[ast] Allow dereferencing handles in Print helper.

[ast] Allow dereferencing handles in Print helper.

Calling AstNode::Print() from within gdb, e.g. during bytecode
generation, sometimes results in a CHECK failure due to handle
dereferencing being disallowed.  This is very frustrating.

Since this function is purely for debugging and not called anywhere in
the code base, I'm now explicitly adding an AllowHandleDereference scope
to it.

R=adamk@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2711003007
Cr-Commit-Position: refs/heads/master@{#43439}
Committed: https://chromium.googlesource.com/v8/v8/+/2c7508f118c91eed6cd51d141638bbdde9a87aec

[adamk, 2017-02-24 17:40:44]

lgtm, ccing ignition folks FYI

[rmcilroy, 2017-02-24 17:55:13]

On 2017/02/24 17:40:44, adamk wrote:
> lgtm, ccing ignition folks FYI

Lgtm

[neis, 2017-02-27 08:55:33]

The CQ bit was checked by neis@chromium.org

[commit-bot: I haz the power, 2017-02-27 08:55:42]

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, 2017-02-27 09:17:59]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1488185733707450, "parent_rev":
"024c4ff0dedfa7f3d163b4e9093673c185ad9e50", "commit_rev":
"2c7508f118c91eed6cd51d141638bbdde9a87aec"}

[commit-bot: I haz the power, 2017-02-27 09:18:05]

Description was changed from

==========
[ast] Allow dereferencing handles in Print helper.

Calling AstNode::Print() from within gdb, e.g. during bytecode
generation, sometimes results in a CHECK failure due to handle
dereferencing being disallowed.  This is very frustrating.

Since this function is purely for debugging and not called anywhere in
the code base, I'm now explicitly adding an AllowHandleDereference scope
to it.

R=adamk@chromium.org
BUG=
==========

to

==========
[ast] Allow dereferencing handles in Print helper.

Calling AstNode::Print() from within gdb, e.g. during bytecode
generation, sometimes results in a CHECK failure due to handle
dereferencing being disallowed.  This is very frustrating.

Since this function is purely for debugging and not called anywhere in
the code base, I'm now explicitly adding an AllowHandleDereference scope
to it.

R=adamk@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2711003007
Cr-Commit-Position: refs/heads/master@{#43439}
Committed:
https://chromium.googlesource.com/v8/v8/+/2c7508f118c91eed6cd51d141638bbdde9a...
==========

[commit-bot: I haz the power, 2017-02-27 09:18:06]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/v8/v8/+/2c7508f118c91eed6cd51d141638bbdde9a...