Fix ubsan build of qtdeclarative

Avoid using private classes when not exported

Pick-to: 6.7
Change-Id: Ia2dd8019719739a2cb66a0770f0156ab711a2dd8
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
Reviewed-by: Mitch Curtis <mitch.curtis@qt.io>

src/quicktestutils/quick/viewtestutils.cpp

@@ -394,7 +394,7 @@ void QQuickViewTestUtils::StressTestModel::updateModel()
     }
 }
 
-#if QT_CONFIG(quick_itemview)
+#if QT_CONFIG(quick_itemview) && defined(QT_BUILD_INTERNAL)
 bool QQuickViewTestUtils::testVisibleItems(const QQuickItemViewPrivate *priv, bool *nonUnique, FxViewItem **failItem, int *expectedIdx)
 {
     QHash<QQuickItem*, int> uniqueItems;

src/quicktestutils/quick/viewtestutils_p.h

@@ -168,7 +168,7 @@ namespace QQuickViewTestUtils
         int m_rowCount;
     };
 
-#if QT_CONFIG(quick_itemview)
+#if QT_CONFIG(quick_itemview) && defined(QT_BUILD_INTERNAL)
     [[nodiscard]] bool testVisibleItems(const QQuickItemViewPrivate *priv,
         bool *nonUnique, FxViewItem **failItem, int *expectedIdx);
 #endif

tests/auto/quickcontrols/qquickiconlabel/tst_qquickiconlabel.cpp

@@ -308,6 +308,7 @@ void tst_qquickiconlabel::colorChanges()
 
 void tst_qquickiconlabel::iconSourceContext()
 {
+#if defined(QT_BUILD_INTERNAL)
     QQmlEngine engine;
     QQmlComponent component(&engine, testFileUrl("iconSourceContext.qml"));
     QVERIFY2(component.isReady(), qPrintable(component.errorString()));
@@ -337,7 +338,7 @@ void tst_qquickiconlabel::iconSourceContext()
                 = static_cast<QQuickImagePrivate *>(QQuickItemPrivate::get(image));
         QCOMPARE(imagePrivate->pix.url(), testFileUrl("a.png"));
     }
-
+#endif
 }
 
 QTEST_MAIN(tst_qquickiconlabel)