Changes to ghc

Changes to ghc:
commit 61395b59191284a2cc249e614bbba993c16ef8c5
Author: Joachim Breitner <breitner@kit.edu>
Date:   Thu Jan 16 10:22:04 2014 +0100

    type-rep is only broken when debugging is on

    in which case it is a wontfix (see #8569)