[DependencyInjection] Clarify the #[Target] attribute 2

Author: HypeMC

service_container/autowiring.rst

@@ -549,13 +549,35 @@ Another possibility is to use the ``#[Target]`` attribute. By using this attribu
 on the argument you want to autowire, you can define exactly which service to inject
 by passing the name of the argument used in the named alias. Thanks to this, you're able
 to have multiple services implementing the same interface and keep the argument name
-decorrelated of any implementation name (like shown in the example above).
+decorrelated of any implementation name (like shown in the example above). In addition,
+you'll get an exception in case you make any typo in the target name.
 
 .. warning::
 
     The ``#[Target]`` attribute only accepts the name of the argument used in the named
     alias, it **does not** accept service ids or service aliases.
 
+You can get a list of named autowiring aliases by running the ``debug:autowiring`` command::
+
+.. code-block:: terminal
+
+    $ php bin/console debug:autowiring LoggerInterface
+
+    Autowirable Types
+    =================
+
+     The following classes & interfaces can be used as type-hints when autowiring:
+     (only showing classes/interfaces matching LoggerInterface)
+
+     Describes a logger instance.
+     Psr\Log\LoggerInterface - alias:monolog.logger
+     Psr\Log\LoggerInterface $assetMapperLogger - target:asset_mapperLogger - alias:monolog.logger.asset_mapper
+     Psr\Log\LoggerInterface $cacheLogger - alias:monolog.logger.cache
+     Psr\Log\LoggerInterface $httpClientLogger - target:http_clientLogger - alias:monolog.logger.http_client
+     Psr\Log\LoggerInterface $mailerLogger - alias:monolog.logger.mailer
+
+     [...]
+
 Suppose you want to inject the ``App\Util\UppercaseTransformer`` service. You would use
 the ``#[Target]`` attribute by passing the name of the ``$shoutyTransformer`` argument::