diff --git a/pkg/analyzer/lib/src/dart/ast/utilities.dart b/pkg/analyzer/lib/src/dart/ast/utilities.dart
index 7acc163..051fa2b 100644
--- a/pkg/analyzer/lib/src/dart/ast/utilities.dart
+++ b/pkg/analyzer/lib/src/dart/ast/utilities.dart
@@ -3075,14 +3075,14 @@
 
   @override
   CompilationUnit visitCompilationUnit(CompilationUnit node) {
-    CompilationUnit copy = astFactory.compilationUnit(
+    CompilationUnitImpl copy = astFactory.compilationUnit(
         _mapToken(node.beginToken),
         _cloneNode(node.scriptTag),
         _cloneNodeList(node.directives),
         _cloneNodeList(node.declarations),
         _mapToken(node.endToken));
     copy.lineInfo = node.lineInfo;
-    copy.element = node.element;
+    copy.declaredElement = node.declaredElement;
     return copy;
   }
 
@@ -3112,7 +3112,7 @@
   @override
   ConstructorDeclaration visitConstructorDeclaration(
       ConstructorDeclaration node) {
-    ConstructorDeclaration copy = astFactory.constructorDeclaration(
+    ConstructorDeclarationImpl copy = astFactory.constructorDeclaration(
         _cloneNode(node.documentationComment),
         _cloneNodeList(node.metadata),
         _mapToken(node.externalKeyword),
@@ -3126,7 +3126,7 @@
         _cloneNodeList(node.initializers),
         _cloneNode(node.redirectedConstructor),
         _cloneNode(node.body));
-    copy.element = node.element;
+    copy.declaredElement = node.declaredElement;
     return copy;
   }
 
@@ -3337,11 +3337,11 @@
 
   @override
   FunctionExpression visitFunctionExpression(FunctionExpression node) {
-    FunctionExpression copy = astFactory.functionExpression(
+    FunctionExpressionImpl copy = astFactory.functionExpression(
         _cloneNode(node.typeParameters),
         _cloneNode(node.parameters),
         _cloneNode(node.body));
-    copy.element = node.element;
+    copy.declaredElement = node.declaredElement;
     copy.staticType = node.staticType;
     return copy;
   }
@@ -5749,7 +5749,7 @@
 
   @override
   bool visitConstructorDeclaration(ConstructorDeclaration node) {
-    ConstructorDeclaration toNode = this._toNode as ConstructorDeclaration;
+    ConstructorDeclarationImpl toNode = this._toNode as ConstructorDeclaration;
     if (_and(
         _isEqualNodes(node.documentationComment, toNode.documentationComment),
         _isEqualNodeLists(node.metadata, toNode.metadata),
@@ -5764,7 +5764,7 @@
         _isEqualNodeLists(node.initializers, toNode.initializers),
         _isEqualNodes(node.redirectedConstructor, toNode.redirectedConstructor),
         _isEqualNodes(node.body, toNode.body))) {
-      toNode.element = node.declaredElement;
+      toNode.declaredElement = node.declaredElement;
       return true;
     }
     return false;
@@ -6020,10 +6020,10 @@
 
   @override
   bool visitFunctionExpression(FunctionExpression node) {
-    FunctionExpression toNode = this._toNode as FunctionExpression;
+    FunctionExpressionImpl toNode = this._toNode as FunctionExpression;
     if (_and(_isEqualNodes(node.parameters, toNode.parameters),
         _isEqualNodes(node.body, toNode.body))) {
-      toNode.element = node.declaredElement;
+      toNode.declaredElement = node.declaredElement;
       toNode.staticType = node.staticType;
       return true;
     }
diff --git a/pkg/analyzer/lib/src/dart/constant/utilities.dart b/pkg/analyzer/lib/src/dart/constant/utilities.dart
index b0aa23a..233ea04 100644
--- a/pkg/analyzer/lib/src/dart/constant/utilities.dart
+++ b/pkg/analyzer/lib/src/dart/constant/utilities.dart
@@ -9,6 +9,7 @@
 import 'package:analyzer/dart/ast/token.dart';
 import 'package:analyzer/dart/ast/visitor.dart';
 import 'package:analyzer/dart/element/element.dart';
+import 'package:analyzer/src/dart/ast/ast.dart';
 import 'package:analyzer/src/dart/ast/token.dart';
 import 'package:analyzer/src/dart/ast/utilities.dart';
 import 'package:analyzer/src/dart/element/element.dart';
@@ -55,8 +56,8 @@
 
