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