This removes the duplicate property check from object literals.

Instead we repurpose the ObjectLiteralChecker into two cases, implemented
by two subclasses to ObjectLiteralCheckerBase called ObjectLiteralChecker
and ClassLiteralChecker.

The object literal checker now only checks for duplicate __proto__ fields in
object literals.

The class literal checker checks for duplicate constructors, non constructor
fields named constructor as well as static properties named prototype.

BUG=v8:3819
LOG=Y
R=adamk, dslomov@chromium.org

Review URL: https://codereview.chromium.org/873823003

Cr-Commit-Position: refs/heads/master@{#26336}

Fix a typo in 6ea31f7e

BUG=

Review URL: https://codereview.chromium.org/878023003

Cr-Commit-Position: refs/heads/master@{#26335}

Revert of Use a WeakCell in the CallIC type vector. (patchset #4 id:80001 of https://codereview.chromium.org/881433002/)

Reason for revert:
Breaks a regression test on linux isloates, and linux with gcc 4.8.

Original issue's description:
> Use a WeakCell in the CallIC type vector.
>
> This allows us to clear the IC on a more sedate schedule, just
> like Load and Store ICs.
>
> R=ulan@chromium.org
> BUG=
>
> Committed: https://crrev.com/bcc79d33ca6d97d9ecfcfcf110a6ea84a0225389
> Cr-Commit-Position: refs/heads/master@{#26332}

TBR=ulan@chromium.org,mvstanton@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review URL: https://codereview.chromium.org/886663004

Cr-Commit-Position: refs/heads/master@{#26334}

R=mstarzinger@chromium.org
LOG=Y
BUG=

Review URL: https://codereview.chromium.org/890543002

Cr-Commit-Position: refs/heads/master@{#26333}

This allows us to clear the IC on a more sedate schedule, just
like Load and Store ICs.

R=ulan@chromium.org
BUG=

Review URL: https://codereview.chromium.org/881433002

Cr-Commit-Position: refs/heads/master@{#26332}

BUG=v8:3629
LOG=N

Review URL: https://codereview.chromium.org/873723005

Cr-Commit-Position: refs/heads/master@{#26331}

Introduce ProcessYoungWeakReferences and process weak list of allocation sites just during full GCs.

BUG=

Review URL: https://codereview.chromium.org/890613002

Cr-Commit-Position: refs/heads/master@{#26330}

BUG=

Review URL: https://codereview.chromium.org/884503002

Cr-Commit-Position: refs/heads/master@{#26329}

Arrow function parameter lists are parsed as expressions. When an identifier
is found a VariableProxy is created and added to the list of unresolved
variables for the scope. When parsing a function lazily, the scope has been
already resolved, so with this patch only the VariableProxy is created,
without adding it as an unresolved variable in the scope.

BUG=v8:3501
LOG=Y

Review URL: https://codereview.chromium.org/880253004

Cr-Commit-Position: refs/heads/master@{#26328}

BUG=chromium:446647
LOG=n
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/874863003

Cr-Commit-Position: refs/heads/master@{#26327}

BUG=v8:3629
LOG=N

Review URL: https://codereview.chromium.org/883253002

Cr-Commit-Position: refs/heads/master@{#26326}

BUG=chromium:451975
TBR=tandrii@chromium.org
NOTRY=true
LOG=n

TEST=./script_test.py
TEST=tools/release/releases.py -c path/to/src

Review URL: https://codereview.chromium.org/869613007

Cr-Commit-Position: refs/heads/master@{#26325}

In DevTools we need one more flag for script origin - is debugger script. We already have "is shared origin" flag. The new flag added by analogy with the old but new has accessor in script object.

R=yurys@chromium.org

Review URL: https://codereview.chromium.org/879553002

Cr-Commit-Position: refs/heads/master@{#26324}

Review URL: https://codereview.chromium.org/882973002

Cr-Commit-Position: refs/heads/master@{#26323}

Also refactor the configuration of modes to have the level
of abstraction in one json dict.

In a follow up CL, the new mode could be added to quickcheck
and release trybots.

