Deal with synchronous errors in Future.wait.

tests/lib/async/future_test.dart

Index: tests/lib/async/future_test.dart
diff --git a/tests/lib/async/future_test.dart b/tests/lib/async/future_test.dart
index 52185f2ae8044981b6624bb2b8f9a4ecf246b3c5..71c509b6fd3973e7790df4418d8b1e55dd7bcb72 100644
--- a/tests/lib/async/future_test.dart
+++ b/tests/lib/async/future_test.dart
@@ -876,6 +876,26 @@ void testWaitCleanUpError() {
   });
 }
 
+void testWaitSyncError() {
+  var cms = const Duration(milliseconds: 100);
+  var cleanups = new List.filled(3, false);
+  var uncaughts = new List.filled(3, false);
+  asyncStart();
+  asyncStart();
+  runZoned(() {
+    Future.wait(new Iterable.generate(5, (i) {
+      if (i != 3) return new Future.delayed(cms * (i + 1), () => i);
+      throw "throwing synchronously in iterable";
+    }), cleanUp: (index) {
+      Expect.isFalse(cleanups[index]);
+      cleanups[index] = true;
+      if (cleanups.every((x) => x)) asyncEnd();
+    });
+  }, onError: (e, s) {
+    asyncEnd();
+  });
+}
+
 void testBadFuture() {
   var bad = new BadFuture();
   // Completing with bad future (then call throws) puts error in result.
@@ -1075,6 +1095,7 @@ main() {
 
   testWaitCleanUp();
   testWaitCleanUpError();
+  testWaitSyncError();
 
   testBadFuture();