Generic parameter reordering diagnostic doesn't contain bounds

[varkor]

struct A;

impl A {
    pub fn do_things<T, 'a, 'b: 'a>() {
        println!("panic");
    }
}

produces:

error: lifetime parameters must be declared prior to type parameters
 --> src/lib.rs:4:25
  |
4 |     pub fn do_things<T, 'a, 'b: 'a>() {
  |                     ----^^--^^----- help: reorder the parameters: lifetimes, then types, then consts: `<'a, 'b, T>`

which should be:

error: lifetime parameters must be declared prior to type parameters
 --> src/lib.rs:4:25
  |
4 |     pub fn do_things<T, 'a, 'b: 'a>() {
  |                     ----^^--^^----- help: reorder the parameters: lifetimes, then types, then consts: `<'a, 'b: 'a, T>`

[varkor]

It should also probably not contain the phrase , then consts if const generics aren't enabled.

[davidtwco]

Submitted #59572 to address this.