import DsUtils
import CoreUtils ( mkCoreIfThenElse )
-import PrelInfo ( stringTy, nON_EXHAUSTIVE_GUARDS_ERROR_ID )
+import PrelVals ( nON_EXHAUSTIVE_GUARDS_ERROR_ID )
import PprStyle ( PprStyle(..) )
import Pretty ( ppShow )
import SrcLoc ( SrcLoc{-instance-} )