/usr/share/php/SebastianBergmann/Comparator/ is in phpunit-comparator 2.1.3-1ubuntu2.
This file is owned by root:root, with mode 0o755.
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/usr/share/php/SebastianBergmann/Comparator/ArrayComparator.php
/usr/share/php/SebastianBergmann/Comparator/Comparator.php
/usr/share/php/SebastianBergmann/Comparator/ComparisonFailure.php
/usr/share/php/SebastianBergmann/Comparator/DOMNodeComparator.php
/usr/share/php/SebastianBergmann/Comparator/DateTimeComparator.php
/usr/share/php/SebastianBergmann/Comparator/DoubleComparator.php
/usr/share/php/SebastianBergmann/Comparator/ExceptionComparator.php
/usr/share/php/SebastianBergmann/Comparator/Factory.php
/usr/share/php/SebastianBergmann/Comparator/MockObjectComparator.php
/usr/share/php/SebastianBergmann/Comparator/NumericComparator.php
/usr/share/php/SebastianBergmann/Comparator/ObjectComparator.php
/usr/share/php/SebastianBergmann/Comparator/ResourceComparator.php
/usr/share/php/SebastianBergmann/Comparator/ScalarComparator.php
/usr/share/php/SebastianBergmann/Comparator/SplObjectStorageComparator.php
/usr/share/php/SebastianBergmann/Comparator/TypeComparator.php
/usr/share/php/SebastianBergmann/Comparator/autoload.php