test case and fixes for object and classes inner for enum entry

compiler/testData/codegen/enum/entrywithinner.kt

@@ -0,0 +1,20 @@
+package test
+
+fun box() = IssueState.DEFAULT.ToString() + IssueState.FIXED.ToString()
+
+enum class IssueState {
+   DEFAULT {
+       class D {
+          val k = ToString()
+       }
+   }
+   FIXED {
+       override fun ToString() = "K"
+
+       object D {
+          val k = ToString()
+       }
+   }
+
+   open fun ToString() : String = "O"
+}