[K/JS] Rework member-exportability check in a right way ^KT-61957 Fixed

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/utils/IrJsUtils.kt

@@ -43,8 +43,7 @@ fun IrClass.jsConstructorReference(context: JsIrBackendContext): IrExpression {
 }
 
 fun IrDeclaration.isExportedMember(context: JsIrBackendContext) =
-    (this is IrDeclarationWithVisibility && visibility.isPublicAPI) &&
-            parentClassOrNull?.isExported(context) == true
+    parentClassOrNull != null && isExported(context)
 
 fun IrDeclaration?.isExportedClass(context: JsIrBackendContext) =
     this is IrClass && kind.isClass && isExported(context)