arm.c (arm_unwind_emit): Use crtl->all_throwers_are_sibcalls instead of cfun->all_throwers_are_sibcalls.

gcc/
	* config/arm/arm.c (arm_unwind_emit): Use
	crtl->all_throwers_are_sibcalls instead of
	cfun->all_throwers_are_sibcalls.
	(arm_output_fn_unwind): Likewise.
	* config/frv/frv.c (frv_stack_info): Use crtl->uses_pic_offset_table
	instead of cfun->uses_pic_offset_table.
	(frv_expand_prologue): Likewise.
	(frv_frame_pointer_required): Likewise.
	(frv_expand_fdpic_call): Likewise.
	(frv_emit_movsi): Likewise.
	* config/iq2000/iq2000.c (iq2000_expand_prologue): Use
	cfun->returns_pcc_struct instead of
	current_function_returns_pcc_struct.
	* config/m32c/m32c.c (need_to_save): Use crtl->calls_eh_return
	instead of cfun->calls_eh_return.
	(m32c_pushm_popm): Likewise.
	* config/xtensa/xtensa.h (cfun->calls_alloca): Remove bogus
	"extern" declaration.

From-SVN: r134835