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ast: type check the `in` operator against the collection's types (#9110)

fix #5658

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Signed-off-by: Sebastian Spaink <sebastianspaink@gmail.com>
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Sebastian Spaink committed
565a134bb50f7d758567856a6fcd551873d89741
Parent: c56096f
Committed by GitHub <noreply@github.com> on 8/31/2026, 1:56:08 PM