= (us, Var v) -- so that we can spot when we pass them twice
argToPat env us arg
- = (us1, Var (mkSysLocal SLIT("sc") (uniqFromSupply us2) (exprType arg)))
+ = (us1, Var (mkSysLocal FSLIT("sc") (uniqFromSupply us2) (exprType arg)))
where
(us1,us2) = splitUniqSupply us