syntax_data: {"ast_node_type":"other","tokens":[{"end":50,"kind":"keyword","start":0,"text":"ty"}]}
source_snippet:             ty = ty.projection_ty(self.tcx, proj);
context_before:             let track_elem = proj.try_into().ok()?;
context_after:             place_index = self.map.register_place(ty.ty, place_index, track_elem);