Change singleSubscription/multiSubscription to normal/broadcast.

tests/lib/async/stream_min_max_test.dart

Index: tests/lib/async/stream_min_max_test.dart
diff --git a/tests/lib/async/stream_min_max_test.dart b/tests/lib/async/stream_min_max_test.dart
index e8b123e6a1ef70449b83d9d28ff027e21dc394c0..67c9f015ba9c77ceb00987bb317a5bbd60f8d8d0 100644
--- a/tests/lib/async/stream_min_max_test.dart
+++ b/tests/lib/async/stream_min_max_test.dart
@@ -18,13 +18,13 @@ main() {
   testMinMax(name, iterable, min, max, [int compare(a, b)]) {
     test("$name-min", () {
       StreamController c = new StreamController();
-      Future f = c.min(compare);
+      Future f = c.stream.min(compare);
       f.then(expectAsync1((v) { Expect.equals(min, v);}));
       new Events.fromIterable(iterable).replay(c);
     });
     test("$name-max", () {
       StreamController c = new StreamController();
-      Future f = c.max(compare);
+      Future f = c.stream.max(compare);
       f.then(expectAsync1((v) { Expect.equals(max, v);}));
       new Events.fromIterable(iterable).replay(c);
     });