Remove addLast from List.

tools/dom/templates/html/impl/impl_Element.darttemplate

 // 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.
 
 part of $LIBRARYNAME;
 
 // TODO(jacobr): use _Lists.dart to remove some of the duplicated
 // functionality.
 class _ChildrenElementList implements List {
   // Raw Element.
@@ skipping 119 matching lines @@
   void set length(int newLength) {
     // TODO(jacobr): remove children when length is reduced.
     throw new UnsupportedError('');
   }
 
   Element add(Element value) {
     _element.append(value);
     return value;
   }
 
-  Element addLast(Element value) => add(value);
-
   Iterator<Element> get iterator => toList().iterator;
 
   void addAll(Iterable<Element> iterable) {
     if (iterable is _ChildNodeListLazy) {
       iterable = new List.from(iterable);
     }
 
     for (Element element in iterable) {
       _element.append(element);
     }
@@ skipping 232 matching lines @@
   }
 
   void set length(int newLength) {
     _nodeList.length = newLength;
   }
 
   void add(Element value) {
     throw new UnsupportedError('');
   }
 
-  void addLast(Element value) {
-    throw new UnsupportedError('');
-  }
-
   Iterator<Element> get iterator => new _FrozenElementListIterator(this);
 
   void addAll(Iterable<Element> iterable) {
     throw new UnsupportedError('');
   }
 
   Iterable<Element> get reversed {
     return IterableMixinWorkaround.reversedList(this);
   }
 
@@ skipping 719 matching lines @@
   const ScrollAlignment._internal(this._value);
   toString() => 'ScrollAlignment.$_value';
 
   /// Attempt to align the element to the top of the scrollable area.
   static const TOP = const ScrollAlignment._internal('TOP');
   /// Attempt to center the element in the scrollable area.
   static const CENTER = const ScrollAlignment._internal('CENTER');
   /// Attempt to align the element to the bottom of the scrollable area.
   static const BOTTOM = const ScrollAlignment._internal('BOTTOM');
 }