anchor.diff:    }
   
     static void _dispatchEvent(sky.Event e) {
  -    UINode target = SkyNodeWrapper._getMounted(bridgeEventTargetToRenderNode(e.target));
  +    UINode target = RenderNodeWrapper._getMounted(bridgeEventTargetToRenderNode(e.target));
   
       // TODO(rafaelw): StopPropagation?
       while (target != null) {
  
positive.code:   }
  }
  
  class Image extends SkyElementWrapper {
  
    RenderCSSImage _root;
    RenderCSSImage _createNode() => new RenderCSSImage(this, this.src, this.width, this.height);
  
    static final Image _emptyImage = new Image();
  
    SkyNodeWrapper get _emptyNode => _emptyImage;
  
    final String src;
    final int width;
  
negative.code:   static final FlexContainer _emptyContainer = new FlexContainer();
      // direction doesn't matter if it's empty
  
    RenderNodeWrapper get _emptyNode => _emptyContainer;
  
    final FlexDirection direction;
  
  