CERC: Use invalid ABI

Use a invalid ABI since we have no idea what we will end up running.
Make the debugger figure out specifics when needed.

Change-Id: Ia74080887617a097a16d789dfd7f88458409a23c
Reviewed-on: http://codereview.qt-project.org/6065


Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@nokia.com>