[php-src] Issue #24280: Foreach by reference ignores property visibility

Issue: https://github.com/php/php-src/issues/24280 Author: kamil-tekiela ### Description The following code: ```php <?php class U { public private(set) string $name = "orig"; } $u = new U; foreach ($u as &$v) { $v = "X"; } // no error, $u->name is now "X" var_dump($u->name); $r = &$u->name; // Error: Cannot indirectly modify private(set) property ``` Resulted in this output: ``` string(1) "X" Fatal error: Uncaught Error: Cannot indirectly modify private(set) property U::$name from global scope ``` But I expected this output instead: ``` Fatal error: Uncaught Error: Cannot indirectly modify private(set) property U::$name from global scope ``` ### PHP Version ```plain https://3v4l.org/oL4rA#v ``` ### Operating System _No response_