/usr/share/php/PhpParser/Node/Scalar/ is in php-parser 1.4.1-1ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/php/PhpParser/Node/Scalar/DNumber.php
/usr/share/php/PhpParser/Node/Scalar/Encapsed.php
/usr/share/php/PhpParser/Node/Scalar/LNumber.php
/usr/share/php/PhpParser/Node/Scalar/MagicConst/
/usr/share/php/PhpParser/Node/Scalar/MagicConst.php
/usr/share/php/PhpParser/Node/Scalar/MagicConst/Class_.php
/usr/share/php/PhpParser/Node/Scalar/MagicConst/Dir.php
/usr/share/php/PhpParser/Node/Scalar/MagicConst/File.php
/usr/share/php/PhpParser/Node/Scalar/MagicConst/Function_.php
/usr/share/php/PhpParser/Node/Scalar/MagicConst/Line.php
/usr/share/php/PhpParser/Node/Scalar/MagicConst/Method.php
/usr/share/php/PhpParser/Node/Scalar/MagicConst/Namespace_.php
/usr/share/php/PhpParser/Node/Scalar/MagicConst/Trait_.php
/usr/share/php/PhpParser/Node/Scalar/String_.php