Merge branch 'PHP-5.6'

* PHP-5.6:
  new test, missing in ea466a3

ext/spl/tests/unserialize.phpt

@@ -0,0 +1,43 @@
+--TEST--
+SPL: unserialize with no data (for PHPUnit)
+--FILE--
+<?php
+
+$types = array('SplDoublyLinkedList', 'SplObjectStorage', 'ArrayObject');
+
+foreach ($types as $type) {
+	// serialize an empty new object
+	$exp = serialize(new $type());
+	// hack to instanciate an object without constructor
+	$str = sprintf('C:%d:"%s":0:{}', strlen($type), $type);
+	$obj = unserialize($str);
+	var_dump($obj);
+	// serialize result
+	$out = serialize($obj);
+	// both should match
+	var_dump($exp === $out);
+}
+?>
+===DONE===
+--EXPECTF--
+object(SplDoublyLinkedList)#%d (2) {
+  ["flags":"SplDoublyLinkedList":private]=>
+  int(0)
+  ["dllist":"SplDoublyLinkedList":private]=>
+  array(0) {
+  }
+}
+bool(true)
+object(SplObjectStorage)#%d (1) {
+  ["storage":"SplObjectStorage":private]=>
+  array(0) {
+  }
+}
+bool(true)
+object(ArrayObject)#%d (1) {
+  ["storage":"ArrayObject":private]=>
+  array(0) {
+  }
+}
+bool(true)
+===DONE===