Work around is check issue causing zone error handlers to never fire. Update test expectations to r…

tool/input_sdk/lib/async/zone.dart

Index: tool/input_sdk/lib/async/zone.dart
diff --git a/tool/input_sdk/lib/async/zone.dart b/tool/input_sdk/lib/async/zone.dart
index 24f83f8bd8ba69a5ce7468aa031005d93a9d2266..6b13e66df92bb9ac891e71f29d9b9cbc878ea4e7 100644
--- a/tool/input_sdk/lib/async/zone.dart
+++ b/tool/input_sdk/lib/async/zone.dart
@@ -1274,8 +1274,11 @@ const _ROOT_ZONE = const _RootZone();
     errorHandler = (Zone self, ZoneDelegate parent, Zone zone,
                     error, StackTrace stackTrace) {
       try {
-        if (onError is ZoneBinaryCallback<dynamic/*=R*/, dynamic, StackTrace>) {
-          return self.parent.runBinary(onError, error, stackTrace);
+        // Change this is check back to
+        // onError is ZoneBinaryCallback<dynamic/*=R*/, dynamic, StackTrace>
+        // once is checks for that type are handled correctly.
+        if (onError is ZoneBinaryCallback<dynamic, dynamic, StackTrace>) {
+          return self.parent.runBinary(onError, error, stackTrace) as Object/*=R*/;
         }
         return self.parent.runUnary(onError, error);
       } catch(e, s) {