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, 21 insertions, 0 deletions

diff --git a/tests/rustdoc/fn-bound.rs b/tests/rustdoc/fn-bound.rs
new file mode 100644
index 00000000000..9e060ff2026
--- /dev/null
+++ b/tests/rustdoc/fn-bound.rs
@@ -0,0 +1,21 @@
+// Regression test for #100143
+
+use std::iter::Peekable;
+
+pub struct Span<F: Fn(&i32)> {
+    inner: Peekable<ConditionalIterator<F>>,
+}
+
+pub struct ConditionalIterator<F> {
+    f: F,
+}
+
+
+// @has 'fn_bound/struct.ConditionalIterator.html' '//h3[@class="code-header"]' 'impl<F: Fn(&i32)> Iterator for ConditionalIterator<F>'
+impl<F: Fn(&i32)> Iterator for ConditionalIterator<F> {
+    type Item = ();
+
+    fn next(&mut self) -> Option<Self::Item> {
+        todo!()
+    }
+}