Add the ability to disable tests in nosnap mode.

tools/run-deopt-fuzzer.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 355 matching lines @@
 
   # Find available test suites and read test cases from them.
   variables = {
     "arch": arch,
     "asan": options.asan,
     "deopt_fuzzer": True,
     "gc_stress": False,
     "isolates": options.isolates,
     "mode": mode,
     "no_i18n": False,
+    "no_snap": False,
     "simulator": utils.UseSimulator(arch),
     "system": utils.GuessOS(),
   }
   all_tests = []
   num_tests = 0
   test_id = 0
 
   # Remember test case prototypes for the fuzzing phase.
   test_backup = dict((s, []) for s in suites)
 
@@ skipping 80 matching lines @@
       return exit_code
 
   except KeyboardInterrupt:
     return 1
 
   return exit_code
 
 
 if __name__ == "__main__":
   sys.exit(Main())