Allowing eliminates a class of possible misuse of unsafe.Pointer, and
allow callers to migrate from Value.Addr and Value.Pointer, thus they
can be now deprecated.
Fixes #40592
Change-Id: I798e507c748922cac5cc1c1971c1b2cc7095a068
Reviewed-on: https://go-review.googlesource.com/c/go/+/350691
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>