[Interpreter] Prepare switching to new ignition testing variant.

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 237 matching lines @@
   result.add_option("--download-data", help="Download missing test suite data",
                     default=False, action="store_true")
   result.add_option("--download-data-only",
                     help="Download missing test suite data and exit",
                     default=False, action="store_true")
   result.add_option("--extra-flags",
                     help="Additional flags to pass to each test command",
                     default="")
   result.add_option("--ignition", help="Skip tests which don't run in ignition",
                     default=False, action="store_true")
+  result.add_option("--ignition-turbofan",
+                    help="Skip tests which don't run in ignition_turbofan",
+                    default=False, action="store_true")
   result.add_option("--isolates", help="Whether to test isolates",
                     default=False, action="store_true")
   result.add_option("-j", help="The number of parallel tasks to run",
                     default=0, type="int")
   result.add_option("-m", "--mode",
                     help="The test modes in which to run (comma-separated,"
                     " uppercase for ninja and buildbot builds): %s" % MODES.keys(),
                     default="release,debug")
   result.add_option("--no-harness", "--noharness",
                     help="Run without test harness of a given suite",
@@ skipping 445 matching lines @@
                'ppc', 'ppc64'] 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,
     "gcov_coverage": options.gcov_coverage,
     "ignition": options.ignition,
+    "ignition_turbofan": options.ignition_turbofan,
     "isolates": options.isolates,
     "mode": MODES[mode]["status_mode"],
     "no_i18n": options.no_i18n,
     "no_snap": options.no_snap,
     "simulator_run": simulator_run,
     "simulator": utils.UseSimulator(arch),
     "system": utils.GuessOS(),
     "tsan": options.tsan,
     "msan": options.msan,
     "dcheck_always_on": options.dcheck_always_on,
@@ skipping 109 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())