Issue #2832052 by amoebanath, drunken monkey: BrowserTestBase::drupalLogin()...

Issue #2832052 by amoebanath, drunken monkey: BrowserTestBase::drupalLogin() has typo in assert message

core/tests/Drupal/Tests/BrowserTestBase.php

@@ -7,9 +7,9 @@
 use Behat\Mink\Mink;
 use Behat\Mink\Selector\SelectorsHandler;
 use Behat\Mink\Session;
+use Drupal\Component\Render\FormattableMarkup;
 use Drupal\Component\Serialization\Json;
 use Drupal\Component\Utility\Html;
-use Drupal\Component\Utility\SafeMarkup;
 use Drupal\Component\Utility\UrlHelper;
 use Drupal\Core\Database\Database;
 use Drupal\Core\Session\AccountInterface;
@@ -725,7 +725,7 @@ protected function drupalLogin(AccountInterface $account) {
 
     // @see BrowserTestBase::drupalUserIsLoggedIn()
     $account->sessionId = $this->getSession()->getCookie($this->getSessionName());
-    $this->assertTrue($this->drupalUserIsLoggedIn($account), SafeMarkup::format('User %name successfully logged in.', array('name' => $account->getUsername())));
+    $this->assertTrue($this->drupalUserIsLoggedIn($account), new FormattableMarkup('User %name successfully logged in.', array('%name' => $account->getAccountName())));
 
     $this->loggedInUser = $account;
     $this->container->get('current_user')->setAccount($account);