Issue #572: make kernel warn configurable #246

Job	Run time
test (ubuntu, 2.7, false)	4m 33s
test (ubuntu, 3.0, false)	4m 21s
test (ubuntu, 3.1, false)	4m 17s
test (ubuntu, 3.2, false)	4m 16s
test (ubuntu, 3.3, false)	4m 18s
test (macos, 2.7, false)	4m 47s
test (macos, 3.0, false)	4m 18s
test (macos, 3.1, false)	4m 19s
test (macos, 3.2, false)	4m 26s
test (macos, 3.3, false)	4m 35s
test (macos, truffleruby-head, true)	5m 36s
test (ubuntu, truffleruby-head, true)	4m 42s
test (ubuntu, jruby, true)	4m 48s
test (ubuntu, head, true)	4m 18s
	1h 3m 34s

Provide feedback