Separate UnicodeCache out into an own file.

tools/gyp/v8.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 959 matching lines @@
         '../../src/types-inl.h',
         '../../src/types.cc',
         '../../src/types.h',
         '../../src/typing.cc',
         '../../src/typing.h',
         '../../src/unbound-queue-inl.h',
         '../../src/unbound-queue.h',
         '../../src/unicode-inl.h',
         '../../src/unicode.cc',
         '../../src/unicode.h',
+        '../../src/unicode-cache-inl.h',
+        '../../src/unicode-cache.h',
         '../../src/unicode-decoder.cc',
         '../../src/unicode-decoder.h',
         '../../src/unique.h',
         '../../src/utils.cc',
         '../../src/utils.h',
         '../../src/v8.cc',
         '../../src/v8.h',
         '../../src/v8memory.h',
         '../../src/v8threads.cc',
         '../../src/v8threads.h',
@@ skipping 1027 matching lines @@
         }],
         ['want_separate_host_toolset==1', {
           'toolsets': ['host'],
         }, {
           'toolsets': ['target'],
         }],
       ],
     },
   ],
 }