Add conformance to RangeReplaceableCollection #1
Description
We should support RangeReplaceableCollection. We can't optimize it like we can with front/back mutation, but it would make Deque a better drop-in replacement for Array.
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We should support RangeReplaceableCollection. We can't optimize it like we can with front/back mutation, but it would make Deque a better drop-in replacement for Array.