Fix for starting 'Rename LibraryElement' refactoring.

pkg/analysis_server/test/edit/refactoring_test.dart

 // Copyright (c) 2014, 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 test.edit.refactoring;
 
 import 'dart:async';
 
 import 'package:analysis_server/src/edit/edit_domain.dart';
 import 'package:analysis_server/src/protocol.dart';
@@ skipping 1253 matching lines @@
       return sendRenameRequest('// nothing', null);
     }).then((result) {
       assertResultProblemsFatal(
           result.initialProblems,
           'Unable to create a refactoring');
       // ...there is no any change
       expect(result.change, isNull);
     });
   }
 
+  test_library_libraryDirective() {
+    addTestFile('''
+library aaa.bbb.ccc;
+''');
+    return assertSuccessfulRefactoring(() {
+      return sendRenameRequest('library aaa', 'my.new_name');
+    }, '''
+library my.new_name;
+''');
+  }
+
+  test_library_libraryDirective_name() {
+    addTestFile('''
+library aaa.bbb.ccc;
+''');
+    return assertSuccessfulRefactoring(() {
+      return sendRenameRequest('aaa', 'my.new_name');
+    }, '''
+library my.new_name;
+''');
+  }
+
+  test_library_libraryDirective_nameDot() {
+    addTestFile('''
+library aaa.bbb.ccc;
+''');
+    return assertSuccessfulRefactoring(() {
+      return sendRenameRequest('.bbb', 'my.new_name');
+    }, '''
+library my.new_name;
+''');
+  }
+
   test_localVariable() {
     addTestFile('''
 main() {
   int test = 0;
   test = 1;
   test += 2;
   print(test);
 }
 ''');
     return assertSuccessfulRefactoring(() {
@@ skipping 185 matching lines @@
   }
 
   @override
   void setUp() {
     super.setUp();
     server.handlers = [new EditDomainHandler(server),];
     createProject();
     handler = new EditDomainHandler(server);
   }
 }