Changes to ghc

Changes to ghc:
commit 25821cc9793c15e9860b3dcddf50aebf0eb718f7
Author: Kyrill Briantsev <kyrab@mail.ru>
Date:   Tue Jan 28 08:42:40 2014 -0600

    Win64 linker: fix loading foreign imports (#2283)

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