[gtk/bilelmoussaoui/trick-gir-list-position] gtk: trick g-ir scanner to add INVALID_LIST_POSITION

[Bilal Elmoussaoui <bilelmoussaoui src gnome org>]

commit dc5aab62c8e22f46d3b0643f7a08295915757d61
Author: Bilal Elmoussaoui <bil elmoussaoui gmail com>
Date:   Tue May 4 21:33:41 2021 +0000

    gtk: trick g-ir scanner to add INVALID_LIST_POSITION
    
    without it, the define doesn't get picked in the introspection data

 gtk/gtktypes.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/gtk/gtktypes.h b/gtk/gtktypes.h
index 9b3b76390e..342b62c843 100644
--- a/gtk/gtktypes.h
+++ b/gtk/gtktypes.h
@@ -66,7 +66,7 @@ typedef struct _GtkWindow              GtkWindow;
  * Refer to each function's documentation for if this value is allowed and what it
  * does.
  */
-#define GTK_INVALID_LIST_POSITION (G_MAXUINT)
+#define GTK_INVALID_LIST_POSITION (0xffffffffU)
 
 G_END_DECLS