Issue #2321913 by Temoor: Replace all instances of...

Issue #2321913 by Temoor: Replace all instances of entity_load('menu_link_content') and entity_load_multiple('menu_link_content') with static method calls.

core/modules/menu_ui/menu_ui.module

@@ -196,7 +196,7 @@ function menu_ui_node_save(EntityInterface $node) {
     $definition = $node->menu;
     if (trim($definition['title'])) {
       if (!empty($definition['entity_id'])) {
-        $entity = entity_load('menu_link_content', $definition['entity_id']);
+        $entity = MenuLinkContent::load($definition['entity_id']);
         $entity->enabled->value = 1;
         $entity->title->value = trim($definition['title']);
         $entity->description->value = trim($definition['description']);
@@ -412,7 +412,7 @@ function menu_ui_node_submit(EntityInterface $node, $form, FormStateInterface $f
     $definition = $form_state->getValue('menu');
     if (empty($definition['enabled'])) {
       if ($definition['entity_id']) {
-        $entity = entity_load('menu_link_content', $definition['entity_id']);
+        $entity = MenuLinkContent::load($definition['entity_id']);
         $entity->delete();
       }
     }

core/modules/menu_ui/src/Tests/MenuNodeTest.php

@@ -8,6 +8,7 @@
 namespace Drupal\menu_ui\Tests;
 
 use Drupal\simpletest\WebTestBase;
+use Drupal\menu_link_content\Entity\MenuLinkContent;
 
 /**
  * Add, edit, and delete a node with menu link.
@@ -140,7 +141,7 @@ function testMenuNodeFormWidget() {
     $this->assertText('Provide a menu link', 'Link in not allowed menu not shown in node edit form');
     // Assert that the link is still in the Administration menu after save.
     $this->drupalPostForm('node/' . $node->id() . '/edit', $edit, t('Save'));
-    $link = entity_load('menu_link_content', $item->id());
+    $link = MenuLinkContent::load($item->id());
     $this->assertTrue($link, 'Link in not allowed menu still exists after saving node');
 
     // Move the menu link back to the Tools menu.