(CommandList
  children: [
    (FuncDef
      name: check
      body: 
        (BraceGroup
          children: [
            (If
              arms: [
                (if_arm
                  cond: [
                    (Pipeline
                      children: [
                        (C {(grep)} {(-qw)} {(DQ ($ VSub_Number '$2'))} {(DQ ($ VSub_Number '$1'))})
                      ]
                      negated: T
                    )
                  ]
                  action: [
                    (C {(echo)} {(DQ ('Did not find expected text in ') ($ VSub_Number '$1') (':'))})
                    (C {(echo)} {(DQ ('   ') ($ VSub_Number '$2'))})
                    (C {(echo)} {(DQ )})
                    (C {(echo)} {(DQ ('Actual output below:'))})
                    (C {(cat)} {(DQ ($ VSub_Number '$1'))})
                    (ControlFlow token:<ControlFlow_Exit exit> arg_word:{(1)})
                  ]
                  spids: [16777215 86]
                )
              ]
              spids: [16777215 131]
            )
          ]
          spids: [66]
        )
      spids: [62 65]
    )
    (C {(check)} {(dynamic_list.stdout)} {(DQ (main))})
    (C {(check)} {(dynamic_list.stdout)} {(DQ (_ZdlPv))})
    (C {(check)} {(dynamic_list.stdout)} {(DQ (_Z4t1_6v))})
    (C {(check)} {(dynamic_list.stdout)} {(DQ (_ZN4t16aC2Ev))})
    (C {(check)} {(dynamic_list.stdout)} {(DQ (_ZN4t16aD1Ev))})
    (C {(check)} {(dynamic_list.stdout)} {(DQ (_ZN4t16a1tEv))})
    (C {(check)} {(dynamic_list.stdout)} {(DQ (_ZTI4t16a))})
    (C {(check)} {(dynamic_list.stdout)} {(DQ (_ZTI4t16b))})
    (C {(check)} {(dynamic_list.stdout)} {(DQ (_ZTS4t16a))})
    (C {(check)} {(dynamic_list.stdout)} {(DQ (_ZTS4t16b))})
    (C {(check)} {(dynamic_list.stdout)} {(DQ (t20v))})
  ]
)