Changes to ghc(2) testsuite

Changes to ghc:
commit f432229be0ee206c5dd774a43cc7ce461d9110fb
Author: Joachim Breitner <mail@joachim-breitner.de>
Date:   Wed Nov 27 14:26:33 2013 +0000

    Remove unused liftTcCoSubstWith

commit 3ac1539cfa1745ef5133fc5747095deb0c1d795d
Author: Joachim Breitner <mail@joachim-breitner.de>
Date:   Wed Nov 27 10:33:56 2013 +0000

    Add role-checking ASSERT to mkCast

Changes to testsuite:
commit 3e2b55766664a91d02956bd31c3abf3fee840f95
Author: Joachim Breitner <mail@joachim-breitner.de>
Date:   Wed Nov 27 15:02:23 2013 +0000

    Bump haddock.compiler perf data