Implement Isolate.pause in dart2js.

tests/isolate/pause_test.dart

Index: tests/isolate/pause_test.dart
diff --git a/tests/isolate/pause_test.dart b/tests/isolate/pause_test.dart
index 71691adfc8ca4257d6823afaee05e60541fdafec..376a4f22851a88adf8012a1d9c13802b3bdb8836 100644
--- a/tests/isolate/pause_test.dart
+++ b/tests/isolate/pause_test.dart
@@ -24,18 +24,19 @@ main(){
   reply.handler = completer.complete;
   Isolate.spawn(isomain1, reply.sendPort).then((Isolate iso) {
     isolate = iso;
-    resume = isolate.pause();
     return completer.future;
   }).then((echoPort) {
     // Isolate has been created, and first response has been returned.
+    resume = isolate.pause();
     echoPort.send(24);
     reply.handler = (v) {
       throw "RESPONSE WHILE PAUSED?!?";
     };
-    return new Future.delayed(const Duration(milliseconds: 250));
+    return new Future.delayed(const Duration(milliseconds: /*25*/0));

[floitsch, 2014/02/07 15:40:16]

on purpose?

[Lasse Reichstein Nielsen, 2014/02/10 08:41:26]

To make it run in d8 while testing.
Will remove now, and mark as failng in d8.

   }).then((_) {
     reply.handler = (v) {
       if (v != 24) throw "WRONG ANSWER!";
+      print("Success");

[floitsch, 2014/02/07 15:40:16]

debug?

[Lasse Reichstein Nielsen, 2014/02/10 08:41:26]

Done.

       reply.close();
       asyncEnd();
     };