Fix build error when using VS2015. (#15598)
Fix build error when using VS2015. (#15598)


poizan42/coreclr,cshung/coreclr,yizhang82/coreclr,krk/coreclr,krk/coreclr,cshung/coreclr,wtgodbe/coreclr,mmitche/coreclr,JosephTremoulet/coreclr,wtgodbe/coreclr,JosephTremoulet/coreclr,ruben-ayrapetyan/coreclr,wtgodbe/coreclr,ruben-ayrapetyan/coreclr,cshung/coreclr,JosephTremoulet/coreclr,cshung/coreclr,wtgodbe/coreclr,ruben-ayrapetyan/coreclr,yizhang82/coreclr,mmitche/coreclr,mmitche/coreclr,yizhang82/coreclr,poizan42/coreclr,JosephTremoulet/coreclr,yizhang82/coreclr,mmitche/coreclr,yizhang82/coreclr,wtgodbe/coreclr,JosephTremoulet/coreclr,krk/coreclr,krk/coreclr,wtgodbe/coreclr,mmitche/coreclr,cshung/coreclr,ruben-ayrapetyan/coreclr,yizhang82/coreclr,ruben-ayrapetyan/coreclr,ruben-ayrapetyan/coreclr,poizan42/coreclr,poizan42/coreclr,krk/coreclr,krk/coreclr,poizan42/coreclr,cshung/coreclr,poizan42/coreclr,mmitche/coreclr,JosephTremoulet/coreclr