[REG 4.2 -> 4.3] Projects view does not update when adding file to qrc-file

1. Create a new Qt Quick Application project using defaults.
2. Show the Projects view.
3. If needed, expand the project tree.
4. In the project's file main.qml, right-click on "MainForm".
5. From the context menu, select "Refactoring" -> " Move Component into Separate File".
   A dialog shows up.
6. Click "OK".
   The file "MyComponent.qml" will be created and added to the qrc file, but it will not be shown in the Projects view.
7. Close the project.
8. Open the project again.
   Now "MyComponent.qml" will be shown in the Projects view.

The Projects view should always show the files contained in the qrc-file. In Creator 4.2 this used to work correctly.

Found by Squish test tst_QMLS04.