Rule source on GitHub

DowngradeNewMethodCallWithoutParenthesesRector

Add parentheses on new method call without parentheses

-new Request()->withMethod('GET')->withUri('/hello-world');
+(new Request())->withMethod('GET')->withUri('/hello-world');

Configure your rector.php:

<?php

use Rector\Config\RectorConfig;
use Rector\DowngradePhp84\Rector\MethodCall\DowngradeNewMethodCallWithoutParenthesesRector;

return RectorConfig::configure()
    ->withRules([
        DowngradeNewMethodCallWithoutParenthesesRector::class,
    ]);