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, 0 insertions, 24 deletions

diff --git a/src/test/ui/macros/syntax-extension-cfg.rs b/src/test/ui/macros/syntax-extension-cfg.rs
deleted file mode 100644
index 2e929fc1dfa..00000000000
--- a/src/test/ui/macros/syntax-extension-cfg.rs
+++ /dev/null
@@ -1,24 +0,0 @@
-// run-pass
-// compile-flags: --cfg foo --cfg qux="foo"
-
-
-pub fn main() {
-    // check
-    if ! cfg!(foo) { panic!() }
-    if   cfg!(not(foo)) { panic!() }
-
-    if ! cfg!(qux="foo") { panic!() }
-    if   cfg!(not(qux="foo")) { panic!() }
-
-    if ! cfg!(all(foo, qux="foo")) { panic!() }
-    if   cfg!(not(all(foo, qux="foo"))) { panic!() }
-    if   cfg!(all(not(all(foo, qux="foo")))) { panic!() }
-
-    if cfg!(not_a_cfg) { panic!() }
-    if cfg!(all(not_a_cfg, foo, qux="foo")) { panic!() }
-    if cfg!(all(not_a_cfg, foo, qux="foo")) { panic!() }
-    if ! cfg!(any(not_a_cfg, foo)) { panic!() }
-
-    if ! cfg!(not(not_a_cfg)) { panic!() }
-    if ! cfg!(all(not(not_a_cfg), foo, qux="foo")) { panic!() }
-}