Performance tweaks phase 3 #2225
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Now that RuboCop caches results, I decided to profile the memory against a cached run.
The change to progress formatter drops the memory usage of progress formatter and colorizable by 99% for a clean run against all of RuboCop.
before
99360 rubocop/lib/rubocop/formatter/colorizable.rb
50240 rubocop/lib/rubocop/formatter/progress_formatter.rb
after
880 rubocop/lib/rubocop/formatter/progress_formatter.rb
640 rubocop/lib/rubocop/formatter/colorizable.rb