                lm.invoke(#closureOpt, [11, 12, 13]).reflectee);
+  Expect.equals('4 14 15 null 16',
+                lm.invoke(#closureNamed, [14, 15], {#w: 16}).reflectee);
+  Expect.throws(() => lm.invoke(#closure, ['wrong arity']),
+                (e) => e is NoSuchMethodError);
+}
+
+main() {
+  testInstanceBase();
+  testInstanceReflective();
+  testClassBase();
+  testClassReflective();
+  testLibraryBase();
+  testLibraryReflective();
+}
diff --git a/tests/lib/mirrors/list_constructor_test.dart b/tests/lib/mirrors/list_constructor_test.dart
new file mode 100644
index 0000000..c25d038
--- /dev/null
+++ b/tests/lib/mirrors/list_constructor_test.dart
@@ -0,0 +1,31 @@
+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import "package:expect/expect.dart";
+
+import 'dart:mirrors';
+
+main() {
+  var cls = reflectClass(List);
+  Expect.throws(() => cls.newInstance(const Symbol(''), [null]),
+                (e) => e is ArgumentError);
+
+  var list = cls.newInstance(const Symbol(''), [42]).reflectee;
+  // Check that the list is fixed.
+  Expect.equals(42, list.length);
+  Expect.throws(() => list.add(2), (e) => e is UnsupportedError);
+  list[0] = 1;
+  Expect.equals(1, list[0]);
+
+  testGrowableList(); /// 01: ok
+}
+
+testGrowableList() {
+  var cls = reflectClass(List);
+  var list = cls.newInstance(const Symbol(''), []).reflectee;
+  // Check that the list is growable.
+  Expect.equals(0, list.length);
+  list.add(42);
+  Expect.equals(1, list.length);
+}
diff --git a/tests/lib/mirrors/static_members_test.dart b/tests/lib/mirrors/static_members_test.dart
index 0bc9e20..a4551cc 100644
--- a/tests/lib/mirrors/static_members_test.dart
+++ b/tests/lib/mirrors/static_members_test.dart
@@ -16,6 +16,7 @@
 
 main() {
   ClassMirror cm = reflectClass(declarations_model.Class);
+  LibraryMirror lm = cm.owner;
 
   Expect.setEquals(
     [#staticVariable,
@@ -23,17 +24,18 @@
      #staticGetter,
      const Symbol('staticSetter='),
      #staticMethod,
-     #_staticVariable,
-     const Symbol('_staticVariable='),
-     #_staticGetter,
-     const Symbol('_staticSetter='),
-     #_staticMethod],
+     MirrorSystem.getSymbol('_staticVariable', lm),
+     MirrorSystem.getSymbol('_staticVariable=', lm),
+     MirrorSystem.getSymbol('_staticGetter', lm),
+     MirrorSystem.getSymbol('_staticSetter=', lm),
+     MirrorSystem.getSymbol('_staticMethod', lm),
+     ],
     selectKeys(cm.staticMembers, (dm) => true));
 
   Expect.setEquals(
     [#staticVariable,
      const Symbol('staticVariable='),
-     #_staticVariable,
-     const Symbol('_staticVariable=')],
+     MirrorSystem.getSymbol('_staticVariable', lm),
+     MirrorSystem.getSymbol('_staticVariable=', lm)],
     selectKeys(cm.staticMembers, (dm) => dm.isSynthetic));
 }
diff --git a/tests/lib/mirrors/stringify.dart b/tests/lib/mirrors/stringify.dart
index 364bdcf..c848f93 100644
--- a/tests/lib/mirrors/stringify.dart
+++ b/tests/lib/mirrors/stringify.dart
@@ -106,6 +106,7 @@
   var buffer = new StringBuffer();
   writeDeclarationOn(method, buffer);
   if (method.isAbstract) buffer.write(', abstract');
+  if (method.isSynthetic) buffer.write(', synthetic');
   if (method.isStatic) buffer.write(', static');
   if (method.isGetter) buffer.write(', getter');
   if (method.isSetter) buffer.write(', setter');
diff --git a/tests/lib/mirrors/synthetic_accessor_properties_test.dart b/tests/lib/mirrors/synthetic_accessor_properties_test.dart
new file mode 100644
index 0000000..fc96b6d
--- /dev/null
+++ b/tests/lib/mirrors/synthetic_accessor_properties_test.dart
@@ -0,0 +1,104 @@
+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+library test.synthetic_accessor_properties;
+
+import 'dart:mirrors';
+import 'package:expect/expect.dart';
+
+import 'stringify.dart';
+
+class C {
+  String instanceField;
+  final num finalInstanceField = 2;
+
+  static bool staticField;
+  static final int finalStaticField = 4;
+}
+
+String topLevelField;
+final double finalTopLevelField = 6.0;
+
+
+main() {
+  ClassMirror cm = reflectClass(C);
+  LibraryMirror lm = cm.owner;
+  MethodMirror mm;
+  ParameterMirror pm;
+
+  mm = cm.instanceMembers[#instanceField];
+  expect('Method(s(instanceField) in s(C), synthetic, getter)', mm);
+  Expect.equals(reflectClass(String), mm.returnType);
+  Expect.listEquals([], mm.parameters);
+
+  mm = cm.instanceMembers[const Symbol('instanceField=')];
+  expect('Method(s(instanceField=) in s(C), synthetic, setter)', mm);
+  Expect.equals(reflectClass(String), mm.returnType);
+  pm = mm.parameters.single;
+  expect('Parameter(s(instanceField) in s(instanceField=), final,'
+         ' type = Class(s(String) in s(dart.core), top-level))', pm);
+
+  mm = cm.instanceMembers[#finalInstanceField];
+  expect('Method(s(finalInstanceField) in s(C), synthetic, getter)', mm);
+  Expect.equals(reflectClass(num), mm.returnType);
+  Expect.listEquals([], mm.parameters);
+
+  mm = cm.instanceMembers[const Symbol('finalInstanceField=')];
+  Expect.isNull(mm);
+
+
+  mm = cm.staticMembers[#staticField];
+  expect('Method(s(staticField) in s(C), synthetic, static, getter)', mm);
+  Expect.equals(reflectClass(bool), mm.returnType);
+  Expect.listEquals([], mm.parameters);
+
+  mm = cm.staticMembers[const Symbol('staticField=')];
+  expect('Method(s(staticField=) in s(C), synthetic, static, setter)', mm);
+  Expect.equals(reflectClass(bool), mm.returnType);
+  pm = mm.parameters.single;
+  expect('Parameter(s(staticField) in s(staticField=), final,'
+         ' type = Class(s(bool) in s(dart.core), top-level))', pm);
+
+  mm = cm.staticMembers[#finalStaticField];
+  expect('Method(s(finalStaticField) in s(C), synthetic, static, getter)', mm);
+  Expect.equals(reflectClass(int), mm.returnType);
+  Expect.listEquals([], mm.parameters);
+
+  mm = cm.staticMembers[const Symbol('finalStaticField=')];
+  Expect.isNull(mm);
+
+  return;  /// 01: ok
+
+  mm = lm.topLevelMembers[#topLevelField];
+  expect('Method(s(topLevelField) in s(test.synthetic_accessor_properties),'
+         ' top-level, synthetic, static, getter)', mm);
+  Expect.equals(reflectClass(String), mm.returnType);
+  Expect.listEquals([], mm.parameters);
+
+  mm = lm.topLevelMembers[const Symbol('topLevelField=')];
+  expect('Method(s(topLevelField=) in s(test.synthetic_accessor_properties),'
+         ' top-level, synthetic, static, setter)', mm);
+  Expect.equals(reflectClass(String), mm.returnType);
+  pm = mm.parameters.single;
+  expect('Parameter(s(topLevelField) in s(topLevelField=), final,'
+         ' type = Class(s(String) in s(dart.core), top-level))', pm);
+
+  mm = lm.topLevelMembers[#finalTopLevelField];
+  expect('Method(s(finalTopLevelField) in s(test.synthetic_accessor_properties)'
+         ', top-level, synthetic, static, getter)', mm);
+  Expect.equals(reflectClass(double), mm.returnType);
+  Expect.listEquals([], mm.parameters);
+
+  mm = lm.topLevelMembers[const Symbol('finalTopLevelField=')];
+  Expect.isNull(mm);
+
+  mm = lm.topLevelMembers[#C];
+  expect('Method(s(C) in s(test.synthetic_accessor_properties),'
+         ' top-level, synthetic, static, getter)', mm);
+  Expect.equals(reflectClass(Type), mm.returnType);
+  Expect.listEquals([], mm.parameters);
+
+  mm = lm.topLevelMembers[const Symbol('C=')];
+  Expect.isNull(mm);
+}
diff --git a/tests/lib/mirrors/toplevel_members_test.dart b/tests/lib/mirrors/toplevel_members_test.dart
index f79bfc0..1fe613b 100644
--- a/tests/lib/mirrors/toplevel_members_test.dart
+++ b/tests/lib/mirrors/toplevel_members_test.dart
@@ -24,29 +24,31 @@
      #libraryGetter,
      const Symbol('librarySetter='),
      #libraryMethod,
-     #_libraryVariable,
-     const Symbol('_libraryVariable='),
-     #_libraryGetter,
-     const Symbol('_librarySetter='),
-     #_libraryMethod,
+     MirrorSystem.getSymbol('_libraryVariable', lm),
+     MirrorSystem.getSymbol('_libraryVariable=', lm),
+     MirrorSystem.getSymbol('_libraryGetter', lm),
+     MirrorSystem.getSymbol('_librarySetter=', lm),
+     MirrorSystem.getSymbol('_libraryMethod', lm),
      #Predicate,
      #Superclass,
      #Interface,
      #Mixin,
-     #_PrivateClass,
+     #Class,
+     MirrorSystem.getSymbol('_PrivateClass', lm),
      #ConcreteClass],
     selectKeys(lm.topLevelMembers, (dm) => true));
 
