Prepare for new properties on int (#9829)

Author: srawlins

packages/devtools_app/test/screens/debugger/debugger_evaluation_test.dart

@@ -261,6 +261,9 @@ void main() {
 
     test(
       'returns no operators for int',
+      // Temporarily skip this test while Flutter gets a Dart SDK with new
+      // properties on 'int'.
+      skip: true,
       () async {
         await runMethodAndWaitForPause(
           'AnotherClass().pauseWithScopedVariablesMethod()',