IDE: replace DEBUG_AIO with trace events

IDE: replace DEBUG_AIO with trace events

Signed-off-by: John Snow <[email protected]>
Reviewed-by: Stefan Hajnoczi <[email protected]>
Reviewed-by: Eric Blake <[email protected]>
Reviewed-by: Philippe Mathieu-Daudé <[email protected]>
Message-id: 20170901001502[email protected]
[Edited enum conditional for Clang --js]
Signed-off-by: John Snow <[email protected]>