* Makefile.in (c-parse.o, c-common.o): Update dependencies.
	* c-common.c: Include diagnostic.h.
	(c_common_finish): New.
	* c-common.h (c_common_finish): New.
	* c-lang.c (LANG_HOOKS_FINISH): Override.
	* c-parse.in: Don't include diagnostic.h.
	(finish_parse): Remove.
	* langhooks.h: Update comments.
	* toplev.c (lang_dependent_init): New prototype.
	(finalize): New.
	(compile_file): Split cleanup code out to finalize.
	(lang_dependent_init): Stop if lang_hooks.init fails.
	(toplev_main): Update.
	* tree.h (finish_parse): Remove.

ada:	* misc.c (gnat_decode_option, gnat_init_options): Make definitions
	static too.
	(gnat_init): Don't return NULL.
	(finish_parse): Remove.
cp:	* lex.c (cxx_finish): Call c_common_finish.
	(finish_parse): Remove.
f:	* com.c (finish_parse): Remove.
	(ffe_finish): Move body of finish_parse.
java:	* lang.c (finish_parse): Rename to java_finish.
	(LANG_HOOKS_FINISH, java_finish): New.
objc:	* objc-act.c (LANG_HOOKS_FINISH): Override.

From-SVN: r47141