syntax_data: {"ast_node_type":"variable","tokens":[{"end":62,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:                     let mut tmp = analysis.bottom_value(body);
context_before:                 if let Some(mut data) = analysis.get_switch_int_data(block, discr) {
context_after:                     for (value, target) in targets.iter() {