Bring back foreach int indexes - bug prone implicit conversions

[Nick Treleaven]

On Thursday, 30 November 2023 at 11:54:01 UTC, IGotD- wrote:
> One of the corner stones in D is that there are hardly any 
> implicit conversions.

I don't think that is true. In modern languages these would not 
be allowed:

typeof(null) -> T*
Often I want a pointer that always points to a T, e.g. for 
function arguments.

uint -> int
int -> uint
Even C compilers can catch these with warnings on.

int -> dchar
byte -> char

Then there's the problem of 0 and 1 matching a bool overload 
instead of int.

     enum Enum {member = 1}
     Enum e = Enum.member << 2; // wait, 4 isn't in Enum

I hope most of these can be disallowed in D3.