Strip unused functionality from dart:html and fix strong mode errors. Switch from blacklisting pure…

tools/dom/src/WrappedList.dart

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 part of dart.dom.html;
 
 /**
  * A list which just wraps another list, for either intercepting list calls or
  * retyping the list (for example, from List<A> to List<B> where B extends A).
  */
 class _WrappedList<E extends Node> extends ListBase<E>
     implements NodeListWrapper {
   final List<Node> _list;
 
   _WrappedList(this._list);
 
   // Iterable APIs
 
-  Iterator<E> get iterator => new _WrappedIterator(_list.iterator);
+  Iterator<E> get iterator => new _WrappedIterator<E>(_list.iterator);
 
   int get length => _list.length;
 
   // Collection APIs
 
   void add(E element) { _list.add(element); }
 
   bool remove(Object element) => _list.remove(element);
 
   void clear() { _list.clear(); }
@@ skipping 43 matching lines @@
 
   bool moveNext() {
     return _iterator.moveNext();
   }
 
   E get current => _downcast/*<Node, E>*/(_iterator.current);
 }
 
 // ignore: STRONG_MODE_DOWN_CAST_COMPOSITE
 /*=To*/ _downcast/*<From, To extends From>*/(dynamic /*=From*/ x) => x;