[Sheriff] Revert "Turn on allocation site pretenuring."

This reverts commit r18547 for breaking the GC stress builders.

BUG=
TBR=hpayer@chromium.org

Review URL: https://codereview.chromium.org/136323002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@18549 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
"dead" and "osr" block flags added to trace output for unreachable and osr entry blocks respectively.

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/135943004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@18550 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Various ApiCheck-related cleanups.

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/130933003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@18551 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
More efficient use of space in AllocationSite.

We can eliminate one word from the object by sharing the pretenuring decision and the found memento count.

R=bmeurer@chromium.org, hpayer@chromium.org

Review URL: https://codereview.chromium.org/132063004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@18554 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Remove ScriptData::PreCompile which takes const char*.

The version taking a Handle should be used instead.

It's not used by Chromium and complicates the ongoing lexer work.

R=svenpanne@chromium.org
BUG=

Review URL: https://codereview.chromium.org/136413003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@18556 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Introduce kGCCallbackForced flag.

This flag will be passed to GC prologue/epilogue callbacks if GC was forced through GC extension.

BUG=
R=dcarney@chromium.org, mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/104023011

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@18558 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Fix r18556; tests were missing handlescopes.

BUG=
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/133763005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@18560 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Introduce an API mirroring the gc extension

BUG=none
R=mstarzinger@chromium.org, svenpanne@chromium.org
LOG=y

Review URL: https://codereview.chromium.org/131443008

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@18563 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Merge remote-tracking branch 'upstream/bleeding_edge' into bleeding_edge