patch applied (ghc): In tcSplittyConApp_maybe, add the PredTy case

[Audrey Tang]

Sat Sep 23 23:32:08 PDT 2006  audreyt at audreyt.org
  * In tcSplittyConApp_maybe, add the PredTy case
  such that this can compile again:
  
      newtype Moose = MkMoose () deriving (Eq, Ord)
  

    M ./compiler/typecheck/TcType.lhs +2