override val substitutorProviderImpl: KaSubstitutorProvider = KaFirSubstitutorProvider(this)

    override val dataFlowInfoProviderImpl: KaDataFlowInfoProvider = KaFirDataFlowInfoProvider(this)

    override val klibSourceFileProviderImpl: KaKlibSourceFileNameProvider = KaFirKlibSourceFileNameProvider(this)

    internal val useSiteSession: FirSession get() = firResolveSession.useSiteFirSession

import org.jetbrains.kotlin.utils.exceptions.withPsiEntry
import java.util.Optional
import kotlin.jvm.optionals.getOrNull
import kotlin.math.sign

@OptIn(KaAnalysisNonPublicApi::class)
internal class KaFirDataFlowInfoProvider(override val analysisSession: KaFirSession) : KaDataFlowInfoProvider() {
    private val firResolveSession: LLFirResolveSession
        get() = analysisSession.firResolveSession