Split out tests of private scripts from Internals to PrivateScriptTest

Source/core/core_generated.gyp

 #
 # Copyright (C) 2013 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:
 #
 #     * 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 150 matching lines @@
             'action': [
               'python',
               '../build/scripts/make_private_script_source.py',
               '<@(_outputs)',
               '<@(_private_script_files)'
             ],
         },
         {
           'action_name': 'generatePrivateScriptForTesting',
            'private_script_files': [
-              'testing/Internals.js',
+              'testing/PrivateScriptTest.js',
            ],
            'inputs': [
               '../build/scripts/make_private_script_source.py',
               '<@(_private_script_files)',
             ],
             'outputs': [
               '<(blink_core_output_dir)/PrivateScriptSourcesForTesting.h',
             ],
             'action': [
               'python',
@@ skipping 675 matching lines @@
             '../build/scripts/rule_bison.py',
             '<(RULE_INPUT_PATH)',
             '<(blink_core_output_dir)',
             '<(bison_exe)',
           ],
         },
       ],
     },
   ],
 }