* config/mcore/mcore-protos.h (mcore_function_arg): Delete.
	* config/mcore/mcore.h (FUNCTION_ARG, FUNCTION_ARG_ADVANCE): Delete.
	* config/mcore/mcore.c (mcore_function_arg): Declare.  Make static.
	Take a const_tree and a bool.
	(mcore_function_arg_advance): New function.
	(TARGET_FUNCTION_ARG, TARGET_FUNCTION_ARG_ADVANCE): Define.

From-SVN: r166043