Parsing D files with non-unicode characters

[Arun Chandrasekaran]

I'm converting a large amount of header files from C to D using 
DStep and I'm stuck at 
https://github.com/jacob-carlborg/dstep/issues/215

https://dlang.org/spec/intro.html shows that ASCII and UTF char 
formats are accepted. How do I go about converting a large code 
base like this?

Is this a bug in D to reject non-unicode chars in comments?

Arun