[ros-kernel] crash in win32k

[Ge van Geldorp]

> From: Filip Navara
> 
> P.S. A topic for next Weekend Project: Merge the GDI and ENG 
> (the first 
> two i mentioned) handle table management.

The GDI handle table is documented in the Feng Yuan book ("Windows
graphics programming"), I've been meaning to migrate our handle table to
the format described there but haven't gotten around to actually doing
it.

Ge van Geldorp.