Provide "freeBuffer()" primitive for testing under ASan.

Provide "freeBuffer()" primitive for testing under ASan.

R=machenbach@chromium.org

Committed: https://code.google.com/p/v8/source/detail?r=18091

[Dmitry Lomov (no reviews), 2013-11-25 14:50:42]

PTAL. This provides the call to check address sanitizer.

[Michael Achenbach, 2013-11-26 11:20:08]

Where are free-buffer-extension.*?

[Dmitry Lomov (no reviews), 2013-11-26 13:38:26]

On 2013/11/26 11:20:08, machenbach wrote:
> Where are free-buffer-extension.*?

Oops, sorry. Added.

[Michael Achenbach, 2013-11-26 15:08:57]

Could you add a test case that exercises this extension?

https://codereview.chromium.org/85883002/diff/20001/src/bootstrapper.cc
File src/bootstrapper.cc (right):

https://codereview.chromium.org/85883002/diff/20001/src/bootstrapper.cc#newco...
src/bootstrapper.cc:44: #include "extensions/free-buffer-extension.h"
Is an #ifdef ADDRESS_SANITIZER necessary here?

[Dmitry Lomov (no reviews), 2013-11-26 15:22:10]

The test for this extension should be a part of chromium's tool sanity tests.

https://codereview.chromium.org/85883002/diff/20001/src/bootstrapper.cc
File src/bootstrapper.cc (right):

https://codereview.chromium.org/85883002/diff/20001/src/bootstrapper.cc#newco...
src/bootstrapper.cc:44: #include "extensions/free-buffer-extension.h"
On 2013/11/26 15:08:57, machenbach wrote:
> Is an #ifdef ADDRESS_SANITIZER necessary here?

Not necessary,  since the act of including the header does not affect anything,
and we have at least some compilation validation.

[Michael Achenbach, 2013-11-26 16:46:37]

LGTM

[Dmitry Lomov (no reviews), 2013-11-27 09:22:12]

Committed patchset #2 manually as r18091 (presubmit successful).