Stop fighting the behavior of the go tool when run in these directories.
Updates golang/go#30790
Change-Id: I32dfeb0bafa3ed3664500f1768b2293e5257d09b
Reviewed-on: https://go-review.googlesource.com/c/tools/+/168757
Run-TryBot: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>