This is required to have sign-extended int32 arithmetic operations by re-landing:
https://codereview.chromium.org/1161713003

TEST=cctest/test-api/ArrayBuffer_JSInternalToExternal
BUG=

Review URL: https://codereview.chromium.org/1153263012

Cr-Commit-Position: refs/heads/master@{#28845}

We see this error using GCC 4.8.2.

R=michael_dawson@ca.ibm.com
BUG=

Review URL: https://codereview.chromium.org/1153213003

Cr-Commit-Position: refs/heads/master@{#28844}

R=jochen@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1165453009

Cr-Commit-Position: refs/heads/master@{#28843}

BUG=

Review URL: https://codereview.chromium.org/1160973006

Cr-Commit-Position: refs/heads/master@{#28842}

Revert of Only record one in n line endings to save space. (patchset #4 id:60001 of https://codereview.chromium.org/1137683003/)

Reason for revert:
Test failures https://storage.googleapis.com/chromium-layout-test-archives/V8-Blink_Win/345/layout-test-results/results.html

Original issue's description:
> Only record one in n line endings to save space.
>
> R=yangguo@chromium.org
> BUG=
>
> Committed: https://crrev.com/b3d4bce593559276e68d3d7d9168f4351e4e5090
> Cr-Commit-Position: refs/heads/master@{#28837}

TBR=yangguo@chromium.org,erik.corry@gmail.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review URL: https://codereview.chromium.org/1155683010

Cr-Commit-Position: refs/heads/master@{#28841}

R=svenpanne@chromium.org
BUG=v8:3718
LOG=N

Review URL: https://codereview.chromium.org/1164933005

Cr-Commit-Position: refs/heads/master@{#28840}

Boolean "is_strong" parameters have begun to proliferate across areas where
strong mode semantics are different. This CL repurposes the existing
ObjectStrength enum as a replacement for them.

BUG=v8:3956
LOG=N

Review URL: https://codereview.chromium.org/1144183004

Cr-Commit-Position: refs/heads/master@{#28839}

This in turn allows usage of AdvancedReducer::ReplaceWithValue which
has access to the underlying graph reducer.

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/1162903006

Cr-Commit-Position: refs/heads/master@{#28838}

R=yangguo@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1137683003

Cr-Commit-Position: refs/heads/master@{#28837}

This only introduces better typing and lowering for access to the value
field.

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/1169723002

Cr-Commit-Position: refs/heads/master@{#28836}

R=svenpanne@chromium.org, michael_dawson@ca.ibm.com
BUG=

Review URL: https://codereview.chromium.org/1163143005

Cr-Commit-Position: refs/heads/master@{#28835}

R=hpayer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1135353003

Cr-Commit-Position: refs/heads/master@{#28834}

This removes special handling of long idle notifications.

BUG=

Review URL: https://codereview.chromium.org/1159153003

Cr-Commit-Position: refs/heads/master@{#28833}

Revert of Replace ad-hoc weakness in prototype transitions with WeakCell. (patchset #2 id:20001 of https://codereview.chromium.org/1163073002/)

Reason for revert:
GC stress failures.

Original issue's description:
> Replace ad-hoc weakness in prototype transitions with WeakCell.
>
> BUG=
>
> Committed: https://crrev.com/bfb81fbe0d38c88cc1b6ed6eb1a4b8cbe2c469c3
> Cr-Commit-Position: refs/heads/master@{#28830}

TBR=jkummerow@chromium.org,hpayer@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review URL: https://codereview.chromium.org/1169733002

Cr-Commit-Position: refs/heads/master@{#28832}

BUG=chromium:495949
LOG=n

Review URL: https://codereview.chromium.org/1163033004

Cr-Commit-Position: refs/heads/master@{#28831}

BUG=

Review URL: https://codereview.chromium.org/1163073002

Cr-Commit-Position: refs/heads/master@{#28830}

Both ToName() and HasProperty() can actually throw, so we need to
propagate those exceptions properly.

BUG=chromium:496331
LOG=y
R=jarin@chromium.org

Review URL: https://codereview.chromium.org/1162833006

Cr-Commit-Position: refs/heads/master@{#28829}

BUG=v8:4131
LOG=n

Review URL: https://codereview.chromium.org/1163043003

Cr-Commit-Position: refs/heads/master@{#28828}

BUG=

Review URL: https://codereview.chromium.org/1160173004

Cr-Commit-Position: refs/heads/master@{#28827}

This unifies methods Deoptimizer::DoTranslateCommand, Deotpimizer::DoTranslateObject and the arguments object materializer.

To unify these, we have to separate reading of the input frame from writing to the output frame because the argument materializer does not write to output frames.

