The8472 8dd903cc77 implement ConstSizeIntoIterator for &[T;N] in addition to [T;N]
Due to #20400 the corresponding TrustedLen impls need a helper trait
instead of directly adding `Item = &[T;N]` bounds.
Since TrustedLen is a public trait this in turn means
the helper trait needs to be public. Since it's just a workaround
for a compiler deficit it's marked hidden, unstable and unsafe.
2021-07-16 20:38:42 +02:00
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