[interpreter] Add BytecodeGenerator::Abort().

[interpreter] Add BytecodeGenerator::Abort().

Add a method to emit abort for code which should
not be reachable.

BUG=v8:4280
LOG=N

Committed: https://crrev.com/8d5d9e18ea6a75929f8efb9b4130b83bca7c165c
Cr-Commit-Position: refs/heads/master@{#36438}

[oth, 2016-05-23 11:05:41]

oth@chromium.org changed reviewers:
+ rmcilroy@chromium.org

[oth, 2016-05-23 11:05:42]

Ross, PTAL. This was an omission in the CL that prevented emitting
Bytecode::kIllegal. It was undone in the review comments:

https://codereview.chromium.org/1979523002

[rmcilroy, 2016-05-23 11:09:27]

I don't think the description is accurate - it should be "for code which
shouldn't be reachable" not "situations the interpreter does not handle".

Other than that, LGTM

[oth, 2016-05-23 11:20:24]

Description was changed from

==========
[interpreter] Add BytecodeGenerator::Abort().

Add a method to emit abort for situations the interpreter does not
handle.

BUG=v8:4280
LOG=N
==========

to

==========
[interpreter] Add BytecodeGenerator::Abort().

Add a method to emit abort for code which should
not be reachable.

BUG=v8:4280
LOG=N
==========

[oth, 2016-05-23 11:20:38]

The CQ bit was checked by oth@chromium.org

[commit-bot: I haz the power, 2016-05-23 11:20:45]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2002833005/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/2002833005/1

[commit-bot: I haz the power, 2016-05-23 11:51:43]

Description was changed from

==========
[interpreter] Add BytecodeGenerator::Abort().

Add a method to emit abort for code which should
not be reachable.

BUG=v8:4280
LOG=N
==========

to

==========
[interpreter] Add BytecodeGenerator::Abort().

Add a method to emit abort for code which should
not be reachable.

BUG=v8:4280
LOG=N
==========

[commit-bot: I haz the power, 2016-05-23 11:51:44]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-05-23 11:53:41]

Description was changed from

==========
[interpreter] Add BytecodeGenerator::Abort().

Add a method to emit abort for code which should
not be reachable.

BUG=v8:4280
LOG=N
==========

to

==========
[interpreter] Add BytecodeGenerator::Abort().

Add a method to emit abort for code which should
not be reachable.

BUG=v8:4280
LOG=N

Committed: https://crrev.com/8d5d9e18ea6a75929f8efb9b4130b83bca7c165c
Cr-Commit-Position: refs/heads/master@{#36438}
==========

[commit-bot: I haz the power, 2016-05-23 11:53:41]

Patchset 1 (id:??) landed as
https://crrev.com/8d5d9e18ea6a75929f8efb9b4130b83bca7c165c
Cr-Commit-Position: refs/heads/master@{#36438}