   @override
   FunctionExpression visitFunctionExpression(FunctionExpression node) {
-    FunctionExpression expression = super.visitFunctionExpression(node);
-    expression.element = node.declaredElement;
+    FunctionExpressionImpl expression = super.visitFunctionExpression(node);
+    expression.declaredElement = node.declaredElement;
     return expression;
   }
 
diff --git a/pkg/analyzer/lib/src/dart/element/builder.dart b/pkg/analyzer/lib/src/dart/element/builder.dart
index cefb1d8..5d439ae 100644
--- a/pkg/analyzer/lib/src/dart/element/builder.dart
+++ b/pkg/analyzer/lib/src/dart/element/builder.dart
@@ -144,7 +144,7 @@
       element.generator = true;
     }
     _currentHolder.addConstructor(element);
-    node.element = element;
+    (node as ConstructorDeclarationImpl).declaredElement = element;
     if (constructorName == null) {
       Identifier returnType = node.returnType;
       if (returnType != null) {
@@ -208,7 +208,7 @@
 
   @override
   void visitFunctionDeclaration(FunctionDeclaration node) {
-    FunctionExpression expression = node.functionExpression;
+    FunctionExpressionImpl expression = node.functionExpression;
     if (expression != null) {
       ElementHolder holder = new ElementHolder();
       _visitChildren(holder, node);
@@ -239,7 +239,7 @@
           element.hasImplicitReturnType = true;
         }
         _currentHolder.addFunction(element);
-        expression.element = element;
+        expression.declaredElement = element;
         functionName.staticElement = element;
       } else {
         SimpleIdentifier propertyNameNode = node.name;
@@ -282,7 +282,7 @@
             getter.hasImplicitReturnType = true;
           }
           _currentHolder.addAccessor(getter);
-          expression.element = getter;
+          expression.declaredElement = getter;
           propertyNameNode.staticElement = getter;
         } else {
           PropertyAccessorElementImpl setter =
@@ -312,7 +312,7 @@
           variable.setter = setter;
           variable.isFinal = false;
           _currentHolder.addAccessor(setter);
-          expression.element = setter;
+          expression.declaredElement = setter;
           propertyNameNode.staticElement = setter;
         }
       }
@@ -348,7 +348,7 @@
     element.type = new FunctionTypeImpl(element);
     element.hasImplicitReturnType = true;
     _currentHolder.addFunction(element);
-    node.element = element;
+    (node as FunctionExpressionImpl).declaredElement = element;
     holder.validate();
   }
 
@@ -1203,7 +1203,7 @@
 
   @override
   void visitFunctionDeclaration(FunctionDeclaration node) {
-    FunctionExpression expression = node.functionExpression;
+    FunctionExpressionImpl expression = node.functionExpression;
     if (expression == null) {
       return;
     }
@@ -1245,7 +1245,7 @@
     }
 
     _currentHolder.addFunction(element);
-    expression.element = element;
+    expression.declaredElement = element;
     node.name.staticElement = element;
     holder.validate();
   }
@@ -1284,7 +1284,7 @@
     element.type = new FunctionTypeImpl(element);
     element.hasImplicitReturnType = true;
     _currentHolder.addFunction(element);
-    node.element = element;
+    (node as FunctionExpressionImpl).declaredElement = element;
     holder.validate();
   }
 
