tests: Added GTests for base/types.cc

Change-Id: I9515735efdd452a9f8c98f37f4ec2c27120929f5
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/21659
Reviewed-by: Bobby R. Bruce <bbruce@ucdavis.edu>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br>
Maintainer: Bobby R. Bruce <bbruce@ucdavis.edu>
Maintainer: Jason Lowe-Power <jason@lowepower.com>
Tested-by: kokoro <noreply+kokoro@google.com>
2 files changed