SyntaxGenerator doesn't support generation of record types

[ViktorHofer]

Version Used: 4.6.0-2.23081.23

SyntaxGenerator doesn't support generation of record types. The expected behavior below (compile input) is instead transformed to a class.

https://github.com/dotnet/roslyn/blob/main/src/Compilers/Core/Portable/Symbols/TypeKind.cs

The TypeKind enum does not contain record kind. For records INamedTypeSymbol.TypeKind is set to Class. That said, there is a field bool ITypeSymbol.IsRecord.

Expected Behavior:

public record GraphBuildOptions
{
    public bool Build { get; init; } = true;
}

Actual Behavior:

/// results of the roslyn-based GenAPI
public class GraphBuildOptions : System.IEquatable<GraphBuildOptions>
{
    public bool Build { get; set; } = true;

    protected virtual System.Type EqualityContract { get; }
}

cc @CyrusNajmabadi