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DrupalLRector

Fixes deprecated \Drupal::l() calls

-\Drupal::l('User Login', \Drupal\Core\Url::fromRoute('user.login'));
+\Drupal\Core\Link::fromTextAndUrl('User Login', \Drupal\Core\Url::fromRoute('user.login'));

Configure your rector.php:

<?php

use DrupalRector\Drupal8\Rector\Deprecation\DrupalLRector;
use Rector\Config\RectorConfig;

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