MIPS: Skip the mapcheck on the global object since the global proxy and cell are already checked (o…

MIPS: Skip the mapcheck on the global object since the global proxy and cell are already checked (or the global object map for contextual global loads).

Port 6af7ca6be4cd768b3326f0b8c32d4fbc3baa20c8

BUG=

Committed: https://crrev.com/b9eb8f1fb898ac8c701a2557f6514fb9744f810f
Cr-Commit-Position: refs/heads/master@{#26909}

[balazs.kilvady, 2015-02-26 17:45:18]

balazs.kilvady@imgtec.com changed reviewers:
+ akos.palfi@imgtec.com, danno@chromium.org, dusan.milosavljevic@imgtec.com,
gergely.kis@imgtec.com, paul.lind@imgtec.com, verwaest@chromium.org

[paul.l..., 2015-02-26 18:30:20]

lgtm

[balazs.kilvady, 2015-02-26 18:32:00]

The CQ bit was checked by balazs.kilvady@imgtec.com

[commit-bot: I haz the power, 2015-02-26 18:32:27]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/957393002/1

[commit-bot: I haz the power, 2015-02-26 18:53:30]

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

[commit-bot: I haz the power, 2015-02-26 18:53:30]

Try jobs failed on following builders:
  v8_linux_nodcheck_rel on tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_linux_nodcheck_rel/build...)

[balazs.kilvady, 2015-02-27 09:09:13]

The CQ bit was checked by balazs.kilvady@imgtec.com

[commit-bot: I haz the power, 2015-02-27 09:10:09]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/957393002/1

[commit-bot: I haz the power, 2015-02-27 09:15:32]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-02-27 09:15:59]

Patchset 1 (id:??) landed as
https://crrev.com/b9eb8f1fb898ac8c701a2557f6514fb9744f810f
Cr-Commit-Position: refs/heads/master@{#26909}