{"ast_node_type":"variable","tokens":[{"end":68,"kind":"keyword","start":0,"text":"let"}]}
        let point = self.location_map.point_from_location(location);
    pub(crate) fn add_location(&mut self, region: RegionVid, location: Location) {
        debug!("LivenessValues::add_location(region={:?}, location={:?})", region, location);