/usr/share/php/Symfony/Component/Form/Extension/Core/Type/ is in php-symfony-form 2.7.10-0ubuntu2.
This file is owned by root:root, with mode 0o755.
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/usr/share/php/Symfony/Component/Form/Extension/Core/Type/BaseType.php
/usr/share/php/Symfony/Component/Form/Extension/Core/Type/BirthdayType.php
/usr/share/php/Symfony/Component/Form/Extension/Core/Type/ButtonType.php
/usr/share/php/Symfony/Component/Form/Extension/Core/Type/CheckboxType.php
/usr/share/php/Symfony/Component/Form/Extension/Core/Type/ChoiceType.php
/usr/share/php/Symfony/Component/Form/Extension/Core/Type/CollectionType.php
/usr/share/php/Symfony/Component/Form/Extension/Core/Type/CountryType.php
/usr/share/php/Symfony/Component/Form/Extension/Core/Type/CurrencyType.php
/usr/share/php/Symfony/Component/Form/Extension/Core/Type/DateTimeType.php
/usr/share/php/Symfony/Component/Form/Extension/Core/Type/DateType.php
/usr/share/php/Symfony/Component/Form/Extension/Core/Type/EmailType.php
/usr/share/php/Symfony/Component/Form/Extension/Core/Type/FileType.php
/usr/share/php/Symfony/Component/Form/Extension/Core/Type/FormType.php
/usr/share/php/Symfony/Component/Form/Extension/Core/Type/HiddenType.php
/usr/share/php/Symfony/Component/Form/Extension/Core/Type/IntegerType.php
/usr/share/php/Symfony/Component/Form/Extension/Core/Type/LanguageType.php
/usr/share/php/Symfony/Component/Form/Extension/Core/Type/LocaleType.php
/usr/share/php/Symfony/Component/Form/Extension/Core/Type/MoneyType.php
/usr/share/php/Symfony/Component/Form/Extension/Core/Type/NumberType.php
/usr/share/php/Symfony/Component/Form/Extension/Core/Type/PasswordType.php
/usr/share/php/Symfony/Component/Form/Extension/Core/Type/PercentType.php
/usr/share/php/Symfony/Component/Form/Extension/Core/Type/RadioType.php
/usr/share/php/Symfony/Component/Form/Extension/Core/Type/RepeatedType.php
/usr/share/php/Symfony/Component/Form/Extension/Core/Type/ResetType.php
/usr/share/php/Symfony/Component/Form/Extension/Core/Type/SearchType.php
/usr/share/php/Symfony/Component/Form/Extension/Core/Type/SubmitType.php
/usr/share/php/Symfony/Component/Form/Extension/Core/Type/TextType.php
/usr/share/php/Symfony/Component/Form/Extension/Core/Type/TextareaType.php
/usr/share/php/Symfony/Component/Form/Extension/Core/Type/TimeType.php
/usr/share/php/Symfony/Component/Form/Extension/Core/Type/TimezoneType.php
/usr/share/php/Symfony/Component/Form/Extension/Core/Type/UrlType.php