Updates Object.prototype.toString() to use algorithm described in harmony drafts.

Currently, the behaviour is essentially the same as ES262's version, however this changes when internal structures
such as Promise make use of symbolToStringTag (as they are supposed to, see v8:3241), and changes further once
Symbol.toStringTag is exposed publicly.

BUG=v8:3241, v8:3502
LOG=N
R=dslomov@chromium.org

Review URL: https://codereview.chromium.org/546803003

Patch from Caitlin Potter <caitpotter88@gmail.com>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24783 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/670703002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24767 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Basically a follow-up to https://codereview.chromium.org/667573005/.

LOG=y
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/670673002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24755 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/665883002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24744 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

The Isolate version of v8::VisitHandlesWithClassIds is needed
for https://codereview.chromium.org/651713002/

R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/664473002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24671 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This will be needed to get a stack trace from a DOMException.

API=v8::Exception::GetStackTrace
R=yangguo@chromium.org
LOG=Y

Review URL: https://codereview.chromium.org/655243002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24655 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Introduce an object that holds a weak reference.
Design document: http://goo.gl/9dSvvy.

BUG=
R=erik.corry@gmail.com

Review URL: https://codereview.chromium.org/640303006

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24606 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/635323002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24471 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=v8:3618
R=ishell@chromium.org, svenpanne@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/637263002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24453 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Embedders that used this method to be able to store a Persistent in a
container should use one of the containers in v8-util.h instead.

Other uses are no longer supported.

BUG=none
R=dcarney@chromium.org
LOG=y

Review URL: https://codereview.chromium.org/635513002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24436 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=aandrey@chromium.org
BUG=chromium:393913
LOG=N

Review URL: https://codereview.chromium.org/630373003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24432 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This relands https://codereview.chromium.org/619913002/
The test has been fixed to do a GC so it does not appear to leak in
ASAN.  In addition the test has been fixed to work in the no-i18n
build, by incorporating the change from https://codereview.chromium.org/631743002/
R=ishell@chromium.org
BUG=

Review URL: https://codereview.chromium.org/628223002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24423 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This is due to breakage on the ASAN memory leak bot, possibly due to
pre-existing leaks in v8BreakIterator().

R=ishell@chromium.org
BUG=

Review URL: https://codereview.chromium.org/636493004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24409 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=marja@chromium.org
BUG=

Review URL: https://codereview.chromium.org/619913002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24400 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/604373008

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24391 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

On Win64, the first page is reserved for the embedder.

BUG=v8:3597
R=svenpanne@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/619233003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24383 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

API=v8::Object::GetIsolate()
LOG=Y
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/617263003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24376 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=dslomov@chromium.org

Review URL: https://codereview.chromium.org/618213002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24362 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This reverts r24345.

TBR=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/618123005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24346 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Also refactor symbols in the root list.

R=dslomov@chromium.org

Review URL: https://codereview.chromium.org/614083002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24345 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=aandrey@chromium.org, yurys@chromium.org, rossberg@chromium.org
API=v8::Isolate::SetPromiseRejectCallback, v8::Promise::HasHandler
LOG=Y
BUG=v8:3093

Review URL: https://codereview.chromium.org/600723005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24335 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

The patch is based on https://codereview.chromium.org/578163002/#ps20001
made by gholap@chromium.org

LOG=N
BUG=v8:3490
R=bmeurer@chromium.org, yurys@chromium.org

Review URL: https://codereview.chromium.org/596533002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24285 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Since the x64 backend currently doesn't emit ABI compliant code, it is
not possible to unwind the stack. During Win64 SEH this will cause the
exception handling to abort, and not even call the unhandled exception
handler. Embedders are advised to install a custom unwind callback using
RtlInstallFunctionTableCallback for the entire code range to catch
unwind attempts for exception handling.

