Mac x86_64: Mach exception support

tests/trusted_crash/osx_crash_forwarding/nacl.scons

 # -*- python -*-
 # Copyright 2012 The Native Client Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 Import('env')
 
 
-# This tests an interface that is specific to Mac OS X and/or Mach and
-# that is only implemented for x86-32.
-if not env.Bit('host_mac') or not env.Bit('build_x86_32'):
+# This tests an interface that is specific to Mac OS X and/or Mach.
+if not env.Bit('host_mac'):
   Return()
 
 # These tests use nexes built by other tests. Nexes do not get staged in
 # pexe mode, so only run this test in nonpexe mode.
 if env.Bit('pnacl_generate_pexe'):
   Return()
 
 if 'TRUSTED_ENV' not in env:
   Return()
 trusted_env = env['TRUSTED_ENV']
@@ skipping 43 matching lines @@
                        declares_exit_status=True)
 env.AddNodeToTestSuite(node, test_suites,
                        'run_mach_unforwarded_trusted_crash_test',
                        is_broken=is_broken)
 
 node = env.CommandTest('mach_forward_early_trusted_crash_test.out',
                        [runner, 'early_trusted'], declares_exit_status=True)
 env.AddNodeToTestSuite(node, test_suites,
                        'run_mach_forward_early_trusted_crash_test',
                        is_broken=is_broken)