增加mysql创建存储过程时参数可选类型IN|OUT|INOUT

src/main/java/com/alibaba/druid/sql/parser/Keywords.java

@@ -135,7 +135,7 @@ public class Keywords {
         map.put("GRANT", Token.GRANT);
         map.put("REVOKE", Token.REVOKE);
         
-        // MySql procedure by:zz
+        // MySql procedure: add by zz
         map.put("WHILE", Token.WHILE);
         map.put("DO", Token.DO);
         map.put("DECLARE", Token.DECLARE);
@@ -148,6 +148,8 @@ public class Keywords {
         map.put("CLOSE", Token.CLOSE);
         map.put("CURSOR", Token.CURSOR);
         map.put("FETCH", Token.FETCH);
+        map.put("OUT", Token.OUT);
+        map.put("INOUT", Token.INOUT);
         
         DEFAULT_KEYWORDS = new Keywords(map);
     }

src/main/java/com/alibaba/druid/sql/parser/Token.java

@@ -128,7 +128,7 @@ public enum Token {
     SHOW("SHOW"),
     REPLACE("REPLACE"),
     
-    // MySql procedure by:zz
+    // MySql procedure add by zz
     WHILE("WHILE"),
     DO("DO"),
     LEAVE("LEAVE"),
@@ -137,6 +137,8 @@ public enum Token {
     UNTIL("UNTIL"),
     OPEN("OPEN"),
     CLOSE("CLOSE"),
+    OUT("OUT"),
+    INOUT("INOUT"),
     
     //postgresql
     WINDOW("WINDOW"),