port r23579.

This CL includes the part of changes for X87 port which is missed in r23579.
(https://codereview.chromium.org/526223002).

original commit message:

  Use Chrome compatible naming for compiler specifics.
  Less useless creativity is best creativity!

BUG=
R=weiliang.lin@intel.com

Review URL: https://codereview.chromium.org/531723002

Patch from Chunyang Dai <chunyang.dai@intel.com>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23587 ce2b1a6d-e550-0410-aec6-3dcde31c8c00