[test-runner] Add dedicated test mode for tryserver.

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 94 matching lines @@
     "execution_mode": "debug",
     "output_folder": "optdebug",
   },
   "release": {
     "flags": RELEASE_FLAGS,
     "timeout_scalefactor": 1,
     "status_mode": "release",
     "execution_mode": "release",
     "output_folder": "release",
   },
+  # Normal trybot release configuration. There, dchecks are always on which
+  # implies debug is set. Hence, the status file needs to assume debug-like
+  # behavior/timeouts.
+  "tryrelease": {
+    "flags": RELEASE_FLAGS,
+    "timeout_scalefactor": 1,
+    "status_mode": "debug",
+    "execution_mode": "release",
+    "output_folder": "release",
+  },
   # This mode requires v8 to be compiled with dchecks and slow dchecks.
-  "tryrelease": {
+  "slowrelease": {
     "flags": RELEASE_FLAGS + ["--enable-slow-asserts"],
     "timeout_scalefactor": 2,
     "status_mode": "debug",
     "execution_mode": "release",
     "output_folder": "release",
   },
 }
 
 GC_STRESS_FLAGS = ["--gc-interval=500", "--stress-compaction",
                    "--concurrent-recompilation-queue-length=64",
@@ skipping 500 matching lines @@
   exit_code = runner.Run(options.j)
   overall_duration = time.time() - start_time
 
   if options.time:
     verbose.PrintTestDurations(suites, overall_duration)
   return exit_code
 
 
 if __name__ == "__main__":
   sys.exit(Main())