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, 24 insertions, 0 deletions

diff --git a/tests/rustdoc/description.rs b/tests/rustdoc/description.rs
new file mode 100644
index 00000000000..05ec4282208
--- /dev/null
+++ b/tests/rustdoc/description.rs
@@ -0,0 +1,24 @@
+#![crate_name = "foo"]
+//! # Description test crate
+//!
+//! This is the contents of the test crate docstring.
+//! It should not show up in the description.
+
+// @has 'foo/index.html' '//meta[@name="description"]/@content' \
+//   'Description test crate'
+// @!has - '//meta[@name="description"]/@content' 'should not show up'
+
+// @has 'foo/foo_mod/index.html' '//meta[@name="description"]/@content' \
+//   'First paragraph description.'
+// @!has - '//meta[@name="description"]/@content' 'Second paragraph'
+/// First paragraph description.
+///
+/// Second paragraph should not show up.
+pub mod foo_mod {
+    pub struct __Thing {}
+}
+
+// @has 'foo/fn.foo_fn.html' '//meta[@name="description"]/@content' \
+//   'Only paragraph.'
+/// Only paragraph.
+pub fn foo_fn() {}