[Textmate] `scoped ref` modifier

## 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?
1.85.1
What color theme are you using?
dark plus
## Repro
```c#
class C
{
public static Span CreateSpan(scoped ref T reference, int length)
{
return MemoryMarshal.CreateSpan(ref reference, length);
}
}
```


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