Scenario:

1. get class B with internal or protected variable xxx, yyy; and class C inhertited B.

2. Inside the method on class C, type something like the following:

    static void MyMethod()
    {
        int xxx = 111, yyy = 222;
        DoMyNewAction(xxx, yyy);
    }

where the DoMyNewAction is unexistent function.

3. Select to introduce a new function. Resharper will generate the following one:

    static void DoMyNewAction(int xxx1, int yyy1)
    {
    }

But the '1's are not needed in this case.