ifExpression
fun ifExpression(lPar: Node.Keyword.LPar = Node.Keyword.LPar(), condition: Node.Expression, rPar: Node.Keyword.RPar = Node.Keyword.RPar(), body: Node.Expression, elseBody: Node.Expression? = null, supplement: NodeSupplement = NodeSupplement()): Node.Expression.IfExpression
Creates a new Node.Expression.IfExpression instance.