Reland Just visit young array buffers during scavenge.

Just visit young array buffers during scavenge. Additionally keep the views in new space in a separate global list and move them to the corresponding array buffers when they get promoted.

BUG=

Committed: https://crrev.com/aab76eff43a116f287c15cb2412375afbd9c252e
Cr-Commit-Position: refs/heads/master@{#27128}

[Hannes Payer (out of office), 2015-03-10 14:48:53]

hpayer@chromium.org changed reviewers:
+ ulan@chromium.org

[ulan, 2015-03-10 14:56:14]

Question

https://codereview.chromium.org/990423004/diff/20001/src/heap/heap.cc
File src/heap/heap.cc (right):

https://codereview.chromium.org/990423004/diff/20001/src/heap/heap.cc#newcode...
src/heap/heap.cc:2235: heap->set_migration_failure(false);
Where is migration_failure set to true?

https://codereview.chromium.org/990423004/diff/20001/src/heap/objects-visitin...
File src/heap/objects-visiting.cc (right):

https://codereview.chromium.org/990423004/diff/20001/src/heap/objects-visitin...
src/heap/objects-visiting.cc:289: if (view != undefined && record_slots) {
view should never be undefined here.

[Hannes Payer (out of office), 2015-03-10 15:12:24]

https://codereview.chromium.org/990423004/diff/20001/src/heap/heap.cc
File src/heap/heap.cc (right):

https://codereview.chromium.org/990423004/diff/20001/src/heap/heap.cc#newcode...
src/heap/heap.cc:2235: heap->set_migration_failure(false);
On 2015/03/10 14:56:14, ulan wrote:
> Where is migration_failure set to true?

here. that was a manual merge conflict error.

https://codereview.chromium.org/990423004/diff/20001/src/heap/objects-visitin...
File src/heap/objects-visiting.cc (right):

https://codereview.chromium.org/990423004/diff/20001/src/heap/objects-visitin...
src/heap/objects-visiting.cc:289: if (view != undefined && record_slots) {
On 2015/03/10 14:56:14, ulan wrote:
> view should never be undefined here.

Correct, removed.

[ulan, 2015-03-11 09:03:33]

lgtm

[Hannes Payer (out of office), 2015-03-11 10:19:20]

The CQ bit was checked by hpayer@chromium.org

[commit-bot: I haz the power, 2015-03-11 10:19:32]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/990423004/40001

[commit-bot: I haz the power, 2015-03-11 10:57:59]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2015-03-11 10:58:16]

Patchset 3 (id:??) landed as
https://crrev.com/aab76eff43a116f287c15cb2412375afbd9c252e
Cr-Commit-Position: refs/heads/master@{#27128}