Fix comparison between signed/unsigned
Fix comparison between signed/unsigned

Change-Id: I0d969ebd523bd20fc36bd8ae63617f2d5a162fe3

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