anchor.diff:  
   
     /** @domName Node.nodeType */
  -  int get nodeType native "Node_nodeType_Getter";
  +  int get $dom_nodeType native "Node_nodeType_Getter";
   
   
     /** @domName Node.ownerDocument */
  
positive.code:   DOMApplicationCache get applicationCache native "DOMWindow_applicationCache_Getter";
  
  
    /** @domName DOMWindow.closed */
    bool get closed native "DOMWindow_closed_Getter";
  
  
negative.code:     return visitObject(x);
    }
  
    abstract visitPrimitive(x);
    abstract visitList(List x);
    abstract visitMap(Map x);
    abstract visitSendPort(SendPort x);
    abstract visitSendPortSync(SendPortSync x);
  
    visitObject(Object x) {
      // TODO(floitsch): make this a real exception. (which one)?
  