anchor.diff:  
   class OutlineClass extends OutlineTopLevelItem {
     html.UListElement _childrenRootElement = new html.UListElement();
  -
     List<OutlineClassMember> members = [];
  -  StreamController childSelectedController = new StreamController();
  -  Stream get onChildSelected => childSelectedController.stream;
   
     OutlineClass(services.OutlineClass data)
         : super(data, "class") {
  
positive.code: 
      _anchor = new html.AnchorElement(href: "#");
      _anchor.text = displayName;
      _element.append(_anchor);
  
      if (_INCLUDE_TYPES && returnType != null && returnType.isNotEmpty) {
  
negative.code:     _postProcess();
    }
  
    void _addItem(OutlineClassMember item) {
      _childrenRootElement.append(item.element);
      members.add(item);
    }
  
    void _populate(services.OutlineClass classData) {
  