syntax_data: {"ast_node_type":"variable","tokens":[{"end":42,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:                     let l = Local::new(i);
context_before:                 for i in 0..self.always_live_locals.domain_size() {
context_after:                     let needs_storage_dead = storage_liveness.contains(l)