import CoreUtils ( exprIsValue, cheapEqExpr, exprIsConApp_maybe )
import Type ( splitTyConApp_maybe )
import OccName ( occNameUserString)
-import PrelNames ( unpackCStringFoldr_RDR )
-import Unique ( unpackCStringFoldrIdKey, hasKey )
+import PrelNames ( unpackCStringFoldr_RDR, unpackCStringFoldrIdKey, hasKey )
import Bits ( Bits(..) )
import Word ( Word64 )
import Outputable