class TestSuperInner2 extends TestSuperInner {
   protected class Inner2 extends TestSuperInner.Inner {
      protected Inner2() {
         super();// 2
      }
   }
}

class 'TestSuperInner2$Inner2' {
   method '<init> (LTestSuperInner2;)V' {
      7      3
      a      4
   }
}

Lines mapping:
2 <-> 4