Change the deferred library check tool to allow unspecified packages to be in

lib/json_info_codec.dart

Index: lib/json_info_codec.dart
diff --git a/lib/json_info_codec.dart b/lib/json_info_codec.dart
index 1308d4d28a419e11a932109f35f928ca2354ed1e..b042a40bf92b8bc973ffa7751858248cd4aebb6d 100644
--- a/lib/json_info_codec.dart
+++ b/lib/json_info_codec.dart
@@ -300,7 +300,7 @@ class AllInfoToJsonConverter extends Converter<AllInfo, Map>
   Map _visitBasicInfo(BasicInfo info) {
     var res = {
       'id': info.serializedId,
-      'kind': _kindToString(info.kind),
+      'kind': kindToString(info.kind),
       'name': info.name,
       'size': info.size,
     };