/usr/share/php/Symfony/Component/Form/ChoiceList/ is in php-symfony-form 3.4.6+dfsg-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/php/Symfony/Component/Form/ChoiceList/ArrayChoiceList.php
/usr/share/php/Symfony/Component/Form/ChoiceList/ChoiceListInterface.php
/usr/share/php/Symfony/Component/Form/ChoiceList/Factory/
/usr/share/php/Symfony/Component/Form/ChoiceList/Factory/CachingFactoryDecorator.php
/usr/share/php/Symfony/Component/Form/ChoiceList/Factory/ChoiceListFactoryInterface.php
/usr/share/php/Symfony/Component/Form/ChoiceList/Factory/DefaultChoiceListFactory.php
/usr/share/php/Symfony/Component/Form/ChoiceList/Factory/PropertyAccessDecorator.php
/usr/share/php/Symfony/Component/Form/ChoiceList/LazyChoiceList.php
/usr/share/php/Symfony/Component/Form/ChoiceList/Loader/
/usr/share/php/Symfony/Component/Form/ChoiceList/Loader/CallbackChoiceLoader.php
/usr/share/php/Symfony/Component/Form/ChoiceList/Loader/ChoiceLoaderInterface.php
/usr/share/php/Symfony/Component/Form/ChoiceList/View/
/usr/share/php/Symfony/Component/Form/ChoiceList/View/ChoiceGroupView.php
/usr/share/php/Symfony/Component/Form/ChoiceList/View/ChoiceListView.php
/usr/share/php/Symfony/Component/Form/ChoiceList/View/ChoiceView.php