Add back localName and improve toString for Html nodes.

tools/dom/scripts/htmlrenamer.py

 #!/usr/bin/python
 # 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.
 import logging
 import monitored
 import re
 
 html_interface_renames = monitored.Dict('htmlrenamer.html_interface_renames', {
     'CDATASection': 'CDataSection',
@@ skipping 219 matching lines @@
   'MouseEvent.webkitMovementY',
   'MouseEvent.offsetX',
   'MouseEvent.offsetY',
   'MouseEvent.screenX',
   'MouseEvent.screenY',
   'MutationEvent.initMutationEvent',
   'Node.attributes',
   'Node.childNodes',
   'Node.firstChild',
   'Node.lastChild',
-  'Node.localName',
   'Node.namespaceURI',
   'Node.removeChild',
   'Node.replaceChild',
   'Screen.availHeight',
   'Screen.availLeft',
   'Screen.availTop',
   'Screen.availWidth',
   'Storage.clear',
   'Storage.getItem',
   'Storage.key',
@@ skipping 465 matching lines @@
 
     # We're looking for a sequence of letters which start with capital letter
     # then a series of caps and finishes with either the end of the string or
     # a capital letter.
     # The [0-9] check is for names such as 2D or 3D
     # The following test cases should match as:
     #   WebKitCSSFilterValue: WebKit(C)(SS)(F)ilterValue
     #   XPathNSResolver: (X)()(P)ath(N)(S)(R)esolver (no change)
     #   IFrameElement: (I)()(F)rameElement (no change)
     return re.sub(r'([A-Z])([A-Z]{2,})([A-Z]|$)', toLower, name)