[patch/rfc] Add frame type and mask to tramp-frame

[Andrew Cagney]

> 2004-05-11  Andrew Cagney  <cagney@redhat.com>
> 
> 	* tramp-frame.h (struct tramp_frame): Change "insn" to a struct
> 	containing both bytes and mask.  Add "frame_type".
> 	* tramp-frame.c (tramp_frame_start): Update.
> 	(tramp_frame_prepend_unwinder): Update.
> 	* mips-linux-tdep.c (mips_linux_o32_sigframe)
> 	(mips_linux_o32_rt_sigframe, mips_linux_n32_rt_sigframe)
> 	(mips_linux_n64_rt_sigframe): Update.  Make "static const".
> 	* ppcnbsd-tdep.c (tramp_frame ppcnbsd_sigtramp): Update.

I finally got a round to committing this.

Andrew