Fatal error: Uncaught Error: Class "Drupal\Core\Database\Database" not found in /home/www/drupal8/test/core/modules/system/tests/fixtures/update/drupal-8.page-title-into-block-2476947.php:12
Stack trace:
#0 {main}
thrown in /home/www/drupal8/test/core/modules/system/tests/fixtures/update/drupal-8.page-title-into-block-2476947.php on line 12