Merge branch 'PHP-7.0' into PHP-7.1

* PHP-7.0:
  Fixed bug #73916 (zend_print_flat_zval_r doesn't consider reference)

Author: laruence

Zend/tests/bug73916.phpt

@@ -0,0 +1,16 @@
+--TEST--
+Bug #73916 (zend_print_flat_zval_r doesn't consider reference)
+--FILE--
+<?php
+$a = array('a');
+class b{};
+$b = new b;
+$test[] =& $a;
+$test[] =& $b;
+test($test);
+function test() {
+	debug_print_backtrace();
+}
+?>
+--EXPECTF--
+#0  test(Array ([0] => Array ([0] => a),[1] => b Object ())) called at [%sbug73916.php:%d]