[RFA] Recognize various saves in arm_scan_prologue

[Michael Snyder]

Richard Earnshaw wrote:
> 
> >
> > This adds to arm_scan_prologue the same insns that my previous
> > patch added to arm_skip_prologue.  Trying to keep 'em in sync...
> >
> > 2002-04-23  Michael Snyder  <msnyder@redhat.com>
> >
> >       * arm-tdep.c (arm_scan_prologue): Move "mov ip, sp" into the
> >       loop.  Add handling for "str lr, [sp, #-4]!" and for saves
> >       of argument regs ("str r(0123), [r11, #-nn"]).
> >

Committed.