Format all tests.

tests/language/await_regression_test.dart

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 //
 
-
 import 'dart:async';
 import 'package:expect/expect.dart';
 
 later(vodka) => new Future.value(vodka);
 
 manana(tequila) async => tequila;
 
 // Regression test for issue 21536.
 testNestedFunctions() async {
   var a = await later('Asterix').then((tonic) {
     return later(tonic);
   });
   var o = await manana('Obelix').then(manana);
   Expect.equals("$a and $o", "Asterix and Obelix");
 }
 
 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);
 }
 
 testSideEffects() async {
   Future foo(int a1, int a2) {
     Expect.equals(10, a1);
     Expect.equals(11, a2);
     return new Future.value();
   }
+
   int a = 10;
   await foo(a++, a++);
   Expect.equals(12, a);
 }
 
 main() async {
   testNestedFunctions();
   testNamedArguments();
   testSideEffects();
 }