This patch addresses a bug where `cs`/`fs` and other segmentation flags
were being identified as having a type of `32b` and `64b` for `rflags`.
In that case the register value was returning the fail value `0xF...`
and this was corrupting some minidumps. Here we just read it as a 64b
value and truncate it.
In addition to that fix, I added comparing the registers from the live
process to the loaded core for the generic minidump test. Prior only
being ARM register tests. This explains why this was not detected
before.
82ebd333a8