syntax_data: {"ast_node_type":"impl","tokens":[{"end":52,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// to call async drop poll from impl coroutine.
context_before:     /// `async_drop_in_place<T>::{closure}`, when T is a coroutine, is a proxy-impl
context_after:     pub fn find_async_drop_impl_coroutine<F: FnMut(Ty<'tcx>)>(