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, 23 insertions, 0 deletions

diff --git a/tests/ui/parser/trait-object-trait-parens.rs b/tests/ui/parser/trait-object-trait-parens.rs
new file mode 100644
index 00000000000..438034bc38a
--- /dev/null
+++ b/tests/ui/parser/trait-object-trait-parens.rs
@@ -0,0 +1,23 @@
+trait Trait<'a> {}
+
+trait Obj {}
+
+fn f<T: (Copy) + (?Sized) + (for<'a> Trait<'a>)>() {}
+
+fn main() {
+    let _: Box<(Obj) + (?Sized) + (for<'a> Trait<'a>)>;
+    //~^ ERROR `?Trait` is not permitted in trait object types
+    //~| ERROR only auto traits can be used as additional traits
+    //~| WARN trait objects without an explicit `dyn` are deprecated
+    //~| WARN this is accepted in the current edition
+    let _: Box<?Sized + (for<'a> Trait<'a>) + (Obj)>;
+    //~^ ERROR `?Trait` is not permitted in trait object types
+    //~| ERROR only auto traits can be used as additional traits
+    //~| WARN trait objects without an explicit `dyn` are deprecated
+    //~| WARN this is accepted in the current edition
+    let _: Box<for<'a> Trait<'a> + (Obj) + (?Sized)>;
+    //~^ ERROR `?Trait` is not permitted in trait object types
+    //~| ERROR only auto traits can be used as additional traits
+    //~| WARN trait objects without an explicit `dyn` are deprecated
+    //~| WARN this is accepted in the current edition
+}