RedundantLabelWarningImpl(
            firDiagnostic as KtPsiDiagnostic,
            token,
        )
    }
    add(FirErrors.MULTIPLE_LABELS_ARE_FORBIDDEN) { firDiagnostic ->
        MultipleLabelsAreForbiddenImpl(
            firDiagnostic as KtPsiDiagnostic,
            token,
        )
    }
    add(FirErrors.DEPRECATED_ACCESS_TO_ENUM_ENTRY_COMPANION_PROPERTY) { firDiagnostic ->

    firDiagnostic: KtPsiDiagnostic,
    token: KtLifetimeToken,
) : KtAbstractFirDiagnostic<KtLabelReferenceExpression>(firDiagnostic, token), KtFirDiagnostic.RedundantLabelWarning

internal class MultipleLabelsAreForbiddenImpl(
    firDiagnostic: KtPsiDiagnostic,
    token: KtLifetimeToken,
) : KtAbstractFirDiagnostic<KtLabelReferenceExpression>(firDiagnostic, token), KtFirDiagnostic.MultipleLabelsAreForbidden