X87: [strong] Refactor ObjectStrength into a replacement for strong boolean args

X87:  [strong] Refactor ObjectStrength into a replacement for strong boolean args

port dd8544495109804c632bfbcefc3c5c701e0a8c43 (r28839)

original commit message:

    Boolean "is_strong" parameters have begun to proliferate across areas where
    strong mode semantics are different. This CL repurposes the existing
    ObjectStrength enum as a replacement for them.

BUG=
R=weiliang.lin@intel.com

Committed: https://chromium.googlesource.com/v8/v8/+/7e59d2603fc12fac615f3ae2d5197a52191ee99d

[chunyang.dai, 2015-06-11 08:44:04]

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

[chunyang.dai, 2015-06-11 08:44:05]

PTAL

[Weiliang, 2015-06-11 09:02:01]

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

[Weiliang, 2015-06-11 09:02:01]

lgtm

[commit-bot: I haz the power, 2015-06-11 09:02:10]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1173973002/1

[commit-bot: I haz the power, 2015-06-11 09:36:47]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-06-11 09:36:47]

Try jobs failed on following builders:
  v8_linux64_avx2_rel on tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_linux64_avx2_rel/builds/...)
  v8_linux64_rel on tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_linux64_rel/builds/6622)

[commit-bot: I haz the power, 2015-06-11 15:57:24]

Patchset 1 (id:??) landed as
https://crrev.com/7e59d2603fc12fac615f3ae2d5197a52191ee99d
Cr-Commit-Position: refs/heads/master@{#28952}

[chunyang.dai, 2015-06-11 15:57:33]

Committed patchset #1 (id:1) manually as
7e59d2603fc12fac615f3ae2d5197a52191ee99d (presubmit successful).