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, 22 insertions, 0 deletions

diff --git a/tests/rustdoc/struct-field.rs b/tests/rustdoc/struct-field.rs
new file mode 100644
index 00000000000..998683bdde7
--- /dev/null
+++ b/tests/rustdoc/struct-field.rs
@@ -0,0 +1,22 @@
+#![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,
+}