WIP: Semantic tokens support

[tonich-sh]

Currently is very slow.

[pappasam]

@tonich-sh to run the tests locally: make test

[tonich-sh]

@tonich-sh to run the tests locally: make test

Ok, thanks.

[pappasam]

Sorry for the late response (been distracted recently), I'll respond more quickly from here on out. I'm guessing we haven't-yet implemented a mechanism to expose these capabilities to language clients? When I run :call CocActionAsync('showSemanticHighlightInfo') in coc, it returns the following message:

Semantic highlights info

SemanticTokens provider not found, your languageserver may
not support it

I assume that, given the WIP label, you're still working on exposing that final piece?

[tonich-sh]

I didn't tested this feature with coc, only with VSCode. In VSCode semantic tokens works.
There is another problem: vscode-python first calls SemanticTokens/full and then calls SemanticTokens/range. And I'm trying to make SemanticTokens/full asynchronous.

[pappasam]

👍 sounds good!

[pappasam]

Closing this for now due to inactivity, feel free to re-open if any more progress is made!