Get designer to compile again.

And it actually runs! ;-)

Change-Id: I593991e3b5d423189f00d1bd9c51daca6b9e9bd0
Reviewed-on: http://codereview.qt-project.org/4831


Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>