/usr/share/php/Symfony/Bundle/ is in php-symfony-web-server-bundle 3.4.6+dfsg-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/php/Symfony/Bundle/WebServerBundle/
/usr/share/php/Symfony/Bundle/WebServerBundle/Command/
/usr/share/php/Symfony/Bundle/WebServerBundle/Command/ServerCommand.php
/usr/share/php/Symfony/Bundle/WebServerBundle/Command/ServerLogCommand.php
/usr/share/php/Symfony/Bundle/WebServerBundle/Command/ServerRunCommand.php
/usr/share/php/Symfony/Bundle/WebServerBundle/Command/ServerStartCommand.php
/usr/share/php/Symfony/Bundle/WebServerBundle/Command/ServerStatusCommand.php
/usr/share/php/Symfony/Bundle/WebServerBundle/Command/ServerStopCommand.php
/usr/share/php/Symfony/Bundle/WebServerBundle/DependencyInjection/
/usr/share/php/Symfony/Bundle/WebServerBundle/DependencyInjection/WebServerExtension.php
/usr/share/php/Symfony/Bundle/WebServerBundle/Resources/
/usr/share/php/Symfony/Bundle/WebServerBundle/Resources/config/
/usr/share/php/Symfony/Bundle/WebServerBundle/Resources/config/webserver.xml
/usr/share/php/Symfony/Bundle/WebServerBundle/Resources/router.php
/usr/share/php/Symfony/Bundle/WebServerBundle/WebServer.php
/usr/share/php/Symfony/Bundle/WebServerBundle/WebServerBundle.php
/usr/share/php/Symfony/Bundle/WebServerBundle/WebServerConfig.php
/usr/share/php/Symfony/Bundle/WebServerBundle/autoload.php