   Expect.setEquals(
     [#libraryVariable,
      const Symbol('libraryVariable='),
-     #_libraryVariable,
-     const Symbol('_libraryVariable='),
+     MirrorSystem.getSymbol('_libraryVariable', lm),
+     MirrorSystem.getSymbol('_libraryVariable=', lm),
      #Predicate,
      #Superclass,
      #Interface,
      #Mixin,
-     #_PrivateClass,
+     #Class,
+     MirrorSystem.getSymbol('_PrivateClass', lm),
      #ConcreteClass],
     selectKeys(lm.topLevelMembers, (dm) => dm.isSynthetic));
 }
diff --git a/tests/standalone/io/https_server_test.dart b/tests/standalone/io/https_server_test.dart
index 082950e..559a4d1 100644
--- a/tests/standalone/io/https_server_test.dart
+++ b/tests/standalone/io/https_server_test.dart
@@ -63,7 +63,39 @@
                           password: 'dartdart');
 }
 
+void testEarlyClientClose() {
+  HttpServer.bindSecure(HOST_NAME,
+                        0,
+                        certificateName: 'localhost_cert').then((server) {
+    server.listen(
+      (request) {
+        String name = Platform.script.toFilePath();
+        new File(name).openRead().pipe(request.response)
+            .catchError((e) { /* ignore */ });
+      });
+
+    var count = 0;
+    makeRequest() {
+      Socket.connect(HOST_NAME, server.port).then((socket) {
+        var data = "Invalid TLS handshake";
+        socket.write(data);
+        socket.close();
+        socket.done.then((_) {
+          socket.destroy();
+          if (++count < 10) {
+            makeRequest();
+          } else {
+            server.close();
+          }
+        });
+      });
+    }
+    makeRequest();
+  });
+}
+
 void main() {
   InitializeSSL();
   testListenOn();
+  testEarlyClientClose();
 }
diff --git a/tests/standalone/io/raw_datagram_socket_test.dart b/tests/standalone/io/raw_datagram_socket_test.dart
new file mode 100644
index 0000000..6f3ebef
--- /dev/null
+++ b/tests/standalone/io/raw_datagram_socket_test.dart
@@ -0,0 +1,305 @@
+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import "dart:async";
+import "dart:io";
+import "dart:typed_data";
+
+import "package:async_helper/async_helper.dart";
+import "package:expect/expect.dart";
+
+class FutureExpect {
+  static Future check(Future result, check) =>
+      result.then((value) => check(value));
+  static Future throws(Future result) =>
+      result.then((value) {
+        throw new ExpectException(
+            "FutureExpect.throws received $value instead of an exception");
+        }, onError: (_) => null);
+}
+
+testDatagramBroadcastOptions() {
+  test(address) {
+    asyncStart();
+    RawDatagramSocket.bind(address, 0).then((socket) {
+      Expect.isFalse(socket.broadcastEnabled);
+      socket.broadcastEnabled = true;
+      Expect.isTrue(socket.broadcastEnabled);
+      socket.broadcastEnabled = false;
+      Expect.isFalse(socket.broadcastEnabled);
+      asyncEnd();
+    });
+  }
+
+  test(InternetAddress.LOOPBACK_IP_V4);
+  test(InternetAddress.ANY_IP_V4);
+}
+
+testDatagramMulticastOptions() {
+  test(address) {
+    asyncStart();
+    RawDatagramSocket.bind(address, 0).then((socket) {
+      Expect.isTrue(socket.multicastLoopback);
+      Expect.equals(1, socket.multicastHops);
+      Expect.throws(() => socket.multicastInterface);
+
+      socket.multicastLoopback = false;
+      socket.multicastHops = 4;
+      Expect.isFalse(socket.multicastLoopback);
+      Expect.equals(4, socket.multicastHops);
+      Expect.throws(() => socket.multicastInterface = null);
+
+      socket.multicastLoopback = true;
+      socket.multicastHops = 1;
+      Expect.isTrue(socket.multicastLoopback);
+      Expect.equals(1, socket.multicastHops);
+      Expect.throws(() => socket.multicastInterface);
+
+      asyncEnd();
+    });
+  }
+
+  test(InternetAddress.LOOPBACK_IP_V4);
+  test(InternetAddress.ANY_IP_V4);
+  test(InternetAddress.LOOPBACK_IP_V6);
+  test(InternetAddress.ANY_IP_V6);
+}
+
+testDatagramSocketReuseAddress() {
+  test(address, reuseAddress) {
+    asyncStart();
+    RawDatagramSocket.bind(
+        address, 0, reuseAddress: reuseAddress).then((socket) {
+            if (reuseAddress) {
+              RawDatagramSocket.bind(address, socket.port)
+                  .then((s) => Expect.isTrue(s is RawDatagramSocket))
+                  .then(asyncSuccess);
+            } else {
+              FutureExpect.throws(RawDatagramSocket.bind(address, socket.port))
+                  .then(asyncSuccess);
+            }
+    });
+  }
+
+  test(InternetAddress.LOOPBACK_IP_V4, true);
+  test(InternetAddress.LOOPBACK_IP_V4, false);
+  test(InternetAddress.LOOPBACK_IP_V6, true);
+  test(InternetAddress.LOOPBACK_IP_V6, false);
+}
+
+testBroadcast() {
+  test(bindAddress, broadcastAddress, enabled) {
+    asyncStart();
+    Future.wait([RawDatagramSocket.bind(bindAddress, 0),
+                 RawDatagramSocket.bind(bindAddress, 0)]).then((values) {
+      var broadcastTimer;
+      var sender = values[0];
+      var receiver = values[1];
+      // On Windows at least the receiver needs to have broadcast
+      // enabled whereas on Linux at least the sender needs to.
+      receiver.broadcastEnabled = enabled;
+      sender.broadcastEnabled = enabled;
+      receiver.listen((event) {
+        if (event == RawSocketEvent.READ) {
+          Expect.isTrue(enabled);
+          sender.close();
+          receiver.close();
+          broadcastTimer.cancel();
+          asyncEnd();
+        }
+      });
+
+      int sendCount = 0;
+      send(_) {
+        int bytes =
+            sender.send(new Uint8List(1), broadcastAddress, receiver.port);
+        Expect.isTrue(bytes == 0 || bytes == 1);
+        sendCount++;
+        if (!enabled && sendCount == 50) {
+          sender.close();
+          receiver.close();
+          broadcastTimer.cancel();
+          asyncEnd();
+        }
+      }
+      broadcastTimer = new Timer.periodic(new Duration(milliseconds: 10), send);
+    });
+  }
+
+  var broadcast = new InternetAddress("255.255.255.255");
+  test(InternetAddress.ANY_IP_V4, broadcast, false);
+  test(InternetAddress.ANY_IP_V4, broadcast, true);
+}
+
+testLoopbackMulticast() {
+  test(bindAddress, multicastAddress, enabled) {
+    asyncStart();
+    Future.wait([RawDatagramSocket.bind(bindAddress, 0),
+                 RawDatagramSocket.bind(bindAddress, 0)]).then((values) {
