syntax_data: {"ast_node_type":"other","tokens":[{"end":73,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:     // not a coroutine body itself; it just has its drop built out of it.
context_before:     // Take the coroutine info out of the body, since the drop shim is
context_after:     let _ = body.coroutine.take();