Load Java enums as final classes

In case Java enum has an abstract member, it has the ACC_ABSTRACT flag
set in the bytecode. However, we should still load it with final
modality to be consistent with Kotlin enums which are always considered
final

 #KT-23426 Fixed

compiler/tests/org/jetbrains/kotlin/checkers/DiagnosticsTestGenerated.java

@@ -13446,6 +13446,11 @@ public class DiagnosticsTestGenerated extends AbstractDiagnosticsTest {
                     runTest("compiler/testData/diagnostics/tests/multiplatform/enum/enumEntryWithBody.kt");
                 }
 
+                @TestMetadata("javaEnum.kt")
+                public void testJavaEnum() throws Exception {
+                    runTest("compiler/testData/diagnostics/tests/multiplatform/enum/javaEnum.kt");
+                }
+
                 @TestMetadata("simpleEnum.kt")
                 public void testSimpleEnum() throws Exception {
                     runTest("compiler/testData/diagnostics/tests/multiplatform/enum/simpleEnum.kt");