Adopting a “better approach” for dealing with disputes about whether withdrawals from an Individual Retirement Account qualify as “income” under Section 505 of the Illinois Marriage and Dissolution of Marriage Act when ruling on a retirement-aged parent’s petition to reduce child support, the appellate court reversed an order that cut the monthly amount Michael Hickey owed to Cherie Verhines for their minor son from $3,043 to $1,700 — without treating as income any portion of the $400 …