RenameVariableToMatchNewTypeRector

Rename variable to match new ClassType

 final class SomeClass
 {
     public function run()
     {
-        $search = new DreamSearch();
-        $search->advance();
+        $dreamSearch = new DreamSearch();
+        $dreamSearch->advance();
     }
 }

Configure your rector.php:

<?php

use Rector\Config\RectorConfig;
use Rector\Naming\Rector\ClassMethod\RenameVariableToMatchNewTypeRector;

return RectorConfig::configure()
    ->withRules([
        RenameVariableToMatchNewTypeRector::class,
    ]);
SETS:  Naming