X87: [turbofan] Add basic support for calling to (a subset of) C functions.

X87: [turbofan] Add basic support for calling to (a subset of) C functions.

port a58ba8d80179bf5b6b7245590c82e47fda8c8a5e (r29279).

original commit message:

    This introduces some initial building blocks for calling out to
    C/C++ functions directly from TurboFan generated code objects.

BUG=

Committed: https://crrev.com/4ed8444e73838e244bb04bd52ecd7cb450cf577d
Cr-Commit-Position: refs/heads/master@{#29408}

[chunyang.dai, 2015-06-30 09:17:07]

Patchset #1 (id:1) has been deleted

[chunyang.dai, 2015-06-30 09:17:21]

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

[chunyang.dai, 2015-06-30 09:17:21]

PTAL

[Weiliang, 2015-07-01 11:01:49]

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

[Weiliang, 2015-07-01 11:01:49]

lgtm

[commit-bot: I haz the power, 2015-07-01 11:01:59]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1214903007/20001

[commit-bot: I haz the power, 2015-07-01 11:31:53]

Committed patchset #1 (id:20001)

[commit-bot: I haz the power, 2015-07-01 11:32:08]

Patchset 1 (id:??) landed as
https://crrev.com/4ed8444e73838e244bb04bd52ecd7cb450cf577d
Cr-Commit-Position: refs/heads/master@{#29408}