Enum entry has final modality when loaded from binaries.

compiler/testData/loadKotlinCustom/enum/enumVisibility.kt

@@ -0,0 +1,14 @@
+package test
+
+private enum class Pr {
+    A
+}
+
+internal enum class In {
+    A
+}
+
+public enum class Pu {
+    A
+}
+