fix deprecations: use fqcn instead of 'choice'

Form/Type/GenderType.php

@@ -4,6 +4,8 @@ namespace Chill\PersonBundle\Form\Type;
 
 use Symfony\Component\Form\AbstractType;
 use Symfony\Component\OptionsResolver\OptionsResolverInterface;
+use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
+
 use Chill\PersonBundle\Entity\Person;
 
 /**
@@ -12,24 +14,24 @@ use Chill\PersonBundle\Entity\Person;
  * @author julien
  */
 class GenderType extends AbstractType {
-    
-    
+
+
     public function getName() {
         return 'gender';
     }
-    
+
     public function getParent() {
-        return 'choice';
+        return ChoiceType::class;
     }
-    
+
     public function setDefaultOptions(OptionsResolverInterface $resolver) {
-        
+
         $a = array(
             Person::MALE_GENDER => Person::MALE_GENDER,
             Person::FEMALE_GENDER => Person::FEMALE_GENDER
         );
-        
-        $resolver->setDefaults(array( 
+
+        $resolver->setDefaults(array(
             'choices' => $a,
             'expanded' => true,
             'multiple' => false,