gcc/c-family/
	* c-opts.c (c_common_post_options): Bump the current ABI version to
	13.  Set warn_abi_version and flag_abi_compat_version to the current
	version rather than 0.  Fix defaulting flag_abi_compat_version from
	warn_abi_version.
gcc/cp/
	* class.c (classtype_has_non_deleted_move_ctor): New.
	* tree.c (maybe_warn_parm_abi, type_has_nontrivial_copy_init):
	Handle v12 breakage.

From-SVN: r261562