Fix debuggersupport=off build.

R=ulan@chromium.org
BUG=v8:2754

Review URL: https://codereview.chromium.org/18500003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@15453 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Remove HFixedArrayBaseLength instruction and replace with regular HLoadNamedField.

BUG=

Review URL: https://codereview.chromium.org/18508002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@15454 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Handlify JSObject::SetPrototype method.

R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/18089024

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@15455 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Include statistical profile into profviz.

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/17620008

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@15456 ce2b1a6d-e550-0410-aec6-3dcde31c8c00