Factor out snapshot helpers from main.cc.

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': {
     'gen_source_dir': '<(SHARED_INTERMEDIATE_DIR)',
 
     'io_cc_file': '<(gen_source_dir)/io_gen.cc',
     'io_patch_cc_file': '<(gen_source_dir)/io_patch_gen.cc',
@@ skipping 1104 matching lines @@
         'generate_snapshot_file#host',
         'libdart',
         'libdart_builtin',
         'libdart_io',
       ],
       'include_dirs': [
         '..',
         '../../third_party/', # Zlib
       ],
       'sources': [
+        'exit.h',
         'main.cc',
+        'snapshot.h',
+        'snapshot.cc',
         'builtin.h',
         'builtin_common.cc',
         'builtin_natives.cc',
         'builtin_nolib.cc',
         'io_natives.h',
         'vmservice_impl.cc',
         'vmservice_impl.h',
         '<(observatory_assets_cc_file)',
         '<(resources_cc_file)',
         '<(snapshot_cc_file)',
@@ skipping 38 matching lines @@
         'generate_resources_cc_file#host',
         'libdart_builtin',
         'libdart_io',
         'libdart_precompiled_runtime',
       ],
       'include_dirs': [
         '..',
         '../../third_party/', # Zlib
       ],
       'sources': [
+        'exit.h',
         'main.cc',
+        'snapshot.h',
+        'snapshot.cc',
         'builtin.h',
         'builtin_common.cc',
         'builtin_natives.cc',
         'builtin_nolib.cc',
         'io_natives.h',
         'snapshot_empty.cc',
         'vmservice_impl.cc',
         'vmservice_impl.h',
         '<(observatory_assets_cc_file)',
         '<(resources_cc_file)',
@@ skipping 25 matching lines @@
       'dependencies': [
         'generate_resources_cc_file#host',
         'libdart_builtin',
         'libdart_io',
         'libdart_nosnapshot',
       ],
       'include_dirs': [
         '..',
       ],
       'sources': [
+        'exit.h',
         'main.cc',
+        'snapshot.h',
+        'snapshot.cc',
         'builtin.cc',
         'builtin.h',
         'builtin_common.cc',
         'builtin_natives.cc',
         'io_natives.h',
         'observatory_assets_empty.cc',
         'snapshot_empty.cc',
         'vmservice_impl.cc',
         'vmservice_impl.h',
         # Include generated source files.
@@ skipping 156 matching lines @@
         }],
         ['OS=="linux"', {
           'cflags': [
             '-fPIC',
           ],
         }],
       ],
     },
   ],
 }