parseUnit(augment)
  skipErrorTokens(augment)
  listener: beginCompilationUnit(augment)
  syntheticPreviousToken(augment)
  parseTopLevelDeclarationImpl(, Instance of 'DirectiveContext')
    parseMetadataStar()
      listener: beginMetadataStar(augment)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl()
      listener: beginTopLevelMember(augment)
      isReservedKeyword(()
      parseTopLevelMethod(, augment, null, augment, Instance of 'NoType', null, method, false)
        listener: beginTopLevelMethod(, augment, null)
        listener: handleNoType(augment)
        ensureIdentifierPotentiallyRecovered(augment, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(method, topLevelFunctionDeclaration)
        parseMethodTypeVar(method)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(method, method, false, MemberKind.TopLevelMethod)
          parseFormalParameters(method, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              listener: endFormalParameters(0, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(augment, null, })
  listener: endTopLevelDeclaration(augment)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(augment)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(augment)
      parseTopLevelMethod(}, augment, null, augment, Instance of 'VoidType', null, method, false)
        listener: beginTopLevelMethod(}, augment, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(method, topLevelFunctionDeclaration)
        parseMethodTypeVar(method)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(method, method, false, MemberKind.TopLevelMethod)
          parseFormalParameters(method, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              listener: endFormalParameters(0, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(augment, null, })
  listener: endTopLevelDeclaration(augment)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(augment)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(augment)
      isReservedKeyword(=>)
      parseTopLevelMethod(}, augment, null, augment, Instance of 'NoType', get, getter, false)
        listener: beginTopLevelMethod(}, augment, null)
        listener: handleNoType(augment)
        ensureIdentifierPotentiallyRecovered(get, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(getter, topLevelFunctionDeclaration)
        listener: handleNoTypeVariables(=>)
        parseGetterOrFormalParameters(getter, getter, true, MemberKind.TopLevelMethod)
          listener: handleNoFormalParameters(=>, MemberKind.TopLevelMethod)
        parseAsyncModifierOpt(getter)
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        inPlainSync()
        parseFunctionBody(getter, false, false)
          parseExpressionFunctionBody(=>, false)
            parseExpression(=>)
              parsePrecedenceExpression(=>, 1, true)
                parseUnaryExpression(=>, true)
                  parsePrimary(=>, expression)
                    parseLiteralNull(=>)
                      listener: handleLiteralNull(null)
            ensureSemicolon(null)
            listener: handleExpressionFunctionBody(=>, ;)
            inGenerator()
        listener: endTopLevelMethod(augment, get, ;)
  listener: endTopLevelDeclaration(augment)
  parseTopLevelDeclarationImpl(;, Instance of 'DirectiveContext')
    parseMetadataStar(;)
      listener: beginMetadataStar(augment)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(;)
      listener: beginTopLevelMember(augment)
      parseTopLevelMethod(;, augment, null, augment, Instance of 'SimpleType', get, getter, false)
        listener: beginTopLevelMethod(;, augment, null)
        listener: handleIdentifier(int, typeReference)
        listener: handleNoTypeArguments(get)
        listener: handleType(int, null)
        ensureIdentifierPotentiallyRecovered(get, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(getter, topLevelFunctionDeclaration)
        listener: handleNoTypeVariables(=>)
        parseGetterOrFormalParameters(getter, getter, true, MemberKind.TopLevelMethod)
          listener: handleNoFormalParameters(=>, MemberKind.TopLevelMethod)
        parseAsyncModifierOpt(getter)
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        inPlainSync()
        parseFunctionBody(getter, false, false)
