Format all tests.

tests/lib/async/stream_first_where_test.dart

Index: tests/lib/async/stream_first_where_test.dart
diff --git a/tests/lib/async/stream_first_where_test.dart b/tests/lib/async/stream_first_where_test.dart
index 6a35d266fce7b0ff8e1540e71fa9596d75d3429e..f0c062340cbd44fa0cce4dda83ef0b475c6bdf46 100644
--- a/tests/lib/async/stream_first_where_test.dart
+++ b/tests/lib/async/stream_first_where_test.dart
@@ -10,8 +10,13 @@ import 'package:unittest/unittest.dart';
 import 'event_helper.dart';
 import 'stream_state_helper.dart';
 
-class A { const A(); }
-class B extends A { const B(); }
+class A {
+  const A();
+}
+
+class B extends A {
+  const B();
+}
 
 main() {
   Events sentEvents = new Events()..close();
@@ -21,7 +26,9 @@ main() {
   test("firstWhere with super class", () {
     StreamController c = new StreamController<B>();
     Future f = c.stream.firstWhere((x) => false, defaultValue: () => const A());
-    f.then(expectAsync((v) { Expect.equals(const A(), v); }));
+    f.then(expectAsync((v) {
+      Expect.equals(const A(), v);
+    }));
     sentEvents.replay(c);
   });
 }