{"ast_node_type":"other","tokens":[{"end":88,"kind":"keyword","start":0,"text":"//"}]}
        // to `ByRef` for the `async {}` block internal to async fns/closure. This means
        // As noted in `lower_coroutine_body_with_moved_arguments`, we default the capture mode
        // that we would *not* be moving all of the parameters into the async block in all cases.