Remove StreamController.broadcast.

tests/lib/async/stream_controller_async_test.dart

Index: tests/lib/async/stream_controller_async_test.dart
diff --git a/tests/lib/async/stream_controller_async_test.dart b/tests/lib/async/stream_controller_async_test.dart
index dca28e1709e88e9fa8c9792211e56315ed928391..f1cf3dbc135e2d725abf86f526b3053c57eae0f8 100644
--- a/tests/lib/async/stream_controller_async_test.dart
+++ b/tests/lib/async/stream_controller_async_test.dart
@@ -14,8 +14,8 @@ import 'event_helper.dart';
 testController() {
   // Test fold
   test("StreamController.fold", () {
-    StreamController c = new StreamController.broadcast();
-    Stream stream = c.stream;
+    StreamController c = new StreamController();
+    Stream stream = c.stream.asBroadcastStream();
     stream.fold(0, (a,b) => a + b)
      .then(expectAsync1((int v) {
         Expect.equals(42, v);
@@ -26,8 +26,8 @@ testController() {
   });
 
   test("StreamController.fold throws", () {
-    StreamController c = new StreamController.broadcast();
-    Stream stream = c.stream;
+    StreamController c = new StreamController();
+    Stream stream = c.stream.asBroadcastStream();
     stream.fold(0, (a,b) { throw "Fnyf!"; })
      .catchError(expectAsync1((e) { Expect.equals("Fnyf!", e.error); }));
     c.add(42);