Fix incorrect 'original' in property accessors

#KT-3930 Fixed

compiler/testData/codegen/box/properties/kt3930.kt

@@ -0,0 +1,16 @@
+public abstract class Foo {
+    var isOpen = true
+        private set
+}
+public class Bar: Foo() {
+    inner class Baz {
+        fun call() {
+            val s = this@Bar
+            s.isOpen
+        }
+    }
+}
+fun box(): String {
+    Bar().Baz()
+    return "OK"
+}