Proposal (Trac ticket #3671): Add takeRec, genericTakeRec and spanRec to Data.List

Dear all, After defining these for the umpeenth time, I would like to add the functions takeRec, genericTakeRec and spanRec to Data.List, as per http://hackage.haskell.org/trac/ghc/ticket/3671 Suggested discussion time: 2 weeks. Regards, Philip