{"ast_node_type":"function","tokens":[{"end":77,"kind":"keyword","start":0,"text":"fn"}]}
    fn visit_statement(&mut self, statement: &Statement<'tcx>, _: Location) {
impl<'tcx> Visitor<'tcx> for CostChecker<'_, 'tcx> {
        // Don't count StorageLive/StorageDead in the inlining cost.