syntax_data: {"ast_node_type":"other","tokens":[{"end":67,"kind":"keyword","start":0,"text":"//!"}]}
source_snippet: //! `CoroutineState::Complete(x)` and `CoroutineState::Yielded(y)`,
context_before: //! It also rewrites `return x` and `yield y` as setting a new coroutine state and returning
context_after: //! or `Poll::Ready(x)` and `Poll::Pending` respectively.