)
import IdInfo ( ArityInfo, exactArity )
import Class ( classBigSig, classTyCon )
-import TyCon ( isNewTyCon, isDataTyCon, isAlgTyCon, tyConDataCons )
+import TyCon ( isNewTyCon, tyConDataCons )
import FieldLabel ( FieldLabel )
import PrelVals ( pAT_ERROR_ID )
import Maybes