Changes to ghc

Changes to ghc:
commit c61d40e8780d5dad2767c7dfb3f9251d586926fe
Author: Austin Seipp <austin@well-typed.com>
Date:   Fri Mar 14 04:26:50 2014 -0500

    testsuite: look for tests-ghc directories for libraries

    Who knows how long the tests for containers have been broken. They
    haven't bitrotted, however.

    Signed-off-by: Austin Seipp <austin@well-typed.com>