Format all tests.

tests/language_strong/await_regression_test.dart

Index: tests/language_strong/await_regression_test.dart
diff --git a/tests/language_strong/await_regression_test.dart b/tests/language_strong/await_regression_test.dart
index 9c3e663471b03a8c9b8429650c47741ed91bbe41..87bb8f4f8787770141c185da2c838d9c3d4e9514 100644
--- a/tests/language_strong/await_regression_test.dart
+++ b/tests/language_strong/await_regression_test.dart
@@ -3,7 +3,6 @@
 // BSD-style license that can be found in the LICENSE file.
 //
 
-
 import 'dart:async';
 import 'package:expect/expect.dart';
 
@@ -24,9 +23,9 @@ addLater({a, b}) => new Future.value(a + b);
 
 // Regression test for issue 21480.
 testNamedArguments() async {
-  var sum = await addLater(a:5, b:10);
+  var sum = await addLater(a: 5, b: 10);
   Expect.equals(sum, 15);
-  sum = await addLater(b:11, a:-11);
+  sum = await addLater(b: 11, a: -11);
   Expect.equals(sum, 0);
 }