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, 35 insertions, 0 deletions

diff --git a/tests/codegen/virtual-function-elimination-32bit.rs b/tests/codegen/virtual-function-elimination-32bit.rs
new file mode 100644
index 00000000000..6f963363a99
--- /dev/null
+++ b/tests/codegen/virtual-function-elimination-32bit.rs
@@ -0,0 +1,35 @@
+// compile-flags: -Zvirtual-function-elimination -Clto -O -Csymbol-mangling-version=v0
+// ignore-64bit
+
+// CHECK: @vtable.0 = {{.*}}, !type ![[TYPE0:[0-9]+]], !vcall_visibility ![[VCALL_VIS0:[0-9]+]]
+
+#![crate_type = "lib"]
+
+trait T {
+    // CHECK-LABEL: ; <virtual_function_elimination_32bit::S as virtual_function_elimination_32bit::T>::used
+    fn used(&self) -> i32 {
+        1
+    }
+    // CHECK-LABEL-NOT: {{.*}}::unused
+    fn unused(&self) -> i32 {
+        2
+    }
+}
+
+#[derive(Copy, Clone)]
+struct S;
+
+impl T for S {}
+
+fn taking_t(t: &dyn T) -> i32 {
+    // CHECK: @llvm.type.checked.load({{.*}}, i32 12, metadata !"[[MANGLED_TYPE0:[0-9a-zA-Z_]+]]")
+    t.used()
+}
+
+pub fn main() {
+    let s = S;
+    taking_t(&s);
+}
+
+// CHECK: ![[TYPE0]] = !{i32 0, !"[[MANGLED_TYPE0]]"}
+// CHECK: ![[VCALL_VIS0]] = !{i64 2}