[release/11.0-preview5] Source code updates from dotnet/dotnet#429

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

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darc-release/11.0-preview5-ecd16396-1511-4fa6-b0a5-998740aa388edotnet/symreader:darc-release/11.0-preview5-ecd16396-1511-4fa6-b0a5-998740aa388eCopy head branch name to clipboard