Rollup merge of #142132 - Kivooeo:tf6, r=workingjubilee

`tests/ui`: A New Order [6/N]

> [!NOTE]
>
> Intermediate commits are intended to help review, but will be squashed prior to merge.

Some `tests/ui/` housekeeping, to trim down number of tests directly under `tests/ui/`. Part of rust-lang/rust#133895.

r? `````@jieyouxu`````

auxiliary tag means some changes in realted auxiliary file for test

Author: workingjubilee