[turbofan] Properly check Tagged->Word32 changes.

[turbofan] Properly check Tagged->Word32 changes.

Don't unconditionally assume that Tagged->Word32 changes are always
truncating independent of the type of the input. Work-around the
remaining issues with for-in by properly renaming the index if it's
not already of appropriate type (happens with generators or OSR).

R=jarin@chromium.org

Committed: https://crrev.com/bf5c5bf8a498031b3a9fa52fbe511b8e6d9a86ad
Cr-Commit-Position: refs/heads/master@{#41484}

[Benedikt Meurer, 2016-12-05 09:53:15]

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

[commit-bot: I haz the power, 2016-12-05 09:53:21]

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, 2016-12-05 10:17:55]

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

[commit-bot: I haz the power, 2016-12-05 10:17:56]

Dry run: This issue passed the CQ dry run.

[Jarin, 2016-12-05 11:54:30]

lgtm

[Benedikt Meurer, 2016-12-05 11:54:48]

The CQ bit was checked by bmeurer@chromium.org

[commit-bot: I haz the power, 2016-12-05 11:54:57]

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, 2016-12-05 11:56:53]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1480938888085220, "parent_rev":
"d43b640f027c0d8f24fe1d76caf9771b6cf1fa93", "commit_rev":
"e1d84d259971e31d354d2d51626451f828045c9f"}

[commit-bot: I haz the power, 2016-12-05 11:56:57]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-12-05 11:57:23]

Description was changed from

==========
[turbofan] Properly check Tagged->Word32 changes.

Don't unconditionally assume that Tagged->Word32 changes are always
truncating independent of the type of the input. Work-around the
remaining issues with for-in by properly renaming the index if it's
not already of appropriate type (happens with generators or OSR).

R=jarin@chromium.org
==========

to

==========
[turbofan] Properly check Tagged->Word32 changes.

Don't unconditionally assume that Tagged->Word32 changes are always
truncating independent of the type of the input. Work-around the
remaining issues with for-in by properly renaming the index if it's
not already of appropriate type (happens with generators or OSR).

R=jarin@chromium.org

Committed: https://crrev.com/bf5c5bf8a498031b3a9fa52fbe511b8e6d9a86ad
Cr-Commit-Position: refs/heads/master@{#41484}
==========

[commit-bot: I haz the power, 2016-12-05 11:57:24]

Patchset 1 (id:??) landed as
https://crrev.com/bf5c5bf8a498031b3a9fa52fbe511b8e6d9a86ad
Cr-Commit-Position: refs/heads/master@{#41484}