Revises isSingleFloat32Struct
Revises isSingleFloat32Struct

isSingleFloat32Struct currently stops when the current handle is not a
value class handle, or it has more than one field.

If not, it proceeds to the next step with the assumption that the current.

Unfortunately, if the current handle is not a value class, but has one
field (somehow), getFieldInClass call raises an assertion failure
discussed in #6569.

This commit tries to fix this invalid terminating condition.

poizan42/coreclr,krk/coreclr,kyulee1/coreclr,JonHanna/coreclr,mmitche/coreclr,rartemev/coreclr,russellhadley/coreclr,cmckinsey/coreclr,neurospeech/coreclr,rartemev/coreclr,pgavlin/coreclr,mskvortsov/coreclr,alexperovich/coreclr,JosephTremoulet/coreclr,tijoytom/coreclr,sjsinju/coreclr,jamesqo/coreclr,mskvortsov/coreclr,YongseopKim/coreclr,dasMulli/coreclr,YongseopKim/coreclr,sagood/coreclr,poizan42/coreclr,poizan42/coreclr,sjsinju/coreclr,parjong/coreclr,AlexGhiondea/coreclr,poizan42/coreclr,yeaicc/coreclr,dasMulli/coreclr,Dmitry-Me/coreclr,jamesqo/coreclr,gkhanna79/coreclr,AlexGhiondea/coreclr,James-Ko/coreclr,gkhanna79/coreclr,dpodder/coreclr,cydhaselton/coreclr,cmckinsey/coreclr,Dmitry-Me/coreclr,qiudesong/coreclr,sagood/coreclr,tijoytom/coreclr,yizhang82/coreclr,sjsinju/coreclr,gkhanna79/coreclr,krytarowski/coreclr,James-Ko/coreclr,cydhaselton/coreclr,hseok-oh/coreclr,cshung/coreclr,yizhang82/coreclr,kyulee1/coreclr,gkhanna79/coreclr,Dmitry-Me/coreclr,mmitche/coreclr,poizan42/coreclr,botaberg/coreclr,sagood/coreclr,ruben-ayrapetyan/coreclr,botaberg/coreclr,JosephTremoulet/coreclr,cmckinsey/coreclr,tijoytom/coreclr,sagood/coreclr,sjsinju/coreclr,hseok-oh/coreclr,sagood/coreclr,dpodder/coreclr,cshung/coreclr,AlexGhiondea/coreclr,mskvortsov/coreclr,JonHanna/coreclr,botaberg/coreclr,sjsinju/coreclr,krk/coreclr,pgavlin/coreclr,wtgodbe/coreclr,qiudesong/coreclr,alexperovich/coreclr,tijoytom/coreclr,russellhadley/coreclr,qiudesong/coreclr,ragmani/coreclr,dpodder/coreclr,AlexGhiondea/coreclr,alexperovich/coreclr,hseok-oh/coreclr,AlexGhiondea/coreclr,cmckinsey/coreclr,russellhadley/coreclr,hseok-oh/coreclr,krk/coreclr,tijoytom/coreclr,cshung/coreclr,mmitche/coreclr,mskvortsov/coreclr,wtgodbe/coreclr,alexperovich/coreclr,cmckinsey/coreclr,yizhang82/coreclr,neurospeech/coreclr,neurospeech/coreclr,yeaicc/coreclr,mskvortsov/coreclr,ruben-ayrapetyan/coreclr,krk/coreclr,botaberg/coreclr,Dmitry-Me/coreclr,wtgodbe/coreclr,jamesqo/coreclr,hseok-oh/coreclr,ruben-ayrapetyan/coreclr,kyulee1/coreclr,YongseopKim/coreclr,JosephTremoulet/coreclr,JonHanna/coreclr,wtgodbe/coreclr,ruben-ayrapetyan/coreclr,wateret/coreclr,poizan42/coreclr,mmitche/coreclr,James-Ko/coreclr,parjong/coreclr,yeaicc/coreclr,sagood/coreclr,alexperovich/coreclr,jamesqo/coreclr,JonHanna/coreclr,krytarowski/coreclr,dasMulli/coreclr,cshung/coreclr,dasMulli/coreclr,wateret/coreclr,ragmani/coreclr,hseok-oh/coreclr,cshung/coreclr,mmitche/coreclr,gkhanna79/coreclr,YongseopKim/coreclr,russellhadley/coreclr,wateret/coreclr,parjong/coreclr,dpodder/coreclr,rartemev/coreclr,krytarowski/coreclr,cmckinsey/coreclr,pgavlin/coreclr,Dmitry-Me/coreclr,yizhang82/coreclr,pgavlin/coreclr,botaberg/coreclr,YongseopKim/coreclr,rartemev/coreclr,kyulee1/coreclr,wtgodbe/coreclr,jamesqo/coreclr,qiudesong/coreclr,ragmani/coreclr,cmckinsey/coreclr,ruben-ayrapetyan/coreclr,neurospeech/coreclr,cshung/coreclr,mskvortsov/coreclr,krk/coreclr,JonHanna/coreclr,jamesqo/coreclr,James-Ko/coreclr,yeaicc/coreclr,wateret/coreclr,yeaicc/coreclr,parjong/coreclr,cydhaselton/coreclr,qiudesong/coreclr,yizhang82/coreclr,dasMulli/coreclr,Dmitry-Me/coreclr,krytarowski/coreclr,James-Ko/coreclr,ruben-ayrapetyan/coreclr,ragmani/coreclr,kyulee1/coreclr,ragmani/coreclr,dpodder/coreclr,dpodder/coreclr,YongseopKim/coreclr,alexperovich/coreclr,cydhaselton/coreclr,JosephTremoulet/coreclr,parjong/coreclr,mmitche/coreclr,yeaicc/coreclr,gkhanna79/coreclr,wtgodbe/coreclr,kyulee1/coreclr,krytarowski/coreclr,rartemev/coreclr,russellhadley/coreclr,JonHanna/coreclr,wateret/coreclr,JosephTremoulet/coreclr,rartemev/coreclr,dasMulli/coreclr,botaberg/coreclr,russellhadley/coreclr,parjong/coreclr,pgavlin/coreclr,qiudesong/coreclr,krytarowski/coreclr,neurospeech/coreclr,sjsinju/coreclr,pgavlin/coreclr,yizhang82/coreclr,ragmani/coreclr,neurospeech/coreclr,krk/coreclr,AlexGhiondea/coreclr,dasMulli/coreclr,wateret/coreclr,cydhaselton/coreclr,yeaicc/coreclr,James-Ko/coreclr,tijoytom/coreclr,cydhaselton/coreclr,JosephTremoulet/coreclr,Dmitry-Me/coreclr