ImportC and druntime's importc.h and __builtins.di

[Walter Bright]

On 9/9/2023 7:19 PM, Adam Wilson wrote:
> importc.h is how I nullified MSFT's idiotic #define based metadata annotations 
> that liter all of their header files while at DConf. One small step closer to 
> jettisoning the hopelessly outdated MinGW header translations from the Windows 
> XP era...
> 
> It Works.

I hope you did a PR for it!

Microsoft headers also include inline assembly with no way to turn it off. Sigh. 
I was forced to try supporting their inline assembler.