patch applied (ghc): Added listSplitUniqSupply to ./compiler/basicTypes/UniqSupply.lhs

[Simon Marlow]

Fri May 18 13:09:42 PDT 2007  Michael D. Adams <t-madams at microsoft.com>
  * Added listSplitUniqSupply to ./compiler/basicTypes/UniqSupply.lhs
  
  The function
    listSplitUniqSupply :: UniqSupply -> [UniqSupply]
  splits a UniqSupply into an infinite list of supplies.
  It is a generalization of splitUniqSupply.

    M ./compiler/basicTypes/UniqSupply.lhs -1 +3