Fix: Inline parameter hints for inner bindings

[rosskuehl]

Fixes fsharp/issues/14501

By keeping track of long identifier ending positions for function calls, we can avoid recapturing parameters from the outer scope while traversing the syntax tree for hints.

There is likely a more efficient/direct way to patch this behavior, but this is a relatively simple change and appears to work as expected 👨‍🍳👍

Screenshots

Before

After

[T-Gro]

In PR's related to visual editor features, can we please have screenshot(s) ?
Ideally before & after, at least the 'after' one.

Seeing the test, I think it also makes sense (separate to this PR!) to add common Fsharp.Core functions/arguments to a blacklist ;; "mapping" from Seq/List/Array.map being one of them.

[rosskuehl]

Thanks for the feedback @T-Gro! I added before & after screenshots to the description.

[baronfel]

I think it also makes sense (separate to this PR!) to add common Fsharp.Core functions/arguments to a blacklist ;; "mapping" from Seq/List/Array.map being one of them

We did just that in FSAC (after looking at the Rust-Analyzer decisions here) and tried to capture our heuristics:

https://github.com/fsharp/FsAutoComplete/blob/d74332594a29b8bae412032a2e75a4818f7a633f/src/FsAutoComplete.Core/InlayHints.fs#L337-L354