Implement IsIndependent(Isolate*)

Implement IsIndependent(Isolate*)

BUG=
TEST=cctest/test-api/IndependentWeakHandle

Committed: https://code.google.com/p/v8/source/detail?r=12852

Committed: https://code.google.com/p/v8/source/detail?r=12854

[haraken, 2012-11-02 18:50:50]

IsIndependent() is called once per DOM object during garbage collection. We want
to make it faster.

Could you take a look?

[Michael Starzinger, 2012-11-05 11:03:21]

LGTM with one comment. I'll land this once the comment is addressed.

https://codereview.chromium.org/11368053/diff/1/src/api.cc
File src/api.cc (right):

https://codereview.chromium.org/11368053/diff/1/src/api.cc#newcode659
src/api.cc:659: bool V8::IsGlobalIndependent(i::Isolate* isolate, i::Object**
obj) {
Add "ASSERT(isolate == i::Isolate::Current())" at the beginning of the function.

[haraken, 2012-11-05 11:57:45]

Thanks!

https://codereview.chromium.org/11368053/diff/1/src/api.cc
File src/api.cc (right):

https://codereview.chromium.org/11368053/diff/1/src/api.cc#newcode659
src/api.cc:659: bool V8::IsGlobalIndependent(i::Isolate* isolate, i::Object**
obj) {
On 2012/11/05 11:03:21, Michael Starzinger wrote:
> Add "ASSERT(isolate == i::Isolate::Current())" at the beginning of the
function.

Done.

[haraken, 2012-11-05 12:43:41]

Sorry I uploaded a correct patch for IsIndependent(Isolate*). Would you land it?