Format all tests.

tests/lib/async/stream_periodic6_test.dart

Index: tests/lib/async/stream_periodic6_test.dart
diff --git a/tests/lib/async/stream_periodic6_test.dart b/tests/lib/async/stream_periodic6_test.dart
index 1d4ffa332b05adc41b2fd3dfe73eaef735d2c1e5..b413613b80f9b4cda87d1a5bb10cb92bb44dc5ce 100644
--- a/tests/lib/async/stream_periodic6_test.dart
+++ b/tests/lib/async/stream_periodic6_test.dart
@@ -10,18 +10,17 @@ import 'package:unittest/unittest.dart';
 
 main() {
   test("stream-periodic1", () {
-    Stream stream = new Stream.periodic(const Duration(milliseconds: 1),
-                                        (i) {
-                                          if (i == 3) throw 42;
-                                          return i;
-                                        });
+    Stream stream = new Stream.periodic(const Duration(milliseconds: 1), (i) {
+      if (i == 3) throw 42;
+      return i;
+    });
     int expected = 0;
     var subscription;
-    subscription = stream.listen(expectAsync((data) {
-      expect(data, expected++);
-      if (expected == 5) subscription.cancel();
-    }, count: 4),
-    onError: expectAsync((e, s) {
+    subscription = stream.listen(
+        expectAsync((data) {
+          expect(data, expected++);
+          if (expected == 5) subscription.cancel();
+        }, count: 4), onError: expectAsync((e, s) {
       expect(e, 42);
       expected++;
     }));