Tests that DFG NewArrayBuffer works when having a bad time.

On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".


PASS foo()[0] is "foo" on all iterations including after DFG tier-up.
PASS foo()[1] is 42 on all iterations including after DFG tier-up.
PASS foo()[2] is 23.5 on all iterations including after DFG tier-up.
PASS successfullyParsed is true

TEST COMPLETE