golang/go: [release-branch.go1.27] go1.27rc1
Change-Id: I140d62e6b20672d5e0283f042338017997fe1c69 Reviewed-on: https://go-review.googlesource.com/c/go/+/792340 Reviewed-by: Dmitri Shuralyov dmitshur@google.com Reviewed-by: Dmitri Shuralyov dmitshur@golang.org…