[inspector] add inspector protocol parser test build target.

src/v8.gyp

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@@ skipping 2295 matching lines @@
             '../tools/js2c.py',
             '<(SHARED_INTERMEDIATE_DIR)/experimental-extras-libraries.cc',
             'EXPERIMENTAL_EXTRAS',
             '<@(v8_experimental_extra_library_files)',
             '--startup_blob', '<@(libraries_experimental_extras_bin_file)',
             '--nojs',
           ],
         },
       ],
     },
+    { 'target_name': 'inspector_protocol',

[Michael Achenbach, 2016/07/26 14:27:45]

Don't think we need this here, maybe rather add this to all.gypi.

Also, inspector_protocol is a static library. Why have this as a standalone
target?

[Yang, 2016/07/27 06:42:25]

Done.

+      'type': 'none',
+      'dependencies': ['<(inspector_gyp_path):inspector_protocol'],
+    },
     {
       'target_name': 'postmortem-metadata',
       'type': 'none',
       'variables': {
         'heapobject_files': [
             'objects.h',
             'objects-inl.h',
         ],
       },
       'actions': [
@@ skipping 55 matching lines @@
       'conditions': [
         ['want_separate_host_toolset==1', {
           'toolsets': ['host'],
         }, {
           'toolsets': ['target'],
         }],
       ],
     },
   ],
 }