Symfony\Component\Form\Extension\Validator\ValidatorExtension::__construct PHP Method

    public function __construct(ValidatorInterface $validator)
    {
        $this->validator = $validator;
    }

 public function __construct()
 {
     $builder = Validation::createValidatorBuilder();
     $builder->setConstraintValidatorFactory(new ConstraintValidatorFactory());
     $builder->setMetadataFactory(new LazyLoadingMetadataFactory(new StaticMethodLoader()));
     parent::__construct($builder->getValidator());
 }