anchor.diff:      element.constructors = constructors;
       element.fields = holder.fields;
       element.methods = holder.methods;
  -    // Function types must be initialized after the enclosing element has been
  -    // set, for them to pick up the type parameters.
  -    for (ExecutableElementImpl e in _functionTypesToFix) {
  -      e.type = new FunctionTypeImpl(e);
  -    }
  -    _functionTypesToFix = null;
       _currentHolder.addType(element);
       className.staticElement = element;
       _fieldMap = null;
  
positive.code:   @override
    Object visitClassDeclaration(ClassDeclaration node) {
      ElementHolder holder = new ElementHolder();
      _functionTypesToFix = new List<ExecutableElementImpl>();
      //
      // Process field declarations before constructors and methods so that field
      // formal parameters can be correctly resolved to their fields.
  
negative.code:         element.setVisibleRange(enclosingBlock.offset, enclosingBlock.length);
        }
      }
      element.type = new FunctionTypeImpl(element);
      element.hasImplicitReturnType = true;
      _currentHolder.addFunction(element);
      node.element = element;
  