$6cc1cfb5 eval-scope-optimization.js:12:1
  Registers: 7
  Blocks:    1
  Constants:
    [0] = Undefined

block0:
  [   0] GetGlobal dst:reg6, `outer`
  [  18] Call dst:reg5, callee:reg6, this_value:Undefined, outer
  [  38] End value:reg5


outer$6201e926 eval-scope-optimization.js:9:5
  Registers: 7
  Blocks:    1
  Constants:
    [0] = Undefined
    [1] = Int32(42)

block0:
  [   0] CreateVariable `inner`, is_immutable:false, is_global:false, is_strict:false
  [  10] InitializeVariableBinding `inner`, src:Undefined
  [  28] NewFunction dst:reg5, shared_function_data_index:0
  [  40] SetVariableBinding `inner`, src:reg5
  [  58] GetGlobal dst:reg6, `Number`
  [  70] CallConstruct dst:reg5, callee:reg6, Number, arguments:[Int32(42)]
  [  90] Return value:reg5