These were written before compiler optimizations and array invariant. It is now impossible for t[1] to be stored in the hash part, as this would violate the array invariant that says that elements 1..#t are stored in the array.
For ipairs, it doesn't traverse the hash part anymore now, so we adjust the code to make sure no elements outside of the 1..#t slice are covered. For table.find, we can use find-with-offset to still access the hash part.
These were written before compiler optimizations and array invariant. It is now impossible for t[1] to be stored in the hash part, as this would violate the array invariant that says that elements 1..#t are stored in the array.
For ipairs, it doesn't traverse the hash part anymore now, so we adjust the code to make sure no elements outside of the 1..#t slice are covered. For table.find, we can use find-with-offset to still access the hash part.
Fixes #1283.