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, 31 insertions, 0 deletions

diff --git a/tests/ui/attributes/class-attributes-2.rs b/tests/ui/attributes/class-attributes-2.rs
new file mode 100644
index 00000000000..6aba6b89427
--- /dev/null
+++ b/tests/ui/attributes/class-attributes-2.rs
@@ -0,0 +1,31 @@
+// build-pass (FIXME(62277): could be check-pass?)
+
+#![feature(rustc_attrs)]
+
+struct Cat {
+    name: String,
+}
+
+impl Drop for Cat {
+    #[rustc_dummy]
+    /**
+       Actually, cats don't always land on their feet when you drop them.
+    */
+    fn drop(&mut self) {
+        println!("{} landed on hir feet", self.name);
+    }
+}
+
+#[rustc_dummy]
+/**
+Maybe it should technically be a kitten_maker.
+*/
+fn cat(name: String) -> Cat {
+    Cat {
+        name: name
+    }
+}
+
+fn main() {
+    let _kitty = cat("Spotty".to_string());
+}