Merge branch 'PHP-7.1' of git.php.net:/php-src into PHP-7.1

* 'PHP-7.1' of git.php.net:/php-src:
  Fixed bug #67707 IV not needed for ECB encryption mode, but it returns a warning
  Add support for "xfail" to phpt SKIPIF sections
  Fixed #73907 (nextSibling property not included in var_dump of DOMNode)
  Fixed bug #61858 (DOMAttr debug info generates E_WARNING)
  Fix glob-wrapper.phpt to not fail in Windows
  Set a session path for this test
  Fix #73893: A hidden danger of death cycle in a function of gd
  Missing %s
  Ok, maybe Nikita is right. We should default this on.
  Missed one. This needs gc as well
  These tests expect gc to be enabled