[Dlang-internal] DIP1000 discussion and testing

[Martin Nowak via Dlang-internal]

On Tuesday, 25 October 2016 at 10:05:50 UTC, Walter Bright wrote:
> One way of fixing it besides doing multiple passes is noting 
> its use inside dg, and setting a flag saying it cannot be made 
> scope, and so the scoped assignment becomes an error.

A tristate tainting, unkown/scope/escape, should indeed work here.