Changes to ghc

Changes to ghc:
commit 1a11e9ba87469d19b8cc7da9c5f5ac043246b367
Author: Johan Tibell <johan.tibell@gmail.com>
Date:   Sun Mar 30 15:12:01 2014 +0200

    Add inline versions of copy ops for small arrays

    If the number of elements being copied is known statically this might
    lead to the copy loop being unrolled in the backend.