MIPS64: Remove the dependency of Zone on Isolate.

MIPS64: Remove the dependency of Zone on Isolate.

Port c7b09aac317dd810d29b82061973199b80363b65

Original commit message:
Along the way:
- Thread isolate parameter explicitly through code that used to
  rely on getting it from the zone.
- Canonicalize the parameter position of isolate and zone for
  affected code
- Change Hydrogen New<> instruction templates to automatically
  pass isolate

LOG=N
BUG=

Committed: https://crrev.com/10f3fe3ee3943001c4944dc96a4ce291241289e1
Cr-Commit-Position: refs/heads/master@{#26257}

[balazs.kilvady, 2015-01-23 18:47:12]

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

[paul.l..., 2015-01-23 19:03:50]

lgtm

[balazs.kilvady, 2015-01-23 19:04:31]

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

[commit-bot: I haz the power, 2015-01-23 19:05:04]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/875533002/1

[commit-bot: I haz the power, 2015-01-23 19:34:46]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-01-23 19:35:03]

Patchset 1 (id:??) landed as
https://crrev.com/10f3fe3ee3943001c4944dc96a4ce291241289e1
Cr-Commit-Position: refs/heads/master@{#26257}