updated for version 7.3.1133

Problem:    New regexp engine is a bit slow.
Solution:   Skip ahead to a character that must match.  Don't try matching a
            "^" patter past the start of line.

src/regexp.h

@@ -87,6 +87,10 @@ typedef struct
     unsigned		regflags;
 
     nfa_state_T		*start;		/* points into state[] */
+
+    int			reganch;	/* pattern starts with ^ */
+    int			regstart;	/* char at start of pattern */
+
     int			has_zend;	/* pattern contains \ze */
     int			has_backref;	/* pattern contains \1 .. \9 */
 #ifdef FEAT_SYN_HL