Issue #2084653 by longwave, joachim: Add inline comments to config sorting

core/lib/Drupal/Core/Config/Entity/ConfigEntityListController.php

@@ -20,6 +20,9 @@ class ConfigEntityListController extends EntityListController {
    */
   public function load() {
     $entities = parent::load();
+
+    // Sort the entities using the entity class's sort() method.
+    // See \Drupal\Core\Config\Entity\ConfigEntityBase::sort().
     uasort($entities, array($this->entityInfo['class'], 'sort'));
     return $entities;
   }

core/modules/block/lib/Drupal/block/BlockListController.php

@@ -101,6 +101,7 @@ public function load() {
     // @todo Move the functionality of _block_rehash() out of the listing page.
     $entities = _block_rehash($this->theme);
 
+    // Sort the blocks using \Drupal\block\Entity\Block::sort().
     uasort($entities, array($this->entityInfo['class'], 'sort'));
     return $entities;
   }

core/modules/language/lib/Drupal/language/LanguageListController.php

@@ -24,6 +24,9 @@ class LanguageListController extends DraggableListController {
    */
   public function load() {
     $entities = $this->storage->loadByProperties(array('locked' => '0'));
+
+    // Sort the entities using the entity class's sort() method.
+    // See \Drupal\Core\Config\Entity\ConfigEntityBase::sort().
     uasort($entities, array($this->entityInfo['class'], 'sort'));
     return $entities;
   }

core/modules/user/lib/Drupal/user/RoleStorageController.php

@@ -29,6 +29,7 @@ public function deleteRoleReferences(array $rids) {
    */
   protected function attachLoad(&$queried_entities, $revision_id = FALSE) {
     // Sort the queried roles by their weight.
+    // See \Drupal\Core\Config\Entity\ConfigEntityBase::sort().
     uasort($queried_entities, array($this->entityInfo['class'], 'sort'));
 
     parent::attachLoad($queried_entities, $revision_id);