Format all tests.

tests/standalone/regress_26031_test.dart

 // Copyright (c) 2016, 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:io';
 import 'dart:isolate';
 
 import "package:expect/expect.dart";
 
 void checkResolvedExecutable(String re) {
   Expect.equals(Platform.resolvedExecutable, re);
 }
 
 main() {
   var exitPort = new ReceivePort();
-  Isolate.spawn(checkResolvedExecutable,
-                Platform.resolvedExecutable,
-                onExit: exitPort.sendPort);
+  Isolate.spawn(checkResolvedExecutable, Platform.resolvedExecutable,
+      onExit: exitPort.sendPort);
   exitPort.listen((_) => exitPort.close());
 }