Fuchsia: Build standalone VM. Make it run "Hello, World!".

runtime/bin/vmservice_impl.cc

 // Copyright (c) 2013, 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.
 
 #include "bin/vmservice_impl.h"
 
 #include "include/dart_api.h"
 
 #include "bin/builtin.h"
 #include "bin/dartutils.h"
@@ skipping 238 matching lines @@
   // Are we running on Windows?
 #if defined(TARGET_OS_WINDOWS)
   Dart_Handle is_windows = Dart_True();
 #else
   Dart_Handle is_windows = Dart_False();
 #endif
   result =
       Dart_SetField(library, DartUtils::NewString("_isWindows"), is_windows);
   SHUTDOWN_ON_ERROR(result);
 
+  // Are we running on Fuchsia?
+#if defined(TARGET_OS_FUCHSIA)
+  Dart_Handle is_fuchsia = Dart_True();
+#else
+  Dart_Handle is_fuchsia = Dart_False();
+#endif
+  result =
+      Dart_SetField(library, DartUtils::NewString("_isFuchsia"), is_fuchsia);
+  SHUTDOWN_ON_ERROR(result);
+
   // Get _getWatchSignalInternal from dart:io.
   Dart_Handle dart_io_str = Dart_NewStringFromCString(DartUtils::kIOLibURL);
   SHUTDOWN_ON_ERROR(dart_io_str);
   Dart_Handle io_lib = Dart_LookupLibrary(dart_io_str);
   SHUTDOWN_ON_ERROR(io_lib);
   Dart_Handle function_name =
       Dart_NewStringFromCString("_getWatchSignalInternal");
   SHUTDOWN_ON_ERROR(function_name);
   Dart_Handle signal_watch = Dart_Invoke(io_lib, function_name, 0, NULL);
   SHUTDOWN_ON_ERROR(signal_watch);
@@ skipping 88 matching lines @@
   Dart_Handle source = GetSource(url_string);
   if (Dart_IsError(source)) {
     return source;
   }
   return Dart_LoadSource(library, url, source, 0, 0);
 }
 
 
 }  // namespace bin
 }  // namespace dart