Rollup merge of #96868 - nrc:turbo-stable, r=jhpratt,nbdd0121,nagisa

Rollup merge of #96868 - nrc:turbo-stable, r=jhpratt,nbdd0121,nagisa

Stabilize explicit_generic_args_with_impl_trait

This is a stabilisation PR for `explicit_generic_args_with_impl_trait`.

* [tracking issue](https://github.com/rust-lang/rust/issues/83701)
  - [Stabilisation report](https://github.com/rust-lang/rust/issues/83701#issuecomment-1109949897)
  - [FCP entered](https://github.com/rust-lang/rust/issues/83701#issuecomment-1120285703)
* [implementation PR](https://github.com/rust-lang/rust/pull/86176)
* [Reference PR](https://github.com/rust-lang/reference/pull/1212)
* There is no mention of using the turbofish operator in the book (other than an entry in the operator list in the appendix), so there is no documentation to change/add there, unless we felt like we should add a section on using turbofish, but that seems orthogonal to `explicit_generic_args_with_impl_trait`