Replace the occurrences of Constants.PRODUCT_NAME for a call to
BlazeRuntime#getProductName() or a reference to TestConstants.PRODUCT_NAME for tests.

This CL prepares the codebase in order to delete the constant.

--
MOS_MIGRATED_REVID=122993568
diff --git a/src/test/java/com/google/devtools/build/lib/skyframe/TimestampBuilderTestCase.java b/src/test/java/com/google/devtools/build/lib/skyframe/TimestampBuilderTestCase.java
index e1d2b5e..9f6bf6c 100644
--- a/src/test/java/com/google/devtools/build/lib/skyframe/TimestampBuilderTestCase.java
+++ b/src/test/java/com/google/devtools/build/lib/skyframe/TimestampBuilderTestCase.java
@@ -46,6 +46,7 @@
 import com.google.devtools.build.lib.packages.PackageFactory;
 import com.google.devtools.build.lib.pkgcache.PathPackageLocator;
 import com.google.devtools.build.lib.testutil.FoundationTestCase;
+import com.google.devtools.build.lib.testutil.TestConstants;
 import com.google.devtools.build.lib.testutil.TestRuleClassProvider;
 import com.google.devtools.build.lib.testutil.TestUtils;
 import com.google.devtools.build.lib.util.AbruptExitException;
@@ -140,7 +141,8 @@
     AtomicReference<PathPackageLocator> pkgLocator =
         new AtomicReference<>(new PathPackageLocator(outputBase, ImmutableList.of(rootDirectory)));
     AtomicReference<TimestampGranularityMonitor> tsgmRef = new AtomicReference<>(tsgm);
-    BlazeDirectories directories = new BlazeDirectories(rootDirectory, outputBase, rootDirectory);
+    BlazeDirectories directories = new BlazeDirectories(rootDirectory, outputBase, rootDirectory,
+        TestConstants.PRODUCT_NAME);
     ExternalFilesHelper externalFilesHelper = new ExternalFilesHelper(
         pkgLocator, false, directories);
     differencer = new RecordingDifferencer();