Update serializer to be able to deal with ool constant pool.

This CL depends on CL https://codereview.chromium.org/179813005/ landing first.

R=ulan@chromium.org

Review URL: https://codereview.chromium.org/190883002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@19826 ce2b1a6d-e550-0410-aec6-3dcde31c8c00