Oils integers should be arbitrary precision (OSH and YSH)

[andychu]

related to

• printf crashes with ValueError when integers are large #2107

[ale5000-git]

Are you sure "arbitrary precision" won't cause problems? (like floating-point)
Isn't 64-bit (long long) enough?

I have seen one implementation where when using printf on this "9223372036854775807" instead of requested number it display this: 9223372036854775808
and when using printf on this "18446744073709551615" instead of requested number it display this: 1.84467e+19

I hope this change doesn't cause this.

[andychu]

I mean like CPython -- the integers can be as large as you want, but also exact