Update to Drupal 8.0.1. For more information, see https://www.drupal.org/node/2627402

core/modules/system/tests/modules/module_test/module_test.module

@@ -61,32 +61,6 @@ function module_test_hook_info() {
   return $hooks;
 }
 
-/**
- * Page callback for 'hook dynamic loading' test.
- *
- * If the hook is dynamically loaded correctly, the menu callback should
- * return 'success!'.
- *
- * @deprecated \Drupal\module_test\Controller\ModuleTestController::hookDynamicLoadingInvoke()
- */
-function module_test_hook_dynamic_loading_invoke() {
-  $result = \Drupal::moduleHandler()->invoke('module_test', 'test_hook');
-  return $result['module_test'];
-}
-
-/**
- * Page callback for 'hook dynamic loading' test.
- *
- * If the hook is dynamically loaded correctly, the menu callback should
- * return 'success!'.
- *
- * @deprecated \Drupal\module_test\Controller\ModuleTestController::hookDynamicLoadingInvokeAll()
- */
-function module_test_hook_dynamic_loading_invoke_all() {
-  $result = \Drupal::moduleHandler()->invokeAll('test_hook');
-  return $result['module_test'];
-}
-
 /**
  * Load function used by module_test_hook_dynamic_loading_invoke_all_during_load().
  *
@@ -97,23 +71,6 @@ function module_test_load($param) {
   return $result[$param];
 }
 
-/**
- * Page callback for 'class loading' test.
- *
- * This module does not have a dependency on module_autoload_test.module. If
- * that module is enabled, this function should return the string
- * 'Drupal\\module_autoload_test\\SomeClass::testMethod() was invoked.'. If
- * that module is not enabled, this function should return nothing.
- *
- * @deprecated \Drupal\module_test\Controller\ModuleTestController::testClassLoading()
- */
-function module_test_class_loading() {
-  if (class_exists('Drupal\module_autoload_test\SomeClass')) {
-    $obj = new Drupal\module_autoload_test\SomeClass();
-    return $obj->testMethod();
-  }
-}
-
 /**
  * Implements hook_modules_installed().
  */

core/modules/system/tests/modules/module_test/src/Controller/ModuleTestController.php

@@ -13,24 +13,40 @@ namespace Drupal\module_test\Controller;
 class ModuleTestController {
 
   /**
-   * @todo Remove module_test_hook_dynamic_loading_invoke().
+   * Returns dynamically invoked hook results for the 'module_test' module
+   *
+   * @return array
+   *   Renderable array.
    */
   public function hookDynamicLoadingInvoke() {
-    return module_test_hook_dynamic_loading_invoke();
+    $result = \Drupal::moduleHandler()->invoke('module_test', 'test_hook');
+    return $result['module_test'];
   }
 
   /**
-   * @todo Remove module_test_hook_dynamic_loading_invoke_all().
+   * Returns dynamically invoked hook results for all modules.
+   *
+   * @return array
+   *   Renderable array.
    */
   public function hookDynamicLoadingInvokeAll() {
-    return module_test_hook_dynamic_loading_invoke_all();
+    $result = \Drupal::moduleHandler()->invokeAll('test_hook');
+    return $result['module_test'];
   }
 
   /**
-   * @todo Remove module_test_class_loading().
+   * Returns the result of an autoloaded class's public method.
+   *
+   * @return array
+   *   Renderable array.
    */
   public function testClassLoading() {
-    return ['#markup' => module_test_class_loading()];
+    $markup = NULL;
+    if (class_exists('Drupal\module_autoload_test\SomeClass')) {
+      $obj = new \Drupal\module_autoload_test\SomeClass();
+      $markup = $obj->testMethod();
+    }
+    return ['#markup' => $markup];
   }
 
 }

core/modules/system/tests/themes/engines/nyan_cat/nyan_cat.engine

@@ -8,7 +8,10 @@
 use Drupal\Core\Extension\Extension;
 
 /**
- * Implements hook_init().
+ * Includes .theme file from themes.
+ *
+ * @param \Drupal\Core\Extension\Extension $theme
+ *   The theme extension object.
  */
 function nyan_cat_init(Extension $theme) {
   $theme->load();