OCamlPro
provide outline view
so far that is empty "no symbols found", but the LSP surely has information for that
Yes the LSP has all the information for this already, and as far as I can identify the implementation of the basic feature could be quite straightforward. I'll set this for β though, so we concentrate on completing what's "almost" working already.
With the parser handling the definitions and providing a "go to definition" now, the data is verified to be available in the LSP. I'm looking forward to see this feature being available and in README.md for the ß release!
Note: if I remember correctly the breadcrumb navigation is again another api (using the same lsp data), but also be quite useful.
That may be implemented together or separately.
Looks like possibly the registerDocumentSymbolProvider part for "common" symbols and the registerWorkspaceSymbolProvider for global entry points (=procedure divisions and ENTRY in outermost programs) as well as EXTERNAL items may be useful here; also the registerReferenceProvider seems useful to provide that directly (instead of the indirect query).