Optimize escape_single_quoted_newlines #2493

Job	Run time
javascript_test	29s
lint	1m 11s
mongodb_test (gemfiles/mongoid_6.gemfile)	1m 49s
postgres_test (gemfiles/rails_master.gemfile, 3.3, 1)	1m 41s
mongodb_test (gemfiles/mongoid_7.gemfile)	1m 48s
postgres_test (gemfiles/rails_7.1_postgresql.gemfile, 3.3)	1m 42s
system_tests	1m 13s
test (Gemfile, 3.2)	1m 18s
test (Gemfile, 2.7)	1m 34s
test (gemfiles/rails_7.0.gemfile, 3.1)	1m 34s
test (gemfiles/rails_master.gemfile, 3.2)	2m 3s
test (gemfiles/rails_7.0.gemfile, 3.2)	1m 32s
test (gemfiles/rails_7.1.gemfile, 3.3)	1m 35s
test (gemfiles/rails_master.gemfile, 3.3, 1)	2m 2s
test (gemfiles/rails_master.gemfile, 3.3, 1, 1)	2m 3s
	23m 34s

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