(motive : Lean.Elab.Info → Sort u_1) →
  (info : Lean.Elab.Info) →
    ((ai : Lean.Elab.FVarAliasInfo) → motive (Lean.Elab.Info.ofFVarAliasInfo ai)) →
      ((x : Lean.Elab.Info) → motive x) → motive info