[main] Source code updates from dotnet/runtime

[dotnet-maestro]

Note

This is a codeflow update. It may contain both source code changes from
the source repo
as well as dependency updates. Learn more here.

This pull request brings the following source code changes

From https://github.com/dotnet/runtime

• Subscription: 6458ae35-db00-43d0-af59-e57a01ca3120
• Build: 20260201.9 (299728)
• Date Produced: February 2, 2026 1:24:35 AM UTC
• Commit: c55578ba89a7bd7ef4ad658a364ae207b1db0df1
• Commit Diff: 062177e...c55578b
• Branch: main

Diff the source with this PR branch

darc vmr diff --name-only https://github.com/dotnet/runtime:c55578ba89a7bd7ef4ad658a364ae207b1db0df1..https://github.com/dotnet/dotnet:darc-main-6ed2af82-bf62-44b8-9f75-a33ff2fb7472

[dotnet-maestro]

Note

PRs from original repository included in this codeflow update:

• Add IdnMapping Span-based APIs (TryGetAscii/TryGetUnicode) runtime#123593
• Replace mangod9 with agocke under area-vm-coreclr in resourceManagement.yml runtime#123785
• [NativeAOT] Do not overwrite throw frame with first rethrow frame runtime#123763
• Update documentation for AddHostedService. runtime#123658
• Remove isAsync flag validation from FileStream constructors runtime#123761
• Fix RangeOps::And incorrect range analysis for bitwise AND runtime#123584
• Move OneLocBuild back to run on every main commit runtime#123791
• [Mono]: Fix stackwalk callbacks calling mono_jit_info_get_method in async signal safe mode. runtime#123346
• [clr-interp] Cause compilation to be skipped when using function only used by tail-call helper runtime#123508
• Add File.OpenNullHandle() for efficient process I/O redirection runtime#123483
• Enable cached interface dispatch by default on non-JIT platforms runtime#123776
• Remove CHK_FLOW_UPDATE stress mode runtime#122970
• Fix bug in RangeOps::ShiftRight runtime#123794
• Add initOpt, VTable fixups, type forwarders runtime#123772
• Remove legacy XUnitWrapper test tree infrastructure runtime#123110
• Use IndexOfAny in Console's TermInfo runtime#123646

💡 You may consult the FAQ for more information or tag @dotnet/prodconsvcs for assistance.

[dotnet-maestro]

Note

PRs from original repository included in this codeflow update:

• Fix length when getting property from host runtime#123774
• Migrate test exclusions from issues.targets to inline ActiveIssue attributes runtime#123248
• Fix GetThreadStaticsBase to be included in R2R images runtime#123812
• Fix LINQ Append/Prepend GetCount overflow to throw OverflowException runtime#123821
• SPMI: Update superpmi-collect queues from osx13 to osx15 runtime#123839
• JIT: fix arm32 dump/disasm of references to async resume info runtime#123814
• JIT: remove anticipated demand for throw helpers runtime#123781

💡 You may consult the FAQ for more information or tag @dotnet/prodconsvcs for assistance.

[dotnet-maestro]

Note

PRs from original repository included in this codeflow update:

• Remove no-op SR.Format calls with single message argument runtime#123834
• Look through async thunks in RuntimeHelpers.PrepareMethod runtime#123838
• Remove extra array allocations from TarHeader.GetLongMetadataStream runtime#123835
• Remove no-op string.Format calls with single message argument runtime#123842
• SPMI: Update superpmi-diffs queue to OSX.15.Arm64.Open runtime#123840
• Fix incorrect Vector256->Vector512 in SpanHelpers runtime#123850
• Optimize logic in SliceLongerSpanToMatchShorterLength runtime#121104
• Remove unused ToUpperInvariantMode methods runtime#123852
• Use [] instead of Array.Empty in corelib runtime#123854
• Cleanup dead code in object manipulation runtime#123849
• Fixed LoggerMessageGenerator message escaping. runtime#123787
• Replace outdated Array.Empty comments with correct reason runtime#123862

💡 You may consult the FAQ for more information or tag @dotnet/prodconsvcs for assistance.