Revise true division for ints? Lets return (optionally) a Fraction!

In reply of this post: Literals for Decimal and Fraction - #25 by skirpichev

I don’t understand exactly this proposal. Would you add something like sys.int_info.default_integer_division_output_type?

If so, if I remember well, integer division is defined in the language definition. You should also change that.

IMHO introducing a Fraction literal it’s simpler.