Sort separate Edits in FileEdit during adding.

pkg/analysis_services/test/refactoring/abstract_rename.dart

Index: pkg/analysis_services/test/refactoring/abstract_rename.dart
diff --git a/pkg/analysis_services/test/refactoring/abstract_rename.dart b/pkg/analysis_services/test/refactoring/abstract_rename.dart
index eb3c2fb02ab90677ed976dd518730787b9861df8..546b07fce2c1f76d019de22d997b682c6de401b8 100644
--- a/pkg/analysis_services/test/refactoring/abstract_rename.dart
+++ b/pkg/analysis_services/test/refactoring/abstract_rename.dart
@@ -61,9 +61,7 @@ class RenameRefactoringTest extends RefactoringTest {
     FileEdit fileEdit = refactoringChange.getFileEdit(testFile);
     expect(fileEdit, isNotNull);
     // validate resulting code
-    // TODO(paulberry): should the code under test be responsible for sorting
-    // the edits?
-    String actualCode = Edit.applySorted(testCode, fileEdit.edits);
+    String actualCode = Edit.applySequence(testCode, fileEdit.edits);
     expect(actualCode, expectedCode);
   }