/usr/share/php/Symfony/Component/Routing/Matcher/ is in php-symfony-routing 2.3.21+dfsg-4+deb8u3.
This file is owned by root:root, with mode 0o755.
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/usr/share/php/Symfony/Component/Routing/Matcher/ApacheUrlMatcher.php
/usr/share/php/Symfony/Component/Routing/Matcher/Dumper/
/usr/share/php/Symfony/Component/Routing/Matcher/Dumper/ApacheMatcherDumper.php
/usr/share/php/Symfony/Component/Routing/Matcher/Dumper/DumperCollection.php
/usr/share/php/Symfony/Component/Routing/Matcher/Dumper/DumperPrefixCollection.php
/usr/share/php/Symfony/Component/Routing/Matcher/Dumper/DumperRoute.php
/usr/share/php/Symfony/Component/Routing/Matcher/Dumper/MatcherDumper.php
/usr/share/php/Symfony/Component/Routing/Matcher/Dumper/MatcherDumperInterface.php
/usr/share/php/Symfony/Component/Routing/Matcher/Dumper/PhpMatcherDumper.php
/usr/share/php/Symfony/Component/Routing/Matcher/RedirectableUrlMatcher.php
/usr/share/php/Symfony/Component/Routing/Matcher/RedirectableUrlMatcherInterface.php
/usr/share/php/Symfony/Component/Routing/Matcher/RequestMatcherInterface.php
/usr/share/php/Symfony/Component/Routing/Matcher/TraceableUrlMatcher.php
/usr/share/php/Symfony/Component/Routing/Matcher/UrlMatcher.php
/usr/share/php/Symfony/Component/Routing/Matcher/UrlMatcherInterface.php