Added ctrl-\ support in dart binary to dump isolate stacks.

runtime/bin/bin.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': {
     'io_cc_file': '<(SHARED_INTERMEDIATE_DIR)/io_gen.cc',
     'io_patch_cc_file': '<(SHARED_INTERMEDIATE_DIR)/io_patch_gen.cc',
     'builtin_in_cc_file': 'builtin_in.cc',
     'builtin_cc_file': '<(SHARED_INTERMEDIATE_DIR)/builtin_gen.cc',
@@ skipping 360 matching lines @@
       'include_dirs': [
         '..',
       ],
       'sources': [
         'main.cc',
         'builtin_nolib.cc',
         'resources.h',
         'vmstats.h',
         'vmstats_impl.cc',
         'vmstats_impl.h',
+        'vmstats_impl_android.cc',
+        'vmstats_impl_linux.cc',
+        'vmstats_impl_macos.cc',
+        'vmstats_impl_win.cc',
         '<(snapshot_cc_file)',
         '<(resources_cc_file)',
       ],
       'conditions': [
         ['OS=="win"', {
           'link_settings': {
             'libraries': [ '-lws2_32.lib', '-lRpcrt4.lib', '-lwinmm.lib' ],
           },
           # Generate an import library on Windows, by exporting a function.
           # Extensions use this import library to link to the API in dart.exe.
@@ skipping 25 matching lines @@
       'include_dirs': [
         '..',
       ],
       'sources': [
         'main.cc',
         'builtin.cc',
         'resources.h',
         'vmstats.h',
         'vmstats_impl.cc',
         'vmstats_impl.h',
+        'vmstats_impl_android.cc',
+        'vmstats_impl_linux.cc',
+        'vmstats_impl_macos.cc',
+        'vmstats_impl_win.cc',
         # Include generated source files.
         '<(builtin_cc_file)',
         '<(io_cc_file)',
         '<(io_patch_cc_file)',
         '<(resources_cc_file)',
         'snapshot_empty.cc',
       ],
       'conditions': [
         ['OS=="win"', {
           'link_settings': {
@@ skipping 102 matching lines @@
         ['OS=="linux"', {
           'cflags': [
             '-fPIC',
           ],
         }],
       ],
     },
   ],
 }