nsInfoListImpl::Append(nsIFrame* aList)
nsInfoListImpl::Append(nsIPresShell* aPresShell, nsIFrame* aList)
nsInfoListImpl::Append(nsIFrame* aList){    nsCalculatedBoxInfo* first;    nsCalculatedBoxInfo* last;    mCount += CreateInfosFor(aList, first, last);    if (!mFirst)         mFirst = first;    else         mLast->next = first;        mLast = last;}