Jacob Pratt a99b5339f4
Rollup merge of #139141 - mejrs:on_unimpl, r=Noratrieb
Switch some rustc_on_unimplemented uses to diagnostic::on_unimplemented

The use on the SliceIndex impl appears unreachable, there is no mention of "vector indices" in any test output and I could not get it to show up in error messages.
2025-03-30 17:59:29 -04:00
..
2025-03-24 00:29:21 +00:00