Improve AutowireTest

• add missing second class with the same interface
• expect classes with only TrustedCallbackInterface aliased

Closes #3392396

core/modules/announcements_feed/announcements_feed.services.yml

@@ -14,3 +14,4 @@ services:
   announcements_feed.lazy_builders:
     class: Drupal\announcements_feed\LazyBuilders
     arguments: [ '@plugin.manager.element_info']
+  Drupal\announcements_feed\LazyBuilders: '@announcements_feed.lazy_builders'