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, 26 insertions, 0 deletions

diff --git a/tests/ui/structs-enums/enum-discrim-range-overflow.rs b/tests/ui/structs-enums/enum-discrim-range-overflow.rs
new file mode 100644
index 00000000000..9c4c61e684b
--- /dev/null
+++ b/tests/ui/structs-enums/enum-discrim-range-overflow.rs
@@ -0,0 +1,26 @@
+// run-pass
+#![allow(overflowing_literals)]
+
+// pretty-expanded FIXME #23616
+
+pub enum E64 {
+    H64 = 0x7FFF_FFFF_FFFF_FFFF,
+    L64 = 0x8000_0000_0000_0000
+}
+pub enum E32 {
+    H32 = 0x7FFF_FFFF,
+    L32 = 0x8000_0000
+}
+
+pub fn f(e64: E64, e32: E32) -> (bool,bool) {
+    (match e64 {
+        E64::H64 => true,
+        E64::L64 => false
+    },
+     match e32 {
+        E32::H32 => true,
+        E32::L32 => false
+    })
+}
+
+pub fn main() { }