Minor visibility tweaks

--
MOS_MIGRATED_REVID=103140718
diff --git a/src/main/java/com/google/devtools/build/lib/skyframe/RecursivePkgValue.java b/src/main/java/com/google/devtools/build/lib/skyframe/RecursivePkgValue.java
index fe2d2c4..04a5367 100644
--- a/src/main/java/com/google/devtools/build/lib/skyframe/RecursivePkgValue.java
+++ b/src/main/java/com/google/devtools/build/lib/skyframe/RecursivePkgValue.java
@@ -34,7 +34,7 @@
  */
 @Immutable
 @ThreadSafe
-class RecursivePkgValue implements SkyValue {
+public class RecursivePkgValue implements SkyValue {
   static final RecursivePkgValue EMPTY =
       new RecursivePkgValue(NestedSetBuilder.<String>emptySet(Order.STABLE_ORDER));