types2 has already done most of the constant folding parts. The only
case left is unsafe.{Alignoff,Offsetof,Sizeof} with variable size
argument, which is handled separately during typecheck.
Change-Id: I8050b7613a16b19b91751726ac07253333177f73
Reviewed-on: https://go-review.googlesource.com/c/go/+/469595 Reviewed-by: Keith Randall <khr@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: David Chase <drchase@google.com>
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com> Reviewed-by: Keith Randall <khr@golang.org>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>