[compiler] Cleanup: Move DCHECK into ChangeToPureOp.

[compiler] Cleanup: Move DCHECK into ChangeToPureOp.

R=jarin@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2703113003
Cr-Commit-Position: refs/heads/master@{#43339}
Committed: https://chromium.googlesource.com/v8/v8/+/99d618193a23a5fbe7f3901f6d909ff776ef8fcf

[Jarin, 2017-02-21 09:20:28]

lgtm

[neis, 2017-02-21 09:22:15]

The CQ bit was checked by neis@chromium.org

[commit-bot: I haz the power, 2017-02-21 09:22:27]

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, 2017-02-21 09:46:17]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1487668935391280, "parent_rev":
"684323b45c913e8a3dd8f80fc675bb45bc947746", "commit_rev":
"99d618193a23a5fbe7f3901f6d909ff776ef8fcf"}

[commit-bot: I haz the power, 2017-02-21 09:46:24]

Description was changed from

==========
[compiler] Cleanup: Move DCHECK into ChangeToPureOp.

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

to

==========
[compiler] Cleanup: Move DCHECK into ChangeToPureOp.

R=jarin@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2703113003
Cr-Commit-Position: refs/heads/master@{#43339}
Committed:
https://chromium.googlesource.com/v8/v8/+/99d618193a23a5fbe7f3901f6d909ff776e...
==========

[commit-bot: I haz the power, 2017-02-21 09:46:25]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/v8/v8/+/99d618193a23a5fbe7f3901f6d909ff776e...