Isolates: allow sending of arbitrary objects in dart2js.

tests/isolate/function_send_test.dart

Index: tests/isolate/function_send_test.dart
diff --git a/tests/isolate/function_send_test.dart b/tests/isolate/function_send_test.dart
index 95f4f93171c7156e03a8a27da80eae206da08bff..51d26ba58ebab56be3757ad1274cef2dc82a5aaa 100644
--- a/tests/isolate/function_send_test.dart
+++ b/tests/isolate/function_send_test.dart
@@ -153,13 +153,12 @@ void testUnsendable(name, func) {
 
   asyncStart();
   var noReply = new RawReceivePort((_) { throw "Unexpected message: $_"; });
-  // Currently succeedes incorrectly in dart2js.
-  Expect.throws(() {                /// 01: ok
-    noReply.sendPort.send(func);    /// 01: continued
-  }, null, "send direct");          /// 01: continued
-  Expect.throws(() {                /// 01: continued
-    noReply.sendPort.send([func]);  /// 01: continued
-  }, null, "send wrapped");         /// 01: continued
+  Expect.throws(() {
+    noReply.sendPort.send(func);
+  }, null, "send direct");
+  Expect.throws(() {
+    noReply.sendPort.send([func]);
+  }, null, "send wrapped");
   scheduleMicrotask(() {
     noReply.close();
     asyncEnd();