* ch-exp.y (match_dollar_tokens): Fix off-by-one bug.

	* ch-exp.y (match_dollar_tokens):  Fix off-by-one bug.
	* ch-lang.c (chill_is_varying_struct), ch-lang.h:  New function.
	* ch-lang.c (chill_printstr):  Use double quotes, not single quotes.
	* ch-typeprint.c (chill_type_print_base):  Handle TYPE_CODE_BITSTRING.
	Improve printing of TYPE_CODE_STRING, TYPE_CODE_SET, and
	TYPE_CODE_STRUCT (including checking chill_is_varying_struct).
	Print TYPE_DUMMY_RANGE by printing its TYPE_TARGET_TYPE.
	Handle TYPE_CODE_ENUM.
	* ch-valprint.c (chill_val_print):  Handle TYPE_CODE_BITSTRING.
	For TYPE_CODE_STRING, never print address.  Handle VARYING strings.
	* gdbtypes.c (force_to_range_type):  New.
	* gdbtypes.c (create_set_type):  Make work, following Chill layout.
	* gdbtypes.h (TYPE_LOW_BOUND, TYPE_HIGH_BOUND, TYPE_DUMMY_RANGE): New.
	* stabsread.c (read_type):  Distinguish string and bitstring from
	char-array and set.
	* valarith.c (value_subscript), valops.c (value_coerce_array):
	Handle STRINGs as well as ARRAYs.
	* valarith.c (value_bit_index):  Fix think.  Use new macros.