Instead, we now deoptimize in following stages:

1. Read out the input frame/registers, decode them using the translations from the deoptimizer and store them in the deoptimizer (Deoptimizer::translated_state_). This is done in TranslatedState::Init.

2. Write out into the output frame buffer all the values that do not require allocation. We also remember references to the values that require materialization. As before, this is done in Deoptimizer::DoCompute*Frame method, but instead calling to DoTranslateCommand, we use the translated frame to obtain the values and write them to the output frames.

3. The platform specific code then sets up the output frames and calls into the deoptimization notification. This has not been changed at all.

4. Once the stack is setup, we handlify all the references in the saved translated values (TranslatedState::Prepare).

5. Finally, we materialize all the values we remembered in step (1) and write them to their frames on the stack (using the TranslatedValue::GetValue method).

BUG=

Review URL: https://codereview.chromium.org/1136223004

Cr-Commit-Position: refs/heads/master@{#28826}

BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/1154303008

Cr-Commit-Position: refs/heads/master@{#28825}

BUG=

Review URL: https://codereview.chromium.org/1151883004

Cr-Commit-Position: refs/heads/master@{#28824}

This adds handling of JSLoadDynamicContext nodes to JSTypedLowering to
perform extension checks and an inline fast path. The fast path is a
context slot load targeting a specific context.

R=bmeurer@chromium.org
BUG=v8:4131
LOG=N

Review URL: https://codereview.chromium.org/1155543003

Cr-Commit-Position: refs/heads/master@{#28823}

R=hpayer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1133153003

Cr-Commit-Position: refs/heads/master@{#28822}

BUG=chromium:430032
LOG=n

Review URL: https://codereview.chromium.org/1156183004

Cr-Commit-Position: refs/heads/master@{#28821}

Rolling v8/tools/clang to 1efaf64b8e648c8c6539245b10cbea6f3004eb61

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1168033003

Cr-Commit-Position: refs/heads/master@{#28820}

This reverts commit 75744da2.

revert reason:
              octane failures.

BUG=

Review URL: https://codereview.chromium.org/1160143008

Cr-Commit-Position: refs/heads/master@{#28819}

BUG=

Review URL: https://codereview.chromium.org/1149623010

Cr-Commit-Position: refs/heads/master@{#28818}

This in turn allows usage of AdvancedReducer::ReplaceWithValue which
has access to the underlying graph reducer.

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/1158723005

Cr-Commit-Position: refs/heads/master@{#28817}

BUG=chromium:471659, chromium:494158
LOG=N

Review URL: https://codereview.chromium.org/1151333005

Cr-Commit-Position: refs/heads/master@{#28816}

Currently does super.prop (load) and super.method() (call). Like full
codegen it uses runtime calls to load the property value.

BUG=v8:3330
LOG=N
R=mstarzinger@chromium.org, dslomov@chromium.org

Review URL: https://codereview.chromium.org/1149133005

Cr-Commit-Position: refs/heads/master@{#28815}

We should not skip holes for these 2 functions.

BUG=v8:3895
LOG=N
R=adamk

Review URL: https://codereview.chromium.org/1165003005

Cr-Commit-Position: refs/heads/master@{#28814}

This in turn allows usage of AdvancedReducer::ReplaceWithValue which
has access to the underlying graph reducer. It will allow us to deal
with exception continuations correctly.

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/1158273011

Cr-Commit-Position: refs/heads/master@{#28813}

Only optimized for TF

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/1146963002

Cr-Commit-Position: refs/heads/master@{#28812}

BUG=none
R=ulan@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/1160253010

Cr-Commit-Position: refs/heads/master@{#28811}

This allows any AdvancedReducer to remove exception projections from
graphs. This is the common case when JS-operators are being replaced
with pure values. The old NodeProperties::ReplaceWithValue is being
deprecated in favor of AdvancedReducer::ReplaceWithValue.

R=titzer@chromium.org
TEST=unittests/AdvancedReducerTest

Review URL: https://codereview.chromium.org/1168693002

Cr-Commit-Position: refs/heads/master@{#28810}

BUG=chromium:496013
LOG=N

Review URL: https://codereview.chromium.org/1163203002

Cr-Commit-Position: refs/heads/master@{#28809}

TBR=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/1163523008

Cr-Commit-Position: refs/heads/master@{#28808}

Rolling v8/third_party/icu to 9939a5d5314b6d59d5fb070902d73304c2482f88

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1168573003

Cr-Commit-Position: refs/heads/master@{#28807}

We used to only store the uses_super_property in the preparse data
logger. Let the logger use NeedsHomeObject instead.

BUG=v8:3768
LOG=N
R=wingo, adamk

Review URL: https://codereview.chromium.org/1164073003

Cr-Commit-Position: refs/heads/master@{#28806}