pkg/intl: updated for latest unittest deprecations

pkg/intl/test/intl_message_basic_example_test.dart

Index: pkg/intl/test/intl_message_basic_example_test.dart
diff --git a/pkg/intl/test/intl_message_basic_example_test.dart b/pkg/intl/test/intl_message_basic_example_test.dart
index 249776c398a5e98a54cd2da2197f9bbfe5974929..9a16571866c849cb62389f8b19bde5e993c0277d 100644
--- a/pkg/intl/test/intl_message_basic_example_test.dart
+++ b/pkg/intl/test/intl_message_basic_example_test.dart
@@ -24,10 +24,10 @@ main() {
 
   test('Verify basic example printing localized messages', () {
     runAllTests(_) {
-      setup(expectAsync1(runProgram), addToList);
+      setup(expectAsync(runProgram), addToList);
     }
-    setup(expectAsync1(runAllTests), addToList);
-    waitForIt.future.then(expectAsync1((_) {
+    setup(expectAsync(runAllTests), addToList);
+    waitForIt.future.then(expectAsync((_) {
       expect(list[0], "Ran at 00:00:00 on Thursday, January 1, 1970");
       expect(list[1], "Ausgedruckt am 00:00:00 am Donnerstag, 1. Januar 1970.");
       expect(list[2], "วิ่ง 0:00:00 on วันพฤหัสบดี 1 มกราคม 1970.");