Change Summary

At the moment when checking for non-negative integers, we can get false-postives from types that aren't integer.

e.g. the original logic was equivalent to

>>> bool("__all__".__lt__(0))
<stdin>:1: DeprecationWarning: NotImplemented should not be used in a boolean context
True

... because comparisons between strings and integers are not implemented, and the dunder method does not raise type errors on NotImplemented.

Related issue number

Fixes pydantic/pydantic#9328

Checklist

• Unit tests for the changes exist
• Documentation reflects the changes where applicable
• Pydantic tests pass with this pydantic-core (except for expected changes)
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