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, 56 insertions, 0 deletions

diff --git a/tests/rustdoc/sidebar-items.rs b/tests/rustdoc/sidebar-items.rs
new file mode 100644
index 00000000000..6f7afa59bdd
--- /dev/null
+++ b/tests/rustdoc/sidebar-items.rs
@@ -0,0 +1,56 @@
+#![feature(associated_type_defaults)]
+#![crate_name = "foo"]
+
+// @has foo/trait.Foo.html
+// @has - '//div[@class="sidebar-elems"]//h3/a[@href="#required-methods"]' 'Required Methods'
+// @has - '//*[@class="sidebar-elems"]//section//a' 'bar'
+// @has - '//div[@class="sidebar-elems"]//h3/a[@href="#provided-methods"]' 'Provided Methods'
+// @has - '//*[@class="sidebar-elems"]//section//a' 'foo'
+// @has - '//div[@class="sidebar-elems"]//h3/a[@href="#required-associated-consts"]' 'Required Associated Constants'
+// @has - '//*[@class="sidebar-elems"]//section//a' 'FOO'
+// @has - '//div[@class="sidebar-elems"]//h3/a[@href="#provided-associated-consts"]' 'Provided Associated Constants'
+// @has - '//*[@class="sidebar-elems"]//section//a' 'BAR'
+// @has - '//div[@class="sidebar-elems"]//h3/a[@href="#required-associated-types"]' 'Required Associated Types'
+// @has - '//*[@class="sidebar-elems"]//section//a' 'Output'
+// @has - '//div[@class="sidebar-elems"]//h3/a[@href="#provided-associated-types"]' 'Provided Associated Types'
+// @has - '//*[@class="sidebar-elems"]//section//a' 'Extra'
+pub trait Foo {
+    const FOO: usize;
+    const BAR: u32 = 0;
+    type Extra: Copy = ();
+    type Output: ?Sized;
+
+    fn foo() {}
+    fn bar() -> Self::Output;
+}
+
+// @has foo/struct.Bar.html
+// @has - '//div[@class="sidebar-elems"]//h3/a[@href="#fields"]' 'Fields'
+// @has - '//*[@class="sidebar-elems"]//section//a[@href="#structfield.f"]' 'f'
+// @has - '//*[@class="sidebar-elems"]//section//a[@href="#structfield.u"]' 'u'
+// @!has - '//*[@class="sidebar-elems"]//section//a' 'waza'
+pub struct Bar {
+    pub f: u32,
+    pub u: u32,
+    waza: u32,
+}
+
+// @has foo/enum.En.html
+// @has - '//div[@class="sidebar-elems"]//h3/a[@href="#variants"]' 'Variants'
+// @has - '//*[@class="sidebar-elems"]//section//a' 'Foo'
+// @has - '//*[@class="sidebar-elems"]//section//a' 'Bar'
+pub enum En {
+    Foo,
+    Bar,
+}
+
+// @has foo/union.MyUnion.html
+// @has - '//div[@class="sidebar-elems"]//h3/a[@href="#fields"]' 'Fields'
+// @has - '//*[@class="sidebar-elems"]//section//a[@href="#structfield.f1"]' 'f1'
+// @has - '//*[@class="sidebar-elems"]//section//a[@href="#structfield.f2"]' 'f2'
+// @!has - '//*[@class="sidebar-elems"]//section//a' 'waza'
+pub union MyUnion {
+    pub f1: u32,
+    pub f2: f32,
+    waza: u32,
+}