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, 0 insertions, 22 deletions

diff --git a/src/test/ui/suggestions/args-instead-of-tuple-errors.rs b/src/test/ui/suggestions/args-instead-of-tuple-errors.rs
deleted file mode 100644
index f5931a1baea..00000000000
--- a/src/test/ui/suggestions/args-instead-of-tuple-errors.rs
+++ /dev/null
@@ -1,22 +0,0 @@
-// Ensure we don't suggest tuple-wrapping when we'd end up with a type error
-
-fn main() {
-    // we shouldn't suggest to fix these - `2` isn't a `bool`
-
-    let _: Option<(i32, bool)> = Some(1, 2);
-    //~^ ERROR this enum variant takes 1 argument but 2 arguments were supplied
-    int_bool(1, 2);
-    //~^ ERROR function takes 1 argument but 2 arguments were supplied
-
-    let _: Option<(i8,)> = Some();
-    //~^ ERROR this enum variant takes 1 argument but 0 arguments were supplied
-
-    let _: Option<(i32,)> = Some(5_usize);
-    //~^ ERROR mismatched types
-
-    let _: Option<(i32,)> = Some((5_usize));
-    //~^ ERROR mismatched types
-}
-
-fn int_bool(_: (i32, bool)) {
-}