Fix creation of dynamic property SplObjectStorage::$foo is deprecated

Author: nanasess

tests/_files/DataProviderDebugTest.php

@@ -32,7 +32,9 @@ public static function provider()
 
         $storage = new \SplObjectStorage();
         $storage->attach($obj2);
-        $storage->foo = $obj2;
+        if (PHP_VERSION_ID < 80200) {
+            $storage->foo = $obj2;
+        }
 
         return array(
             array(null, true, 1, 1.0),