[wasm] [asm.js] Don't allow bad return types from a global constant

[wasm] [asm.js] Don't allow bad return types from a global constant

We recently allowed global constants in asm.js validated code.
When used in a return statement, these need to be of an allowed type.

BUG=660813
R=jpp@chromium.org,aseemgarg@chromium.org

Committed: https://crrev.com/3f2db58c8985896e6c452fcececced7ddc357eb8
Cr-Commit-Position: refs/heads/master@{#40850}

[bradnelson, 2016-11-07 05:33:57]

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

[commit-bot: I haz the power, 2016-11-07 05:34:05]

Dry run: 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, 2016-11-07 05:58:54]

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

[commit-bot: I haz the power, 2016-11-07 05:58:55]

Dry run: This issue passed the CQ dry run.

[aseemgarg, 2016-11-08 22:34:04]

lgtm

[bradn, 2016-11-08 22:35:25]

The CQ bit was checked by bradnelson@google.com

[commit-bot: I haz the power, 2016-11-08 22:35:30]

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, 2016-11-08 23:31:51]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-11-17 22:26:53]

Description was changed from

==========
[wasm] [asm.js] Don't allow bad return types from a global constant

We recently allowed global constants in asm.js validated code.
When used in a return statement, these need to be of an allowed type.

BUG=660813
R=jpp@chromium.org,aseemgarg@chromium.org
==========

to

==========
[wasm] [asm.js] Don't allow bad return types from a global constant

We recently allowed global constants in asm.js validated code.
When used in a return statement, these need to be of an allowed type.

BUG=660813
R=jpp@chromium.org,aseemgarg@chromium.org

Committed: https://crrev.com/3f2db58c8985896e6c452fcececced7ddc357eb8
Cr-Commit-Position: refs/heads/master@{#40850}
==========

[commit-bot: I haz the power, 2016-11-17 22:26:54]

Patchset 1 (id:??) landed as
https://crrev.com/3f2db58c8985896e6c452fcececced7ddc357eb8
Cr-Commit-Position: refs/heads/master@{#40850}