[fullcodegen] Fix assert for operand stack depth tracking.

[fullcodegen] Fix assert for operand stack depth tracking.

This fixes a corner case that triggered an assert in full-codegens
operand stack depth tracking. We stop pushing operands if we overflow
the C-stack while iterating the AST. This makes the tracking go out of
sync before we fully returned from the tree traversal, at which point
the thrown RangeError will abort compilation.

R=ishell@chromium.org
TEST=mjsunit/regress/regress-crbug-589472
BUG=chromium:589472
LOG=n

Committed: https://crrev.com/3baa290264f8f37a184fa8959fc18cd09af9a84c
Cr-Commit-Position: refs/heads/master@{#34255}

[Igor Sheludko, 2016-02-24 15:48:16]

lgtm

[Michael Starzinger, 2016-02-24 15:49:03]

The CQ bit was checked by mstarzinger@chromium.org

[commit-bot: I haz the power, 2016-02-24 15:49:10]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1732903002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1732903002/20001

[commit-bot: I haz the power, 2016-02-24 15:54:26]

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

[commit-bot: I haz the power, 2016-02-24 15:54:27]

Try jobs failed on following builders:
  v8_linux_arm64_rel on tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_linux_arm64_rel/builds/1...)

[Michael Starzinger, 2016-02-24 16:20:11]

The CQ bit was checked by mstarzinger@chromium.org

[Michael Starzinger, 2016-02-24 16:20:11]

The patchset sent to the CQ was uploaded after l-g-t-m from ishell@chromium.org
Link to the patchset: https://codereview.chromium.org/1732903002/#ps40001
(title: "Skip for interpreter.")

[commit-bot: I haz the power, 2016-02-24 16:20:20]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1732903002/40001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1732903002/40001

[commit-bot: I haz the power, 2016-02-24 16:29:25]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2016-02-24 16:29:57]

Description was changed from

==========
[fullcodegen] Fix assert for operand stack depth tracking.

This fixes a corner case that triggered an assert in full-codegens
operand stack depth tracking. We stop pushing operands if we overflow
the C-stack while iterating the AST. This makes the tracking go out of
sync before we fully returned from the tree traversal, at which point
the thrown RangeError will abort compilation.

R=ishell@chromium.org
TEST=mjsunit/regress/regress-crbug-589472
BUG=chromium:589472
LOG=n
==========

to

==========
[fullcodegen] Fix assert for operand stack depth tracking.

This fixes a corner case that triggered an assert in full-codegens
operand stack depth tracking. We stop pushing operands if we overflow
the C-stack while iterating the AST. This makes the tracking go out of
sync before we fully returned from the tree traversal, at which point
the thrown RangeError will abort compilation.

R=ishell@chromium.org
TEST=mjsunit/regress/regress-crbug-589472
BUG=chromium:589472
LOG=n

Committed: https://crrev.com/3baa290264f8f37a184fa8959fc18cd09af9a84c
Cr-Commit-Position: refs/heads/master@{#34255}
==========

[commit-bot: I haz the power, 2016-02-24 16:29:58]

Patchset 3 (id:??) landed as
https://crrev.com/3baa290264f8f37a184fa8959fc18cd09af9a84c
Cr-Commit-Position: refs/heads/master@{#34255}