[LegacyJIT] Fix assert condition for CNS_DBL
[LegacyJIT] Fix assert condition for CNS_DBL

Fix #12869

russellhadley/coreclr,cshung/coreclr,ragmani/coreclr,tijoytom/coreclr,kyulee1/coreclr,krk/coreclr,cshung/coreclr,tijoytom/coreclr,krk/coreclr,parjong/coreclr,kyulee1/coreclr,wateret/coreclr,mskvortsov/coreclr,YongseopKim/coreclr,AlexGhiondea/coreclr,JosephTremoulet/coreclr,ragmani/coreclr,tijoytom/coreclr,ragmani/coreclr,wtgodbe/coreclr,wtgodbe/coreclr,cydhaselton/coreclr,JonHanna/coreclr,wateret/coreclr,JonHanna/coreclr,JonHanna/coreclr,mmitche/coreclr,rartemev/coreclr,mskvortsov/coreclr,ruben-ayrapetyan/coreclr,kyulee1/coreclr,botaberg/coreclr,parjong/coreclr,JosephTremoulet/coreclr,mskvortsov/coreclr,ragmani/coreclr,mmitche/coreclr,JonHanna/coreclr,russellhadley/coreclr,botaberg/coreclr,ragmani/coreclr,ruben-ayrapetyan/coreclr,poizan42/coreclr,rartemev/coreclr,rartemev/coreclr,rartemev/coreclr,gkhanna79/coreclr,botaberg/coreclr,gkhanna79/coreclr,mmitche/coreclr,mmitche/coreclr,cshung/coreclr,russellhadley/coreclr,hseok-oh/coreclr,hseok-oh/coreclr,ruben-ayrapetyan/coreclr,YongseopKim/coreclr,dpodder/coreclr,JosephTremoulet/coreclr,botaberg/coreclr,cshung/coreclr,wtgodbe/coreclr,ruben-ayrapetyan/coreclr,kyulee1/coreclr,russellhadley/coreclr,hseok-oh/coreclr,cydhaselton/coreclr,JonHanna/coreclr,JosephTremoulet/coreclr,gkhanna79/coreclr,botaberg/coreclr,wtgodbe/coreclr,parjong/coreclr,wateret/coreclr,cydhaselton/coreclr,krk/coreclr,dpodder/coreclr,dpodder/coreclr,poizan42/coreclr,poizan42/coreclr,hseok-oh/coreclr,hseok-oh/coreclr,YongseopKim/coreclr,AlexGhiondea/coreclr,cydhaselton/coreclr,dpodder/coreclr,AlexGhiondea/coreclr,mskvortsov/coreclr,yizhang82/coreclr,wateret/coreclr,parjong/coreclr,mmitche/coreclr,JosephTremoulet/coreclr,parjong/coreclr,YongseopKim/coreclr,wateret/coreclr,yizhang82/coreclr,wtgodbe/coreclr,yizhang82/coreclr,gkhanna79/coreclr,dpodder/coreclr,hseok-oh/coreclr,JonHanna/coreclr,poizan42/coreclr,cydhaselton/coreclr,mskvortsov/coreclr,wateret/coreclr,yizhang82/coreclr,YongseopKim/coreclr,dpodder/coreclr,russellhadley/coreclr,krk/coreclr,cydhaselton/coreclr,parjong/coreclr,AlexGhiondea/coreclr,poizan42/coreclr,ruben-ayrapetyan/coreclr,poizan42/coreclr,rartemev/coreclr,YongseopKim/coreclr,gkhanna79/coreclr,yizhang82/coreclr,mmitche/coreclr,AlexGhiondea/coreclr,botaberg/coreclr,krk/coreclr,ragmani/coreclr,wtgodbe/coreclr,tijoytom/coreclr,cshung/coreclr,rartemev/coreclr,russellhadley/coreclr,krk/coreclr,AlexGhiondea/coreclr,mskvortsov/coreclr,tijoytom/coreclr,yizhang82/coreclr,tijoytom/coreclr,ruben-ayrapetyan/coreclr,gkhanna79/coreclr,kyulee1/coreclr,JosephTremoulet/coreclr,cshung/coreclr,kyulee1/coreclr