/usr/share/php/FSHL/ is in php-fshl 2.1.0-2build1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/php/FSHL/Generator.php
/usr/share/php/FSHL/Highlighter.php
/usr/share/php/FSHL/Lexer/
/usr/share/php/FSHL/Lexer.php
/usr/share/php/FSHL/Lexer/Cache/
/usr/share/php/FSHL/Lexer/Cache/Cpp.php
/usr/share/php/FSHL/Lexer/Cache/Css.php
/usr/share/php/FSHL/Lexer/Cache/Html.php
/usr/share/php/FSHL/Lexer/Cache/HtmlOnly.php
/usr/share/php/FSHL/Lexer/Cache/Java.php
/usr/share/php/FSHL/Lexer/Cache/Javascript.php
/usr/share/php/FSHL/Lexer/Cache/Minimal.php
/usr/share/php/FSHL/Lexer/Cache/Php.php
/usr/share/php/FSHL/Lexer/Cache/Python.php
/usr/share/php/FSHL/Lexer/Cache/Sql.php
/usr/share/php/FSHL/Lexer/Cache/Texy.php
/usr/share/php/FSHL/Lexer/Cpp.php
/usr/share/php/FSHL/Lexer/Css.php
/usr/share/php/FSHL/Lexer/Html.php
/usr/share/php/FSHL/Lexer/HtmlOnly.php
/usr/share/php/FSHL/Lexer/Java.php
/usr/share/php/FSHL/Lexer/Javascript.php
/usr/share/php/FSHL/Lexer/Minimal.php
/usr/share/php/FSHL/Lexer/Php.php
/usr/share/php/FSHL/Lexer/Python.php
/usr/share/php/FSHL/Lexer/Sql.php
/usr/share/php/FSHL/Lexer/Texy.php
/usr/share/php/FSHL/Output/
/usr/share/php/FSHL/Output.php
/usr/share/php/FSHL/Output/Html.php
/usr/share/php/FSHL/Output/HtmlManual.php
/usr/share/php/FSHL/autoload.php