[strong] cache strong object literal maps

[strong] cache strong object literal maps

Also, add more literal tests.

R=dslomov@chromium.org
BUG=v8:3956
LOG=N

Committed: https://crrev.com/65bea197ee8a4f04746e0a57f574499817c9b0da
Cr-Commit-Position: refs/heads/master@{#28579}

[arv (Not doing code reviews), 2015-05-21 13:09:54]

arv@chromium.org changed reviewers:
+ arv@chromium.org

[arv (Not doing code reviews), 2015-05-21 13:09:55]

LGTM

https://codereview.chromium.org/1145213005/diff/1/test/mjsunit/strong/literal...
File test/mjsunit/strong/literals.js (right):

https://codereview.chromium.org/1145213005/diff/1/test/mjsunit/strong/literal...
test/mjsunit/strong/literals.js:105: // TODO(rossberg): teach strongness to
FastCloneShallowArrayStub
Also, spread in arrays literals. It will have the same issue afaict.

[rossberg, 2015-05-21 17:05:09]

https://codereview.chromium.org/1145213005/diff/1/test/mjsunit/strong/literal...
File test/mjsunit/strong/literals.js (right):

https://codereview.chromium.org/1145213005/diff/1/test/mjsunit/strong/literal...
test/mjsunit/strong/literals.js:105: // TODO(rossberg): teach strongness to
FastCloneShallowArrayStub
On 2015/05/21 13:09:55, arv wrote:
> Also, spread in arrays literals. It will have the same issue afaict.

Done.

[Dmitry Lomov (no reviews), 2015-05-21 17:12:15]

lgtm

[rossberg, 2015-05-21 17:18:28]

The CQ bit was checked by rossberg@chromium.org

[rossberg, 2015-05-21 17:18:28]

The patchset sent to the CQ was uploaded after l-g-t-m from arv@chromium.org
Link to the patchset: https://codereview.chromium.org/1145213005/#ps20001
(title: "Comment")

[commit-bot: I haz the power, 2015-05-21 17:18:53]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1145213005/20001

[commit-bot: I haz the power, 2015-05-21 18:19:18]

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

[commit-bot: I haz the power, 2015-05-21 18:19:19]

Try jobs failed on following builders:
  v8_linux_dbg on tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_linux_dbg/builds/5040)

[rossberg, 2015-05-22 10:16:01]

The CQ bit was checked by rossberg@chromium.org

[rossberg, 2015-05-22 10:16:02]

The patchset sent to the CQ was uploaded after l-g-t-m from
dslomov@chromium.org, arv@chromium.org
Link to the patchset: https://codereview.chromium.org/1145213005/#ps40001
(title: "Fix map comparison")

[commit-bot: I haz the power, 2015-05-22 10:16:15]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1145213005/40001

[commit-bot: I haz the power, 2015-05-22 10:51:56]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2015-05-22 10:52:12]

Patchset 3 (id:??) landed as
https://crrev.com/65bea197ee8a4f04746e0a57f574499817c9b0da
Cr-Commit-Position: refs/heads/master@{#28579}