X87: HydrogenCodeStubs consume stack arguments via descriptor.

X87: HydrogenCodeStubs consume stack arguments via descriptor.

port 3334b830a512eda1f8eed678a0e6fda52b23472a (r20813).

original commit message:

    HydrogenCodeStubs consume stack arguments via descriptor.

    All of this is controlled by the CallDescriptor. It's simply the case
    that if you specify less registers than the function arity calls for,
    the rest are assumed to be on the stack.

    Bailout handlers accept these constant stack arguments too.

BUG=

Committed: https://crrev.com/1359017f8089d68a000535b70f74eb926e9e20e9
Cr-Commit-Position: refs/heads/master@{#29836}

[chunyang.dai, 2015-07-24 09:27:49]

chunyang.dai@intel.com changed reviewers:
+ weiliang.lin@intel.com

[chunyang.dai, 2015-07-24 09:27:50]

PTAL

[Weiliang, 2015-07-24 09:32:20]

The CQ bit was checked by weiliang.lin@intel.com

[Weiliang, 2015-07-24 09:32:20]

lgtm

[commit-bot: I haz the power, 2015-07-24 09:32:27]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1258553002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1258553002/1

[commit-bot: I haz the power, 2015-07-24 09:57:45]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-07-24 09:57:59]

Patchset 1 (id:??) landed as
https://crrev.com/1359017f8089d68a000535b70f74eb926e9e20e9
Cr-Commit-Position: refs/heads/master@{#29836}