Fix when highlights contain multibyte characters

[osyo-manga]

Summary

When multibyte characters were included in the output results, they were not highlighted in the correct position.

Expected behavior

• I'd like to see multibyte characters highlighted by their position

hash.rb:4:3: C: [Correctable] Layout/HashAlignment: Align the keys of a hash literal if they span more than one line.
  'あああああ'=>1,
  ^^^^^^^^^^^^^^^
hash.rb:4:10: C: [Correctable] Layout/SpaceAroundOperators: Surrounding space missing for operator =>.
  'あああああ'=>1,
              ^^
hash.rb:5:14: C: [Correctable] Layout/SpaceAfterComma: Space missing after comma.
  'いいいい' => 2,"うううう" =>3,
                 ^
hash.rb:5:15: C: [Correctable] Style/StringLiterals: Prefer single-quoted strings when you don't need string interpolation or special symbols.
  'いいいい' => 2,"うううう" =>3,
                  ^^^^^^^^^^
hash.rb:5:22: C: [Correctable] Layout/SpaceAroundOperators: Surrounding space missing for operator =>.
  'いいいい' => 2,"うううう" =>3,
                             ^^
hash.rb:5:25: C: [Correctable] Style/TrailingCommaInHashLiteral: Avoid comma after the last item of a hash.
  'いいいい' => 2,"うううう" =>3,
                                ^

Actual behavior

• However, the highlight is not positioned correctly

hash.rb:4:3: C: [Correctable] Layout/HashAlignment: Align the keys of a hash literal if they span more than one line.
  'あああああ'=>1,
  ^^^^^^^^^^
hash.rb:4:10: C: [Correctable] Layout/SpaceAroundOperators: Surrounding space missing for operator =>.
  'あああああ'=>1,
         ^^
hash.rb:5:14: C: [Correctable] Layout/SpaceAfterComma: Space missing after comma.
  'いいいい' => 2,"うううう" =>3,
             ^
hash.rb:5:15: C: [Correctable] Style/StringLiterals: Prefer single-quoted strings when you don't need string interpolation or special symbols.
  'いいいい' => 2,"うううう" =>3,
              ^^^^^^
hash.rb:5:22: C: [Correctable] Layout/SpaceAroundOperators: Surrounding space missing for operator =>.
  'いいいい' => 2,"うううう" =>3,
                     ^^
hash.rb:5:25: C: [Correctable] Style/TrailingCommaInHashLiteral: Avoid comma after the last item of a hash.
  'いいいい' => 2,"うううう" =>3,
                        ^

Steps to reproduce the problem

$ cat hash.rb
# frozen_string_literal: true

{
  'あああああ'=>1,
  'いいいい' => 2,"うううう" =>3,
}

$ rubocop hash.rb
Inspecting 1 file
C

Offenses:

hash.rb:4:3: C: [Correctable] Layout/HashAlignment: Align the keys of a hash literal if they span more than one line.
  'あああああ'=>1,
  ^^^^^^^^^^
hash.rb:4:10: C: [Correctable] Layout/SpaceAroundOperators: Surrounding space missing for operator =>.
  'あああああ'=>1,
         ^^
hash.rb:5:14: C: [Correctable] Layout/SpaceAfterComma: Space missing after comma.
  'いいいい' => 2,"うううう" =>3,
             ^
hash.rb:5:15: C: [Correctable] Style/StringLiterals: Prefer sFix when highlights contain multibyte charactersingle-quoted strings when you don't need string interpolation or special symbols.
  'いいいい' => 2,"うううう" =>3,
              ^^^^^^
hash.rb:5:22: C: [Correctable] Layout/SpaceAroundOperators: Surrounding space missing for operator =>.
  'いいいい' => 2,"うううう" =>3,
                     ^^
hash.rb:5:25: C: [Correctable] Style/TrailingCommaInHashLiteral: Avoid comma after the last item of a hash.
  'いいいい' => 2,"うううう" =>3,
                        ^

1 file inspected, 6 offenses detected, 6 offenses auto-correctable
$

Ref: rubocop/rubocop-jp#43

---

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[koic]

This highlight fix looks brilliant! Thanks!

[osyo-manga]

Tahnks for merge :)