Allow [path.fromUri] to take a string as well as a URI.

sdk/lib/_internal/pub/lib/src/barback/build_environment.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.
 
 library pub.barback.build_environment;
 
 import 'dart:async';
 import 'dart:io';
 
 import 'package:barback/barback.dart';
@@ skipping 419 matching lines @@
 ///
 /// Since both [LogEntry] objects and the message itself often redundantly
 /// show the same context like the file where an error occurred, this tries
 /// to avoid showing redundant data in the entry.
 void _log(LogEntry entry) {
   messageMentions(text) =>
       entry.message.toLowerCase().contains(text.toLowerCase());
 
   messageMentionsAsset(id) =>
       messageMentions(id.toString()) ||
-      messageMentions(path.joinAll(path.url.split(entry.assetId.path)));
+      messageMentions(path.fromUri(entry.assetId.path));
 
   var prefixParts = [];
 
   // Show the level (unless the message mentions it).
   if (!messageMentions(entry.level.name)) {
     prefixParts.add("${entry.level} from");
   }
 
   // Show the transformer.
   prefixParts.add(entry.transform.transformer);
@@ skipping 71 matching lines @@
   String toString() => "polling";
 }
 
 class _NoneWatcherType implements WatcherType {
   const _NoneWatcherType();
 
   DirectoryWatcher create(String directory) => null;
 
   String toString() => "none";
 }