Merge branch 'PHP-7.1' into PHP-7.2

* PHP-7.1:
  Apply upstream patch for CVE-2016-1283

Author: weltling

ext/pcre/tests/bug75207.phpt

@@ -0,0 +1,10 @@
+--TEST--
+CVE-2016-1283, see bug #75207
+--FILE--
+<?php
+preg_match("/š(?:F?+(?:^(?(R)a+\"){99}-))(?J)(?'R'(?'R'<((?'RR'(?'R'\){97)?J)?J)(?'R'(?'R'\){99|(:(?|(?'R')(\k'R')|((?'R')))H'R'R)(H'R))))))/", "*b\dc");
+?>
+==DONE==
+--EXPECTF--
+Warning: preg_match(): Compilation failed: unmatched parentheses at offset %d in %s on line %d
+==DONE==