[dev-211]
let's have:
public interface RootInterface {
  public int method1FromRootInterface();
  public String method2FromRootInterface(int x,int y);
  public boolean method3FromRootInterface(String a, String b);
}

public interface Interface1 extends RootInterface {
    public int methodFromInterface(String a); 
}


Now, create class B which implements Interface1. These methods should by added 
by Synchronize Tool:
  public int method1FromRootInterface();
  public String method2FromRootInterface(int x,int y);
  public boolean method3FromRootInterface(String a, String b);
  public int methodFromInterface(String a); 

but only
  public int method1FromRootInterface();
  public String method2FromRootInterface(int x,int y);
  public boolean method3FromRootInterface(String a, String b);

are added.