Big merge from experimental to bleeding edge.

runtime/vm/bootstrap.cc

 // 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.
 
 #include "vm/bootstrap.h"
 
 #include "include/dart_api.h"
 
 #include "vm/bootstrap_natives.h"
 #include "vm/compiler.h"
 #include "vm/dart_api_impl.h"
 #include "vm/object.h"
 #include "vm/object_store.h"
 
 namespace dart {
 
 DEFINE_FLAG(bool, print_bootstrap, false, "Print the bootstrap source.");
 
 
 RawScript* Bootstrap::LoadScript(const char* url,
                                  const char* source,
                                  bool patch) {
   return Script::New(String::Handle(String::New(url, Heap::kOld)),
                      String::Handle(String::New(source, Heap::kOld)),
                      patch ? RawScript::kPatchTag : RawScript::kSourceTag);
 }
 
 
+RawScript* Bootstrap::LoadASyncScript(bool patch) {
+  const char* url = patch ? "dart:async-patch" : "dart:async";
+  const char* source = patch ? async_patch_ : async_source_;
+  return LoadScript(url, source, patch);
+}
+
+
 RawScript* Bootstrap::LoadCoreScript(bool patch) {
   // TODO(iposva): Use proper library name.
   const char* url = patch ? "dart:core-patch" : "bootstrap";
   const char* source = patch ? corelib_patch_ : corelib_source_;
   return LoadScript(url, source, patch);
 }
 
 
 RawScript* Bootstrap::LoadCollectionScript(bool patch) {
   const char* url = patch ? "dart:collection-patch" : "dart:collection";
@@ skipping 40 matching lines @@
   const Error& error = Error::Handle(Compiler::Compile(library, script));
   if (error.IsNull()) {
     library.SetLoaded();
   } else {
     library.SetLoadError();
   }
   return error.raw();
 }
 
 }  // namespace dart