syntax_data: {"ast_node_type":"variable","tokens":[{"end":77,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:             let mut unwind_indices = IndexVec::from_elem_n(unwind_target, 1);
context_before:             let unwind_target = self.diverge_cleanup_target(else_scope, span);
context_after:             for (drop_idx, drop_node) in drops.drop_nodes.iter_enumerated().skip(1) {