#1142 but with an extra commit to ease reviewing the diff #1574

Job	Run time
specs (ubuntu, 3.0.6)	1m 3s
RuboCop	27s
specs (ubuntu, 3.1.4)	1m 6s
specs (ubuntu, 3.2.2)	58s
specs (ubuntu, 3.3.0)	57s
specs (macos, 3.0.6)	1m 11s
specs (macos, 3.1.4)	1m 8s
specs (macos, 3.2.2)	1m 13s
specs (macos, 3.3.0)	1m 45s
specs (windows, 3.0.6)	3m 18s
specs (windows, 3.1.4)	4m 8s
specs (windows, 3.2.2)	4m 15s
specs (windows, 3.3.0)	4m 24s
specs (ubuntu, 3.3.0, --enable-frozen-string-literal)	58s
	26m 51s

Provide feedback