| Tests that defining a setter on the Array prototype works with ArrayPush. | |
| On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". | |
| PASS foo().join(",") is "0,1,2,,4" on all iterations including after DFG tier-up. | |
| PASS ouches is numRuns | |
| PASS successfullyParsed is true | |
| TEST COMPLETE | |