Remove unnecessary cast to DefType
Remove unnecessary cast to DefType

yizhang82/corert,shrah/corert,sandreenko/corert,tijoytom/corert,sandreenko/corert,yizhang82/corert,krytarowski/corert,gregkalapos/corert,tijoytom/corert,kyulee1/corert,botaberg/corert,shrah/corert,krytarowski/corert,yizhang82/corert,sandreenko/corert,kyulee1/corert,botaberg/corert,tijoytom/corert,kyulee1/corert,tijoytom/corert,botaberg/corert,shrah/corert,krytarowski/corert,sandreenko/corert,shrah/corert,krytarowski/corert,gregkalapos/corert,gregkalapos/corert,kyulee1/corert,gregkalapos/corert,botaberg/corert,yizhang82/corert