+      var senderTimer;
+      var sender = values[0];
+      var receiver = values[1];
+
+      sender.joinMulticast(multicastAddress);
+      receiver.joinMulticast(multicastAddress);
+      // On Windows at least the receiver needs to have multicast
+      // loop enabled whereas on Linux at least the sender needs to.
+      receiver.multicastLoopback = enabled;
+      sender.multicastLoopback = enabled;
+
+      receiver.listen((event) {
+        if (event == RawSocketEvent.READ) {
+          Expect.isTrue(enabled);
+          sender.close();
+          receiver.close();
+          senderTimer.cancel();
+          asyncEnd();
+        }
+      });
+
+      int sendCount = 0;
+      send(_) {
+        int bytes =
+            sender.send(new Uint8List(1), multicastAddress, receiver.port);
+        Expect.isTrue(bytes == 0 || bytes == 1);
+        sendCount++;
+        if (!enabled && sendCount == 50) {
+          sender.close();
+          receiver.close();
+          senderTimer.cancel();
+          asyncEnd();
+        }
+      }
+      senderTimer = new Timer.periodic(new Duration(milliseconds: 10), send);
+    });
+  }
+
+  test(InternetAddress.ANY_IP_V4, new InternetAddress("228.0.0.4"), true);
+  test(InternetAddress.ANY_IP_V4, new InternetAddress("224.0.0.0"), false);
+  test(InternetAddress.ANY_IP_V6, new InternetAddress("ff11::0"), true);
+  test(InternetAddress.ANY_IP_V6, new InternetAddress("ff11::0"), false);
+}
+
+testSendReceive(InternetAddress bindAddress) {
+  asyncStart();
+
+  var total = 1000;
+
+  int receivedSeq = 0;
+
+  var ackSeq = 0;
+  Timer ackTimer;
+
+  Future.wait([RawDatagramSocket.bind(bindAddress, 0),
+               RawDatagramSocket.bind(bindAddress, 0)]).then((values) {
+  var sender = values[0];
+  var receiver = values[1];
+  if (bindAddress.isMulticast) {
+    sender.multicastLoopback = true;
+    receiver.multicastLoopback = true;
+    sender.joinMulticast(bindAddress);
+    receiver.joinMulticast(bindAddress);
+  }
+
+  Uint8List createDataPackage(int seq) {
+    var data = new Uint8List(1000);
+    (new ByteData.view(data.buffer, 0, 4)).setUint32(0, seq);
+    return data;
+  }
+
+  Uint8List createAckPackage(int seq) {
+    var data = new Uint8List(4);
+    new ByteData.view(data.buffer, 0, 4).setUint32(0, seq);
+    return data;
+  }
+
+  int packageSeq(Datagram datagram) =>
+      new ByteData.view((datagram.data as Uint8List).buffer).getUint32(0);
+
+  void sendData(int seq) {
+    // Send a datagram acknowledging the received sequence.
+    int bytes = sender.send(createDataPackage(seq), bindAddress, receiver.port);
+    Expect.isTrue(bytes == 0 || bytes == 1000);
+  }
+
+  void sendAck(address, port) {
+    // Send a datagram acknowledging the received sequence.
+    int bytes = receiver.send(createAckPackage(receivedSeq), address, port);
+    Expect.isTrue(bytes == 0 || bytes == 4);
+    // Start a "long" timer for more data.
+    if (ackTimer != null) ackTimer.cancel();
+    ackTimer = new Timer.periodic(
+        new Duration(milliseconds: 100), (_) => sendAck(address, port));
+  }
+
+  sender.listen((event) {
+    switch (event) {
+      case RawSocketEvent.READ:
+        var datagram = sender.receive();
+        if (datagram != null) {
+          Expect.equals(datagram.port, receiver.port);
+          if (!bindAddress.isMulticast) {
+            Expect.equals(receiver.address, datagram.address);
+          }
+          ackSeq = packageSeq(datagram);
+          if (ackSeq < total) {
+            sender.writeEventsEnabled = true;
+          } else {
+            sender.close();
+            receiver.close();
+            ackTimer.cancel();
+            asyncEnd();
+          }
+        }
+        break;
+      case RawSocketEvent.WRITE:
+        // Send the next package.
+        sendData(ackSeq + 1);
+        break;
+      case RawSocketEvent.CLOSED:
+        break;
+      default:
+        throw "Unexpected event $event";
+    }
+  });
+
+  receiver.writeEventsEnabled = false;
+  receiver.listen((event) {
+    switch (event) {
+      case RawSocketEvent.READ:
+        var datagram = receiver.receive();
+        if (datagram != null) {
+          Expect.equals(datagram.port, sender.port);
+          if (!bindAddress.isMulticast) {
+            Expect.equals(receiver.address, datagram.address);
+          }
+          var seq = packageSeq(datagram);
+          if (seq == receivedSeq + 1) {
+            receivedSeq = seq;
+            sendAck(bindAddress, sender.port);
+          }
+        }
+        break;
+      case RawSocketEvent.WRITE:
+        throw "Unexpected WRITE";
+        break;
+      case RawSocketEvent.CLOSED:
+        break;
+      default:
+        throw "Unexpected event $event";
+    }
+  });
+  });
+}
+
+
+main() {
+  testDatagramBroadcastOptions();
+  testDatagramMulticastOptions();
+  testDatagramSocketReuseAddress();
+  testBroadcast();
+  testLoopbackMulticast();
+  testSendReceive(InternetAddress.LOOPBACK_IP_V4);
+  testSendReceive(InternetAddress.LOOPBACK_IP_V6);
+}
diff --git a/tests/standalone/io/stdin_sync_test.dart b/tests/standalone/io/stdin_sync_test.dart
index 63e4f1d..03e794c 100644
--- a/tests/standalone/io/stdin_sync_test.dart
+++ b/tests/standalone/io/stdin_sync_test.dart
@@ -6,6 +6,7 @@
 import "dart:io";
 
 import "package:path/path.dart";
+import "package:expect/expect.dart";
 
 void testReadByte() {
   void test(String line, List<String> expected) {
@@ -44,7 +45,10 @@
 }
 
 void testEchoMode() {
+  stdin.echoMode = true;
+  Expect.isTrue(stdin.echoMode);
   stdin.echoMode = false;
+  Expect.isFalse(stdin.echoMode);
   var line;
   while ((line = stdin.readLineSync()) != null) {
     print("You typed: $line");
@@ -52,7 +56,10 @@
 }
 
 void testLineMode() {
+  stdin.lineMode = true;
+  Expect.isTrue(stdin.lineMode);
   stdin.lineMode = false;
+  Expect.isFalse(stdin.lineMode);
   var char;
   while ((char = stdin.readByteSync()) != -1) {
     print("You typed: $char");
diff --git a/tests/standalone/standalone.status b/tests/standalone/standalone.status
index 570c988..fcab8b1 100644
--- a/tests/standalone/standalone.status
+++ b/tests/standalone/standalone.status
@@ -9,7 +9,7 @@
 
 package/invalid_uri_test: Fail, OK # CompileTimeErrors intentionally
 
-issue14236_test: Pass, Fail, Crash # Issue 14516.
+issue14236_test: Crash # Issue 14516.
 
