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, 34 deletions

diff --git a/src/test/rustdoc/synthetic_auto/project.rs b/src/test/rustdoc/synthetic_auto/project.rs
deleted file mode 100644
index 558ff2add40..00000000000
--- a/src/test/rustdoc/synthetic_auto/project.rs
+++ /dev/null
@@ -1,34 +0,0 @@
-pub struct Inner<'a, T: 'a> {
-    field: &'a T,
-}
-
-trait MyTrait {
-    type MyItem;
-}
-
-trait OtherTrait {}
-
-unsafe impl<'a, T> Send for Inner<'a, T>
-where
-    'a: 'static,
-    T: MyTrait<MyItem = bool>,
-{
-}
-unsafe impl<'a, T> Sync for Inner<'a, T>
-where
-    'a: 'static,
-    T: MyTrait,
-    <T as MyTrait>::MyItem: OtherTrait,
-{
-}
-
-// @has project/struct.Foo.html
-// @has - '//*[@id="synthetic-implementations-list"]//*[@class="impl has-srclink"]//h3[@class="code-header"]' \
-// "impl<'c, K> Send for Foo<'c, K>where K: MyTrait<MyItem = bool>, 'c: 'static"
-//
-// @has - '//*[@id="synthetic-implementations-list"]//*[@class="impl has-srclink"]//h3[@class="code-header"]' \
-// "impl<'c, K> Sync for Foo<'c, K>where K: MyTrait, <K as MyTrait>::MyItem: OtherTrait, \
-// 'c: 'static,"
-pub struct Foo<'c, K: 'c> {
-    inner_field: Inner<'c, K>,
-}