syntax_data: {"ast_node_type":"variable","tokens":[{"end":27,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:         let variant_index =
context_before:     for (suspension_point_idx, live_locals) in live_locals_at_suspension_points.iter().enumerate() {
context_after:             VariantIdx::from(CoroutineArgs::RESERVED_VARIANTS + suspension_point_idx);