Rollup merge of #136258 - notriddle:notriddle/issue-d, r=fmease

rustdoc: rename `issue-\d+.rs` tests to have meaningful names (part 11)

Follow up

* rust-lang/rust#134053
* rust-lang/rust#130287

et al

As always, it's easier to review the commits one at a time. Don't use the Files Changed tab. It's confusing.

Author: jhpratt