gcc/
	* rtl.h (target_rtl): Remove lang_dependent_initialized.
	* toplev.c (initialize_rtl): Don't use it.  Move previously
	"language-dependent" calls to...
	(backend_init): ...here.
	(lang_dependent_init_target): Don't set lang_dependent_initialized.
	Assert that RTL initialization hasn't happend yet.

From-SVN: r213004