[Rust] Type as namespace

Hi! I’ll open one ticket per issue to keep the discussions targeted 😃 Hope you don’t mind.

In the previous ticket, I didn’t pay attention to one thing I’ve noticed this morning while testing the new version:

WebEvent is properly coloured as a type on its declaration, but not when using the variants in the match statement.

Same thing here:

HexView is a struct (a type) and is coloured as a namespace.

[EvgeniyPeshkov]

Meanwhile, I think, I’ll refactor namespace to scope. Maybe it will help to avoid some misunderstandings in future. scope is more general and can be applied to namespace, module, package, outer class, etc.

[EvgeniyPeshkov]

I believe several days with such highlighting and everyone will love it, maybe most people won’t even notice ))). Thank you very much again. @Geobert , you should be a hero for Rust developers. If they will adopt this extension of course ))).