$e6445d4a eval-same-function.js:10:1
  Registers: 7
  Blocks:    1
  Constants:
    [0] = Undefined

block0:
  [   0] GetLexicalEnvironment dst:reg4
  [   8] GetGlobal dst:reg6, `foo`
  [  20] Call dst:reg5, callee:reg6, this_value:Undefined, foo
  [  40] End value:reg5


foo$a4ff2c4f eval-same-function.js:6:9
  Registers: 8
  Blocks:    1
  Constants:
    [0] = String("var x = 1")
    [1] = Undefined
    [2] = Int32(42)

block0:
  [   0] GetLexicalEnvironment dst:reg4
  [   8] CreateArguments is_immutable:false
  [  18] GetCalleeAndThisFromEnvironment callee:reg6, this_value:reg7, `eval`
  [  30] CallDirectEval dst:reg5, callee:reg6, this_value:reg7, eval, arguments:[String("var x = 1")]
  [  58] GetBinding dst:reg6, `Number`
  [  70] CallConstruct dst:reg5, callee:reg6, Number, arguments:[Int32(42)]
  [  90] Return value:reg5


eval$3c61584c line 1, column 1
  Registers: 5
  Blocks:    1
  Constants:
    [0] = Int32(1)
    [1] = Undefined

block0:
  [   0] GetLexicalEnvironment dst:reg4
  [   8] SetLexicalBinding `x`, src:Int32(1)
  [  20] End value:Undefined