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, 27 deletions

diff --git a/src/test/rustdoc/markdown-summaries.rs b/src/test/rustdoc/markdown-summaries.rs
deleted file mode 100644
index 31e7072b5ce..00000000000
--- a/src/test/rustdoc/markdown-summaries.rs
+++ /dev/null
@@ -1,27 +0,0 @@
-#![crate_type = "lib"]
-#![crate_name = "summaries"]
-
-//! This *summary* has a [link] and `code`.
-//!
-//! This is the second paragraph.
-//!
-//! [link]: https://example.com
-
-// @hasraw search-index.js 'This <em>summary</em> has a link and <code>code</code>.'
-// @!hasraw - 'second paragraph'
-
-/// This `code` will be rendered in a code tag.
-///
-/// This text should not be rendered.
-pub struct Sidebar;
-
-// @hasraw search-index.js 'This <code>code</code> will be rendered in a code tag.'
-// @hasraw summaries/sidebar-items.js 'This `code` will be rendered in a code tag.'
-// @!hasraw - 'text should not be rendered'
-
-/// ```text
-/// this block should not be rendered
-/// ```
-pub struct Sidebar2;
-
-// @!hasraw summaries/sidebar-items.js 'block should not be rendered'