$54bb0ec1 tagged-template-if-register-order.js:2:1
  Registers: 10
  Blocks:    3
  Constants:
    [0] = String("use strict")
    [1] = String("hello")
    [2] = Null
    [3] = Undefined

block0:
  [   0] GetGlobal dst:reg5, `String`
  [  18] GetById dst:reg6, base:reg5, `raw` (String.raw)
  [  38] GetTemplateObject dst:reg7, strings:[String("hello"), String("hello")]
  [  58] Call dst:reg8, callee:reg6, this_value:reg5, arguments:[reg7]
  [  80] InitializeLexicalBinding `x`, src:reg8
  [  98] InitializeLexicalBinding `y`, src:Null
  [  b0] GetGlobal dst:reg8, `x`
  [  c8] StrictlyEquals dst:reg6, lhs:reg8, rhs:String("hello")
  [  d8] Mov dst:reg8, src:Undefined
  [  e8] JumpFalse condition:reg6, target:block2

block1:
  [  f8] GetGlobal dst:reg5, `x`
  [ 110] GetById dst:reg9, base:reg5, `toUpperCase` (x.toUpperCase)
  [ 130] Call dst:reg7, callee:reg9, this_value:reg5, x.toUpperCase
  [ 150] SetGlobal `y`, src:reg7
  [ 168] Mov dst:reg8, src:reg7

block2:
  [ 178] End value:reg8