Added static methods, nested classes and companion object from superclasses.

compiler/testData/diagnostics/tests/scopes/inheritance/nestedCompanionClassVsNestedJava.kt

@@ -0,0 +1,45 @@
+// FILE: 1.kt
+open class A {
+    class Y {
+        fun A_Y() {}
+    }
+
+    companion object {
+        class Z {
+            fun A_C_Z() {}
+        }
+    }
+}
+
+// FILE: B.java
+public class B extends A {
+    class Y {
+        void B_Y() {}
+    }
+
+    class Z {
+        void B_Z() {}
+    }
+}
+
+// FILE: C.java
+public class C extends A {}
+
+// FILE: 2.kt
+class E: B() {
+    init {
+        Y().B_Y()
+        Y().<!UNRESOLVED_REFERENCE!>A_Y<!>()
+
+        Z().B_Z()
+        Z().<!UNRESOLVED_REFERENCE!>A_C_Z<!>()
+    }
+}
+
+class Y: C() {
+    init {
+        Y().A_Y()
+
+        Z().A_C_Z()
+    }
+}