typo: formual -> formula

Change-Id: I39b4c2fc4edd7d609b15fc289dd1b053c749f435
typo: Lable -> Label

Change-Id: I8b9e9f75dd22ee5bff678c5bc0e1fa9381a103de
typo: proeprty -> property

Change-Id: Ib20ca28c2236fc99e1339b6e57e8641a213116c7
HAS_IA2 is never defined

Change-Id: Ib71e98d1250e6d077c593801993b88c2963459b7