DWARF does not mention Self type

I wrote a simple test program using the Self type:

struct Something(i32);

impl Something {
    fn x(self: &Self) -> i32 { self.0 }
}

fn main() {
    let y = Something(32);
    let z = y.x();

    ()
}

When I examine the resulting DWARF, I don't see any mention of Self. I think it should be emitted as a typedef pointing to Something.

1. Triage: no changes I'm aware of

   Steve Klabnik at 2019-12-25 16:36:19

2. Visited during wg-debugging triage. We validated that currently no information about a Self type is generated in debuginfo. Seems like a nice enhancement but not required for debugging to work well.

   Wesley Wiser at 2023-03-20 14:05:39