Commits · cfb4d1e6d7c94b55e518ae8daf28c2a5b1479dfa · Linshizhi / V8

25 May, 2016 33 commits

[wasm] Check that type intersections don't yield empty. · cfb4d1e6

bradnelson authored May 25, 2016

Intersection of types is used in several places,
if it yields the empty set, this indicates a type mismatch.
We should emit an error in this case.

Add the RECURSE() macro around IntersectResult to allow errors to propagate immediately.

BUG=614291
R=ahaas@chromium.org
TEST=asm-wasm
LOG=N

Review-Url: https://codereview.chromium.org/2011873002
Cr-Commit-Position: refs/heads/master@{#36525}

cfb4d1e6

Revert of "[heap] Fine-grained JSArrayBuffer tracking" (patchset #3 id:80001... · b9b0868e

mlippautz authored May 25, 2016

Revert of "[heap] Fine-grained JSArrayBuffer tracking" (patchset #3 id:80001 of https://codereview.chromium.org/2007253002/ )

Reason for revert:
Breaks webgl2 conformance tests
  https://bugs.chromium.org/p/chromium/issues/detail?id=614730

Original issue's description:
> Reland of "[heap] Fine-grained JSArrayBuffer tracking"
>
> Track based on JSArrayBuffer addresses on pages instead of the attached
> backing store.
>
> Details of tracking:
> - Scavenge: New space pages are processes in bulk on the main thread
> - MC: Unswept pages are processed in bulk in parallel. All other pages
>   are processed by the sweeper concurrently.
>
> This reverts commit 93fe04af.
>
> R=hpayer@chromium.org
> BUG=chromium:611688
> LOG=N
> CQ_EXTRA_TRYBOTS=tryserver.v8:v8_linux_arm64_gc_stress_dbg,v8_linux_gc_stress_dbg,v8_mac_gc_stress_dbg,v8_linux64_tsan_rel,v8_mac64_asan_rel
>
> Committed: https://crrev.com/863d015e573798e263b35b31d2ab979739706533
> Cr-Commit-Position: refs/heads/master@{#36513}

TBR=hpayer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:611688

Review-Url: https://codereview.chromium.org/2011563003
Cr-Commit-Position: refs/heads/master@{#36524}

b9b0868e

[wasm] Refactor encoder.h to use a proper buffer and remove OldFunctions section. · 3412af0b

titzer authored May 25, 2016

This removes the last use of the old_functions section, which greatly
simplifies encoding.

R=bradnelson@chromium.org,aseemgarg@chromium.org,mtrofin@chromium.org

BUG=

Review-Url: https://codereview.chromium.org/2014533003
Cr-Commit-Position: refs/heads/master@{#36523}

3412af0b

PPC: [build] Fix a clang warning · 4a4f2537

jyan authored May 25, 2016

Port a23222ed

Original commit message:
    For cross-compiler-compatibility and standards compliance %p
    requires a void*, rather than any pointer type.

R=machenbach@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com, mbrandy@us.ibm.com
BUG=chromium:474921
LOG=N

Review-Url: https://codereview.chromium.org/2010743002
Cr-Commit-Position: refs/heads/master@{#36522}

4a4f2537

Revert of [gn] Add unittests (patchset #4 id:60001 of https://codereview.chromium.org/2011853002/ ) · 7ceb9101

hablich authored May 25, 2016

Reason for revert:
Speculative revert because of roll block:
https://codereview.chromium.org/2004203004/

Original issue's description:
> [gn] Add unittests
>
> BUG=chromium:474921
> NOTRY=true
>
> Committed: https://crrev.com/67e549ec5b34ad02506abb2720c6a0851ae31f5e
> Cr-Commit-Position: refs/heads/master@{#36510}

TBR=vogelheim@chromium.org,bmeurer@chromium.org,machenbach@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:474921

Review-Url: https://codereview.chromium.org/2004373005
Cr-Commit-Position: refs/heads/master@{#36521}

7ceb9101

Revert of [gn] Add cctest (patchset #1 id:1 of https://codereview.chromium.org/2007143003/ ) · 73db38c5

hablich authored May 25, 2016

Reason for revert:
Reason for revert:
Speculative revert because of roll block:
https://codereview.chromium.org/2004203004/

