Get rid of assumptions about ".nexe" extension.

tests/multiple_sandboxes/nacl.scons

 # -*- python -*-
 # Copyright 2011 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')
 
 if 'TRUSTED_ENV' not in env:
   Return()
 trusted_env = env['TRUSTED_ENV']
@@ skipping 25 matching lines @@
                 'nacl_perf_counter',
                 'nacl_base',
                 'imc',
                 'container',
                 'platform',
                 'platform_qual_lib',
                 'gio',
                 ] + VALIDATOR_LIBS + DEBUG_LIBS)
 
 test_prog = env.ComponentProgram(
-    'multidomain_test_guest.nexe', ['multidomain_test_guest.c'],
+    'multidomain_test_guest', ['multidomain_test_guest.c'],
     EXTRA_LIBS=['imc_syscalls'])
 
 node = env.CommandTest('multidomain_test.out', [runner, test_prog],
                        stdout_golden=env.File('multidomain_test.stdout'))
 
 # This test does not work everywhere:
 #  * NaCl's ARM sandbox does not support multiple sandboxes per
 #    process, so this test is disabled for ARM.
 #  * This test currently fails on Mac because service_runtime tries to
 #    enable the Mac outer sandbox twice, which does not work.
 #  * We disable this on Windows because the test has failed
 #    non-deterministically on the Buildbots "xp-bare-m32-n32-opt",
 #    "xp-m32-n32-opt", "win7-bare-m32-n32-op" and
 #    "win7-bare-m64-n64-opt".
 #  * multidomain_test_host assumes it is given a statically linked
 #    executable.  Furthermore, statically-linked nacl-glibc does not
 #    work here because of validation failures which require stubout
 #    mode.
 is_broken = (env.Bit('build_arm')
              or env.Bit('host_mac')
              or env.Bit('host_windows')
              or env.Bit('nacl_glibc'))
 
 env.AddNodeToTestSuite(node, ['small_tests'], 'run_multidomain_test',
                        is_broken=is_broken)