VectorICs: megamorphic keyed loads in crankshaft don't need a vector.

VectorICs: megamorphic keyed loads in crankshaft don't need a vector.

This needs "Pass load ic state through the Oracle"
(https://codereview.chromium.org/1083933002/) to land first.

BUG=
R=dcarney@chromium.org

Committed: https://crrev.com/776770c0e4e9cffad408581962ca90f247ac66f0
Cr-Commit-Position: refs/heads/master@{#27827}

[mvstanton, 2015-04-14 16:37:23]

Hi Dan,
This is the same CL you reviewed a day ago, but as discussed, it's deficiencies
are resolved by:
* Another CL that exposes InlineCacheState to crankshaft,
* A change in HOptimizedGraphBuilder::BuildKeyedGeneric(),
* nit: a broken assert in HLoadKeyedGeneric::HasVectorAndSlot()

Thanks for the look (again)!
--Michael

[dcarney, 2015-04-14 18:06:03]

lgtm

[mvstanton, 2015-04-15 02:00:18]

The CQ bit was checked by mvstanton@chromium.org

[mvstanton, 2015-04-15 02:00:18]

The patchset sent to the CQ was uploaded after l-g-t-m from dcarney@chromium.org
Link to the patchset: https://codereview.chromium.org/1083083002/#ps20001
(title: "REBASE.")

[commit-bot: I haz the power, 2015-04-15 02:00:27]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1083083002/20001

[commit-bot: I haz the power, 2015-04-15 02:35:45]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-04-15 02:35:59]

Patchset 2 (id:??) landed as
https://crrev.com/776770c0e4e9cffad408581962ca90f247ac66f0
Cr-Commit-Position: refs/heads/master@{#27827}