patch applied (cabal): Split Distribution.PackageDescription into three other modules

[Duncan Coutts]

Mon Feb  4 13:33:06 PST 2008  Duncan Coutts <duncan at haskell.org>
  * Split Distribution.PackageDescription into three other modules
  New D.PackageDescription.Types with the types and simple utils
  New D.PackageDescription.Parse module for parsing and printing functions.
  The sanity check code is moved into the existing QA module.
  The public api of Distribution.PackageDescription remains the same.

    M ./Cabal.cabal +2
    M ./Distribution/PackageDescription.hs -1078 +30
    A ./Distribution/PackageDescription/Parse.hs
    M ./Distribution/PackageDescription/QA.hs -4 +111
    A ./Distribution/PackageDescription/Types.hs