d7ed5a52ff
This test was ignored long ago in https://github.com/rust-lang/rust/pull/20578/ when the syntax for closures was changed. The current status is that a closure with an explicit `!` return type will trigger the `unreachable_code` lint which appears to be the original intent of the test (https://github.com/rust-lang/rust/pull/16836). A closure without a return type won't trigger the lint since the `!` type isn't inferred (AFAIK). This restores the test to its original form.