Keep negative cast results in R2R when they can't change across versions - #135899

Keep negative cast results in R2R when they can't change across versions#135899

lewing merged 3 commits into

dotnet:maindotnet/runtime:mainfrom

lewing:lewing-r2r-box-isinst-foldlewing/runtime:lewing-r2r-box-isinst-foldCopy head branch name to clipboard