}

internal fun ConeDiagnostic.getCandidateSymbols(): Collection<FirBasedSymbol<*>> =
    when (this) {
        is ConeHiddenCandidateError -> {
            // Candidate with @Deprecated(DeprecationLevel.HIDDEN)
            emptyList()
        }
        is ConeDiagnosticWithCandidates -> candidateSymbols
        is ConeDiagnosticWithSymbol<*> -> listOf(symbol)