opts.c (in_fnames, [...]): Moved here from c-opts.

	* opts.c (in_fnames, num_in_fnames):  Moved here from c-opts.
	(add_input_filename):  New function.
	(handle_options):  Call add_input_filename directly instead of
	with a lang hook.
	* opts.h (in_fnames, num_in_fnames):  Moved here.
	(add_input_filename):  Declare.
	* c-decl.c:  Need to #include opts.h.
	* Makefile.in (c-decl.o):  Also depends on opts.h.
	* c-opts.c (in_fnames, num_in_fnames):  Moved to opts.c.
	(c_common_handle_filename):  Replaced by add_input_filename.
	* c-common.h (in_fnames, num_in_fnames, c_common_handle_filename):
	Remove.
	* langhooks.h (struct lang_hooks):  Remove handle_filename hook.
	* langhooks-def.h (LANG_HOOKS_HANDLE_FILENAME):  Remove macro.
	(LANG_HOOKS_INITIALIZER):  Remove use of LANG_HOOKS_HANDLE_FILENAME.
	* c-lang.c (LANG_HOOKS_HANDLE_FILENAME):  Remove macro.

From-SVN: r70012