[PATCH 0/6] MR6032: include: Convert d3d8.h and d3d9.h to IDLs.

[Elizabeth Figura (＠zfigura)]

This does break compatibility in a few subtle ways. For example, the native
headers do not require COBJMACROS, and they include objbase.h. It's not clear to
me that these differences matter, but if they do, we can add widl extensions to
account for them.