dart2js: run dartfmt on tests

tests/compiler/dart2js/loop_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.
 
 import 'dart:async';
 import 'package:expect/expect.dart';
 import 'package:async_helper/async_helper.dart';
 import 'compiler_helper.dart';
 
 const String TEST_ONE = r"""
@@ skipping 37 matching lines @@
     i++;
     if (i == 5) continue;
     x += i;
   }
   return x;
 }
 """;
 
 main() {
   asyncTest(() => Future.wait([
-    compile(TEST_ONE, entry: 'foo', check: (String generated) {
-      Expect.isTrue(generated.contains(r'for ('));
-    }),
-    compile(TEST_TWO, entry: 'foo', check: (String generated) {
-      Expect.isTrue(!generated.contains(r'break'));
-    }),
-    compile(TEST_THREE, entry: 'foo', check: (String generated) {
-      Expect.isTrue(generated.contains(r'continue'));
-    }),
-    compile(TEST_FOUR, entry: 'foo', check: (String generated) {
-      Expect.isTrue(generated.contains(r'continue'));
-    }),
-  ]));
+        compile(TEST_ONE, entry: 'foo', check: (String generated) {
+          Expect.isTrue(generated.contains(r'for ('));
+        }),
+        compile(TEST_TWO, entry: 'foo', check: (String generated) {
+          Expect.isTrue(!generated.contains(r'break'));
+        }),
+        compile(TEST_THREE, entry: 'foo', check: (String generated) {
+          Expect.isTrue(generated.contains(r'continue'));
+        }),
+        compile(TEST_FOUR, entry: 'foo', check: (String generated) {
+          Expect.isTrue(generated.contains(r'continue'));
+        }),
+      ]));
 }