$fc23251f switch-scoping.js:15:1
  Registers: 11
  Blocks:    1
  Constants:
    [0] = Undefined
    [1] = Int32(1)
    [2] = Int32(2)

block0:
  [   0] GetGlobal dst:reg6, `console`
  [  18] GetById dst:reg7, base:reg6, `log` (console.log)
  [  38] GetGlobal dst:reg9, `switchWithBlockDecl`
  [  50] Call dst:reg8, callee:reg9, this_value:Undefined, switchWithBlockDecl, arguments:[Int32(1)]
  [  78] Call dst:reg5, callee:reg7, this_value:reg6, console.log, arguments:[reg8]
  [  a0] GetGlobal dst:reg6, `console`
  [  b8] GetById dst:reg8, base:reg6, `log` (console.log)
  [  d8] GetGlobal dst:reg10, `switchWithBlockDecl`
  [  f0] Call dst:reg9, callee:reg10, this_value:Undefined, switchWithBlockDecl, arguments:[Int32(2)]
  [ 118] Call dst:reg7, callee:reg8, this_value:reg6, console.log, arguments:[reg9]
  [ 140] End value:reg7


switchWithBlockDecl$2b5ecfcd switch-scoping.js:2:5
  Registers: 7
  Blocks:    7
  Locals:    result~0
  Constants:
    [0] = Undefined
    [1] = Int32(1)
    [2] = Int32(2)
    [3] = String("one")
    [4] = String("two")

block0:
  [   0] GetLexicalEnvironment dst:reg4
  [   8] Mov dst:result~0, src:Undefined
  [  18] CreateLexicalEnvironment dst:reg5, parent:reg4, capacity:0
  [  28] CreateMutableBinding environment:reg5, `a`, can_be_deleted:false
  [  38] CreateMutableBinding environment:reg5, `b`, can_be_deleted:false

block1:
  [  48] JumpStrictlyEquals lhs:Int32(1), rhs:arg0, true_target:block4, false_target:block2

block2:
  [  60] JumpStrictlyEquals lhs:Int32(2), rhs:arg0, true_target:block5, false_target:block3

block3:
  [  78] Jump target:block6

block4:
  [  80] InitializeLexicalBinding `a`, src:String("one")
  [  98] NewFunction dst:reg6, shared_function_data_index:0 (result)
  [  b0] Mov dst:result~0, src:reg6
  [  c0] Jump target:block6

block5:
  [  c8] InitializeLexicalBinding `b`, src:String("two")
  [  e0] NewFunction dst:reg6, shared_function_data_index:1 (result)
  [  f8] Mov dst:result~0, src:reg6

block6:
  [ 108] SetLexicalEnvironment environment:reg4
  [ 110] Call dst:reg5, callee:result~0, this_value:Undefined, result
  [ 130] Return value:reg5


result$9ed940b6 switch-scoping.js:6:22
  Registers: 6
  Blocks:    1

block0:
  [   0] GetBinding dst:reg5, `a`
  [  18] Return value:reg5


result$78d6c64d switch-scoping.js:10:22
  Registers: 6
  Blocks:    1

block0:
  [   0] GetBinding dst:reg5, `b`
  [  18] Return value:reg5


"one"
"two"