OptInIsNotEnabledImpl(
            firDiagnostic as KtPsiDiagnostic,
            token,
        )
    }
    add(FirErrors.OPT_IN_CAN_ONLY_BE_USED_AS_ANNOTATION) { firDiagnostic ->
        OptInCanOnlyBeUsedAsAnnotationImpl(
            firDiagnostic as KtPsiDiagnostic,
            token,
        )
    }
    add(FirErrors.OPT_IN_MARKER_CAN_ONLY_BE_USED_AS_ANNOTATION_OR_ARGUMENT_IN_OPT_IN) { firDiagnostic ->

    firDiagnostic: KtPsiDiagnostic,
    token: KaLifetimeToken,
) : KaAbstractFirDiagnostic<KtAnnotationEntry>(firDiagnostic, token), KaFirDiagnostic.OptInIsNotEnabled

internal class OptInCanOnlyBeUsedAsAnnotationImpl(
    firDiagnostic: KtPsiDiagnostic,
    token: KaLifetimeToken,
) : KaAbstractFirDiagnostic<PsiElement>(firDiagnostic, token), KaFirDiagnostic.OptInCanOnlyBeUsedAsAnnotation