Get rid of assumptions about ".nexe" extension.

tests/dynamic_code_loading/nacl.scons

Index: tests/dynamic_code_loading/nacl.scons
===================================================================
--- tests/dynamic_code_loading/nacl.scons	(revision 5777)
+++ tests/dynamic_code_loading/nacl.scons	(working copy)
@@ -41,7 +41,7 @@
   prog_env.AddBiasForPNaCl()
   prog_env.Append(LINKFLAGS=['--pnacl-allow-native'])
 
-dynamic_load_test_nexe_name = ('dynamic_load_test_%s.nexe' %
+dynamic_load_test_nexe_name = ('dynamic_load_test_%s' %
                                env.get('TARGET_FULLARCH'))
 dynamic_load_test_nexe = prog_env.ComponentProgram(
     dynamic_load_test_nexe_name,
@@ -57,7 +57,7 @@
         'pthread'])
 env.Publish(dynamic_load_test_nexe_name, 'run', ['dynamic_load_test.nmf'])
 
-dynamic_modify_test_nexe_name = ('dynamic_modify_test_%s.nexe' %
+dynamic_modify_test_nexe_name = ('dynamic_modify_test_%s' %
                                  env.get('TARGET_FULLARCH'))
 dynamic_modify_test_nexe = prog_env.ComponentProgram(
     dynamic_modify_test_nexe_name,
@@ -73,26 +73,28 @@
         'pthread'])
 env.Publish(dynamic_modify_test_nexe_name, 'run', ['dynamic_modify_test.nmf'])
 
-prog_env.ComponentProgram('write_to_dyncode.nexe',
-                          ['write_to_dyncode.c'])
+write_to_dyncode_nexe = prog_env.ComponentProgram('write_to_dyncode',
+                                                  ['write_to_dyncode.c'])
 
-prog_env.ComponentProgram('dyncode_disabled_test.nexe',
-                          ['dyncode_disabled_test.c'],
-                          EXTRA_LIBS=['nacl_dyncode'])
+dyncode_disabled_test_nexe = prog_env.ComponentProgram(
+    'dyncode_disabled_test',
+    ['dyncode_disabled_test.c'],
+    EXTRA_LIBS=['nacl_dyncode'])
 
-prog_env.ComponentProgram('debug_mode_test.nexe',
-                          ['debug_mode_test.c',
-                           template_obj],
-                          EXTRA_LIBS=['nacl_dyncode'])
+debug_mode_test_nexe = prog_env.ComponentProgram('debug_mode_test',
+                                                 ['debug_mode_test.c',
+                                                  template_obj],
+                                                 EXTRA_LIBS=['nacl_dyncode'])
 
-prog_env.ComponentProgram('dyncode_demand_alloc_test.nexe',
-                          ['dyncode_demand_alloc_test.c'],
-                          EXTRA_LIBS=['nacl_dyncode'])
+dyncode_demand_alloc_test_nexe = prog_env.ComponentProgram(
+    'dyncode_demand_alloc_test',
+    ['dyncode_demand_alloc_test.c'],
+    EXTRA_LIBS=['nacl_dyncode'])
 
 tests = [
     prog_env.CommandSelLdrTestNacl(
         'dynamic_load_test.out',
-        command=[dynamic_load_test_nexe],
+        dynamic_load_test_nexe,
         # We need to set this because the test needs to behave
         # differently in the plugin, but the plugin does not provide a
         # way to distinguish itself.  TODO(mseaborn): Fix that.
@@ -101,26 +103,26 @@
         ),
     prog_env.CommandSelLdrTestNacl(
         'write_to_dyncode.out',
-        command=[prog_env.File('write_to_dyncode.nexe')],
+        write_to_dyncode_nexe,
         exit_status='untrusted_segfault',
         stdout_golden=prog_env.File('write_to_dyncode.stdout'),
         ),
     prog_env.CommandSelLdrTestNacl(
         'dyncode_disabled_test.out',
-        command=[prog_env.File('dyncode_disabled_test.nexe')],
+        dyncode_disabled_test_nexe,
         osenv='NACL_DISABLE_DYNAMIC_LOADING=1',
         ),
     prog_env.CommandSelLdrTestNacl(
         'debug_mode_test.out',
+        debug_mode_test_nexe,
         # NOTE: the data we are loading does not pass the validator
         sel_ldr_flags=["-c"],
-        command=[prog_env.File('debug_mode_test.nexe')],
         ),
     # This tests, from untrusted code, that dyncode pages are
     # inaccessible before they are allocated.
     prog_env.CommandSelLdrTestNacl(
         'dyncode_demand_alloc_test.out',
-        command=[prog_env.File('dyncode_demand_alloc_test.nexe')],
+        dyncode_demand_alloc_test_nexe,
         exit_status='untrusted_segfault',
         stdout_golden=prog_env.File('dyncode_demand_alloc_test.stdout'),
         ),
@@ -128,7 +130,7 @@
 if not prog_env.Bit('target_arm'):
   tests.append(prog_env.CommandSelLdrTestNacl(
        'dynamic_modify_test.out',
-       command=[dynamic_modify_test_nexe],
+       dynamic_modify_test_nexe,
        sel_ldr_flags=['-E', 'NACL_SRPC_STANDALONE=1']))
 
 # TODO(kcc): non-standard linking options confuse Valgrind debug info reader.