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

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

@@ -0,0 +1,27 @@
+// FILE: A.java
+public interface A {
+    public class A_
+}
+
+// FILE: 1.kt
+interface B {
+    class B_
+}
+
+class X: A {
+    val a: <!UNRESOLVED_REFERENCE!>A_<!> = <!UNRESOLVED_REFERENCE!>A_<!>()
+    val b: A.A_ = A.A_()
+
+    companion object {
+        val a: <!UNRESOLVED_REFERENCE!>A_<!> = <!UNRESOLVED_REFERENCE!>A_<!>()
+    }
+}
+
+class Y: B {
+    val a: <!UNRESOLVED_REFERENCE!>B_<!> = <!UNRESOLVED_REFERENCE!>B_<!>()
+    val b: B.B_ = B.B_()
+
+    companion object {
+        val b: <!UNRESOLVED_REFERENCE!>B_<!> = <!UNRESOLVED_REFERENCE!>B_<!>()
+    }
+}