Rename "pathos" package to "path".

sdk/lib/_internal/pub/test/deploy/copies_browser_js_next_to_entrypoints_test.dart

 // Copyright (c) 2013, 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:json' as json;
 
-import 'package:pathos/path.dart' as path;
+import 'package:path/path.dart' as path;
 import 'package:scheduled_test/scheduled_test.dart';
 
 import '../descriptor.dart' as d;
 import '../test_pub.dart';
 
 main() {
   initConfig();
 
   integration("compiles dart.js and interop.js next to entrypoints", () {
     // Dart2js can take a long time to compile dart code, so we increase the
@@ skipping 71 matching lines @@
             d.file('dart.js', 'contents of dart.js'),
             d.file('interop.js', 'contents of interop.js')
           ])]),
           d.matcherFile('subfile.dart.js', isNot(isEmpty)),
           d.matcherFile('subfile.dart', isNot(isEmpty))
         ])
       ])
     ]).validate();
   });
 }