[Mirroring] Spark ComboBox does not align the text of its items to right when direction = rtl

Steps to reproduce:
1. Import and run the attached simple test project.
2. Click on the arrow to open the combobox.
3. Check the alignment of the text of the items of the combobox.

Actual Results:

The text of the combo items is left-aligned.

Expected Results:

The text of the combo items is right-aligned.

Workaround (if any):

None found.

Reproduced with SDK 4.1.0.16076.