(command.Pipeline
  children: [
    (command.BraceGroup
      children: [
        (command.Simple
          words: [{(cat)}]
          redirects: [
            (redir.HereDoc
              op: (Token id:Id.Redir_DLess val:'<<' span_id:9)
              fd: -1
              here_begin: 
                {(word_part.EscapedLiteral token:(Token id:Id.Lit_EscapedChar val:'\\E' span_id:10)) 
                  (OF)
                }
              here_end_span_id: 15
              stdin_parts: [('sayIt:\n') ('\t$(foreach b,$(BUILT_INS),echo XXX $(b:$X=) YYY;)\n')]
            )
          ]
        )
        (C {(cat)} {(Makefile)})
      ]
    )
    (command.Simple
      words: [{(make)} {(-f)} {(-)} {(sayIt)}]
      redirects: [
        (redir.Redir
          op: (Token id:Id.Redir_Great val:'2>' span_id:33)
          fd: 2
          arg_word: {(/dev/null)}
        )
      ]
    )
    (C {(sed)} {(-n)} {(-e)} {(SQ (Token id:Id.Lit_Chars val:'s/.*XXX \\(.*\\) YYY.*/\\1/p' span_id:45))})
    (C {(sort)})
    (command.BraceGroup
      children: [
        (command.ShAssignment
          pairs: [
            (assign_pair
              lhs: (sh_lhs_expr.Name name:bad)
              op: assign_op.Equal
              rhs: {(0)}
              spids: [57]
            )
          ]
        )
        (command.WhileUntil
          keyword: (Token id:Id.KW_While val:while span_id:61)
          cond: [(C {(read)} {(builtin)})]
          body: 
            (command.DoGroup
              children: [
                (command.ShAssignment
                  pairs: [
                    (assign_pair
                      lhs: (sh_lhs_expr.Name name:base)
                      op: assign_op.Equal
                      rhs: 
                        {
                          (command_sub
                            left_token: (Token id:Id.Left_DollarParen val:'$(' span_id:72)
                            command_list: 
                              (command.CommandList
                                children: [
                                  (C {(expr)} {(DQ ($ Id.VSub_DollarName '$builtin'))} 
                                    {(Id.Lit_Other ':')} {(SQ (Token id:Id.Lit_Chars val:'git-\\(.*\\)' span_id:82))}
                                  )
                                ]
                              )
                          )
                        }
                      spids: [71]
                    )
                  ]
                )
                (command.ShAssignment
                  pairs: [
                    (assign_pair
                      lhs: (sh_lhs_expr.Name name:x)
                      op: assign_op.Equal
                      rhs: 
                        {
                          (command_sub
                            left_token: (Token id:Id.Left_DollarParen val:'$(' span_id:88)
                            command_list: 
                              (command.CommandList
                                children: [
                                  (C {(sed)} {(-ne)} 
                                    {(SQ (Token id:Id.Lit_Chars val:'s/.*{ "' span_id:94)) 
                                      ($ Id.VSub_DollarName '$base') (SQ (Token id:Id.Lit_Chars val:'", \\(cmd_[^, ]*\\).*/' span_id:98)) ($ Id.VSub_DollarName '$base') 
                                      (SQ (Token id:Id.Lit_Chars val:'\t\\1/p' span_id:102))
                                    } {(git.c)}
                                  )
                                ]
                              )
                          )
                        }
                      spids: [87]
                    )
                  ]
                )
                (command.If
                  arms: [
                    (if_arm
                      cond: [(C {(test)} {(-z)} {(DQ ($ Id.VSub_DollarName '$x'))})]
                      action: [
                        (C {(echo)} 
                          {
                            (DQ ($ Id.VSub_DollarName '$base') 
                              (' is builtin but not listed in git.c command list')
                            )
                          }
                        )
                        (command.ShAssignment
                          pairs: [
                            (assign_pair
                              lhs: (sh_lhs_expr.Name name:bad)
                              op: assign_op.Equal
                              rhs: {(1)}
                              spids: [131]
                            )
                          ]
                        )
                      ]
                      spids: [109 120]
                    )
                  ]
                )
                (command.ForEach
                  iter_name: sfx
                  iter_words: [{(sh)} {(perl)} {(py)}]
                  do_arg_iter: F
                  body: 
                    (command.DoGroup
                      children: [
                        (command.If
                          arms: [
                            (if_arm
                              cond: [
                                (C {(test)} {(-f)} 
                                  {
                                    (DQ ($ Id.VSub_DollarName '$builtin') (.) 
                                      ($ Id.VSub_DollarName '$sfx')
                                    )
                                  }
                                )
                              ]
                              action: [
                                (C {(echo)} 
                                  {
                                    (DQ ($ Id.VSub_DollarName '$base') (' is builtin but ') 
                                      ($ Id.VSub_DollarName '$builtin') (.) ($ Id.VSub_DollarName '$sfx') (' still exists')
                                    )
                                  }
                                )
                                (command.ShAssignment
                                  pairs: [
                                    (assign_pair
                                      lhs: (sh_lhs_expr.Name name:bad)
                                      op: assign_op.Equal
                                      rhs: {(1)}
                                      spids: [182]
                                    )
                                  ]
                                )
                              ]
                              spids: [154 167]
                            )
                          ]
                        )
                      ]
                    )
                )
              ]
            )
        )
        (command.ControlFlow
          token: (Token id:Id.ControlFlow_Exit val:exit span_id:195)
          arg_word: {($ Id.VSub_DollarName '$bad')}
        )
      ]
    )
  ]
  negated: F
)