Remove old isolate API and update all code in the repository to use

tests/isolate/cross_isolate_message_test.dart

-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
+// 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.
 
 // Dart test program for testing that isolates can communicate to isolates
 // other than the main isolate.
 
 #library('CrossIsolateMessageTest');
 #import('dart:isolate');
 #import('../../lib/unittest/unittest.dart');
 
-class CrossIsolate1 extends Isolate {
-  CrossIsolate1() : super.heavy();
-
-  void main() {
-    this.port.receive((msg, replyTo) {
-      SendPort otherIsolate = msg;
-      ReceivePort receivePort = new ReceivePort();
-      receivePort.receive((msg, replyTo) {
-        otherIsolate.send(msg + 58, null);  // 100.
-        receivePort.close();
-      });
-      replyTo.send(['ready', receivePort.toSendPort()]);
-      this.port.close();
+void crossIsolate1() {
+  port.receive((msg, replyTo) {
+    SendPort otherIsolate = msg;
+    ReceivePort receivePort = new ReceivePort();
+    receivePort.receive((msg, replyTo) {
+      otherIsolate.send(msg + 58, null);  // 100.
+      receivePort.close();
     });
-  }
+    replyTo.send(['ready', receivePort.toSendPort()]);
+    port.close();
+  });
 }
 
-// CrossIsolate2 is nearly the same as CrossIsolate1, but contains a
+// crossIsolate2 is nearly the same as crossIsolate1, but contains a
 // different constant.
-class CrossIsolate2 extends Isolate {
-  CrossIsolate2() : super.heavy();
-
-  void main() {
-    this.port.receive((msg, replyTo) {
-      SendPort mainIsolate = msg;
-      ReceivePort receivePort = new ReceivePort();
-      receivePort.receive((msg, replyTo) {
-        mainIsolate.send(msg + 399, null); // 499.
-        receivePort.close();
-      });
-      replyTo.send(['ready', receivePort.toSendPort()]);
-      this.port.close();
+void crossIsolate2() {
+  port.receive((msg, replyTo) {
+    SendPort mainIsolate = msg;
+    ReceivePort receivePort = new ReceivePort();
+    receivePort.receive((msg, replyTo) {
+      mainIsolate.send(msg + 399, null); // 499.
+      receivePort.close();
     });
-  }
+    replyTo.send(['ready', receivePort.toSendPort()]);
+    port.close();
+  });
 }
 
 main() {
   test("share port, and send message cross isolates ", () {
-    // Create CrossIsolate1 and CrossIsolate2.
-    new CrossIsolate1().spawn().then(expectAsync1((SendPort port1) {
-      new CrossIsolate2().spawn().then(expectAsync1((SendPort port2) {
-        // Create a new receive port and send it to isolate2.
-        ReceivePort myPort = new ReceivePort();
-        port2.call(myPort.toSendPort()).then(expectAsync1((msg) {
-          Expect.equals("ready", msg[0]);
-          // Send port of isolate2 to isolate1.
-          port1.call(msg[1]).then(expectAsync1((msg) {
-            Expect.equals("ready", msg[0]);
-            myPort.receive(expectAsync2((msg, replyTo) {
-              Expect.equals(499, msg);
-              myPort.close();
-            }));
-            msg[1].send(42, null);
-          }));
+    SendPort port1 = spawnFunction(crossIsolate1);
+    SendPort port2 = spawnFunction(crossIsolate2);
+    // Create a new receive port and send it to isolate2.
+    ReceivePort myPort = new ReceivePort();
+    port2.call(myPort.toSendPort()).then(expectAsync1((msg) {
+      Expect.equals("ready", msg[0]);
+      // Send port of isolate2 to isolate1.
+      port1.call(msg[1]).then(expectAsync1((msg) {
+        Expect.equals("ready", msg[0]);
+        myPort.receive(expectAsync2((msg, replyTo) {
+          Expect.equals(499, msg);
+          myPort.close();
         }));
+        msg[1].send(42, null);
       }));
     }));
   });
 }