Fix timeout of test greedy.js

Fix timeout of test greedy.js


TEST=greedy.js no longer times out on x64 in debug mode

[Jakob Kummerow, 2011-05-10 16:18:05]

More boredom :-)

The combination of --gc-greedy and --verify-heap made greedy.js timeout on x64
in debug mode, regardless of how much actual work is being done in the test. 

If the whole point of the test is to test those two flags together, then this CL
is obviously a bad idea. But if we can live without --verify-heap, this fixes
the timeout. What do you think?

[Mads Ager (chromium), 2011-05-11 06:01:04]

Unfortunately the point of the test is the combination. gc-greedy forces gc very
often. That combined with heap verification helps ensure that we do not have
intermediate states where the heap is in an inconsistent state.

[Jakob Kummerow, 2011-05-11 11:03:28]

OK. Closing this CL for now. 

I did a --prof run on the greedy.js test, which didn't turn up any obvious
opportunities for optimizations. So making this not timeout will probably
require more work/investigation/discussion, and doesn't currently have priority.