fix dom.py

sdk/lib/html/dart2js/html_dart2js.dart

 /// The Dart HTML library.
 library dart.dom.html;
 
 import 'dart:async';
 import 'dart:collection';
 import 'dart:_collection-dev';
 import 'dart:html_common';
 import 'dart:indexed_db';
 import 'dart:isolate';
 import 'dart:json' as json;
@@ skipping 7911 matching lines @@
   Element get single {
     if (length > 1) throw new StateError("More than one element");
     return first;
   }
 }
 
 // TODO(jacobr): this is an inefficient implementation but it is hard to see
 // a better option given that we cannot quite force NodeList to be an
 // ElementList as there are valid cases where a NodeList JavaScript object
 // contains Node objects that are not Elements.
-class _FrozenElementList extends ListBase<Element> {
+class _FrozenElementList<T extends Element> extends ListBase<T> {

[Jennifer Messerly, 2013/04/27 01:06:58]

this was auto-regenerated when I ran ./go.sh

   final List<Node> _nodeList;
 
   _FrozenElementList._wrap(this._nodeList);
 
   int get length => _nodeList.length;
 
   Element operator [](int index) => _nodeList[index];
 
   void operator []=(int index, Element value) {
     throw new UnsupportedError('Cannot modify list');
@@ skipping 10591 matching lines @@
 
   @DomName('HTMLSelectElement.setCustomValidity')
   @DocsEditable
   void setCustomValidity(String error) native;
 
 
   // Override default options, since IE returns SelectElement itself and it
   // does not operate as a List.
   List<OptionElement> get options {
     var options = this.children.where((e) => e is OptionElement).toList();
-    return new UnmodifiableListView<OptionElement>(options);
+    return new UnmodifiableListView(options);
   }
 
   List<OptionElement> get selectedOptions {
     // IE does not change the selected flag for single-selection items.
     if (this.multiple) {
       var options = this.options.where((o) => o.selected).toList();
-      return new UnmodifiableListView<OptionElement>(options);
+      return new UnmodifiableListView(options);
     } else {
       return [this.options[this.selectedIndex]];
     }
   }
 }
 // Copyright (c) 2012, 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.
 
 
@@ skipping 11030 matching lines @@
       _position = nextPosition;
       return true;
     }
     _current = null;
     _position = _array.length;
     return false;
   }
 
   T get current => _current;
 }