Fixing a number of Dart2JS compiler 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 473 matching lines @@
     'DOMWindow get':
       Conversion('_convertNativeToDart_Window', 'dynamic', 'WindowBase'),
     'EventTarget get':
       Conversion('_convertNativeToDart_EventTarget', 'dynamic',
                  'EventTarget'),
     'EventTarget set':
       Conversion('_convertDartToNative_EventTarget', 'EventTarget',
                  'dynamic'),
 
     'ImageData get':
-      Conversion('_convertNativeToDart_ImageData', 'dynamic', 'ImageData'),
+      Conversion('convertNativeToDart_ImageData', 'dynamic', 'ImageData'),
     'ImageData set':
-      Conversion('_convertDartToNative_ImageData', 'ImageData', 'dynamic'),
+      Conversion('convertDartToNative_ImageData', 'ImageData', 'dynamic'),
 
     'Dictionary get':
       Conversion('convertNativeToDart_Dictionary', 'dynamic', 'Map'),
     'Dictionary set':
       Conversion('convertDartToNative_Dictionary', 'Map', 'dynamic'),
 
     'sequence<DOMString> set':
       Conversion('convertDartToNative_StringArray', 'List<String>', 'List'),
 
     'any set IDBObjectStore.add': _serialize_SSV,
     'any set IDBObjectStore.put': _serialize_SSV,
     'any set IDBCursor.update': _serialize_SSV,
 
     # postMessage
     'any set MessagePort.postMessage': _serialize_SSV,
     'SerializedScriptValue set DOMWindow.postMessage': _serialize_SSV,
 
     # receiving message via MessageEvent
     '* get MessageEvent.data':
       Conversion('convertNativeToDart_SerializedScriptValue',
                  'dynamic', 'dynamic'),
 
     '* get History.state':
-      Conversion('_convertNativeToDart_SerializedScriptValue',
+      Conversion('convertNativeToDart_SerializedScriptValue',
                  'dynamic', 'dynamic'),
 
     '* get PopStateEvent.state':
       Conversion('convertNativeToDart_SerializedScriptValue',
                  'dynamic', 'dynamic'),
 
     # IDBAny is problematic.  Some uses are just a union of other IDB types,
     # which need no conversion..  Others include data values which require
     # serialized script value processing.
     '* get IDBCursorWithValue.value':
@@ skipping 610 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)