val substitutor = EnhancedForWarningConeSubstitutor(typeContext)
        val enhancedConeType = substitutor.substituteType(coneType)

        return enhancedConeType?.asKtType()
    }

    override fun buildSelfClassType(symbol: KtNamedClassOrObjectSymbol): KtType {
        require(symbol is KtFirNamedClassOrObjectSymbol)
        symbol.firSymbol.lazyResolveToPhase(FirResolvePhase.SUPER_TYPES)
        val firClass = symbol.firSymbol.fir