Move DeepCopy of JSObject from runtime to object.

BUG=

Review URL: https://codereview.chromium.org/13527005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@14121 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Fix hydrogen tracing on x64 and ARM

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/13461020

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@14122 ce2b1a6d-e550-0410-aec6-3dcde31c8c00