[KT-4124] Support invocation of constructor of inner class from extension method

js/js.translator/testData/nestedTypes/cases/innerReferenceFromChild.kt

@@ -0,0 +1,25 @@
+package foo
+
+var i = 0
+
+abstract class Base {
+    val base = "b" + i++
+    inner class Inner {
+        fun o() = "O" + base
+        fun k() = "K" + base
+    }
+}
+
+class Child : Base()
+
+fun box(): String {
+    var result = ""
+    result += Child().Inner().o()
+
+    fun Child.f() {
+        result += Inner().k()
+    }
+    Child().f()
+
+    return if (result == "Ob0Kb1") "OK" else result
+}