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, 34 insertions, 0 deletions

diff --git a/tests/rustdoc/macro_rules-matchers.rs b/tests/rustdoc/macro_rules-matchers.rs
new file mode 100644
index 00000000000..96f4126c7c2
--- /dev/null
+++ b/tests/rustdoc/macro_rules-matchers.rs
@@ -0,0 +1,34 @@
+// This is a regression test for issue #86208.
+// It is also a general test of macro_rules! display.
+
+#![crate_name = "foo"]
+
+// @has 'foo/macro.todo.html'
+// @has - '//span[@class="macro"]' 'macro_rules!'
+// @hasraw - ' todo {'
+
+// @hasraw - '{ () => { ... }; ($('
+// @has - '//span[@class="macro-nonterminal"]' '$'
+// @has - '//span[@class="macro-nonterminal"]' 'arg'
+// @hasraw - ':tt)+'
+// @hasraw - ') => { ... }; }'
+pub use std::todo;
+
+mod mod1 {
+    // @has 'foo/macro.macro1.html'
+    // @hasraw - 'macro_rules!'
+    // @hasraw - 'macro1'
+    // @hasraw - '{ () => { ... }; ($('
+    // @has - '//span[@class="macro-nonterminal"]' '$'
+    // @has - '//span[@class="macro-nonterminal"]' 'arg'
+    // @hasraw - ':'
+    // @hasraw - 'expr'
+    // @hasraw - '),'
+    // @hasraw - '+'
+    // @hasraw - ') => { ... }; }'
+    #[macro_export]
+    macro_rules! macro1 {
+        () => {};
+        ($($arg:expr),+) => { stringify!($($arg),+) };
+    }
+}