Default constructor for dart:io Path now handles native Windows paths. Path() now does the same as…

tests/compiler/dart2js/mirrors_test.dart

Index: tests/compiler/dart2js/mirrors_test.dart
diff --git a/tests/compiler/dart2js/mirrors_test.dart b/tests/compiler/dart2js/mirrors_test.dart
index 9d2e8d7a51c20015d5fd1e9b09cc4d3b0abea842..9f10a8c4c8d348cd42a7d0fdfc3bc586b30ce8f0 100644
--- a/tests/compiler/dart2js/mirrors_test.dart
+++ b/tests/compiler/dart2js/mirrors_test.dart
@@ -34,10 +34,10 @@ DeclarationMirror findMirror(List<DeclarationMirror> list, String name) {
 }
 
 main() {
-  var scriptPath = new Path.fromNative(new Options().script);
+  var scriptPath = new Path(new Options().script);
   var dirPath = scriptPath.directoryPath;
-  var libPath = dirPath.join(new Path.fromNative('../../../sdk/'));
-  var inputPath = dirPath.join(new Path.fromNative('mirrors_helper.dart'));
+  var libPath = dirPath.join(new Path('../../../sdk/'));
+  var inputPath = dirPath.join(new Path('mirrors_helper.dart'));
   var compilation = new Compilation.library([inputPath], libPath, null,
       <String>['--preserve-comments']);
   Expect.isNotNull(compilation, "No compilation created");