add function parameter

[wellcomez]

function can provide parameter . In my case , several constructor functions appear in same file. If outline can provider parameter information, it can make more easier to choose right one

[stevearc]

The LSP backend doesn't give us enough information for this, but we can probably get it using the TS backend. I think this would be relatively straightforward, but it would be quite a large amount of work. Keeping in the backlog until I have more time; if anyone wants to pick this up I can give pointers.