Fix use of renamed feature flags

Signed-off-by: George Robinson <george.robinson@grafana.com>

Author: grobinson-grafana

cmd/alertmanager/main.go

@@ -180,9 +180,9 @@ func run() int {
 		level.Error(logger).Log("msg", "error parsing the feature flag list", "err", err)
 		return 1
 	}
-	compat.InitFromFlags(logger, featureConfig)
-	silence.InitFromFlags(logger, featureConfig)
 	types.InitFromFlags(logger, featureConfig)
+	silence.InitFromFlags(logger, featureConfig)
+	compat.InitFromFlags(logger, featureConfig)
 
 	err = os.MkdirAll(*dataDir, 0o777)
 	if err != nil {

silence/silence.go

@@ -476,7 +476,7 @@ var ValidateMatcher = func(m *pb.Matcher) error {
 
 // InitFromFlags initializes the validation function from the flagger.
 func InitFromFlags(l log.Logger, f featurecontrol.Flagger) {
-	if !f.ClassicMatchersParsing() {
+	if !f.ClassicMode() {
 		ValidateMatcher = func(m *pb.Matcher) error {
 			return validateUTF8Matcher(m)
 		}

types/types.go

@@ -330,7 +330,7 @@ func validateUTF8Ls(ls model.LabelSet) error {
 
 // InitFromFlags initializes the validation function from the flagger.
 func InitFromFlags(_ log.Logger, f featurecontrol.Flagger) {
-	if !f.ClassicMatchersParsing() {
+	if !f.ClassicMode() {
 		validateLs = func(ls model.LabelSet) error {
 			return validateUTF8Ls(ls)
 		}