Changes to ghc(2) testsuite(4)

Changes to ghc:
commit 38438e1325461f8f6d32b21378cc10584e6b012e
Author: Simon Peyton Jones <simonpj@microsoft.com>
Date:   Wed Nov 6 09:30:40 2013 +0000

    Improve a parser error message (Trac #8506)

commit 8944fd3fc5fa7d435f438c5680c8d177257d27e9
Author: Simon Peyton Jones <simonpj@microsoft.com>
Date:   Wed Nov 6 09:30:20 2013 +0000

    Zonk the type in reifyInstances (fixes Trac #7477)

    A simple oversight, but crucial!  tcLHsType was returning
        F k Int
    where k is a unification variable that has been unified with *

Changes to testsuite:
commit 559436a1dbd7684770b8ba366355a6100d48682d
Author: Simon Peyton Jones <simonpj@microsoft.com>
Date:   Wed Nov 6 10:40:05 2013 +0000

    Error message wibbles

commit 7a318d7d3a1467251b3133c43f01c7372c32904e
Author: Simon Peyton Jones <simonpj@microsoft.com>
Date:   Wed Nov 6 09:56:54 2013 +0000

    Test for Trac #4135, comment 2

commit 8a4d858e9df67c35c5f59e2f6382ece02fc4c214
Author: Simon Peyton Jones <simonpj@microsoft.com>
Date:   Wed Nov 6 09:36:28 2013 +0000

    Test Trac #8506

commit 37158ff9ee3603c863eee8dcdfd196750fe8847a
Author: Simon Peyton Jones <simonpj@microsoft.com>
Date:   Wed Nov 6 09:34:03 2013 +0000

    Test Trac #7477