Auto merge of #89345 - jackh726:89333, r=estebank

Don't lose binders when printing trait bound suggestion

Fixes #89333

src/test/ui/suggestions/issue-89333.rs

@@ -0,0 +1,11 @@
+// check-fail
+// Ensure we don't error when emitting trait bound not satisfied when self type
+// has late bound var
+
+fn main() {
+    test(&|| 0); //~ ERROR the trait bound
+}
+
+trait Trait {}
+
+fn test<T>(arg: &impl Fn() -> T) where for<'a> &'a T: Trait {}

src/test/ui/suggestions/issue-89333.stderr

@@ -0,0 +1,15 @@
+error[E0277]: the trait bound `for<'a> &'a _: Trait` is not satisfied
+  --> $DIR/issue-89333.rs:6:5
+   |
+LL |     test(&|| 0);
+   |     ^^^^ the trait `for<'a> Trait` is not implemented for `&'a _`
+   |
+note: required by a bound in `test`
+  --> $DIR/issue-89333.rs:11:55
+   |
+LL | fn test<T>(arg: &impl Fn() -> T) where for<'a> &'a T: Trait {}
+   |                                                       ^^^^^ required by this bound in `test`
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0277`.