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, 21 deletions

diff --git a/src/test/rustdoc/implementor-stable-version.rs b/src/test/rustdoc/implementor-stable-version.rs
deleted file mode 100644
index a1f3fd5a8c5..00000000000
--- a/src/test/rustdoc/implementor-stable-version.rs
+++ /dev/null
@@ -1,21 +0,0 @@
-#![stable(feature = "bar", since = "OLD 1.0")]
-#![crate_name = "foo"]
-
-#![feature(staged_api)]
-
-#[stable(feature = "bar", since = "OLD 1.0")]
-pub trait Bar {}
-
-#[stable(feature = "baz", since = "OLD 1.0")]
-pub trait Baz {}
-
-#[stable(feature = "baz", since = "OLD 1.0")]
-pub struct Foo;
-
-// @has foo/trait.Bar.html '//div[@id="implementors-list"]//span[@class="since"]' 'NEW 2.0'
-#[stable(feature = "foobar", since = "NEW 2.0")]
-impl Bar for Foo {}
-
-// @!has foo/trait.Baz.html '//div[@id="implementors-list"]//span[@class="since"]' 'OLD 1.0'
-#[stable(feature = "foobaz", since = "OLD 1.0")]
-impl Baz for Foo {}