[Cache] Make sure the chain cache configuration works

Author: Nyholm

cache.rst

@@ -393,12 +393,17 @@ case the value needs to be recalculated.
                     cache.my_redis:
                         adapter: cache.adapter.redis
                         provider: 'redis://user:[email protected]'
+                    cache.apcu:
+                        adapter: cache.adapter.apcu
+                    cache.array:
+                        adapter: cache.adapter.array
+
 
         services:
             app.my_cache_chain_adapter:
                 class: Symfony\Component\Cache\Adapter\ChainAdapter
                 arguments:
-                    - ['cache.adapter.array', 'cache.my_redis', 'cache.adapter.file']
+                    - ['@cache.array', '@cache.apcu', '@cache.my_redis']
                     - 31536000 # One year
 
     .. code-block:: xml