RequiresAssemblyFilesAnalyzer throws InvalidCastException

[nagya]

Version Used: 6.0.200, bug is new in this version, i.e. was not present in 6.0.1

Steps to Reproduce:

1. Test1.zip
2. dotnet build

Expected Behavior:

No compile time exception and no warning.

Actual Behavior:

CSC : warning AD0001: Analyzer 'ILLink.RoslynAnalyzer.RequiresAssemblyFilesAnalyzer' threw an exception of type 'System.InvalidCastException' with message 'Unable to cast object of type 'Microsoft.CodeAnalysis.CSharp.Symbols.PublicModel.TypeParameterSymbol' to type 'Microsoft.CodeAnalysis.INamedTypeSymbol'.'. 

Repro project details:

PublishSingleFile=true must be set in the project file, and both type constraints are needed in the source file.

Test1.csproj

<Project Sdk="Microsoft.NET.Sdk">
  <PropertyGroup>
    <TargetFramework>net6.0</TargetFramework>
    <PublishSingleFile>true</PublishSingleFile>
  </PropertyGroup>
</Project>

Class1.cs

namespace Test1;

public abstract class Class1<T> where T : Class1<T>, new() { }

[Youssef1313]

This is not related to dotnet/roslyn. It should go in dotnet/linker instead where the implementation of this analyzer exists.

https://github.com/dotnet/linker/blob/2999a6a9dd884d554be18d3c86a4a9db4b61e156/src/ILLink.RoslynAnalyzer/RequiresAssemblyFilesAnalyzer.cs