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, 12 deletions

diff --git a/src/test/ui/limits/huge-array-simple-32.rs b/src/test/ui/limits/huge-array-simple-32.rs
deleted file mode 100644
index 2290e3d5e76..00000000000
--- a/src/test/ui/limits/huge-array-simple-32.rs
+++ /dev/null
@@ -1,12 +0,0 @@
-// ignore-64bit
-// build-fail
-
-// FIXME https://github.com/rust-lang/rust/issues/59774
-// normalize-stderr-test "thread.*panicked.*Metadata module not compiled.*\n" -> ""
-// normalize-stderr-test "note:.*RUST_BACKTRACE=1.*\n" -> ""
-#![allow(arithmetic_overflow)]
-
-fn main() {
-    let _fat: [u8; (1<<31)+(1<<15)] = //~ ERROR too big for the current architecture
-        [0; (1u32<<31) as usize +(1u32<<15) as usize];
-}