$e3bb9811 argument-variables.js:12:1
  Registers: 8
  Blocks:    1
  Constants:
    [0] = Undefined
    [1] = Int32(1)
    [2] = Int32(2)

block0:
  [   0] GetGlobal dst:reg6, `identity`
  [  18] Call dst:reg5, callee:reg6, this_value:Undefined, identity, arguments:[Int32(1)]
  [  40] GetGlobal dst:reg7, `swap`
  [  58] Call dst:reg6, callee:reg7, this_value:Undefined, swap, arguments:[Int32(1), Int32(2)]
  [  80] End value:reg6


identity$7176ad76 argument-variables.js:5:5
  Registers: 5
  Blocks:    1

block0:
  [   0] Return value:arg0


swap$0ff1f8d6 argument-variables.js:9:5
  Registers: 6
  Blocks:    1

block0:
  [   0] Add dst:reg5, lhs:arg1, rhs:arg0
  [  10] Return value:reg5