          parseExpressionFunctionBody(=>, false)
            parseExpression(=>)
              parsePrecedenceExpression(=>, 1, true)
                parseUnaryExpression(=>, true)
                  parsePrimary(=>, expression)
                    parseLiteralInt(=>)
                      listener: handleLiteralInt(0)
            ensureSemicolon(0)
            listener: handleExpressionFunctionBody(=>, ;)
            inGenerator()
        listener: endTopLevelMethod(augment, get, ;)
  listener: endTopLevelDeclaration(augment)
  parseTopLevelDeclarationImpl(;, Instance of 'DirectiveContext')
    parseMetadataStar(;)
      listener: beginMetadataStar(augment)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(;)
      listener: beginTopLevelMember(augment)
      isReservedKeyword(()
      parseTopLevelMethod(;, augment, null, augment, Instance of 'NoType', set, setter, false)
        listener: beginTopLevelMethod(;, augment, null)
        listener: handleNoType(augment)
        ensureIdentifierPotentiallyRecovered(set, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(setter, topLevelFunctionDeclaration)
        listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(setter, setter, false, MemberKind.TopLevelMethod)
          parseFormalParameters(setter, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(value)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(value, MemberKind.TopLevelMethod, null, null, null)
                listener: handleNoType(()
                ensureIdentifier((, formalParameterDeclaration)
                  listener: handleIdentifier(value, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(augment, set, })
  listener: endTopLevelDeclaration(augment)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(augment)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(augment)
      parseTopLevelMethod(}, augment, null, augment, Instance of 'VoidType', set, setter, false)
        listener: beginTopLevelMethod(}, augment, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(set, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(setter, topLevelFunctionDeclaration)
        listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(setter, setter, false, MemberKind.TopLevelMethod)
          parseFormalParameters(setter, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(value)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(value, MemberKind.TopLevelMethod, null, null, null)
                listener: handleNoType(()
                ensureIdentifier((, formalParameterDeclaration)
                  listener: handleIdentifier(value, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, null, value, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(augment, set, })
  listener: endTopLevelDeclaration(augment)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(augment)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(augment)
      parseFields(}, null, augment, null, null, null, null, var, var, Instance of 'NoType', field, DeclarationKind.TopLevel, null, false)
        listener: beginFields(DeclarationKind.TopLevel, null, augment, null, null, null, null, var, })
        listener: handleNoType(var)
        ensureIdentifierPotentiallyRecovered(var, topLevelVariableDeclaration, false)
          listener: handleIdentifier(field, topLevelVariableDeclaration)
        parseFieldInitializerOpt(field, field, null, null, augment, null, var, DeclarationKind.TopLevel, null)
          listener: handleNoFieldInitializer(;)
        listener: endTopLevelFields(null, null, null, null, var, 1, augment, ;)
  listener: endTopLevelDeclaration(augment)
  parseTopLevelDeclarationImpl(;, Instance of 'DirectiveContext')
    parseMetadataStar(;)
      listener: beginMetadataStar(augment)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(;)
      listener: beginTopLevelMember(augment)
      parseFields(;, null, augment, null, null, null, null, final, final, Instance of 'NoType', field, DeclarationKind.TopLevel, null, false)
        listener: beginFields(DeclarationKind.TopLevel, null, augment, null, null, null, null, final, ;)
        listener: handleNoType(final)
        ensureIdentifierPotentiallyRecovered(final, topLevelVariableDeclaration, false)
          listener: handleIdentifier(field, topLevelVariableDeclaration)
