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 !

5 files changed, 118 insertions, 0 deletions

diff --git a/tests/ui/annotate-snippet/auxiliary/multispan.rs b/tests/ui/annotate-snippet/auxiliary/multispan.rs
new file mode 100644
index 00000000000..c05d15643db
--- /dev/null
+++ b/tests/ui/annotate-snippet/auxiliary/multispan.rs
@@ -0,0 +1,37 @@
+// force-host
+// no-prefer-dynamic
+
+#![crate_type = "proc-macro"]
+#![feature(proc_macro_diagnostic, proc_macro_span, proc_macro_def_site)]
+
+extern crate proc_macro;
+
+use proc_macro::{TokenStream, TokenTree, Span, Diagnostic};
+
+fn parse(input: TokenStream) -> Result<(), Diagnostic> {
+    let mut hi_spans = vec![];
+    for tree in input {
+        if let TokenTree::Ident(ref ident) = tree {
+            if ident.to_string() == "hi" {
+                hi_spans.push(ident.span());
+            }
+        }
+    }
+
+    if !hi_spans.is_empty() {
+        return Err(Span::def_site()
+                       .error("hello to you, too!")
+                       .span_note(hi_spans, "found these 'hi's"));
+    }
+
+    Ok(())
+}
+
+#[proc_macro]
+pub fn hello(input: TokenStream) -> TokenStream {
+    if let Err(diag) = parse(input) {
+        diag.emit();
+    }
+
+    TokenStream::new()
+}
diff --git a/tests/ui/annotate-snippet/missing-type.rs b/tests/ui/annotate-snippet/missing-type.rs
new file mode 100644
index 00000000000..b0d8b5fbaf2
--- /dev/null
+++ b/tests/ui/annotate-snippet/missing-type.rs
@@ -0,0 +1,5 @@
+// compile-flags: --error-format human-annotate-rs -Z unstable-options
+
+pub fn main() {
+    let x: Iter; //~ ERROR cannot find type `Iter` in this scope
+}
diff --git a/tests/ui/annotate-snippet/missing-type.stderr b/tests/ui/annotate-snippet/missing-type.stderr
new file mode 100644
index 00000000000..c16f022a77f
--- /dev/null
+++ b/tests/ui/annotate-snippet/missing-type.stderr
@@ -0,0 +1,6 @@
+error[E0412]: cannot find type `Iter` in this scope
+  --> $DIR/missing-type.rs:4:12
+   |
+LL |     let x: Iter;
+   |            ^^^^ not found in this scope
+   |
diff --git a/tests/ui/annotate-snippet/multispan.rs b/tests/ui/annotate-snippet/multispan.rs
new file mode 100644
index 00000000000..69d7e1a9d11
--- /dev/null
+++ b/tests/ui/annotate-snippet/multispan.rs
@@ -0,0 +1,28 @@
+// aux-build:multispan.rs
+// compile-flags: --error-format human-annotate-rs -Z unstable-options
+
+#![feature(proc_macro_hygiene)]
+
+extern crate multispan;
+
+use multispan::hello;
+
+fn main() {
+    // This one emits no error.
+    hello!();
+
+    // Exactly one 'hi'.
+    hello!(hi); //~ ERROR hello to you, too!
+
+    // Now two, back to back.
+    hello!(hi hi); //~ ERROR hello to you, too!
+
+    // Now three, back to back.
+    hello!(hi hi hi); //~ ERROR hello to you, too!
+
+    // Now several, with spacing.
+    hello!(hi hey hi yo hi beep beep hi hi); //~ ERROR hello to you, too!
+    hello!(hi there, hi how are you? hi... hi.); //~ ERROR hello to you, too!
+    hello!(whoah. hi di hi di ho); //~ ERROR hello to you, too!
+    hello!(hi good hi and good bye); //~ ERROR hello to you, too!
+}
diff --git a/tests/ui/annotate-snippet/multispan.stderr b/tests/ui/annotate-snippet/multispan.stderr
new file mode 100644
index 00000000000..baed54c59a4
--- /dev/null
+++ b/tests/ui/annotate-snippet/multispan.stderr
@@ -0,0 +1,42 @@
+error: hello to you, too!
+  --> $DIR/multispan.rs:15:5
+   |
+LL |     hello!(hi);
+   |     ^^^^^^^^^^
+   |
+error: hello to you, too!
+  --> $DIR/multispan.rs:18:5
+   |
+LL |     hello!(hi hi);
+   |     ^^^^^^^^^^^^^
+   |
+error: hello to you, too!
+  --> $DIR/multispan.rs:21:5
+   |
+LL |     hello!(hi hi hi);
+   |     ^^^^^^^^^^^^^^^^
+   |
+error: hello to you, too!
+  --> $DIR/multispan.rs:24:5
+   |
+LL |     hello!(hi hey hi yo hi beep beep hi hi);
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+error: hello to you, too!
+  --> $DIR/multispan.rs:25:5
+   |
+LL |     hello!(hi there, hi how are you? hi... hi.);
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+error: hello to you, too!
+  --> $DIR/multispan.rs:26:5
+   |
+LL |     hello!(whoah. hi di hi di ho);
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+error: hello to you, too!
+  --> $DIR/multispan.rs:27:5
+   |
+LL |     hello!(hi good hi and good bye);
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |