X87: InterfaceDescriptor becomes CallInterfaceDescriptor.

port r23560.

original commit message:

  InterfaceDescriptor becomes CallInterfaceDescriptor.

  There was no difference between these two classes in a hierarchical relationship.

BUG=
R=weiliang.lin@intel.com

Review URL: https://codereview.chromium.org/530903002

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

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23576 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Merge remote-tracking branch 'upstream/master'