Disentangle header dependecies a bit by moving PropertyDetails-related types into a separate header

tools/gyp/v8.gyp

 # Copyright 2011 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 383 matching lines @@
             '../../src/platform.h',
             '../../src/preparse-data-format.h',
             '../../src/preparse-data.cc',
             '../../src/preparse-data.h',
             '../../src/preparser.cc',
             '../../src/preparser.h',
             '../../src/prettyprinter.cc',
             '../../src/prettyprinter.h',
             '../../src/property.cc',
             '../../src/property.h',
+            '../../src/property-details.h',
             '../../src/profile-generator-inl.h',
             '../../src/profile-generator.cc',
             '../../src/profile-generator.h',
             '../../src/regexp-macro-assembler-irregexp-inl.h',
             '../../src/regexp-macro-assembler-irregexp.cc',
             '../../src/regexp-macro-assembler-irregexp.h',
             '../../src/regexp-macro-assembler-tracer.cc',
             '../../src/regexp-macro-assembler-tracer.h',
             '../../src/regexp-macro-assembler.cc',
             '../../src/regexp-macro-assembler.h',
@@ skipping 485 matching lines @@
             }],
           ],
           'dependencies': [
             'v8'
           ],
         },
       ],
     }],
   ],
 }