[rfa] i386-tdep.c: add some insn's to prologue analyzer

[Mark Kettenis]

   Date: Mon, 11 Aug 2003 22:17:54 -0400
   From: Michael Elizabeth Chastain <mec@shout.net>

   Hi Mark,

   > I'll move this over to the branch in a few days if things turn out
   > to be allright.

   I just finished a complete test cycle and it's all good in my test bed
   (native i686-pc-linux-gnu, v2 and v3 gcc, dwarf-2 and stabs+),
   so any time you want to port to the branch is okay by me.

Committed to the branch now too.

Mark