b4_public_types_declare.

* data/c++.m4 (b4_public_types_declare): New.
	* data/glr.cc, data/lalr1.cc: Use it.

data/lalr1.cc

@@ -388,21 +388,7 @@ do {                                                            \
   class ]b4_parser_class_name[
   {
   public:
-#ifndef YYSTYPE
-]b4_semantic_type_declare[
-#else
-    typedef YYSTYPE semantic_type;
-#endif]b4_locations_if([
-    /// Symbol locations.
-    typedef b4_percent_define_get([[location_type]]) location_type;])[
-    /// Tokens.
-    struct token
-    {
-      ]b4_token_enums(b4_tokens)[
-    };
-    /// Token type.
-    typedef token::yytokentype token_type;
-
+]b4_public_types_declare[
     /// Build a parser object.
     ]b4_parser_class_name[ (]b4_parse_param_decl[);
     virtual ~]b4_parser_class_name[ ();