SplitGroupedClassConstantsRector

Separate class constant to own lines

 class SomeClass
 {
-    const HI = true, HELLO = 'true';
+    const HI = true;
+    const HELLO = 'true';
 }

Configure your rector.php:

<?php

use Rector\CodingStyle\Rector\ClassConst\SplitGroupedClassConstantsRector;
use Rector\Config\RectorConfig;

return RectorConfig::configure()
    ->withRules([
        SplitGroupedClassConstantsRector::class,
    ]);
SETS:  Coding Style