PR ld/12001

	PR ld/12001
	Revert 2010-11-03 Nick Clifton
	* ldlang.c (ldlang_def_chain_list): Delete.
	(insert_defined, ldlang_add_def, lang_place_defineds): Delete.
	(lang_process): Don't call lang_place_defineds.
	(lang_add_assignment): Don't do anything special for --defsym.

	* ldexp.h (struct ldexp_control): Add uses_defined.
	(exp_fold_tree_no_dot): Declare.
	* ldexp.c (exp_fold_tree): Clear uses_defined.
	(exp_fold_tree_no_dot): Likewise.  Make global.
	(fold_name <DEFINED>): Set uses_defined.
	(exp_fold_tree_1 <etree_assign>): Define symbol during first phase
	even when the value being assigned isn't valid.
	* ldlang.c (open_input_bfds): Process assignment statements.
	(lang_process): Bump lang_statement_iteration.
	(scan_for_self_assignment): Formatting.
	(print_assignment): Style.

testsuite/
	* ld-scripts/default-script2.d: Revert 2010-11-03 change.