Revert "Don't use the Task object in the dictionary of results for include_role"

This reverts commit 0945694252.

This commit causes a behaviour change that may break playbooks so we're
reverting this for now.

lib/ansible/executor/task_executor.py

@@ -466,7 +466,7 @@ class TaskExecutor:
         # if this task is a IncludeRole, we just return now with a success code so the main thread can expand the task list for the given host
         elif self._task.action == 'include_role':
             include_variables = self._task.args.copy()
-            return dict(include_variables=include_variables)
+            return dict(include_role=self._task, include_variables=include_variables)
 
         # Now we do final validation on the task, which sets all fields to their final values.
         self._task.post_validate(templar=templar)