`typevar` keyword

[sharpchen]

Details

What editor are you seeing the problem in? (e.g. Atom, Visual Studio Code, etc.)
vscode
What version of the editor are you using?
1.88.1
What color theme are you using?
dark-plus

Repro

[AttributeUsage(AttributeTargets.All)]
class MyAttributeAttribute : Attribute { }

class Foo<[typevar: MyAttribute] T, [typevar: MyAttribute] U>
{
    public static void F<[typevar: MyAttribute] X, [typevar: MyAttribute] Y>() { }
}

Please provide a code example and (optionally) a screenshot demonstrating the problem.