Turned off lowering of outer class for inner class constructors.

Constructors of inner classes already have access to their outer class
through its dispatch receiver parameter.

backend.native/tests/build.gradle

@@ -424,6 +424,11 @@ task innerClass_noPrimaryConstructor(type: RunKonanTest) {
     source = "codegen/innerClass/noPrimaryConstructor.kt"
 }
 
+task innerClass_secondaryConstructor(type: RunKonanTest) {
+    goldValue = "42\n"
+    source = "codegen/innerClass/secondaryConstructor.kt"
+}
+
 task localClass_localHierarchy(type: RunKonanTest) {
     goldValue = "OK\n"
     source = "codegen/localClass/localHierarchy.kt"

backend.native/tests/codegen/innerClass/secondaryConstructor.kt

@@ -0,0 +1,20 @@
+class Outer(val x: Int) {
+    inner class Inner() {
+        inner class InnerInner() {
+
+            init {
+                println(x)
+            }
+
+            lateinit var s: String
+
+            constructor(s: String) : this() {
+                this.s = s
+            }
+        }
+    }
+}
+
+fun main(args : Array<String>) {
+    Outer(42).Inner().InnerInner("zzz")
+}