ReceiverCheckMode needs to be utilized further.

ReceiverCheckMode needs to be utilized further.

The parameter wasn't being passed appropriately, and there was an extra
opportunity to use mode RECEIVER_IS_STRING in SubStringStub.

R=yangguo@chromium.org

Committed: https://code.google.com/p/v8/source/detail?r=24704

[mvstanton, 2014-10-17 16:07:11]

mvstanton@chromium.org changed reviewers:
+ yangguo@chromium.org

[mvstanton, 2014-10-17 16:07:11]

Hi Yang,
Here is the minor issue we discussed today. Just a slight reduction in work for
the String generators in a few cases. PTAL, thx!
--Michael

[Yang, 2014-10-17 16:09:57]

On 2014/10/17 16:07:11, mvstanton wrote:
> Hi Yang,
> Here is the minor issue we discussed today. Just a slight reduction in work
for
> the String generators in a few cases. PTAL, thx!
> --Michael

lgtm.

[mvstanton, 2014-10-17 16:23:44]

Committed patchset #1 (id:1) manually as 24704 (presubmit successful).