only in patch2:
unchanged:
--- a/core/modules/locale/lib/Drupal/locale/Tests/LocaleTranslationTest.php
+++ b/core/modules/locale/lib/Drupal/locale/Tests/LocaleTranslationTest.php
@@ -62,7 +62,7 @@ function testStringTranslation() {
     // Add string.
     t($name, array(), array('langcode' => $langcode));
     // Reset locale cache.
-    locale_reset();
+    drupal_container()->get('locale.translation')->reset();
     $this->assertRaw('"edit-site-default-' . $langcode .'"', t('Language code found.'));
     $this->assertText(t($name), t('Test language added.'));
     $this->drupalLogout();
@@ -137,7 +137,7 @@ function testStringTranslation() {
     // Refresh the locale() cache to get fresh data from t() below. We are in
     // the same HTTP request and therefore t() is not refreshed by saving the
     // translation above.
-    locale_reset();
+    drupal_container()->get('locale.translation')->reset();
     // Now we should get the proper fresh translation from t().
     $this->assertTrue($name != $translation_to_en && t($name, array(), array('langcode' => 'en')) == $translation_to_en, t('t() works for English.'));
     $this->assertTrue(t($name, array(), array('langcode' => LANGUAGE_SYSTEM)) == $name, t('t() works for LANGUAGE_SYSTEM.'));
@@ -352,7 +352,7 @@ function testStringSearch() {
     // Add string.
     t($name, array(), array('langcode' => $langcode));
     // Reset locale cache.
-    locale_reset();
+    drupal_container()->get('locale.translation')->reset();
     $this->drupalLogout();
 
     // Search for the name.