Temporarily disable calls to OS::TotalPhysicalMemory to avoid ASSERT when running under the Chrome Sandbox.

This CL reverts the behaviour added in r16983 to avoid calling OS::TotalPhysicalMemory
which fails an assert in the Chrome Sandbox.  It reverts the default
ResourceConstraints behaviour to that of V8 before r16983 (i.e., baseing these
values purely on hard-coded checks against 64bit/32bit and Android/non-Android.
This will be reverted once http://crbug.com/312241 has been resolved.

BUG=312241
R=titzer@chromium.org

Review URL: https://codereview.chromium.org/48463002

Patch from Ross McIlroy <rmcilroy@chromium.org>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17415 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Remove assertion in SetResourceConstraints.

BUG=312233
R=rmcilroy@chromium.org

Review URL: https://codereview.chromium.org/48303004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17416 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Return early from BinaryOpIC::Transition when the JS call failed

This avoids an ASSERT failure in Chromium net_unittests.

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/49103002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17417 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Work around two ASSERTs that we're hitting now that DEBUG is #defined again

R=danno@chromium.org

Review URL: https://codereview.chromium.org/49433002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17418 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Prepare push to trunk.  Now working on version 3.22.24.

R=danno@chromium.org

Review URL: https://codereview.chromium.org/49263003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17419 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Function ElementsAreSafeToExamine was undefined in release heap verify.

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/48963006

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17422 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Temporarily allow HistogramTimerScopes to be nested

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/47513015

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17425 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
ia32: Fix comparisons of two constant double operands when exactly one of them is in new space.

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/46883008

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17428 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Do not remove HAdd with zero if the other operand is a double.

The other operand might be minus zero, and -0 + 0 = +0

R=svenpanne@chromium.org
BUG=

Review URL: https://codereview.chromium.org/52173003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17432 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Add no-variants option to test runner.

BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/48883003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17440 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Fix uint32-to-smi conversion in Lithium

BUG=chromium:309623
R=vegorov@google.com, yangguo@chromium.org

Review URL: https://codereview.chromium.org/54393002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17441 ce2b1a6d-e550-0410-aec6-3dcde31c8c00