[main] Source code updates from dotnet/dotnet - #453

[main] Source code updates from dotnet/dotnet#453

dotnet-maestro[bot] wants to merge 1 commit into

maindotnet/symreader:mainfrom

darc-main-63b62ce3-150c-485e-9054-eb994a89f21cdotnet/symreader:darc-main-63b62ce3-150c-485e-9054-eb994a89f21cCopy head branch name to clipboard