wasm: hook module dump to run-tests.py

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 339 matching lines @@
                     help="The testsuite name in the JUnit output file",
                     default="v8tests")
   result.add_option("--random-seed", default=0, dest="random_seed", type="int",
                     help="Default seed for initializing random generator")
   result.add_option("--random-seed-stress-count", default=1, type="int",
                     dest="random_seed_stress_count",
                     help="Number of runs with different random seeds")
   result.add_option("--msan",
                     help="Regard test expectations for MSAN",
                     default=False, action="store_true")
+  result.add_option("--dump-wasm-module", dest="dump_wasm_module",
+                    help="dump WASM module bytes",
+                    default=False, action="store_true")
+  result.add_option("--dump-wasm-module-path", dest="dump_wasm_module_path",
+                    help="directory to dump wasm modules to",
+                    default="")
   return result
 
 
 def RandomSeed():
   seed = 0
   while not seed:
     seed = random.SystemRandom().randint(-2147483648, 2147483647)
   return seed
 
 
@@ skipping 318 matching lines @@
                         timeout, options.isolates,
                         options.command_prefix,
                         options.extra_flags,
                         options.no_i18n,
                         options.random_seed,
                         options.no_sorting,
                         options.rerun_failures_count,
                         options.rerun_failures_max,
                         options.predictable,
                         options.no_harness,
+                        options.dump_wasm_module,
+                        options.dump_wasm_module_path,
                         use_perf_data=not options.swarming,
                         sancov_dir=options.sancov_dir)
 
   # TODO(all): Combine "simulator" and "simulator_run".
   simulator_run = not options.dont_skip_simulator_slow_tests and \
       arch in ['arm64', 'arm', 'mipsel', 'mips', 'mips64', 'mips64el', \
                'ppc', 'ppc64'] and \
       ARCH_GUESS and arch != ARCH_GUESS
   # Find available test suites and read test cases from them.
   variables = {
@@ skipping 125 matching lines @@
         "--coverage-dir=%s" % options.sancov_dir])
     except:
       print >> sys.stderr, "Error: Merging sancov files failed."
       exit_code = 1
 
   return exit_code
 
 
 if __name__ == "__main__":
   sys.exit(Main())