[turbofan] Unify NodeProperties::InferReceiverMaps.

[turbofan] Unify NodeProperties::InferReceiverMaps.

Unify the three different implementations of InferReceiverMaps, which
were basically copy&paste with slightly different optimizations applied
later into a single NodeProperties::InferReceiverMaps helper, which also
returns a ZoneHandleSet of maps, rather than only a single map.

BUG=v8:5267
R=jarin@chromium.org

Review-Url: https://codereview.chromium.org/2703133003
Cr-Commit-Position: refs/heads/master@{#43318}
Committed: https://chromium.googlesource.com/v8/v8/+/fc3312255f44eefac0677a9c0267095858c7c799

[Benedikt Meurer, 2017-02-20 12:08:37]

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

[commit-bot: I haz the power, 2017-02-20 12:08:40]

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

[Benedikt Meurer, 2017-02-20 12:13:15]

Hey Jaro,

Unifying the various ways to find receiver maps from the graph.
Please take a look.

Thanks,
Benedikt

[Jarin, 2017-02-20 12:16:22]

lgtm

[Benedikt Meurer, 2017-02-20 12:24:03]

The CQ bit was unchecked by bmeurer@chromium.org

[Benedikt Meurer, 2017-02-20 12:24:10]

The CQ bit was checked by bmeurer@chromium.org

[commit-bot: I haz the power, 2017-02-20 12:24:18]

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, 2017-02-20 12:54:05]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1487593450475680, "parent_rev":
"46290669d1886c2e6ed28e180dd05b6833d7453d", "commit_rev":
"fc3312255f44eefac0677a9c0267095858c7c799"}

[commit-bot: I haz the power, 2017-02-20 12:54:09]

Description was changed from

==========
[turbofan] Unify NodeProperties::InferReceiverMaps.

Unify the three different implementations of InferReceiverMaps, which
were basically copy&paste with slightly different optimizations applied
later into a single NodeProperties::InferReceiverMaps helper, which also
returns a ZoneHandleSet of maps, rather than only a single map.

BUG=v8:5267
R=jarin@chromium.org
==========

to

==========
[turbofan] Unify NodeProperties::InferReceiverMaps.

Unify the three different implementations of InferReceiverMaps, which
were basically copy&paste with slightly different optimizations applied
later into a single NodeProperties::InferReceiverMaps helper, which also
returns a ZoneHandleSet of maps, rather than only a single map.

BUG=v8:5267
R=jarin@chromium.org

Review-Url: https://codereview.chromium.org/2703133003
Cr-Commit-Position: refs/heads/master@{#43318}
Committed:
https://chromium.googlesource.com/v8/v8/+/fc3312255f44eefac0677a9c0267095858c...
==========

[commit-bot: I haz the power, 2017-02-20 12:54:10]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/v8/v8/+/fc3312255f44eefac0677a9c0267095858c...