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2651 Commits

Author SHA1 Message Date
ulan@chromium.org
2c99cba38b Propagate updated offsets in BoundsCheckBbData. 
BUG=350863
LOG=Y
TEST=mjsunit/regress/regress-350863.js
R=bmeurer@chromium.org, jkummerow@chromium.org

Review URL: https://codereview.chromium.org/197823009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19923 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-14 10:02:25 +00:00
bmeurer@chromium.org
358e176d50 Add regression test for range analysis bug. 
BUG=v8:3204
LOG=y
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/200103002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19922 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-14 09:54:26 +00:00
mvstanton@chromium.org
dd28969c1c Continued fix for 351257. Reusing the feedback vector is too complex. 
Attempting to re-use the type feedback vector stored in the
SharedFunctionInfo turns out to be difficult among the various cases.
It will be much easier to do this when deferred type feedback processing
is removed, as is in the works.

Created bug v8:3212 to track re-introducing the optimization of reusing
the type vector on recompile before optimization.

The CL also brings back the type vector on the SharedFunctionInfo.

BUG=351257
LOG=Y
R=bmeurer@chromium.org, bmeuer@chromium.org

Review URL: https://codereview.chromium.org/199973004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19919 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-14 09:28:37 +00:00
yangguo@chromium.org
0f71a24f3a Correctly retain argument value when deopting from Math.round on x64. 
R=jkummerow@chromium.org
BUG=351624
LOG=N

Review URL: https://codereview.chromium.org/199013002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19896 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-13 13:57:21 +00:00
ulan@chromium.org
c64b78f6da Check that constant is an integer before getting its value in HGraphBuilder::MatchRotateRight. 
BUG=351263
LOG=N
TEST=mjsunit/regress/regress-351263
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/197803005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19890 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-13 11:50:50 +00:00
yangguo@chromium.org
4e390c64f1 Harmony: move math features to es-staging. 
R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/195123002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19886 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-13 09:51:59 +00:00
svenpanne@chromium.org
390d3a0b15 Make translation of modulus operation '--stress-opt'-proof. 
Note that we unconditionally deopt later, anyway, but our compilation
pipeline has to survive long enough to reach that place. :-/

LOG=y
BUG=352059
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/198833002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19884 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-13 09:37:16 +00:00
jarin@chromium.org
713aa33f2a Fix of argument materialization of captured heap numbers. 
The escape analysis calculates the number of slots in an object as
no-of-slots = object-size / pointer-size.  This gives 3 slots for
heap numbers on 32-bit architectures (one slot for the map, two for
the double value); however, my argument materialization code assumed
just two slots (map + value). Since Hydrogen allocates heap numbers
quite rarely, it is hard to produce a more meaningful repro than the
one provided by Clusterfuzz. Any suggestions are welcome.

The fix is simple - we just read out all extra slots (beyond the map
and the double) for heap numbers.

R=mstarzinger@chromium.org
BUG=351315
LOG=N

Review URL: https://codereview.chromium.org/196283004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19874 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-13 07:17:37 +00:00
adamk@chromium.org
8bd05193c7 Reland "Enable Object.observe by default" again 
This re-re-re-lands enabling Object.observe. The Chromium tests that
failed last time this was rolled into Chromium have been disabled in
https://src.chromium.org/viewvc/chrome?view=revision&revision=256706

This patch should be safe to merge once that lands.

BUG=v8:2409
LOG=Y
TBR=rossberg@chromium.org,dslomov@chromium.org,rafaelw@chromium.org

Review URL: https://codereview.chromium.org/198383002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19868 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-13 00:20:06 +00:00
jkummerow@chromium.org
f9ee4f19b4 Use intrinsics for builtin ArrayBuffer property accesses 
BUG=chromium:351787
LOG=y
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/197793003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19862 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-12 19:25:40 +00:00
svenpanne@chromium.org
be328fd4ce Disable special handling of flooring division by constant until it is fixed for real. 
Added a test to check the various division-like operations more exhaustively.

