import org.jetbrains.kotlin.utils.addToStdlib.firstIsInstanceOrNull
import java.text.StringCharacterIterator

internal class KtFirPsiTypeProvider(
    override val analysisSession: KtFirAnalysisSession,
    override val token: KtLifetimeToken,
) : KtPsiTypeProvider(), KtFirAnalysisSessionComponent {
    override fun asPsiType(
        type: KtType,
        useSitePosition: PsiElement,
        allowErrorTypes: Boolean,

import org.jetbrains.kotlin.utils.exceptions.errorWithAttachment
import org.jetbrains.kotlin.utils.exceptions.withPsiEntry

internal class KtFirImportOptimizer(
    private val analysisSession: KtFirAnalysisSession,
    override val token: KtLifetimeToken,
    private val firResolveSession: LLFirResolveSession
) : KtImportOptimizer() {
    private val firSession: FirSession
        get() = firResolveSession.useSiteFirSession

import org.jetbrains.kotlin.utils.exceptions.withPsiEntry

internal class KtFirExpressionInfoProvider(
    override val analysisSession: KtFirAnalysisSession,
    override val token: KtLifetimeToken,
) : KtExpressionInfoProvider(), KtFirAnalysisSessionComponent {
    override fun getReturnExpressionTargetSymbol(returnExpression: KtReturnExpression): KtCallableSymbol? {

import org.jetbrains.kotlin.utils.exceptions.withPsiEntry

internal class KtFirExpressionTypeProvider(
    override val analysisSession: KtFirAnalysisSession,
    override val token: KtLifetimeToken,
) : KtExpressionTypeProvider(), KtFirAnalysisSessionComponent {

    override fun getKtExpressionType(expression: KtExpression): KtType? {