Deprecate QQueue::swap(i, j)

QList::swapItemsAt() is the replacement.

Change-Id: Id0f194f9b63fd34c612f15e7952c33564f90120c
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>

src/corelib/tools/qqueue.h

@@ -54,7 +54,7 @@ public:
 #ifndef Q_QDOC
     // bring in QList::swap(int, int). We cannot say using QList<T>::swap,
     // because we don't want to make swap(QList&) available.
-    inline void swap(int i, int j) { QList<T>::swap(i, j); }
+    Q_DECL_DEPRECATED inline void swap(int i, int j) { QList<T>::swapItemsAt(i, j); }
 #endif
     inline void enqueue(const T &t) { QList<T>::append(t); }
     inline T dequeue() { return QList<T>::takeFirst(); }