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, 19 insertions, 0 deletions

diff --git a/tests/codegen/pic-relocation-model.rs b/tests/codegen/pic-relocation-model.rs
new file mode 100644
index 00000000000..602a08067ba
--- /dev/null
+++ b/tests/codegen/pic-relocation-model.rs
@@ -0,0 +1,19 @@
+// compile-flags: -C relocation-model=pic
+
+#![crate_type = "rlib"]
+
+// CHECK: define i8 @call_foreign_fn()
+#[no_mangle]
+pub fn call_foreign_fn() -> u8 {
+    unsafe {
+        foreign_fn()
+    }
+}
+
+// (Allow but do not require `zeroext` here, because it is not worth effort to
+// spell out which targets have it and which ones do not; see rust#97800.)
+
+// CHECK: declare{{( zeroext)?}} i8 @foreign_fn()
+extern "C" {fn foreign_fn() -> u8;}
+
+// CHECK: !{i32 {{[78]}}, !"PIC Level", i32 2}