Handlify JSObject::MigrateInstance and friends.

Handlify JSObject::MigrateInstance and friends.

R=verwaest@chromium.org

Committed: http://code.google.com/p/v8/source/detail?r=16899

[Toon Verwaest, 2013-09-19 11:41:42]

lgtm with comment

https://codereview.chromium.org/23583052/diff/1/src/objects.cc
File src/objects.cc (right):

https://codereview.chromium.org/23583052/diff/1/src/objects.cc#newcode2297
src/objects.cc:2297: // Nothing to do if no functions were converted to fields.
and no smis were converted to doubles.

https://codereview.chromium.org/23583052/diff/1/src/objects.cc#newcode2335
src/objects.cc:2335: // trying to migrate the instance.
Now that this is handlified, we don't need to pre-tenure anymore.

[Michael Starzinger, 2013-09-19 15:47:56]

Thanks for the review. Addressed comments. Will land after dependent CL made it
in.

https://codereview.chromium.org/23583052/diff/1/src/objects.cc
File src/objects.cc (right):

https://codereview.chromium.org/23583052/diff/1/src/objects.cc#newcode2297
src/objects.cc:2297: // Nothing to do if no functions were converted to fields.
On 2013/09/19 11:41:42, Toon Verwaest wrote:
> and no smis were converted to doubles.

Done.

https://codereview.chromium.org/23583052/diff/1/src/objects.cc#newcode2335
src/objects.cc:2335: // trying to migrate the instance.
On 2013/09/19 11:41:42, Toon Verwaest wrote:
> Now that this is handlified, we don't need to pre-tenure anymore.

Done.

[Michael Starzinger, 2013-09-23 15:02:36]

Committed patchset #3 manually as r16899 (presubmit successful).