/usr/share/php/Symfony/ is in php-symfony-debug-bundle 3.4.6+dfsg-1.
This file is owned by root:root, with mode 0o755.
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/usr/share/php/Symfony/Bundle/
/usr/share/php/Symfony/Bundle/DebugBundle/
/usr/share/php/Symfony/Bundle/DebugBundle/DebugBundle.php
/usr/share/php/Symfony/Bundle/DebugBundle/DependencyInjection/
/usr/share/php/Symfony/Bundle/DebugBundle/DependencyInjection/Compiler/
/usr/share/php/Symfony/Bundle/DebugBundle/DependencyInjection/Compiler/DumpDataCollectorPass.php
/usr/share/php/Symfony/Bundle/DebugBundle/DependencyInjection/Configuration.php
/usr/share/php/Symfony/Bundle/DebugBundle/DependencyInjection/DebugExtension.php
/usr/share/php/Symfony/Bundle/DebugBundle/Resources/
/usr/share/php/Symfony/Bundle/DebugBundle/Resources/config/
/usr/share/php/Symfony/Bundle/DebugBundle/Resources/config/schema/
/usr/share/php/Symfony/Bundle/DebugBundle/Resources/config/schema/debug-1.0.xsd
/usr/share/php/Symfony/Bundle/DebugBundle/Resources/config/services.xml
/usr/share/php/Symfony/Bundle/DebugBundle/Resources/views/
/usr/share/php/Symfony/Bundle/DebugBundle/Resources/views/Profiler/
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/usr/share/php/Symfony/Bundle/DebugBundle/Resources/views/Profiler/icon.svg
/usr/share/php/Symfony/Bundle/DebugBundle/autoload.php