vsls:/ URIs are converted to file:/ URIs on the way to analysis server, causes issues with Live Share

[DanTup]

If you open a project in Live Share, we get a root folder of vsls:/, but this code here converts it to file:///:

Dart-Code/src/extension/analysis/analyzer_lsp.ts

Line 421 in a895d3c

const fileUri = vs.Uri.file(fsPath(uri, { useRealCasing: !!config.normalizeFileCasing })).toString();

This results in the server analyzing the entire disk.