iOS: Move qmake features out of the generic features and into the makespec

As they are closely tied to the macx-ios-clang mkspec and can't be shared.

Change-Id: Icb59304cc1e4be12732f50175f3f84be289300c2
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@digia.com>
iOS: Remove check for unknown Xcode versions

We assume new Xcode versions and toolchains won't break anything, just
like for toolchains on other platforms.

Change-Id: Idb723dbcdbc82e85db1c55b19cd5fe863ca90933
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@digia.com>
Stabilize tst_qmenu on Mac.

Position cursor outside and move once more.

Task-number: QTBUG-33972

Change-Id: If060f1359361981cf1243d8d2a4ebef181689d74
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@digia.com>
Fix synqt-warnings in QTestLib.

QtTest: WARNING: qtestmouse.h includes QDebug when it should
include QtCore/QDebug. Introduced by
c2106683461bc02da95f7bd014eca17beeec4319 .

Change-Id: I33918c82fddeedef90597bf02c93167348d6b279
Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com>