updated for version 7.3.1106

Problem:    New regexp engine: saving and restoring lastlist in the states
            takes a lot of time.
Solution:   Use a second lastlist value for the first recursive call.

src/regexp.h

@@ -72,7 +72,7 @@ struct nfa_state
     nfa_state_T		*out;
     nfa_state_T		*out1;
     int			id;
-    int			lastlist;
+    int			lastlist[2]; /* 0: normal, 1: recursive */
     int			negated;
     int			val;
 };