diff --git a/pkg/analyzer/lib/src/generated/declaration_resolver.dart b/pkg/analyzer/lib/src/generated/declaration_resolver.dart
index 0f0d19b..7175395 100644
--- a/pkg/analyzer/lib/src/generated/declaration_resolver.dart
+++ b/pkg/analyzer/lib/src/generated/declaration_resolver.dart
@@ -103,7 +103,7 @@
     ConstructorElement element = _match(node.name, _walker.getConstructor(),
         offset: node.name?.offset ?? node.returnType.offset);
     _walk(new ElementWalker.forExecutable(element, _enclosingUnit), () {
-      node.element = element;
+      (node as ConstructorDeclarationImpl).declaredElement = element;
       super.visitConstructorDeclaration(node);
     });
     resolveMetadata(node, node.metadata, element);
@@ -232,7 +232,8 @@
       }
     }
     _setGenericFunctionType(node.returnType, element.returnType);
-    node.functionExpression.element = element;
+    (node.functionExpression as FunctionExpressionImpl).declaredElement =
+        element;
     _walker._elementHolder?.addFunction(element);
     _walk(new ElementWalker.forExecutable(element, _enclosingUnit), () {
       super.visitFunctionDeclaration(node);
diff --git a/pkg/analyzer/lib/src/generated/engine.dart b/pkg/analyzer/lib/src/generated/engine.dart
index f4d63dc..b56a2ca 100644
--- a/pkg/analyzer/lib/src/generated/engine.dart
+++ b/pkg/analyzer/lib/src/generated/engine.dart
@@ -17,6 +17,7 @@
 import 'package:analyzer/src/context/builder.dart' show EmbedderYamlLocator;
 import 'package:analyzer/src/context/cache.dart';
 import 'package:analyzer/src/context/context.dart';
+import 'package:analyzer/src/dart/ast/ast.dart';
 import 'package:analyzer/src/generated/constant.dart';
 import 'package:analyzer/src/generated/java_engine.dart';
 import 'package:analyzer/src/generated/resolver.dart';
@@ -2751,7 +2752,7 @@
   @override
   void visitConstructorDeclaration(ConstructorDeclaration node) {
     if (eraseDeclarations) {
-      node.element = null;
+      (node as ConstructorDeclarationImpl).declaredElement = null;
     }
     super.visitConstructorDeclaration(node);
   }
@@ -2785,7 +2786,7 @@
   @override
   void visitFunctionExpression(FunctionExpression node) {
     if (eraseDeclarations) {
-      node.element = null;
+      (node as FunctionExpressionImpl).declaredElement = null;
     }
     super.visitFunctionExpression(node);
   }
diff --git a/pkg/analyzer/lib/src/summary/expr_builder.dart b/pkg/analyzer/lib/src/summary/expr_builder.dart
index 59af2b3..e6af09e 100644
--- a/pkg/analyzer/lib/src/summary/expr_builder.dart
+++ b/pkg/analyzer/lib/src/summary/expr_builder.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, 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.
 
@@ -766,9 +766,9 @@
       functionBody = astFactory.expressionFunctionBody(asyncKeyword,
           TokenFactory.tokenFromType(TokenType.FUNCTION), bodyExpr, null);
     }
-    var functionExpression = astFactory.functionExpression(
+    FunctionExpressionImpl functionExpression = astFactory.functionExpression(
         null, AstTestFactory.formalParameterList(parameters), functionBody);
-    functionExpression.element = functionElement;
+    functionExpression.declaredElement = functionElement;
     _push(functionExpression);
   }
 
diff --git a/pkg/analyzer/test/generated/static_type_analyzer_test.dart b/pkg/analyzer/test/generated/static_type_analyzer_test.dart
index e0c2bc9..eae9fe1 100644
--- a/pkg/analyzer/test/generated/static_type_analyzer_test.dart
+++ b/pkg/analyzer/test/generated/static_type_analyzer_test.dart
@@ -1586,7 +1586,7 @@
     FunctionElementImpl element = new FunctionElementImpl.forNode(null);
     element.parameters = parameterElements;
     element.type = new FunctionTypeImpl(element);
-    node.element = element;
+    (node as FunctionExpressionImpl).declaredElement = element;
     return node;
   }
 
