[swift-evolution] Proposal: Filter split extension on Sequence to return tuple of sequences that meet criteria and that do not

[gadiraju praneeth via swift-evolution]

Many times, I came across a scenario where I had to filter an array with a
condition and filter the same array with opposite of that condition. For
example:

let values = [2, 4, 3, 5, 6, 9]

let divisibleByTwo = values.filter { $0 % 2 == 0 }
let notDivisibleByTwo = values.filter { $0 % 2 != 0 }

Is there a way currently where we can filter the array into two arrays
based on a condition?

If not how about something like a filterSplit function where we get a tuple
of values:

values.filterSplit { $0 % 2 == 0 } = ([2,4,6], [3,5,9])

I have implemented this in our project and wanted to get your thoughts on it

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