Add server/cache support to gaeconfig.

milo/appengine/settings/acl_test.go

Index: milo/appengine/settings/acl_test.go
diff --git a/milo/appengine/settings/acl_test.go b/milo/appengine/settings/acl_test.go
index 2d99bd5866c075c4f583d524b9fd1d9227935d46..070c46abf1d628877083817f9bec95ab67ffc9e0 100644
--- a/milo/appengine/settings/acl_test.go
+++ b/milo/appengine/settings/acl_test.go
@@ -8,9 +8,9 @@ import (
 	"testing"
 
 	"github.com/luci/gae/impl/memory"
-	lucicfg "github.com/luci/luci-go/common/config"
 	memcfg "github.com/luci/luci-go/common/config/impl/memory"
 	"github.com/luci/luci-go/common/logging/gologger"
+	"github.com/luci/luci-go/luci_config/server/cfgclient/backend/testconfig"
 	"github.com/luci/luci-go/server/auth"
 	"github.com/luci/luci-go/server/auth/authtest"
 	"github.com/luci/luci-go/server/auth/identity"
@@ -27,7 +27,7 @@ func TestACL(t *testing.T) {
 		c = gologger.StdConfig.Use(c)
 
 		Convey("Set up projects", func() {
-			c = lucicfg.SetImplementation(c, memcfg.New(aclConfgs))
+			c = testconfig.WithCommonClient(c, memcfg.New(aclConfgs))
 			err := Update(c)
 			So(err, ShouldBeNil)