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Nicholas Nethercote
2b431f768b
It determines if a function should have any `inline` attributes checked. For `ItemKind::Fn` it returns true or false depending on the details of the function; for anything other item kind it returns *true*. This latter case should instead be *false*. (In the nearby and similar functions `is_relevant_impl` and `is_relevant_trait` the non-function cases return false.) The effect of this is that non-functions are no longer checked. But rustc already disallows `inline` on any non-function items. So if anything its a tiny performance win, because that was useless anyway.