Issue #3271371: Ensure new, changed or deleted classes are in the correct state after an update

package_manager/tests/modules/package_manager_test_api/src/SystemChangeRecorder.php

@@ -123,10 +123,10 @@ class SystemChangeRecorder implements EventSubscriberInterface {
   }
 
   /**
-   * Checks if a given class exists, and records its ->value property.
+   * Checks if a given class exists, and records its 'value' property.
    *
    * @param string $class_name
-   *   The name of the class to check.
+   *   The name of the class to check, not including the class namespace.
    * @param array $results
    *   The current set of results, passed by reference.
    */