Pass new identity attribute to preserve argument order #199

Job	Run time
test-ubuntu-ruby (ruby-head, 11-3.0)	2m 41s
test-ubuntu-ruby (ruby-head, 12-master)	3m 2s
test-ubuntu-ruby (ruby-head, 13-master)	2m 34s
test-ubuntu-ruby (ruby-head, 14-master)	3m 3s
test-ubuntu-ruby (ruby-head, 15-master)	2m 34s
test-ubuntu-ruby (3.2, 11-3.0)	1m 50s
test-ubuntu-ruby (3.2, 12-master)	1m 18s
test-ubuntu-ruby (3.2, 13-master)	1m 34s
test-ubuntu-ruby (3.2, 14-master)	1m 19s
test-ubuntu-ruby (3.2, 15-master)	1m 36s
test-ubuntu-ruby (3.1, 11-3.0)	1m 43s
test-ubuntu-ruby (3.1, 12-master)	2m 22s
test-ubuntu-ruby (3.1, 13-master)	2m 20s
test-ubuntu-ruby (3.1, 14-master)	2m 3s
test-ubuntu-ruby (3.1, 15-master)	1m 44s
test-ubuntu-ruby (3.0, 11-3.0)	1m 48s
test-ubuntu-ruby (3.0, 12-master)	1m 47s
test-ubuntu-ruby (3.0, 13-master)	1m 44s
test-ubuntu-ruby (3.0, 14-master)	1m 40s
test-ubuntu-ruby (3.0, 15-master)	2m 8s
	40m 50s

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