[gtk/bilelmoussaoui/4.2-annotations] IMContext: add since annotations to the new APIs

[Bilal Elmoussaoui <bilelmoussaoui src gnome org>]

commit 0b100229e3d9d658e1c05e2e75813be2d5ca2a49
Author: Bilal Elmoussaoui <bil elmoussaoui gmail com>
Date:   Thu Mar 18 22:25:38 2021 +0100

    IMContext: add since annotations to the new APIs

 gtk/gtkimcontext.c | 4 ++++
 gtk/gtkimcontext.h | 4 ++--
 2 files changed, 6 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtkimcontext.c b/gtk/gtkimcontext.c
index 84db9f09bd..46b418ab73 100644
--- a/gtk/gtkimcontext.c
+++ b/gtk/gtkimcontext.c
@@ -754,6 +754,8 @@ gtk_im_context_set_surrounding (GtkIMContext  *context,
  * string. This function is expected to be called in response to the
  * GtkIMContext::retrieve_surrounding signal, and will likely have no
  * effect if called at other times.
+ *
+ * Since: 4.2
  */
 void
 gtk_im_context_set_surrounding_with_selection (GtkIMContext  *context,
@@ -853,6 +855,8 @@ gtk_im_context_get_surrounding (GtkIMContext  *context,
  *
  * Returns: `TRUE` if surrounding text was provided; in this case
  *   you must free the result stored in `text`.
+ *
+ * Since: 4.2
  */
 gboolean
 gtk_im_context_get_surrounding_with_selection (GtkIMContext  *context,
diff --git a/gtk/gtkimcontext.h b/gtk/gtkimcontext.h
index c9558f2ba3..d4268d7e12 100644
--- a/gtk/gtkimcontext.h
+++ b/gtk/gtkimcontext.h
@@ -150,14 +150,14 @@ GDK_DEPRECATED_IN_4_2_FOR(gtk_im_context_get_surrounding_with_selection)
 gboolean gtk_im_context_get_surrounding     (GtkIMContext       *context,
                                              char              **text,
                                              int                *cursor_index);
-GDK_AVAILABLE_IN_ALL
+GDK_AVAILABLE_IN_4_2
 void     gtk_im_context_set_surrounding_with_selection
                                             (GtkIMContext       *context,
                                              const char         *text,
                                              int                 len,
                                              int                 cursor_index,
                                              int                 anchor_index);
-GDK_AVAILABLE_IN_ALL
+GDK_AVAILABLE_IN_4_2
 gboolean gtk_im_context_get_surrounding_with_selection
                                             (GtkIMContext       *context,
                                              char              **text,