 [ $runtime == vm ]
 package/package_isolate_test: Fail # Issue 12474
@@ -31,17 +31,9 @@
 # This is expected as MacOS by default runs with a very low number
 # of allowed open files ('ulimit -n' says something like 256).
 io/socket_many_connections_test: Skip
-
-# These tests pass on MacOS 10.8.2 but fails on the buildbot machines
-# that are running an earlier version of MacOS. The issue is that the
-# old version of MacOS does not expand the precomposed utf-8 it gets
-# from the VM before comparing it to the decomposed utf-8 used for the
-# file system.
-io/file_non_ascii_sync_test: Pass, Fail
-io/file_non_ascii_test: Pass, Fail
-io/directory_non_ascii_sync_test: Pass, Fail
-io/directory_non_ascii_test: Pass, Fail
-io/process_non_ascii_test: Pass, Fail
+# The UDP tests are currently skipped on Mac OS as multicast configuration
+# needs to be resolved.
+io/raw_datagram_socket_test: Skip # Issue 1975
 
 [ $compiler == none && ($runtime == drt || $runtime == dartium) ]
 typed_array_test: Fail # Issue 13921
@@ -117,13 +109,8 @@
 [ $arch == simarm ]
 out_of_memory_test: Skip # passes on Mac, crashes on Linux
 oom_error_stacktrace_test: Skip # Fails on Linux
-io/test_runner_test: Pass, Fail # Issue 12413
-
-[ $arch == simmips ]
-io/test_runner_test: Pass, Fail # Issue 12413
 
 [ $arch == simmips || $arch == mips ]
-io/file_fuzz_test: Pass, Timeout
 io/web_socket_test: Pass, Slow
 io/http_server_response_test: Pass, Slow
 out_of_memory_test: Skip # passes on Mac, crashes on Linux
diff --git a/tests/standalone/vmservice/unknown_command_test.dart b/tests/standalone/vmservice/unknown_command_test.dart
index 2ab54f8..1c503a6 100644
--- a/tests/standalone/vmservice/unknown_command_test.dart
+++ b/tests/standalone/vmservice/unknown_command_test.dart
@@ -11,7 +11,7 @@
   UnknownCommandTest(port) : super('http://127.0.0.1:$port/badcommand');
 
   onRequestCompleted(Map reply) {
-    Expect.equals('error', reply['type']);
+    Expect.equals('Error', reply['type']);
   }
 }
 
diff --git a/tests/utils/dummy_compiler_test.dart b/tests/utils/dummy_compiler_test.dart
index c9a30bc..2c3e81c 100644
--- a/tests/utils/dummy_compiler_test.dart
+++ b/tests/utils/dummy_compiler_test.dart
@@ -44,7 +44,8 @@
 getRuntimeTypeInfo(o) {}
 setRuntimeTypeInfo(o, i) {}
 eqNull(a) {}
-eqNullB(a) {}""";
+eqNullB(a) {}
+const proxy = 0;""";
     } else if (uri.path.endsWith('_patch.dart')) {
       source = '';
     } else if (uri.path.endsWith('interceptors.dart')) {
diff --git a/tests/utils/recursive_import_test.dart b/tests/utils/recursive_import_test.dart
index 2c5cb00..64bfee0 100644
--- a/tests/utils/recursive_import_test.dart
+++ b/tests/utils/recursive_import_test.dart
@@ -12,7 +12,7 @@
 const CORE_LIB = """
 library core;
 class Object {
-  Object();
+  const Object();
   operator==(other) {}
 }
 class bool {}
@@ -35,6 +35,8 @@
 eqNull(a) {}
 eqNullB(a) {}
 class JSInvocationMirror {}  // Should be in helper.
+class _Proxy { const _Proxy(); }
+const proxy = const _Proxy();
 """;
 
 const INTERCEPTORS_LIB = """
diff --git a/tools/VERSION b/tools/VERSION
index 0795e2b..575e350 100644
--- a/tools/VERSION
+++ b/tools/VERSION
@@ -1,5 +1,31 @@
+# This file is used by tools/utils.py to generate version strings.
+# The numbers are changed as follows:
+#
+#  * New release cycle has begun (i.e. stable release was just made):
+#     - increase MINOR by 1
+#     - set "PATCH 0"
+#     - set "PRERELEASE 0"
+#     - set "PRERELEASE_PATCH 0"
+#
+#  * Doing a push-to-trunk from bleeding_edge:
+#    (The first push-to-trunk in the release cycle will set PRERELEASE to 1)
+#     - increase PRERELEASE by 1
+#     - set "PRERELEASE_PATCH 0"
+#
+#  * Doing a cherry-pick to trunk:
+#     - increase PRERELEASE_PATCH by 1
+#
+#  * Making a stable release (i.e. new stable branch):
+#     - set "PRERELEASE 0"
+#     - set "PRERELEASE_PATCH 0"
+#    The new stable release version will sort higher than the prereleases.
+#
+#  * Making cherry-picks to stable channel
+#     - increase PATCH by 1
+#
 CHANNEL dev
 MAJOR 1
-MINOR 0
-BUILD 3
+MINOR 1
 PATCH 0
+PRERELEASE 4
+PRERELEASE_PATCH 0
diff --git a/tools/bots/bot.py b/tools/bots/bot.py
index f9fcd0d..53af19d3 100644
--- a/tools/bots/bot.py
+++ b/tools/bots/bot.py
@@ -38,11 +38,13 @@
   - test_set: Specification of a non standard test set or None.
   - csp: This is using csp when running
   - arch: The architecture to build on.
+  - dart2js_full: Boolean indicating whether this builder will run dart2js
+    on several different runtimes.
   """
   def __init__(self, compiler, runtime, mode, system, checked=False,
                host_checked=False, minified=False, shard_index=None,
                total_shards=None, is_buildbot=False, test_set=None,
-               csp=None, arch=None):
+               csp=None, arch=None, dart2js_full=False):
     self.compiler = compiler
     self.runtime = runtime
     self.mode = mode
@@ -55,6 +57,7 @@
     self.is_buildbot = is_buildbot
     self.test_set = test_set
     self.csp = csp
+    self.dart2js_full = dart2js_full
     if (arch == None):
       self.arch = 'ia32'
     else:
diff --git a/tools/bots/compiler.py b/tools/bots/compiler.py
index f54685e..7087a31 100644
--- a/tools/bots/compiler.py
+++ b/tools/bots/compiler.py
@@ -23,9 +23,19 @@
 DARTIUM_BUILDER = r'none-dartium-(linux|mac|windows)'
 DART2JS_BUILDER = (
     r'dart2js-(linux|mac|windows)(-(jsshell))?-(debug|release)(-(checked|host-checked))?(-(host-checked))?(-(minified))?(-(x64))?-?(\d*)-?(\d*)')
+DART2JS_FULL_BUILDER = r'dart2js-full-(linux|mac|windows)(-checked)?(-minified)?-(\d+)-(\d+)'
 WEB_BUILDER = (
     r'dart2js-(ie9|ie10|ff|safari|chrome|chromeOnAndroid|opera|drt)-(win7|win8|mac10\.8|mac10\.7|linux)(-(all|html))?(-(csp))?(-(\d+)-(\d+))?')
 
+DART2JS_FULL_CONFIGURATIONS = {
+  'linux' : [ ],
+  'mac' : [ ],
+  'windows' : [
+    {'runtime' : 'ie9'},
+    {'runtime' : 'ie9', 'additional_flags' : ['--checked']},
+  ],
+}
+
 
 def GetBuildInfo(builder_name, is_buildbot):
   """Returns a BuildInfo object for the current buildbot based on the
@@ -43,8 +53,10 @@
   test_set = None
   csp = None
   arch = None
+  dart2js_full = False
 
   dart2js_pattern = re.match(DART2JS_BUILDER, builder_name)
+  dart2js_full_pattern = re.match(DART2JS_FULL_BUILDER, builder_name)
   web_pattern = re.match(WEB_BUILDER, builder_name)
   dartium_pattern = re.match(DARTIUM_BUILDER, builder_name)
 
@@ -58,6 +70,17 @@
       csp = True
     shard_index = web_pattern.group(8)
     total_shards = web_pattern.group(9)
+  elif dart2js_full_pattern:
+    mode = 'release'
+    compiler = 'dart2js'
+    dart2js_full = True
+    system = dart2js_full_pattern.group(1)
+    if dart2js_full_pattern.group(2):
+      checked = True
+    if dart2js_full_pattern.group(3):
+      minified = True
+    shard_index = dart2js_full_pattern.group(4)
+    total_shards = dart2js_full_pattern.group(5)
   elif dart2js_pattern:
     compiler = 'dart2js'
     system = dart2js_pattern.group(1)
@@ -107,7 +130,7 @@
     return None
   return bot.BuildInfo(compiler, runtime, mode, system, checked, host_checked,
                        minified, shard_index, total_shards, is_buildbot,
-                       test_set, csp, arch)
+                       test_set, csp, arch, dart2js_full)
 
 
 def NeedsXterm(compiler, runtime):
@@ -170,8 +193,8 @@
     bot.RunProcess(cmd)
 
