Fix for issue 24243 (allow objects of dart:core and dart:collections to be passed in for now, we ne…

tests/isolate/issue_24243_child1_isolate.dart

 // Copyright (c) 2015, 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.
 
 import 'dart:isolate';
-import "package:expect/expect.dart";
-
-class FromChildIsolate {
-  String toString() => 'from child isolate';
-}
 
 main(List<String> args, message) {
   var sendPort = message;
   try {
-    sendPort.send(new FromChildIsolate());
+    var list0 = <int>[1, 2, 3];
+    var list1 = <int>[4, 5, 6];
+    var list2 = <int>[7, 8, 9];
+    var list = new List<List<int>>.from([list0, list1, list2]);
+    sendPort.send(list);
   } catch(error) {
-    Expect.isTrue(error is ArgumentError);
     sendPort.send("Invalid Argument(s).");
   }
 }