return when (this) {
            is KtSuccessCallInfo -> listOf(KtApplicableCallCandidateInfo(call, isInBestCandidates = true))
            is KtErrorCallInfo -> candidateCalls.map { KtInapplicableCallCandidateInfo(it, isInBestCandidates = true, diagnostic) }
            null -> emptyList()
        }
    }