feat: add mvp language server

[kitsonk]

Resolves #8400

This is still a not quite ready for merging PR, but it has gotten far enough to get wider review/thoughts input. Things I know I still need to do:

• Integration Test Infrastructure
• lots moar unit tests we can tackle this as part of the follow up
• integrate hover
• figure out remote module resolution
• create a list of other features we need to add (Deno language server to-do list #8643)

[kitsonk]

I will add more detailed instructions later, but if you want to try it out, you need to build this branch, and have it available in your path as deno and use this branch of vscode_deno: denoland/vscode_deno#263. When you have the vscode_deno project checked out and installed and built (npm i && npm run compile && npm i) open in vscode and go to the debug Run panel and choose the Launch Client option and it will open up a window with the extension enabled.

[ry]

New version of vscode-deno has been published at https://marketplace.visualstudio.com/items?itemName=denoland.vscode-deno-canary

ref denoland/vscode_deno#272

[ry]

I'm trying to use the published "Deno (Canary)" extension and seeing double messages. I have the original deno extension disabled. Any idea what's happening here?

[kitsonk]

I'm trying to use the published "Deno (Canary)" extension and seeing double messages. I have the original deno extension disabled. Any idea what's happening here?

Hmmm... that is strange. You can see the source is both ts and deno-lint, it would seem that the extension isn't suppressing the messages from TS, but thinks it is enabled. 😖

[bartlomieju]

LGTM 🚀 massive feature

[ry]

LGTM!