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, 32 deletions

diff --git a/src/test/rustdoc/doc-cfg-hide.rs b/src/test/rustdoc/doc-cfg-hide.rs
deleted file mode 100644
index 636957fe998..00000000000
--- a/src/test/rustdoc/doc-cfg-hide.rs
+++ /dev/null
@@ -1,32 +0,0 @@
-#![crate_name = "oud"]
-#![feature(doc_auto_cfg, doc_cfg, doc_cfg_hide)]
-
-#![doc(cfg_hide(feature = "solecism"))]
-
-// @has 'oud/struct.Solecism.html'
-// @count   - '//*[@class="stab portability"]' 0
-// compile-flags:--cfg feature="solecism"
-#[cfg(feature = "solecism")]
-pub struct Solecism;
-
-// @has 'oud/struct.Scribacious.html'
-// @count   - '//*[@class="stab portability"]' 1
-// @matches - '//*[@class="stab portability"]' 'crate feature solecism'
-#[cfg(feature = "solecism")]
-#[doc(cfg(feature = "solecism"))]
-pub struct Scribacious;
-
-// @has 'oud/struct.Hyperdulia.html'
-// @count   - '//*[@class="stab portability"]' 1
-// @matches - '//*[@class="stab portability"]' 'crate feature hyperdulia'
-// compile-flags:--cfg feature="hyperdulia"
-#[cfg(feature = "solecism")]
-#[cfg(feature = "hyperdulia")]
-pub struct Hyperdulia;
-
-// @has 'oud/struct.Oystercatcher.html'
-// @count   - '//*[@class="stab portability"]' 1
-// @matches - '//*[@class="stab portability"]' 'crate feature oystercatcher only'
-// compile-flags:--cfg feature="oystercatcher"
-#[cfg(all(feature = "solecism", feature = "oystercatcher"))]
-pub struct Oystercatcher;