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/macros/macro-input-future-proofing.rs b/tests/ui/macros/macro-input-future-proofing.rs
new file mode 100644
index 00000000000..9a5bdb08a8e
--- /dev/null
+++ b/tests/ui/macros/macro-input-future-proofing.rs
@@ -0,0 +1,23 @@
+#![allow(unused_macros)]
+
+macro_rules! errors_everywhere {
+    ($ty:ty <) => (); //~ ERROR `$ty:ty` is followed by `<`, which is not allowed for `ty`
+    ($ty:ty < foo ,) => (); //~ ERROR `$ty:ty` is followed by `<`, which is not allowed for `ty`
+    ($ty:ty , ) => ();
+    ( ( $ty:ty ) ) => ();
+    ( { $ty:ty } ) => ();
+    ( [ $ty:ty ] ) => ();
+    ($bl:block < ) => ();
+    ($pa:pat >) => (); //~ ERROR `$pa:pat` is followed by `>`, which is not allowed for `pat`
+    ($pa:pat , ) => ();
+    ($pa:pat $pb:pat $ty:ty ,) => ();
+    //~^ ERROR `$pa:pat` is followed by `$pb:pat`, which is not allowed
+    //~^^ ERROR `$pb:pat` is followed by `$ty:ty`, which is not allowed
+    ($($ty:ty)* -) => (); //~ ERROR `$ty:ty` is followed by `-`
+    ($($a:ty, $b:ty)* -) => (); //~ ERROR `$b:ty` is followed by `-`
+    ($($ty:ty)-+) => (); //~ ERROR `$ty:ty` is followed by `-`, which is not allowed for `ty`
+    ( $($a:expr)* $($b:tt)* ) => { };
+    //~^ ERROR `$a:expr` is followed by `$b:tt`, which is not allowed for `expr` fragments
+}
+
+fn main() { }