Fix caching of light class data for nested classes

idea/testData/findUsages/java/findJavaClassUsages/JKClassDerivedInnerObjects.1.kt

@@ -0,0 +1,10 @@
+class Outer {
+    public trait T: A
+
+    public object O1: A()
+
+    class Inner {
+        public object O2: T
+    }
+}
+