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

runtime/lib/isolate.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 "platform/assert.h"
 #include "vm/bootstrap_natives.h"
 #include "vm/class_finalizer.h"
 #include "vm/dart.h"
 #include "vm/dart_api_impl.h"
 #include "vm/dart_entry.h"
@@ skipping 65 matching lines @@
   name ^= String::NewSymbol(class_name);
   str ^= String::Concat(str, name);
   GrowableArray<const Object*> arguments(1);
   arguments.Add(&str);
   Exceptions::ThrowByType(type, arguments);
 }
 
 
 // TODO(turnidge): Move to DartLibraryCalls.
 RawObject* ReceivePortCreate(intptr_t port_id) {
+  Library& isolate_lib = Library::Handle(Library::IsolateLibrary());
+  ASSERT(!isolate_lib.IsNull());
   const String& class_name =
-      String::Handle(String::NewSymbol("ReceivePortImpl"));
+      String::Handle(isolate_lib.PrivateName("_ReceivePortImpl"));
   const String& function_name =
       String::Handle(String::NewSymbol("_get_or_create"));
   const int kNumArguments = 1;
   const Array& kNoArgumentNames = Array::Handle();
   const Function& function = Function::Handle(
-      Resolver::ResolveStatic(Library::Handle(Library::CoreLibrary()),
+      Resolver::ResolveStatic(isolate_lib,
                               class_name,
                               function_name,
                               kNumArguments,
                               kNoArgumentNames,
                               Resolver::kIsQualified));
   GrowableArray<const Object*> arguments(kNumArguments);
   arguments.Add(&Integer::Handle(Integer::New(port_id)));
   const Object& result = Object::Handle(
       DartEntry::InvokeStatic(function, arguments, kNoArgumentNames));
   if (!result.IsError()) {
     PortMap::SetLive(port_id);
   }
   return result.raw();
 }
 
 
 // TODO(turnidge): Move to DartLibraryCalls.
 static RawObject* SendPortCreate(intptr_t port_id) {
-  const String& class_name = String::Handle(String::NewSymbol("SendPortImpl"));
+  Library& isolate_lib = Library::Handle(Library::IsolateLibrary());
+  ASSERT(!isolate_lib.IsNull());
+  const String& class_name =
+      String::Handle(isolate_lib.PrivateName("_SendPortImpl"));
   const String& function_name = String::Handle(String::NewSymbol("_create"));
   const int kNumArguments = 1;
   const Array& kNoArgumentNames = Array::Handle();
   const Function& function = Function::Handle(
-      Resolver::ResolveStatic(Library::Handle(Library::CoreLibrary()),
+      Resolver::ResolveStatic(isolate_lib,
                               class_name,
                               function_name,
                               kNumArguments,
                               kNoArgumentNames,
                               Resolver::kIsQualified));
   GrowableArray<const Object*> arguments(kNumArguments);
   arguments.Add(&Integer::Handle(Integer::New(port_id)));
   const Object& result = Object::Handle(
       DartEntry::InvokeStatic(function, arguments, kNoArgumentNames));
   return result.raw();
@@ skipping 240 matching lines @@
   intptr_t reply_id = Smi::CheckedHandle(arguments->At(1)).Value();
   // TODO(iposva): Allow for arbitrary messages to be sent.
   uint8_t* data = SerializeObject(Instance::CheckedHandle(arguments->At(2)));
 
   // TODO(turnidge): Throw an exception when the return value is false?
   PortMap::PostMessage(new Message(
       send_id, reply_id, data, Message::kNormalPriority));
 }
 
 }  // namespace dart