$89d6cbb5 async-await.js:9:1
  Registers: 7
  Blocks:    1
  Constants:
    [0] = Undefined

block0:
  [   0] GetGlobal dst:reg6, `f`
  [  10] Call dst:reg5, callee:reg6, this_value:Undefined, f
  [  30] End value:reg5


f$5541cf89 async-await.js:7:5
  Registers: 10
  Blocks:    5
  Constants:
    [0] = Undefined
    [1] = Int32(42)
    [2] = Int32(1)

block0:
  [   0] Yield continuation_label:block1, value:Undefined

block1:
  [  10] GetGlobal dst:reg6, `Promise`
  [  20] GetById dst:reg7, base:reg6, `resolve` (Promise.resolve)
  [  38] Call dst:reg5, callee:reg7, this_value:reg6, Promise.resolve, arguments:[Int32(42)]
  [  60] Mov dst:reg7, src:reg0
  [  70] Await continuation_label:block2, argument:reg5

block2:
  [  80] Mov dst:reg7, src:reg0
  [  90] GetCompletionFields type_dst:reg6, value_dst:reg8, completion:reg7
  [  a0] JumpStrictlyEquals lhs:reg6, rhs:Int32(1), true_target:block3, false_target:block4

block3:
  [  b8] Yield value:reg8

block4:
  [  c8] Throw src:reg8