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, 41 deletions

diff --git a/src/test/ui/async-await/async-borrowck-escaping-block-error.stderr b/src/test/ui/async-await/async-borrowck-escaping-block-error.stderr
deleted file mode 100644
index 190c59e32eb..00000000000
--- a/src/test/ui/async-await/async-borrowck-escaping-block-error.stderr
+++ /dev/null
@@ -1,41 +0,0 @@
-error[E0373]: async block may outlive the current function, but it borrows `x`, which is owned by the current function
-  --> $DIR/async-borrowck-escaping-block-error.rs:6:14
-   |
-LL |     Box::new(async { x } )
-   |              ^^^^^^^^-^^
-   |              |       |
-   |              |       `x` is borrowed here
-   |              may outlive borrowed value `x`
-   |
-note: async block is returned here
-  --> $DIR/async-borrowck-escaping-block-error.rs:6:5
-   |
-LL |     Box::new(async { x } )
-   |     ^^^^^^^^^^^^^^^^^^^^^^
-help: to force the async block to take ownership of `x` (and any other referenced variables), use the `move` keyword
-   |
-LL |     Box::new(async move { x } )
-   |                    ++++
-
-error[E0373]: async block may outlive the current function, but it borrows `x`, which is owned by the current function
-  --> $DIR/async-borrowck-escaping-block-error.rs:11:5
-   |
-LL |     async { *x }
-   |     ^^^^^^^^--^^
-   |     |       |
-   |     |       `x` is borrowed here
-   |     may outlive borrowed value `x`
-   |
-note: async block is returned here
-  --> $DIR/async-borrowck-escaping-block-error.rs:11:5
-   |
-LL |     async { *x }
-   |     ^^^^^^^^^^^^
-help: to force the async block to take ownership of `x` (and any other referenced variables), use the `move` keyword
-   |
-LL |     async move { *x }
-   |           ++++
-
-error: aborting due to 2 previous errors
-
-For more information about this error, try `rustc --explain E0373`.