Auto correct for UnusedLet does not play nicely with heredocs

[backus]

Reproduction:

$ cat repro_spec.rb
RSpec.describe 'reproduction' do
  let(:foo) { <<-EOM }
    this is
    a heredoc
  EOM

  it 'does not use the heredoc' do
  end
end

$ bundle exec rspec repro_spec.rb
Randomized with seed 22964
.

Finished in 0.00073 seconds (files took 0.59494 seconds to load)
1 example, 0 failures

Randomized with seed 22964

$ bundle exec bin/rspectre --rspec='repro_spec.rb' --auto-correct

$ cat repro_spec.rb
RSpec.describe 'reproduction' do

    this is
    a heredoc
  EOM

  it 'does not use the heredoc' do
  end
end

[dgollahon]

Thanks for the report, @backus. I'll check it out soon.

[backus]

🎈!