else -> null
        }

        return (unambiguousSymbol as? FirCallableSymbol<*>)
    }

    /**
     * If [namedReference] is ambiguous and all candidates point to the callables with same callableId,
     * returns the first candidate; otherwise returns null.
     */
    private fun getSingleUnambiguousCandidate(namedReference: FirErrorNamedReference): FirCallableSymbol<*>? {