convert compile functions to use maybe

convert compile functions to use maybe

BUG=v8:3929
LOG=y

Committed: https://crrev.com/95c1f5ddc87e60906e47db633898aec685a50252
Cr-Commit-Position: refs/heads/master@{#27013}

[Sven Panne, 2015-03-05 10:41:48]

svenpanne@chromium.org changed reviewers:
+ svenpanne@chromium.org

[Sven Panne, 2015-03-05 10:41:49]

svenpanne@chromium.org changed reviewers:
+ svenpanne@chromium.org

[Sven Panne, 2015-03-05 10:41:49]

lgtm

[Sven Panne, 2015-03-05 10:41:49]

lgtm

lgtm

[dcarney, 2015-03-05 10:42:21]

The CQ bit was checked by dcarney@chromium.org

[commit-bot: I haz the power, 2015-03-05 10:49:52]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/980613002/60001

[commit-bot: I haz the power, 2015-03-05 11:30:32]

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

[commit-bot: I haz the power, 2015-03-05 11:30:33]

Try jobs failed on following builders:
  v8_linux_chromium_gn_rel on tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_linux_chromium_gn_rel/bu...)

[dcarney, 2015-03-05 11:38:12]

The CQ bit was checked by dcarney@chromium.org

[dcarney, 2015-03-05 11:38:12]

The patchset sent to the CQ was uploaded after l-g-t-m from
svenpanne@chromium.org
Link to the patchset: https://codereview.chromium.org/980613002/#ps80001 (title:
"try fix clang")

[commit-bot: I haz the power, 2015-03-05 11:38:41]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/980613002/80001

[commit-bot: I haz the power, 2015-03-05 12:26:13]

Committed patchset #5 (id:80001)

[commit-bot: I haz the power, 2015-03-05 12:26:31]

Patchset 5 (id:??) landed as
https://crrev.com/95c1f5ddc87e60906e47db633898aec685a50252
Cr-Commit-Position: refs/heads/master@{#27013}