Fix of compiler errors.

storage/maria/ma_loghandler.c:
  Awoiding signed and unsigned comporison.
storage/maria/ma_loghandler.h:
  debug function.
storage/maria/unittest/ma_loghandler_examples.c:
  debug function.

storage/maria/ma_loghandler.c

@@ -458,7 +458,7 @@ void translog_lock_handler_assert_owner()
   @param num             how many records should be filled
 */
 
-static max_allowed_translog_type= 0;
+static uint max_allowed_translog_type= 0;
 
 void check_translog_description_table(int num)
 {

storage/maria/ma_loghandler.h

@@ -312,7 +312,9 @@ extern my_bool translog_init_with_table(const char *directory,
                                         my_bool readonly,
                                         void (*init_table_func)(),
                                         my_bool no_error);
+#ifndef DBUG_OFF
 void check_translog_description_table(int num);
+#endif
 
 extern my_bool
 translog_write_record(LSN *lsn, enum translog_record_type type, TRN *trn,

storage/maria/unittest/ma_loghandler_examples.c

@@ -59,7 +59,9 @@ void translog_example_table_init()
        i < LOGREC_NUMBER_OF_TYPES;
        i++)
     log_record_type_descriptor[i].rclass= LOGRECTYPE_NOT_ALLOWED;
+#ifndef DBUG_OFF
   check_translog_description_table(LOGREC_VARIABLE_RECORD_2LSN_EXAMPLE);
+#endif
 }