        parseFieldInitializerOpt(field, field, null, null, augment, null, final, DeclarationKind.TopLevel, null)
          listener: beginFieldInitializer(=)
          parseExpression(=)
            parsePrecedenceExpression(=, 1, true)
              parseUnaryExpression(=, true)
                parsePrimary(=, expression)
                  parseLiteralInt(=)
                    listener: handleLiteralInt(0)
          listener: endFieldInitializer(=, ;)
        listener: endTopLevelFields(null, null, null, null, final, 1, augment, ;)
  listener: endTopLevelDeclaration(augment)
  parseTopLevelDeclarationImpl(;, Instance of 'DirectiveContext')
    parseMetadataStar(;)
      listener: beginMetadataStar(augment)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(;)
      listener: beginTopLevelMember(augment)
      parseFields(;, null, augment, null, null, null, null, const, const, Instance of 'NoType', field, DeclarationKind.TopLevel, null, false)
        listener: beginFields(DeclarationKind.TopLevel, null, augment, null, null, null, null, const, ;)
        listener: handleNoType(const)
        ensureIdentifierPotentiallyRecovered(const, topLevelVariableDeclaration, false)
          listener: handleIdentifier(field, topLevelVariableDeclaration)
        parseFieldInitializerOpt(field, field, null, null, augment, null, const, DeclarationKind.TopLevel, null)
          listener: beginFieldInitializer(=)
          parseExpression(=)
            parsePrecedenceExpression(=, 1, true)
              parseUnaryExpression(=, true)
                parsePrimary(=, expression)
                  parseLiteralInt(=)
                    listener: handleLiteralInt(0)
          listener: endFieldInitializer(=, ;)
        listener: endTopLevelFields(null, null, null, null, const, 1, augment, ;)
  listener: endTopLevelDeclaration(augment)
  parseTopLevelDeclarationImpl(;, Instance of 'DirectiveContext')
    parseMetadataStar(;)
      listener: beginMetadataStar(augment)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(;)
      listener: beginTopLevelMember(augment)
      parseFields(;, null, augment, null, null, null, null, null, augment, Instance of 'SimpleType', field, DeclarationKind.TopLevel, null, false)
        listener: beginFields(DeclarationKind.TopLevel, null, augment, null, null, null, null, null, ;)
        listener: handleIdentifier(int, typeReference)
        listener: handleNoTypeArguments(field)
        listener: handleType(int, null)
        ensureIdentifierPotentiallyRecovered(int, topLevelVariableDeclaration, false)
          listener: handleIdentifier(field, topLevelVariableDeclaration)
        parseFieldInitializerOpt(field, field, null, null, augment, null, null, DeclarationKind.TopLevel, null)
          listener: handleNoFieldInitializer(;)
        listener: endTopLevelFields(null, null, null, null, null, 1, augment, ;)
  listener: endTopLevelDeclaration(augment)
  parseTopLevelDeclarationImpl(;, Instance of 'DirectiveContext')
    parseMetadataStar(;)
      listener: beginMetadataStar(augment)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(;)
      listener: beginTopLevelMember(augment)
      parseFields(;, null, augment, null, null, null, late, var, var, Instance of 'NoType', field, DeclarationKind.TopLevel, null, false)
        listener: beginFields(DeclarationKind.TopLevel, null, augment, null, null, null, late, var, ;)
        listener: handleNoType(var)
        ensureIdentifierPotentiallyRecovered(var, topLevelVariableDeclaration, false)
          listener: handleIdentifier(field, topLevelVariableDeclaration)
        parseFieldInitializerOpt(field, field, late, null, augment, null, var, DeclarationKind.TopLevel, null)
          listener: handleNoFieldInitializer(;)
        listener: endTopLevelFields(null, null, null, late, var, 1, augment, ;)
  listener: endTopLevelDeclaration(augment)
  parseTopLevelDeclarationImpl(;, Instance of 'DirectiveContext')
    parseMetadataStar(;)
      listener: beginMetadataStar(augment)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(;)
      listener: beginTopLevelMember(augment)
      parseFields(;, null, augment, null, null, null, late, final, final, Instance of 'NoType', field, DeclarationKind.TopLevel, null, false)
