Stop using void* types in the dart embedding api.

runtime/lib/isolate.cc

 // Copyright (c) 2011, 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_natives.h"
 
 #include "vm/assert.h"
 #include "vm/class_finalizer.h"
 #include "vm/dart.h"
+#include "vm/dart_api_impl.h"
 #include "vm/dart_entry.h"
 #include "vm/exceptions.h"
 #include "vm/longjump.h"
 #include "vm/object.h"
 #include "vm/object_store.h"
 #include "vm/port.h"
 #include "vm/resolver.h"
 #include "vm/snapshot.h"
 #include "vm/thread.h"
 
@@ skipping 16 matching lines @@
   intptr_t port_id_;
 };
 
 
 static uint8_t* allocator(uint8_t* ptr, intptr_t old_size, intptr_t new_size) {
   void* new_ptr = realloc(reinterpret_cast<void*>(ptr), new_size);
   return reinterpret_cast<uint8_t*>(new_ptr);
 }
 
 
-static void* SerializeObject(const Instance& obj) {
+static uint8_t* SerializeObject(const Instance& obj) {
   uint8_t* result = NULL;
   SnapshotWriter writer(false, &result, &allocator);
   writer.WriteObject(obj.raw());
   writer.FinalizeBuffer();
   return result;
 }
 
 
 static void ProcessUnhandledException(const UnhandledException& uhe) {
   const Instance& exception = Instance::Handle(uhe.exception());
@@ skipping 274 matching lines @@
 DEFINE_NATIVE_ENTRY(ReceivePortImpl_closeInternal, 1) {
   intptr_t id = Smi::CheckedHandle(arguments->At(0)).Value();
   PortMap::ClosePort(id);
 }
 
 
 DEFINE_NATIVE_ENTRY(SendPortImpl_sendInternal_, 3) {
   intptr_t send_id = Smi::CheckedHandle(arguments->At(0)).Value();
   intptr_t reply_id = Smi::CheckedHandle(arguments->At(1)).Value();
   // TODO(iposva): Allow for arbitrary messages to be sent.
-  void* data = SerializeObject(Instance::CheckedHandle(arguments->At(2)));
+  uint8_t* data = SerializeObject(Instance::CheckedHandle(arguments->At(2)));
 
   // TODO(turnidge): Throw an exception when the return value is false?
-  PortMap::PostMessage(send_id, reply_id, data);
+  PortMap::PostMessage(send_id, reply_id, Api::CastMessage(data));
 }
 
 }  // namespace dart