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, 32 insertions, 0 deletions

diff --git a/tests/ui/structs-enums/expr-if-struct.rs b/tests/ui/structs-enums/expr-if-struct.rs
new file mode 100644
index 00000000000..e62d47c6f5d
--- /dev/null
+++ b/tests/ui/structs-enums/expr-if-struct.rs
@@ -0,0 +1,32 @@
+// run-pass
+#![allow(non_camel_case_types)]
+
+
+
+
+// Tests for if as expressions returning nominal types
+
+#[derive(Copy, Clone)]
+struct I { i: isize }
+
+fn test_rec() {
+    let rs = if true { I {i: 100} } else { I {i: 101} };
+    assert_eq!(rs.i, 100);
+}
+
+#[derive(Copy, Clone, Debug)]
+enum mood { happy, sad, }
+
+impl PartialEq for mood {
+    fn eq(&self, other: &mood) -> bool {
+        ((*self) as usize) == ((*other) as usize)
+    }
+    fn ne(&self, other: &mood) -> bool { !(*self).eq(other) }
+}
+
+fn test_tag() {
+    let rs = if true { mood::happy } else { mood::sad };
+    assert_eq!(rs, mood::happy);
+}
+
+pub fn main() { test_rec(); test_tag(); }