don't allow `KILL QUERY ID USER xxx`

mysql-test/r/kill.result

@@ -415,3 +415,8 @@ ALTER TABLE t2 DROP c;
 UNLOCK TABLES;
 DROP VIEW v1;
 DROP TABLE t1, t2;
+#
+# KILL QUERY ID USER
+#
+kill query id user 'foo';
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ''foo'' at line 1

mysql-test/t/kill.test

@@ -663,3 +663,9 @@ ALTER TABLE t2 DROP c;
 UNLOCK TABLES;
 DROP VIEW v1;
 DROP TABLE t1, t2;
+
+--echo #
+--echo # KILL QUERY ID USER
+--echo #
+--error ER_PARSE_ERROR
+kill query id user 'foo';

sql/sql_yacc.yy

@@ -1033,7 +1033,7 @@ bool my_yyoverflow(short **a, YYSTYPE **b, ulong *yystacksize);
   Currently there are 98 shift/reduce conflicts.
   We should not introduce new conflicts any more.
 */
-%expect 109
+%expect 115
 
 /*
    Comments for TOKENS.
@@ -13525,7 +13525,7 @@ kill:
             lex->sql_command= SQLCOM_KILL;
             lex->kill_type= KILL_TYPE_ID;
           }
-          kill_type kill_option kill_expr
+          kill_type kill_option
           {
             Lex->kill_signal= (killed_state) ($3 | $4);
           }
@@ -13538,16 +13538,21 @@ kill_type:
         ;
 
 kill_option:
-          /* empty */    { $$= (int) KILL_CONNECTION; }
-        | CONNECTION_SYM { $$= (int) KILL_CONNECTION; }
-        | QUERY_SYM      { $$= (int) KILL_QUERY; }
-        | QUERY_SYM ID_SYM
+          opt_connection kill_expr { $$= (int) KILL_CONNECTION; }
+        | QUERY_SYM      kill_expr { $$= (int) KILL_QUERY; }
+        | QUERY_SYM ID_SYM expr
           {
             $$= (int) KILL_QUERY;
             Lex->kill_type= KILL_TYPE_QUERY;
+            Lex->value_list.push_front($3, thd->mem_root);
           }
         ;
 
+opt_connection:
+          /* empty */    { }
+        | CONNECTION_SYM { }
+        ;
+
 kill_expr:
         expr
         {
@@ -13560,7 +13565,6 @@ kill_expr:
           }
         ;
 
-
 shutdown:
         SHUTDOWN { Lex->sql_command= SQLCOM_SHUTDOWN; }
         ;