Stabilize tst_qabstractitemview

Attempt to fix

 FAIL! : tst_QAbstractItemView::task200665_itemEntered() Compared values are not the same
    Actual (spy.count()): 0
    Expected (1) : 1
    Loc: [tst_qabstractitemview.cpp(1292)]

which might have been introduced by removing the absolute qWait(200) in favor
of qWaitForWindowExposed() in afe8e368, so trying to compensate with a
QTRY_COMPARE.

Change-Id: Id437acd810b54e005daaf66ffffd4dd586075ab6
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
iOS: Fix failing assert in QUIView displayLayer()

In layoutSubviews we take the root viewcontroller position into account
when determening the new QWindow geometry, but we were missing this logic
in displayLayer, and would assert if the in-call statusbar was visible.

Since we don't really need the position of the window in displayLayer,
we change the assert to only check the size of the exposed area, which
is independent of the position of the root viewcontroller.

Change-Id: I774b8d9b075518e729f488a789b3a9e584c3f4d3
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@digia.com>
Check if device is opened before trying to create image handler.

Change-Id: I60f1f6890fdd73e489da4aab9928370163f55f58
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Reviewed-by: aavit <eirik.aavitsland@digia.com>
Make QTemporaryDir file name more random

qrand() returns a number between 0 and RAND_MAX, which is only
guaranteed to be bigger than 32767. Dividing it repeatedly means
that the last bytes are always 0.

[ChangeLog][QtCore][QTemporaryDir] Fixed bug in QTemporaryDir name generator that dramatically
reduced randomness of the name.

Change-Id: I90613a652e6384296aed827e2714fe63cd8797ee
Reviewed-by: Rafael Roquetto <rafael.roquetto@kdab.com>
Reviewed-by: Tim Jenssen <tim.jenssen@digia.com>
QMetaType: Rename template type of type-erased iterator operations.

This struct is a specialization for the case that the const_iterator
is a pointer to the value type. Reflect that in the type name.

Change-Id: I0a4ac03840658056285080860baec8313746c71c
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>