fix: Fix issues found by Dart analyzer

modules/angular2/src/core/compiler/base_query_list.dart

@@ -1,4 +1,4 @@
-library angular2.src.core.compiler.query_list;
+library angular2.src.core.compiler.base_query_list;
 
 import 'package:angular2/src/core/annotations/annotations.dart';
 import 'dart:collection';

modules/angular2/src/facade/browser.dart

@@ -2,6 +2,7 @@
  * Dart version of browser APIs. This library depends on 'dart:html' and
  * therefore can only run in the browser.
  */
+library angular2.src.facade.browser; 
 
 import 'dart:js' show context;
 

modules/angular2/src/services/xhr_impl.dart

@@ -1,3 +1,5 @@
+library angular2.src.services.xhr_impl; 
+
 import 'dart:async';
 import 'dart:html';
 import 'package:angular2/di.dart';

modules/angular2/src/transform/directive_processor/rewriter.dart

@@ -1,4 +1,4 @@
-library angular2.transform.directive_processor;
+library angular2.transform.directive_processor.rewriter;
 
 import 'package:analyzer/analyzer.dart';
 import 'package:analyzer/src/generated/java_core.dart';

modules/angular2/src/transform/directive_processor/visitors.dart

@@ -1,4 +1,4 @@
-library angular2.transform.directive_processor;
+library angular2.transform.directive_processor.visitors;
 
 import 'package:analyzer/analyzer.dart';
 import 'package:analyzer/src/generated/java_core.dart';