[arm64] fix incorrect hole-checking logic in full-codegen

[arm64] fix incorrect debug hole-checking logic in full-codegen

BUG=v8:4159
LOG=N
R=arv@chromium.org

[caitp (gmail), 2015-06-02 17:09:22]

The CQ bit was checked by caitpotter88@gmail.com to run a CQ dry run

[commit-bot: I haz the power, 2015-06-02 17:09:51]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1157543007/1

[commit-bot: I haz the power, 2015-06-02 17:09:52]

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

[commit-bot: I haz the power, 2015-06-02 17:09:54]

Dry run: 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.

[caitp (gmail), 2015-06-02 17:10:26]

On 2015/06/02 17:09:54, commit-bot: I haz the power wrote:
> Dry run: 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.

aww :(

[Rodolph Perfetta (ARM), 2015-06-02 17:58:46]

rodolph.perfetta@arm.com changed reviewers:
+ rodolph.perfetta@arm.com

[Rodolph Perfetta (ARM), 2015-06-02 17:58:46]

lgtm

[caitp (gmail), 2015-06-02 19:30:36]

On 2015/06/02 17:58:46, Rodolph Perfetta (ARM) wrote:
> lgtm

This change doesn't solve the nosnap failures from
https://codereview.chromium.org/1127063003/, but it does fix the non-nosnap
failures for arm64, so I think this is desirable anyways.

[caitp (gmail), 2015-06-02 19:30:50]

The CQ bit was checked by caitpotter88@gmail.com

[commit-bot: I haz the power, 2015-06-02 19:31:22]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1157543007/1

[commit-bot: I haz the power, 2015-06-02 19:34:00]

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

[commit-bot: I haz the power, 2015-06-02 19:34:01]

Try jobs failed on following builders:
  v8_presubmit on tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_presubmit/builds/3125)