[release/11.0-preview4] Source code updates from dotnet/dotnet#423

dotnet-maestro[bot] wants to merge 1 commit intorelease/11.0-preview4dotnet/symreader:release/11.0-preview4from

darc-release/11.0-preview4-b933fe3f-2590-4a7a-894c-95096bcda0d8dotnet/symreader:darc-release/11.0-preview4-b933fe3f-2590-4a7a-894c-95096bcda0d8Copy head branch name to clipboard