Rollup merge of #22835 - tshepang:remove-some-warnings, r=jakub-
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@@ -59,16 +59,16 @@ fn iterator_to_slice() {
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let mut iter = data.iter_mut();
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assert_eq!(&iter[..], &other_data[..]);
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// mutability:
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assert!(&mut iter[] == other_data);
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assert!(&mut iter[..] == other_data);
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iter.next();
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assert_eq!(&iter[..], &other_data[1..]);
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assert!(&mut iter[] == &mut other_data[1..]);
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assert!(&mut iter[..] == &mut other_data[1..]);
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iter.next_back();
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assert_eq!(&iter[..], &other_data[1..2]);
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assert!(&mut iter[] == &mut other_data[1..2]);
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assert!(&mut iter[..] == &mut other_data[1..2]);
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let s = iter.into_slice();
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assert!(s == &mut other_data[1..2]);
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