{"ast_node_type":"variable","tokens":[{"end":39,"kind":"keyword","start":0,"text":"let"}]}
        let ty = self.lower_ty(hir_ty);
    pub(crate) fn lower_ty_saving_user_provided_ty(&self, hir_ty: &'tcx hir::Ty<'tcx>) -> Ty<'tcx> {
        debug!(?ty);