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, 18 insertions, 0 deletions

diff --git a/tests/ui/expr-block.rs b/tests/ui/expr-block.rs
new file mode 100644
index 00000000000..ff87595c934
--- /dev/null
+++ b/tests/ui/expr-block.rs
@@ -0,0 +1,18 @@
+// run-pass
+#![allow(unused_braces)]
+#![allow(dead_code)]
+
+// Tests for standalone blocks as expressions
+
+fn test_basic() { let rs: bool = { true }; assert!((rs)); }
+
+struct RS { v1: isize, v2: isize }
+
+fn test_rec() { let rs = { RS {v1: 10, v2: 20} }; assert_eq!(rs.v2, 20); }
+
+fn test_filled_with_stuff() {
+    let rs = { let mut a = 0; while a < 10 { a += 1; } a };
+    assert_eq!(rs, 10);
+}
+
+pub fn main() { test_basic(); test_rec(); test_filled_with_stuff(); }