Fix test

Author: kocsismate

ext/opcache/tests/jit/bug80634.phpt

@@ -19,7 +19,7 @@ if (PHP_OS_FAMILY == 'Windows') die('skip Preloading is not supported on Windows
 $v = new SomeClass(5);
 ?>
 --EXPECTF--
-Fatal error: Uncaught Error: Writing to DatePeriod->interval is unsupported in %spreload_bug80634.inc:7
+Fatal error: Uncaught Error: Cannot modify readonly property DatePeriod::$current in %spreload_bug80634.inc:7
 Stack trace:
 #0 %sbug80634.php(2): SomeClass->__construct(5)
 #1 {main}

ext/opcache/tests/jit/preload_bug80634.inc

@@ -1,10 +1,10 @@
 <?php
 class SomeClass extends \DatePeriod {
-	public $interval;
+	public readonly ?DateTimeInterface $current;
 
 	public function __construct(int $v) {
 		parent::__construct(new \DateTime('2020-12-31'), new \DateInterval("P1Y"), 1);
-		$this->interval = $v;
-		var_dump($this->interval);
+		$this->current = $v;
+		var_dump($this->current);
 	}
-}
+}