is KtFirPsiJavaClassSymbol -> firSymbol.fir
        is KtFirAnonymousObjectSymbol -> firSymbol.fir
        else -> error(
            "`${this::class.qualifiedName}` needs to be specially handled by the scope provider or is an unknown" +
                    " ${KtSymbolWithDeclarations::class.simpleName} implementation."
        )
    }

    override fun getMemberScope(classSymbol: KtSymbolWithMembers): KtScope {