{"ast_node_type":"other","tokens":[{"end":71,"kind":"keyword","start":0,"text":"trace!(\"FindReferenceVisitor"}]}
                trace!("FindReferenceVisitor considering ty={:?}", ty);
            fn visit_ty(&mut self, ty: &'ra Ty) {
                if let TyKind::Ref(lt, _) | TyKind::PinnedRef(lt, _) = ty.kind {