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

tools/run-tests.py

 #!/usr/bin/env python
 #
 # 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
@@ skipping 50 matching lines @@
 # invoked in seperate steps on the bots.
 TEST_MAP = {
   "bot_default": [
     "mjsunit",
     "cctest",
     "webkit",
     "message",
     "preparser",
     "intl",
     "unittests",
+    "parser_fuzzer",

[Michael Achenbach, 2016/01/20 10:47:17]

This list only supports toplevel entries in v8/test/*. E.g. here: "fuzzer". A
nesting feature does not yet exist.

   ],
   "default": [
     "mjsunit",
     "cctest",
     "message",
     "preparser",
     "intl",
     "unittests",
+    "parser_fuzzer",
   ],
   "ignition": [
     "mjsunit",
     "cctest",
   ],
   "optimize_for_size": [
     "mjsunit",
     "cctest",
     "webkit",
     "intl",
@@ skipping 718 matching lines @@
   if exit_code == 1 and options.json_test_results:
     print("Force exit code 0 after failures. Json test results file generated "
           "with failure information.")
     exit_code = 0
 
   return exit_code
 
 
 if __name__ == "__main__":
   sys.exit(Main())