Add missing "Since: 4.X" tags

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>

gdk/wayland/gdkglcontext-wayland.c

@@ -340,6 +340,8 @@ gdk_wayland_gl_context_init (GdkWaylandGLContext *self)
  * Retrieves the EGL display connection object for the given GDK display.
  *
  * Returns: (nullable): the EGL display
+ *
+ * Since: 4.4
  */
 gpointer
 gdk_wayland_display_get_egl_display (GdkDisplay *display)

gtk/gtkfilefilter.c

@@ -606,6 +606,8 @@ gtk_file_filter_add_pattern (GtkFileFilter *filter,
  *
  * In contrast to pattern matches, suffix matches
  * are *always* case-insensitive.
+ *
+ * Since: 4.4
  */
 void
 gtk_file_filter_add_suffix (GtkFileFilter *filter,

gtk/gtkicontheme.c

@@ -2623,6 +2623,8 @@ gtk_icon_theme_has_icon (GtkIconTheme *self,
  * for a particular `GIcon`.
  *
  * Returns: %TRUE if @self includes an icon for @gicon
+ *
+ * Since: 4.2
  */
 gboolean
 gtk_icon_theme_has_gicon (GtkIconTheme *self,

gtk/gtkmenubutton.c

@@ -1302,6 +1302,8 @@ gtk_menu_button_set_primary (GtkMenuButton *menu_button,
  * Returns whether the menu button acts as a primary menu.
  *
  * Returns: %TRUE if the button is a primary menu
+ *
+ * Since: 4.4
  */
 gboolean
 gtk_menu_button_get_primary (GtkMenuButton *menu_button)