Replace expect() with outOfTestExpect() in Analysis Server performance benchmark.

pkg/analysis_server/tool/spec/codegen_inttest_methods.dart

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 /**
  * Code generation for the file "integration_test_methods.dart".
  */
 library codegenInttestMethods;
 
 import 'dart:convert';
@@ skipping 161 matching lines @@
     writeln('StreamController<$className> _$streamName;');
     fieldInitializationCode.add(collectCode(() {
       writeln('_$streamName = new StreamController<$className>(sync: true);');
       writeln('$streamName = _$streamName.stream.asBroadcastStream();');
     }));
     notificationSwitchContents.add(collectCode(() {
       writeln('case ${JSON.encode(notification.longEvent)}:');
       indent(() {
         String paramsValidator = camelJoin(
             ['is', notification.domainName, notification.event, 'params']);
-        writeln('expect(params, $paramsValidator);');
+        writeln('outOfTestExpect(params, $paramsValidator);');
         String constructorCall;
         if (notification.params == null) {
           constructorCall = 'new $className()';
         } else {
           constructorCall =
               "new $className.fromJson(decoder, 'params', params)";
         }
         writeln('_$streamName.add($constructorCall);');
         writeln('break;');
       });
@@ skipping 55 matching lines @@
       String methodJson = JSON.encode(request.longMethod);
       writeln('var result = await server.send($methodJson, $paramsVar);');
       if (request.result != null) {
         String kind = 'null';
         if (requestClass == 'EditGetRefactoringParams') {
           kind = 'kind';
         }
         writeln('ResponseDecoder decoder = new ResponseDecoder($kind);');
         writeln("return new $resultClass.fromJson(decoder, 'result', result);");
       } else {
-        writeln('expect(result, isNull);');
+        writeln('outOfTestExpect(result, isNull);');
         writeln('return null;');
       }
     });
     writeln('}');
   }
 }