rustfmt erases dyn*

[eholk]

While filing #102427, I noticed rustfmt erases dyn* from types.

Input:

#![feature(dyn_star)]
#![allow(incomplete_features)]

use std::fmt::Display;

fn make_dyn_star() -> dyn* Display {
    Box::new(42) as dyn* Display
}

fn main() {
    let x = make_dyn_star();

    println!("{x}");
}

Output:

#![feature(dyn_star)]
#![allow(incomplete_features)]

use std::fmt::Display;

fn make_dyn_star() -> Display {
    Box::new(42) as Display
}

fn main() {
    let x = make_dyn_star();

    println!("{x}");
}

Expected: The input should not have changed because it was already formatted correctly.

[mejrs]

See also rust-lang/rustfmt#5542

[calebcartwright]

Let's close this. We do not use this repository to track work for rustfmt, similar to many of the other dev tools

[eholk]

Sounds good!