Rollup merge of #144462 - Kobzol:pretty-print-self-profile-args, r=RalfJung

Allow pretty printing paths with `-Zself-profile-events=args`

`-Zself-profile-events=args` is pretty heavy and can pretty print a lot of stuff. Rather than hunting down specific cases where this happens, I'd just allow calling `trimmed_def_paths` in this mode.

Fixes: rust-lang/rust#144457

r? `@RalfJung`

Author: matthiaskrgr