X87: [interpreter]: Changes to interpreter builtins for accumulator and register file registers.

X87: [interpreter]: Changes to interpreter builtins for accumulator and register file registers.

port 00df60d1c6943a10fb5ca84fce2c017dcd2001f5 (r30219).

original commit message:

    Makes the following modifications to the interpreter builtins and
    InterpreterAssembler:
     - Adds an accumulator register and initializes it to undefined()
     - Adds a register file pointer register and use it instead of FramePointer to
       access registers
     - Modifies builtin to support functions with 0 regiters in the register file
     - Modifies builtin to Call rather than TailCall to first bytecode handler.

BUG=

Committed: https://crrev.com/8116f95c965e31cbd9df1004ece619d252679a69
Cr-Commit-Position: refs/heads/master@{#30289}

[chunyang.dai, 2015-08-21 08:50:21]

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

[chunyang.dai, 2015-08-21 08:50:21]

PTAL

[Weiliang, 2015-08-21 09:40:49]

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

[Weiliang, 2015-08-21 09:40:49]

lgtm

[commit-bot: I haz the power, 2015-08-21 09:40:59]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1304593002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1304593002/1

[commit-bot: I haz the power, 2015-08-21 10:14:56]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-08-21 10:15:14]

Patchset 1 (id:??) landed as
https://crrev.com/8116f95c965e31cbd9df1004ece619d252679a69
Cr-Commit-Position: refs/heads/master@{#30289}