syntax_data: {"ast_node_type":"variable","tokens":[{"end":66,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:             let discriminant_ty = ty.ty.discriminant_ty(self.tcx);
context_before:         } else if ty.ty.is_enum() {
context_after:             self.map.register_place(discriminant_ty, place_index, TrackElem::Discriminant);