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, 61 insertions, 0 deletions

diff --git a/tests/rustdoc/higher-ranked-trait-bounds.rs b/tests/rustdoc/higher-ranked-trait-bounds.rs
new file mode 100644
index 00000000000..3493ae6d2bb
--- /dev/null
+++ b/tests/rustdoc/higher-ranked-trait-bounds.rs
@@ -0,0 +1,61 @@
+#![crate_name = "foo"]
+
+// @has foo/trait.Trait.html
+pub trait Trait<'x> {}
+
+// @has foo/fn.test1.html
+// @has - '//pre' "pub fn test1<T>()where for<'a> &'a T: Iterator,"
+pub fn test1<T>()
+where
+    for<'a> &'a T: Iterator,
+{
+}
+
+// @has foo/fn.test2.html
+// @has - '//pre' "pub fn test2<T>()where for<'a, 'b> &'a T: Trait<'b>,"
+pub fn test2<T>()
+where
+    for<'a, 'b> &'a T: Trait<'b>,
+{
+}
+
+// @has foo/fn.test3.html
+// @has - '//pre' "pub fn test3<F>()where F: for<'a, 'b> Fn(&'a u8, &'b u8),"
+pub fn test3<F>()
+where
+    F: for<'a, 'b> Fn(&'a u8, &'b u8),
+{
+}
+
+// @has foo/struct.Foo.html
+pub struct Foo<'a> {
+    _x: &'a u8,
+    pub some_trait: &'a dyn for<'b> Trait<'b>,
+    pub some_func: for<'c> fn(val: &'c i32) -> i32,
+}
+
+// @has - '//span[@id="structfield.some_func"]' "some_func: for<'c> fn(val: &'c i32) -> i32"
+// @has - '//span[@id="structfield.some_trait"]' "some_trait: &'a dyn for<'b> Trait<'b>"
+
+impl<'a> Foo<'a> {
+    // @has - '//h4[@class="code-header"]' "pub fn bar<T>()where T: Trait<'a>,"
+    pub fn bar<T>()
+    where
+        T: Trait<'a>,
+    {
+    }
+}
+
+// @has foo/trait.B.html
+pub trait B<'x> {}
+
+// @has - '//h3[@class="code-header"]' "impl<'a> B<'a> for dyn for<'b> Trait<'b>"
+impl<'a> B<'a> for dyn for<'b> Trait<'b> {}
+
+// @has foo/struct.Bar.html
+// @has - '//span[@id="structfield.bar"]' "bar: &'a (dyn for<'b> Trait<'b> + Unpin)"
+// @has - '//span[@id="structfield.baz"]' "baz: &'a (dyn Unpin + for<'b> Trait<'b>)"
+pub struct Bar<'a> {
+    pub bar: &'a (dyn for<'b> Trait<'b> + Unpin),
+    pub baz: &'a (dyn Unpin + for<'b> Trait<'b>),
+}