Use OverrideMemberChooserObject to generate also abstract actual decls

Relates to KT-27093 and similar problems

idea/testData/multiModuleQuickFix/abstract/js/Abstract.kt.after

@@ -1,13 +1,12 @@
 // Abstract: to be implemented
 actual abstract class Abstract {
-
-    actual abstract fun String.bar(y: Double): Boolean
-
-    actual abstract var status: Int
     actual fun foo(param: String): Int {
         TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
     }
 
+    actual abstract fun String.bar(y: Double): Boolean
     actual val isGood: Boolean
         get() = TODO("not implemented") //To change initializer of created properties use File | Settings | File Templates.
+    actual abstract var status: Int
+
 }