Add a library suitable for libfuzzer with a small unit test runner shell

tools/testrunner/local/execution.py

 # 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 64 matching lines @@
     # different processes.
     suite = testsuite.TestSuite.LoadTestSuite(
         os.path.join(TEST_DIR, root), global_init=False)
     if suite:
       suites[suite.name] = suite
   return ProcessContext(suites, context)
 
 
 def GetCommand(test, context):
   d8testflag = []
-  shell = test.suite.shell()
+  shell = test.shell()
   if shell == "d8":
     d8testflag = ["--test"]
   if utils.IsWindows():
     shell += ".exe"
   if context.random_seed:
     d8testflag += ["--random-seed=%s" % context.random_seed]
   cmd = (context.command_prefix +
          [os.path.abspath(os.path.join(context.shell_dir, shell))] +
          d8testflag +
          test.suite.GetFlagsForTestCase(test, context) +
@@ skipping 268 matching lines @@
     if self.context.verbose:
       print text
       sys.stdout.flush()
 
 
 class BreakNowException(Exception):
   def __init__(self, value):
     self.value = value
   def __str__(self):
     return repr(self.value)