Moved most of html lib generating scripts into tools.

tools/dom/scripts/idlnode_test.py

 #!/usr/bin/python
 # 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.
 
 import idlnode
 import idlparser
 import logging.config
 import sys
 import unittest
@@ skipping 127 matching lines @@
   def test_inheritance(self):
     self._run_test(
       None,
       'interface Shape {}; interface Rectangle : Shape {}; interface Square : Rectangle, Shape {};',
       {'interfaces': [{'javascript_binding_name': 'Shape', 'doc_js_name': 'Shape', 'id': 'Shape'}, {'javascript_binding_name': 'Rectangle', 'doc_js_name': 'Rectangle', 'parents': [{'type': {'id': 'Shape'}}], 'id': 'Rectangle'}, {'javascript_binding_name': 'Square', 'doc_js_name': 'Square', 'parents': [{'type': {'id': 'Rectangle'}}, {'type': {'id': 'Shape'}}], 'id': 'Square'}]})
 
 if __name__ == "__main__":
   logging.config.fileConfig("logging.conf")
   if __name__ == '__main__':
     unittest.main()