syntax_data: {"ast_node_type":"other","tokens":[{"end":36,"kind":"keyword","start":0,"text":"expr_id"}]}
source_snippet:             expr_id = enclosing_not;
context_before:         if let Some(&NotInfo { enclosing_not, is_flipped }) = coverage_info.nots.get(&expr_id) {
context_after:             if is_flipped {