BUG=v8:3598
R=svenpanne@chromium.org
LOG=y

Review URL: https://codereview.chromium.org/612043002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24283 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=ulan@chromium.org, yangguo@chromium.org, wingo, yangguo

Review URL: https://codereview.chromium.org/608503002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24278 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Embedders should either pass the information to via
Isolate::CreateParams or use Isolate::SetStackLimit where appropriate

BUG=none
R=svenpanne@chromium.org
LOG=y

Review URL: https://codereview.chromium.org/584843002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24080 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

> We also initialize the Isolate on creation.
>
> This should allow for getting rid of the last remaining default isolate
> traces. Also, it'll speed up several isolate related operations that no
> longer require locks.
>
> Embedders that relied on v8::Isolate to return an uninitialized Isolate
> (so they can set ResourceConstraints for example, or set flags that
> modify the way the isolate is created) should either do the setup before
> creating the isolate, or use the recently added CreateParams to pass e.g.
> ResourceConstraints.
>
> BUG=none
> LOG=y
> R=svenpanne@chromium.org
>
> Review URL: https://codereview.chromium.org/469783002

BUG=none
LOG=y
TBR=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/583153002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24067 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

LOG=n
TBR=svenpanne@chromium.org
BUG=none

Review URL: https://codereview.chromium.org/582953002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24055 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

We also initialize the Isolate on creation.

This should allow for getting rid of the last remaining default isolate
traces. Also, it'll speed up several isolate related operations that no
longer require locks.

Embedders that relied on v8::Isolate to return an uninitialized Isolate
(so they can set ResourceConstraints for example, or set flags that
modify the way the isolate is created) should either do the setup before
creating the isolate, or use the recently added CreateParams to pass e.g.
ResourceConstraints.

BUG=none
LOG=y
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/469783002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24052 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

We can only set resource constraints before the isolate is initialized.
Since in the future, we want to initialize isolates at construction
time, we need to set constraints there.

It's possible to later modify the stack limit, so introduce an
Isolate::SetStackLimit method for that.

The SetResourceConstraints method will be deprecated. Users should pass
ResourceConstraints to Isolate::New, and use Isolate::SetStackLimit to
later modify the stack limit.

BUG=none
R=svenpanne@chromium.org
LOG=y

Review URL: https://codereview.chromium.org/559993005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23964 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

several API methods will automatically initialize it. During this
uninitialized state, code event handlers and function entry handlers can
be attached to the isolate.

This CL deprecates SetFunctionEntryHook and moves the configuration of
those handlers to the Isolate factory method.

This will allow for initializing the Isolate at creation time in the
future.

Users of V8::SetFunctionEntryHook should pass the entry hook to
Isolate::New instead. V8::SetJitCodeEventHandler should either be passed
to Isolate::New as well, or (if startup events are not required) invoked
via the Isolate.

BUG=none
LOG=y
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/570993002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23940 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Blink will use this API to stream script data into V8 as the scripts
load. During loading, V8 can already parse the scripts. They will be then
compiled and executed when the loading is complete.

This is a reincarnation of https://codereview.chromium.org/366153002/
with fixes.

BUG=
R=jochen@chromium.org, rossberg@chromium.org, svenpanne@chromium.org, yangguo@chromium.org

Review URL: https://codereview.chromium.org/566553002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23904 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This reverts r23865

Revert "Fix compilation after r23865."

This reverts r23867

Reason: the test contains characters too special for Windows's taste.

TBR=ulan@chromium.org

BUG=

Review URL: https://codereview.chromium.org/545203003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23868 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=ulan@chromium.org
BUG=

Review URL: https://codereview.chromium.org/549043003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23867 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Blink will use this API to stream script data into V8 as the scripts
load. During loading, V8 can already parse the scripts. They will be then
compiled and executed when the loading is complete.

BUG=
R=jochen@chromium.org, rossberg@chromium.org, svenpanne@chromium.org, yangguo@chromium.org

Review URL: https://codereview.chromium.org/366153002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23865 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=dcarney@chromium.org, marja@chromium.org

Review URL: https://codereview.chromium.org/559913002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23840 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/555053002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23788 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

The "enum hack" (see Item 2 of "Effective C++") is the only known
portable way to define constant integral values within template
classes. Fixes the weird work-arounds required for certain GCC
versions.

R=jarin@chromium.org, rossberg@chromium.org

Review URL: https://codereview.chromium.org/527603002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23550 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Vector based load ics need a premonomorphic and generic symbol.

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/505763002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23365 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

These checks will be needed for DevTools.

R=yangguo@chromium.org, svenpanne@chromium.org

Review URL: https://codereview.chromium.org/464413002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23338 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=arv@chromium.org, verwaest@chromium.org
BUG=v8:3330
LOG=N

Review URL: https://codereview.chromium.org/475423003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23274 ce2b1a6d-e550-0410-aec6-3dcde31c8c00