public boolean visitFunction(ExpressionOwner owner, Function func)
	{
		if((func instanceof FuncCurrent) ||
		   (func instanceof FuncExtFunction))
			m_isAbs = false;
		return true;
	}
public boolean visitFunction ( ExpressionOwner owner , Function func ) { if ( ( func instanceof FuncCurrent ) || ( func instanceof FuncExtFunction ) ) m_isAbs = false ; return true ; }
Visit a function.
@param owner The owner of the expression, to which the expression can
be reset if rewriting takes place.
@param func The function reference object.
@return true if the sub expressions should be traversed.