if (aHintRight) mHint = HINTRIGHT; else mHint = HINTLEFT; return NS_OK;
return mRangeList->SetHint(aHintRight);
nsRangeList::SetHint(PRBool aHintRight){  if (aHintRight)    mHint = HINTRIGHT;  else    mHint = HINTLEFT;  return NS_OK;}