ICE after Win64 ABI change

[Johan Engelen via digitalmars-d-ldc]

Hi all,
   I'd like some help with trying to fix Windows compilation of 
druntime/phobos after a recent Win64 ABI change. (it means I 
cannot build master nor merge-2.067)
See:
https://github.com/ldc-developers/ldc/pull/856

Thanks,
   Johan