Original issue's description:
> [gn] Add cctest
>
> BUG=chromium:474921
> NOTRY=true
>
> Committed: https://crrev.com/52a6fced896e3f64ac56eb57bcdea78393642e0c
> Cr-Commit-Position: refs/heads/master@{#36517}

TBR=vogelheim@chromium.org,machenbach@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:474921

Review-Url: https://codereview.chromium.org/2008543007
Cr-Commit-Position: refs/heads/master@{#36520}

73db38c5

PPC: [build] Fix a clang warning · 8b295a0e

bjaideep authored May 25, 2016

Port a23222ed

Original commit message:

    For cross-compiler-compatibility and standards compliance %p
    requires a void*, rather than any pointer type.

R=machenbach@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com, mbrandy@us.ibm.com

BUG=chromium:474921
LOG=N

Review-Url: https://codereview.chromium.org/2009653002
Cr-Commit-Position: refs/heads/master@{#36519}

8b295a0e

S390: Collect call counts for constructor calls, too. · 4ce6c36e

jyan authored May 25, 2016

Port a6ddbef0

Original commit message:

    The TurboFan inliner makes use of these counts.

R=mvstanton@chromium.org, joransiu@ca.ibm.com, michael_dawson@ca.ibm.com, mbrandy@us.ibm.com
BUG=

Review-Url: https://codereview.chromium.org/2014563002
Cr-Commit-Position: refs/heads/master@{#36518}

4ce6c36e

[gn] Add cctest · 52a6fced

machenbach authored May 25, 2016

BUG=chromium:474921
NOTRY=true

Review-Url: https://codereview.chromium.org/2007143003
Cr-Commit-Position: refs/heads/master@{#36517}

52a6fced

[wasm] Added DCHECKs that the input of the Int64Lowering is not null. · 229b66a5

ahaas authored May 25, 2016

R=bradnelson@chromium.org, titzer@chromium.org

Review-Url: https://codereview.chromium.org/2011893002
Cr-Commit-Position: refs/heads/master@{#36516}

229b66a5

[wasm] Delay throwing an error until the sequential phase of the compilation. · a51d0585

ahaas authored May 25, 2016

Signalling an error to the ErrorThrower causes a heap allocation and should
therefore not happen in the parallel phase of the compilation.

Additionally I did some refactoring: I pulled the function
BuildGraphForWasmFunction into the WasmCompilationUnit and as a consequence
I can use the class fields directly instead of passing them as parameters.

BUG=chromium::614291
LOG=N
R=titzer@chromium.org, bradnelson@chromium.org

Review-Url: https://codereview.chromium.org/2007113004
Cr-Commit-Position: refs/heads/master@{#36515}

a51d0585

[json] support replacer function in BasicJsonStringifier. · abdd1077

yangguo authored May 25, 2016

R=cbruni@chromium.org

Committed: https://crrev.com/53d4594b849bed40d96389f00b6ce0ca1fff05bb
Cr-Commit-Position: refs/heads/master@{#36499}

Review-Url: https://codereview.chromium.org/2010533002
Cr-Commit-Position: refs/heads/master@{#36514}

abdd1077

Reland of "[heap] Fine-grained JSArrayBuffer tracking" · 863d015e

mlippautz authored May 25, 2016

Track based on JSArrayBuffer addresses on pages instead of the attached
backing store.

Details of tracking:
- Scavenge: New space pages are processes in bulk on the main thread
- MC: Unswept pages are processed in bulk in parallel. All other pages
  are processed by the sweeper concurrently.

This reverts commit 93fe04af.

