Changes to ghc testsuite

Changes to ghc:
commit 9bc5b530811407b19882b6c479a05b99c1329962
Author: Joachim Breitner <mail@joachim-breitner.de>
Date:   Wed Nov 27 17:19:20 2013 +0000

    Coercible for impredicative types

    using deferTcSForAllEq, just like for ~ types, during canonicalization

Changes to testsuite:
commit e19dc21f8a876a0b4849311d664472e61658d06d
Author: Joachim Breitner <mail@joachim-breitner.de>
Date:   Wed Nov 27 17:20:28 2013 +0000

    Testcase #8565 no longer broken

    at least with ImpredicativeTypes enabled in this module.