        listener: beginFields(DeclarationKind.TopLevel, null, augment, null, null, null, late, final, ;)
        listener: handleNoType(final)
        ensureIdentifierPotentiallyRecovered(final, topLevelVariableDeclaration, false)
          listener: handleIdentifier(field, topLevelVariableDeclaration)
        parseFieldInitializerOpt(field, field, late, null, augment, null, final, DeclarationKind.TopLevel, null)
          listener: handleNoFieldInitializer(;)
        listener: endTopLevelFields(null, null, null, late, final, 1, augment, ;)
  listener: endTopLevelDeclaration(augment)
  parseTopLevelDeclarationImpl(;, Instance of 'DirectiveContext')
    parseMetadataStar(;)
      listener: beginMetadataStar(augment)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(;)
      listener: beginTopLevelMember(augment)
      parseFields(;, null, augment, null, null, null, late, null, late, Instance of 'SimpleType', field, DeclarationKind.TopLevel, null, false)
        listener: beginFields(DeclarationKind.TopLevel, null, augment, null, null, null, late, null, ;)
        listener: handleIdentifier(int, typeReference)
        listener: handleNoTypeArguments(field)
        listener: handleType(int, null)
        ensureIdentifierPotentiallyRecovered(int, topLevelVariableDeclaration, false)
          listener: handleIdentifier(field, topLevelVariableDeclaration)
        parseFieldInitializerOpt(field, field, late, null, augment, null, null, DeclarationKind.TopLevel, null)
          listener: handleNoFieldInitializer(;)
        listener: endTopLevelFields(null, null, null, late, null, 1, augment, ;)
  listener: endTopLevelDeclaration(augment)
  parseTopLevelDeclarationImpl(;, Instance of 'DirectiveContext')
    parseMetadataStar(;)
      listener: beginMetadataStar(augment)
      listener: endMetadataStar(0)
    parseTopLevelKeywordDeclaration(;, class, null, Instance of 'DirectiveContext')
      parseClassOrNamedMixinApplication(null, null, augment, class)
        listener: beginClassOrMixinOrNamedMixinApplicationPrelude(class)
        ensureIdentifier(class, classOrMixinDeclaration)
          listener: handleIdentifier(Class, classOrMixinDeclaration)
        listener: handleNoTypeVariables({)
        listener: beginClassDeclaration(class, null, null, augment, Class)
        parseClass(Class, class, class, Class)
          parseClassHeaderOpt(Class, class, class)
            parseClassExtendsOpt(Class)
              listener: handleNoType(Class)
              listener: handleClassExtends(null, 1)
            parseClassWithClauseOpt(Class)
              listener: handleClassNoWithClause()
            parseClassOrMixinOrEnumImplementsOpt(Class)
              listener: handleImplements(null, 0)
            listener: handleClassHeader(class, class, null)
          parseClassOrMixinOrExtensionBody(Class, DeclarationKind.Class, Class)
            listener: beginClassOrMixinOrExtensionBody(DeclarationKind.Class, {)
            notEofOrValue(}, })
            listener: endClassOrMixinOrExtensionBody(DeclarationKind.Class, 0, {, })
          listener: endClassDeclaration(class, })
  listener: endTopLevelDeclaration(augment)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(augment)
      listener: endMetadataStar(0)
    parseTopLevelKeywordDeclaration(}, class, null, Instance of 'DirectiveContext')
      parseClassOrNamedMixinApplication(abstract, null, augment, class)
        listener: beginClassOrMixinOrNamedMixinApplicationPrelude(abstract)
        ensureIdentifier(class, classOrMixinDeclaration)
          listener: handleIdentifier(Class, classOrMixinDeclaration)
        listener: handleNoTypeVariables({)
        listener: beginClassDeclaration(abstract, abstract, null, augment, Class)
        parseClass(Class, abstract, class, Class)
          parseClassHeaderOpt(Class, abstract, class)
            parseClassExtendsOpt(Class)
              listener: handleNoType(Class)
              listener: handleClassExtends(null, 1)
            parseClassWithClauseOpt(Class)
              listener: handleClassNoWithClause()
            parseClassOrMixinOrEnumImplementsOpt(Class)
              listener: handleImplements(null, 0)
            listener: handleClassHeader(abstract, class, null)
          parseClassOrMixinOrExtensionBody(Class, DeclarationKind.Class, Class)
