import {-# SOURCE #-} Match ( match )
-import HsSyn ( Pat(..), HsConDetails(..), isEmptyLHsBinds )
+import HsSyn ( Pat(..), HsConDetails(..) )
import DsBinds ( dsHsNestedBinds )
import DataCon ( isVanillaDataCon, dataConTyVars, dataConOrigArgTys )
import TcType ( tcTyConAppArgs )