{"ast_node_type":"other","tokens":[{"end":87,"kind":"keyword","start":0,"text":"//"}]}
                // `|x| x` becomes `|x| -> T x` which is invalid, so wrap it in a block
                cov_mark::hit!(wrap_closure_non_block_expr);
                builder.replace(tail_expr.syntax().text_range(), format!("{{{tail_expr}}}"));