mkCharExpr     :: Char             -> CoreExpr      -- Result = C# c :: Int
mkCharExpr c = mkConApp charDataCon [mkCharLit c]
mkCharExpr     :: Char             -> CoreExpr
mkCharExpr c = mkConApp charDataCon [mkCharLit c]
mkCharExpr c = mkConApp charDataCon [mkCharLit c]