[dart:io] Adds Platform.localeName

sdk/lib/_internal/js_runtime/lib/io_patch.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:_js_helper' show patch;
 
 @patch
 class _Directory {
   @patch
   static _current() {
@@ skipping 232 matching lines @@
 
   @patch
   static _environment() {
     throw new UnsupportedError("Platform._environment");
   }
 
   @patch
   static String _version() {
     throw new UnsupportedError("Platform._version");
   }
+
+  @patch
+  static String _localeName() {
+    throw new UnsupportedError("Platform._localeName");
+  }

[vsm, 2017/03/30 17:38:55]

DBC

Can you add the same here as well?

https://github.com/dart-lang/sdk/blob/master/pkg/dev_compiler/tool/input_sdk/...

[zra, 2017/03/30 17:48:38]

It doesn't look like that's the right thing to do. The input_sdk appears to be a
snapshot at a particular SDK version, not bleeding edge.

[vsm, 2017/03/30 18:00:14]

It used to be. It is now applied against the bleeding edge sdk. 

[zra, 2017/03/30 18:08:19]

No, it doesn't look like it. For example, _Platform._ansiSupported is there but
no longer exists. It seems like a bad idea to have two copies of this patch
file, and I'm not sure this CL should be trying to patch everything up.

[zra, 2017/03/30 19:09:47]

Anyhow, I removed _Platform._ansiSupported and added _Platform._localeName over
in the other file, but I'm not sure whether there are still other problems.

 }
 
 @patch
 class _ProcessUtils {
   @patch
   static void _exit(int status) {
     throw new UnsupportedError("ProcessUtils._exit");
   }
 
   @patch
@@ skipping 326 matching lines @@
   }
 }
 
 @patch
 class _IOService {
   @patch
   static Future _dispatch(int request, List data) {
     throw new UnsupportedError("_IOService._dispatch");
   }
 }