QmlDesigner.qmlModelView: optimization

With this patch the properties are set before the newNode is reparented.

Change-Id: Ib79bc8879254586fff8e931d757afc01ad29623b
Reviewed-on: http://codereview.qt.nokia.com/771

Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Thomas Hartmann <Thomas.Hartmann@nokia.com>

src/plugins/qmldesigner/designercore/model/qmlmodelview.cpp

@@ -225,15 +225,14 @@ QmlItemNode QmlModelView::createQmlItemNode(const ItemLibraryEntry &itemLibraryE
             inputModel->attachView(rewriterView.data());
 
             if (rewriterView->errors().isEmpty() && rewriterView->rootModelNode().isValid()) {
+                rewriterView->rootModelNode().variantProperty("x") = propertyPairList.first().second;
+                rewriterView->rootModelNode().variantProperty("y") = propertyPairList.at(1).second;
+
                 ModelMerger merger(this);
                 newNode = merger.insertModel(rewriterView->rootModelNode());
-                newNode.setVariantProperty("x", propertyPairList.first().second);
-                newNode.setVariantProperty("y", propertyPairList.at(1).second);
             }
-
         }
 
-
         if (parentNode.hasDefaultProperty()) {
             parentNode.nodeAbstractProperty(parentNode.defaultProperty()).reparentHere(newNode);
         }