Merge branch 'PHP-8.1'

* PHP-8.1:
  Fix WeakReference uniquing is TAG_HT is used

Author: nikic

Zend/tests/weakrefs/weakmap_multiple_weakrefs.phpt

@@ -12,6 +12,7 @@ $map2 = new WeakMap;
 $map2[$obj] = 1;
 $map3 = clone $map2;
 
+var_dump($ref === WeakReference::create($obj));
 var_dump($ref->get(), $map, $map2, $map3);
 unset($obj);
 var_dump($ref->get(), $map, $map2, $map3);
@@ -31,6 +32,7 @@ unset($obj);
 
 ?>
 --EXPECT--
+bool(true)
 object(stdClass)#1 (0) {
 }
 object(WeakMap)#3 (1) {

Zend/zend_weakrefs.c

@@ -209,7 +209,7 @@ static zend_always_inline bool zend_weakref_find(zend_object *referent, zval *re
 	}
 
 	if (tag == ZEND_WEAKREF_TAG_HT) {
-		ZEND_HASH_FOREACH(ptr, tagged_ptr) {
+		ZEND_HASH_FOREACH_PTR(ptr, tagged_ptr) {
 			if (ZEND_WEAKREF_GET_TAG(tagged_ptr) == ZEND_WEAKREF_TAG_REF) {
 				ptr = ZEND_WEAKREF_GET_PTR(tagged_ptr);
 				goto found_weakref;