dart2js: run dartfmt on tests

tests/compiler/dart2js/forloop_box_test.dart

Index: tests/compiler/dart2js/forloop_box_test.dart
diff --git a/tests/compiler/dart2js/forloop_box_test.dart b/tests/compiler/dart2js/forloop_box_test.dart
index 25873c080c73799b243d7c82a3fa175a507944da..e44bf61c537ebb6861dc53ea2b9e8aaef2fa59f1 100644
--- a/tests/compiler/dart2js/forloop_box_test.dart
+++ b/tests/compiler/dart2js/forloop_box_test.dart
@@ -29,11 +29,11 @@ main() {
 
 main() {
   asyncTest(() => compileAll(TEST).then((generated) {
-    Expect.isTrue(generated.contains('main_closure(i)'),
-        'for-loop variable was boxed');
-  }));
+        Expect.isTrue(generated.contains('main_closure(i)'),
+            'for-loop variable was boxed');
+      }));
   asyncTest(() => compileAll(NEGATIVE_TEST).then((generated) {
-    Expect.isFalse(generated.contains('main_closure(i)'),
-        'for-loop variable was not boxed');
-  }));
+        Expect.isFalse(generated.contains('main_closure(i)'),
+            'for-loop variable was not boxed');
+      }));
 }