* gdbtypes.c (create_array_type): Complete rewrite. Now requires

	* gdbtypes.c (create_array_type):  Complete rewrite.  Now requires
	a optional type to decorate as an array type, the type of the
	index, and the bounds of the array.  Records this additional info
	in the array type for use with languages with nonzero array
	bounds.
	* gdbtypes.h (enum type_code):  Update comment for TYPE_CODE_ARRAY
	to note that arrays may have bounds.
	* gdbtypes.h (create_array_type):  Update prototype.
	* c-exp.y (ptype production):  Adjust for new create_array_type
	calling conventions.
	* coffread.c (decode_type):  Call create_array_type rather than
	handcrafting array types.
	* convex-tdep.c (value_type):  Remove, now use create_array_type.
	* convex-tdep.c (value_of_trapped_internalvar):  Convert calls to
	vector_type into calls to create_array_type.
	* dwarfread.c (decode_subscr_data):  Name changed to
	decode_subscript_data_item throughout.
	* dwarfread.c (decode_subscript_data_item):  Rewrite to use
	create_array_type.  Now records index type and range as well.
	* dwarfread.c (dwarf_read_array_type):  Rewrite as part of
	change to use create_array_type.
	* dwarfread.c (read_subroutine_type):  Test existing user defined
	types before decorating them, to ensure they are blank, and
	complain about it if they are not.
	* dwarfread.c (decode_fund_type):  For unrecognized types, always
	return some valid type (type integer).  If the unrecognized type
	cannot be an implementation defined type, complain as well.
	* m88k-tdep.c (pushed_size):  Update comment for TYPE_CODE_ARRAY.
	* m88k-tdep.c (store_param):  Update comment for TYPE_CODE_ARRAY.
	* mipsread.c (upgrade_type):  Add FIXME comment that code to
	handcraft arrays should be replaced with call to create_array_type.
	* stabsread.c (read_array_type):  Replace code to handcraft
	array types with call to create_array_type.
	* valprint.c (type_print_varspec_prefix):  Minor formatting
	change, join lines that don't need to be split.