Simplify code using CaretPreservingEditTransaction

src/EditorFeatures/CSharp/CompleteStatement/CompleteStatementCommandHandler.cs

@@ -55,9 +55,6 @@ public CompleteStatementCommandHandler(ITextUndoHistoryRegistry textUndoHistoryR
 
         public void ExecuteCommand(TypeCharCommandArgs args, Action nextCommandHandler, CommandExecutionContext executionContext)
         {
-            var history = _textUndoHistoryRegistry.GetHistory(args.SubjectBuffer);
-            var operations = _editorOperationsFactoryService.GetEditorOperations(args.TextView);
-
             var willMoveSemicolon = BeforeExecuteCommand(speculative: true, args: args, executionContext: executionContext);
             if (!willMoveSemicolon)
             {
@@ -66,9 +63,7 @@ public void ExecuteCommand(TypeCharCommandArgs args, Action nextCommandHandler,
                 return;
             }
 
-            using var transaction = new HACK_TextUndoTransactionThatRollsBackProperly(history.CreateTransaction(nameof(CompleteStatementCommandHandler)));
-
-            operations.AddBeforeTextBufferChangePrimitive();
+            using var transaction = CaretPreservingEditTransaction.TryCreate(CSharpEditorResources.Complete_statement_on_semicolon, args.TextView, _textUndoHistoryRegistry, _editorOperationsFactoryService);
 
             // Determine where semicolon should be placed and move caret to location
             BeforeExecuteCommand(speculative: false, args: args, executionContext: executionContext);
@@ -76,8 +71,6 @@ public void ExecuteCommand(TypeCharCommandArgs args, Action nextCommandHandler,
             // Insert the semicolon using next command handler
             nextCommandHandler();
 
-            operations.AddAfterTextBufferChangePrimitive();
-
             transaction.Complete();
         }