patch applied (ghc): Fixed desugaring of parallel array comprehensions

[chak at cse.unsw.edu.au]

Mon Apr  2 01:24:24 PDT 2007  Manuel M T Chakravarty <chak at cse.unsw.edu.au>
  * Fixed desugaring of parallel array comprehensions
  
    ** MERGE into 6.6.1 **

    M ./compiler/deSugar/DsListComp.lhs -36 +55
    M ./compiler/prelude/PrelNames.lhs -3 +3