// The problem in #66357 was that the call trace: | |
// | |
// - parse_fn_block_decl | |
// - expect_or | |
// - unexpected | |
// - expect_one_of | |
// - expected_one_of_not_found | |
// - recover_closing_delimiter | |
// | |
// ended up bubbling up `Ok(true)` to `unexpected` which then used `unreachable!()`. | |
fn f() { |[](* } //~ ERROR mismatched closing delimiter |