Point at capture points for non-'static reference crossing a yield point

```
error[E0759]: `self` has an anonymous lifetime `'_` but it needs to satisfy a `'static` lifetime requirement
  --> $DIR/issue-72312.rs:10:24
   |
LL |     pub async fn start(&self) {
   |                        ^^^^^ this data with an anonymous lifetime `'_`...
...
LL |         require_static(async move {
   |         -------------- ...is required to live as long as `'static` here...
LL |             &self;
   |             ----- ...and is captured here
   |
note: `'static` lifetime requirement introduced by this trait bound
  --> $DIR/issue-72312.rs:2:22
   |
LL | fn require_static<T: 'static>(val: T) -> T {
   |                      ^^^^^^^

error: aborting due to previous error

For more information about this error, try `rustc --explain E0759`.
```

Fix #72312.

compiler/rustc_borrowck/src/diagnostics/bound_region_errors.rs

@@ -368,6 +368,7 @@ fn try_extract_error_from_fulfill_cx<'tcx>(
                 error_region,
                 cause.clone(),
                 placeholder_region,
+                vec![],
             ),
         ),
         (Some(error_region), _) => NiceRegionError::new(