/usr/share/php/Symfony/Bridge/PhpUnit/Legacy/ is in php-symfony-phpunit-bridge 3.4.6+dfsg-1.
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/usr/share/php/Symfony/Bridge/PhpUnit/Legacy/Command.php
/usr/share/php/Symfony/Bridge/PhpUnit/Legacy/CoverageListenerForV5.php
/usr/share/php/Symfony/Bridge/PhpUnit/Legacy/CoverageListenerForV6.php
/usr/share/php/Symfony/Bridge/PhpUnit/Legacy/CoverageListenerForV7.php
/usr/share/php/Symfony/Bridge/PhpUnit/Legacy/CoverageListenerTrait.php
/usr/share/php/Symfony/Bridge/PhpUnit/Legacy/SymfonyTestsListenerForV5.php
/usr/share/php/Symfony/Bridge/PhpUnit/Legacy/SymfonyTestsListenerForV6.php
/usr/share/php/Symfony/Bridge/PhpUnit/Legacy/SymfonyTestsListenerForV7.php
/usr/share/php/Symfony/Bridge/PhpUnit/Legacy/SymfonyTestsListenerTrait.php
/usr/share/php/Symfony/Bridge/PhpUnit/Legacy/TestRunner.php