feature #19344 Document #[WithHttpStatus] and #[WithLogLevel] on interfaces. (priyadi)

This PR was merged into the 7.1 branch.

Discussion
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Document `#[WithHttpStatus]` and `#[WithLogLevel]` on interfaces.

resolves #19337

Commits
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420bf58 Document `#[WithHttpStatus]` and `#[WithLogLevel]` on interfaces.

Author: OskarStark

reference/configuration/framework.rst

@@ -3806,6 +3806,26 @@ the ``#[WithLogLevel]`` attribute::
     {
     }
 
+The attributes can also be added to interfaces directly::
+
+    namespace App\Exception;
+
+    use Symfony\Component\HttpKernel\Attribute\WithHttpStatus;
+
+    #[WithHttpStatus(422)]
+    interface CustomExceptionInterface
+    {
+    }
+
+    class CustomException extends \Exception implements CustomExceptionInterface
+    {
+    }
+
+.. versionadded:: 7.1
+
+    Support to use ``#[WithHttpStatus]`` and ``#[WithLogLevel]`` attributes
+    on interfaces, was introduced in Symfony 7.1.
+
 .. _`HTTP Host header attacks`: https://www.skeletonscribe.net/2013/05/practical-http-host-header-attacks.html
 .. _`Security Advisory Blog post`: https://symfony.com/blog/security-releases-symfony-2-0-24-2-1-12-2-2-5-and-2-3-3-released#cve-2013-4752-request-gethost-poisoning
 .. _`phpstorm-url-handler`: https://github.com/sanduhrs/phpstorm-url-handler