…r=jieyouxu

Rehome 30 `tests/ui/issues/` tests to other subdirectories under `tests/ui/` [rust-lang#3 of Batch #2]

Part of rust-lang#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`

…r=jieyouxu

Rehome 30 `tests/ui/issues/` tests to other subdirectories under `tests/ui/` [rust-lang#4 of Batch #2]

Part of rust-lang#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`

…r=jieyouxu

Rehome 26 `tests/ui/issues/` tests to other subdirectories under `tests/ui/` [rust-lang#5 of Batch #2]

Part of rust-lang#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```

This resulted in the following error for me:

    error[E0464]: multiple candidates for `rlib` dependency `rustc_literal_escaper` found
      --> clippy_dev/src/lib.rs:25:1
       |
    25 | extern crate rustc_literal_escaper;
       | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
       |
       = note: candidate #1: /home/pkrones/.rustup/toolchains/nightly-2025-12-25-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_literal_escaper-4f30574e01c3dad1.rlib
       = note: candidate #2: /home/pkrones/.rustup/toolchains/nightly-2025-12-25-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_literal_escaper-c8a0e29ad1040cee.rmeta

Other tools in the Rust repo also take that as an explicit dependency, like rust-analyzer or lint-docs.