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

        val typeContext = rootModuleSession.typeContext

        val firClass = symbol.firSymbol.fir
        val type = ConeClassLikeTypeImpl(
            firClass.symbol.toLookupTag(),
            firClass.typeParameters.map { ConeTypeParameterTypeImpl(it.symbol.toLookupTag(), isNullable = false) }.toTypedArray(),
            isNullable = false
        )

        return type.asKtType()
    }

            // declaration's own parameters
            originalDeclaration.typeParameters.mapTo(this) { it.symbol.toLookupTag() }

            // captured outer parameters
            containingClass.typeParameters.mapNotNullTo(this) {
                (it as? FirOuterClassTypeParameterRef)?.symbol?.toLookupTag()
            }
        }

        val usedTypeParameters = collectReferencedTypeParameters(originalDeclaration)

        val candidates = AllCandidatesResolver(analysisSession.useSiteSession)
            .getAllCandidatesForDelegatedConstructor(analysisSession.firResolveSession, this, derivedClass.toLookupTag(), psi)

        return candidates.mapNotNull {
            convertToKtCallCandidateInfo(
                this,
                psi,
                it.candidate,
                it.isInBestCandidates,