Hoa - fix PHP 8.1 deprecation

Author: ondrejmirtes

patches/Rule.patch

@@ -0,0 +1,16 @@
+@package hoa/compiler
+
+--- Llk/Rule/Rule.php	2017-08-08 09:44:07.000000000 +0200
++++ Llk/Rule/Rule.php	2021-10-29 16:42:12.000000000 +0200
+@@ -118,7 +118,10 @@
+     {
+         $this->setName($name);
+         $this->setChildren($children);
+-        $this->setNodeId($nodeId);
++
++		if ($nodeId !== null) {
++			$this->setNodeId($nodeId);
++		}
+
+         return;
+     }