The lowests fives bits are the kind, and the next five bits are attributes,
not the other way around.
Change-Id: I5e1d13b195b766e99f66bb1227cc7f84e85dc49d
Reviewed-on: https://go-review.googlesource.com/c/go/+/425185 Reviewed-by: Ian Lance Taylor <iant@google.com> Reviewed-by: Keith Randall <khr@google.com> Reviewed-by: Daniel Martà <mvdan@mvdan.cc> Reviewed-by: Keith Randall <khr@golang.org>
Auto-Submit: Keith Randall <khr@golang.org>