FormTypeInstanceToClassConstRector

Changes createForm(new FormType), add(new FormType) to ones with "FormType::class"

 use Symfony\Bundle\FrameworkBundle\Controller\Controller;

 final class SomeController extends Controller
 {
     public function action()
     {
-        $form = $this->createForm(new TeamType);
+        $form = $this->createForm(TeamType::class);
     }
 }

Configure your rector.php:

<?php

use Rector\Config\RectorConfig;
use Rector\Symfony\Symfony30\Rector\MethodCall\FormTypeInstanceToClassConstRector;

return RectorConfig::configure()
    ->withRules([
        FormTypeInstanceToClassConstRector::class,
    ]);
SETS:  symfony/* 3.0