Format all tests.

tests/standalone/io/test_extension_fail_test.dart

 // Copyright (c) 2012, 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.
 //
 // Dart test program for testing native extensions.
 
 import "package:path/path.dart";
 import "dart:async";
 import "dart:io";
 
@@ skipping 23 matching lines @@
           'Unknown operating system ${Platform.operatingSystem}');
   }
 }
 
 bool checkExitCode(int code) {
   return ((code == 255) || (code == 253));
 }
 
 bool checkStdError(String err) {
   return err.contains("Unhandled exception:") ||
-         err.contains(
-            "Native extension path must be absolute, or simply the file name");
+      err.contains(
+          "Native extension path must be absolute, or simply the file name");
 }
 
 // name is either "extension" or "relative_extension"
 Future test(String name, bool checkForBall) {
   String scriptDirectory = dirname(Platform.script.toFilePath());
   String buildDirectory = dirname(Platform.executable);
   Directory tempDirectory =
       Directory.systemTemp.createTempSync('dart_test_${name}_fail');
   String testDirectory = tempDirectory.path;
 
   // Copy test_extension shared library, test_extension.dart and
   // test_extension_fail_tester.dart to the temporary test directory.
-  copyFileToDirectory(getExtensionPath(buildDirectory),
-                      testDirectory).then((_) {
+  copyFileToDirectory(getExtensionPath(buildDirectory), testDirectory)
+      .then((_) {
     var extensionDartFile = join(scriptDirectory, 'test_${name}.dart');
     return copyFileToDirectory(extensionDartFile, testDirectory);
   }).then((_) {
     var testExtensionTesterFile =
         join(scriptDirectory, 'test_${name}_fail_tester.dart');
     return copyFileToDirectory(testExtensionTesterFile, testDirectory);
   }).then((_) {
     var script = join(testDirectory, 'test_${name}_fail_tester.dart');
     return Process.run(Platform.executable, ['--trace-loading', script]);
   }).then((ProcessResult result) {
@@ skipping 10 matching lines @@
         throw new StateError("stderr doesn't contain 'ball'.");
       }
     }
   }).whenComplete(() => tempDirectory.deleteSync(recursive: true));
 }
 
 main() async {
   await test("extension", true);
   await test("relative_extension", false);
 }