// 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 expected one of `,` or `:`, found `(` //~| ERROR expected one of `&`, `(`, `)`, `-`, `...`, `..=`, `..`, `[`, `_`, `box`, `mut`, `ref`, `|`, identifier, or path, found `*`