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

js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/NestedTypesTest.java

@@ -58,6 +58,10 @@ public class NestedTypesTest extends SingleFileTranslationTest {
         checkFooBoxIsOk();
     }
 
+    public void testInnerReferenceFromChild() throws Exception {
+        checkFooBoxIsOk();
+    }
+
     @NotNull
     @Override
     protected List<String> additionalJsFiles(@NotNull EcmaVersion ecmaVersion) {

js/js.translator/src/org/jetbrains/kotlin/js/translate/callTranslator/CallInfo.kt

@@ -35,6 +35,7 @@ import org.jetbrains.kotlin.js.translate.general.Translation
 import org.jetbrains.kotlin.js.translate.utils.JsDescriptorUtils
 import org.jetbrains.kotlin.psi.KtSuperExpression
 import org.jetbrains.kotlin.resolve.scopes.receivers.ExpressionReceiver
+import org.jetbrains.kotlin.resolve.scopes.receivers.ExtensionReceiver
 import org.jetbrains.kotlin.resolve.scopes.receivers.ThisClassReceiver
 
 interface CallInfo {
@@ -79,6 +80,9 @@ val CallInfo.superCallReceiver : JsExpression?
             is ThisClassReceiver -> {
                 JsLiteral.THIS
             }
+            is ExtensionReceiver -> {
+                JsLiteral.THIS
+            }
             else -> {
                 null
             }

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
+}