Make test runner more flexible for running fast tests.

tools/testrunner/local/statusfile.py

 # 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
 #       copyright notice, this list of conditions and the following
 #       disclaimer in the documentation and/or other materials provided
@@ skipping 41 matching lines @@
 
 # Support arches, modes to be written as keywords instead of strings.
 VARIABLES = {ALWAYS: True}
 for var in ["debug", "release", "android_arm", "android_ia32", "arm", "ia32",
             "mipsel", "x64", "nacl_ia32", "nacl_x64", "macos", "windows",
             "linux"]:
   VARIABLES[var] = var
 
 
 def DoSkip(outcomes):
-  return SKIP in outcomes or SLOW in outcomes
+  return SKIP in outcomes
+
+
+def IsSlow(outcomes):
+  return SLOW in outcomes
 
 
 def OnlyStandardVariant(outcomes):
   return NO_VARIANTS in outcomes
 
 
 def IsFlaky(outcomes):
   return FLAKY in outcomes
 
 
@@ skipping 54 matching lines @@
     if not eval(section[0], variables): continue
     section = section[1]
     assert type(section) == dict
     for rule in section:
       assert type(rule) == str
       if rule[-1] == '*':
         _ParseOutcomeList(rule, section[rule], wildcards, variables)
       else:
         _ParseOutcomeList(rule, section[rule], rules, variables)
   return rules, wildcards