real to true for lang_input_file_is_marker_enum.  Clear the_bfd.
	(lang_add_input_file): Pass true to new_afile for add_to_list.
	(lookup_name): Remove force_load argument.  Changed all callers.
	Pass false to new_afile for add_to_list.  Split loading of symbols
	out into separate function.
	(load_symbols): New function split out of lookup_name.  Don't load
	the symbols if they are already loaded.
	(open_input_bfds): For lang_input_statement_enum call load_symbols
	rather than lookup_name.
	(lang_process): Pass abs_output_section rather than NULL to
	lang_size_sections.
	(lang_startup): Set real field of first_file to true.