Function gtk_sys::gtk_icon_info_load_symbolic_for_context_finish

pub unsafe extern "C" fn gtk_icon_info_load_symbolic_for_context_finish(
    icon_info: *mut GtkIconInfo, 
    res: *mut GAsyncResult, 
    was_symbolic: *mut gboolean, 
    error: *mut *mut GError
) -> *mut GdkPixbuf