Add fast-variants feature to test driver.

test/mjsunit/mjsunit.status

 # 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 13 matching lines @@
 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 [
 [ALWAYS, {
   # All tests in the bug directory are expected to fail.
   'bugs/*': [FAIL],
 
   ##############################################################################
-  # Slow tests.
-  'asm/embenchen/box2d': [PASS, SLOW],
-  'asm/embenchen/lua_binarytrees': [PASS, SLOW],
-
-  ##############################################################################
   # Flaky tests.
   # BUG(v8:2921).
   'debug-step-4-in-frame': [PASS, FAIL, SLOW],
 
   ##############################################################################
   # Fails.
   'regress/regress-1119': [FAIL],
 
   # Issue 1719: Slow to collect arrays over several contexts.
   'regress/regress-524': [SKIP],
@@ skipping 149 matching lines @@
   # BUG(v8:2989). PASS/FAIL on linux32 because crankshaft is turned off for
   # nosse2. Also for arm novfp3.
   'regress/regress-2989': [FAIL, NO_VARIANTS, ['system == linux and arch == x87 or arch == arm and simulator == True', PASS]],
 
   # Skip endain dependent test for mips due to different typed views of the same
   # array buffer.
   'nans': [PASS, ],
 
   # This test variant makes only sense on arm.
   'math-floor-of-div-nosudiv': [PASS, SLOW, ['arch not in [arm, arm64, android_arm, android_arm64]', SKIP]],
+
+  # Too slow for slow variants.
+  'asm/embenchen/*': [PASS, FAST_VARIANTS]
 }],  # ALWAYS
 
 ##############################################################################
 ['gc_stress == True', {
   # Skip tests not suitable for GC stress.
   'allocation-site-info': [SKIP],
   'array-constructor-feedback': [SKIP],
   'array-feedback': [SKIP],
   'array-literal-feedback': [SKIP],
   'd8-performance-now': [SKIP],
@@ skipping 351 matching lines @@
   'never-optimize': [SKIP],
   'regress/regress-2185-2': [SKIP],
   'harmony/object-observe': [SKIP],
   'readonly': [SKIP],
   'array-feedback': [SKIP],
 
   # Deopt every n garbage collections collides with deopt every n times.
   'regress/regress-2653': [SKIP],
 }],  # 'deopt_fuzzer == True'
 ]