Diagnostics related feature requests and improvements

[mavasani]

This issue tracks all diagnostics/analyzers related feature requests and improvements in VSCode C# extension:

• [x] https://github.com/dotnet/vscode-csharp/issues/5728
• [ ] https://github.com/dotnet/vscode-csharp/issues/5949
• [ ] https://github.com/dotnet/vscode-csharp/issues/6147
• [ ] https://github.com/dotnet/vscode-csharp/issues/4595
• [ ] https://github.com/dotnet/vscode-csharp/issues/5950
• [ ] https://github.com/dotnet/vscode-csharp/issues/4747
• [x] https://github.com/dotnet/vscode-csharp/issues/5735
• [ ] https://github.com/dotnet/vscode-csharp/issues/5727
• [x] https://github.com/dotnet/vscode-csharp/issues/5885
• [x] https://github.com/dotnet/vscode-csharp/issues/5874
• [x] https://github.com/dotnet/vscode-csharp/issues/5634
• [x] https://github.com/dotnet/vscode-csharp/issues/5998
• [x] https://github.com/dotnet/vscode-csharp/issues/6057

[mavasani]

@arkalyanms @mikadumont - not sure if there is already a story tracking all diagnostics related work. If so, feel free to dupe this one and close it out.

[marcospgp]

Is there an issue for being able to load analyzers by linking to the .dll instead of installing them as a nuget package? This is required in order to use third party analyzers with Unity:

Unity doesn’t support the installation of Roslyn Analyzers or source generators through NuGet directly

https://docs.unity3d.com/Manual/roslyn-analyzers.html