Revert of Make DOMWrapperWorld::current() return a reference instead of a pointer

Tools/Scripts/webkitpy/bindings/main.py

 # Copyright (C) 2011 Google Inc.  All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions
 # are met:
 # 1. Redistributions of source code must retain the above copyright
 #    notice, this list of conditions and the following disclaimer.
 # 2. Redistributions in binary form must reproduce the above copyright
 #    notice, this list of conditions and the following disclaimer in the
 #    documentation and/or other materials provided with the distribution.
@@ skipping 36 matching lines @@
 To update the reference files, execute:
     run-bindings-tests --reset-results
 
 If the failures are not due to your changes, test results may be out of sync;
 please rebaseline them in a separate CL, after checking that tests fail in ToT.
 In CL, please set:
 NOTRY=true
 TBR=(someone in Source/bindings/OWNERS or WATCHLISTS:bindings)
 """
 
-DEPENDENCY_IDL_FILES = frozenset([
+DEPENDENCY_IDL_FILES = set([
+    'SupportTestPartialInterface.idl',
     'TestImplements.idl',
     'TestImplements2.idl',
     'TestImplements3.idl',
     'TestPartialInterface.idl',
-    'TestPartialInterface2.idl',
+    'TestPartialInterfacePython.idl',
+    'TestPartialInterfacePython2.idl',
 ])
 
 
 EXTENDED_ATTRIBUTES_FILE = os.path.join(source_path,
                                         'bindings/IDLExtendedAttributes.txt')
 
 test_input_directory = os.path.join(source_path, 'bindings', 'tests', 'idls')
 reference_directory = os.path.join(source_path, 'bindings', 'tests', 'results')
 
 
@@ skipping 131 matching lines @@
 
 
 def run_bindings_tests(reset_results, verbose):
     # Generate output into the reference directory if resetting results, or
     # a temp directory if not.
     if reset_results:
         print 'Resetting results'
         return bindings_tests(reference_directory, verbose)
     with ScopedTempDir() as temp_dir:
         return bindings_tests(temp_dir, verbose)