The great Skylark -> Starlark class migration:
  SkylarkRuleClassSerializer
  SkylarkProviderIdentifierCodecTest
  SkylarkProviderIdentifier

Rough algorithm:
 - Convert these class names
 - Convert methods, variables, other symbols encountered in the files these
 classes are defined in.
- *Don't* replace class names for classes defined in other files. These will
 be handled in their own order. This helps keep individual changelist scope
 small.

PiperOrigin-RevId: 307063447
diff --git a/src/main/java/com/google/devtools/build/lib/packages/TargetUtils.java b/src/main/java/com/google/devtools/build/lib/packages/TargetUtils.java
index 7bc58b0..ebb6e77 100644
--- a/src/main/java/com/google/devtools/build/lib/packages/TargetUtils.java
+++ b/src/main/java/com/google/devtools/build/lib/packages/TargetUtils.java
@@ -89,7 +89,7 @@
     }
 
     Rule rule = (Rule) target;
-    return !rule.getRuleClassObject().isSkylark() && rule.getRuleClass().equals("alias");
+    return !rule.getRuleClassObject().isStarlark() && rule.getRuleClass().equals("alias");
   }
 
   /**