re PR c/53063 (encode group options in the .opt files)

re PR c/53063 (encode group options in the .opt files)

2012-10-20  Manuel López-Ibáñez  <manu@gcc.gnu.org>

	PR c/53063
	PR c/40989
c-family/
	* c.opt (Waddress,Wchar-subscripts,Wsign-conversion,Wimplicit,
	Wimplicit-function-declaration,Wimplicit-int,Wsizeof-pointer-memaccess,
	Wnarrowing,Wparentheses,Wpointer-sign,Wreturn-type,Wsequence-point,
	Wsign-compare,Wuninitialized,Wmaybe-uninitialized,Wunused,
	Wvolatile-register-var): Add LangEnabledBy or EnabledBy.
	* c-opts.c (c_common_handle_option): Remove explicit handling from
	here.
	(c_common_post_options): Likewise.
gcc/
	* opts.c (finish_options): Remove explicit handling from here.

From-SVN: r192635