isolates refactor: this change introduces 'dart:isolate' as a library. This is a

runtime/vm/vm.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': {
     'builtin_in_cc_file': '../bin/builtin_in.cc',
     'corelib_cc_file': '<(SHARED_INTERMEDIATE_DIR)/corelib_gen.cc',
     'corelib_impl_cc_file': '<(SHARED_INTERMEDIATE_DIR)/corelib_impl_gen.cc',
+    'isolate_cc_file': '<(SHARED_INTERMEDIATE_DIR)/isolate_gen.cc',
     'snapshot_test_dat_file': '<(SHARED_INTERMEDIATE_DIR)/snapshot_test.dat',
     'snapshot_test_in_dat_file': 'snapshot_test_in.dat',
     'snapshot_test_dart_file': 'snapshot_test.dart',
     'cygwin_dir': '../../third_party/cygwin',
   },
   'targets': [
     {
       'target_name': 'libdart_vm',
       'type': 'static_library',
       'includes': [
@@ skipping 35 matching lines @@
             'libraries': [ '-llibeay32MT.lib' ],
           },
        }]],
     },
     {
       'target_name': 'libdart_lib_withcore',
       'type': 'static_library',
       'dependencies': [
         'generate_corelib_cc_file',
         'generate_corelib_impl_cc_file',
+        'generate_isolate_cc_file',
       ],
       'includes': [
         '../lib/lib_sources.gypi',
         '../lib/lib_impl_sources.gypi',
+        '../lib/isolate_sources.gypi',
       ],
       'sources': [
         'bootstrap.cc',
         # Include generated source files.
         '<(corelib_cc_file)',
         '<(corelib_impl_cc_file)',
+        '<(isolate_cc_file)',
       ],
       'include_dirs': [
         '..',
       ],
     },
     {
       'target_name': 'libdart_lib',
       'type': 'static_library',
       'includes': [
         '../lib/lib_sources.gypi',
         '../lib/lib_impl_sources.gypi',
+        '../lib/isolate_sources.gypi',
       ],
       'sources': [
         'bootstrap_nocorelib.cc',
       ],
       'include_dirs': [
         '..',
       ],
     },
     {
       'target_name': 'generate_corelib_cc_file',
@@ skipping 79 matching lines @@
             '--input_cc', '<(builtin_in_cc_file)',
             '--include', 'vm/bootstrap.h',
             '--var_name', 'dart::Bootstrap::corelib_impl_source_',
             '<@(_sources)',
           ],
           'message': 'Generating ''<(corelib_impl_cc_file)'' file.'
         },
       ]
     },
     {
+      'target_name': 'generate_isolate_cc_file',
+      'type': 'none',
+      'conditions': [
+        ['OS=="win"', {
+          'msvs_cygwin_dirs': ['<(cygwin_dir)'],
+        }],
+      ],
+      'includes': [
+        # Load the runtime implementation sources.
+        '../lib/isolate_sources.gypi',
+      ],
+      'sources/': [
+        # Exclude all .[cc|h] files.
+        # This is only here for reference. Excludes happen after
+        # variable expansion, so the script has to do its own
+        # exclude processing of the sources being passed.
+        ['exclude', '\\.cc|h$'],
+      ],
+      'actions': [
+        {
+          'action_name': 'generate_isolate_cc',
+          'inputs': [
+            '../tools/create_string_literal.py',
+            '<(builtin_in_cc_file)',
+            '<@(_sources)',
+          ],
+          'outputs': [
+            '<(isolate_cc_file)',
+          ],
+          'action': [
+            'python',
+            'tools/create_string_literal.py',
+            '--output', '<(isolate_cc_file)',
+            '--input_cc', '<(builtin_in_cc_file)',
+            '--include', 'vm/bootstrap.h',
+            '--var_name', 'dart::Bootstrap::isolate_source_',
+            '<@(_sources)',
+          ],
+          'message': 'Generating ''<(isolate_cc_file)'' file.'
+        },
+      ]
+    },
+    {
       'target_name': 'generate_snapshot_test_dat_file',
       'type': 'none',
       'conditions': [
         ['OS=="win"', {
           'msvs_cygwin_dirs': ['<(cygwin_dir)'],
         }],
       ],
       'actions': [
         {
           'action_name': 'generate_snapshot_test_dat',
@@ skipping 13 matching lines @@
             '--include', 'INTENTIONALLY_LEFT_BLANK',
             '--var_name', 'INTENTIONALLY_LEFT_BLANK_TOO',
             '<(snapshot_test_dart_file)',
           ],
           'message': 'Generating ''<(snapshot_test_dat_file)'' file.'
         },
       ]
     },
   ]
 }