R=hpayer@chromium.org
BUG=chromium:611688
LOG=N
CQ_EXTRA_TRYBOTS=tryserver.v8:v8_linux_arm64_gc_stress_dbg,v8_linux_gc_stress_dbg,v8_mac_gc_stress_dbg,v8_linux64_tsan_rel,v8_mac64_asan_rel

Review-Url: https://codereview.chromium.org/2007253002
Cr-Commit-Position: refs/heads/master@{#36513}

863d015e

Revert of [json] support replacer function in BasicJsonStringifier. (patchset... · 7012babb

yangguo authored May 25, 2016

Revert of [json] support replacer function in BasicJsonStringifier. (patchset #4 id:60001 of https://codereview.chromium.org/2010533002/ )

Reason for revert:
Layout test failure:

https://build.chromium.org/p/client.v8.fyi/builders/V8-Blink%20Linux%2064/builds/7029

Original issue's description:
> [json] support replacer function in BasicJsonStringifier.
>
> R=cbruni@chromium.org
>
> Committed: https://crrev.com/53d4594b849bed40d96389f00b6ce0ca1fff05bb
> Cr-Commit-Position: refs/heads/master@{#36499}

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

Review-Url: https://codereview.chromium.org/2008293002
Cr-Commit-Position: refs/heads/master@{#36512}

7012babb

[turbofan] Remove the EmptyFrameState caching on JSGraph. · dd609a5d

bmeurer authored May 25, 2016

Caching nodes with mutable inputs is a bad idea and already blew up
twice now, so in order to avoid further breakage, let's kill the
EmptyFrameState caching on JSGraph completely and only cache the empty
state values there.

We can remove the hacking from JSTypedLowering completely once we have
the PlainPrimitiveToNumber in action.

R=jarin@chromium.org

Review-Url: https://codereview.chromium.org/2006423003
Cr-Commit-Position: refs/heads/master@{#36511}

dd609a5d

[gn] Add unittests · 67e549ec

machenbach authored May 25, 2016

BUG=chromium:474921
NOTRY=true

Review-Url: https://codereview.chromium.org/2011853002
Cr-Commit-Position: refs/heads/master@{#36510}

67e549ec

[interpreter] Address naming inconsistencies in bytecodes. · 31c77b13

oth authored May 25, 2016

BUG=v8:4280
LOG=N

Review-Url: https://codereview.chromium.org/2007023003
Cr-Commit-Position: refs/heads/master@{#36509}

31c77b13

[turbofan] Avoid unnecessary copying of nodes during inlining. · a436e3dd

bmeurer authored May 25, 2016

Previously we first created a temporary graph for the inlinee and then
copied over all the nodes to the actual graph. This however introduces
unnecessary complexity, and we can instead just create the inlinee
inside the target graph.

R=jarin@chromium.org

Review-Url: https://codereview.chromium.org/2006353003
Cr-Commit-Position: refs/heads/master@{#36508}

a436e3dd

[interpreter] Introduce fused bytecodes for common sequences. · 25b3fe79

oth authored May 25, 2016

This change introduces five fused bytecodes for common bytecode
sequences on popular websites. These are LdrNamedProperty,
LdrKeyedProperty, LdrGlobal, LdrContextSlot, and LdrUndefined. These
load values into a destination register operand instead of the
accumulator. They are emitted by the peephole optimizer.

BUG=v8:4280
LOG=N

Review-Url: https://codereview.chromium.org/1985753002
Cr-Commit-Position: refs/heads/master@{#36507}

25b3fe79

Add Wasm SIMD opcodes. · 0f777211

gdeepti authored May 25, 2016

  - Add Simd128 type to Wasm AST types
  - Seperate out generic SIMD Machine ops
  - Opcodes added as per Wasm SIMD opcode table prototype. All opcodes
  except Bool8x16, Bool16x8 and S128 Load/Store opcodes added.

Review-Url: https://codereview.chromium.org/2009553002
Cr-Commit-Position: refs/heads/master@{#36506}

0f777211

[turbofan] The BytecodeGraphBuilder should never insert the empty frame state. · a329afda

bmeurer authored May 25, 2016

It's always possible to deoptimize to Ignition from TurboFan, and we
don't use Ignition for asm.js code, so there's no need to have the empty
frame state magic in the BytecodeGraphBuilder.

