Reset refactoring manager on any analysis.

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 1026 matching lines @@
     return getRefactoringResult(() {
       return sendRenameRequest('test = 0', 'newName', false);
     }).then((result) {
       List<RefactoringProblem> problems = result.finalProblems;
       expect(problems, hasLength(1));
       assertResultProblemsError(
           problems,
           "Duplicate local variable 'newName'.");
     });
   }
+
+  test_resetOnAnalysis() {
+    addTestFile('''
+main() {
+  int initialName = 0;
+  print(initialName);
+}
+''');
+    // send the first request
+    return getRefactoringResult(() {
+      return sendRenameRequest('initialName =', 'newName', true);
+    }).then((result) {
+      RenameFeedback feedback = result.feedback;
+      expect(feedback.oldName, 'initialName');
+      // update the file
+      modifyTestFile('''
+main() {
+  int otherName = 0;
+  print(otherName);
+}
+''');
+      // send the second request, with the same kind, file and offset
+      return waitForTasksFinished().then((_) {
+        return getRefactoringResult(() {
+          return sendRenameRequest('otherName =', 'newName', true);
+        }).then((result) {
+          RenameFeedback feedback = result.feedback;
+          // the refactoring was reset, so we don't get a stale result
+          expect(feedback.oldName, 'otherName');
+        });
+      });
+    });
+  }
 }
 
 
 @ReflectiveTestCase()
 class _AbstractGetRefactoring_Test extends AbstractAnalysisTest {
   /**
    * Asserts that [problems] has a single ERROR problem.
    */
   void assertResultProblemsError(List<RefactoringProblem> problems,
       [String message]) {
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   }
 
   @override
   void setUp() {
     super.setUp();
     server.handlers = [new EditDomainHandler(server),];
     createProject();
     handler = new EditDomainHandler(server);
   }
 }