Hello,

Per hints in my last few posts, the architecture methods such as:
	PC_IN_SIGTRAMP
	PC_IN_DUMMY_FRAME
been made obsolete by the frame method:
	get_frame_type
Consequently, this patch deprecates PC_IN_SIGTRAMP.

I should note that architecture code is certainly free to have a local 
pc_in_sigtramp like function, its just that it isn't needed by core-GDB, 
and hence doesn't need to be in the architecture vector.

Ref: [wip/rfc] signal trampoline frames
http://sources.redhat.com/ml/gdb-patches/2004-03/msg00353.html
which will provide a simpler way of implementing signal trampolines.

Ref: [patch/rfc] Use frame_type for sigtramp test in infrun.c
http://sources.redhat.com/ml/gdb-patches/2004-03/msg00357.html
which eliminates the last few PC_IN_SIGTRAMP calls (well at least for 
non-legacy architectures).

comments?

I'll look to commit this in a week,
Andrew