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

pkg/front_end/testcases/rasta/issue_000067.dart

 // Copyright (c) 2016, 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.md file.
 
 import "package:expect/expect.dart";
 
 class A {
   A() {}
   factory A.foo() = C.bar;
   int m() {}
 }
 
 class C extends A {
   C() {}
   factory C.bar() = D;
-  int m() { return 1; }
+  int m() {
+    return 1;
+  }
 }
 
 class D extends C {
-  int m() { return 2; }
+  int m() {
+    return 2;
+  }
 }
 
 main() {
   A a = new A.foo();
   Expect.equals(2, a.m());
 }