dmd 1.046 and 2.031 releases

[Walter Bright]

Robert Jacques wrote:
> The new rules are definitely an improvement over C, but they make 
> byte/ubyte/short/ushort second class citizens, because practically every 
> assignment requires a cast:
> byte a,b,c;
> c = cast(byte) a + b;

They've always been second class citizens, as their types keep getting 
promoted to int. They've been second class on the x86 CPUs, too, as 
short operations tend to be markedly slower than the corresponding int 
operations.

> And if it weren't for compatibility issues, it would almost be worth it 
> to remove them completely.

Shorts and bytes are very useful in arrays and data structures, but 
aren't worth much as local variables. If I see a:

     short s;

as a local, it always raises an eyebrow with me that there's a lurking bug.