Move utils.h and utils.cc from runtime/vm to runtime/platform

runtime/platform/utils.cc

Index: runtime/platform/utils.cc
diff --git a/runtime/vm/utils.cc b/runtime/platform/utils.cc
similarity index 96%
rename from runtime/vm/utils.cc
rename to runtime/platform/utils.cc
index 86b9c6a5baa29913b3bddf46d0d46514681fa831..09b9260473a3f3bffd8c85e3d518380c9db0da9d 100644
--- a/runtime/vm/utils.cc
+++ b/runtime/platform/utils.cc
@@ -1,8 +1,8 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
+// 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.
 
-#include "vm/utils.h"
+#include "platform/utils.h"
 
 namespace dart {