Suppress SYSLIB5005 for System.Formats.Nrbf as experimental

[jeffhandley]

With dotnet/runtime#107905, we are marking System.Formats.Nrbf as [Experimental], using diagnostic ID SYSLIB5005. This suppresses the diagnostics produced by that annotation.

We plan to backport this change to release/9.0 and release/9.0-rc2.

Microsoft Reviewers: Open in CodeFlow

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 75.26076%. Comparing base (d174e80) to head (044c77f).
Report is 3 commits behind head on main.

Additional details and impacted files

@@                 Coverage Diff                 @@
##                main      #12156         +/-   ##
===================================================
- Coverage   75.26502%   75.26076%   -0.00427%     
===================================================
  Files           3085        3085                 
  Lines         633629      633629                 
  Branches       46839       46839                 
===================================================
- Hits          476901      476874         -27     
- Misses        153330      153341         +11     
- Partials        3398        3414         +16     

Flag	Coverage Δ
Debug	75.26076% <ø> (-0.00427%)	⬇️
integration	18.01604% <ø> (+0.00035%)	⬆️
production	48.56189% <ø> (-0.00949%)	⬇️
test	97.02282% <ø> (ø)
unit	45.60027% <ø> (+0.02004%)	⬆️

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[lonitra]

/backport to release/9.0

[github-actions]

Started backporting to release/9.0: https://github.com/dotnet/winforms/actions/runs/10908125931

[lonitra]

/backport to release/9.0-rc2

[github-actions]

Started backporting to release/9.0-rc2: https://github.com/dotnet/winforms/actions/runs/10908136459

[Tanya-Solyanik]

@jeffhandley - is there a workitem to track removing experimental from this assembly?

[jeffhandley]

@Tanya-Solyanik No, we don't have a tracking item for that. We'll monitor adoption and feedback on the APIs and evaluate during .NET 10 if we've reached a high enough degree of confidence to remove it before .NET 10 hits GA.