Minor: fix testdata

compiler/testData/diagnostics/testsWithJsStdLib/native/nativeSetter/onLocalNonNativeClassMembers.kt

@@ -1,4 +1,4 @@
-// !DIAGNOSTICS: -UNUSED_PARAMETER
+// !DIAGNOSTICS: -UNUSED_PARAMETER -NON_TOPLEVEL_CLASS_DECLARATION
 
 fun foo() {
     class A {
@@ -42,4 +42,4 @@ fun foo() {
         <!NATIVE_ANNOTATIONS_ALLOWED_ONLY_ON_MEMBER_OR_EXTENSION_FUN!>[nativeSetter]
         fun foo(<!NATIVE_INDEXER_CAN_NOT_HAVE_DEFAULT_ARGUMENTS!>a: Int = 0<!>, v: String)<!> = "OK"
     }
-}
+}