Changes to ghc

Changes to ghc:
commit 77ecb7bfae57d26ff8ca6ff2868827fbca1c04b8
Author: Edward Z. Yang <ezyang@cs.stanford.edu>
Date:   Thu Jul 10 15:28:23 2014 +0100

    Make the example a little more complex

    Signed-off-by: Edward Z. Yang <ezyang@cs.stanford.edu>