[V8][Wasm] Removes references to finally in wasm.

[V8][Wasm] Removes references to finally in wasm.

The initial support for low level exception handling in Wasm will not
support finally blocks. This decision is taken for both simplicity (
handling finallys is not straightforward if we want try blocks to yield
values), and lack of good use case (clang++ does not need them.) They
may be added in the future once we understand the implications of
having them.

BUG=

Committed: https://crrev.com/ee8ae932b875a236f9d9c0763a4c54afadf65751
Cr-Commit-Position: refs/heads/master@{#39393}

[John, 2016-09-13 17:47:24]

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

[commit-bot: I haz the power, 2016-09-13 17:47:29]

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

[John, 2016-09-13 17:47:43]

jpp@chromium.org changed reviewers:
+ bradnelson@chromium.org, titzer@chromium.org

[commit-bot: I haz the power, 2016-09-13 18:36:25]

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

[commit-bot: I haz the power, 2016-09-13 18:36:26]

Dry run: Try jobs failed on following builders:
  v8_linux_rel_ng on master.tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_linux_rel_ng/builds/12607)
  v8_linux_rel_ng_triggered on master.tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_linux_rel_ng_triggered/b...)

[bradnelson, 2016-09-13 20:22:22]

The CQ bit was checked by bradnelson@chromium.org

[bradnelson, 2016-09-13 20:22:22]

lgtm

[commit-bot: I haz the power, 2016-09-13 20:22:27]

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, 2016-09-13 20:47:16]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2016-09-13 20:47:40]

Description was changed from

==========
[V8][Wasm] Removes references to finally in wasm.

The initial support for low level exception handling in Wasm will not
support finally blocks. This decision is taken for both simplicity (
handling finallys is not straightforward if we want try blocks to yield
values), and lack of good use case (clang++ does not need them.) They
may be added in the future once we understand the implications of
having them.

BUG=
==========

to

==========
[V8][Wasm] Removes references to finally in wasm.

The initial support for low level exception handling in Wasm will not
support finally blocks. This decision is taken for both simplicity (
handling finallys is not straightforward if we want try blocks to yield
values), and lack of good use case (clang++ does not need them.) They
may be added in the future once we understand the implications of
having them.

BUG=

Committed: https://crrev.com/ee8ae932b875a236f9d9c0763a4c54afadf65751
Cr-Commit-Position: refs/heads/master@{#39393}
==========

[commit-bot: I haz the power, 2016-09-13 20:47:41]

Patchset 3 (id:??) landed as
https://crrev.com/ee8ae932b875a236f9d9c0763a4c54afadf65751
Cr-Commit-Position: refs/heads/master@{#39393}