Fix tests

Author: nicolas-grekas

Form/Type/DoctrineType.php

@@ -14,6 +14,7 @@
 use Doctrine\Common\Collections\Collection;
 use Doctrine\Common\Persistence\ManagerRegistry;
 use Doctrine\Common\Persistence\ObjectManager;
+use Doctrine\ORM\QueryBuilder;
 use Symfony\Bridge\Doctrine\Form\ChoiceList\DoctrineChoiceLoader;
 use Symfony\Bridge\Doctrine\Form\ChoiceList\EntityLoaderInterface;
 use Symfony\Bridge\Doctrine\Form\ChoiceList\IdReader;