override val conjuncts: List<KtType> by cached {
        val result = ArrayList<KtType>(supertypes.size)
        val isNullable = fe10Type.isMarkedNullable
        for (supertype in supertypes) {
            val mappedSupertype = if (isNullable) supertype.makeNullable() else supertype
            result += mappedSupertype.toKtType(analysisContext)
        }
        return@cached result
    }