Fix block-for test

Fix block-for test

The test didn't call the test function.

BUG=v8:3932
LOG=N
TBR=ulan@chromium.org

Committed: https://crrev.com/4b830859b7a529fe05e8ff807e4090c616d26c94
Cr-Commit-Position: refs/heads/master@{#26927}

[arv (Not doing code reviews), 2015-02-27 20:47:29]

The CQ bit was checked by arv@chromium.org

[commit-bot: I haz the power, 2015-02-27 20:48:18]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/964993002/1

[commit-bot: I haz the power, 2015-02-27 20:48:19]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-02-27 20:48:20]

No LGTM from a valid reviewer yet. Only full committers are accepted.
Even if an LGTM may have been provided, it was from a non-committer,
_not_ a full super star committer.
See http://www.chromium.org/getting-involved/become-a-committer
Note that this has nothing to do with OWNERS files.

[arv (Not doing code reviews), 2015-02-27 20:56:49]

arv@chromium.org changed reviewers:
+ ulan@chromium.org

[arv (Not doing code reviews), 2015-02-27 20:56:52]

The CQ bit was checked by arv@chromium.org

[commit-bot: I haz the power, 2015-02-27 20:57:18]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/964993002/1

[commit-bot: I haz the power, 2015-02-27 21:22:45]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-02-27 21:23:01]

Patchset 1 (id:??) landed as
https://crrev.com/4b830859b7a529fe05e8ff807e4090c616d26c94
Cr-Commit-Position: refs/heads/master@{#26927}