Add an arityUpper field on arbitrary

[dubzzz]

💡 Idea

Today when asking for arrays of constantFrom users have to think about passing a maxLength for an optimal throughput.

By adding an optional field to give more details on the number of values that could possibly output an arbitrary we would make it feasible for arrays to cap themselves without any need from the user.

We discuss of upper as filtering, mapping can possibly reduce the arity in an unknown fashion.

[dubzzz]

⚠️ constant of clone able should probably count for infinity

[dubzzz]

I'm wondering if it would not be helpful for #5562. Indeed for regexes knowing the arity of some chunk could help us into accurately constraining variable ones. But maybe we don't need arity and just a more localized thing for this regex thing 🤔

[stale]

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