syntax_data: {"ast_node_type":"variable","tokens":[{"end":93,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:                             let coroutine_span: Span = if frame_coroutine_kind.is_fn_like() {
context_before:                         } else {
context_after:                                 tcx.def_span(tcx.parent(frame_def_id))