/usr/share/php/Doctrine/ORM/Persisters/ is in php-doctrine-orm 2.5.14+dfsg-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/php/Doctrine/ORM/Persisters/Collection/
/usr/share/php/Doctrine/ORM/Persisters/Collection/AbstractCollectionPersister.php
/usr/share/php/Doctrine/ORM/Persisters/Collection/CollectionPersister.php
/usr/share/php/Doctrine/ORM/Persisters/Collection/ManyToManyPersister.php
/usr/share/php/Doctrine/ORM/Persisters/Collection/OneToManyPersister.php
/usr/share/php/Doctrine/ORM/Persisters/Entity/
/usr/share/php/Doctrine/ORM/Persisters/Entity/AbstractEntityInheritancePersister.php
/usr/share/php/Doctrine/ORM/Persisters/Entity/BasicEntityPersister.php
/usr/share/php/Doctrine/ORM/Persisters/Entity/CachedPersisterContext.php
/usr/share/php/Doctrine/ORM/Persisters/Entity/EntityPersister.php
/usr/share/php/Doctrine/ORM/Persisters/Entity/JoinedSubclassPersister.php
/usr/share/php/Doctrine/ORM/Persisters/Entity/SingleTablePersister.php
/usr/share/php/Doctrine/ORM/Persisters/PersisterException.php
/usr/share/php/Doctrine/ORM/Persisters/SqlExpressionVisitor.php
/usr/share/php/Doctrine/ORM/Persisters/SqlValueVisitor.php