{"ast_node_type":"other","tokens":[{"end":81,"kind":"keyword","start":0,"text":"ecx.expr_call(new_decl_span,"}]}
                    ecx.expr_call(new_decl_span, default_call_expr, thin_vec![]);
                let default_call_expr =
                exprs = ecx.expr_call(new_decl_span, bb_call_expr, thin_vec![default_call_expr]);