From 4affba4fec83ca1ebd082b8dd5823ffd98b203b9 Mon Sep 17 00:00:00 2001
From: Dan Field <dnfield@google.com>
Date: Fri, 27 Mar 2020 15:24:54 -0700
Subject: [PATCH] Add keep annotation to Locale.toString (#17376)

---
 lib/ui/window.dart                              | 1 +
 testing/dart/window_hooks_integration_test.dart | 1 +
 2 files changed, 2 insertions(+)

diff --git a/lib/ui/window.dart b/lib/ui/window.dart
index 1c9399b670e..d03ece63283 100644
--- a/lib/ui/window.dart
+++ b/lib/ui/window.dart
@@ -492,6 +492,7 @@ class Locale {
   /// This identifier happens to be a valid Unicode Locale Identifier using
   /// underscores as separator, however it is intended to be used for debugging
   /// purposes only. For parseable results, use [toLanguageTag] instead.
+  @keepToString
   @override
   String toString() {
     if (!identical(_cachedLocale, this)) {
diff --git a/testing/dart/window_hooks_integration_test.dart b/testing/dart/window_hooks_integration_test.dart
index 64fd956f196..17c1bf90890 100644
--- a/testing/dart/window_hooks_integration_test.dart
+++ b/testing/dart/window_hooks_integration_test.dart
@@ -19,6 +19,7 @@ import 'dart:typed_data';
 import 'package:test/test.dart';
 
 // HACK: these parts are to get access to private functions tested here.
+part '../../lib/ui/annotations.dart';
 part '../../lib/ui/channel_buffers.dart';
 part '../../lib/ui/compositing.dart';
 part '../../lib/ui/geometry.dart';