SendPort + ReceivePort changes:

tests/isolate/src/Message2Test.dart

 // 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.
 
 // Dart test program for testing serialization of messages.
 // VMOptions=--enable_type_checks --enable_asserts
 
 #library('Message2Test');
 #import("dart:isolate");
 #import("TestFramework.dart");
@@ skipping 46 matching lines @@
   }
 }
 
 void test(TestExpectation expect) {
   expect.completes(new PingPongServer().spawn()).then((SendPort remote) {
     Map m = new Map();
     m[1] = "eins";
     m[2] = "deux";
     m[3] = "tre";
     m[4] = "four";
-    remote.call(m).receive(expect.runs2((var received, SendPort replyTo) {
+    remote.call(m).then(expect.runs1((var received) {
       MessageTest.mapEqualsDeep(m, received);
       remote.send(-1, null);
       expect.succeeded();
     }));
   });
 }
 
 main() {
   runTests([test]);
 }