-- |Collect the set of TyCons that occur in these types.
--
tyConsOfTypes :: [Type] -> UniqSet TyCon
tyConsOfTypes = unionManyUniqSets . map tyConsOfType
tyConsOfTypes :: [Type] -> UniqSet TyCon
tyConsOfTypes = unionManyUniqSets . map tyConsOfType
tyConsOfTypes = unionManyUniqSets . map tyConsOfType