Put comments about what operations do per block of related opcodes
instead of on each line. This is less repetitive and lets us be a bit
more verbose in our descriptions.
Doesn't change the generated code at all.
Change-Id: I98fbd4029df6537b10aac2113a00df121d0fca1b
Reviewed-on: https://go-review.googlesource.com/c/go/+/433736
Auto-Submit: Keith Randall <khr@google.com> Reviewed-by: David Chase <drchase@google.com>
Run-TryBot: Keith Randall <khr@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Keith Randall <khr@google.com>