Format all multitests

tests/language_strong/async_return_types_test.dart

Index: tests/language_strong/async_return_types_test.dart
diff --git a/tests/language_strong/async_return_types_test.dart b/tests/language_strong/async_return_types_test.dart
index 103a9f2fb1f9cef876321b71b99ad7d1f0b75273..f763c090f5cd6cbf3d464f0347640d05900853f4 100644
--- a/tests/language_strong/async_return_types_test.dart
+++ b/tests/language_strong/async_return_types_test.dart
@@ -30,7 +30,7 @@ foo5() async {
   return 3;
 }
 
-Future<int> foo6() async { 
+Future<int> foo6() async {
   // This is fine, the future is flattened
   return new Future<int>.value(3);
 }
@@ -52,4 +52,4 @@ test() async {
 
 main() {
   asyncTest(test);
-}
+}