R=mstarzinger@chromium.org
BUG=v8:4280

Review-Url: https://codereview.chromium.org/2008243002
Cr-Commit-Position: refs/heads/master@{#36505}

a329afda

Revert of "[heap] Fine-grained JSArrayBuffer tracking" (patchset #6 id:220001... · 93fe04af

mlippautz authored May 25, 2016

Revert of "[heap] Fine-grained JSArrayBuffer tracking" (patchset #6 id:220001 of https://codereview.chromium.org/2005723005/ )

Reason for revert:
Breaking TSAN
  https://uberchromegw.corp.google.com/i/client.v8/builders/V8%20Linux64%20TSAN/builds/9741/steps/Ignition%20-%20turbofan%20%28flakes%29/logs/FixedUint32Array

Original issue's description:
> Reland of "[heap] Fine-grained JSArrayBuffer tracking"
>
> Track based on JSArrayBuffer addresses on pages instead of the attached
> backing store.
>
> Details of tracking:
> - Scavenge: New space pages are processes in bulk on the main thread
> - MC: Unswept pages are processed in bulk in parallel. All other pages
>   are processed by the sweeper concurrently.
>
> This reverts commit d2dff032.
>
> R=hpayer@chromium.org
> BUG=chromium:611688
> LOG=N
> CQ_EXTRA_TRYBOTS=tryserver.v8:v8_linux_arm64_gc_stress_dbg,v8_linux_gc_stress_dbg,v8_mac_gc_stress_dbg,v8_linux64_tsan_rel,v8_mac64_asan_rel
>
> Committed: https://crrev.com/b5704bc1e6ba74c9ca975f5d58f5b2dc60261457
> Cr-Commit-Position: refs/heads/master@{#36495}

TBR=hpayer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:611688

Review-Url: https://codereview.chromium.org/2011863002
Cr-Commit-Position: refs/heads/master@{#36504}

93fe04af

[wasm] Do not try start linking if the compilation failed. · f768e53c

ahaas authored May 25, 2016

BUG=chromium:614291
LOG=N
R=titzer@chromium.org, bradnelson@chromium.org

Review-Url: https://codereview.chromium.org/2009823002
Cr-Commit-Position: refs/heads/master@{#36503}

f768e53c

Reland of [keys] Simplify KeyAccumulator (patchset #1 id:1 of... · 667188b1

cbruni authored May 25, 2016

Reland of [keys] Simplify KeyAccumulator (patchset #1 id:1 of https://codereview.chromium.org/2010593002/ )

Reason for revert:
relanding, fixed handle dereferencing

Original issue's description:
> Revert of [keys] Simplify KeyAccumulator (patchset #15 id:280001 of https://codereview.chromium.org/1995263002/ )
>
> Reason for revert:
> https://build.chromium.org/p/client.v8/builders/V8%20Mac%20GC%20Stress/builds/6248
>
> Original issue's description:
> > [keys] Simplify KeyAccumulator
> >
> > - Use KeyAccumulator::GetKeys directly instead of JSReceiver::GetKeys
> > - Revert KeyAccumulator to single OrderedHashSet implementation.
> > - Convert the OrderedHashSet in-place to a FixedArray
> > - IndexedInterceptor indices are no longer combined and sorted with the object indices
> >
> > BUG=
> >
> > Committed: https://crrev.com/d3324df017046bcde247a5aef6d1b59bfae5908f
> > Cr-Commit-Position: refs/heads/master@{#36485}
>
> TBR=jkummerow@chromium.org,verwaest@chromium.org,cbruni@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=
>
> Committed: https://crrev.com/893524b53d43df63bca6cb9b7244d21771fadb0b
> Cr-Commit-Position: refs/heads/master@{#36486}

TBR=jkummerow@chromium.org,verwaest@chromium.org,machenbach@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review-Url: https://codereview.chromium.org/2014523002
Cr-Commit-Position: refs/heads/master@{#36502}

667188b1

X87: [x64/ia32] Deal with the non-transitivity of... · 4d9149e1

zhengxing.li authored May 25, 2016

X87: [x64/ia32] Deal with the non-transitivity of InstructionSelector::CanCover() when folding loads into branches.

    port 0d22e7e4 (r36482)

    original commit message:
    Sequences like:

    1: Load[kRepWord32|kTypeInt32](<address>, ...)
    2: Word32And(1, <constant>)
    3: Word32Equal(2, <another constant>)
    4: Store[(kRepWord32 : NoWriteBarrier)](<address>, <value>)
    5: Branch[None](3, ...) -> B1, B2

    where #1 and #4 refer to the same memory location, are problematic because in VisitBranch we assume that 'InstructionSelector::CanCover()' is transitive.

