Deprecate implicit conversion between signed and unsigned integers

[monkyyy]

On Thursday, 6 February 2025 at 20:44:46 UTC, Walter Bright wrote:
> Having a function that searches an array for a value and 
> returns the index of the array if found, and -1 if not found, 
> is not a good practice.

All options suck, -1 should suck least; size_t is insane in the 
64bit era no one has that much ram, no one has that much ram for 
compressed bools of 2^63 bits