coverity#706094 Unintended sign extension
coverity#706094 Unintended sign extension

and

coverity#706093 Unintended sign extension
coverity#706092 Unintended sign extension
coverity#706091 Unintended sign extension

Change-Id: I64ec74ad8eecdb47a6245086ea6e01716a02cd32

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