ErrorNamesPropertyToConstantRector

Turns old Constraint::$errorNames properties to use Constraint::ERROR_NAMES instead

 use Symfony\Component\Validator\Constraints\NotBlank;

 class SomeClass
 {
-    NotBlank::$errorNames
+    NotBlank::ERROR_NAMES

 }

Configure your rector.php:

<?php

use Rector\Config\RectorConfig;
use Rector\Symfony\Symfony61\Rector\StaticPropertyFetch\ErrorNamesPropertyToConstantRector;

return RectorConfig::configure()
    ->withRules([
        ErrorNamesPropertyToConstantRector::class,
    ]);
SETS:  symfony/* 6.1