DIP 1028---Make @safe the Default---Community Review Round 1

[Walter Bright]

On 1/3/2020 5:43 AM, Manu wrote:
> FWIW, I'm not emotional about this, but it seems like a really good
> opportunity to change @system to @unsafe, since @system appears almost
> nowhere in existing code (because is default).
> 'system' is a weird name for 'unsafe'. I've had lots of colleagues
> tell me they think it doesn't make sense... and I agree. It's a silly
> name, and defies the industries established terminology for no reason.
> We have exactly one opportunity to correct this, and this is it.

Andrei and I talked about this for a while before coming up with 'system'. We 
both felt that calling it 'unsafe' had undeserved negative connotations.