A fix (bug #11153: Ambiguous call to overloaded function, acording to Visual Studio 6)

sql/item_subselect.cc

@@ -601,7 +601,7 @@ void Item_exists_subselect::fix_length_and_dec()
    max_length= 1;
    max_columns= engine->cols();
   /* We need only 1 row to determine existence */
-  unit->global_parameters->select_limit= new Item_int(1);
+  unit->global_parameters->select_limit= new Item_int((int32) 1);
 }
 
 double Item_exists_subselect::val_real()

sql/sql_yacc.yy

@@ -7985,7 +7985,7 @@ handler:
 	  LEX *lex=Lex;
 	  lex->sql_command = SQLCOM_HA_READ;
 	  lex->ha_rkey_mode= HA_READ_KEY_EXACT;	/* Avoid purify warnings */
-	  lex->current_select->select_limit= new Item_int(1);
+	  lex->current_select->select_limit= new Item_int((int32) 1);
 	  lex->current_select->offset_limit= 0;
 	  if (!lex->current_select->add_table_to_list(lex->thd, $2, 0, 0))
 	    YYABORT;