Changes to ghc(3)

Changes to ghc:
commit cd038938ba0c98f81a3ac2e047f8a4f46f4982bd
Author: Simon Peyton Jones <simonpj@microsoft.com>
Date:   Wed Dec 4 13:40:43 2013 +0000

    Comments only

commit b67f50350e6d15049ba2110b31dd63f20db27746
Author: Simon Peyton Jones <simonpj@microsoft.com>
Date:   Mon Dec 2 16:49:57 2013 +0000

    Improve ASSERT

commit e1221541ec1587c8bb6a637afd09490566dbdd0e
Author: Simon Peyton Jones <simonpj@microsoft.com>
Date:   Mon Dec 2 16:49:22 2013 +0000

    Comments only