Format all tests.

tests/lib/mirrors/library_metadata_test.dart

Index: tests/lib/mirrors/library_metadata_test.dart
diff --git a/tests/lib/mirrors/library_metadata_test.dart b/tests/lib/mirrors/library_metadata_test.dart
index 7a787bec8ec20bae9562237bfc54fee014ea2dca..f1b1870cb0e84c40d387b77b2fa4def803cb8adb 100644
--- a/tests/lib/mirrors/library_metadata_test.dart
+++ b/tests/lib/mirrors/library_metadata_test.dart
@@ -2,7 +2,8 @@
 // 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.
 
-@string @symbol
+@string
+@symbol
 library test.library_metadata_test;
 
 @MirrorsUsed(targets: "test.library_metadata_test")
@@ -12,7 +13,7 @@ import 'metadata_test.dart';
 
 main() {
   MirrorSystem mirrors = currentMirrorSystem();
-  checkMetadata(mirrors.findLibrary(#test.library_metadata_test),
-                [string, symbol]);
+  checkMetadata(
+      mirrors.findLibrary(#test.library_metadata_test), [string, symbol]);
   checkMetadata(mirrors.findLibrary(#test.metadata_test), []);
 }