* c-opts.c (missing_arg): Make non-static.
	(c_common_handle_option): Don't check for missing arguments.
	* opts.c (handle_option): Check for missing arguments.
ada:
	* misc.c (gnat_handle_option): Don't check for missing arguments.
f:
	* top.c (ffe_handle_option): Don't check for missing arguments.
java:
	* lang.c (java_handle_option): Don't check for missing arguments.
testsuite:
	* const-str-2.m: Update.

From-SVN: r68517