review comment: move test

Author: estebank

src/test/ui/issues/issue-63398.rs renamed to src/test/ui/async-await/issues/non-async-enclosing-span.rs

@@ -4,8 +4,9 @@
 async fn do_the_thing() -> u8 {
     8
 }
-
-fn main() {
+// #63398: point at the enclosing scope and not the previously seen closure
+fn main() {  //~ NOTE this is not `async`
     let x = move || {};
     let y = do_the_thing().await; //~ ERROR `await` is only allowed inside `async` functions
+    //~^ NOTE only allowed inside `async` functions and blocks
 }

src/test/ui/issues/issue-63398.stderr renamed to src/test/ui/async-await/issues/non-async-enclosing-span.stderr

@@ -1,5 +1,5 @@
 error[E0728]: `await` is only allowed inside `async` functions and blocks
-  --> $DIR/issue-63398.rs:10:13
+  --> $DIR/non-async-enclosing-span.rs:10:13
    |
 LL | fn main() {
    |    ---- this is not `async`