 
-def TestCompiler(runtime, mode, system, flags, is_buildbot, test_set, arch,
-                 compiler=None):
+def TestCompiler(runtime, mode, system, flags, is_buildbot, arch,
+                 compiler=None, dart2js_full=False):
   """ test the compiler.
    Args:
      - runtime: either 'd8', 'jsshell', or one of the browsers, see GetBuildInfo
@@ -180,7 +203,6 @@
      - flags: extra flags to pass to test.dart
      - is_buildbot: true if we are running on a real buildbot instead of
        emulating one.
-     - test_set: Specification of a non standard test set, default None
      - arch: The architecture to run on.
      - compiler: The compiler to use for test.py (default is 'dart2js').
   """
@@ -298,31 +320,40 @@
   if build_info.shard_index:
     test_flags = ['--shards=%s' % build_info.total_shards,
                   '--shard=%s' % build_info.shard_index]
-
   if build_info.checked: test_flags += ['--checked']
-
+  if build_info.minified: test_flags += ['--minified']
   if build_info.host_checked: test_flags += ['--host-checked']
 
-  if build_info.minified: test_flags += ['--minified']
+  if build_info.dart2js_full:
+    compiler = build_info.compiler
+    assert compiler == 'dart2js'
+    system = build_info.system
+    arch = build_info.arch
+    mode = build_info.mode
+    is_buildbot = build_info.is_buildbot
+    for configuration in DART2JS_FULL_CONFIGURATIONS[system]:
+      additional_flags = configuration.get('additional_flags', [])
+      TestCompiler(configuration['runtime'], mode, system,
+                   test_flags + additional_flags, is_buildbot, arch,
+                   compiler=compiler, dart2js_full=True)
+  else:
+    if build_info.csp: test_flags += ['--csp']
 
-  if build_info.csp: test_flags += ['--csp']
+    if build_info.runtime == 'chromeOnAndroid':
+      test_flags.append('--local_ip=%s' % GetLocalIPAddress())
+      # test.py expects the android tools directories to be in PATH
+      # (they contain for example 'adb')
+      AddAndroidToolsToPath()
 
-  if build_info.runtime == 'chromeOnAndroid':
-    test_flags.append('--local_ip=%s' % GetLocalIPAddress())
-    # test.py expects the android tools directories to be in PATH
-    # (they contain for example 'adb')
-    AddAndroidToolsToPath()
-
-  TestCompiler(build_info.runtime, build_info.mode, build_info.system,
-               list(test_flags), build_info.is_buildbot, build_info.test_set,
-               build_info.arch, compiler=build_info.compiler)
-
-  # See comment in GetHasHardCodedCheckedMode, this is a hack.
-  if (GetHasHardCodedCheckedMode(build_info)):
     TestCompiler(build_info.runtime, build_info.mode, build_info.system,
-                 test_flags + ['--checked'], build_info.is_buildbot,
-                 build_info.test_set, build_info.arch,
-                 compiler=build_info.compiler)
+                 list(test_flags), build_info.is_buildbot,
+                 build_info.arch, compiler=build_info.compiler)
+
+    # See comment in GetHasHardCodedCheckedMode, this is a hack.
+    if (GetHasHardCodedCheckedMode(build_info)):
+      TestCompiler(build_info.runtime, build_info.mode, build_info.system,
+                   test_flags + ['--checked'], build_info.is_buildbot,
+                   build_info.arch,  compiler=build_info.compiler)
 
 
 def BuildCompiler(build_info):
@@ -332,7 +363,7 @@
   - build_info: the buildInfo object, containing information about what sort of
       build and test to be run.
   """
-  with bot.BuildStep('Build SDK and d8'):
+  with bot.BuildStep('Build SDK'):
     args = [sys.executable, './tools/build.py', '--mode=' + build_info.mode,
             '--arch=' + build_info.arch, 'dart2js_bot']
     print 'Build SDK and d8: %s' % (' '.join(args))
diff --git a/tools/create_editor.py b/tools/create_editor.py
index 086c119..ba4f4fa5 100644
--- a/tools/create_editor.py
+++ b/tools/create_editor.py
@@ -187,14 +187,15 @@
       join('third_party', 'bzip2', 'bzip2.jar'),
       '-Dbuild.out=' + OUTPUT,
       '-Dbuild.configs=' + buildConfig,
-      '-Dbuild.revision=' + utils.GetSVNRevision(),
-      '-Ddart.version.full=' + utils.GetVersion(),
       '-Dbuild.root=' + GetEclipseBuildRoot(),
       '-Dbuild.downloads=' + GetDownloadCache(),
       '-Dbuild.source=' + os.path.abspath('editor'),
       '-Dbuild.dart.sdk=' + GetSdkPath(),
       '-Dbuild.no.properties=true',
       '-Dbuild.channel=' + utils.GetChannel(),
+      '-Dbuild.revision=' + utils.GetSVNRevision(),
+      '-Dbuild.version.qualifier=' + utils.GetEclipseVersionQualifier(),
+      '-Ddart.version.full=' + utils.GetVersion(),
       '-buildfile',
       buildScript]
   print build_cmd
diff --git a/tools/create_windows_installer.py b/tools/create_windows_installer.py
index 6566a5b..04df575 100644
--- a/tools/create_windows_installer.py
+++ b/tools/create_windows_installer.py
@@ -83,24 +83,29 @@
 # In addition to that, the limits on the size are:

 # Major: 256

 # Minor: 256

-# Build: 65536

+# Patch: 65536

 # To circumvent this we create the version like this:

 #   Major.Minor.X

-# where X is Build<<9 + Patch

-# Example version 1.2.4.14 will go to 1.2.2062

+# from "major.minor.patch-prerelease.prerelease_patch"

+# where X is "patch<<10 + prerelease<<5 + prerelease_patch"

+# Example version 1.2.4-dev.2.3 will go to 1.2.4163

 def GetMicrosoftProductVersion(version):

   version_parts = version.split('.')

-  if len(version_parts) is not 4:

+  if len(version_parts) is not 5:

     raise Exception(

       "Version string (%s) does not follow specification" % version)

-  (major, minor, build, patch) = map(int, version_parts)

+  (major, minor, patch, prerelease, prerelease_patch) = map(int, version_parts)

 

-  if build > 127 or patch > 511:

-    raise Exception('Build/Patch can not be above 127/511')

   if major > 255 or minor > 255:

     raise Exception('Major/Minor can not be above 256')

+  if patch > 63:

+    raise Exception('Patch can not be above 63')

+  if prerelease > 31:

+    raise Exception('Prerelease can not be above 31')

+  if prerelease_patch > 31:

+    raise Exception('PrereleasePatch can not be above 31')

 

-  combined = (build << 9) + patch

+  combined = (patch << 10) + (prerelease << 5) + prerelease_patch

   return '%s.%s.%s' % (major, minor, combined)

 

 # Append using the current indentation level

diff --git a/tools/ddbg.dart b/tools/ddbg.dart
index 918218f..7e53ab6 100644
--- a/tools/ddbg.dart
+++ b/tools/ddbg.dart
@@ -12,6 +12,18 @@
 
 import "ddbg/lib/commando.dart";
 
+class TargetScript {
+  // The text of a script.
+  String source = null;
+
+  // A mapping from line number to source text.
+  List<String> lineToSource = null;
+
+  // A mapping from token offset to line number.
+  Map<int,int> tokenToLine = null;
+}
+
+
 class TargetIsolate {
   int id;
   // The location of the last paused event.
@@ -19,6 +31,8 @@
 
   TargetIsolate(this.id);
   bool get isPaused => pausedLocation != null;
+
+  Map<String, TargetScript> scripts = {};
 }
 
 Map<int, TargetIsolate> targetIsolates= new Map<int, TargetIsolate>();
@@ -85,9 +99,13 @@
 // The current values for all settings.
 var settings = new Map();
 
