Expand overloaded methods and optional parameters in the html library.

tools/dom/scripts/generator.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.
 
 """This module provides shared functionality for systems to generate
 Dart APIs from the IDL database."""
 
 import copy
 import json
@@ skipping 43 matching lines @@
 def IsCustomType(interface_name):
   return interface_name in _custom_types
 
 _methods_with_named_formals = monitored.Set(
     'generator._methods_with_named_formals', [
   'DirectoryEntry.getDirectory',
   'DirectoryEntry.getFile',
   'Entry.copyTo',
   'Entry.moveTo',
   'HTMLInputElement.setRangeText',
+  'HTMLTextAreaElement.setRangeText',
   'XMLHttpRequest.open',
   ])
 
 #
 # Renames for attributes that have names that are not legal Dart names.
 #
 _dart_attribute_renames = monitored.Dict('generator._dart_attribute_renames', {
     'default': 'defaultValue',
 })
 
@@ skipping 1077 matching lines @@
           type_name, type_data, dart_interface_name, self)
 
     if type_data.clazz == 'BasicTypedList':
       dart_interface_name = self._renamer.RenameInterface(
           self._database.GetInterface(type_name))
       return BasicTypedListIDLTypeInfo(
           type_name, type_data, dart_interface_name, self)
 
     class_name = '%sIDLTypeInfo' % type_data.clazz
     return globals()[class_name](type_name, type_data)