Fix crash in QDeclarativeProperty
This commit ensures that we don't attempt to dereference a null
pointer in QDeclarativeProperty. It also fixes a unit test failure
by adding appropriate test files.
Related to commit
9f9b23fd7943a3d125cb1cc9f333ce430b2706ea
Task-number: QTBUG-14697
Change-Id: Ic60521e46401835029e293349a00610342d0d58f
Reviewed-on: http://codereview.qt.nokia.com/2538
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Simon Hausmann <simon.hausmann@nokia.com>
Reviewed-by: Aaron Kennedy <aaron.kennedy@nokia.com>