v0.19.0
1. Fix XED data error for Int64x2 Greater compare, add overwrite defs. 2. Uint* equals could just use Int* equals, relaxed the defs. This CL generates CL 686876. Change-Id: Ib110e2547246a4e197348912c77793ab2bfc9466 Reviewed-on: https://go-review.googlesource.com/c/arch/+/686817 LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: David Chase <drchase@google.com>