Review URL: https://codereview.chromium.org/882983002

Cr-Commit-Position: refs/heads/master@{#26322}

BUG=

Review URL: https://codereview.chromium.org/887603002

Cr-Commit-Position: refs/heads/master@{#26321}

BUG=v8:3629
LOG=N

Review URL: https://codereview.chromium.org/880333003

Cr-Commit-Position: refs/heads/master@{#26320}

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/882103002

Cr-Commit-Position: refs/heads/master@{#26319}

R=jarin@chromium.org
BUG=

Review URL: https://codereview.chromium.org/877553007

Cr-Commit-Position: refs/heads/master@{#26318}

BUG=

Review URL: https://codereview.chromium.org/877343003

Cr-Commit-Position: refs/heads/master@{#26317}

R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/883613006

Cr-Commit-Position: refs/heads/master@{#26316}

R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/885813002

Cr-Commit-Position: refs/heads/master@{#26315}

BUG=v8:3833
LOG=N
R=arv@chromium.org

Review URL: https://codereview.chromium.org/856303002

Cr-Commit-Position: refs/heads/master@{#26314}

One missing feature: anonymous function & class declarations
in "export default".

BUG=v8:1569
LOG=n
R=arv@chromium.org

Review URL: https://codereview.chromium.org/882893002

Cr-Commit-Position: refs/heads/master@{#26313}

R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/886463005

Cr-Commit-Position: refs/heads/master@{#26312}

Port 7d363783

Original commit message:
The type feedback vector makes this easy to do.
This is a re-land of https://codereview.chromium.org/868453005/
with a fix for the DCHECK failure.

BUG=

Review URL: https://codereview.chromium.org/877253003

Cr-Commit-Position: refs/heads/master@{#26311}

BUG=

Review URL: https://codereview.chromium.org/886503002

Cr-Commit-Position: refs/heads/master@{#26310}

BUG=chromium:416359
LOG=n
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/881303002

Cr-Commit-Position: refs/heads/master@{#26309}

R=vogelheim@chromium.org

Review URL: https://codereview.chromium.org/879273003

Cr-Commit-Position: refs/heads/master@{#26308}

BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/882063002

Cr-Commit-Position: refs/heads/master@{#26307}

BUG=v8:3629
LOG=N

Review URL: https://codereview.chromium.org/879213003

Cr-Commit-Position: refs/heads/master@{#26306}

R=jarin@chromium.org
TEST=mjsunit/regress/regress-crbug-451770
BUG=chromium:451770
LOG=N

Review URL: https://codereview.chromium.org/880963002

Cr-Commit-Position: refs/heads/master@{#26305}

Instead PROJECT property is used by Rietveld to set patch_project, which is then
mapped to correct path in the recipe.

R=machenbach@chromium.org

Review URL: https://codereview.chromium.org/878573003

Cr-Commit-Position: refs/heads/master@{#26304}

Also create new v8 versions based on the roll ref, which
has some more verification steps than the candidate ref.

Improve bailout regarding existing versions. Only create a
new version if the revisions is in the future.

BUG=chromium:451975
TBR=tandrii@chromium.org
NOTRY=true
LOG=n

Review URL: https://codereview.chromium.org/878913002

Cr-Commit-Position: refs/heads/master@{#26303}

The type feedback vector makes this easy to do.
This is a re-land of https://codereview.chromium.org/868453005/
with a fix for the DCHECK failure.

Review URL: https://codereview.chromium.org/885593002

Cr-Commit-Position: refs/heads/master@{#26302}

This reverts commit 76193749.

BUG=

Review URL: https://codereview.chromium.org/877643002

Cr-Commit-Position: refs/heads/master@{#26301}

Rolling v8/tools/clang to 0825693c3460f23b1d78ad272999f850447ad333

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/873313008

Cr-Commit-Position: refs/heads/master@{#26300}

The approach taken in this CL is to incrementally move toward the
currently-specced version of modules in ES6. The biggest change in this
patch is separating the parsing of modules from the parsing of scripts,
getting rid of the 'module' keyword and thus disallowing modules-in-scripts
as well as modules-in-modules.

The syntax supported by import/export declarations has not yet been significantly
changed, with the major exception being that import declarations require a string
as the 'from' part.

Most of the existing tests have been disabled, with a first new test added
in cctest/test-parsing.

BUG=v8:1569
LOG=n

Review URL: https://codereview.chromium.org/881623002

Cr-Commit-Position: refs/heads/master@{#26299}

Port 2a567faa

BUG=

Review URL: https://codereview.chromium.org/882683002

Cr-Commit-Position: refs/heads/master@{#26298}

BUG=chromium:447561
LOG=N
TBR=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/878033003

Cr-Commit-Position: refs/heads/master@{#26297}