c-common.h (enum c_language_kind): Emphasize that clk_c is 0.

c-common.h (enum c_language_kind): Emphasize that clk_c is 0.

	* c-common.h (enum c_language_kind): Emphasize that clk_c is 0.
	* c-opts.c (parse_option): Rename find_opt.
	(set_std_c99): New function.
	(COMMAND_LINE_OPTIONS): Handle -remap and -o.  Remove OPT_std_bad.
	(missing_arg): Remove OPT_std_bad.  Handle -o.
	(c_common_decode_option): Handle input and output file names,
	-o and -remap.	Clean up -std= handling.
	* cppinit.c (COMMAND_LINE_OPTIONS): Remove OPT_o and OPT_remap.
	(cpp_handle_option): Similarly.  Don't handle filenames.

From-SVN: r56197