patch applied (ghc): Monadify deSugar/DsCCall: use do, return, applicative, standard monad functions

[Ian Lynagh]

Thu Jan 17 08:53:34 PST 2008  Twan van Laarhoven <twanvl at gmail.com>
  * Monadify deSugar/DsCCall: use do, return, applicative, standard monad functions

    M ./compiler/deSugar/DsCCall.lhs -128 +121