.commonSuperTypeOrNull(types.map { it.coneType })
            ?.asKtType()
    }

    override fun getKtType(ktTypeReference: KtTypeReference): KaType {
        val fir = ktTypeReference.getFirBySymbols() ?: ktTypeReference.getOrBuildFirOfType<FirElement>(firResolveSession)
        return when (fir) {
            is FirResolvedTypeRef -> fir.coneType.asKtType()