[runtime] DeclareGlobals and DeclareLookupSlot don't need context parameters.

[runtime] DeclareGlobals and DeclareLookupSlot don't need context parameters.

All runtime function get a context anyway, which is the same as the
explicit one in case of DeclareGlobals and DeclareLookupSlot. So
we can remove the additional parameter there.

As an additional bonus, improve the runtime interface to DeclareLookupSlot.

R=yangguo@chromium.org

Committed: https://crrev.com/5edd18fc2e78c29594c667b9cfae68c293862d14
Cr-Commit-Position: refs/heads/master@{#29923}

[Benedikt Meurer, 2015-07-28 10:43:53]

Hey Yang,

This is some initial cleanup for DeclareGlobals. More to come.
Please take a look.

Thanks,
Benedikt

[Yang, 2015-07-28 11:02:11]

On 2015/07/28 10:43:53, Benedikt Meurer wrote:
> Hey Yang,
> 
> This is some initial cleanup for DeclareGlobals. More to come.
> Please take a look.
> 
> Thanks,
> Benedikt

lgtm.

[Benedikt Meurer, 2015-07-28 11:02:22]

The CQ bit was checked by bmeurer@chromium.org

[commit-bot: I haz the power, 2015-07-28 11:02:34]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1261863002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1261863002/1

[Benedikt Meurer, 2015-07-28 13:46:37]

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

[commit-bot: I haz the power, 2015-07-28 13:46:44]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1261863002/40001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1261863002/40001

[commit-bot: I haz the power, 2015-07-29 14:14:57]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-07-29 14:14:58]

Dry run: Try jobs failed on following builders:
  v8_linux64_rel on tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_linux64_rel/builds/8168)

[Benedikt Meurer, 2015-07-30 08:58:17]

The CQ bit was checked by bmeurer@chromium.org

[Benedikt Meurer, 2015-07-30 08:58:17]

The patchset sent to the CQ was uploaded after l-g-t-m from yangguo@chromium.org
Link to the patchset: https://codereview.chromium.org/1261863002/#ps60001
(title: "Fix x64 typo.")

[commit-bot: I haz the power, 2015-07-30 08:58:32]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1261863002/60001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1261863002/60001

[commit-bot: I haz the power, 2015-07-30 09:29:46]

Committed patchset #4 (id:60001)

[commit-bot: I haz the power, 2015-07-30 09:30:12]

Patchset 4 (id:??) landed as
https://crrev.com/5edd18fc2e78c29594c667b9cfae68c293862d14
Cr-Commit-Position: refs/heads/master@{#29923}