Turns string Form Type references to their CONSTANT alternatives in FormTypes in Form in Symfony. To enable custom types, add link to your container XML dump in "$rectorConfig->symfonyContainerXml(...)"
$formBuilder = new Symfony\Component\Form\FormBuilder;
-$formBuilder->add('name', 'form.type.text');
+$formBuilder->add('name', \Symfony\Component\Form\Extension\Core\Type\TextType::class);Configure your rector.php:
<?php
use Rector\Config\RectorConfig;
use Rector\Symfony\Symfony30\Rector\MethodCall\StringFormTypeToClassRector;
return RectorConfig::configure()
->withRules([
StringFormTypeToClassRector::class,
]);