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Review URL: http://codereview.chromium.org/18551

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Reduces number of pushes when flushing a trace. Some are converted to clears
in the undo-code instead, and some just ignored if they have no value worth restoring.


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when transforming from slow to fast-case array elements.

This fixes issue 201:
  
   http://code.google.com/p/v8/issues/detail?id=201
   
Review URL: http://codereview.chromium.org/18711

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The check whether a 32-bit signed integer is in the Smi
range is now Sign bit( value + 0x40000000 ) == 0,
done with a single cmp instruction.
Review URL: http://codereview.chromium.org/18710

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act as if they have no properties in their prototype chains.

This fixes V8 issue 193:

  http://code.google.com/p/v8/issues/detail?id=193.
Review URL: http://codereview.chromium.org/18709

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verification code and updating outdated comments.
Review URL: http://codereview.chromium.org/18502

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values.

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a const variable can be deleted between its declaration and its
initialization.

This fixes issue 189:

  http://code.google.com/p/v8/issues/detail?id=189

Review URL: http://codereview.chromium.org/18660

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Added handling of hidden prototype objects when collecting local properties for an object mirror. The property names provided by an object mirror now includes all properties from the object and any hidden prototypes merged together.

Changed the name of Runtime_GetPrototype to Runtime_DebugGetPrototype to indicate that it is a debugger related function and changed its implementation to do the correct __proto__ lookup.

Added some more information to the Map debug print.
Review URL: http://codereview.chromium.org/18658

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Review URL: http://codereview.chromium.org/18493

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and get rid of the mutability of the Operand byte buffer.
Review URL: http://codereview.chromium.org/18656

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RegExp parser forgot to advance after reading \c in character class. I.e., \cM was interpreted as \ccM.


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BUG=1250705
Review URL: http://codereview.chromium.org/18492

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this failure is that this test depends on a particular optimization in
jscre that we don't yet have, but that we will get very soon.


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minimal so it's easier to revert partially or fully.


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When getting properties for the global object proxy the properties from the global object are returned.

Script objects now have handles and are serialized by reference.

Added special handling for NaN.
Review URL: http://codereview.chromium.org/18445

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Review URL: http://codereview.chromium.org/18613

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Review URL: http://codereview.chromium.org/18612

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bytecode format.  This provides a nice speedup on Intel and probably an
even better one on ARM.  Also removes the 256-register limitation on the
interpreter.
Review URL: http://codereview.chromium.org/18363

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thread with preemption enabled.


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Review URL: http://codereview.chromium.org/18405

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insisting that it should match.
Review URL: http://codereview.chromium.org/18360

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features.  Switch on Irregexp by default.
Review URL: http://codereview.chromium.org/18193

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Review URL: http://codereview.chromium.org/18353

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Added quoting of the name of the ref property using {"ref":1} instead of {ref:1}. The Chrome C++ JSON parser implementation requires quoted property names.

Changed the JSON format for non finite numbers. The previous formatting using NaN, Infinite and -Infinite caused the Chrome C++ JSON parser implementation to fail. Values "NaN", "Infinite" and "-Infinite" (incuding quotes) are now used.

Reverted changes to DebugLookupResultValue (runtime.cc) from http://codereview.chromium.org/17377. The change caused callback into Chrome with the current V8 context expected to have a DOM Window global object. This is not the case when the debugger context is the active context. This causes properties from interceptors and accessors to be reported as undefined in the debugger.
Review URL: http://codereview.chromium.org/18194

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- Add regexp-stack.[cpp|h]

Review URL: http://codereview.chromium.org/18344

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TBR=ager
Review URL: http://codereview.chromium.org/18150

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Changed a cast that caused alignment problems on ARM.
Review URL: http://codereview.chromium.org/18312

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Review URL: http://codereview.chromium.org/18310

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it is assigned a numeric handle. Handles are used to make a 1:1
correspondence between objects and mirrors. Currently the mirrors are
cached in a JavaScript array and when creating a mirror this cache is
checked to see if a mirror already exists for the object. This cache is
cleared when leaving the debugger.

Changed the serialization format to take advantage of these handles. When
an object is serialized referenced objects are represented just by their
handle id serialized as '{ref:<handle>}'. During serialization the
referenced handles are collected and the serializer can provide a
serialization of all the referenced objects.

Removed the special handling of array properties. Indexed properties and
the length property are now rendered as named properties in the
serialization.

Removed the special serialization handling of RegExp properties. The
properties 'source', 'global', 'ignoreCase' and 'multiline' are serialized
with the rest of the properties.

Changed a lot of tests to handle the changed format.
Review URL: http://codereview.chromium.org/18092

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Review URL: http://codereview.chromium.org/18142

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instead of normal JSObjects.

This ensures that __proto__ and accessors on the Object prototype do
not interfere with catch scopes.  Also, it fixes the bug that catch
variables were not DontDelete (issue 74).

Next step is to create special lookup routines for context extension
objects and remove the special handling of context extension objects
from the general javascript object lookup routines.
Review URL: http://codereview.chromium.org/18143

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Review URL: http://codereview.chromium.org/18094


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The problem is that Disable/EnableAccessCheck on an object may chnage its constructor's behavior
if object's map is the same as constructor's initial map. By copying maps, the constructor's
initial map is not changed.

Review URL: http://codereview.chromium.org/18067

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