Forward port auto test for fix in QtQuick1

This is the auto-test part of https://codereview.qt-project.org/#change,61117

The test passes as-is but we should forward the fix to ensure that we
don't regress.

Change-Id: Ief8fcfc29d671f33cd1b2c3bab7acfd4fcd1df2b
Reviewed-by: Andrew den Exter <andrew.den.exter@qinetic.com.au>

tests/auto/qml/qqmllanguage/data/DeepComponent.qml

@@ -0,0 +1,7 @@
+import QtQuick 2.0
+Item {
+    property alias someObject: text
+    Text {
+        id: text
+    }
+}

tests/auto/qml/qqmllanguage/data/deepProperty.qml

@@ -0,0 +1,4 @@
+import QtQuick 2.0
+DeepComponent {
+    someObject.font.family: "test"
+}

tests/auto/qml/qqmllanguage/tst_qqmllanguage.cpp

@@ -48,6 +48,7 @@
 #include <QtCore/qfileinfo.h>
 #include <QtCore/qdir.h>
 #include <QSignalSpy>
+#include <QFont>
 
 #include <private/qqmlproperty_p.h>
 #include <private/qqmlmetatype_p.h>
@@ -190,6 +191,8 @@ private slots:
 
     void scopedProperties();
 
+    void deepProperty();
+
 private:
     QQmlEngine engine;
     QStringList defaultImportPathList;
@@ -3150,6 +3153,15 @@ void tst_qqmllanguage::scopedProperties()
     QVERIFY(o->property("success").toBool());
 }
 
+void tst_qqmllanguage::deepProperty()
+{
+    QQmlComponent component(&engine, testFile("deepProperty.qml"));
+    QScopedPointer<QObject> o(component.create());
+    QVERIFY(o != 0);
+    QFont font = qvariant_cast<QFont>(qvariant_cast<QObject*>(o->property("someObject"))->property("font"));
+    QCOMPARE(font.family(), QStringLiteral("test"));
+}
+
 // Tests that the implicit import has lowest precedence, in the case where
 // there are conflicting types and types only found in the local import.
 // Tests that just check one (or the root) type are in ::importsOrder