[deoptimizer] Support materialization of ContextExtension.

[deoptimizer] Support materialization of ContextExtension.

This adds support to the deoptimizer to materialize ContextExtension
objects that have been de-materialized by escape analysis. This is
follow-up to the inline allocation of such objects during the create
lowering phase (i.e. JSCreateWithContext and JSCreateCatchContext).

R=bmeurer@chromium.org
TEST=mjsunit/regress/regress-crbug-644245
BUG=chromium:644245
Committed: https://crrev.com/9984d6f689eb722363efa86f34522f2dc5e3bbc5
Cr-Commit-Position: refs/heads/master@{#39270}

[Michael Starzinger, 2016-09-08 08:38:13]

mstarzinger@chromium.org changed reviewers:
+ jochen@chromium.org

[Michael Starzinger, 2016-09-08 08:38:23]

The CQ bit was checked by mstarzinger@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-09-08 08:38:31]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[Benedikt Meurer, 2016-09-08 08:51:15]

lgtm

[commit-bot: I haz the power, 2016-09-08 09:17:15]

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

[commit-bot: I haz the power, 2016-09-08 09:17:16]

Dry run: This issue passed the CQ dry run.

[jochen (gone - plz use gerrit), 2016-09-08 09:24:53]

lgtm

[Michael Starzinger, 2016-09-08 10:30:56]

The CQ bit was checked by mstarzinger@chromium.org

[commit-bot: I haz the power, 2016-09-08 10:31:02]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-09-08 10:33:12]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-09-08 10:33:23]

Description was changed from

==========
[deoptimizer] Support materialization of ContextExtension.

This adds support to the deoptimizer to materialize ContextExtension
objects that have been de-materialized by escape analysis. This is
follow-up to the inline allocation of such objects during the create
lowering phase (i.e. JSCreateWithContext and JSCreateCatchContext).

R=bmeurer@chromium.org
TEST=mjsunit/regress/regress-crbug-644245
BUG=chromium:644245
==========

to

==========
[deoptimizer] Support materialization of ContextExtension.

This adds support to the deoptimizer to materialize ContextExtension
objects that have been de-materialized by escape analysis. This is
follow-up to the inline allocation of such objects during the create
lowering phase (i.e. JSCreateWithContext and JSCreateCatchContext).

R=bmeurer@chromium.org
TEST=mjsunit/regress/regress-crbug-644245
BUG=chromium:644245

Committed: https://crrev.com/9984d6f689eb722363efa86f34522f2dc5e3bbc5
Cr-Commit-Position: refs/heads/master@{#39270}
==========

[commit-bot: I haz the power, 2016-09-08 10:33:24]

Patchset 1 (id:??) landed as
https://crrev.com/9984d6f689eb722363efa86f34522f2dc5e3bbc5
Cr-Commit-Position: refs/heads/master@{#39270}