Cache select converted tokens to avoid unnecessary token duplication.
Cache select converted tokens to avoid unnecessary token duplication.

Change-Id: I3a63d5cbbc1cdc37d681ffd41ec22ff65e56cc0d

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