Add a test

Author: compiler-errors

tests/ui/async-await/recursive-async-auto-trait-overflow.rs

@@ -0,0 +1,14 @@
+// Regression test for <https://github.com/rust-lang/rust/issues/145151>.
+
+//@ edition: 2024
+//@ check-pass
+
+async fn process<'a>() {
+    Box::pin(process()).await;
+}
+
+fn require_send(_: impl Send) {}
+
+fn main() {
+    require_send(process());
+}