Implement all_children
for unbounded integers
#3983
Merged
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closes #3974. Turns out this definitely can happen in practice!
The reproducer in the issue is actually the worst case for this bug. Conditions for triggering are a strategy with a single unbounded
st.integers
strategy as the heaviest (or only) branching point in its choice tree. I'm guessing we're saturating the 8 and/or 16 bit integer buckets and then getting unlucky by trying to draw from said buckets 10 times in a row, triggering our deduplication fallback to exhaustive enumeration.