Update src/test/ui/async-await/in-trait/async-example.rs

Co-authored-by: Michael Goulet <michael@errs.io>

Author: bryangarza

src/test/ui/async-await/in-trait/async-example.rs

@@ -26,7 +26,7 @@ fn main() {
     let _ = x.bar();
     // Calling from async block in non-async context
     async {
-        let _ = x.foo();
-        let _ = x.bar();
+        let _: i32 = x.foo().await;
+        let _: i32 = x.bar().await;
     };
 }