Query for -dip1000

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On Sunday, 10 February 2019 at 20:04:29 UTC, Per Nordlöw wrote:
> Is there a way to query if the -dip1000 flag has been passed to 
> the compiler? I need it for enabling certain DIP-1000 escape 
> analysis tests only when -dip1000 has been passed.
>
> For instance
>
>     static assert(!__traits(compiles, {
>                 char[] f()
>                 {
>                     char[2] x;
>                     return x[].splitterASCII!(_ => _ == ' 
> ').front;
>                 }
>             }));
>
> at
>
> https://github.com/nordlow/phobos-next/blob/bd2fe42978aab2313977042c858d77c5766538e8/src/splitter_ex.d#L110
>
> Or do I have to write a trait myself?

https://issues.dlang.org/show_bug.cgi?id=19669