syntax_data: {"ast_node_type":"other","tokens":[{"end":65,"kind":"keyword","start":0,"text":"*self.projections.entry((base,"}]}
source_snippet:         *self.projections.entry((base, elem)).or_insert_with(|| {
context_before:     fn register_place(&mut self, ty: Ty<'tcx>, base: PlaceIndex, elem: TrackElem) -> PlaceIndex {
context_after:             let next = self.places.push(PlaceInfo::new(ty, Some(elem)));