Rehome tests/ui/issues/ tests to other subdirectories under tests/ui/

[Oneirical]

Part of #133895

Methodology:

1. Refer to the previously written tests/ui/SUMMARY.md
2. Find an appropriate category for the test, using the original issue thread and the test contents.
3. Add the issue URL at the bottom (not at the top, as that would mess up stderr line numbers)
4. Rename the tests to make their purpose clearer

Inspired by the methodology that @Kivooeo was using.

r? @jieyouxu

[rustbot]

jieyouxu is currently at their maximum review capacity.
They may take a while to respond.

[rustbot]

This PR modifies tests/ui/issues/. If this PR is adding new tests to tests/ui/issues/,
please refrain from doing so, and instead add it to more descriptive subdirectories.

[bors]

☔ The latest upstream changes (presumably #145085) made this pull request unmergeable. Please resolve the merge conflicts.

[jieyouxu]

Intended to be split
@rustbot author

[rustbot]

Reminder, once the PR becomes ready for a review, use @rustbot ready.

[bors]

☔ The latest upstream changes (presumably #145644) made this pull request unmergeable. Please resolve the merge conflicts.

[rustbot]

This PR was rebased onto a different master commit. Here's a range-diff highlighting what actually changed.

Rebasing is a normal part of keeping PRs up to date, so no action is needed—this note is just to help reviewers.