Add ImportC compiler to dmd

[Basile B.]

On Monday, 10 May 2021 at 08:09:23 UTC, Ola Fosheim Grostad wrote:
> On Monday, 10 May 2021 at 02:12:02 UTC, Adam D. Ruppe wrote:
> ...
> It makes more sense to reuse clang and emit llvm IR.

Except that llvm IR is not understood by DMD, also llvm IR is 
post-semantic.
So you you have to take the opposite path, i.e IR -> AST, which 
is quite unusual.

Anyway, this is is not a bad idea, let's say for a another 
project.