/usr/ is in php-symfony-debug 2.7.10-0ubuntu2.
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/usr/share/
/usr/share/php/
/usr/share/php/Symfony/
/usr/share/php/Symfony/Component/
/usr/share/php/Symfony/Component/Debug/
/usr/share/php/Symfony/Component/Debug/Debug.php
/usr/share/php/Symfony/Component/Debug/ExceptionHandler.php
/usr/share/php/Symfony/Component/Debug/autoload.php
/usr/share/php/Symfony/Component/Debug/Exception/
/usr/share/php/Symfony/Component/Debug/Exception/FatalThrowableError.php
/usr/share/php/Symfony/Component/Debug/Exception/DummyException.php
/usr/share/php/Symfony/Component/Debug/Exception/FatalErrorException.php
/usr/share/php/Symfony/Component/Debug/Exception/FlattenException.php
/usr/share/php/Symfony/Component/Debug/Exception/UndefinedMethodException.php
/usr/share/php/Symfony/Component/Debug/Exception/UndefinedFunctionException.php
/usr/share/php/Symfony/Component/Debug/Exception/OutOfMemoryException.php
/usr/share/php/Symfony/Component/Debug/Exception/ContextErrorException.php
/usr/share/php/Symfony/Component/Debug/Exception/ClassNotFoundException.php
/usr/share/php/Symfony/Component/Debug/DebugClassLoader.php
/usr/share/php/Symfony/Component/Debug/ErrorHandler.php
/usr/share/php/Symfony/Component/Debug/FatalErrorHandler/
/usr/share/php/Symfony/Component/Debug/FatalErrorHandler/UndefinedFunctionFatalErrorHandler.php
/usr/share/php/Symfony/Component/Debug/FatalErrorHandler/ClassNotFoundFatalErrorHandler.php
/usr/share/php/Symfony/Component/Debug/FatalErrorHandler/FatalErrorHandlerInterface.php
/usr/share/php/Symfony/Component/Debug/FatalErrorHandler/UndefinedMethodFatalErrorHandler.php
/usr/share/doc/
/usr/share/doc/php-symfony-debug/
/usr/share/doc/php-symfony-debug/copyright
/usr/share/doc/php-symfony-debug/changelog.Debian.gz
/usr/share/doc/php-symfony-debug/README.md
/usr/share/doc/php-symfony-debug/README.Debian