Reapply "Zone support for Futures, Timer, Streams."

tests/lib/async/catch_errors25_test.dart

Index: tests/lib/async/catch_errors25_test.dart
diff --git a/tests/lib/async/catch_errors25_test.dart b/tests/lib/async/catch_errors25_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..162a4a358dfef476b658812737bd282c8a585cc0
--- /dev/null
+++ b/tests/lib/async/catch_errors25_test.dart
@@ -0,0 +1,27 @@
+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import "package:expect/expect.dart";
+import 'dart:async';
+import 'dart:isolate';
+import 'catch_errors.dart';
+
+main() {
+  // We keep a ReceivePort open until all tests are done. This way the VM will
+  // hang if the callbacks are not invoked and the test will time out.
+  var port = new ReceivePort();
+  var events = [];
+  StreamController controller;
+  // Test multiple subscribers of an asBroadcastStream inside the same
+  // `catchErrors`.
+  catchErrors(() {
+    var stream = new Stream.fromIterable([1, 2]).asBroadcastStream();
+    stream.listen(events.add);
+    stream.listen(events.add);
+  }).listen((x) { events.add("outer: $x"); },
+            onDone: () {
+              Expect.listEquals([1, 1, 2, 2], events);
+              port.close();
+            });
+}