This is not covered by test262 yet, but it really makes sense and matches Firefox's behaviour.

TEST=mjsunit/define-properties.js
Review URL: http://codereview.chromium.org/8349031

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9694 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=svenpanne@chromium.org
BUG=chromium:100702
TEST=mjsunit/regress/regress-100702

Review URL: http://codereview.chromium.org/8347034

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9693 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
TEST=

Review URL: http://codereview.chromium.org/8341008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9692 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This fixes updating of property attributes for data elements when
attributes are already present on a dictionary element but get removed
by a subsequent redefinition of that element.

R=rossberg@chromium.org
BUG=v8:1772
TEST=test262/15.2.3.6-4-82-18

Review URL: http://codereview.chromium.org/8337017

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9691 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/8329022

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9690 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Android releases.  See http://code.google.com/p/v8/issues/detail?id=1780
Review URL: http://codereview.chromium.org/8347032

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9689 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This time, we initially leave the HTypeof instruction in the Hydrogen graph,
even for the special cases. We later try to remove this instruction (and any
HConstant) in the canonicalization pass, if possible. Always removing the
HTypeof during the initial graph construction is wrong if e.g. it is used in an
HSimulate.

The removals can be generalized a bit, but this will happen in a separate CL.

TEST=mjsunit/optimized-typeof.js
Review URL: http://codereview.chromium.org/8334021

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9688 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

The new helper avoids expensive FindCodeForInnerPointer invocation when we have
the host code object available. It is used when patching stack checks.

Also some comments on the ARM platform are corrected.
Review URL: http://codereview.chromium.org/8330021

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9687 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=erik.corry@gmail.com
BUG=v8:1773

Review URL: http://codereview.chromium.org/8337014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9686 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This fixes updating of property attributes for getters and setters on
dictionary elements while redefining. This just updates the property
details on the existing element.

R=rossberg@chromium.org
BUG=v8:1772
TEST=test262

Review URL: http://codereview.chromium.org/8337013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9685 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This is reapplying r9501 with this single change which seemed to be causing most (all) of the failures for r9501.

--- a/src/debug.cc
+++ b/src/debug.cc
@@ -2230,6 +2230,7 @@ Debugger::Debugger(Isolate* isolate)
       compiling_natives_(false),
       is_loading_debugger_(false),
       never_unload_debugger_(false),
+      force_debugger_active_(true),
       message_handler_(NULL),
       debugger_unload_pending_(false),
       host_dispatch_handler_(NULL),

R=kmillikin@chromium.org

BUG=
TEST=

Review URL: http://codereview.chromium.org//8337009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9684 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Also makes func.caller return null if the caller is a bound function,
matching JSC.
Fix bug preventing poisoned setters from triggering.

TEST=mjsunit/function-bind, mjsunit/strict-mode

Review URL: http://codereview.chromium.org/8333019

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9681 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
TEST=

Review URL: http://codereview.chromium.org/8337008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9680 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TEST=GCC 4.5.3 successfully compiles d8.cc even with -Werror enabled.

Review URL: http://codereview.chromium.org/8296018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9679 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

If a GC happened during initialization (when allocating the elements array)
of the non_strict_arguments_boilerplate, heap verification would fail with the following assert:

ASSERT_EQ((map()->has_fast_elements() || map()->has_fast_smi_only_elements()),
            (elements()->map() == GetHeap()->fixed_array_map() ||
             elements()->map() == GetHeap()->fixed_cow_array_map()));

This was not harmful since the boilerplate was setup 
correctly immediatly afterwards.


Simplified the setup code by removing a call to GetElementsTransitionMap. It always return the same map as 
the input object in this case and is therefore unnecessary.


Added more assertions to verify well-formed non-strict
arguments backing store.

BUG=v8:1520
TEST=no more flaky tests with failing this assert.
 
Review URL: http://codereview.chromium.org/8336021

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9678 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Implement same on Mips.

BUG=v8:1774
TEST=mjsunit/function-bind

Review URL: http://codereview.chromium.org/8337012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9677 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

The LookupResult utility class is used in handlified code, but it can
contain a raw pointer to the lookup's holder object.  Create a per-thread
stack of live LookupResults and iterate all the live ones on GC.

R=vegorov@chromium.org,erik.corry@gmail.com
BUG=
TEST=

Review URL: http://codereview.chromium.org/8341009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9676 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/8339013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9675 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/8339011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9674 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

The intention is to store enough scope information for the debugger to
handle stack allocation of block scoped variables introduced by
http://codereview.chromium.org/7860045/ .

This CL is based on
http://codereview.chromium.org/7904008/ .

Review URL: http://codereview.chromium.org/7979001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9673 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/8321002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9666 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/8321001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9665 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/8318003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9664 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=lrn@chromium.org
BUG=v8:893
TEST=test262

Review URL: http://codereview.chromium.org/8320001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9663 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/8312015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9662 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

detecting the ASCII case.  Also rewrite Utf8Length to work on an
unflattened string.  Bug: http://code.google.com/p/v8/issues/detail?id=1665
Review URL: http://codereview.chromium.org/8304021

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9661 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Previously the preparser always accepted natives syntax and let the
real parser throw the syntax error. In ES5, it should be an early error,
so the preparser must catch the error.
The perparser library does not expose parsing for natives syntax, it's
only used internally.

Review URL: http://codereview.chromium.org/8306024

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9660 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Make instanceof work correctly.

BUG=v8:893

Review URL: http://codereview.chromium.org/8199004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9659 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TEST=mjsunit/harmony/block-for.js

Review URL: http://codereview.chromium.org/7837028

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9658 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/8306025

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9657 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jkummerow@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/8317001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9656 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/8271007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9655 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/7904008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9650 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Just use script being native and FLAG_allow_natives_syntax directly.

Review URL: http://codereview.chromium.org/8314018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9643 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=v8:1767
TEST=mjsunit/numops-fuzz doesn't timeout in debug mode

Review URL: http://codereview.chromium.org/8302023

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9642 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

According to the ES5 spec all ">" and "<=" expressions should be be
evaluated left-to-right. This obsoletes old hacks for reversing the
order to be ES3 compliant.

R=lrn@chromium.org
BUG=v8:1752

Review URL: http://codereview.chromium.org/8275035

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9641 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Problematic code is e.g.:

   function typeofViaVariable() {
     var foo = typeof({})
     return foo === "undefined";
   }
Review URL: http://codereview.chromium.org/8283036

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9640 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/8291004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9639 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

It causes an assertion with deoptimizing from inlined code.
Review URL: http://codereview.chromium.org/8277034

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9636 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=whesse@chromium.org
Review URL: http://codereview.chromium.org/8286023

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9635 ce2b1a6d-e550-0410-aec6-3dcde31c8c00