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

Review URL: https://codereview.chromium.org/194863002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19852 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-12 14:28:59 +00:00
verwaest@chromium.org
8735adb2c4 Don't fast RemoveArrayHoles in case of arguments arrays. 
BUG=351645
LOG=n
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/197043004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19848 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-12 13:42:18 +00:00
mvstanton@chromium.org
7477bc39ca 350884: KeyedStoreIC miss didn't handle a transitioning case. 
It's possible to get a transitioned map with no links to the origin
map if it's a shared map. Code in KeyedStoreIC::StoreElementStub
assumes it can check if two maps are in the same family by
traversing the transition array. Long term, the "family" relationship
should be recognized with the Normalized Map Cache. For now, allow
the IC to remain monomorphic in this case if the receiver map and
the previous receiver map are the same.

Filed V8 issue 3210 (https://code.google.com/p/v8/issues/detail?id=3210)
to track the issue with the Normalized Map Cache.

BUG=350884
LOG=N
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/194623005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19847 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-12 13:35:40 +00:00
jkummerow@chromium.org
105c1e08b7 Fix HIsSmiAndBranch::KnownSuccessorBlock() by deleting it 
Constants can still change their representation, so we cannot determine reachability of blocks based on their Smi-ness

BUG=chromium:351320
LOG=y
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/196943002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19836 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-12 10:14:29 +00:00
danno@chromium.org
ae1669b501 Fix handling of polymorphic array accesses with constant index 
R=jkummerow@chromium.org
BUG=chromium:351319
LOG=Y

Review URL: https://codereview.chromium.org/196353004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19835 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-12 10:11:38 +00:00
jkummerow@chromium.org
8a1812f252 Fix lazy deopt after tagged binary ops 
Also add policing code to ensure that optimized frames can in fact lazily deopt
at their respective current PC when we patch them for lazy bailout.

BUG=chromium:350434
LOG=y
R=jarin@chromium.org

Review URL: https://codereview.chromium.org/194703008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19834 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-12 09:59:36 +00:00
dslomov@chromium.org
f6dac13dcb Revert "Enable Object.observe by default" 
This reverts commit r19734 for breeaking ChromiumOS browser tests.
'OpenSpecialTypes/FileManagerBrowserTest.Test/3' started to time out,
bisecting the roll led to this change.
http://build.chromium.org/p/chromium.chromiumos/builders/Linux%20ChromiumOS%20Tests%20%282%29/builds/22224

TBR=rafaelw@chromium.org,rossberg@chromium.org
BUG=v8:2409
LOG=Y

Review URL: https://codereview.chromium.org/195123005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19816 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-11 18:15:44 +00:00
rossberg@chromium.org
85800eff3f Fix issue with getOwnPropertySymbols and hidden properties 
When getting the symbols of an object we need to ignore the hidden
properties of the prototype object since the hidden properties are
represented by a single string key and we will not include that hidden
string in the found names.

BUG=350864
LOG=Y
R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/192883005

Patch from Erik Arvidsson <arv@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19813 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-11 16:46:35 +00:00
dcarney@chromium.org
62fc099334 fix bad access check check 
R=verwaest@chromium.org

BUG=

Review URL: https://codereview.chromium.org/195163002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19804 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-11 15:12:47 +00:00
rossberg@chromium.org
3f702d4bf9 Mode clean-up pt 1: rename classic/non-strict mode to sloppy mode 
R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/177683002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19799 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-11 14:39:08 +00:00
yangguo@chromium.org
6e1507331e Fix bug in constant folding object comparisons. 
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/195063002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19798 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-11 13:34:01 +00:00
yangguo@chromium.org
dda0aa88b0 Revert "Mark mjsunit/string-case as flaky." 
This reverts r19760 since the issue has been fixed in r19755.

