syntax_data: {"ast_node_type":"other","tokens":[{"end":89,"kind":"keyword","start":0,"text":"//!"}]}
source_snippet: //! MIR locals which are live across a suspension point are moved to the coroutine struct
context_before: //! or `Poll::Ready(x)` and `Poll::Pending` respectively.
context_after: //! with references to them being updated with references to the coroutine struct.