- Address warnings about 64-bit to 32-bit conversions.

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 25 matching lines @@
 };
 
 
 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);
 }
 
 
 // TODO(turnidge): Move to DartLibraryCalls.
-static RawObject* ReceivePortCreate(intptr_t port_id) {
+static RawObject* ReceivePortCreate(Dart_Port port_id) {
   Isolate* isolate = Isolate::Current();
   Function& func =
       Function::Handle(isolate,
                        isolate->object_store()->receive_port_create_function());
   const int kNumArguments = 1;
   if (func.IsNull()) {
     Library& isolate_lib = Library::Handle(Library::IsolateLibrary());
     ASSERT(!isolate_lib.IsNull());
     const String& class_name =
         String::Handle(isolate_lib.PrivateName(Symbols::_RawReceivePortImpl()));
@@ skipping 14 matching lines @@
   if (!result.IsError()) {
     PortMap::SetLive(port_id);
   }
   return result.raw();
 }
 
 
 DEFINE_NATIVE_ENTRY(RawReceivePortImpl_factory, 1) {
   ASSERT(AbstractTypeArguments::CheckedHandle(
       arguments->NativeArgAt(0)).IsNull());
-  intptr_t port_id =
+  Dart_Port port_id =
       PortMap::CreatePort(arguments->isolate()->message_handler());
   const Object& port = Object::Handle(ReceivePortCreate(port_id));
   if (port.IsError()) {
     Exceptions::PropagateError(Error::Cast(port));
   }
   return port.raw();
 }
 
 
 DEFINE_NATIVE_ENTRY(RawReceivePortImpl_closeInternal, 1) {
@@ skipping 168 matching lines @@
 
   // The control port is being accessed as a regular port from Dart code. This
   // is most likely due to the _startIsolate code in dart:isolate. Account for
   // this by increasing the number of open control ports.
   isolate->message_handler()->increment_control_ports();
 
   return port.raw();
 }
 
 }  // namespace dart