Add List.reversed to give a reverse fixed-length view of a list.

sdk/lib/html/html_common/filtered_element_list.dart

 // Copyright (c) 2011, 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 html_common;
 
 /**
  * An indexable collection of a node's descendants in the document tree,
  * filtered so that only elements are in the collection.
  */
@@ skipping 51 matching lines @@
   }
 
   void addLast(Element value) {
     add(value);
   }
 
   bool contains(Element element) {
     return element is Element && _childNodes.contains(element);
   }
 
+  List<E> get reversed => new ReversedListView<E>(_filtered, 0, null);
+
   void sort([int compare(Element a, Element b)]) {
     throw new UnsupportedError('TODO(jacobr): should we impl?');
   }
 
   void setRange(int start, int rangeLength, List from, [int startFrom = 0]) {
     throw new UnimplementedError();
   }
 
   void removeRange(int start, int rangeLength) {
     _filtered.getRange(start, rangeLength).forEach((el) => el.remove());
@@ skipping 113 matching lines @@
   Element get first => _filtered.first;
 
   Element get last => _filtered.last;
 
   Element get single => _filtered.single;
 
   Element min([int compare(Element a, Element b)]) => _filtered.min(compare);
 
   Element max([int compare(Element a, Element b)]) => _filtered.max(compare);
 }