Various changes for sparc64.

	Various changes for sparc64.
	* sparc-tdep.c (NUM_SPARC_FPREGS): Define.
	(SPARC_INTREG_SIZE): Define.
	(*): Use SPARC_INTREG_SIZE instead of REGISTER_RAW_SIZE (intreg)
	where appropriate.
	(enum branch_type): New value `done_retry'.
	(isbranch): Renamed from isannulled.  All callers changed.
	Support new sparc64 branch insns.
	(single_step): Handle done_retry.
	(sparc_extract_struct_value_address): Don't assume 4 byte regs.
	(get_saved_register): Likewise.
	(sparc_push_dummy_frame): Likewise.
	(sparc_frame_find_saved_regs): Likewise.
	(sparc_pop_frame): Likewise.  Don't refer to FPS_REGNUM, CPS_REGNUM,
	or PS_REGNUM if not sparc64.  sparc64 has 64 fp regs.
	(sparc64_extract_struct_value_address): New function.
	(dump_ccreg, sparc_print_register_hook): Likewise.
	* sp64-tdep.c: Deleted.
	* sparc/tm-sp64.h (GDB_TARGET_IS_SPARC64): Define.
	(NUM_REGS): Reduce by 2, cle/tle are in the pstate reg.
	(CC_HAS_LONG_LONG): Define.
	(REGISTER_NAMES): Delete cle/tle and reorganize.
	(PS_REGNUM, FPS_REGNUM, CPS_REGNUM): Delete, they're ifdef'd out of
	sparc-tdep.c now.
	(REGISTER_BYTES): Update.
	(REGISTER_CONVERT_TO_VIRTUAL, REGISTER_CONVERT_TO_RAW): Delete.
	(EXTRACT_RETURN_VALUE): Delete.  Use definition in tm-sparc.h.
	(NO_SINGLE_STEP): Likewise.
	* sparc/tm-sparc.h (EXTRACT_VALUE_RETURN): Don't assume 4 byte regs.
	* sparc/sp64.mt: Move simulator support ...
	* sparc/sp64sim.mt: ... to here.