patch applied (ghc): add debugDumpTcRn and use it for some debugging output

[Simon Marlow]

Tue Jun  3 04:20:30 PDT 2008  Simon Marlow <marlowsd at gmail.com>
  * add debugDumpTcRn and use it for some debugging output

    M ./compiler/typecheck/TcRnMonad.lhs -1 +5
    M ./compiler/typecheck/TcSimplify.lhs -1 +1

View patch online:
http://darcs.haskell.org/ghc/_darcs/patches/20080603112030-12142-f83e7d13927dfe6ef7c18ce10b39a655ee892658.gz