anchor.diff:   */
   class _ElementInfo {
     /**
  +   * TODO(scheglov) remove after fixing build flakiness on bots
  +   */
  +  final Element element;
  +
  +  /**
      * The identifier of the [CompilationUnitElement] containing this element.
      */
     final int unitId;
  
positive.code:         offset = 0;
        }
        IndexSyntheticElementKind kind = getIndexElementKind(element);
        return new _ElementInfo(unitId, offset, kind);
      });
    }
  
  
negative.code:    */
    int id;
  
    _ElementInfo(this.element, this.unitId, this.offset, this.kind);
  }
  
  /**
  