Split out libplatform into a separate libary

test/cctest/cctest.gyp

 # Copyright 2012 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
 #       copyright notice, this list of conditions and the following
 #       disclaimer in the documentation and/or other materials provided
@@ skipping 19 matching lines @@
     'v8_code': 1,
     'generated_file': '<(SHARED_INTERMEDIATE_DIR)/resources.cc',
   },
   'includes': ['../../build/toolchain.gypi', '../../build/features.gypi'],
   'targets': [
     {
       'target_name': 'cctest',
       'type': 'executable',
       'dependencies': [
         'resources',
+        '../../tools/gyp/v8.gyp:v8_libplatform',
       ],
       'include_dirs': [
         '../..',
       ],
       'sources': [  ### gcmole(all) ###
         '<(generated_file)',
         'cctest.cc',
         'gay-fixed.cc',
         'gay-precision.cc',
         'gay-shortest.cc',
@@ skipping 208 matching lines @@
             '<@(_outputs)',
             'TEST',  # type
             'off',  # compression
             '<@(file_list)',
           ],
         }
       ],
     },
   ],
 }