Add D front-end, libphobos library, and D2 testsuite... to GCC

[12345swordy]

On Monday, 29 October 2018 at 09:57:46 UTC, Walter Bright wrote:
> On 10/28/2018 8:43 PM, Mike Parker wrote:
>> Congratulations are in order for Iain Buclaw. His efforts have 
>> been rewarded in a big way. Last Friday, he got the greenlight 
>> to move forward with submitting his changes into GCC:
>
> Reddit: 
> https://www.reddit.com/r/programming/comments/9sb74k/the_d_language_frontend_finally_merged_into_gcc_9/
>
> HackerNews (at #12 on the front page):
> https://news.ycombinator.com/news

Be prepare for the influx of newbies ;-)