Those messages include an error number in the Accellera implementation. Add those numbers to gem5 so it's easier to check against golden reference output for the regression tests. Change-Id: I35054dd187e86a87eb177f4695d61044c58ce262 Reviewed-on: https://gem5-review.googlesource.com/c/12450 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>