Creates a `GAppInfo` for the specified `GtkRecentInfo`
In case of error, throws will be set either with a gtk_recent_manager_error or a g_io_error
| this |
a `GtkRecentInfo` |
| app_name |
the name of the application that should be mapped to a `GAppInfo`; if null is used then the default application for the MIME type is used |
|
the newly created `GAppInfo` |