Fixing up a number of go.sh warnings

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 1427 matching lines @@
         suppress_interface=True),
     'EntryArraySync': TypeData(clazz='Interface', item_type='EntrySync',
         suppress_interface=True),
     'FileList': TypeData(clazz='Interface', item_type='File',
         dart_type='List<File>'),
     'Future': TypeData(clazz='Interface', dart_type='Future'),
     'GamepadList': TypeData(clazz='Interface', item_type='Gamepad',
         suppress_interface=True),
     'HTMLAllCollection': TypeData(clazz='Interface', item_type='Node'),
     'HTMLCollection': TypeData(clazz='Interface', item_type='Node'),
-    'MediaStreamList': TypeData(clazz='Interface',
-        item_type='MediaStream', suppress_interface=True),
     'NamedNodeMap': TypeData(clazz='Interface', item_type='Node'),
     'NodeList': TypeData(clazz='Interface', item_type='Node',
                          suppress_interface=False, dart_type='List<Node>'),
     'SVGElementInstanceList': TypeData(clazz='Interface',
         item_type='SVGElementInstance', suppress_interface=True),
     'SourceBufferList': TypeData(clazz='Interface', item_type='SourceBuffer'),
     'SpeechGrammarList': TypeData(clazz='Interface', item_type='SpeechGrammar'),
     'SpeechInputResultList': TypeData(clazz='Interface',
         item_type='SpeechInputResult', suppress_interface=True),
     'SpeechRecognitionResultList': TypeData(clazz='Interface',
@@ skipping 102 matching lines @@
                                   self)
 
     if type_data.clazz == 'SVGTearOff':
       dart_interface_name = self._renamer.RenameInterface(
           self._database.GetInterface(type_name))
       return SVGTearOffIDLTypeInfo(
           type_name, type_data, dart_interface_name, self)
 
     class_name = '%sIDLTypeInfo' % type_data.clazz
     return globals()[class_name](type_name, type_data)