-// Generates a string of 'count' spaces.
-String _spaces(int count) {
-  return new List.filled(count, ' ').join('');
+String _leftJustify(text, int width) {
+  StringBuffer buffer = new StringBuffer();
+  buffer.write(text);
+  while (buffer.length < width) {
+    buffer.write(' ');
+  }
+  return buffer.toString();
 }
 
 // TODO(turnidge): Move all commands here.
@@ -102,7 +120,7 @@
       new ShowCommand() ];
 
 
-Command matchCommand(String commandName, bool exactMatchWins) {
+List<Command> matchCommand(String commandName, bool exactMatchWins) {
   List matches = [];
   for (var command in commandList) {
     if (command.name.startsWith(commandName)) {
@@ -138,9 +156,7 @@
     if (args.length == 1) {
       print("Debugger commands:\n");
       for (var command in commandList) {
-        const tabStop = 12;
-        var spaces = _spaces(max(1, (tabStop - command.name.length)));
-        print('  ${command.name}${spaces}${command.helpShort}');
+        print('  ${_leftJustify(command.name, 11)} ${command.helpShort}');
       }
 
       // TODO(turnidge): Convert all commands to use the Command class.
@@ -336,7 +352,7 @@
 
     isDebugging = true;
     cmdo.hide();
-    return Process.start(vm, processArgs).then((Process process) {
+    return Process.start(vm, processArgs).then((process) {
         print("Started process ${process.pid} '$vm ${processArgs.join(' ')}'");
         targetProcess = process;
         process.stdin.close();
@@ -494,7 +510,6 @@
 }
 
 void processCommand(String cmdLine) {
-  
   void huh() {
     print("'$cmdLine' not understood, try 'help' for help.");
   }
@@ -909,7 +924,7 @@
 void printStackFrame(frame_num, Map frame) {
   var fname = frame["functionName"];
   var loc = formatLocation(frame["location"]);
-  print("$frame_num  $fname ($loc)");
+  print("#${_leftJustify(frame_num,2)} $fname at $loc");
   List locals = frame["locals"];
   for (int i = 0; i < locals.length; i++) {
     printNamedObject(locals[i]);
@@ -924,7 +939,85 @@
 }
 
 
-void handlePausedEvent(msg) {
+Map<int, int> parseLineNumberTable(List<List<int>> table) {
+  Map tokenToLine = {};
+  for (var line in table) {
+    // Each entry begins with a line number...
+    var lineNumber = line[0];
+    for (var pos = 1; pos < line.length; pos += 2) {
+      // ...and is followed by (token offset, col number) pairs.
+      // We ignore the column numbers.
+      var tokenOffset = line[pos];
+      tokenToLine[tokenOffset] = lineNumber;
+    }
+  }
+  return tokenToLine;
+}
+
+
+Future<TargetScript> getTargetScript(Map location) {
+  var isolate = targetIsolates[currentIsolate.id];
+  var url = location['url'];
+  var script = isolate.scripts[url];
+  if (script != null) {
+    return new Future.value(script);
+  }
+  script = new TargetScript();
+
+  // Ask the vm for the source and line number table.
+  var sourceCmd = {
+    "id": seqNum++,
+    "command":  "getScriptSource",
+    "params": { "isolateId": currentIsolate.id,
+                "libraryId": location['libraryId'],
+                "url": url } };
+
+  var lineNumberCmd = {
+    "id": seqNum++,
+    "command":  "getLineNumberTable",
+    "params": { "isolateId": currentIsolate.id,
+                "libraryId": location['libraryId'],
+                "url": url } };
+
+  // Send the source command
+  var sourceResponse = sendCmd(sourceCmd).then((response) {
+      Map result = response["result"];
+      script.source = result['text'];
+      // Line numbers are 1-based so add a dummy for line 0.
+      script.lineToSource = [''];
+      script.lineToSource.addAll(script.source.split('\n'));
+    });
+
+  // Send the line numbers command
+  var lineNumberResponse = sendCmd(lineNumberCmd).then((response) {
+      Map result = response["result"];
+      script.tokenToLine = parseLineNumberTable(result['lines']);
+    });
+
+  return Future.wait([sourceResponse, lineNumberResponse]).then((_) {
+      // When both commands complete, cache the result.
+      isolate.scripts[url] = script;
+      return script;
+    });
+}
+
+
+Future printLocation(String label, Map location) {
+  // Figure out the line number.
+  return getTargetScript(location).then((script) {
+      var lineNumber = script.tokenToLine[location['tokenOffset']];
+      var text = script.lineToSource[lineNumber];
+      if (label != null) {
+        var fileName = location['url'].split("/").last;
+        print("$label \n"
+              "    at $fileName:$lineNumber");
+      }
+      print("${_leftJustify(lineNumber, 8)}$text");
+    });
+}
+
+
+Future handlePausedEvent(msg) {
   assert(msg["params"] != null);
   var reason = msg["params"]["reason"];
   int isolateId = msg["params"]["isolateId"];
@@ -936,16 +1029,17 @@
   assert(location != null);
   isolate.pausedLocation = location;
   if (reason == "breakpoint") {
-    print("Isolate $isolateId paused on breakpoint");
-    print("location: ${formatLocation(location)}");
+    var bpId = (msg["params"]["breakpointId"]);
+    var label = (bpId != null) ? "Breakpoint $bpId" : null;
+    return printLocation(label, location);
   } else if (reason == "interrupted") {
-    print("Isolate $isolateId paused due to an interrupt");
-    print("location: ${formatLocation(location)}");
+    return printLocation("Interrupted", location);
   } else {
     assert(reason == "exception");
     var excObj = msg["params"]["exception"];
     print("Isolate $isolateId paused on exception");
     print(remoteObject(excObj));
+    return new Future.value();
   }
 }
 
@@ -1001,8 +1095,9 @@
   }
   if (event == "paused") {
     cmdo.hide();
-    handlePausedEvent(msg);
-    cmdo.show();
+    handlePausedEvent(msg).then((_) {
+        cmdo.show();
+      });
     return;
   }
   if (event == "breakpointResolved") {
@@ -1011,7 +1106,7 @@
     var isolateId = params["isolateId"];
     var location = formatLocation(params["location"]);
     cmdo.hide();
-    print("BP ${params["breakpointId"]} resolved in isolate $isolateId"
+    print("Breakpoint ${params["breakpointId"]} resolved in isolate $isolateId"
           " at $location.");
     cmdo.show();
     return;
@@ -1042,7 +1137,7 @@
   }
   if (i >= vmData.length) {
     return false;
-  } else { 
+  } else {
     return char != "{";
   }
 }
@@ -1230,7 +1325,6 @@
     print('Timed out waiting for debugger to start.\nError: $e');
     return closeVmSocket();
   }
-      
   // Wait and retry.
   return new Future.delayed(delay, () {
       openVmSocket(attempt + 1);
@@ -1263,10 +1357,15 @@
   vmSubscription = null;
   vmSock = null;
   outstandingCommands = null;
-  
   return Future.wait(cleanupFutures);
 }
 
+void debuggerError(self, parent, zone, error, StackTrace trace) {
+  print('\n--------\nExiting due to unexpected error:\n'
+        '  $error\n$trace\n');
+  debuggerQuit();
+}
+
 Future debuggerQuit() {
   // Kill target process, if any.
   if (targetProcess != null) {
@@ -1299,10 +1398,16 @@
 }
 
 void main(List<String> args) {
-  parseArgs(args);
+  // Setup a zone which will exit the debugger cleanly on any uncaught
+  // exception.
+  var zone = Zone.ROOT.fork(specification:new ZoneSpecification(
+      handleUncaughtError: debuggerError));
 
