Add codegen tests for local classes/objects declated in class initializers or class parameter initializers

compiler/testData/codegen/box/localClasses/localClassInInitializer.kt

@@ -0,0 +1,19 @@
+class A {
+    var a: String = "Fail"
+
+    {
+        open class B() {
+            open fun s() : String = "O"
+        }
+
+        object O: B() {
+            override fun s(): String = "K"
+        }
+
+        a = B().s() + O.s()
+    }
+}
+
+fun box() : String {
+    return A().a
+}