I finally watched it (I failed to survive the long over-nighters until 10am to watch this one live >_<).

I want to offer congratulation and thanks to Iain for this work!

For me, this is perhaps the single most important work in the D ecosystem yet this year, and for me, I think the debugging environment remains the single most significant hurdle to confident and practical adoption of D in industry.

It brings me to the interesting realisation (which I already knew, I have just been denying), that for D to proceed on Windows, MSVC will have to go... and I don't know how to go about this :/

MS's debugger will presumably never support these features, but the de facto Windows toolchain emit's PDB for use with the MS tools. I wonder if there are competing debuggers that support PDB which could support unofficial extensions to PDB which may express D better?