MIPS: This is a preview of a first step towards unification of the hydrogen call machinery.

Port r18626 (d3368a4c)

Original commit message:
The change replaces CallNamed, CallKeyed, CallConstantFunction and CallKnownGlobal hydrogen instructions with two new instructions with a more lower level semantics:

1. CallJSFunction for direct calls of JSFunction objects (no
   argument adaptation)

2. CallWithDescriptor for calls of a given Code object according to
   the supplied calling convention.

Details:

CallJSFunction should be straightforward, the main difference from the
existing InvokeFunction instruction is the absence of argument adaptor
handling. (As a next step, we will replace InvokeFunction with an
equivalent hydrogen code.)

For CallWithDescriptor, the calling conventions are represented by a
tweaked version of CallStubInterfaceDescriptor. In addition to the
parameter-register mapping, we also define parameter-representation
mapping there. The CallWithDescriptor instruction has variable number of
parameters now - this required some simple tweaks in Lithium, which
assumed fixed number of arguments in some places.

The calling conventions used in the calls are initialized in the
CallDescriptors class (code-stubs.h, <arch>/code-stubs-<arch>.cc), and
they live in a new table in the Isolate class. I should say I am not
quite sure about Representation::Integer32() representation for some of
the params of ArgumentAdaptorCall - it is not clear to me wether the
params could not end up on the stack and thus confuse the GC.

The change also includes an earlier small change to argument adaptor
(https://codereview.chromium.org/98463007) that avoids passing a naked
pointer to the code entry as a parameter. I am sorry for packaging that
with an already biggish change.

Performance implications:

Locally, I see a small regression (.2% or so). It is hard to say where
exactly it comes from, but I do see inefficient call sequences to the
adaptor trampoline. For example:

;;; <@78,#24> constant-t
bf85aa515a     mov edi,0x5a51aa85          ;; debug: position 29
;;; <@72,#53> load-named-field
8b7717         mov esi,[edi+0x17]          ;; debug: position 195
;;; <@80,#51> constant-s
b902000000     mov ecx,0x2                 ;; debug: position 195
;;; <@81,#51> gap
894df0         mov [ebp+0xf0],ecx
;;; <@82,#103> constant-i
bb01000000     mov ebx,0x1
;;; <@84,#102> constant-i
b902000000     mov ecx,0x2
;;; <@85,#102> gap
89d8           mov eax,ebx
89cb           mov ebx,ecx
8b4df0         mov ecx,[ebp+0xf0]
;;; <@86,#58> call-with-descriptor
e8ef57fcff     call ArgumentsAdaptorTrampoline  (0x2d80e6e0)    ;; code: BUILTIN

Note the silly handling of ecx; the hydrogen for this code is:

0 4 s27 Constant 1  range:1_1 <|@
0 3 t30 Constant 0x5bc1aa85 <JS Function xyz (SharedFunctionInfo 0x5bc1a919)> type:object <|@
0 1 t36 LoadNamedField t30.[in-object]@24 <|@
0 1 t38 Constant 0x2300e6a1 <Code> <|@
0 1 i102 Constant 2  range:2_2 <|@
0 1 i103 Constant 1  range:1_1 <|@
0 2 t41 CallWithDescriptor t38 t30 t36 s27 i103 i102 #2 changes[*] <|@

BUG=
R=plind44@gmail.com

Review URL: https://codereview.chromium.org/137663005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@18630 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
MIPS: Fix Win32 buildbreak (caused by overriden methods that have disappeared while having the patch out for code review).

Port r18627 (c2ba7b25)

BUG=
R=plind44@gmail.com

Review URL: https://codereview.chromium.org/140203002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@18631 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Removed apiutils.h and related cleanup.

ExtensionConfiguration is just a simple container for extension names
(in a perfect world we would use vector<string> and range-based for
loops), and HandleScopeData was in the totally wrong place. Some
additional cleanup on the way, e.g. using the null pattern behind our
external API.

R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/139393002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@18632 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Prepare push to trunk.  Now working on version 3.24.18.

R=jkummerow@chromium.org
TBR=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/140683002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@18633 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Fix ChangeLog entry.

Remove an issue from the ChangeLog that was reverted.

BUG=
TBR=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/139383007

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@18636 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Refactor DeoptimizeDependentCodeGroup.

BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/137783016

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@18639 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Update load_rax and store_rax to support X32

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/103843002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@18640 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Deopt marked code at safe deoptimization point when pretenuring.

BUG=
R=bmeurer@chromium.org, mvstanton@chromium.org

Review URL: https://codereview.chromium.org/138033012

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@18641 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Fix handling of last position for lazy deopt on X64, ARM and MIPS.

BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/140773002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@18642 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Enable allocation site pretenuring.

BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/133703015

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@18643 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Robustified extension installation a bit.

Removed ADDRESS_SANITIZER #ifdefs, the extension is so tiny that it's
not worth the clutter.

R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/138143014

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@18645 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Implement in-heap backing store for typed arrays.

This adds a fixed array sub-type that will represent a backing store for
typed arrays allocated with TypedArray(length) construtor.

R=mvstanton@chromium.org, verwaest@chromium.org

Review URL: https://codereview.chromium.org/101413006

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@18646 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Revert "Implement in-heap backing store for typed arrays."

This reverts commit r18646 for breaking Win32 build.

TBR=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/132233012

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@18647 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Fix tree check in merge-to-branch script.

BUG=
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/138963006

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@18648 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Implement in-heap backing store for typed arrays.

This adds a fixed array sub-type that will represent a backing store for
typed arrays allocated with TypedArray(length) construtor.

R=mvstanton@chromium.org, verwaest@chromium.org

Committed: https://code.google.com/p/v8/source/detail?r=18646

Review URL: https://codereview.chromium.org/101413006

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@18649 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Revert "Implement in-heap backing store for typed arrays."

This reverts commit r18649 for breaking Linux/nosnap and Win64 tests.

TBR=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/140793003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@18650 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Implement in-heap backing store for typed arrays.

This adds a fixed array sub-type that will represent a backing store for
typed arrays allocated with TypedArray(length) construtor.

R=mvstanton@chromium.org, verwaest@chromium.org

Review URL: https://codereview.chromium.org/101413006

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@18651 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
MIPS: Implement in-heap backing store for typed arrays.

Port r18651 (49744859)

Original commit message:
This adds a fixed array sub-type that will represent a backing store for
typed arrays allocated with TypedArray(length) construtor.

BUG=
R=plind44@gmail.com

Review URL: https://codereview.chromium.org/141143003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@18652 ce2b1a6d-e550-0410-aec6-3dcde31c8c00