anchor.diff:    String _name;
     String _displayName;
   
  -  /**
  -   * Return the class in which this executable appears, maybe `null` for a
  -   * top-level function.
  -   */
  -  final ClassElementForLink_Class enclosingClass;
  -
     @override
     final CompilationUnitElementForLink compilationUnit;
   
  -  ExecutableElementForLink(
  -      this.compilationUnit, this.enclosingClass, this._unlinkedExecutable);
  +  ExecutableElementForLink(this.compilationUnit, this._unlinkedExecutable);
   
     /**
      * If the executable element had an explicitly declared return type, return
  
positive.code:       return VoidTypeImpl.instance;
      } else {
        return DynamicTypeImpl.instance;
      }
    }
  }
  
negative.code:     }
      return _displayName;
    }
  
    @override
    bool get hasImplicitReturnType => _unlinkedExecutable.returnType == null;
  