func github.com/golang/protobuf/jsonpb.isMessageSet

3 uses

	github.com/golang/protobuf/jsonpb (current package)
		decode.go#L356: 		if xt == nil && isMessageSet(md) {
		encode.go#L399: 		if isMessageSet(fd.ContainingMessage()) {
		json.go#L66: func isMessageSet(md protoreflect.MessageDescriptor) bool {