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, 37 insertions, 0 deletions

diff --git a/tests/ui/structs/struct-path-self.rs b/tests/ui/structs/struct-path-self.rs
new file mode 100644
index 00000000000..6e529c7ed2b
--- /dev/null
+++ b/tests/ui/structs/struct-path-self.rs
@@ -0,0 +1,37 @@
+struct S;
+
+trait Tr {
+    fn f() {
+        let s = Self {};
+        //~^ ERROR expected struct, variant or union type, found type parameter
+        let z = Self::<u8> {};
+        //~^ ERROR expected struct, variant or union type, found type parameter
+        //~| ERROR type arguments are not allowed on self type
+        match s {
+            Self { .. } => {}
+            //~^ ERROR expected struct, variant or union type, found type parameter
+        }
+    }
+}
+
+impl Tr for S {
+    fn f() {
+        let s = Self {}; // OK
+        let z = Self::<u8> {}; //~ ERROR type arguments are not allowed on self type
+        match s {
+            Self { .. } => {} // OK
+        }
+    }
+}
+
+impl S {
+    fn g() {
+        let s = Self {}; // OK
+        let z = Self::<u8> {}; //~ ERROR type arguments are not allowed on self type
+        match s {
+            Self { .. } => {} // OK
+        }
+    }
+}
+
+fn main() {}