Run formatter on a few frontend and kernel files that hadn't been formatted.

pkg/front_end/testcases/cycles.dart

Index: pkg/front_end/testcases/cycles.dart
diff --git a/pkg/front_end/testcases/cycles.dart b/pkg/front_end/testcases/cycles.dart
index 977faff54bcc32f39bb6abd828671a1c9120ed87..4c953b18eece9e4bcb0ae720995c480abbaf2664 100644
--- a/pkg/front_end/testcases/cycles.dart
+++ b/pkg/front_end/testcases/cycles.dart
@@ -2,17 +2,13 @@
 // 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.
 
-class A implements C {
-}
+class A implements C {}
 
-class B extends A {
-}
+class B extends A {}
 
-class C extends B implements D {
-}
+class C extends B implements D {}
 
-class D {
-}
+class D {}
 
 main() {
   print(new A());