binutils/

binutils/
	* objcopy.c (localize_hidden): New variable.
	(OPTION_LOCALIZE_HIDDEN): New command_line_switch value.
	(copy_options): Add --localize-hidden.
	(copy_usage): Mention --localize-hidden.
	(is_hidden_symbol): New function.
	(filter_symbols): Handle localize_hidden.
	(copy_object): Call filter_symbols if localize_hidden.
	(copy_main): Handle OPTION_LOCALIZE_HIDDEN.
	* doc/binutils.texi (--localize-hidden): Document new option.

binutils/testsuite/
	* binutils-all/localize-hidden-1.s,
	* binutils-all/localize-hidden-1.d,
	* binutils-all/localize-hidden-2.s,
	* binutils-all/localize-hidden-2.d: New tests.
	* binutils-all/objcopy.exp: Run them.