fxExtensionMain encodes its filenames, but shouldn't

[sandersn]

I'm running code-web locally like so: ./scripts/code-web.sh /home/sandersn/src/test --coi

I have a tsserver that uses @vscode/sync-api-client for its filesystem; @vscode/sync-api-service then uses vscode-test-web for commands like stat, which calls into fsExtensionMain.getStats when code-web is passed a local folder.

The problem is that when passed a Uri with path: "node_modules/@types/node, it calls toString() on that uri, which produces "node_modules/%40types/node". This path is not found on the filesystem. When toString(/*skipEncoding*/ true) is used instead the path is not escaped, and is correctly found on the filesystem.

This might be a limitation of the filesystem provided by @vscode/sync-api-service, but I don't think so. Tagging @jrieken in case he can contribute.