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/pkgcache/IncrementalLoadingTest.java b/src/test/java/com/google/devtools/build/lib/pkgcache/IncrementalLoadingTest.java
index 053c5eb..32497bd 100644
--- a/src/test/java/com/google/devtools/build/lib/pkgcache/IncrementalLoadingTest.java
+++ b/src/test/java/com/google/devtools/build/lib/pkgcache/IncrementalLoadingTest.java
@@ -42,6 +42,7 @@
 import com.google.devtools.build.lib.skyframe.SkyframeExecutor;
 import com.google.devtools.build.lib.syntax.GlobList;
 import com.google.devtools.build.lib.testutil.ManualClock;
+import com.google.devtools.build.lib.testutil.TestConstants;
 import com.google.devtools.build.lib.testutil.TestRuleClassProvider;
 import com.google.devtools.build.lib.util.BlazeClock;
 import com.google.devtools.build.lib.util.Preconditions;
@@ -468,7 +469,8 @@
       skyframeExecutor =
           SequencedSkyframeExecutor.create(
               new PackageFactory(TestRuleClassProvider.getRuleClassProvider()),
-              new BlazeDirectories(fs.getPath("/install"), fs.getPath("/output"), workspace),
+              new BlazeDirectories(fs.getPath("/install"), fs.getPath("/output"), workspace,
+                  TestConstants.PRODUCT_NAME),
               null, /* BinTools */
               null, /* workspaceStatusActionFactory */
               TestRuleClassProvider.getRuleClassProvider().getBuildInfoFactories(),
@@ -477,7 +479,8 @@
               supplier,
               ImmutableMap.<SkyFunctionName, SkyFunction>of(),
               ImmutableList.<PrecomputedValue.Injected>of(),
-              ImmutableList.<SkyValueDirtinessChecker>of());
+              ImmutableList.<SkyValueDirtinessChecker>of(),
+              TestConstants.PRODUCT_NAME);
       skyframeExecutor.preparePackageLoading(
           new PathPackageLocator(outputBase, ImmutableList.of(workspace)),
           ConstantRuleVisibility.PUBLIC, true, 7, "",