Avoid undefined left shift of negative integer
Avoid undefined left shift of negative integer

Change-Id: Ib857f7c802b4ce65ec352b67e6acde59965c893a

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