Temporarily disable overlapping summary check

pkg/dev_compiler/test/worker/worker_test.dart

 // Copyright (c) 2016, 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.
 
 import 'dart:async';
 import 'dart:convert';
 import 'dart:io';
 
 import 'package:bazel_worker/bazel_worker.dart';
 // TODO(jakemac): Remove once this is a part of the testing library.
@@ skipping 223 matching lines @@
         dartSdkSummary.path,
         '--summary-extension=api.ds',
         '-s',
         greetingSummary.path,
         '-s',
         greeting2Summary.path,
         '-o',
         helloJS.path,
         helloDart.path,
       ]);
-      expect(result.exitCode, 65);
-      expect(result.stdout, contains("conflict"));
-      expect(result.stdout, contains('${toUri(greetingDart.path)}'));
-      expect(helloJS.existsSync(), isFalse);
+      // TODO(vsm): Re-enable when we turn this check back on.
+      expect(result.exitCode, 0);
+      // expect(result.exitCode, 65);
+      // expect(result.stdout, contains("conflict"));
+      // expect(result.stdout, contains('${toUri(greetingDart.path)}'));
+      // expect(helloJS.existsSync(), isFalse);
     });
   });
 
   group('Error handling', () {
     final dartSdkSummary = file('lib/sdk/ddc_sdk.sum');
     final badFileDart = file('test/worker/bad.dart');
     final badFileJs = file('test/worker/bad.js');
 
     tearDown(() {
       if (badFileDart.existsSync()) badFileDart.deleteSync();
@@ skipping 107 matching lines @@
 Future<WorkResponse> _readResponse(MessageGrouper messageGrouper) async {
   var buffer = (await messageGrouper.next) as List<int>;
   try {
     return new WorkResponse.fromBuffer(buffer);
   } catch (_) {
     var bufferAsString =
         buffer == null ? '' : 'String: ${UTF8.decode(buffer)}\n';
     throw 'Failed to parse response:\nbytes: $buffer\n$bufferAsString';
   }
 }