Fix braindead Handle::is_identical_to

Fix braindead Handle::is_identical_to

R=mstarzinger@chromium.org
BUG=

Committed: http://code.google.com/p/v8/source/detail?r=14568

[Michael Starzinger, 2013-05-07 11:58:37]

Just for the record ...

https://codereview.chromium.org/14660008/diff/1/src/handles-inl.h
File src/handles-inl.h (right):

https://codereview.chromium.org/14660008/diff/1/src/handles-inl.h#newcode57
src/handles-inl.h:57: reinterpret_cast<Address>(*location_) != kZapValue);
As discussed offline: This should actually check against kHandleZapValue here.
Let's change it to catch all failures (i.e. with IsFailure).

[rossberg, 2013-05-07 12:00:25]

https://codereview.chromium.org/14660008/diff/1/src/handles-inl.h
File src/handles-inl.h (right):

https://codereview.chromium.org/14660008/diff/1/src/handles-inl.h#newcode57
src/handles-inl.h:57: reinterpret_cast<Address>(*location_) != kZapValue);
On 2013/05/07 11:58:37, Michael Starzinger wrote:
> As discussed offline: This should actually check against kHandleZapValue here.
> Let's change it to catch all failures (i.e. with IsFailure).

Done (here and elsewhere).

[Michael Starzinger, 2013-05-07 12:00:28]

LGTM.

[rossberg, 2013-05-07 12:02:21]

Committed patchset #2 manually as r14568 (presubmit successful).