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, 34 deletions

diff --git a/src/test/codegen/align-enum.rs b/src/test/codegen/align-enum.rs
deleted file mode 100644
index 70f09ace006..00000000000
--- a/src/test/codegen/align-enum.rs
+++ /dev/null
@@ -1,34 +0,0 @@
-// compile-flags: -C no-prepopulate-passes -Z mir-opt-level=0
-//
-
-#![crate_type = "lib"]
-
-#[repr(align(64))]
-pub enum Align64 {
-    A(u32),
-    B(u32),
-}
-// CHECK: %Align64 = type { i32, [15 x i32] }
-
-pub struct Nested64 {
-    a: u8,
-    b: Align64,
-    c: u16,
-}
-
-// CHECK-LABEL: @align64
-#[no_mangle]
-pub fn align64(a: u32) -> Align64 {
-// CHECK: %a64 = alloca %Align64, align 64
-// CHECK: call void @llvm.memcpy.{{.*}}({{i8\*|ptr}} align 64 %{{.*}}, {{i8\*|ptr}} align 64 %{{.*}}, i{{[0-9]+}} 64, i1 false)
-    let a64 = Align64::A(a);
-    a64
-}
-
-// CHECK-LABEL: @nested64
-#[no_mangle]
-pub fn nested64(a: u8, b: u32, c: u16) -> Nested64 {
-// CHECK: %n64 = alloca %Nested64, align 64
-    let n64 = Nested64 { a, b: Align64::B(b), c };
-    n64
-}