QMetaObject::invokeMethod to QHostInfoResult

Hi,

we like to use qtHookData[QHooks::AddQObject] to add some "introspection" for debugging purposes in our application. It works good but if we want to add more stuff we hit a little annoying Q_ASSERT.
 

ASSERT: "slotObj" in file kernel/qhostinfo.cpp, line 185

 
It would be helpful if the QHostInfoResult::postResultsReady could use a more explicit call to provide the data instead of generic QEvent::MetaCall.

bool QHostInfoResult::event(QEvent *event)
{
    if (event->type() == QEvent::MetaCall) {
        Q_ASSERT(slotObj);

We just introduced a sample QMetaObject::invokeMethod here to call a lambda. But since it is a QEvent::MetaCall it will trigger that assert in bool QHostInfoResult::event(QEvent *event) because it shouldn't be called like this.

extern "C" Q_DECL_EXPORT void internal_addObject(QObject* pObj)
{
	const std::lock_guard locker(cMutex);

	cAllQObjects.push_back(pObj);

	if (cPrintAdd)
	{
		QMetaObject::invokeMethod(pObj, [pObj] {
					QtHooks::print(pObj);
				}, Qt::QueuedConnection);
	}
}

Mechanism was introduced by https://code.qt.io/cgit/qt/qtbase.git/commit/?id=739b3bfb2fa