Modify vm code base so that it can be built for --arch=simmips.

tools/gyp/configurations.gypi

 # Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 {
   'variables': {
     'common_gcc_warning_flags': [
       '-Wall',
       '-Wextra', # Also known as -W.
       '-Wno-unused-parameter',
@@ skipping 96 matching lines @@
         # Should not inherit from Dart_Debug because Dart_simarm_Base defines
         # the optimization level to be -O3, as the simulator runs too slow
         # otherwise.
         'inherit_from': ['Dart_Base', 'Dart_simarm_Base'],
         'defines': [
           'DEBUG',
         ],
       },
 
       'ReleaseSIMARM': {
-        # Should not inherit from Dart_Release (see DebugSIMARM).
-        'inherit_from': ['Dart_Base', 'Dart_simarm_Base'],
-        'defines': [
-          'NDEBUG',
-        ],
+        'inherit_from': ['Dart_Base', 'Dart_simarm_Base', 'Dart_Release'],
       },
 
       'DebugARM': {
         'inherit_from': ['Dart_Base', 'Dart_arm_Base', 'Dart_Debug'],
       },
 
       'ReleaseARM': {
         'inherit_from': ['Dart_Base', 'Dart_arm_Base', 'Dart_Release'],
       },
 
       'DebugSIMMIPS': {
         # Should not inherit from Dart_Debug because Dart_simmips_Base defines
         # the optimization level to be -O3, as the simulator runs too slow
         # otherwise.
         'inherit_from': ['Dart_Base', 'Dart_simmips_Base'],
         'defines': [
           'DEBUG',
         ],
       },
 
       'ReleaseSIMMIPS': {
-        # Should not inherit from Dart_Release (see DebugSIMMIPS).
-        'inherit_from': ['Dart_Base', 'Dart_simmips_Base'],
-        'defines': [
-          'NDEBUG',
-        ],
+        'inherit_from': ['Dart_Base', 'Dart_simmips_Base', 'Dart_Release'],
       },
 
       'DebugMIPS': {
         'inherit_from': ['Dart_Base', 'Dart_mips_Base', 'Dart_Debug'],
       },
 
       'ReleaseMIPS': {
         'inherit_from': ['Dart_Base', 'Dart_mips_Base', 'Dart_Release'],
       },
 
       # These targets assume that target_arch is passed in explicitly
       # by the containing project (e.g., chromium).
       'Debug': {
         'inherit_from': ['Debug<(dart_target_arch)']
       },
 
       'Release': {
         'inherit_from': ['Release<(dart_target_arch)']
       },
     },
   },
 }