QQuickPopupPrivate: unbreak ubsan build

The tst_drawer test uses members of the class, but it was not (autotest-)
exported. That's no problem as long as the function called is inline, or
a data member is accessed, but in a UBSan build, the typeid of a poly-
morphic class is checked on each access, so the typeinfo object must be
exported.

Fix by autotest-exporting the class and defining the dtor out-of-line to
pin the typeinfo and vtabe to a single TU.

Change-Id: I1524e63a330dbdb0ae1ceb60263b589734bfd3aa
Reviewed-by: J-P Nurmi <jpnurmi@qt.io>

1 files changed, 2 insertions, 1 deletions

diff --git a/src/quicktemplates2/qquickpopup_p_p.h b/src/quicktemplates2/qquickpopup_p_p.h
index c9f5e264..c8c83ada 100644
--- a/src/quicktemplates2/qquickpopup_p_p.h
+++ b/src/quicktemplates2/qquickpopup_p_p.h
@@ -142,12 +142,13 @@ private:
     QQuickPopupPrivate *m_popup;
 };
 
-class QQuickPopupPrivate : public QObjectPrivate, public QQuickItemChangeListener
+class Q_AUTOTEST_EXPORT QQuickPopupPrivate : public QObjectPrivate, public QQuickItemChangeListener
 {
     Q_DECLARE_PUBLIC(QQuickPopup)
 
 public:
     QQuickPopupPrivate();
+    ~QQuickPopupPrivate();
 
     static QQuickPopupPrivate *get(QQuickPopup *popup)
     {