@Override
    public boolean equals(Object o) {
      if (this == o) return true;
      if (o == null || getClass() != o.getClass()) return false;

      PsiTypeItem that = (PsiTypeItem)o;

      if (myType == null) {
        if (that.myType != null) return false;
      }
      else {
        if (!myType.equals(that.myType)) return false;
      }

      return true;
    }
@Override
    public boolean equals(Object o)