[REG] iOS: Launch Crash when Using Launch Images.

git 5.4 branch, taken November 2014.
Checked that it includes the fix:
https://codereview.qt-project.org/#/c/98064/
from QTBUG-41443

Application is crashing but not in debugger
and with a certain probability.

Launch images are improving
reproducibility of the issue.

Compiling the application with dSym,
the crash report from the device find below.

THE STEPS TO REPRODUCE IN BRIEF:

1.1 Use textedit example;
1.2 Add launch images i.e. by opening the project in XCode
and adding the lanch images (attached) to assets or by adding them
in QCreator by following the recent guidelines
https://codereview.qt-project.org/#/c/97813/

• it doesn't matter since crash is ensured by both methods.

1.3 Deploy to iPad-3 with iOS-7.1.2
1.4 Run by tapping the deployed application,
(without debugger, not from QtCreator and not from XCode);
1.5 From several runs observe 30-50% of crashes;
1.6 Repeat the procedure with textedit with added dSym - helps
to symbolize the crash report.

Date/Time: 2014-11-03 09:10:02.236 +0200
OS Version: iOS 7.1.2 (11D257)
Report Version: 104

Exception Type: EXC_BAD_ACCESS (SIGBUS)
Exception Subtype: KERN_PROTECTION_FAILURE at 0x3a711c3c
Triggered by Thread: 0

Thread 0 Crashed:
0 ??? 0x3a711c3c 0 + 980491324
1 MyApp 0x004467a4 QGuiApplicationPrivate::~QGuiApplicationPrivate() (qguiapplication.cpp:1394)
2 MyApp 0x001c0662 QApplicationPrivate::~QApplicationPrivate() (qapplication.cpp:183)
3 MyApp 0x001c067c QApplicationPrivate::~QApplicationPrivate() (qapplication.cpp:180)
4 MyApp 0x001c0698 QApplicationPrivate::~QApplicationPrivate() (qapplication.cpp:180)
5 MyApp 0x00921168 QScopedPointerDeleter<QObjectData>::cleanup(QObjectData*) (qscopedpointer.h:54)
6 MyApp 0x00921102 QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> >::~QScopedPointer() (qscopedpointer.h:101)
7 MyApp 0x0091dc4c QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> >::~QScopedPointer() (qscopedpointer.h:99)
8 MyApp 0x00914d28 QObject::~QObject() (qobject.cpp:1038)
9 MyApp 0x008e6aa8 QCoreApplication::~QCoreApplication() (qcoreapplication.cpp:807)
10 MyApp 0x0044498e QGuiApplication::~QGuiApplication() (qguiapplication.cpp:597)
11 MyApp 0x001c2748 QApplication::~QApplication() (qapplication.cpp:873)
12 MyApp 0x001c27dc QApplication::~QApplication() (qapplication.cpp:804)
13 MyApp 0x000a3386 qtmn (main.cpp:363)
14 MyApp 0x00189866 user_main_trampoline() (qioseventdispatcher.mm:274)