This CL makes the changes to actually use the module index when loading
packages and instead of scanning their directories to see if they
contain go files or to extract imports.
Change-Id: I70106181cf64d6fd5a416644ba518b6b90030e0a
Reviewed-on: https://go-review.googlesource.com/c/go/+/403778 Reviewed-by: Michael Matloob <matloob@golang.org> Reviewed-by: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Michael Matloob <matloob@golang.org>