X87: [interpreter] Add basic framework for bytecode handler code generation.

X87: [interpreter] Add basic framework for bytecode handler code generation.

port 7877c4e0c77b5c2b97678406eab7e9ad6eba4a4d (r29814).

original commit message:

    Adds basic support for generation of interpreter bytecode handler code
    snippets. The InterpreterAssembler class exposes a set of low level,
    interpreter specific operations which can be used to build a Turbofan
    graph. The Interpreter class generates a bytecode handler snippet for
    each bytecode by assembling operations using an InterpreterAssembler.

    Currently only two simple bytecodes are supported: LoadLiteral0 and Return.

BUG=

Committed: https://crrev.com/c4cd117e2d12c460642591c7a9314449ebd8e625
Cr-Commit-Position: refs/heads/master@{#29838}

[chunyang.dai, 2015-07-24 09:28:37]

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

[chunyang.dai, 2015-07-24 09:28:37]

PTAL

[Weiliang, 2015-07-24 09:32:35]

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

[Weiliang, 2015-07-24 09:32:35]

lgtm

[commit-bot: I haz the power, 2015-07-24 09:32:47]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1256783002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1256783002/20001

[commit-bot: I haz the power, 2015-07-24 10:03:19]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-07-24 10:03:34]

Patchset 2 (id:??) landed as
https://crrev.com/c4cd117e2d12c460642591c7a9314449ebd8e625
Cr-Commit-Position: refs/heads/master@{#29838}