Backport type fixes

Author: nicolas-grekas

Form/Type/EntityType.php

@@ -50,7 +50,7 @@ public function configureOptions(OptionsResolver $resolver)
      *
      * @return ORMQueryBuilderLoader
      */
-    public function getLoader(ObjectManager $manager, $queryBuilder, string $class)
+    public function getLoader(ObjectManager $manager, object $queryBuilder, string $class)
     {
         if (!$queryBuilder instanceof QueryBuilder) {
             throw new \TypeError(sprintf('Expected an instance of "%s", but got "%s".', QueryBuilder::class, get_debug_type($queryBuilder)));
@@ -76,7 +76,7 @@ public function getBlockPrefix()
      * @internal This method is public to be usable as callback. It should not
      *           be used in user code.
      */
-    public function getQueryBuilderPartsForCachingHash($queryBuilder): ?array
+    public function getQueryBuilderPartsForCachingHash(object $queryBuilder): ?array
     {
         if (!$queryBuilder instanceof QueryBuilder) {
             throw new \TypeError(sprintf('Expected an instance of "%s", but got "%s".', QueryBuilder::class, get_debug_type($queryBuilder)));