Add missing contracts on GCHeapUtilities
Add missing contracts on GCHeapUtilities

[tfs-changeset: 1628632]

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