Merge branch 'PHP-8.4'

* PHP-8.4:
  Fix test expectation for PHP 8.3+

Author: nielsdos

ext/zend_test/tests/gh16908.phpt

@@ -12,8 +12,6 @@ $cls->foo()->x ??= 42;
 --EXPECTF--
 Notice: Only variable references should be returned by reference in %s on line %d
 
-Notice: Only variable references should be returned by reference in %s on line %d
-
 Fatal error: Uncaught Error: Attempt to assign property "x" on null in %s:%d
 Stack trace:
 #0 {main}