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, 14 deletions

diff --git a/src/test/run-make/coverage/issue-83601.rs b/src/test/run-make/coverage/issue-83601.rs
deleted file mode 100644
index 0b72a81947c..00000000000
--- a/src/test/run-make/coverage/issue-83601.rs
+++ /dev/null
@@ -1,14 +0,0 @@
-// Shows that rust-lang/rust/83601 is resolved
-
-#[derive(Debug, PartialEq, Eq)]
-struct Foo(u32);
-
-fn main() {
-    let bar = Foo(1);
-    assert_eq!(bar, Foo(1));
-    let baz = Foo(0);
-    assert_ne!(baz, Foo(1));
-    println!("{:?}", Foo(1));
-    println!("{:?}", bar);
-    println!("{:?}", baz);
-}