Fix range inference hang

We shouldn't switch from range to no range for ZEND_DIV and instead
explicitly return an overflowing range. Otherwise the range will
not actually get updated

Fix range inference hang

We shouldn't switch from range to no range for ZEND_DIV and instead
explicitly return an overflowing range. Otherwise the range will
not actually get updated during widening, and we'll perform
essentially infinite narrowing.

Fixes oss-fuzz #40566.

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