Auto merge of #106458 - albertlarsan68:move-tests, r=jyn514

Move src/test to the root

See MCP at rust-lang/compiler-team#573

There may be more changes needed.

The first commit is just the move of the files:
You can check that the first commit did not do anything else than renames by running
```
git diff --diff-filter=r -M100% <rust-lang remote>/master <first commit hash>
```
The output should be empty, because the filter excludes renames, and the match threshold for qualifying a rename is 100%.

The second one is mostly a "find and replace" of `src/test` to `tests` and whatever is needed to make CI pass.

What is left to do:
---

- [x] Move directory
- [ ] Change references to `src/test`
    - [x] Change references in-tree
    - [ ] Change references in submodules / out-of-tree docs
- [x] Make CI pass:
    - [x] Fix tidy
    - [x] Fix tests
    - [x] Bless tests if needed (shouldn't normally)
- [ ] Merge it !

1 files changed, 0 insertions, 16 deletions

diff --git a/src/test/ui/rfc-1445-restrict-constants-in-patterns/cant-hide-behind-indirect-struct-embedded.stderr b/src/test/ui/rfc-1445-restrict-constants-in-patterns/cant-hide-behind-indirect-struct-embedded.stderr
deleted file mode 100644
index ee92954a693..00000000000
--- a/src/test/ui/rfc-1445-restrict-constants-in-patterns/cant-hide-behind-indirect-struct-embedded.stderr
+++ /dev/null
@@ -1,16 +0,0 @@
-warning: to use a constant of type `NoDerive` in a pattern, `NoDerive` must be annotated with `#[derive(PartialEq, Eq)]`
-  --> $DIR/cant-hide-behind-indirect-struct-embedded.rs:24:9
-   |
-LL |         WRAP_INDIRECT_INLINE => { panic!("WRAP_INDIRECT_INLINE matched itself"); }
-   |         ^^^^^^^^^^^^^^^^^^^^
-   |
-   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
-   = note: for more information, see issue #62411 <https://github.com/rust-lang/rust/issues/62411>
-note: the lint level is defined here
-  --> $DIR/cant-hide-behind-indirect-struct-embedded.rs:7:9
-   |
-LL | #![warn(indirect_structural_match)]
-   |         ^^^^^^^^^^^^^^^^^^^^^^^^^
-
-warning: 1 warning emitted
-