when lambda lifting grin, don't abstract over cafs
when lambda lifting grin, don't abstract over cafs

darcs-hash:20070602085708-1a7c6-b87e7da93551d9b9f6b8b1e551c47bfba77b845e

kirbyfan64/jhc,kirbyfan64/jhc,kirbyfan64/jhc,kirbyfan64/jhc