[pyatspi2: 1/2] tests: Include header to get g_marshal_value_peek_boxed definition

[Mike Gorse <mgorse src gnome org>]

commit 569038d47b02eb231960f65606108dc5a58ed2ea
Author: Matt Turner <mattst88 gmail com>
Date:   Sun Oct 2 00:35:35 2022 -0400

    tests: Include header to get g_marshal_value_peek_boxed definition
    
    user_marshal.c:55:24: warning: implicit declaration of function
    'g_marshal_value_peek_boxed' [-Wimplicit-function-declaration]

 tests/dummyatk/user_marshal.c | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/tests/dummyatk/user_marshal.c b/tests/dummyatk/user_marshal.c
index 28d9128b..4b08ddea 100644
--- a/tests/dummyatk/user_marshal.c
+++ b/tests/dummyatk/user_marshal.c
@@ -19,6 +19,8 @@
 
 #include       <glib-object.h>
 
+#include "user_marshal.h"
+
 /* INT:BOXED (marshal.list:1) */
 void
 g_cclosure_user_marshal_INT__BOXED (GClosure     *closure,