Add second argument to Future error handlers.

tests/lib/async/zone_debug_test.dart

Index: tests/lib/async/zone_debug_test.dart
diff --git a/tests/lib/async/zone_debug_test.dart b/tests/lib/async/zone_debug_test.dart
index 10d43fcc2f79f8956f7d0ac759448f5330c7af69..3d41edbef15dbdcfe38e7efce5bd1401114e7c5d 100644
--- a/tests/lib/async/zone_debug_test.dart
+++ b/tests/lib/async/zone_debug_test.dart
@@ -48,7 +48,8 @@ debugZoneRunUnary(Zone self, ZoneDelegate parent, Zone origin, f(arg), arg) {
 
 List expectedDebugTrace;
 
-debugUncaughtHandler(Zone self, ZoneDelegate parent, Zone origin, error) {
+debugUncaughtHandler(

[Lasse Reichstein Nielsen, 2013/10/04 09:17:39]

void return type?

[floitsch, 2013/10/05 17:22:59]

The return-type is actually specified as being dynamic.
This is used when the uncaught-handler is used like a try/catch.

+    Zone self, ZoneDelegate parent, Zone origin, error, StackTrace stackTrace) {
   events.add("handling uncaught error $error");
   Expect.listEquals(expectedDebugTrace, restoredStackTrace);
   // Suppress the error and don't propagate to parent.