Refactor to use has_delayed_token macro

parse.y

@@ -6294,7 +6294,7 @@ ripper_dispatch_delayed_token(struct parser_params *p, enum yytokentype t)
     int saved_line = p->ruby_sourceline;
     const char *saved_tokp = p->lex.ptok;
 
-    if (NIL_P(p->delayed.token)) return;
+    if (!has_delayed_token(p)) return;
     p->ruby_sourceline = p->delayed.beg_line;
     p->lex.ptok = p->lex.pbeg + p->delayed.beg_col;
     add_mark_object(p, yylval_rval = ripper_dispatch1(p, ripper_token2eventid(t), p->delayed.token));