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

tests/compiler/dart2js/analyze_api_test.dart

Index: tests/compiler/dart2js/analyze_api_test.dart
diff --git a/tests/compiler/dart2js/analyze_api_test.dart b/tests/compiler/dart2js/analyze_api_test.dart
index 4e75440e03f0c475bce716958538de3a08230fcf..8ae41920566997dabb91b7f5f25d4e9b097c71d8 100644
--- a/tests/compiler/dart2js/analyze_api_test.dart
+++ b/tests/compiler/dart2js/analyze_api_test.dart
@@ -5,7 +5,6 @@
 library analyze_api;
 
 import "package:expect/expect.dart";
-import 'dart:uri';
 import 'dart:io';
 import '../../../sdk/lib/_internal/compiler/compiler.dart' as api;
 import '../../../sdk/lib/_internal/compiler/implementation/apiimpl.dart';
@@ -118,7 +117,7 @@ void main() {
   var uriList = new List<Uri>();
   LIBRARIES.forEach((String name, LibraryInfo info) {
     if (info.documented) {
-      uriList.add(new Uri.fromComponents(scheme: 'dart', path: name));
+      uriList.add(new Uri(scheme: 'dart', path: name));
     }
   });
   var provider = new SourceFileProvider();