Add setAll, insertAll, replaceRange and fillRange.

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 extends ListBase<Element> {
   // Raw Element.
@@ skipping 153 matching lines @@
   dynamic fold(dynamic initialValue,
       dynamic combine(dynamic previousValue, Element element)) {
     return _childElements.fold(initialValue, combine);
   }
 
   void setRange(int start, int end, Iterable<Element> iterable,
                 [int skipCount = 0]) {
     throw new UnimplementedError();
   }
 
+  void replaceRange(int start, int end, Iterable<Element> iterable) {
+    throw new UnimplementedError();
+  }
+
+  void fillRange(int start, int end, [Element fillValue]) {
+    throw new UnimplementedError();
+  }
+
   void remove(Object object) {
     if (object is Element) {
       Element element = object;
       if (identical(element.parentNode, _element)) {
         _element.$dom_removeChild(element);
       }
     }
   }
 
   void removeWhere(bool test(Element element)) {
@@ skipping 30 matching lines @@
     if (index < 0 || index > length) {
       throw new RangeError.range(index, 0, length);
     }
     if (index == length) {
       _element.append(element);
     } else {
       _element.insertBefore(element, this[index]);
     }
   }
 
+  void insertAll(int index, Iterable<Element> iterable) {
+    throw new UnimplementedError();
+  }
+
+  void setAll(int index, Iterable<Element> iterable) {
+    throw new UnimplementedError();
+  }
+
   void clear() {
     // It is unclear if we want to keep non element nodes?
     _element.text = '';
   }
 
   Element removeAt(int index) {
     final result = this[index];
     if (result != null) {
       _element.$dom_removeChild(result);
     }
@@ skipping 727 matching lines @@
   const ScrollAlignment._internal(this._value);
   toString() => 'ScrollAlignment.$_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');
 }