R=dslomov@google.com, dslomov@chromium.org
BUG=v8:3208
LOG=N

Review URL: https://codereview.chromium.org/194823002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19793 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-11 11:38:53 +00:00
mvstanton@chromium.org
819d9f62d0 Fix for 350887: CHECK failure on new_length->IsSmi() 
In ElementsAccessorBase::SetLengthImpl for a dictionary array, we try to
optimize setting array length if the new length is a smi. However, we
refuse to set an array length to less than the index of the highest
non-configurable array element. This index may be outside of smi range.

Handle this case accordingly.

BUG=350887
LOG=N
R=dslomov@chromium.org

Review URL: https://codereview.chromium.org/194803002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19787 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-11 10:30:10 +00:00
yangguo@chromium.org
1634e7de38 Fix assertion in RegExp parser to correctly expect stack overflow. 
Advance() always checks for stack overflow. If stack indeed overflowed,
current() would hold the kEndMarker. ParseOctalLiteral does not expect
this in the assertion, which causes assertion failure.

R=mvstanton@chromium.org
BUG=350865
LOG=N

Review URL: https://codereview.chromium.org/192773002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19764 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-10 15:52:10 +00:00
yangguo@chromium.org
e25d51cc85 Fix constant folding of %_IsMinusZero. 
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/190793015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19762 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-10 15:06:54 +00:00
dslomov@chromium.org
9eefbda27f Mark mjsunit/string-case as flaky. 
BUG=v8:3208
LOG=N
R=machenbach@chromium.org

Review URL: https://codereview.chromium.org/192573004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19760 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-10 14:52:05 +00:00
yangguo@chromium.org
78d23e5662 Implement KnownSuccessor method to some control instructions. 
R=jkummerow@chromium.org
BUG=v8:3118
LOG=N

Review URL: https://codereview.chromium.org/174863002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19759 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-10 14:50:01 +00:00
verwaest@chromium.org
1180803953 Reland and fix "Allow ICs to be generated for own global proxy." 
BUG=
R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/176793003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19756 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-10 12:23:05 +00:00
rossberg@chromium.org
710ee827b5 Promise.all and Promise.race should reject non-array parameter. 
Promise.all and Promise.race should reject the returned Promise if an
invalid parameter is given.
Since they don't support iterable now, they should reject the Promise
if a non-array parameter is given.

BUG=347453
LOG=Y
R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/182613003

Patch from Yutaka Hirano <yhirano@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19754 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-10 12:01:06 +00:00
bmeurer@chromium.org
bf86e624d4 Reland "Handle non-power-of-2 divisors in division-like operations". 
Fixed the flooring div bug and added a test case.

R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/191293012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19749 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-10 10:39:17 +00:00
rafaelw@chromium.org
6503dfb72b Reland "Enable Object.observe by default" 
Original Issue: https://codereview.chromium.org/183683022/

TBR=rossberg
BUG=v8:2409
LOG=Y

Review URL: https://codereview.chromium.org/189513010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19736 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-08 04:41:06 +00:00
rafaelw@chromium.org
0cc44c14e5 Revert "Enable Object.observe by default" 
TBR=rossberg
BUG=

Review URL: https://codereview.chromium.org/190853007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19735 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-08 03:54:42 +00:00
rafaelw@chromium.org
dcf9842e07 Enable Object.observe by default 
R=rossberg@chromium.org, rossberg
BUG=v8:2409
LOG=Y

Review URL: https://codereview.chromium.org/183683022

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19734 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-08 02:47:53 +00:00
yangguo@chromium.org
4f15fd2977 Reland "Introduce intrinsics for double values in Javascript." 
This relands r19704 with a fix to the test case.

R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/189823003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19723 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-07 14:58:41 +00:00
ulan@chromium.org
06af80d42d Introduce Runtime_GetAllScopesDetails to get all scopes at once for a frame. 
This will reduce heavy ScopeIterator instantiations.
Once incorporated into chromium, will give 30% speed boost.

