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
Merge remote-tracking branch 'upstream/master'