@Nullable PsiVariable getVariableWithoutInitializer() {
      if (myThenVariable.hasInitializer()) {
        if (!myElseVariable.hasInitializer()) {
          return myElseVariable;
        }
      } else {
        if (!myElseVariable.hasInitializer()) {
          return myThenVariable;
        }
      }
      return null;
    }
@Nullable PsiVariable getVariableWithoutInitializer()