Fix uses of LocalRepositoryLookupFunction to work with JDK7.

--
MOS_MIGRATED_REVID=137257525

src/test/java/com/google/devtools/build/lib/skyframe/PackageLookupFunctionTest.java

diff --git a/src/test/java/com/google/devtools/build/lib/skyframe/PackageLookupFunctionTest.java b/src/test/java/com/google/devtools/build/lib/skyframe/PackageLookupFunctionTest.java
index a8ead28..48dd471 100644
--- a/src/test/java/com/google/devtools/build/lib/skyframe/PackageLookupFunctionTest.java
+++ b/src/test/java/com/google/devtools/build/lib/skyframe/PackageLookupFunctionTest.java
@@ -124,7 +124,8 @@
         SkyFunctions.FILE_SYMLINK_CYCLE_UNIQUENESS, new FileSymlinkCycleUniquenessFunction());
 
     ImmutableMap<String, RepositoryFunction> repositoryHandlers =
-        ImmutableMap.of(LocalRepositoryRule.NAME, new LocalRepositoryFunction());
+        ImmutableMap.of(
+            LocalRepositoryRule.NAME, (RepositoryFunction) new LocalRepositoryFunction());
     skyFunctions.put(
         SkyFunctions.REPOSITORY_DIRECTORY,
         new RepositoryDelegatorFunction(repositoryHandlers, null, new AtomicBoolean(true)));