clarify deprecations around annotated classes

Author: xabbuh

UPGRADE-7.1.md

@@ -92,7 +92,10 @@ Mailer
 HttpKernel
 ----------
 
- * Deprecate `Extension::addAnnotatedClassesToCompile()` and related code infrastructure
+ * The `Extension` class is marked as internal, extend the `Extension` class from the DependencyInjection component instead
+ * Deprecate `Extension::addAnnotatedClassesToCompile()`
+ * Deprecate `AddAnnotatedClassesToCachePass`
+ * Deprecate the `setAnnotatedClassCache()` and `getAnnotatedClassesToCompile()` methods of the `Kernel` class
 
 SecurityBundle
 --------------

src/Symfony/Component/HttpKernel/CHANGELOG.md

@@ -9,7 +9,10 @@ CHANGELOG
  * Add `$validationFailedStatusCode` argument to `#[MapQueryParameter]` that allows setting a custom HTTP status code when validation fails
  * Add `NearMissValueResolverException` to let value resolvers report when an argument could be under their watch but failed to be resolved
  * Add `$type` argument to `#[MapRequestPayload]` that allows mapping a list of items
- * Deprecate `Extension::addAnnotatedClassesToCompile()` and related code infrastructure
+ * The `Extension` class is marked as internal, extend the `Extension` class from the DependencyInjection component instead
+ * Deprecate `Extension::addAnnotatedClassesToCompile()`
+ * Deprecate `AddAnnotatedClassesToCachePass`
+ * Deprecate the `setAnnotatedClassCache()` and `getAnnotatedClassesToCompile()` methods of the `Kernel` class
  * Add `#[MapUploadedFile]` attribute to fetch, validate, and inject uploaded files into controller arguments
 
 7.0