reverted:
--- b/core/modules/node/lib/Drupal/node/Plugin/Search/NodeSearch.php
+++ a/core/modules/node/lib/Drupal/node/Plugin/Search/NodeSearch.php
@@ -404,6 +404,7 @@
     );
 
     // Add node types.
+    $node_types = $this->entityManager->getStorageController('node_type')->loadMultiple();
     $types = array_map('check_plain', node_type_get_names());
     $form['advanced']['types-fieldset'] = array(
       '#type' => 'fieldset',
diff -u b/core/modules/node/lib/Drupal/node/Tests/NodeSaveTest.php b/core/modules/node/lib/Drupal/node/Tests/NodeSaveTest.php
--- b/core/modules/node/lib/Drupal/node/Tests/NodeSaveTest.php
+++ b/core/modules/node/lib/Drupal/node/Tests/NodeSaveTest.php
@@ -89,12 +89,10 @@
 
     // Store the timestamps.
     $created = $node->getCreatedTime();
-    $changed = $node->getChangedTime();
 
     $node->save();
     $node = $this->drupalGetNodeByTitle($edit['title'], TRUE);
     $this->assertEqual($node->getCreatedTime(), $created, 'Updating a node preserves "created" timestamp.');
-    $this->assertNotEqual($node->getChangedTime(), $changed, 'Updating a node does not preserve "changed" timestamp.');
 
     // Programmatically set the timestamps using hook_node_presave.
     $node->title = 'testing_node_presave';