Add the ability to disable tests in nosnap mode.

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 131 matching lines @@
   result.add_option("--no-i18n", "--noi18n",
                     help="Skip internationalization tests",
                     default=False, action="store_true")
   result.add_option("--no-network", "--nonetwork",
                     help="Don't distribute tests on the network",
                     default=(utils.GuessOS() != "linux"),
                     dest="no_network", action="store_true")
   result.add_option("--no-presubmit", "--nopresubmit",
                     help='Skip presubmit checks',
                     default=False, dest="no_presubmit", action="store_true")
+  result.add_option("--no-snap", "--nosnap",
+                    help='Test a build compiled without snapshot.',
+                    default=False, dest="no_snap", action="store_true")
   result.add_option("--no-stress", "--nostress",
                     help="Don't run crankshaft --always-opt --stress-op test",
                     default=False, dest="no_stress", action="store_true")
   result.add_option("--no-variants", "--novariants",
                     help="Don't run any testing variants",
                     default=False, dest="no_variants", action="store_true")
   result.add_option("--variants",
                     help="Comma-separated list of testing variants")
   result.add_option("--outdir", help="Base directory with compile output",
                     default="out")
@@ skipping 238 matching lines @@
       arch in ['arm64', 'arm', 'mips'] and ARCH_GUESS and arch != ARCH_GUESS
   # Find available test suites and read test cases from them.
   variables = {
     "arch": arch,
     "asan": options.asan,
     "deopt_fuzzer": False,
     "gc_stress": options.gc_stress,
     "isolates": options.isolates,
     "mode": mode,
     "no_i18n": options.no_i18n,
+    "no_snap": options.no_snap,
     "simulator_run": simulator_run,
     "simulator": utils.UseSimulator(arch),
     "system": utils.GuessOS(),
   }
   all_tests = []
   num_tests = 0
   test_id = 0
   for s in suites:
     s.ReadStatusFile(variables)
     s.ReadTestCases(ctx)
@@ skipping 65 matching lines @@
   except KeyboardInterrupt:
     raise
 
   if options.time:
     verbose.PrintTestDurations(suites, overall_duration)
   return exit_code
 
 
 if __name__ == "__main__":
   sys.exit(Main())