Signature help request should be able to identify the parameter that the user is typing

[daviwil]

In VS Code, the signature help window appears when the user is typing a command to give them hints about parameters.

It also has the ability to highlight the current parameter while the user is typing. The internal logic for finding parameter hints at the cursor should be able to determine which parameter the user is typing in and return its index so that the UI knows which parameter to highlight.