Fix Xcode build (js2c.py changed)

tools/js2c.py

 #!/usr/bin/env python
 #
 # Copyright 2006-2008 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
@@ skipping 331 matching lines @@
       'get_index_cases': "".join(get_index_cases),
       'get_script_source_cases': "".join(get_script_source_cases),
       'get_script_name_cases': "".join(get_script_name_cases),
       'type': env['TYPE']
     })
     output.close()
 
 def main():
   natives = sys.argv[1]
   natives_empty = sys.argv[2]
-  source_files = sys.argv[3:]
-  JS2C(source_files, [natives, natives_empty], None)
+  type = sys.argv[3]
+  source_files = sys.argv[4:]
+  JS2C(source_files, [natives, natives_empty], { 'TYPE': type })
 
 if __name__ == "__main__":
   main()