Changes to ghc(2)

Changes to ghc:
commit 88d94524f46df7c99214cde7e2952aacdd3fb6cc
Author: Simon Peyton Jones <simonpj@microsoft.com>
Date:   Tue Mar 25 14:34:44 2014 +0000

    Test Trac #8848

commit b800e52ac503c27912260cab4a14022c09f98ded
Author: Simon Peyton Jones <simonpj@microsoft.com>
Date:   Tue Mar 25 14:20:10 2014 +0000

    Comments only