turn CloningVisitor to services

src/NodeTraverser/CloningNodeTraverser.php

@@ -7,9 +7,8 @@ use PhpParser\NodeVisitor\CloningVisitor;
 
 final class CloningNodeTraverser extends NodeTraverser
 {
-    public function __construct()
+    public function __construct(CloningVisitor $cloningVisitor)
     {
-        // note: probably have to be recreated to clear cache
-        $this->addVisitor(new CloningVisitor);
+        $this->addVisitor($cloningVisitor);
     }
 }

src/config/services.yml

@@ -36,6 +36,7 @@ services:
     PhpParser\ParserFactory: ~
     PhpParser\BuilderFactory: ~
 
+    PhpParser\NodeVisitor\CloningVisitor:
     PhpParser\NodeVisitor\NameResolver:
         arguments:
             $options: