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, 32 insertions, 0 deletions

diff --git a/tests/ui/rustdoc/check-doc-alias-attr-location.rs b/tests/ui/rustdoc/check-doc-alias-attr-location.rs
new file mode 100644
index 00000000000..10609e5d8f4
--- /dev/null
+++ b/tests/ui/rustdoc/check-doc-alias-attr-location.rs
@@ -0,0 +1,32 @@
+#![crate_type = "lib"]
+
+pub struct Bar;
+pub trait Foo {
+    type X;
+    fn foo(x: u32) -> Self::X;
+}
+
+#[doc(alias = "foo")] //~ ERROR
+extern "C" {}
+
+#[doc(alias = "bar")] //~ ERROR
+impl Bar {
+    #[doc(alias = "const")]
+    const A: u32 = 0;
+}
+
+#[doc(alias = "foobar")] //~ ERROR
+impl Foo for Bar {
+    #[doc(alias = "assoc")] //~ ERROR
+    type X = i32;
+    fn foo(#[doc(alias = "qux")] _x: u32) -> Self::X {
+        //~^ ERROR
+        #[doc(alias = "stmt")] //~ ERROR
+        let x = 0;
+        #[doc(alias = "expr")] //~ ERROR
+        match x {
+            #[doc(alias = "arm")] //~ ERROR
+            _ => 0
+        }
+    }
+}