Add ImportC compiler to dmd

[Iain Buclaw]

On Sunday, 9 May 2021 at 20:57:06 UTC, Walter Bright wrote:
> https://github.com/dlang/dmd/pull/12507
>
> If you could add a C compiler to dmd with 3000 lines of code, 
> so C code could be imported directly? I would!

importC has been added as a keyword to bugzilla, please monitor 
it as any bugs are critical to be fixed before first release.

https://issues.dlang.org/buglist.cgi?keywords=importC