-  cmdo = new Commando(completer: debuggerCommandCompleter);
-  cmdSubscription = cmdo.commands.listen(processCommand,
-                                         onError: processError,
-                                         onDone: processDone);
+  zone.run(() {
+      parseArgs(args);
+      cmdo = new Commando(completer: debuggerCommandCompleter);
+      cmdSubscription = cmdo.commands.listen(processCommand,
+                                             onError: processError,
+                                             onDone: processDone);
+    });
 }
diff --git a/tools/dom/scripts/htmlrenamer.py b/tools/dom/scripts/htmlrenamer.py
index 125dbc8..077a3a1 100644
--- a/tools/dom/scripts/htmlrenamer.py
+++ b/tools/dom/scripts/htmlrenamer.py
@@ -332,6 +332,10 @@
   'Window.getComputedStyle',
   'Window.clearInterval',
   'Window.clearTimeout',
+  'WindowTimers.clearInterval',
+  'WindowTimers.clearTimeout',
+  'WindowTimers.setInterval',
+  'WindowTimers.setTimeout',
   'Window.moveTo',
   'Window.requestAnimationFrame',
   'Window.setInterval',
diff --git a/tools/dom/scripts/systemhtml.py b/tools/dom/scripts/systemhtml.py
index 833fb23..ab790a1 100644
--- a/tools/dom/scripts/systemhtml.py
+++ b/tools/dom/scripts/systemhtml.py
@@ -1081,7 +1081,7 @@
         '\n'
         '  $TYPE $NAME($PARAMS);\n',
         TYPE=self.SecureOutputType(info.type_name, False, True),
-        NAME=info.name,
+        NAME=html_name,
         PARAMS=info.ParametersDeclaration(self._NarrowInputType))
 
 
diff --git a/tools/dom/scripts/systemnative.py b/tools/dom/scripts/systemnative.py
index fdc48bd..6871269 100644
--- a/tools/dom/scripts/systemnative.py
+++ b/tools/dom/scripts/systemnative.py
@@ -423,10 +423,10 @@
         '            return Dart_Null();\n'
         '        DartDOMData* domData = DartDOMData::current();\n'
         '        Dart_WeakPersistentHandle result =\n'
-        '            DartDOMWrapper::lookupWrapper(domData, isNode, value);\n'
+        '            DartDOMWrapper::lookupWrapper<Dart$(INTERFACE)>(domData, value);\n'
         '        if (result)\n'
         '            return Dart_HandleFromWeakPersistent(result);\n'
-        '        return createWrapper(value);\n'
+        '        return createWrapper(domData, value);\n'
         '    }\n'
         '    static void returnToDart(Dart_NativeArguments args,\n'
         '                             NativeType* value)\n'
@@ -435,26 +435,25 @@
         '            DartDOMData* domData = static_cast<DartDOMData*>(\n'
         '                Dart_GetNativeIsolateData(args));\n'
         '            Dart_WeakPersistentHandle result =\n'
-        '                DartDOMWrapper::lookupWrapper(domData, isNode, value);\n'
+        '                DartDOMWrapper::lookupWrapper<Dart$(INTERFACE)>(domData, value);\n'
         '            if (result)\n'
         '                Dart_SetWeakHandleReturnValue(args, result);\n'
         '            else\n'
-        '                Dart_SetReturnValue(args, createWrapper(value));\n'
+        '                Dart_SetReturnValue(args, createWrapper(domData, value));\n'
         '        }\n'
         '    }\n',
-        )
+        INTERFACE=self._interface.id)
 
     if ('CustomToV8' in ext_attrs or
         'PureInterface' in ext_attrs or
         'CPPPureInterface' in ext_attrs or
         self._interface_type_info.custom_to_dart()):
       to_dart_emitter.Emit(
-          '    static Dart_Handle createWrapper(NativeType* value);\n')
+          '    static Dart_Handle createWrapper(DartDOMData* domData, NativeType* value);\n')
     else:
       to_dart_emitter.Emit(
-          '    static Dart_Handle createWrapper(NativeType* value)\n'
+          '    static Dart_Handle createWrapper(DartDOMData* domData, NativeType* value)\n'
           '    {\n'
-          '        DartDOMData* domData = DartDOMData::current();\n'
           '        return DartDOMWrapper::createWrapper<Dart$(INTERFACE)>(domData, value);\n'
           '    }\n',
           INTERFACE=self._interface.id)
diff --git a/tools/dom/src/AttributeMap.dart b/tools/dom/src/AttributeMap.dart
index b74110b..c212a23 100644
--- a/tools/dom/src/AttributeMap.dart
+++ b/tools/dom/src/AttributeMap.dart
@@ -9,6 +9,10 @@
 
   _AttributeMap(this._element);
 
+  void addAll(Map<String, String> other) {
+    other.forEach((k, v) { this[k] = v; });
+  }
+
   bool containsValue(String value) {
     for (var v in this.values) {
       if (value == v) {
@@ -165,6 +169,10 @@
 
   // interface Map
 
+  void addAll(Map<String, String> other) {
+    other.forEach((k, v) { this[k] = v; });
+  }
+
   // TODO: Use lazy iterator when it is available on Map.
   bool containsValue(String value) => values.any((v) => v == value);
 
diff --git a/tools/dom/src/native_DOMImplementation.dart b/tools/dom/src/native_DOMImplementation.dart
index e54cc11..23d9931 100644
--- a/tools/dom/src/native_DOMImplementation.dart
+++ b/tools/dom/src/native_DOMImplementation.dart
@@ -530,33 +530,36 @@
                                "is not supported in the browser");
 };
 
- class _Timer implements Timer {
-  var _canceler;
+class _Timer implements Timer {
+  static const int _STATE_TIMEOUT = 0;
+  static const int _STATE_INTERVAL = 1;
+  int _state;
 
   _Timer(int milliSeconds, void callback(Timer timer), bool repeating) {
-
     if (repeating) {
-      int id = window._setInterval(() {
+      _state = (window._setInterval(() {
         callback(this);
-      }, milliSeconds);
-      _canceler = () => window._clearInterval(id);
+      }, milliSeconds) << 1) | _STATE_INTERVAL;
     } else {
-      int id = window._setTimeout(() {
-        _canceler = null;
+      _state = (window._setTimeout(() {
+        _state = null;
         callback(this);
-      }, milliSeconds);
-      _canceler = () => window._clearTimeout(id);
+      }, milliSeconds) << 1) | _STATE_TIMEOUT;
     }
   }
 
   void cancel() {
-    if (_canceler != null) {
-      _canceler();
+    if (_state == null) return;
+    int id = _state >> 1;
+    if ((_state & 1) == _STATE_TIMEOUT) {
+      window._clearTimeout(id);
+    } else {
+      window._clearInterval(id);
     }
-    _canceler = null;
+    _state = null;
   }
 
-  bool get isActive => _canceler != null;
+  bool get isActive => _state != null;
 }
 
 get _timerFactoryClosure =>
diff --git a/tools/dom/templates/html/impl/impl_DataTransferItemList.darttemplate b/tools/dom/templates/html/impl/impl_DataTransferItemList.darttemplate
new file mode 100644
index 0000000..b43806f
--- /dev/null
+++ b/tools/dom/templates/html/impl/impl_DataTransferItemList.darttemplate
@@ -0,0 +1,19 @@
+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+part of $LIBRARYNAME;
+
+@DocsEditable()
+$(ANNOTATIONS)$(CLASS_MODIFIERS)class $CLASSNAME$EXTENDS$MIXINS$IMPLEMENTS$NATIVESPEC {
+$!MEMBERS
+
+  DataTransferItem operator[] (int index) {
+$if DART2JS
+    return JS('DataTransferItem', '#[#]', this, index);
+$else
+    return __getter__(index);
+$endif
+  }
+
+}
diff --git a/tools/dom/templates/html/impl/impl_Storage.darttemplate b/tools/dom/templates/html/impl/impl_Storage.darttemplate
index d9b0e1a..82d1f0c 100644
--- a/tools/dom/templates/html/impl/impl_Storage.darttemplate
+++ b/tools/dom/templates/html/impl/impl_Storage.darttemplate
@@ -32,6 +32,10 @@
 $(ANNOTATIONS)$(CLASS_MODIFIERS)class $CLASSNAME$EXTENDS
     implements Map<String, String> $NATIVESPEC {
 
