X87: enable the X87 turbofan support.

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
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@@ skipping 622 matching lines @@
 
   # Lead to OOM:
   'string-oom-*': [SKIP],
 
   # Crashes.
   'harmony/private': [SKIP],
   'harmony/symbols': [SKIP],
 }],  # 'arch == nacl_ia32 or arch == nacl_x64'
 
 ##############################################################################
-['arch == x87', {
-  # Currently Turbofan is not supported by x87.
-  'compiler/opt-next-call-turbo': [SKIP],
-}],  # 'arch == x87'
-
-##############################################################################
 ['deopt_fuzzer == True', {
 
   # Skip tests that are not suitable for deoptimization fuzzing.
   'assert-opt-and-deopt': [SKIP],
   'never-optimize': [SKIP],
   'regress/regress-2185-2': [SKIP],
   'harmony/object-observe': [SKIP],
   'readonly': [SKIP],
   'array-feedback': [SKIP],
 
   # Deopting uses just enough memory to make this one OOM.
   'regress/regress-3976': [SKIP],
 
   # Deopt every n garbage collections collides with deopt every n times.
   'regress/regress-2653': [SKIP],
 }],  # 'deopt_fuzzer == True'
 
 ##############################################################################
 ['arch == ppc and simulator_run == True or arch == ppc64 and simulator_run == True', {
 
   # take too long with the simulator.
   'regress/regress-1132': [SKIP],
 }],  # 'arch == ppc and simulator_run == True'
 ]