Fixed BUG#6600: Stored procedure crash after repeated calls with check table.

Sedond attempt: Simply disallow CHECK in SPs, since it can't work.


mysql-test/r/sp-error.result:
  New test cast for BUG#6600
mysql-test/r/sp.result:
  Removed old test case for BUG#6600
mysql-test/t/sp-error.test:
  New test cast for BUG#6600
mysql-test/t/sp.test:
  Removed old test case for BUG#6600
sql/share/errmsg.txt:
  Made the SP bad statement error message more general.
sql/sp_head.cc:
  CHECK is not possible in stored procedures.
sql/sql_parse.cc:
  Undid attempt to fix CHECK in stored procedures, it didn't work.
sql/sql_yacc.yy:
  CHECK is not possible in stored procedures.
  (And updated error messages for LOCK/UNLOCK.)

sql/sql_parse.cc

@@ -27,7 +27,6 @@
 
 #include "sp_head.h"
 #include "sp.h"
-#include "sp_cache.h"
 
 #ifdef HAVE_OPENSSL
 /*
@@ -3046,7 +3045,6 @@ unsent_create_error:
       goto error; /* purecov: inspected */
     thd->slow_command=TRUE;
     res = mysql_check_table(thd, first_table, &lex->check_opt);
-    sp_cache_invalidate();
     break;
   }
   case SQLCOM_ANALYZE: