Implement 'edit.getRefactoring' for rename refactoring.

pkg/analysis_server/test/services/refactoring/rename_unit_member_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.services.refactoring.rename_unit_member;
 
 import 'package:analysis_server/src/protocol2.dart';
 import 'package:analysis_testing/reflective_tests.dart';
 import 'package:unittest/unittest.dart';
 
@@ skipping 206 matching lines @@
 
   test_checkNewName_ClassElement() {
     indexTestUnit('''
 class Test {}
 ''');
     createRenameRefactoringAtString('Test {}');
     // null
     refactoring.newName = null;
     assertRefactoringStatus(
         refactoring.checkNewName(),
-        RefactoringProblemSeverity.ERROR,
+        RefactoringProblemSeverity.FATAL,
         expectedMessage: "Class name must not be null.");
     // empty
     refactoring.newName = '';
     assertRefactoringStatus(
         refactoring.checkNewName(),
-        RefactoringProblemSeverity.ERROR,
+        RefactoringProblemSeverity.FATAL,
         expectedMessage: "Class name must not be empty.");
     // same
     refactoring.newName = 'Test';
     assertRefactoringStatus(
         refactoring.checkNewName(),
         RefactoringProblemSeverity.FATAL,
         expectedMessage: "The new name must be different than the current name.");
     // OK
     refactoring.newName = 'NewName';
     assertRefactoringStatusOK(refactoring.checkNewName());
   }
 
   test_checkNewName_FunctionElement() {
     indexTestUnit('''
 test() {}
 ''');
     createRenameRefactoringAtString('test() {}');
     // null
     refactoring.newName = null;
     assertRefactoringStatus(
         refactoring.checkNewName(),
-        RefactoringProblemSeverity.ERROR,
+        RefactoringProblemSeverity.FATAL,
         expectedMessage: "Function name must not be null.");
     // empty
     refactoring.newName = '';
     assertRefactoringStatus(
         refactoring.checkNewName(),
-        RefactoringProblemSeverity.ERROR,
+        RefactoringProblemSeverity.FATAL,
         expectedMessage: "Function name must not be empty.");
     // OK
     refactoring.newName = 'newName';
     assertRefactoringStatusOK(refactoring.checkNewName());
   }
 
   test_checkNewName_FunctionTypeAliasElement() {
     indexTestUnit('''
 typedef Test();
 ''');
     createRenameRefactoringAtString('Test();');
     // null
     refactoring.newName = null;
     assertRefactoringStatus(
         refactoring.checkNewName(),
-        RefactoringProblemSeverity.ERROR,
+        RefactoringProblemSeverity.FATAL,
         expectedMessage: "Function type alias name must not be null.");
     // OK
     refactoring.newName = 'NewName';
     assertRefactoringStatusOK(refactoring.checkNewName());
   }
 
   test_checkNewName_TopLevelVariableElement() {
     indexTestUnit('''
 var test;
 ''');
     createRenameRefactoringAtString('test;');
     // null
     refactoring.newName = null;
     assertRefactoringStatus(
         refactoring.checkNewName(),
-        RefactoringProblemSeverity.ERROR,
+        RefactoringProblemSeverity.FATAL,
         expectedMessage: "Variable name must not be null.");
     // empty
     refactoring.newName = '';
     assertRefactoringStatus(
         refactoring.checkNewName(),
-        RefactoringProblemSeverity.ERROR,
+        RefactoringProblemSeverity.FATAL,
         expectedMessage: "Variable name must not be empty.");
     // OK
     refactoring.newName = 'newName';
     assertRefactoringStatusOK(refactoring.checkNewName());
   }
 
   test_checkNewName_TopLevelVariableElement_const() {
     indexTestUnit('''
 const TEST = 0;
 ''');
     createRenameRefactoringAtString('TEST =');
     // null
     refactoring.newName = null;
     assertRefactoringStatus(
         refactoring.checkNewName(),
-        RefactoringProblemSeverity.ERROR,
+        RefactoringProblemSeverity.FATAL,
         expectedMessage: "Constant name must not be null.");
     // empty
     refactoring.newName = '';
     assertRefactoringStatus(
         refactoring.checkNewName(),
-        RefactoringProblemSeverity.ERROR,
+        RefactoringProblemSeverity.FATAL,
         expectedMessage: "Constant name must not be empty.");
     // OK
     refactoring.newName = 'NEW_NAME';
     assertRefactoringStatusOK(refactoring.checkNewName());
   }
 
   test_createChange_ClassElement() {
     indexTestUnit('''
 class Test implements Other {
   Test() {}
@@ skipping 180 matching lines @@
     return assertSuccessfulRename('''
 int newName = 0;
 main() {
   print(newName);
   newName = 1;
   newName += 2;
 }
 ''');
   }
 }