patch applied (cabal): Add a few type sigs to help hugs and as documentation

[Duncan Coutts]

Tue Oct  7 14:41:20 PDT 2008  Duncan Coutts <duncan at haskell.org>
  * Add a few type sigs to help hugs and as documentation
  Thanks to Dimitry and Ross for identifying the problem.

    M ./Distribution/Simple/GHC.hs -1 +4

View patch online:
http://darcs.haskell.org/cabal/_darcs/patches/20081007214120-adfee-43a65ea50824f5ce13b4369966843c747746dce2.gz