Deprecate query and queryAll, also add back querySelector and querySelectorAll.

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;
 
 class _ChildrenElementList extends ListBase<Element> {
   // Raw Element.
   final Element _element;
   final HtmlCollection _childElements;
@@ skipping 560 matching lines @@
     children.clear();
     children.addAll(copy);
   }
 
   /**
    * Finds all descendent elements of this element that match the specified
    * group of selectors.
    *
    * [selectors] should be a string using CSS selector syntax.
    *
-   *     var items = element.query('.itemClassName');
+   *     var items = element.querySelectorAll('.itemClassName');
    */
-  ElementList queryAll(String selectors) =>
+  @DomName('Element.querySelectorAll')
+  ElementList querySelectorAll(String selectors) =>
     new _FrozenElementList._wrap(_querySelectorAll(selectors));
 
+  /** 
+   * Alias for [querySelector]. Note this function is deprecated because its
+   * semantics will be changing in the future.
+   */
+  @deprecated
+  @DomName('Element.querySelector')
+  @Experimental()
+  Element query(String relativeSelectors) => querySelector(relativeSelectors);
+
+  /** 
+   * Alias for [querySelectorAll]. Note this function is deprecated because its
+   * semantics will be changing in the future.
+   */
+  @deprecated
+  @DomName('Element.querySelectorAll')
+  @Experimental()
+  ElementList queryAll(String relativeSelectors) =>
+      querySelectorAll(relativeSelectors);
+
   /**
    * The set of CSS classes applied to this element.
    *
    * This set makes it easy to add, remove or toggle the classes applied to
    * this element.
    *
    *     element.classes.add('selected');
    *     element.classes.toggle('isOnline');
    *     element.classes.remove('selected');
    */
@@ skipping 802 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');
 }