[turbofan] Optimize typeof operator without storing strings in Type

[turbofan] Optimize typeof operator without storing strings in Type

We'll take expressions like typeof 'hello' and reduce it to 'string'.
Neat! This CL moves the optimization to an explicit reduction
in typed lowering that inserts a constant string, instead of
relying on type matching.

BUG=

Committed: https://crrev.com/cacb44a92748c14d63125c2e3203534176db20bc
Cr-Commit-Position: refs/heads/master@{#40175}

[mvstanton, 2016-10-11 14:06:37]

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

[commit-bot: I haz the power, 2016-10-11 14:06:43]

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

[mvstanton, 2016-10-11 14:07:40]

mvstanton@chromium.org changed reviewers:
+ jarin@chromium.org

[mvstanton, 2016-10-11 14:07:41]

Hi Jaro,
This is similar to the previous CL, can you have a look?
Thanks!
--Mike

[Jarin, 2016-10-11 14:14:07]

lgtm. Nice cleanup!

[mvstanton, 2016-10-11 14:27:06]

The CQ bit was checked by mvstanton@chromium.org

[commit-bot: I haz the power, 2016-10-11 14:27:13]

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, 2016-10-11 14:32:35]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-10-11 14:32:49]

Description was changed from

==========
[turbofan] Optimize typeof operator without storing strings in Type

We'll take expressions like typeof 'hello' and reduce it to 'string'.
Neat! This CL moves the optimization to an explicit reduction
in typed lowering that inserts a constant string, instead of
relying on type matching.

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

to

==========
[turbofan] Optimize typeof operator without storing strings in Type

We'll take expressions like typeof 'hello' and reduce it to 'string'.
Neat! This CL moves the optimization to an explicit reduction
in typed lowering that inserts a constant string, instead of
relying on type matching.

BUG=

Committed: https://crrev.com/cacb44a92748c14d63125c2e3203534176db20bc
Cr-Commit-Position: refs/heads/master@{#40175}
==========

[commit-bot: I haz the power, 2016-10-11 14:32:50]

Patchset 1 (id:??) landed as
https://crrev.com/cacb44a92748c14d63125c2e3203534176db20bc
Cr-Commit-Position: refs/heads/master@{#40175}