header: fix field sizes

The flags enum does not fit into 6 bits anymore.

Fix: #218
PR-URL: https://github.com/joyent/http-parser/pull/219
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

http_parser.h

@@ -204,8 +204,8 @@ enum http_errno {
 struct http_parser {
   /** PRIVATE **/
   unsigned int type : 2;         /* enum http_parser_type */
-  unsigned int flags : 6;        /* F_* values from 'flags' enum; semi-public */
+  unsigned int flags : 7;        /* F_* values from 'flags' enum; semi-public */
-  unsigned int state : 8;        /* enum state from http_parser.c */
+  unsigned int state : 7;        /* enum state from http_parser.c */
   unsigned int header_state : 8; /* enum header_state from http_parser.c */
   unsigned int index : 8;        /* index into current matcher */