BUG=chromium:340285
LOG=Y
R=ulan@chromium.org, Yang, rossberg, ulan

Review URL: https://codereview.chromium.org/181063008

Patch from Andrey Adaykin <aandrey@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19717 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-07 11:03:35 +00:00
yangguo@chromium.org
143902bebf Revert "Introduce intrinsics for double values in Javascript." 
This reverts r19704.

R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/189533008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19710 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-07 09:49:28 +00:00
verwaest@chromium.org
8a3d715250 Revert "Use Representation::Integer32() for smi types on 32-bit-tagged systems." 
Due to performance regression.

BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/189843006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19709 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-07 09:29:07 +00:00
yangguo@chromium.org
2aefde4443 Introduce intrinsics for double values in Javascript. 
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/178583006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19704 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-07 09:05:10 +00:00
yangguo@chromium.org
ea8368f471 Use fast path for sliced and external strings in ConvertCase. 
R=dcarney@chromium.org
BUG=v8:3180
LOG=N

Review URL: https://codereview.chromium.org/180063002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19699 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-07 08:36:18 +00:00
ishell@chromium.org
997ce05289 Fix for failing asserts in HBoundsCheck code generation on x64: use proper cmp operation width instead of asserting that Integer32 values should be zero extended. Similar to chromium:345820. 
BUG=349465
LOG=N
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/188703002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19694 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-06 16:22:47 +00:00
jkummerow@chromium.org
1cc0bafc07 Fix HConstants with Smi-ranged HeapNumber values 
BUG=chromium:349878
LOG=y
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/186123003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19693 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-06 16:21:09 +00:00
ulan@chromium.org
5af7d10af5 Mark mjsunit/whitespaces as slow and timeout for a64. 
BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/182253008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19692 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-06 14:15:40 +00:00
mvstanton@chromium.org
6115a006fd Bugfix for 349874: we incorrectly believe we saw a growing store 
When we set an out of bounds array index, the index might be so large that
it causes the array to go to dictionary mode. It's better to avoid
"learning" that this was a growing store in that case.

This fix also partially reverts a fix for bug 347543, as this fix is
comprehensive and satisfies that repro case as well (partial revert of
v19591).

BUG=349874
LOG=N
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/188643002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19691 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-06 13:07:51 +00:00
verwaest@chromium.org
cd6f3ef088 Only use the non-strict-arguments-stub if the store site is non-strict. 
BUG=349874
LOG=N
R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/176843018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19690 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-06 12:19:06 +00:00
jkummerow@chromium.org
5ea3f0004a Let HTransitionElementsKind take part in RestoreActualValues phase 
BUG=chromium:349853
LOG=n
R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/183753005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19689 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-06 12:13:49 +00:00
yangguo@chromium.org
285f253af1 Remove outdated assertion scope. 
R=jkummerow@chromium.org
BUG=349870
LOG=N

Review URL: https://codereview.chromium.org/182003004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19687 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-06 11:51:53 +00:00
yangguo@chromium.org
e2e2f4050d Fix issues with JSON stringify replacer array 
If the replacer array contains a property key we should include the
property even if the property is non enumerable or if it is a non own
property.

String and Number wrappers in the replacer array should be treated as
string and number values.

R=yangguo@chromium.org
BUG=v8:3200, v8:3201
LOG=Y

Review URL: https://codereview.chromium.org/187053003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19685 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-06 09:50:53 +00:00
verwaest@chromium.org
7bf33c53eb Use Representation::Integer32() for smi types on 32-bit-tagged systems. 
BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/187353005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19684 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-06 09:49:10 +00:00
verwaest@chromium.org
f913c3b492 Also delete force representations that have no uses. 
BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/187773002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19683 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-06 09:47:27 +00:00
jarin@chromium.org
52fd520c96 Fix materialization of captured objects in adapted arguments. 
R=mstarzinger@chromium.org
BUG=348512
LOG=N

Review URL: https://codereview.chromium.org/183063006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19676 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-03-05 12:57:18 +00:00