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, 22 insertions, 0 deletions

diff --git a/tests/ui/try-trait/try-operator-on-main.rs b/tests/ui/try-trait/try-operator-on-main.rs
new file mode 100644
index 00000000000..3b364f7e7d3
--- /dev/null
+++ b/tests/ui/try-trait/try-operator-on-main.rs
@@ -0,0 +1,22 @@
+#![feature(try_trait_v2)]
+
+use std::ops::Try;
+
+fn main() {
+    // error for a `Try` type on a non-`Try` fn
+    std::fs::File::open("foo")?; //~ ERROR the `?` operator can only
+
+    // a non-`Try` type on a non-`Try` fn
+    ()?; //~ ERROR the `?` operator can only be applied to
+    //~^ ERROR the `?` operator can only be used in a function that
+
+    // an unrelated use of `Try`
+    try_trait_generic::<()>(); //~ ERROR the trait bound
+}
+
+fn try_trait_generic<T: Try>() -> T {
+    // and a non-`Try` object on a `Try` fn.
+    ()?; //~ ERROR the `?` operator can only be applied to values that implement `Try`
+
+    loop {}
+}