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, 22 deletions

diff --git a/src/test/rustdoc/struct-field.rs b/src/test/rustdoc/struct-field.rs
deleted file mode 100644
index 998683bdde7..00000000000
--- a/src/test/rustdoc/struct-field.rs
+++ /dev/null
@@ -1,22 +0,0 @@
-#![crate_name = "foo"]
-
-
-// @has foo/index.html '//*[@class="docblock"]/p/a[@href="struct.Foo.html#structfield.bar"]' 'Foo::bar'
-// @has foo/index.html '//*[@class="docblock"]/p/a[@href="union.Bar.html#structfield.foo"]' 'Bar::foo'
-// @has foo/index.html '//*[@class="docblock"]/p/a[@href="enum.Uniooon.html#variant.X"]' 'Uniooon::X'
-
-//! Test with [Foo::bar], [Bar::foo], [Uniooon::X]
-
-pub struct Foo {
-    pub bar: usize,
-}
-
-pub union Bar {
-    pub foo: u32,
-}
-
-pub enum Uniooon {
-    F,
-    X,
-    Y,
-}