Port r24683 (b1533f6)

Original commit message:
Per the latest ES6 draft, super(...) translates into a call
to function's prototype.

BUG=v8:3330
LOG=N
R=dusan.milosavljevic@imgtec.com

Review URL: https://codereview.chromium.org/661043003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24690 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jarin@chromium.org
BUG=

Review URL: https://codereview.chromium.org/664693002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24689 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=jochen@chromium.org
BUG=v8:3628
LOG=N

Review URL: https://codereview.chromium.org/663483003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24688 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Adapted from patch contributed by Isiah Meadows <impinball@gmail.com>.

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/657863002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24687 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jochen@chromium.org
BUG=v8:3628
LOG=N

Review URL: https://codereview.chromium.org/650423005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24686 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TEST=mjsunit,unittests
R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/638853004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24685 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=arv@chromium.org, machenbach@chromium.org, rossberg@chromium.org

Review URL: https://codereview.chromium.org/645933003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24684 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Per the latest ES6 draft, super(...) translates into a call
to function's prototype.

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

Review URL: https://codereview.chromium.org/661433002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24683 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Also small reformat in Iterators/forof.js

R=machenbach@chromium.org

Review URL: https://codereview.chromium.org/662723006

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24682 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/641343005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24681 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/658063003

Patch from Weiliang Lin <weiliang.lin@intel.com>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24680 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=v8:3638
LOG=n
R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/659253002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24679 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BFC requires same register for input and output and causes introduction
of some unneccesary gap moves.

TEST=unittests,mjsunit
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/658283003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24678 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jochen@chromium.org

Review URL: https://codereview.chromium.org/660653008

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24677 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

See https://gcc.gnu.org/onlinedocs/libstdc++/manual/debug_mode.html for
details about the debug mode.

BUG=v8:3638
LOG=y
R=jochen@chromium.org

Review URL: https://codereview.chromium.org/648293007

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24676 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=wingo@igalia.com

Review URL: https://codereview.chromium.org/641123003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24675 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

port r24661.

original commit message:

  Eliminate special keyed load string stub in favor of uniform handlers.

  KeyedLoadIC installs a special case if the receiver is a string.
  Although there are several maps for strings, in practice we seem to
  be able to treat them individually because a given KeyedLoad site
  only sees 1-2 string types

BUG=
R=weiliang.lin@intel.com

Review URL: https://codereview.chromium.org/643783005

Patch from Chunyang Dai <chunyang.dai@intel.com>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24674 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

port 24485
Fixed a bug of "psllq" instruction in x64

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/658813003

Patch from Weiliang Lin <weiliang.lin@intel.com>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24673 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/659663005

Patch from Ben Noordhuis <ben@strongloop.com>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24672 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

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/489833004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24670 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Port r24662 (4722032)

BUG=
R=dusan.milosavljevic@imgtec.com

Review URL: https://codereview.chromium.org/657413003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24669 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Port r24661 (5499efb)

Original commit message:
KeyedLoadIC installs a special case if the receiver is a string.
Although there are several maps for strings, in practice we seem to
be able to treat them individually because a given KeyedLoad site
only sees 1-2 string types.

BUG=
R=paul.lind@imgtec.com

Review URL: https://codereview.chromium.org/657413002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24668 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Port r24654 (66aa0fb)

BUG=
R=dusan.milosavljevic@imgtec.com

Review URL: https://codereview.chromium.org/661803002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24667 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Need to svn fetch in order to make svn find-rev work.

BUG=chromium:410721
LOG=n
TEST=script_test.py
TBR=tandrii@chromium.org

Review URL: https://codereview.chromium.org/662643002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24666 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Missing line in a test to dispose of a string.

TBR=yangguo@chromium.org

Review URL: https://codereview.chromium.org/643873004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24665 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Also change the tests to use git mode.

BUG=chromium:410721
LOG=n
TEST=script_test.py
TBR=tandrii@chromium.org

Review URL: https://codereview.chromium.org/658033005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24664 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This adds flags in Scope to track wheter a Scope uses "this" and,
"arguments". The information is exposed via Scope::uses_this(),
and Scope::uses_arguments(), respectively. Flags for tracking
usage on any inner scope uses are available as well via
Scope::inner_uses_this(), and Scope::inner_uses_arguments().

Knowing whether scopes use "this" and "arguments" will be handy
to generate the code needed to capture their values when generating
the code for arrow functions.

BUG=v8:2700
LOG=
R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/422923004

Patch from Adrian Perez de Castro <aperez@igalia.com>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24663 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=yangguo@chromium.org

Review URL: https://codereview.chromium.org/659053002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24662 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

KeyedLoadIC installs a special case if the receiver is a string.
Although there are several maps for strings, in practice we seem to
be able to treat them individually because a given KeyedLoad site
only sees 1-2 string types.

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/602773003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24661 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

We cannot add new JSToNumber nodes here in general, because:

 a) The inserted ToNumber operation screws up observability of valueOf.
 b) Deoptimization at ToNumber doesn't have corresponding bailout id.

TEST=cctest,mjsunit
R=jarin@chromium.org

Review URL: https://codereview.chromium.org/649543004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24660 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=jarin@chromium.org

Review URL: https://codereview.chromium.org/655383003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24659 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=v8:3576
LOG=
R=arv@chromium.org, svenpanne@chromium.org, wingo@igalia.com

Review URL: https://codereview.chromium.org/626323002

Patch from Diego Pino <dpino@igalia.com>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24658 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=v8:3578
LOG=Y
R=dslomov@chromium.org, wingo@igalia.com

Review URL: https://codereview.chromium.org/583723002

Patch from Adrian Perez de Castro <aperez@igalia.com>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24657 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Running ValueNumberingReducer together with ChangeLowering causes
trouble with the current GraphReducer and makes GVN ineffective, so
running it before we get to change lowering works around that well-known
(phase ordering) problem for now.

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/660733003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24656 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

R=ulan@chromium.org, bmeurer@chromium.org

BUG=

Review URL: https://codereview.chromium.org/657813002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24654 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=agable@chromium.org

Review URL: https://codereview.chromium.org/657113003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24653 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=agable@chromium.org

Review URL: https://codereview.chromium.org/664483002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24652 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=agable@chromium.org

Review URL: https://codereview.chromium.org/654393003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24651 ce2b1a6d-e550-0410-aec6-3dcde31c8c00