re-enable the test

Author: cloud-fan

sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/CodeGenerationSuite.scala

@@ -563,8 +563,8 @@ class CodeGenerationSuite extends SparkFunSuite with ExpressionEvalHelper {
     assert(refTerm.contains("scala.math.LowPriorityOrderingImplicits$$anon$"))
   }
 
-  // TODO (SPARK-35579): Fix this bug in janino or work around it in Spark.
-  ignore("SPARK-35578: final local variable bug in janino") {
+  // TODO (SPARK-35579): Fix this bug in janino and upgrade janino in Spark.
+  test("SPARK-35578: final local variable bug in janino") {
     val code =
       """
         |public Object generate(Object[] references) {