[ros-diffs] [sginsberg] 43283: Mega KD64 revival patch: KD64 - Fix some 64-bit issues and some x86 specificness. - Sub out some KdpTrap cases more properly. - Implement support for .crash and .reboot. Does not seem to work currently because of weird issues. - Implement KdpDprintf to send strings directly to the debugger from inside of KD64. Use it in KdEnterDebugger instead of DbgPrint so we won't try to enter the debugger recursively. - Implement KdUpdateDataBlock to set the KeUserCallbackDispatcher pointe