Regression: qtdeclarative example crashes qmlscene

1. Start layoutdirection example:

   qmlscene C:\Users\rob\Git\Qt-5.0\qtdeclarative\examples\quick\righttoleft\layoutdirection\layoutdirection.qml
   

2. Click on "Not mirrored".
   Displayed items are being mirrored.
3. Try to close qmlscene by clicking the "X" in the window's to right corner.
   qmlscene crashes.

qmlscene should not crash, no matter what the loaded qml file contains.

You will also get crashes when doing the following:

1. Start righttoleft example by:
   • running righttoleft.qml in qmlscene.
   • building and running the project from righttoleft.pro.
2. Click on "Layout Direction".
3. Click on "Not mirrored".
4. Click on the black arrow in the lower left corner of the window.
   qmlscene or righttoleft.exe crashes.

Running the respective example from Qt 4.8 in qmlviewer does not crash.