fix deprecations: use fqcn

Form/ReportType.php

@@ -27,6 +27,7 @@ use Symfony\Component\OptionsResolver\OptionsResolver;
 use Chill\MainBundle\Form\Type\AppendScopeChoiceTypeTrait;
 use Chill\MainBundle\Security\Authorization\AuthorizationHelper;
 use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface;
+use Symfony\Component\Form\Extension\Core\Type\DateType;
 use Chill\MainBundle\Templating\TranslatableStringHelper;
 use Doctrine\Common\Persistence\ObjectManager;
 use Chill\CustomFieldsBundle\Form\Type\CustomFieldType;
@@ -78,7 +79,7 @@ class ReportType extends AbstractType
     {
         $builder
             ->add('user')
-            ->add('date', 'date',
+            ->add('date', DateType::class,
                 array('required' => true, 'widget' => 'single_text', 'format' => 'dd-MM-yyyy'))
             ->add('cFData', CustomFieldType::class,
                 array('attr' => array('class' => 'cf-fields'),