Revert deferred test, add a separate one for callable

Author: oprypkhantc

tests/Fixtures/Integration/Models/Blog.php

@@ -36,17 +36,13 @@ public function getPosts(
         return $prefetchedPosts[$this->id];
     }
 
-    /**
-     * @param Blog[][] $prefetchedSubBlogs
-     *
-     * @return callable(): Blog[]
-     */
-    #[Field]
+    /** @param Blog[][] $prefetchedSubBlogs */
+    #[Field(outputType: '[Blog!]!')]
     public function getSubBlogs(
         #[Prefetch('prefetchSubBlogs')]
         array $prefetchedSubBlogs,
-    ): callable {
-        return fn () => $prefetchedSubBlogs[$this->id];
+    ): Deferred {
+        return new Deferred(fn () => $prefetchedSubBlogs[$this->id]);
     }
 
     /**
@@ -84,4 +80,10 @@ public static function prefetchSubBlogs(iterable $blogs): array
 
         return $subBlogs;
     }
+
+    /** @return callable(): User  */
+    #[Field]
+    public function author(): callable {
+        return fn () => new User('Author', 'author@graphqlite');
+    }
 }

tests/Integration/EndToEndTest.php

@@ -2359,6 +2359,9 @@ public function testPrefetchingOfSameTypeInDifferentNestingLevels(): void
                         }
                     }
                 }
+                author {
+                    email
+                }
                 posts {
                     title
                     comments {
@@ -2399,6 +2402,9 @@ public function testPrefetchingOfSameTypeInDifferentNestingLevels(): void
                             ],
                         ],
                     ],
+                    'author' => [
+                        'email' => 'author@graphqlite',
+                    ],
                     'posts' => [
                         [
                             'title' => 'post-1.1',
@@ -2435,6 +2441,9 @@ public function testPrefetchingOfSameTypeInDifferentNestingLevels(): void
                             ],
                         ],
                     ],
+                    'author' => [
+                        'email' => 'author@graphqlite',
+                    ],
                     'posts' => [
                         [
                             'title' => 'post-2.1',