updated core from 8.4 to 8.5 : bug with login_destination

core/modules/block/src/BlockForm.php

@@ -19,6 +19,8 @@ use Symfony\Component\DependencyInjection\ContainerInterface;
 
 /**
  * Provides form for block instance forms.
+ *
+ * @internal
  */
 class BlockForm extends EntityForm {
 

core/modules/block/src/Controller/BlockLibraryController.php

@@ -105,6 +105,10 @@ class BlockLibraryController extends ControllerBase {
     $definitions = $this->blockManager->getDefinitionsForContexts($this->contextRepository->getAvailableContexts());
     // Order by category, and then by admin label.
     $definitions = $this->blockManager->getSortedDefinitions($definitions);
+    // Filter out definitions that are not intended to be placed by the UI.
+    $definitions = array_filter($definitions, function (array $definition) {
+      return empty($definition['_block_ui_hidden']);
+    });
 
     $region = $request->query->get('region');
     $weight = $request->query->get('weight');

core/modules/block/src/Form/BlockDeleteForm.php

@@ -7,6 +7,8 @@ use Drupal\Core\Url;
 
 /**
  * Provides a deletion confirmation form for the block instance deletion form.
+ *
+ * @internal
  */
 class BlockDeleteForm extends EntityDeleteForm {