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, 23 deletions

diff --git a/src/test/codegen/refs.rs b/src/test/codegen/refs.rs
deleted file mode 100644
index 0b796754d1d..00000000000
--- a/src/test/codegen/refs.rs
+++ /dev/null
@@ -1,23 +0,0 @@
-// compile-flags: -C no-prepopulate-passes -Zmir-opt-level=0
-
-#![crate_type = "lib"]
-
-// Hack to get the correct size for the length part in slices
-// CHECK: @helper([[USIZE:i[0-9]+]] %_1)
-#[no_mangle]
-pub fn helper(_: usize) {
-}
-
-// CHECK-LABEL: @ref_dst
-#[no_mangle]
-pub fn ref_dst(s: &[u8]) {
-    // We used to generate an extra alloca and memcpy to ref the dst, so check that we copy
-    // directly to the alloca for "x"
-// CHECK: [[X0:%[0-9]+]] = getelementptr inbounds { {{\[0 x i8\]\*|ptr}}, [[USIZE]] }, {{.*}}  %x, i32 0, i32 0
-// CHECK: store {{\[0 x i8\]\*|ptr}} %s.0, {{.*}} [[X0]]
-// CHECK: [[X1:%[0-9]+]] = getelementptr inbounds { {{\[0 x i8\]\*|ptr}}, [[USIZE]] }, {{.*}} %x, i32 0, i32 1
-// CHECK: store [[USIZE]] %s.1, {{.*}} [[X1]]
-
-    let x = &*s;
-    &x; // keep variable in an alloca
-}