            listener: beginClassOrMixinOrExtensionBody(DeclarationKind.Class, {)
            notEofOrValue(}, })
            listener: endClassOrMixinOrExtensionBody(DeclarationKind.Class, 0, {, })
          listener: endClassDeclaration(abstract, })
  listener: endTopLevelDeclaration(augment)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(augment)
      listener: endMetadataStar(0)
    parseTopLevelKeywordDeclaration(}, class, null, Instance of 'DirectiveContext')
      parseClassOrNamedMixinApplication(null, null, augment, class)
        listener: beginClassOrMixinOrNamedMixinApplicationPrelude(class)
        ensureIdentifier(class, classOrMixinDeclaration)
          listener: handleIdentifier(Class, classOrMixinDeclaration)
        listener: handleNoTypeVariables(=)
        listener: beginNamedMixinApplication(class, null, null, augment, Class)
        parseNamedMixinApplication(Class, class, class)
          listener: handleIdentifier(Object, typeReference)
          listener: handleNoTypeArguments(with)
          listener: handleType(Object, null)
          parseMixinApplicationRest(Object)
            parseTypeList(with)
              listener: beginTypeList(Mixin)
              listener: handleIdentifier(Mixin, typeReference)
              listener: handleNoTypeArguments(;)
              listener: handleType(Mixin, null)
              listener: endTypeList(1)
            listener: handleNamedMixinApplicationWithClause(with)
          ensureSemicolon(Mixin)
          listener: endNamedMixinApplication(class, class, =, null, ;)
  listener: endTopLevelDeclaration(augment)
  parseTopLevelDeclarationImpl(;, Instance of 'DirectiveContext')
    parseMetadataStar(;)
      listener: beginMetadataStar(augment)
      listener: endMetadataStar(0)
    parseTopLevelKeywordDeclaration(;, class, null, Instance of 'DirectiveContext')
      parseClassOrNamedMixinApplication(abstract, null, augment, class)
        listener: beginClassOrMixinOrNamedMixinApplicationPrelude(abstract)
        ensureIdentifier(class, classOrMixinDeclaration)
          listener: handleIdentifier(Class, classOrMixinDeclaration)
        listener: handleNoTypeVariables(=)
        listener: beginNamedMixinApplication(abstract, abstract, null, augment, Class)
        parseNamedMixinApplication(Class, abstract, class)
          listener: handleIdentifier(Object, typeReference)
          listener: handleNoTypeArguments(with)
          listener: handleType(Object, null)
          parseMixinApplicationRest(Object)
            parseTypeList(with)
              listener: beginTypeList(Mixin)
              listener: handleIdentifier(Mixin, typeReference)
              listener: handleNoTypeArguments(;)
              listener: handleType(Mixin, null)
              listener: endTypeList(1)
            listener: handleNamedMixinApplicationWithClause(with)
          ensureSemicolon(Mixin)
          listener: endNamedMixinApplication(abstract, class, =, null, ;)
  listener: endTopLevelDeclaration(augment)
  parseTopLevelDeclarationImpl(;, Instance of 'DirectiveContext')
    parseMetadataStar(;)
      listener: beginMetadataStar(augment)
      listener: endMetadataStar(0)
    parseTopLevelKeywordDeclaration(;, mixin, null, Instance of 'DirectiveContext')
      parseMixin(augment, mixin)
        listener: beginClassOrMixinOrNamedMixinApplicationPrelude(mixin)
        ensureIdentifier(mixin, classOrMixinDeclaration)
          listener: handleIdentifier(Mixin, classOrMixinDeclaration)
        listener: handleNoTypeVariables({)
        listener: beginMixinDeclaration(augment, mixin, Mixin)
        parseMixinHeaderOpt(Mixin, mixin)
          parseMixinOnOpt(Mixin)
            listener: handleMixinOn(null, 0)
          parseClassOrMixinOrEnumImplementsOpt(Mixin)
            listener: handleImplements(null, 0)
          listener: handleMixinHeader(mixin)
        parseClassOrMixinOrExtensionBody(Mixin, DeclarationKind.Mixin, Mixin)
          listener: beginClassOrMixinOrExtensionBody(DeclarationKind.Mixin, {)
          notEofOrValue(}, })
          listener: endClassOrMixinOrExtensionBody(DeclarationKind.Mixin, 0, {, })
        listener: endMixinDeclaration(mixin, })
  listener: endTopLevelDeclaration()
  reportAllErrorTokens(augment)
  listener: endCompilationUnit(18, )