anchor.diff:    final List<_Subscription<ExtendsClause>> _forExtendsClause = [];
     final List<_Subscription<FieldDeclaration>> _forFieldDeclaration = [];
     final List<_Subscription<FieldFormalParameter>> _forFieldFormalParameter = [];
  +  final List<_Subscription<ForEachPartsWithDeclaration>>
  +      _forForEachPartsWithDeclaration = [];
  +  final List<_Subscription<ForEachPartsWithIdentifier>>
  +      _forForEachPartsWithIdentifier = [];
     final List<_Subscription<ForEachStatement>> _forForEachStatement = [];
     final List<_Subscription<FormalParameterList>> _forFormalParameterList = [];
  +  final List<_Subscription<ForPartsWithDeclarations>>
  +      _forForPartsWithDeclarations = [];
  +  final List<_Subscription<ForPartsWithExpression>> _forForPartsWithExpression =
  +      [];
     final List<_Subscription<ForStatement>> _forForStatement = [];
  +  final List<_Subscription<ForStatement2>> _forForStatement2 = [];
     final List<_Subscription<FunctionDeclaration>> _forFunctionDeclaration = [];
     final List<_Subscription<FunctionDeclarationStatement>>
         _forFunctionDeclarationStatement = [];
  
positive.code:       _forRedirectingConstructorInvocation = [];
    final List<_Subscription<RethrowExpression>> _forRethrowExpression = [];
    final List<_Subscription<ReturnStatement>> _forReturnStatement = [];
    final List<_Subscription<ShowCombinator>> _forShowCombinator = [];
    final List<_Subscription<SimpleFormalParameter>> _forSimpleFormalParameter =
        [];
    final List<_Subscription<SimpleIdentifier>> _forSimpleIdentifier = [];
    final List<_Subscription<SimpleStringLiteral>> _forSimpleStringLiteral = [];
    final List<_Subscription<StringInterpolation>> _forStringInterpolation = [];
    final List<_Subscription<SuperConstructorInvocation>>
        _forSuperConstructorInvocation = [];
  
negative.code:   final List<_Subscription<LibraryDirective>> _forLibraryDirective = [];
    final List<_Subscription<LibraryIdentifier>> _forLibraryIdentifier = [];
    final List<_Subscription<ListLiteral>> _forListLiteral = [];
    final List<_Subscription<ListLiteral2>> _forListLiteral2 = [];
    final List<_Subscription<MapForElement>> _forMapForElement = [];
    final List<_Subscription<MapIfElement>> _forMapIfElement = [];
    final List<_Subscription<MapLiteral>> _forMapLiteral = [];
    final List<_Subscription<MapLiteral2>> _forMapLiteral2 = [];
    final List<_Subscription<MapLiteralEntry>> _forMapLiteralEntry = [];
    final List<_Subscription<MethodDeclaration>> _forMethodDeclaration = [];
    final List<_Subscription<MethodInvocation>> _forMethodInvocation = [];
  