Rollup merge of #35713 - sanxiyn:ui-test, r=nikomatsakis

Use UI test to test spans, instead of forced line break

There must be lots more, but these are what I could easily find.

src/test/ui/span/move-closure.rs

@@ -8,10 +8,9 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+// Regression test for issue #24986
 // Make sure that the span of a closure marked `move` begins at the `move` keyword.
 
 fn main() {
-    let x: () =
-    move //~ ERROR mismatched types
-    || ();
+    let x: () = move || ();
 }

src/test/ui/span/move-closure.stderr

@@ -0,0 +1,11 @@
+error[E0308]: mismatched types
+  --> $DIR/move-closure.rs:15:17
+   |
+15 |     let x: () = move || ();
+   |                 ^^^^^^^^^^ expected (), found closure
+   |
+   = note: expected type `()`
+   = note:    found type `[closure@$DIR/move-closure.rs:15:17: 15:27]`
+
+error: aborting due to previous error
+

src/test/ui/span/type-binding.rs

@@ -8,13 +8,11 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+// Regression test for issue #28158
 // Test the type binding span doesn't include >>
 
 use std::ops::Deref;
 
-fn homura<T: Deref<Trget=i32 //~ ERROR associated type
->>(_: T) { }
+fn homura<T: Deref<Trget = i32>>(_: T) {}
 
-
-fn main() {
-}
+fn main() {}

src/test/ui/span/type-binding.stderr

@@ -0,0 +1,8 @@
+error[E0220]: associated type `Trget` not found for `std::ops::Deref`
+  --> $DIR/type-binding.rs:16:20
+   |
+16 | fn homura<T: Deref<Trget = i32>>(_: T) {}
+   |                    ^^^^^^^^^^^
+
+error: aborting due to previous error
+