title: Intellij refactor type migration does nothing
body: <p>I am trying to change the type of License from string to int.  I right click on"string" and  chose type migration but nothing happens, What is this the correct way to to this ? </p>
  
  <pre><code>public class Worker implements Driver {
  
      private String wid;
      private String password;
      private String name;
      private String terms;
      private String position;
      private String license;
      private String bank;
  
      private int salary;
      private int startDay;
      private int startMonth;
      private int startYear;
     private int connected;
  }
  </code></pre>