switch from sample shell to d8 for unit test

test/message/testcfg.py

 # Copyright 2008 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 107 matching lines @@
         file_path = file_prefix + ".js"
         output_path = file_prefix + ".out"
         if not exists(output_path):
           print "Could not find %s" % output_path
           continue
         result.append(MessageTestCase(test, file_path, output_path, mode,
                                       self.context, self))
     return result
 
   def GetBuildRequirements(self):
-    return ['sample', 'sample=shell']
+    return ['d8']
 
   def GetTestStatus(self, sections, defs):
     status_file = join(self.root, 'message.status')
     if exists(status_file):
       test.ReadConfigurationInto(status_file, sections, defs)
 
 
 def GetConfiguration(context, root):
   return MessageTestConfiguration(context, root)