*/
@Suppress("UNCHECKED_CAST")
private fun <T : CallableDescriptor> T.unwrapUseSiteSubstitutionOverride(): T {
    var current: CallableDescriptor = this
    while (original != current) {
        current = current.original
    }
    return current as T
}

internal fun KotlinType.toKtType(analysisContext: Fe10AnalysisContext): KaType {

            val mappingForType = type.toTypeArgumentMapping() ?: continue

            val queue = ArrayDeque<TypeArgumentMapping>()
            queue.addLast(mappingForType)

            while (queue.isNotEmpty()) {
                val (typeParameterOwner, mapping) = queue.removeFirst()
                for (superType in typeParameterOwner.typeConstructor.supertypes) {

    private fun KaCallInfo?.toKtCallCandidateInfos(bestCandidateDescriptors: Set<CallableDescriptor>): List<KaCallCandidateInfo> {
        // TODO: We should prefer to compare symbols instead of descriptors, but we can't do so while symbols are not cached.
        fun KaCall.isInBestCandidates(): Boolean {
            val descriptor = this.safeAs<KaCallableMemberCall<*, *>>()?.descriptor as? CallableDescriptor