Make it possible to run a test only in the standard 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 314 matching lines @@
   for s in suites:
     s.ReadStatusFile(variables)
     s.ReadTestCases(ctx)
     if len(args) > 0:
       s.FilterTestCasesByArgs(args)
     all_tests += s.tests
     s.FilterTestCasesByStatus(options.warn_unused, options.flaky_tests)
     if options.cat:
       verbose.PrintTestSource(s.tests)
       continue
-    variant_flags = s.VariantFlags() or VARIANT_FLAGS
-    s.tests = [ t.CopyAddingFlags(v) for t in s.tests for v in variant_flags ]
+    s.tests = [ t.CopyAddingFlags(v)
+                for t in s.tests
+                for v in s.VariantFlags(t, VARIANT_FLAGS) ]
     s.tests = ShardTests(s.tests, options.shard_count, options.shard_run)
     num_tests += len(s.tests)
     for t in s.tests:
       t.id = test_id
       test_id += 1
 
   if options.cat:
     return 0  # We're done here.
 
   if options.report:
@@ skipping 43 matching lines @@
   except KeyboardInterrupt:
     return 1
 
   if options.time:
     verbose.PrintTestDurations(suites, overall_duration)
   return exit_code
 
 
 if __name__ == "__main__":
   sys.exit(Main())