Changed default Uri constructor to Uri.fromComponents(), new default constructor is Uri.fromString(…

dart/runtime/bin/builtin.dart

 // Copyright (c) 2012, 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("builtin");
 #import("dart:uri");
 
 void print(arg) {
   _Logger._printString(arg.toString());
 }
@@ skipping 46 matching lines @@
     cwd = "/${cwd.replaceAll('\\', '/')}";
     _logResolution("## cwd: $cwd");
     if ((scriptName.length > 2) && (scriptName[1] == ":")) {
       // This is an absolute path.
       scriptName = "/${scriptName.replaceAll('\\', '/')}";
     } else {
       scriptName = scriptName.replaceAll('\\', '/');
     }
     _logResolution("## scriptName: $scriptName");
   }
-  var base = new Uri(scheme: "file", path: cwd.endsWith("/") ? cwd : "$cwd/");
+  var base =
+      new Uri.fromComponents(
+          scheme: "file",
+          path: cwd.endsWith("/") ? cwd : "$cwd/");
   _entrypoint = base.resolve(scriptName);
   _logResolution("# Resolved script to: $_entrypoint");
 
   return _entrypoint.toString();
 }
 
 String _resolveUri(String base, String userString) {
   var baseUri = new Uri.fromString(base);
   _logResolution("# Resolving: $userString from $base");
 
   // Relative URIs with scheme dart-ext should be resolved as if with no scheme.
   var uri = new Uri.fromString(userString);
   var resolved;
   if ('dart-ext' == uri.scheme) {
     resolved = baseUri.resolve(uri.path);
-    resolved = new Uri(scheme: "dart-ext", path: resolved.path);
+    resolved = new Uri.fromComponents(scheme: "dart-ext", path: resolved.path);
   } else {
     resolved = baseUri.resolve(userString);
   }
   _logResolution("# Resolved to: $resolved");
   return resolved.toString();
 }
 
 
 String _filePathFromUri(String userUri, bool isWindows) {
   var uri = new Uri.fromString(userUri);
@@ skipping 59 matching lines @@
   var path;
   if (_packageRoot !== null) {
     path = "${_packageRoot}${uri.path}";
   } else {
     path = _entrypoint.resolve('packages/${uri.path}').path;
   }
 
   _logResolution("# Package: $path");
   return path;
 }