Changes to ghc(3) testsuite(2)

Changes to ghc:
commit f1c7d9450f2f44424260c3ba1c8d658a15d05b7b
Author: Jan Stolarek <jan.stolarek@p.lodz.pl>
Date:   Fri Oct 18 18:18:27 2013 +0200

    Comments only

commit 057bef6ef759bc0819d4ced291da92aa3feb445a
Author: Jan Stolarek <jan.stolarek@p.lodz.pl>
Date:   Fri Oct 18 17:43:55 2013 +0200

    Improve control flow optimisation algorithm

    Fixes #8456. Previous version of control flow optimisations
    did not update the list of block predecessors, leading to
    unnecessary duplication of blocks in some cases. See Trac
    and comments in the code for more details.

commit b0545d81d2c838629498e84e144010870eaf2dfc
Author: Jan Stolarek <jan.stolarek@p.lodz.pl>
Date:   Thu Oct 17 15:53:17 2013 +0200

    Trailing whitespaces

Changes to testsuite:
commit e7e0d82f184c11c7b9fdff66652281ac942b9cc2
Author: Jan Stolarek <jan.stolarek@p.lodz.pl>
Date:   Fri Oct 18 19:05:55 2013 +0200

    Update performance tests

    Regressions in haddock for unknown reason

commit 1e31b0083597c2c1cf3198c8e8c5736360640f91
Author: Jan Stolarek <jan.stolarek@p.lodz.pl>
Date:   Fri Oct 18 19:00:55 2013 +0200

    Update performance test due to fix for #8456