val firSubstitution = buildMap {
            builder.mappings.forEach { (ktTypeParameterSymbol, ktType) ->
                check(ktTypeParameterSymbol is KtFirTypeParameterSymbol)
                check(ktType is KtFirType)
                put(ktTypeParameterSymbol.firSymbol, ktType.coneType)
            }
        }

                classSymbol.toLookupTag()
            }
            is KtClassTypeBuilder.BySymbol -> {
                val symbol = builder.symbol
                check(symbol is KtFirSymbol<*>)
                (symbol.firSymbol as FirClassLikeSymbol<*>).toLookupTag()
            }
        }

        val typeContext = rootModuleSession.typeContext

### Dependency verification

We have a [dependencies verification](https://docs.gradle.org/current/userguide/dependency_verification.html) feature enabled in the
repository for all Gradle builds. Gradle will check hashes (md5 and sha256) of used dependencies and will fail builds with
`Dependency verification failed` errors when local artifacts are absent or have different hashes listed in the

        explicitReceiver: KtExpression?
    ): KtCompletionExtensionCandidateChecker = analysisSession.withValidityAssertion {
        return LazyKtCompletionExtensionCandidateChecker {
            // Double validity check is needed, as the checker may be requested some time later
            analysisSession.withValidityAssertion {
                KtFirCompletionExtensionCandidateChecker(analysisSession, nameExpression, explicitReceiver, originalFile)

    expression: KtConstructorDelegationReferenceExpression
) : KtConstructorDelegationReference(expression), KtFirReference {

    override fun KtAnalysisSession.resolveToSymbols(): Collection<KtSymbol> {
        check(this is KtFirAnalysisSession)
        val fir = expression.getOrBuildFirSafe<FirDelegatedConstructorCall>(firResolveSession) ?: return emptyList()

open class KtFirForLoopInReference(expression: KtForExpression) : KtForLoopInReference(expression), KtFirReference {
    override fun KtAnalysisSession.resolveToSymbols(): Collection<KtSymbol> {
        check(this is KtFirAnalysisSession)
        val firLoop = expression.getOrBuildFirSafe<FirWhileLoop>(firResolveSession) ?: return emptyList()
        val condition = firLoop.condition as? FirFunctionCall

        componentProvider: ComponentProvider
    ): AnalysisResult? {
        // Single-module [KtFe10AnalysisHandlerExtension] can be registered without specific use-site module.
        // Simple null-check below will skip the bail-out.
        if (useSiteModule != null &&
            module.name.asString().removeSurrounding("<", ">") != useSiteModule.moduleName
        ) {

) : KtSubtypingComponent(), KtFirAnalysisSessionComponent {
    override fun isEqualTo(first: KtType, second: KtType): Boolean {
        second.assertIsValidAndAccessible()
        check(first is KtFirType)
        check(second is KtFirType)
        return AbstractTypeChecker.equalTypes(
            createTypeCheckerContext(),
            first.coneType,
            second.coneType
        )
    }

                if (superClassSymbol == superSymbol) {
                    result = stack.toList()
                    check(stack.removeLast().second == superClassSymbol)
                    break
                }
                dfs(superClassSymbol)
                check(stack.removeLast().second == superClassSymbol)
            }
        }

        dfs(baseSymbol)
        return result?.reversed()
    }

    @Deprecated("Consider using org.jetbrains.kotlin.analysis.api.KtAnalysisSession.restoreSymbol")
    override fun restoreSymbol(analysisSession: KtAnalysisSession): KtPackageSymbol {
        check(analysisSession is KtFe10AnalysisSession)
        return KtFe10PackageSymbol(packageName, analysisSession.analysisContext)
    }