Bug #13231 mysqltest: fails to dectect when mysql_next_result fails

- Added functionality to check errors returned from mysql_next_result
 - Exit from mysqltest when and unexpected error occurs.
 - The above fixes reveal problems with rpl000009, sp-error and query_cache-
 - Fix sp-error by adding an expected error
 - Fix rpl000009 by not sending "ok" from mysql_create_db when called with silent flag from load_master_data
 - Fix query_cache in separate patch


client/mysqltest.c:
  Check and handle error after mysql_next_result
  Change several verbose_msg to die so that the error is properly reported
  Clean up of error handling code in run_query_stmt, check all errors and use common
  function handle_error.
mysql-test/r/mysqltest.result:
  mysqltest now dies when a query fails with wrong errno
mysql-test/r/sp-error.result:
  Update test result to match the expected error from calling the sp closing a cursor that is not open.
mysql-test/t/sp-error.test:
  Add missing --error 1326 before call to sp that closes a already closed cursor.
  Add test for bug9367
sql/sql_db.cc:
  Don't send ok in mysql_create_db if silent flag is set.

mysql-test/t/sp-error.test

@@ -991,6 +991,7 @@ P1: BEGIN
   SELECT 'end of proc';
 END P1|
 delimiter ;|
+--error 1326
 call SP001();
 drop procedure SP001;
 drop table t1, t2;
@@ -1187,7 +1188,30 @@ delimiter ;|
 create trigger bug12712
   before insert on t1 for each row set session autocommit = 0;
 
-
+#
+# BUG#9367: Stored procedures: client hang after "show warnings"
+#
+--disable_parsing
+--disable_warnings
+drop procedure if exists bug9367;
+--enable_warnings
+create table t1 (s1 int);
+select s1 from t1;
+delimiter |;
+create procedure bug9367()
+begin
+  declare v int;
+  declare c cursor for select s1 from t1;
+  open c;
+  show warnings;
+  fetch c into v;
+  select v;
+end|
+delimiter ;|
+call bug9367();
+drop procedure bug9367;
+drop table t1;
+--enable_parsing
 #
 # BUG#NNNN: New bug synopsis
 #