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, 47 deletions

diff --git a/src/test/codegen/target-feature-overrides.rs b/src/test/codegen/target-feature-overrides.rs
deleted file mode 100644
index 4be77e36e76..00000000000
--- a/src/test/codegen/target-feature-overrides.rs
+++ /dev/null
@@ -1,47 +0,0 @@
-// revisions: COMPAT INCOMPAT
-// needs-llvm-components: x86
-// compile-flags: --target=x86_64-unknown-linux-gnu -Copt-level=3
-// [COMPAT] compile-flags: -Ctarget-feature=+avx2,+avx
-// [INCOMPAT] compile-flags: -Ctarget-feature=-avx2,-avx
-
-// See also src/test/assembly/target-feature-multiple.rs
-#![feature(no_core, lang_items)]
-#![crate_type = "lib"]
-#![no_core]
-
-
-#[lang = "sized"]
-trait Sized {}
-#[lang = "copy"]
-trait Copy {}
-
-extern "C" {
-    fn peach() -> u32;
-}
-
-#[inline]
-#[target_feature(enable = "avx")]
-#[no_mangle]
-pub unsafe fn apple() -> u32 {
-// CHECK-LABEL: @apple()
-// CHECK-SAME: [[APPLEATTRS:#[0-9]+]] {
-// CHECK: {{.*}}call{{.*}}@peach
-    peach()
-}
-
-// target features same as global
-#[no_mangle]
-pub unsafe fn banana() -> u32 {
-// CHECK-LABEL: @banana()
-// CHECK-SAME: [[BANANAATTRS:#[0-9]+]] {
-// COMPAT: {{.*}}call{{.*}}@peach
-// INCOMPAT: {{.*}}call{{.*}}@apple
-    apple() // Compatible for inline in COMPAT revision and can't be inlined in INCOMPAT
-}
-
-// CHECK: attributes [[APPLEATTRS]]
-// COMPAT-SAME: "target-features"="+avx2,+avx,+avx"
-// INCOMPAT-SAME: "target-features"="-avx2,-avx,+avx"
-// CHECK: attributes [[BANANAATTRS]]
-// COMPAT-SAME: "target-features"="+avx2,+avx"
-// INCOMPAT-SAME: "target-features"="-avx2,-avx"