MIPS: Remove PropertyCell space.

MIPS: Remove PropertyCell space.

Port 16c8485a35efc36cf6ccd15185282d65412e1502

Original commit message:
Replaces StoreGlobalCell / LoadGlobalCell with NamedField variants that use write barriers.

BUG=

Committed: https://crrev.com/6142c7f8726bdf4a4ebc6246d7a18b1c9961c5b6
Cr-Commit-Position: refs/heads/master@{#27277}

[balazs.kilvady, 2015-03-18 12:57:42]

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

[dusmil.imgtec, 2015-03-18 14:31:24]

lgtm.

[balazs.kilvady, 2015-03-18 15:31:34]

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

[commit-bot: I haz the power, 2015-03-18 15:36:17]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1014293002/1

[commit-bot: I haz the power, 2015-03-18 16:05:26]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-03-18 16:05:47]

Patchset 1 (id:??) landed as
https://crrev.com/6142c7f8726bdf4a4ebc6246d7a18b1c9961c5b6
Cr-Commit-Position: refs/heads/master@{#27277}