Inspected context is created in V8InspectorImpl::contextCreated method and destroyed in V8InspectorImpl::contextDestroyed.
Both methods takes valid v8::Local<v8::Context> handle to the same context, it means that context is created before InspectedContext constructor and is always destroyed after InspectedContext destructor therefore context weak callback in inspected context should be never called.
It's possible only if inspector client doesn't call contextDestroyed which is considered an error.

Therefore CHECK(false) is added into context weak callback to be sure that v8::Context always survives inspected context.

BUG=chromium:652548
R=dgozman@chromium.org

Review-Url: https://codereview.chromium.org/2413583002
Cr-Commit-Position: refs/heads/master@{#40290}

It will allow timeline to show JS profile on code evaluated from console.

BUG=chromium:655430

Review-Url: https://codereview.chromium.org/2413943002
Cr-Commit-Position: refs/heads/master@{#40289}

If current locale has "," as decimal separator then message for consoleAPICalled will be corrupted.

BUG=chromium:653424
R=dgozman@chromium.org

Committed: https://crrev.com/dde5ef75cbac1eb7e2dae59b246e4a0d0ba6a0f4
Review-Url: https://codereview.chromium.org/2410933002
Cr-Original-Commit-Position: refs/heads/master@{#40190}
Cr-Commit-Position: refs/heads/master@{#40288}

R=titzer@chromium.org

Review-Url: https://codereview.chromium.org/2411793006
Cr-Commit-Position: refs/heads/master@{#40287}

Review-Url: https://codereview.chromium.org/2412393003
Cr-Commit-Position: refs/heads/master@{#40286}

Revert of [turbofan] Enable super constructor inlining. (patchset #1 id:1 of https://codereview.chromium.org/2409423006/ )

Reason for revert:
As adamk@ pointed out, this is not correct. Some more changes required instead

Original issue's description:
> [turbofan] Enable super constructor inlining.
>
> When we inlined a [[Construct]] call to a subclass constructor, we can
> also inline the super constructor call (either explicit or implicit),
> since we have a concrete JSFunction constant for the subclass and we
> can thus constant-fold the %_GetSuperConstructor intrinsic. We don't
> need any guards here since the prototype of subclass constructors is
> non-writable, non-configurable in ES6.
>
> BUG=v8:5517
> R=jarin@chromium.org
>
> Committed: https://crrev.com/74158b00b3f6a1fc8676dd1f7af4d96131eb5ebe
> Cr-Commit-Position: refs/heads/master@{#40261}

TBR=jarin@chromium.org,adamk@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5517

Review-Url: https://codereview.chromium.org/2413883003
Cr-Commit-Position: refs/heads/master@{#40285}

R=ulan@chromium.org
BUG=chromium:468240

Review-Url: https://codereview.chromium.org/2418803003
Cr-Commit-Position: refs/heads/master@{#40284}

R=machenbach@chromium.org
BUG=v8:5513

Review-Url: https://codereview.chromium.org/2416433005
Cr-Commit-Position: refs/heads/master@{#40283}

BUG=

Review-Url: https://codereview.chromium.org/2417773004
Cr-Commit-Position: refs/heads/master@{#40282}

This CL also adds separate runtime call stats buckets for data handlers.

BUG=

Review-Url: https://codereview.chromium.org/2419513002
Cr-Commit-Position: refs/heads/master@{#40281}

R=ahaas@chromium.org, titzer@chromium.org
BUG=v8:5507

Review-Url: https://codereview.chromium.org/2421453002
Cr-Commit-Position: refs/heads/master@{#40280}

Revert of [heap] Cancel tasks before tearing down the heap. (patchset #2 id:20001 of https://codereview.chromium.org/2413203004/ )

Reason for revert:
Timeout on gc stress bot.

