Auto merge of #98279 - cjgillot:all-fresh-nofn, r=petrochenkov

Create elided lifetime parameters for function-like types

Split from rust-lang/rust#97720

This PR refactor lifetime generic parameters in bare function types and parenthesized traits to introduce the additional required lifetimes as fresh parameters in a `for<>` bound.

This PR does the same to lifetimes appearing in closure signatures, and as-if introducing `for<>` bounds on closures (without the associated change in semantics).

r? `@petrochenkov`

Author: bors