anchor.diff:        var elementBuilder = LocalElementBuilder(ElementHolder(), null);
         partial.initializer?.accept(elementBuilder);
       }
  -    _metadata(partial.metadata, element);
     }
   
     void _variableDeclarationList(
  
positive.code:       }
      });
      _metadata(partial.metadata, element);
    }
  
    void _fieldFormalParameter(
  
negative.code:       return partial;
      } else if (full is TopLevelVariableDeclaration &&
          partial is TopLevelVariableDeclaration) {
        _topLevelVariableDeclaration(full, partial);
        return partial;
      } else if (full is TypeName && partial is TypeName) {
        _typeName(full, partial);
  