Omit inlay hints for function argument names when the input matches it

[Gankra]

An IMO very nice feature of rust-analyzer is that it omits inlay hints of names when the thing being passed to the name matches:

ty has no such mercy:

I've found this sort of thing to be a surprisingly effective feedback mechanism for catching mistakes. If I see a call riddled with inlay hints for arguments it stands out that I might have mixed up arguments! Also in general it encourages my codebases to have consistent names for the same thing, which is a nice little virtuous nudge.

[MichaReiser]

Agree, this is mostly noise :)

This should be a very easy win