Relative path does not in Typescript/Javascript cells in vscode Notebooks.

Does this issue occur when all extensions are disabled?: Yes/No

• VS Code Version: 1.83.1
• OS Version: windows 10

Steps to Reproduce:

1. install https://marketplace.visualstudio.com/items?itemName=donjayamanne.typescript-notebook or https://marketplace.visualstudio.com/items?itemName=ms-toolsai.jupyter-renderers
2. open a workspace
3. create typescript file 'a.ts' with some exports in the workspace, for example export const a = 1
4. create a notebook with one of the extensions and save it next to the typescript file.
5. add a cell with language type 'typescript' or 'javascript'.
6. import the exported symbol from step 3, for example: import {a} from './a.ts'
7. right click on file name and click go to definition

Expected:

1. The symbol imported normally.
2. go to definition lead you to the file next to it

Actually:

1. The import has a red underline with TS(2307) Cannot find module
2. go to definition lead you to a error page that has a nonsense path like this

Note:

It seems this is caused by the way typescript language extension handles virtual paths. The typescript language extension put all virtual path under ^/{protocol}/{authority}/{file-path}#{cell-id} Which end up being treated as {workspace root}/^/{protocol}/{authority}/{file-path}#{cell-id} by the language server And thus broke all relative paths.

I made a experiment about appending the cell id and authority to file name instead, and it seems fix this issue.

https://github.com/mmis1000/vscode/commit/bb9910b06271537ef71427f21d75a955a7594b84

Related issue: https://github.com/DonJayamanne/typescript-notebook/issues/79