* arm-tdep.c (arm_minimal_frame_chain): Renamed from

	* arm-tdep.c (arm_minimal_frame_chain): Renamed from
	arm_frame_chain.  Take NEXT_FRAME and CACHE arguments.
	Use the cache instead of DEPRECATED_FRAME_SAVED_PC.
	(arm_minimal_frame_info): Renamed from arm_init_extra_frame_info.
	Take NEXT_FRAME and CACHE arguments.  Call
	FRAMELESS_FUNCTION_INVOCATION instead of checking FROMLEAF argument.
	Set unwound_pc in CACHE instead of modifying the frame argument.
	Don't bother checking the frame type when looking for sigtramp
	frames.
	(arm_make_prologue_cache, arm_frame_chain)
	(arm_init_extra_frame_info): New functions.