dart2js: run dartfmt on tests

tests/compiler/dart2js/dart2js_batch2_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 'dart:convert';
 import 'dart:io';
 
 import 'package:path/path.dart' as path;
 import 'package:async_helper/async_helper.dart';
 import 'package:expect/expect.dart';
 
 var tmpDir;
 
 copyDirectory(Directory sourceDir, Directory destinationDir) {
   sourceDir.listSync().forEach((FileSystemEntity element) {
-    String newPath = path.join(destinationDir.path,
-                               path.basename(element.path));
+    String newPath =
+        path.join(destinationDir.path, path.basename(element.path));
     if (element is File) {
       element.copySync(newPath);
     } else if (element is Directory) {
       Directory newDestinationDir = new Directory(newPath);
       newDestinationDir.createSync();
       copyDirectory(element, newDestinationDir);
     }
   });
 }
 
@@ skipping 15 matching lines @@
   });
 }
 
 void cleanUp() {
   print("Deleting '${tmpDir.path}'.");
   tmpDir.deleteSync(recursive: true);
 }
 
 Future launchDart2Js(_) {
   String ext = Platform.isWindows ? '.bat' : '';
-  String command =
-      path.normalize(path.join(path.fromUri(Platform.script),
-                    '../../../../sdk/bin/dart2js${ext}'));
+  String command = path.normalize(path.join(
+      path.fromUri(Platform.script), '../../../../sdk/bin/dart2js${ext}'));
   print("Running '$command --batch' from '${tmpDir}'.");
   return Process.start(command, ['--batch'], workingDirectory: tmpDir.path);
 }
 
 Future runTests(Process process) {
   String inFile = path.join(tmpDir.path, 'dart2js_batch2_run.dart');
   String outFile = path.join(tmpDir.path, 'out.js');
 
   process.stdin.writeln('--out="$outFile" "$inFile"');
   process.stdin.close();
   Future<String> output = process.stdout.transform(UTF8.decoder).join();
   Future<String> errorOut = process.stderr.transform(UTF8.decoder).join();
-  return Future.wait([output, errorOut])
-        .then((result) {
-      String stdoutOutput = result[0];
-      String stderrOutput = result[1];
+  return Future.wait([output, errorOut]).then((result) {
+    String stdoutOutput = result[0];
+    String stderrOutput = result[1];
 
-      Expect.isFalse(stdoutOutput.contains("crashed"));
-    });
+    Expect.isFalse(stdoutOutput.contains("crashed"));
+  });
 }
 
 void main() {
   var tmpDir;
   asyncTest(() {
-    return setup()
-        .then(launchDart2Js)
-        .then(runTests)
-        .whenComplete(cleanUp);
+    return setup().then(launchDart2Js).then(runTests).whenComplete(cleanUp);
   });
 }