Mention `ParameterInfo.Name` is null when inspecting optimized assembly

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**Issue moved from MicrosoftDocs/feedback#3981**
- Please respond to @elringus.

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_From @elringus on Tuesday, January 23, 2024 3:00:40 PM_

Currently, docs for `ParameterInfo.Name` mention that the value is null when accessed from a return parameter: https://learn.microsoft.com/en-us/dotnet/api/system.reflection.parameterinfo.name?view=net-8.0#remarks

I've spent quite some time debugging before stumbled upon this issue: https://github.com/dotnet/runtime/issues/73188#issuecomment-1201715264 Which explains that it's also null when inspecting an optimized assembly.

Please add a remark to the docs about this corner case.