This tests that speculation recovery of destructive additions on unboxed integers works. On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". PASS destructiveAddForBoxedInteger({x:1}, 2, 4) is 9 PASS destructiveAddForBoxedInteger({x:2147483647}, 2, 4) is 2147483655 PASS destructiveAddForBoxedInteger({x:2}, 2147483647, 4) is 4294967300 PASS destructiveAddForBoxedInteger({x:2147483647}, 2147483647, 4) is 6442450945 PASS destructiveAddForBoxedInteger({x:1}, 2, 2147483647) is 2147483652 PASS successfullyParsed is true TEST COMPLETE