Add 4K more memory for HugeConsStringOutOfMemory test case

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/18068007

Patch from Haitao Feng <haitao.feng@intel.com>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@15472 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Convert UnaryOpStub to a HydrogenCodeStub

BUG=
R=danno@chromium.org

Review URL: https://codereview.chromium.org/17229005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@15473 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Fix GDBJIT compilation on Mac after r15467.

R=machenbach@chromium.org

Review URL: https://codereview.chromium.org/18259007

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@15474 ce2b1a6d-e550-0410-aec6-3dcde31c8c00