Original issue's description:
> [heap] Cancel tasks before tearing down the heap.
>
> BUG=chromium:654343
>
> Committed: https://crrev.com/9365463d6f1fc11b2369fff63ca0ac825c61eae4
> Cr-Commit-Position: refs/heads/master@{#40272}

TBR=mlippautz@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:654343

Review-Url: https://codereview.chromium.org/2414073002
Cr-Commit-Position: refs/heads/master@{#40279}

When the test is executed in user mode qemu for mips64, it fails because
the buffer is too small. Increasing the buffer fixes the problem.

BUG=
TEST=cctest/test-mark-compact/RegressJoinThreadsOnIsolateDeinit

Review-Url: https://codereview.chromium.org/2416573002
Cr-Commit-Position: refs/heads/master@{#40278}

This ports RegExpInitialize, IsRegExp, InternalMatch and InternalReplace to C++
/ TurboFan. InternalMatch is in TurboFan because it calls RegExpExecStub and
needs to construct a RegExpResult (which are, respectively, a PlatformStub and
a CodeStubAssembler function).

Except for LastMatchInfo (and GetSubstitution, which could be moved to string.js
anytime), regexp.js is now completely empty.

BUG=v8:5339

Review-Url: https://codereview.chromium.org/2409513003
Cr-Commit-Position: refs/heads/master@{#40277}

GCC on S390 31-bit treats size_t as 'long unsigned int', which
is incompatible with %d format specifier that expects an 'int'.
Using the appropriate macro (PRIuS) instead.

R=mlippautz@chromium.org, ulan@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2412563003
Cr-Commit-Position: refs/heads/master@{#40276}

This is automatically taken into account in the Parser constructor already

BUG=v8:5501

Review-Url: https://codereview.chromium.org/2409103005
Cr-Commit-Position: refs/heads/master@{#40275}

With --trace-ic flag, the function names and the source positions are
not shown for interpreted functions. Interpreted functions have an extra
frame built by bytecode handlers which has to be skipped to get the
interpreted function's frame. Also the code offsets are computed differently
for interpreted functions.

BUG=v8:4280

Review-Url: https://codereview.chromium.org/2405173007
Cr-Commit-Position: refs/heads/master@{#40274}

R=ahaas@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2411963003
Cr-Commit-Position: refs/heads/master@{#40273}

BUG=chromium:654343

Review-Url: https://codereview.chromium.org/2413203004
Cr-Commit-Position: refs/heads/master@{#40272}

A decoder error sets builder_ to null, which causes builder_->StackCheck
to segfault.

R=titzer@chromium.org

TEST=mjsunit/regress/wasm/loop-stack-check

Review-Url: https://codereview.chromium.org/2416873002
Cr-Commit-Position: refs/heads/master@{#40271}

R=ishell@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2410353004
Cr-Commit-Position: refs/heads/master@{#40270}

BUG=v8:5501

Review-Url: https://codereview.chromium.org/2417643004
Cr-Commit-Position: refs/heads/master@{#40269}

This CL fixes the debugger interface to provide correct (high-level)
information for asm.js frames.
It moves the computation of the source position from the FrameInspector
to the individual StackFrame implementations, such that we can easily
specualize it for certain frame types, and can potentially reuse this
in other locations.

Also, we are finalizing the setup of the wasm module earlier, before
executing the start function. This is required for correct stack traces
during the execution of the start function.

R=titzer@chromium.org, yangguo@chromium.org
BUG=v8:4203

Review-Url: https://codereview.chromium.org/2413693003
Cr-Commit-Position: refs/heads/master@{#40268}

BUG=chromium:648568

Review-Url: https://codereview.chromium.org/2418773002
Cr-Commit-Position: refs/heads/master@{#40267}

R=jarin@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2407153007
Cr-Commit-Position: refs/heads/master@{#40266}

As part of this, introduce a new JSObject for iterating over the elements of a
FixedArray.

