Allow implicit conversion of acceptList values to string during Object.observe

Allow implicit conversion of acceptList values to string during Object.observe

R=rossberg@chromium.org
BUG=

Committed: http://code.google.com/p/v8/source/detail?r=16703

[rossberg, 2013-09-11 10:51:02]

Is there a strong motivation for disallowing empty accept lists? IME, artificial
discontinuities like that are always a pain when you use an API programatically
(i.e., generate these lists via some generic computation).

https://codereview.chromium.org/23464058/diff/2001/test/mjsunit/harmony/objec...
File test/mjsunit/harmony/object-observe.js (right):

https://codereview.chromium.org/23464058/diff/2001/test/mjsunit/harmony/objec...
test/mjsunit/harmony/object-observe.js:123: ['foo', 'bar', 'baz']));
We should have a test now passing a non-string that actually converts to a known
accept string.

[rafaelw, 2013-09-11 20:58:55]

PTAL

https://codereview.chromium.org/23464058/diff/2001/test/mjsunit/harmony/objec...
File test/mjsunit/harmony/object-observe.js (right):

https://codereview.chromium.org/23464058/diff/2001/test/mjsunit/harmony/objec...
test/mjsunit/harmony/object-observe.js:123: ['foo', 'bar', 'baz']));
Done.

On 2013/09/11 10:51:02, rossberg wrote:
> We should have a test now passing a non-string that actually converts to a
known
> accept string.

[rossberg, 2013-09-12 11:16:18]

LGTM, will land when tree is green

[rossberg, 2013-09-13 08:09:47]

Committed patchset #3 manually as r16703 (presubmit successful).