- Allow KdpReadVirtualMemory to read SharedUserData since it's now readable.
- Allow it to read user-mode pointers as well, just not null-pointers.
- Fix KdpReportExceptionStateChange by implementing DumpTraceData. Now the crash in ndis.sys gets caught.
- Next up: implement breakpoints so that stepping out works.
svn path=/trunk/; revision=25997