{"ast_node_type":"variable","tokens":[{"end":52,"kind":"keyword","start":0,"text":"let"}]}
            let ty = self.resolve(ty, &hir_ty.span);
        if let Some(ty) = self.fcx.node_ty_opt(hir_ty.hir_id) {
            self.write_ty_to_typeck_results(hir_ty.hir_id, ty);