* dwarf2read.c (read_subroutine_type): Set TYPE_FLAG_PROTOTYPED

	* dwarf2read.c (read_subroutine_type):  Set TYPE_FLAG_PROTOTYPED
	on C++ functions.
	* valops.c (value_arg_coerce):  Add new argument to indicate whether
	the function has a prototype, handle integer and float promotions
	accordingly.
        (call_function_by_hand):  Always call value_arg_coerce, pass down
	prototype information.