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/methods/method-call-err-msg.rs b/tests/ui/methods/method-call-err-msg.rs
new file mode 100644
index 00000000000..4807a956aa2
--- /dev/null
+++ b/tests/ui/methods/method-call-err-msg.rs
@@ -0,0 +1,22 @@
+// Test that parameter cardinality or missing method error gets span exactly.
+
+pub struct Foo;
+impl Foo {
+    fn zero(self) -> Foo { self }
+    fn one(self, _: isize) -> Foo { self }
+    fn two(self, _: isize, _: isize) -> Foo { self }
+    fn three<T>(self, _: T, _: T, _: T) -> Foo { self }
+}
+
+fn main() {
+    let x = Foo;
+    x.zero(0)   //~ ERROR this method takes 0 arguments but 1 argument was supplied
+     .one()     //~ ERROR this method takes 1 argument but 0 arguments were supplied
+     .two(0);   //~ ERROR this method takes 2 arguments but 1 argument was supplied
+
+    let y = Foo;
+    y.zero()
+     .take()    //~ ERROR not an iterator
+     .one(0);
+    y.three::<usize>(); //~ ERROR this method takes 3 arguments but 0 arguments were supplied
+}