Matt Grimwade

C#11 introduced [file-local types](https://learn.microsoft.com/en-us/dotnet/csharp/language-reference/keywords/file), e.g.: ```c# file Widget { } ``` For such a type TypeNameFormatter's `GetFormattedName` with default options returns a string like: ``` F17747E0EBC6415B90778A501AEC22976F1C544F0DC79EFDAF3C948D89987F740__Widget ``` I suggest that...