* 'PHP-7.1' of git.php.net:/php-src:
Fixed bug #46781 (BC math handles minus zero incorrectly)
Fork test to keep up with libxsl >= 1.1.30
Add symbol to libxml exports
Fix test compat with libxml2 2.9.5
Fix test compat with libxml2 2.9.5
Fix test portability
Fix test compatibility with libxml2 2.9.5