compiler: permit duplicate methods from embedded interfaces

This is a language change for Go 1.14.

Updates golang/go#6977

Change-Id: Ia8b8dc446c4dd700caccf59ca0444a380c49ba15
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/214240
Reviewed-by: Than McIntosh <thanm@google.com>
1 file changed