Add new `Performance/RegexpMatch` cop by pocke · Pull Request #3824 · rubocop/rubocop

In Ruby 2.4, String#match? and Regexp#match? have been added. https://www.ruby-lang.org/en/news/2016/12/25/ruby-2-4-0-released/ https://bugs.ruby-lang.org/issues/8110 The methods are faster than ma...