private val useSiteModule: KtSourceModule? = null
) : AnalysisHandlerExtension {
    internal companion object {
        fun getInstance(area: AreaInstance, module: KtModule): KtFe10AnalysisHandlerExtension {
            val extensions = AnalysisHandlerExtension.extensionPointName.getExtensions(area)
                .filterIsInstance<KtFe10AnalysisHandlerExtension>()
            return extensions.firstOrNull { it.useSiteModule == module }

        IncompatibleClassImpl(
            firDiagnostic.a,
            firDiagnostic.b,
            firDiagnostic as KtPsiDiagnostic,
            token,
        )
    }
    add(FirErrors.PRE_RELEASE_CLASS) { firDiagnostic ->
        PreReleaseClassImpl(
            firDiagnostic.a,
            firDiagnostic as KtPsiDiagnostic,
            token,
        )
    }