+  void addAll(Map<String, String> other) {
+    other.forEach((k, v) { this[k] = v; });
+  }
+
   // TODO(nweiz): update this when maps support lazy iteration
   bool containsValue(String value) => values.any((e) => e == value);
 
diff --git a/tools/testing/dart/browser_controller.dart b/tools/testing/dart/browser_controller.dart
index 501f765..b25c992 100644
--- a/tools/testing/dart/browser_controller.dart
+++ b/tools/testing/dart/browser_controller.dart
@@ -1273,7 +1273,7 @@
         // Until we have the next task we set the current_id to a specific
         // negative value.
         contactBrowserController(
-            'GET', '$nextTestPath/$browserId', newTaskHandler, "", false); 
+            'GET', '$nextTestPath/$browserId', newTaskHandler, "", false);
       }
 
       function run(url) {
@@ -1308,7 +1308,7 @@
           }
         }
         contactBrowserController(
-            'POST', '$errorReportingUrl?test=1', handleReady, msg, true); 
+            'POST', '$errorReportingUrl?test=1', handleReady, msg, true);
       }
 
       function reportMessage(msg, isFirstMessage, isStatusUpdate) {
@@ -1324,8 +1324,15 @@
               function() {}, msg, true);
         } else {
           var is_double_report = test_completed;
+          var retry = 0;
           test_completed = true;
 
+          function reportDoneMessage() {
+            contactBrowserController(
+                'POST', '$reportPath/${browserId}?id=' + current_id,
+                handleReady, msg, true);
+          }
+
           function handleReady() {
             if (this.readyState == this.DONE) {
               if (this.status == 200) {
@@ -1333,13 +1340,17 @@
                   getNextTask();
                 }
               } else {
-                reportError('Error sending result to server');
+                reportError('Error sending result to server. Status: ' +
+                            this.status + ' Retry: ' + retry);
+                retry++;
+                if (retry < 3) {
+                  setTimeout(reportDoneMessage, 1000);
+                }
               }
             }
           }
-          contactBrowserController(
-            'POST', '$reportPath/${browserId}?id=' + current_id, handleReady,
-            msg, true);
+
+          reportDoneMessage();
         }
       }
 
@@ -1354,7 +1365,7 @@
       function messageHandler(e) {
         var msg = e.data;
         if (typeof msg != 'string') return;
-        
+
         var parsedData = parseResult(msg);
         if (parsedData) {
           // Only if the JSON was valid, we'll post it back.
diff --git a/tools/testing/dart/browser_test.dart b/tools/testing/dart/browser_test.dart
index fa3c48b..42aa821 100644
--- a/tools/testing/dart/browser_test.dart
+++ b/tools/testing/dart/browser_test.dart
@@ -6,12 +6,7 @@
 
 String getHtmlContents(String title,
                        String scriptType,
-                       Path sourceScript,
-                       {bool use_unittest_controller: false}) {
-  var testControllerJs = '/root_dart/tools/testing/dart/test_controller.js';
-  if (use_unittest_controller) {
-    testControllerJs = '/root_dart/pkg/unittest/lib/test_controller.js';
-  }
+                       Path sourceScript) {
   return """
 <!DOCTYPE html>
 <html>
@@ -29,7 +24,7 @@
 <body>
   <h1> Running $title </h1>
   <script type="text/javascript"
-          src="$testControllerJs">
+          src="/root_dart/tools/testing/dart/test_controller.js">
   </script>
   <script type="$scriptType" src="$sourceScript"
           onerror="scriptTagOnErrorCallback(null)"
diff --git a/tools/utils.py b/tools/utils.py
index 89da10f..de2425c 100644
--- a/tools/utils.py
+++ b/tools/utils.py
@@ -14,6 +14,15 @@
 import sys
 import tempfile
 
+class Version(object):
+  def __init__(self, channel, major, minor, patch, prerelease,
+               prerelease_patch):
+    self.channel = channel
+    self.major = major
+    self.minor = minor
+    self.patch = patch
+    self.prerelease = prerelease
+    self.prerelease_patch = prerelease_patch
 
 # Try to guess the host operating system.
 def GuessOS():
@@ -231,40 +240,47 @@
 def GetBaseDir():
   return BASE_DIR
 
-# Return the base part of the version, Major.Minor.Build.Patch,
-# without the _revision addition
 def GetShortVersion():
-  (channel, major, minor, build, patch) = ReadVersionFile()
-  # TODO(kustermann/ricow): Add the channel to the version string.
-  return '%s.%s.%s.%s' % (major, minor, build, patch)
+  version = ReadVersionFile()
+  return ('%s.%s.%s.%s.%s' % (
+      version.major, version.minor, version.patch, version.prerelease,
+      version.prerelease_patch))
 
-
-def GetVersion():
-  version_tuple = ReadVersionFile()
-  if not version_tuple:
+def GetSemanticSDKVersion():
+  version = ReadVersionFile()
+  if not version:
     return None
 
-  (channel, major, minor, build, patch) = version_tuple
-  revision = GetSVNRevision()
-  user = GetUserName()
-  # We don't add username to release builds (or any builds on the bots)
-  if user == 'chrome-bot':
-    user = ''
+  if version.channel == 'be':
+    postfix = '-edge.%s' % GetSVNRevision()
+  elif version.channel == 'dev':
+    postfix = '-dev.%s.%s' % (version.prerelease, version.prerelease_patch)
+  else:
+    assert version.channel == 'stable'
+    postfix = ''
 
-  user_string = ''
-  revision_string = ''
-  if user:
-    user_string = '_%s' % user
-  if revision:
-    revision_string = '_r%s' % revision
+  return '%s.%s.%s%s' % (version.major, version.minor, version.patch, postfix)
 
-  # TODO(kustermann/ricow): Add the channel to the version string.
-  return ("%s.%s.%s.%s%s%s" %
-          (major, minor, build, patch, revision_string, user_string))
+def GetEclipseVersionQualifier():
+  def pad(number, num_digits):
+    number_str = str(number)
+    return '0' * max(0, num_digits - len(number_str)) + number_str
+
+  version = ReadVersionFile()
+  if version.channel == 'be':
+    return 'edge_%s' % pad(GetSVNRevision(), 6)
+  elif version.channel == 'dev':
+    return 'dev_%s_%s' % (pad(version.prerelease, 2),
+                          pad(version.prerelease_patch, 2))
+  else:
+    return 'release'
+
+def GetVersion():
+  return GetSemanticSDKVersion()
 
 def GetChannel():
-  (channel, _, _, _, _) = ReadVersionFile()
-  return channel
+  version = ReadVersionFile()
+  return version.channel
 
 def GetUserName():
   key = 'USER'
@@ -273,6 +289,12 @@
   return os.environ.get(key, '')
 
 def ReadVersionFile():
+  def match_against(pattern, content):
+    match = re.search(pattern, content, flags=re.MULTILINE)
+    if match:
+      return match.group(1)
+    return None
+
   version_file = os.path.join(DART_DIR, 'tools', 'VERSION')
   try:
     fd = open(version_file)
@@ -281,19 +303,17 @@
   except:
     print "Warning: Couldn't read VERSION file (%s)" % version_file
     return None
-  channel_match = re.search(
-      '^CHANNEL ([A-Za-z0-9]+)$', content, flags=re.MULTILINE)
-  major_match = re.search('^MAJOR (\d+)$', content, flags=re.MULTILINE)
-  minor_match = re.search('^MINOR (\d+)$', content, flags=re.MULTILINE)
-  build_match = re.search('^BUILD (\d+)$', content, flags=re.MULTILINE)
-  patch_match = re.search('^PATCH (\d+)$', content, flags=re.MULTILINE)
-  if (channel_match and
-      major_match and
-      minor_match and
-      build_match and
-      patch_match):
-    return (channel_match.group(1), major_match.group(1), minor_match.group(1),
-            build_match.group(1), patch_match.group(1))
+
+  channel = match_against('^CHANNEL ([A-Za-z0-9]+)$', content)
+  major = match_against('^MAJOR (\d+)$', content)
+  minor = match_against('^MINOR (\d+)$', content)
+  patch = match_against('^PATCH (\d+)$', content)
+  prerelease = match_against('^PRERELEASE (\d+)$', content)
+  prerelease_patch = match_against('^PRERELEASE_PATCH (\d+)$', content)
+
+  if channel and major and minor and prerelease and prerelease_patch:
+    return Version(
+        channel, major, minor, patch, prerelease, prerelease_patch)
   else:
     print "Warning: VERSION file (%s) has wrong format" % version_file
     return None