diff --git a/pkg/analyzer/test/src/dart/ast/utilities_test.dart b/pkg/analyzer/test/src/dart/ast/utilities_test.dart
index ad836a6..f19f1bd 100644
--- a/pkg/analyzer/test/src/dart/ast/utilities_test.dart
+++ b/pkg/analyzer/test/src/dart/ast/utilities_test.dart
@@ -570,14 +570,14 @@
   void test_visitConstructorDeclaration() {
     String className = "A";
     String constructorName = "c";
-    ConstructorDeclaration fromNode = AstTestFactory.constructorDeclaration(
+    ConstructorDeclarationImpl fromNode = AstTestFactory.constructorDeclaration(
         AstTestFactory.identifier3(className),
         constructorName,
         AstTestFactory.formalParameterList(),
         null);
     ConstructorElement element = ElementFactory.constructorElement2(
         ElementFactory.classElement2(className), constructorName);
-    fromNode.element = element;
+    fromNode.declaredElement = element;
     ConstructorDeclaration toNode = AstTestFactory.constructorDeclaration(
         AstTestFactory.identifier3(className),
         constructorName,
@@ -618,12 +618,12 @@
   }
 
   void test_visitFunctionExpression() {
-    FunctionExpression fromNode = AstTestFactory.functionExpression2(
+    FunctionExpressionImpl fromNode = AstTestFactory.functionExpression2(
         AstTestFactory.formalParameterList(),
         AstTestFactory.emptyFunctionBody());
     MethodElement element = ElementFactory.methodElement(
         "m", ElementFactory.classElement2("C").type);
-    fromNode.element = element;
+    fromNode.declaredElement = element;
     DartType staticType = ElementFactory.classElement2("C").type;
     fromNode.staticType = staticType;
     FunctionExpression toNode = AstTestFactory.functionExpression2(
diff --git a/pkg/analyzer/test/src/dart/constant/utilities_test.dart b/pkg/analyzer/test/src/dart/constant/utilities_test.dart
index 05e7d25..0fa3898 100644
--- a/pkg/analyzer/test/src/dart/constant/utilities_test.dart
+++ b/pkg/analyzer/test/src/dart/constant/utilities_test.dart
@@ -6,6 +6,7 @@
 import 'package:analyzer/dart/ast/standard_ast_factory.dart';
 import 'package:analyzer/dart/ast/token.dart';
 import 'package:analyzer/dart/element/element.dart';
+import 'package:analyzer/src/dart/ast/ast.dart';
 import 'package:analyzer/src/dart/ast/token.dart';
 import 'package:analyzer/src/dart/element/element.dart';
 import 'package:analyzer/src/generated/constant.dart';
@@ -191,7 +192,7 @@
 
   ConstructorElement _setupConstructorDeclaration(String name, bool isConst) {
     Keyword constKeyword = isConst ? Keyword.CONST : null;
-    ConstructorDeclaration constructorDeclaration =
+    ConstructorDeclarationImpl constructorDeclaration =
         AstTestFactory.constructorDeclaration2(
             constKeyword,
             null,
@@ -203,7 +204,7 @@
     ClassElement classElement = ElementFactory.classElement2(name);
     ConstructorElement element =
         ElementFactory.constructorElement(classElement, name, isConst);
-    constructorDeclaration.element = element;
+    constructorDeclaration.declaredElement = element;
     _node = constructorDeclaration;
     return element;
   }
@@ -234,7 +235,7 @@
     classElement.fields = <FieldElement>[fieldElement];
     classDeclaration.name.staticElement = classElement;
     if (hasConstConstructor) {
-      ConstructorDeclaration constructorDeclaration =
+      ConstructorDeclarationImpl constructorDeclaration =
           AstTestFactory.constructorDeclaration2(
               Keyword.CONST,
               null,
@@ -246,7 +247,7 @@
       classDeclaration.members.add(constructorDeclaration);
       ConstructorElement constructorElement =
           ElementFactory.constructorElement(classElement, '', true);
-      constructorDeclaration.element = constructorElement;
+      constructorDeclaration.declaredElement = constructorElement;
       classElement.constructors = <ConstructorElement>[constructorElement];
     } else {
       classElement.constructors = const <ConstructorElement>[];