Port r16961 (ce471468)

Original commit message:
This step reorders the FunctionCallbackInfo fields.

BUG=
R=plind44@gmail.com

Review URL: https://codereview.chromium.org/24857002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16971 ce2b1a6d-e550-0410-aec6-3dcde31c8c00