Validate failures

[Simon Marlow]

Validate is slipping again folks.  Can those responsible please clean up 
the failures?  These make it hard for someone else to figure out whether 
they can commit or not.

Unexpected failures:
    ghci/scripts               Defer02 [bad stderr] (ghci)
    indexed-types/should_fail  T3330c [stderr mismatch] (normal)
    polykinds                  PolyKinds02 [stderr mismatch] (normal)
    safeHaskell/ghci           p5 [bad stdout] (ghci)
    safeHaskell/ghci           p7 [bad stdout] (ghci)
    safeHaskell/ghci           p8 [bad stdout] (ghci)


Cheers,
	Simon