Remove unused byte from Map::instance_sizes field.

Remove unused byte from Map::instance_sizes field.

Note that there are currently no objects that require a pre-allocated
properties backing store, all such slots are in-object properties from
the begining. Hence {unused + pre_allocated - inobject == 0} holds.

R=verwaest@chromium.org

Committed: https://crrev.com/2027335f1ce44b0c6523eb5e55881e2a4e162815
Cr-Commit-Position: refs/heads/master@{#29590}

[Michael Starzinger, 2015-07-10 16:04:59]

Architecture ports are still in the works. But the rest is ready.

[Toon Verwaest, 2015-07-10 16:15:17]

Awesome! Uppercase LGTM

https://codereview.chromium.org/1226203011/diff/1/src/bootstrapper.cc
File src/bootstrapper.cc (right):

https://codereview.chromium.org/1226203011/diff/1/src/bootstrapper.cc#newcode...
src/bootstrapper.cc:1302: iterator_result_map->set_inobject_properties(
You probably don't need this since it's assured right above. If you want to be
explicit I guess that's fine ...

[Michael Starzinger, 2015-07-10 16:21:19]

https://codereview.chromium.org/1226203011/diff/1/src/bootstrapper.cc
File src/bootstrapper.cc (right):

https://codereview.chromium.org/1226203011/diff/1/src/bootstrapper.cc#newcode...
src/bootstrapper.cc:1302: iterator_result_map->set_inobject_properties(
On 2015/07/10 16:15:17, Toon Verwaest wrote:
> You probably don't need this since it's assured right above. If you want to be
> explicit I guess that's fine ...

Done.

[Toon Verwaest, 2015-07-10 16:23:28]

lgtm

[Michael Starzinger, 2015-07-13 07:52:41]

The CQ bit was checked by mstarzinger@chromium.org

[Michael Starzinger, 2015-07-13 07:52:42]

The patchset sent to the CQ was uploaded after l-g-t-m from
verwaest@chromium.org
Link to the patchset: https://codereview.chromium.org/1226203011/#ps60001
(title: "Ported to all architectures.")

[commit-bot: I haz the power, 2015-07-13 07:52:47]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1226203011/60001

[commit-bot: I haz the power, 2015-07-13 08:26:27]

Committed patchset #4 (id:60001)

[commit-bot: I haz the power, 2015-07-13 08:26:46]

Patchset 4 (id:??) landed as
https://crrev.com/2027335f1ce44b0c6523eb5e55881e2a4e162815
Cr-Commit-Position: refs/heads/master@{#29590}