* ch-exp.y: Remove ambiguities. Fix or add support for

	* ch-exp.y:  Remove ambiguities.  Fix or add support for
	UNOP_IND, UNOP_CAST, UNOP_ADDR, STRUCOP_STRUCT, OP_TYPE.
	* ch-typeprint.c (chill_print_type):  Move support
	for TYPE_CODE_ARRAY and TYPE_CODE_STRING from here ...
	* ch-typeprint.c (chill_type_print_base): ... here.
	* ch-typeprint.c (chill_type_print_base):  Improve
	support for PTR, REF, and FUNC types.
	* ch-valprint.c:  Prefer H'%x format to 0x%s.
	* ch-valprint.c (chill_val_print):  Add support for printing
	TYPE_CODE_REF (return for LOC parameters and variables).
	Use c_val_print to print random types (including ENUM).
	* ch-valprint,c (chill_print_value_fields):  Make
	output look more like Chill tuples.
	* stabsread.c (read_struct_type):  Factor common code.