Merge the dart:uri library into dart:core and update the Uri class

tests/utils/dummy_compiler_test.dart

Index: tests/utils/dummy_compiler_test.dart
diff --git a/tests/utils/dummy_compiler_test.dart b/tests/utils/dummy_compiler_test.dart
index ae44c2791a88b3a2943d416baf229bfbc18fae44..e490eb0b4f6779ed23ca003acbb14641435e21e3 100644
--- a/tests/utils/dummy_compiler_test.dart
+++ b/tests/utils/dummy_compiler_test.dart
@@ -6,7 +6,6 @@
 library dummy_compiler;
 
 import 'dart:async';
-import 'dart:uri';
 
 import '../../sdk/lib/_internal/compiler/compiler.dart';
 
@@ -93,9 +92,9 @@ void handler(Uri uri, int begin, int end, String message, Diagnostic kind) {
 
 main() {
   Future<String> result =
-      compile(new Uri.fromComponents(scheme: 'main'),
-              new Uri.fromComponents(scheme: 'lib', path: '/'),
-              new Uri.fromComponents(scheme: 'package', path: '/'),
+      compile(new Uri(scheme: 'main'),
+              new Uri(scheme: 'lib', path: '/'),
+              new Uri(scheme: 'package', path: '/'),
               provider, handler);
   result.then((String code) {
     if (code == null) {