    What happens is that CanCover(5, 3) is true (3 is a pure op), and so are CanCover(3, 2), CanCover(2, 1), but the effect level of 5 and 3 never gets checked because 3 is a pure op. Upon VisitBranch, we

    mov [address], <value>
    test [address], <another constant>

    With this patch, it becomes:

    mov reg, [address]
    mov [address], <value>
    test reg, <another constant>

BUG=

Review-Url: https://codereview.chromium.org/2006223004
Cr-Commit-Position: refs/heads/master@{#36501}

4d9149e1

Refactor duplicate logic in Ast{Traversal,Expression}Visitor · eb488c1f

jgruber authored May 25, 2016

Add stack overflow checks to AstTraversalVisitor, and let
AstExpressionVisitor reuse traversal logic from AstTraversalVisitor.

R=yangguo@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2004363002
Cr-Commit-Position: refs/heads/master@{#36500}

eb488c1f

[json] support replacer function in BasicJsonStringifier. · 53d4594b

yangguo authored May 25, 2016

R=cbruni@chromium.org

Review-Url: https://codereview.chromium.org/2010533002
Cr-Commit-Position: refs/heads/master@{#36499}

53d4594b

X87: Collect call counts for constructor calls, too. · 4fa379dc

zhengxing.li authored May 25, 2016

  port a6ddbef0 (r36472)

  original commit message:
  The TurboFan inliner makes use of these counts.

BUG=

Review-Url: https://codereview.chromium.org/2013453003
Cr-Commit-Position: refs/heads/master@{#36498}

4fa379dc

[wasm] Implement an interpreter for WASM. · e4bb7ff9

titzer authored May 25, 2016

This interpreter directly decodes and executes WASM binary code for
the purpose of supporting low-level debugging. It is not currently
integrated into the main WASM implementation.

R=ahaas@chromium.org,clemensh@chromium.org,rossberg@chromium.org,binji@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/1972153002
Cr-Commit-Position: refs/heads/master@{#36497}

e4bb7ff9

[heap] Fix PromotionQueue test for smaller page size · 39d08198

mlippautz authored May 25, 2016

R=hpayer@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2009793002
Cr-Commit-Position: refs/heads/master@{#36496}

39d08198

Reland of "[heap] Fine-grained JSArrayBuffer tracking" · b5704bc1

mlippautz authored May 25, 2016

Track based on JSArrayBuffer addresses on pages instead of the attached
backing store.

Details of tracking:
- Scavenge: New space pages are processes in bulk on the main thread
- MC: Unswept pages are processed in bulk in parallel. All other pages
  are processed by the sweeper concurrently.

This reverts commit d2dff032.

R=hpayer@chromium.org
BUG=chromium:611688
LOG=N
CQ_EXTRA_TRYBOTS=tryserver.v8:v8_linux_arm64_gc_stress_dbg,v8_linux_gc_stress_dbg,v8_mac_gc_stress_dbg,v8_linux64_tsan_rel,v8_mac64_asan_rel

Review-Url: https://codereview.chromium.org/2005723005
Cr-Commit-Position: refs/heads/master@{#36495}

b5704bc1

MIPS: Fix 'Collect call counts for constructor calls, too.' · f908ff22

balazs.kilvady authored May 25, 2016

Port a6ddbef0

Original commit message:
The TurboFan inliner makes use of these counts.

