bfin-protos.h (function_arg, [...]): Delete.

bfin-protos.h (function_arg, [...]): Delete.

	* config/bfin/bfin-protos.h (function_arg, function_arg_advance):
	Delete.
	* config/bfin/bfin.h (FUNCTION_ARG, FUNCTION_ARG_ADVANCE): Delete.
	* config/bfin/bfin.c (function_arg_advance): Rename to...
	(bfin_function_arg_advance): ...this.  Make static.  Take const_tree
	and bool arguments.
	(function_arg): Rename to...
	(bfin_function_arg): ...this.  Make static.  Take const_tree and bool
	arguments.
	(TARGET_FUNCTION_ARG, TARGET_FUNCTION_ARG_ADVANCE): Define.

From-SVN: r165182