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, 36 deletions

diff --git a/src/test/rustdoc/same-crate-hidden-impl-parameter.rs b/src/test/rustdoc/same-crate-hidden-impl-parameter.rs
deleted file mode 100644
index d55393af859..00000000000
--- a/src/test/rustdoc/same-crate-hidden-impl-parameter.rs
+++ /dev/null
@@ -1,36 +0,0 @@
-// test for `doc(hidden)` with impl parameters in the same crate.
-#![crate_name = "foo"]
-
-#[doc(hidden)]
-pub enum HiddenType {}
-
-#[doc(hidden)]
-pub trait HiddenTrait {}
-
-pub enum MyLibType {}
-
-// @!has foo/enum.MyLibType.html '//*[@id="impl-From%3CHiddenType%3E"]' 'impl From<HiddenType> for MyLibType'
-impl From<HiddenType> for MyLibType {
-    fn from(it: HiddenType) -> MyLibType {
-        match it {}
-    }
-}
-
-pub struct T<T>(T);
-
-// @!has foo/enum.MyLibType.html '//*[@id="impl-From%3CT%3CT%3CT%3CT%3CHiddenType%3E%3E%3E%3E%3E"]' 'impl From<T<T<T<T<HiddenType>>>>> for MyLibType'
-impl From<T<T<T<T<HiddenType>>>>> for MyLibType {
-    fn from(it: T<T<T<T<HiddenType>>>>) -> MyLibType {
-        todo!()
-    }
-}
-
-// @!has foo/enum.MyLibType.html '//*[@id="impl-HiddenTrait"]' 'impl HiddenTrait for MyLibType'
-impl HiddenTrait for MyLibType {}
-
-// @!has foo/struct.T.html '//*[@id="impl-From%3CMyLibType%3E"]' 'impl From<MyLibType> for T<T<T<T<HiddenType>>>>'
-impl From<MyLibType> for T<T<T<T<HiddenType>>>> {
-    fn from(it: MyLibType) -> T<T<T<T<HiddenType>>>> {
-        match it {}
-    }
-}