BUG=

Review-Url: https://codereview.chromium.org/2009603002
Cr-Commit-Position: refs/heads/master@{#36494}

f908ff22

Update V8 DEPS. · cc518d39

v8-autoroll authored May 25, 2016

Rolling v8/build to ac721839502afb41e44649a6513b866e0ad1c8a8

TBR=machenbach@chromium.org,vogelheim@chromium.org,hablich@chromium.org

Review-Url: https://codereview.chromium.org/2011753002
Cr-Commit-Position: refs/heads/master@{#36493}

cc518d39

24 May, 2016 7 commits

S390: [stubs] Convert Internal/ArraySingleArgumentsConstructor to a TurboFan stub · 7d05fc32

jyan authored May 24, 2016

Port 02c8b6f7

R=danno@chromium.org, joransiu@ca.ibm.com, bjaideep@ca.ibm.com, michael_dawson@ca.ibm.com, mbrandy@us.ibm.com
BUG=

Review-Url: https://codereview.chromium.org/2005213004
Cr-Commit-Position: refs/heads/master@{#36492}

7d05fc32

S390: [cleanup] Drop FLAG_eliminate_prototype_chain_checks · 0223cbd6

jyan authored May 24, 2016

port eac1b38d

Original Commit Message:
    This flag has been on by default for a while, along with
    FLAG_track_prototype_users which provides the prerequisite
    infrastructure. We are now sure that this is the direction
    we want to go in, so in order to simplify the code, this CL
    drops the respective flag-off code paths.

R=jkummerow@chromium.org, joransiu@ca.ibm.com, michael_dawson@ca.ibm.com, mbrandy@us.ibm.com
BUG=

Review-Url: https://codereview.chromium.org/2004173003
Cr-Commit-Position: refs/heads/master@{#36491}

0223cbd6

PPC: Collect call counts for constructor calls, too. · 541a8380

bjaideep authored May 24, 2016

Port a6ddbef0

Original commit message:

    The TurboFan inliner makes use of these counts.

R=mvstanton@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com, mbrandy@us.ibm.com

BUG=
LOG=N

Review-Url: https://codereview.chromium.org/2011573002
Cr-Commit-Position: refs/heads/master@{#36490}

541a8380

[test] add debugger scopes testing for async functions · 38c6fb82

caitpotter88 authored May 24, 2016

BUG=v8:4483
R=littledan@chromium.org, yangguo@chromium.org

Review-Url: https://codereview.chromium.org/2005613002
Cr-Commit-Position: refs/heads/master@{#36489}

38c6fb82

S390: Added remaining generated instructions to S390 simulator EVALUATE code. · 9159684e

bryleun authored May 24, 2016

All EVALUATE functions for unimplemented instructions will now throw an UNIMPLEMENTED error if called.

R=joransiu@ca.ibm.com,michael_dawson@ca.ibm.com,mbrandy@us.ibm.com,jyan@ca.ibm.com

BUG=

Review-Url: https://codereview.chromium.org/2005493002
Cr-Commit-Position: refs/heads/master@{#36488}

9159684e

Reorder test262.status slightly to blame the correct bug for Function.name · 36275367

adamk authored May 24, 2016

R=littledan@chromium.org

Review-Url: https://codereview.chromium.org/2007703003
Cr-Commit-Position: refs/heads/master@{#36487}

36275367

Revert of [keys] Simplify KeyAccumulator (patchset #15 id:280001 of... · 893524b5

machenbach authored May 24, 2016

Revert of [keys] Simplify KeyAccumulator (patchset #15 id:280001 of https://codereview.chromium.org/1995263002/ )

Reason for revert:
https://build.chromium.org/p/client.v8/builders/V8%20Mac%20GC%20Stress/builds/6248

Original issue's description:
> [keys] Simplify KeyAccumulator
>
> - Use KeyAccumulator::GetKeys directly instead of JSReceiver::GetKeys
> - Revert KeyAccumulator to single OrderedHashSet implementation.
> - Convert the OrderedHashSet in-place to a FixedArray
> - IndexedInterceptor indices are no longer combined and sorted with the object indices
>
> BUG=
>
> Committed: https://crrev.com/d3324df017046bcde247a5aef6d1b59bfae5908f
> Cr-Commit-Position: refs/heads/master@{#36485}

TBR=jkummerow@chromium.org,verwaest@chromium.org,cbruni@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review-Url: https://codereview.chromium.org/2010593002
Cr-Commit-Position: refs/heads/master@{#36486}

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