convert XubString->OUString in WinSalMenuItem
convert XubString->OUString in WinSalMenuItem

Change-Id: Id3d135d3d7fedfca02f1b120c7ef441ef4c8a04d

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core