(Second try, with fixes. First try: https://codereview.chromium.org/149913006/ )

The long-term goal is to move all recursive descent functions from Parser and
PreParser into ParserBase, but first they need to be unified.

Notes:
- The functions moved in this CL: ParseIdentifier, ParseIdentifierName,
ParseIdentifierNameOrGetOrSet, ParseIdentifierOrStrictReservedWord.
- IOW, this CL removes Parser::ParseIdentifier and PreParser::ParseIdentifier
and adds ParserBase::ParseIdentifier, etc.
- Error reporting used to require virtual funcs; now error reporting is moved to
the Traits too, and ParserBase no longer needs to be virtual.
- I had to move PreParser::Identifier out of the PreParser class, because
otherwise PreParserTraits cannot use it in a typedef.

BUG=v8:3126
LOG=N
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/158913003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19265 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

The stack trace string is an ancient relic that is no longer being used.
We use the structured stack trace object instead.

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/159013002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19264 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Port r19244 (08e0afd9)

BUG=
R=mvstanton@chromium.org, plind44@gmail.com

Review URL: https://codereview.chromium.org/159423003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19263 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Map collection complicates a test that wants to assert on code opt/deopt
because of prototype-chain changes. It can happen that a gc occurs
in the stack guard at the start of optimized function foo that deopts
function foo because of a map being collected and deoptimizing it's
dependent code.

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/159653002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19258 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=bmeurer@chromium.org
TBR=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/159633002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19254 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This assert fails when dumping native counters on x64.

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/151033003

Patch from Weiliang Lin <weiliang.lin@intel.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19253 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/156783004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19252 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This would help a lot with native Javascript code.

R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/156373003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19251 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/152813006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19250 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Now stores to inobject fields do no longer prevent hoisting
and combining of loads from other inobject fields.

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/144423010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19249 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This reverts commit r19427 for breaking the build. Will reland with
fix.

TBR=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/143203005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19248 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Now stores to inobject fields do no longer prevent hoisting
and combining of loads from other inobject fields.

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/144423010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19247 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Port r19244 (08e0afd9)

BUG=
R=plind44@gmail.com

Review URL: https://codereview.chromium.org/159393002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19246 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/157303002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19245 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/137403009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19244 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

NaN value is different on MIPS and x86 architectures, and TEST(NaNx)
tests checks the case where a x86 NaN value is serialized into the snapshot
on the simulator during cross compilation.

BUG=
R=plind44@gmail.com

Review URL: https://codereview.chromium.org/144473008

Patch from Balazs Kilvady <kilvadyb@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19241 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This reverts commit r19230.

Reason: Build failures on NaCl.

BUG=
TBR=marja@chromium.org,mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/158873006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19234 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

MIPS: Fix r19175 "Avoid embedding x86 NaN constant in MacroAssembler code when snapshot is created."

BUG=
R=plind44@gmail.com

Review URL: https://codereview.chromium.org/148523015

Patch from Balazs Kilvady <kilvadyb@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19232 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

The long-term goal is to move all recursive descent functions from Parser and
PreParser into ParserBase, but first they need to be unified.

Notes:
- The functions moved in this CL: ParseIdentifier, ParseIdentifierName,
ParseIdentifierNameOrGetOrSet, ParseIdentifierOrStrictReservedWord.
- IOW, this CL removes Parser::ParseIdentifier and PreParser::ParseIdentifier
  and adds ParserBase::ParseIdentifier, etc.
- Error reporting used to require virtual funcs; now error reporting is moved to
  the Traits too, and ParserBase no longer needs to be virtual.
- I had to move PreParser::Identifier out of the PreParser class, because
otherwise PreParserTraits cannot use it in a typedef.

BUG=v8:3126
LOG=N
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/149913006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19230 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Reland of r19102: Check elimination improvement: propagation of state through phis is supported, CheckMap narrowing implemented with tests.

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/146623006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19229 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=ishell@chromium.org

Review URL: https://codereview.chromium.org/146623007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19228 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=v8:3143
LOG=N
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/144473005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19226 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

If not specified, depot tools tend to ask for an email on the command line once in a while, which makes the automated script hang.

BUG=
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/158733002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19223 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This relands r19196 with fixes.

BUG=v8:3109
LOG=Y
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/141323007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19222 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
R=ishell@chromium.org

Review URL: https://codereview.chromium.org/137883008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19221 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Some of the third-party test cases in the mjsunit test suite were
originally taken from WebKit and are now fully covered by the equally
named test suite.

Mapping of test cases:
 - array-isarray.js -> test/webkit/Array-isArray.js
 - array-splice-webkit.js -> test/webkit/array-splice.js

R=machenbach@chromium.org
BUG=

Review URL: https://codereview.chromium.org/158803002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19220 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/155513008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19219 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=bmeurer@chromium.org
TBR=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/135973011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19214 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/135503004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19213 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Notes:
- This makes Parser and PreParser produce the same errors with the added test
cases (this was not the case before).
- ParseBlock already does Expect(Token::LBRACE), so no need to check it twice.

BUG=v8:3126
LOG=N
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/148233011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19212 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

The direction is to use "movl, movq, movp" instead of introducing new
Macro assembler instructions.

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/101083002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19210 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Plenty of test failures on test262, Mozilla, Webkit. Will have to investigate.

TBR=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/139983003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19203 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

ES6 makes the Function object properties "length" and "name"
configurable; switch the implementation over to follow that.

Doing so exposed a problem in the handling of non-writable, but
configurable properties backed by foreign callback accessors
internally. As an optimization, if such an accessor property is
re-defined with a new value, its setter was passed the new value
directly, keeping the property as an accessor property. However, this
is not correct should the property be non-writable, as its setter will
then simply ignore the updated value. Adjust the enabling logic for
this optimization accordingly, along with adding a test.

LOG=N
R=rossberg@chromium.org, rossberg
BUG=v8:3045

Review URL: https://codereview.chromium.org/116083006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19200 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This reverts r19196.

TBR=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/147443008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19199 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This also makes the "delayed strict mode violations" mechanism in PreParser
unnecessary.

The attached tests didn't pass before this CL but now they do.

BUG=v8:3126
LOG=N
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/157453003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19197 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

\u0085 (NEL) is now considered a whitespace in accordance to http://www.unicode.org/Public/6.3.0/ucd/PropList.txt

R=mstarzinger@chromium.org
BUG=v8:3109
LOG=Y

Review URL: https://codereview.chromium.org/146983007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19196 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Fixed a few more cctests and removed some which were broken for ages
and/or tested nothing useful anymore.

Note that cctests are now fully LeakSanitized (at least on x64)!

R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/157463002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19195 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/157443002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19194 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=3126
LOG=N
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/140183005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19193 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

These tests ensure that PreParser doesn't start producing less data when it's
getting refactored.

BUG=3126
LOG=N
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/157373002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19192 ce2b1a6d-e550-0410-aec6-3dcde31c8c00