2003-09-30 David Carlton <carlton@kealia.com>

2003-09-30  David Carlton  <carlton@kealia.com>

	* dwarf2read.c (struct die_info): Add 'parent' field; replace
	'has_children' and 'next' by 'child' and 'sibling'.
	(read_comp_unit): Rework algorithm, breaking body into
	read_die_and_children and read_die_and_siblings.
	(read_die_and_children, read_die_and_siblings): New.
	(read_full_die): Add 'has_children' argument; set it instead of
	the die's 'has_children' field.  Minor formatting cleanup.
	(free_die_list): Use die->child and die->sibling instead of
	die->next.
	(dump_die_list): Ditto.
	(sibling_die): Use die->sibling.
	(psymtab_to_symtab_1): Use die's 'child' field in place of its
	'has_children' and 'next' fields.
	(process_die, read_file_scope, read_func_scope)
	(read_lexical_block_scope, read_structure_scope)
	(read_enumeration, read_array_type, read_common_block)
	(read_namespace, read_subroutine_type, dump_die): Ditto.