Properly generate MutationCallback in dart:html.

lib/dom/scripts/dartgenerator.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 generates Dart APIs from the IDL database."""
 
 import emitter
 import idlnode
 import logging
@@ skipping 17 matching lines @@
   """Utilities to generate Dart APIs and corresponding JavaScript."""
 
   def __init__(self):
     self._auxiliary_files = {}
     self._dart_templates_re = re.compile(r'[\w.:]+<([\w\.<>:]+)>')
 
   def _StripModules(self, type_name):
     return type_name.split('::')[-1]
 
   def _IsCompoundType(self, database, type_name):
-    if IsPrimitiveType(type_name):
+    if IsRegisteredType(type_name):
       return True
 
+    if type_name.endswith('?'):
+      return self._IsCompoundType(database, type_name[:-len('?')])
+
     if type_name.endswith('[]'):
       return self._IsCompoundType(database, type_name[:-len('[]')])
 
-    striped_type_name = self._StripModules(type_name)
-    if database.HasInterface(striped_type_name):
+    stripped_type_name = self._StripModules(type_name)
+    if database.HasInterface(stripped_type_name):
       return True
 
     dart_template_match = self._dart_templates_re.match(type_name)
     if dart_template_match:
       # Dart templates
       parent_type_name = type_name[0 : dart_template_match.start(1) - 1]
       sub_type_name = dart_template_match.group(1)
       return (self._IsCompoundType(database, parent_type_name) and
               self._IsCompoundType(database, sub_type_name))
     return False
@@ skipping 280 matching lines @@
         PARAMETERS=constructor_info.ParametersImplementationDeclaration(DartType))
 
   def FinishInterface(self):
     pass
 
   def AddTypedArrayConstructors(self, element_type):
     pass
 
   def AddEventAttributes(self, event_attrs):
     pass