V1.10.x and stealth add v2 features #419

Job	Run time
test_matrix (ubuntu, 2.5)	26s
test_matrix (ubuntu, 2.6)	25s
test_matrix (ubuntu, 2.7)	24s
test_matrix (ubuntu, 3.0)	15s
test_matrix (ubuntu, 3.1)	15s
test_matrix (ubuntu, 3.2)	10s
test_matrix (ubuntu, 3.3)	11s
test_matrix (ubuntu, head)	16s
test_matrix (ubuntu, truffleruby)	54s
test_matrix (ubuntu, truffleruby-head)	49s
test_matrix (ubuntu, jruby)	55s
test_matrix (ubuntu, jruby-head)	50s
test_matrix (macos, 2.5)	51s
test_matrix (macos, 2.6)	55s
test_matrix (macos, 2.7)	59s
test_matrix (macos, 3.0)	25s
test_matrix (macos, 3.1)	53s
test_matrix (macos, 3.2)	24s
test_matrix (macos, 3.3)	37s
test_matrix (macos, head)	25s
test_matrix (macos, truffleruby)	1m 13s
test_matrix (macos, truffleruby-head)	2m 34s
test_matrix (macos, jruby)	1m 20s
test_matrix (macos, jruby-head)	2m 17s
finish	0s
	18m 43s

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