R=adamk@chromium.org,bmeurer@chromium.org
TBR=ulan@chromium.org
BUG=v8:1569

Review-Url: https://codereview.chromium.org/2407423002
Cr-Commit-Position: refs/heads/master@{#40265}

BUG=v8:5501

Review-Url: https://codereview.chromium.org/2413763004
Cr-Commit-Position: refs/heads/master@{#40264}

R=bmeurer@chromium.org
BUG=v8:5439

Review-Url: https://codereview.chromium.org/2407823002
Cr-Commit-Position: refs/heads/master@{#40263}

AllocateAlignedMemory calls ReserveAlignedMemory which increments size_
value. In some cases AllocateAlignedMemory can return NULL value. Before
returning NULL, AllocateAlignedMemory should decrease size_ value.

TEST=cctest/test-spaces/LargeObjectSpace
BUG=

Review-Url: https://codereview.chromium.org/2418733002
Cr-Commit-Position: refs/heads/master@{#40262}

When we inlined a [[Construct]] call to a subclass constructor, we can
also inline the super constructor call (either explicit or implicit),
since we have a concrete JSFunction constant for the subclass and we
can thus constant-fold the %_GetSuperConstructor intrinsic. We don't
need any guards here since the prototype of subclass constructors is
non-writable, non-configurable in ES6.

BUG=v8:5517
R=jarin@chromium.org

Review-Url: https://codereview.chromium.org/2409423006
Cr-Commit-Position: refs/heads/master@{#40261}

Instead of suppressing the linker warnings and disallowing incremental
linking, just fix the annotations..

R=machenbach@chromium.org,jgruber@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2420603002
Cr-Commit-Position: refs/heads/master@{#40260}

BUG=

Review-Url: https://codereview.chromium.org/2417833002
Cr-Commit-Position: refs/heads/master@{#40259}

It belongs there more logically. In addition, this is a pre-step needed
for preparsing the parameters of a preparsed function.

In addition, move the "subtract rest parameter from arity" logic from
Parser to (Pre)?ParserFormalParameters.

BUG=v8:5515

Review-Url: https://codereview.chromium.org/2414003002
Cr-Commit-Position: refs/heads/master@{#40258}

NOTRY=true
TBR=adamk, caitp

Review-Url: https://codereview.chromium.org/2419433006
Cr-Commit-Position: refs/heads/master@{#40257}

Turn AllowsLazyParsingWithoutUnresolvedVariables into a whitelist stopping at the outer parsed context.

Any context outer to what we're parsing already has proper context allocation, so we don't need to check those scopes.

BUG=v8:5501

Review-Url: https://codereview.chromium.org/2417643003
Cr-Commit-Position: refs/heads/master@{#40256}

BUG=

Review-Url: https://codereview.chromium.org/2412043003
Cr-Commit-Position: refs/heads/master@{#40255}

In a fuzzer testcase I found locally the ast-decoder spent a lot of time
in the decoding of kExprBrTable after the decoder already found an
error. I did not add a test because the fuzzer test case did not
actually crash. It only run out of memory in the chromium fuzzer.

R=titzer@chromium.org

Review-Url: https://codereview.chromium.org/2413863003
Cr-Commit-Position: refs/heads/master@{#40254}

This moves the implementation of @@replace from regexp.js to builtins-regexp.cc
(the TurboFan fast path) and runtime-regexp.cc (slow path). The fast path
handles all cases in which the regexp itself is an unmodified JSRegExp
instance, the given 'replace' argument is not callable and does not contain any
'$' characters (i.e. we are doing a string replacement).

BUG=v8:5339

Review-Url: https://codereview.chromium.org/2398423002
Cr-Commit-Position: refs/heads/master@{#40253}

BUG=

Review-Url: https://codereview.chromium.org/2412493008
Cr-Commit-Position: refs/heads/master@{#40252}

Stack checks in loops allows to interrupt loops.

BUG=cctest/test-run-wasm-module/TestInterruptLoop
R=titzer@chromium.org, bradnelson@chromium.org

Review-Url: https://codereview.chromium.org/2405293002
Cr-Commit-Position: refs/heads/master@{#40251}