[mutter/tintou/introspection-fixes] clutter/stage: Add nullable annotation to get_*_actor methods

[Corentin Noël <corentinnoel src gnome org>]

commit 6d928c1ef006ac47ea5857721119c585d91f7aaa
Author: Corentin Noël <corentin noel collabora com>
Date:   Sun Aug 7 19:39:18 2022 +0200

    clutter/stage: Add nullable annotation to get_*_actor methods
    
    Allows to know when a NULL ClutterActor is possibly being returned.

 clutter/clutter/clutter-stage.c | 6 +++---
 clutter/clutter/clutter-stage.h | 4 ----
 2 files changed, 3 insertions(+), 7 deletions(-)
---
diff --git a/clutter/clutter/clutter-stage.c b/clutter/clutter/clutter-stage.c
index acc3889eda..714883d3a3 100644
--- a/clutter/clutter/clutter-stage.c
+++ b/clutter/clutter/clutter-stage.c
@@ -3296,7 +3296,7 @@ clutter_stage_remove_device_entry (ClutterStage         *self,
  * Retrieves the [class@Clutter.Actor] underneath the pointer or touch point
  * of @device and @sequence.
  *
- * Return value: (transfer none): a pointer to the #ClutterActor or %NULL
+ * Returns: (transfer none) (nullable): a pointer to the #ClutterActor or %NULL
  */
 ClutterActor *
 clutter_stage_get_device_actor (ClutterStage         *stage,
@@ -3905,7 +3905,7 @@ clutter_grab_get_seat_state (ClutterGrab *grab)
  *
  * Gets the actor that currently holds a grab.
  *
- * Returns: (transfer none): The grabbing actor
+ * Returns: (transfer none) (nullable): The grabbing actor
  **/
 ClutterActor *
 clutter_stage_get_grab_actor (ClutterStage *stage)
@@ -3933,7 +3933,7 @@ clutter_stage_get_grab_actor (ClutterStage *stage)
  * and may differ from the actor that the stage originally
  * delivered the event to.
  *
- * Return value: (transfer none): a pointer to the #ClutterActor or %NULL
+ * Returns: (transfer none) (nullable): a pointer to the #ClutterActor or %NULL
  **/
 ClutterActor *
 clutter_stage_get_event_actor (ClutterStage       *stage,
diff --git a/clutter/clutter/clutter-stage.h b/clutter/clutter/clutter-stage.h
index 61fff4d272..f8a2162a2e 100644
--- a/clutter/clutter/clutter-stage.h
+++ b/clutter/clutter/clutter-stage.h
@@ -168,10 +168,6 @@ void            clutter_stage_set_minimum_size                  (ClutterStage
                                                                  guint                  width,
                                                                  guint                  height);
 CLUTTER_EXPORT
-void            clutter_stage_get_minimum_size                  (ClutterStage          *stage,
-                                                                 guint                 *width,
-                                                                 guint                 *height);
-CLUTTER_EXPORT
 void            clutter_stage_set_key_focus                     (ClutterStage          *stage,
                                                                  ClutterActor          *actor);
 CLUTTER_EXPORT